February 2019 Tahoe to Whitney High Sierra Backpacking Calendar

Backpacking the
UNMAINTAINED TAHOE TO YOSEMITE TRAIL
Above we see the full length of the Tahoe to Yosemite Trail's unmaintained route through Summit City Canyon in the Mokelumne Wilderness laid out at our feet. Note The Sisters in the upper Right hand corner, and Horse Canyon cutting deeply into Summit City Canyon in the upper-middle-left of the image. At the middle-bottom of the image above we can see the stony course of the bottom-end of Summit Creek just above where it enters the North Mokelumne River.

That point is just above where the North Mokelumne Rive begins its passage through its very narrow steep and sheer granite gorge (you gotta read this) just above where it runs past the Enchanted Forest. Below the Enchanted Forest the river runs through an even steeper and deeper cut of the river canyon from the Enchanted Forest to Camp Irene. Camp Irene is where we began this climb to our South up the NW flank of Mount Reba where we get this fantastic view of Summit City Creek's awesome canyon. We can actually see the river-bed rocks cascading down towards Camp Irene in the shot above. See 'em? That's bottom of Summit City Creek just above where it enters the North Mokelumne River.
Below that point we find the steep, deep, and narrow section where the catastrophic Spring Thaw of 1997 pushed up a massive log jam in this bottle-neck of a canyon just above Camp Irene, causing massive destruction in and around the 75 foot deep pool of surging, grinding, smashing timber backed up behind it, which swept away all in its path below it when it finally snapped.

Devastation swept across the landscape and down the river valley which can still be seen and felt today. Less and less each year.

This year's massive rains, snowpack, and thaw activity will further heal those "wounds."

UPDATE
Feb 22 2017
This year's vast snowpack may rip the Sierra & most of California a "new one" if present precip trends continue into the rising heat of the Spring Thaw.

Labeled Image

Trail Guide Map Miles and Elevations

End of January

February 2019

January February March April May June July August September October November December

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
PRECAUTIONS AND OPPORTUNITY Some backpackers are observing patterns and trajectory of Winter storms and temps to find Hiking Windows into the Winter Wonderland. Others are watching the snow activity/pack to determine when the trails will clear enough to begin their Pacific Crest Trail or John Muir Trail backpacking trips. 2019 FULL WINTER CONDITIONS FEBURARY 1 2019 NORMAL-AVERAGE WINTER SNOW Potentially Indicating a LATE STARTING SPRING SEASON for PCT & JMT HIKERS So Far... 2018 FULL WINTER CONDITIONS 2018: WINTER COLD The Fall Gear has long been stowed or complimented by the heavy Gear of Winter. What's Going On? See November 28 of 2017 Report: FULL WINTER GEAR REQUIRED WINTER of 2018 2018 UPDATE Weak Snows on the Mountains! All High Sierra Weather Info Latest Daily Snow Depth Summary Daily Sierra Snowpack % of Normal pdf Daily Snow-Water & Percent of Average All Precipitation-Snow Data All Snow Surveys SWC & Snow Depth Summer of 2018 Backpacking Plans? Yosemite-Hoover-Desolation & John Muir Trail Hikers: Time to Order Next Year's Permits! Reserved permits for June 2018 now available from Yosemite, Hoover, and Desolation Wilderness Areas. In other words, Yosemite, Desolation, and Hoover Wilderness Areas all offer advanced reservations about six months ahead of your desired hiking dates. This means now is the time to get your JMT permit application, along with other popular hikes, into the Man. Feb 18 Last year, during 2017, at this point in time I was estimating a powerful, potentially catastrophic Spring Thaw. We had snow along the Sierra Crest through the whole Summer. Again, each year's thaw depends on the Winter snowpack against the profile of Spring temps and precip. All Permits Yosemite Permits Desolation Wilderness All Snow Information December Road News & Status Links		29 JAN Cloudy-Misty Misty mild instability warm Jan 28 Snowpack Averages LAST MONTH NEXT WEEK Top	30 JAN Cloudy-Misty Misty mild instability warm Weak Front Should Come Onshore Tonight Overnight Showers HAZARDS Before PM Showers: 2019 *HIGH SIERRA* --Winter-- 12th Temp-Snow Check Last Report: 26th Next Report: February 4th, 2019 Let's check our reporting station snow & temp readings aftert the last day and a half days of misting. This evening should bring some precip... Click the stations below for the latest reports. The Storm expected over the weekend is potentially moderate to strong. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs Noon readings: Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 47" -3.0 7618 feet (17.60 H2O) -0.1 45 & 33 -/- Echo Peak 63" =00" 7652 feet (27.00 H2O) =0.0 45 & 34 -/- American-Yuba Watersheds Carson Pass 60" -2 8388 feet (18.3" H2O) +0.1 46 & 28 +/- Carson-Walker Watersheds Ebbetts Pass 66" =0" 8660 feet (26.40" H2O) +0.1 48 & 28 -/- Leavitt Lake 95" -1 9602 feet, East Flank (27.60" H20) +5.3 ?? 40 & 27 -/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 70 & 29 +/+ Mokelumne-Stanislaus Watersheds Deadman Creek 15.79" -0.67 9250 feet, West Flank (11.30" H20) -0.87" 40 & 18 -/- Tuolumne-Merced Watersheds Tenaya Lake 62.19" -62.19" 8163 feet, West Flank (6.10") H20 =00 46 & 21 -/- Tuolumne Meadows 8600 feet, West Flank 46.81" -2.68" (6.41") H20 +0.58" 46 & 17 -/- Tioga Pass/Dana 9798 feet 48.97" -2.99 10.14" H20 (−0.27) ?? 41 & 18 -/- Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet SNO " Depth Suspect (16.38) H2O) -0.2 temps bad Mammoth Pass 9500 feet 80.17" Snow −2.14 25.12" H2O) -1.64 42 & 24 -/- South Lake Cabin 9580 feet, East Flank (Snow removed ") (22.50 H2O) =0.0 suspect 41 & 18 -/- Big Pine Sawmill 10200 feet, East Flank 33.90" Snow -0.6" 36 & 16 -/- Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank 50.33" Snow -1.18 29.26 H2O +0.18 36 & 19 -/- (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 59.43" -3.17" (x.xx" H2O +x.xx") 39 & 20 -/- (station reporting again!) Crabtree Meadow 10,700 feet 19.40" Snow -1.6" (6.76 H2O) -0.1 (suspect) 37 & 18 -/- All High Sierra Reporting Stations 6 Days of steady warming clarity, A Big High built-in for six days. Weak Offshore Low today, with weak trop moisture, off coast, but High keeping it offshore, moving onshore this evening?	31 JAN Overcast Diminishing Showers mild instability warm All High Sierra Weather And the factors creating it Roads All Radar Winter Storm Warnings All Sierra Forecast Zones All Precip Forecasts !! SEASON-NORMAL SNOW 2019 Current Snowpack: Percent of Average for January 31. N Sierra: 100% -6% in 3 days!! Cen. Sierra:102% -4% in 3 days! S Sierra: 97% -4% in 3 days! Ca State: 100% -5% in 3 days! Last Reading January 28 Next Reading Feb 4 Last Year, Today... Below Statewide Summary of Snow Water Content PDF DROUGHT OVER? Looks Like this 8 year long drought has, finally, ended... At least for this year. THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE FIRST* *GRAPHICS* NOAA-NOHRSC The High Sierra 2-1-19 SATELLITE SKY EYES MODIS High Sierra Satellite View REPORTING STATIONS NEW Temp & Snow Tables by Watershed and Highway Corridor Also See All High Sierra Snowpack Data 2018 Snowpack: Percent of Average for January 31. (Change since Jan 26.) N Sierra: 29% (+2%) Cen. Sierra: 35% (+0%) S Sierra: 21% (-3%) Ca State: 30% (+0%) Last Jan 26, 2018 Statewide Summary of Snow Water Content PDF Next February 24	1 FEB Impending Storms Anticipated PM HAZARDS Donner Summit Weather Forecast Calendar MOUNTAIN Winter Storm Warning 4 PM Friday to 10 PM Mon Informative "Normal" Vs. Now Forcasts & Reality vs. Averages All High Sierra ZONE FORECASTS All High Sierra POINT FORECASTS LAST MONTH NEXT WEEK Top 2018 Snow Depths & Temps	2 Moderate Precip Virtually None in Sierra Last Night Most of these Fronts have been Moving South to North..mostly past the Sierra. HEAVY TODAY? Front approaches Sierra 10 AM PST Steady Late PM Precip All High Sierra Reporting Stations BEST FORECASTS Precipitation Quantitative Precipitation Forecasts: RAIN FORECASTS & MODELS Winds? Weather? NorCal Graphics SoCal & SW US Temperatures Model Five Day Mean Low Temps NEW Day 3-7 Forecast Minimum Temps Let's look at the Big Picture The Pacific Ocean Set this for 14 days & Display Loop Below US Weather Map All Maps LAST MONTH NEXT WEEK Top LAST MONTH NEXT WEEK Top
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
3 Steady Light-Moderate Precip: AM Steady Moderate-Heavy Precip: PM LAST WEEK NEXT WEEK Top Feb 3 Report Winter of 2018 2018 Calendar First Week Feb 2018 Snowpack: Percent of Average for February 3. (Change since Jan 31.) N Sierra: 27% (-2%) Cen. Sierra: 30% (-5%) S Sierra: 25% (+4%) Ca State: 27% (-3%) Last Jan 31, 2018 Statewide Summary of Snow Water Content PDF (2018: Drought emerging during midwinter!) 2017 Calendar First Week Feb 2017 Current Snowpack: Percent of Average for February 3. N Sierra: 145% Cen. Sierra: 174% S Sierra: 198% Ca State: 171% Statewide Summary of Snow Water Content PDF February 2016 A Very Hot Winter	4 Steady Moderate-Heavy Precip: AM Tapering-Off into PM A Very COLD & SNOWY Last Night HEAVY SNOWFALL Winter Storm Warning CALENDAR Winter Storm Warning TEXT HEAVY OVERNIGHT ACCUMULATION +3 Foot Average? All Forecasts !! ABOVE-AVERAGE SNOW 2019 Current Snowpack: Percent of Average for February 4. N Sierra: 107% +7% in 4 days!! Cen. Sierra:117% +15% in 4 days! S Sierra: 119% +22% in 4 days! Ca State: 115% +15% in 4 days! Last Reading January 31 Last Year Left Statewide Summary of Snow Water Content PDF View of Sierra on FEB 4 2017 by... MODIS SIERRA SATELLITE 2019 *HIGH SIERRA* --Winter-- 13th Temp-Snow Check Last Report: January 30th, 2019 Next Report: February 6th, 2018 Let's check our reporting station snow & temp readings aftert the last couple of days of Moderate to Heavy precip. Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs 9 AM Reading Still coming down! N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 73" +26 7618 feet (20.40 H2O) +2.8 32 & 24 -/- Echo Peak 90" +27" 7652 feet (28.80 H2O) +1.8 31 & 23 -/- American-Yuba Watersheds Carson Pass 97" +37 8388 feet (20.80" H2O) +2.5 30 & 23 +/- Carson-Walker Watersheds Ebbetts Pass 95"+29" 8660 feet (30.50" H2O) +4.1 28 & 21 -/- Leavitt Lake 143" +48 9602 feet, East Flank (29.60" H20) +2 26 & 18 -/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 57 & 31 +/- Mokelumne-Stanislaus Watersheds Deadman Creek 39.49" +23.7 9250 feet, West Flank (13.38" H20) +2.08" 24 & 16 -/- Tuolumne-Merced Watersheds Tenaya Lake 110.70" +48.51" 8163 feet, West Flank (6.11") H20 +0.0 ?? 31 & 23 -/+ Tuolumne Meadows 8600 feet, West Flank 117.70" +70.89" ?! (6.41") H20 = 0.00" ?? 31 & 19 -/+ Tioga Pass/Dana 9798 feet 93.40" +44.43 10.14" H20 (=0.00) ?? 25 & 16 -/- Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet xxx.xx" Snow bad (22.27) H2O) +5.89 ? temps bad Mammoth Pass 9500 feet 130.07" Snow +49.9 28.12" H2O +3.0 24 & 17 -/- South Lake Cabin 9580 feet, East Flank (Snow removed ") (23.30 H2O) +0.8 24 & 16 -/- Big Pine Sawmill 10200 feet, East Flank 69.00" Snow +35.1" 20 & 14 -/- Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank 95.17" Snow +44.84 32.95 H2O +3.69 21 & 14 -/- (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 81.61" +22.18" (x.xx" H2O +x.xx") 22 & 12 -/- (station reporting again!) Crabtree Meadow 10,700 feet 54.77" Snow +35.37" (9.72 H2O) +2.96 (suspect) 24 & 14 -/- All High Sierra Reporting Stations 2 Days of steady Moderate to Heavy Precip, continuing through this 9am reading,. The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks. 2018 DROUGHT CONDITIONS EMERGE IN MID-WINTER United States Drought Monitor: West High Sierra Weather Page Drought & Flood	5 Clear-Clearing COLD Hazard HAZARDS Roads Check below yesterday's temps for 2018 Drought Report !! ABOVE-AVERAGE SNOW 2019 Current Snowpack: Percent of Average for February 5 . N Sierra: 111% +4% in 1 day!! Cen. Sierra:128% +11% in 1 day!! S Sierra: 133% +14% in 1 day!! Ca State: 125% +10% in 1 day!! Last Reading January 31 Last Year Left Next Reading Feb 11 Statewide Summary of Snow Water Content PDF 2016 5 RECORD AND NEAR RECORD HIGH TEMPS Great Northeast Pacific Highs deflecting weak storms OUT OF THE SW around the Sierra. Bookends of Extremity 2015 & 2017 Driest Year in History? 2015 2015 was the driest year in my life observing the Sierra, California, Nevada, and the Southwest, and likely across all of modern history, requiring a punch deep back into Ancient history to find its equal. I had just started keeping the calendar in 2015, and did not specifically start noting the lack of snow across February, not until March, and we can see how it was ALL gone by the First of May. 2015 Earliest PCT Launch EVER Bloom was resupplying PCT hikers in May, 2015, unprecedentedly early. Extremes 2015 was an extreme example of a West Coast Drought during these drying and warming times. 2017 WETTEST YEAR LATEST PCT LAUNCH EVER The incredible dryness of 2015 was quickly followed by the deluges of 2017, which presented us with a three year streak where we recorded both the wettest and driest years in modern history within a rapid three-year succession. What does This Mean in 2019 ? These recent-past extremes are indicative of a system, more specifically, our region of the planatary weather system, that's out of, "wack." Extremes are the New Normal I'd say we are still looking at a system that will continue to produce extreme results, as the ancient balances that centered and held the range of our traditional weather patterns continue to break down from the inside-out, and the outside-in. Not only are extreme events possible, they have become likely.	6 Clear COLD Hazard Extreme Overnight Cold Temperatures LAST WEEK NEXT WEEK Top 2018 Snow Depths & Temps 2019 *HIGH SIERRA* --Winter-- 14th Temp-Snow Check Last Report: Feb 4th, 2019 Next Report: February 9, 2018 Let's check our reporting station snow & temp readings aftert the last four days of Moderate to Heavy precip. Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 83" +10 7618 feet (22.20 H2O) +1.8 20 & 13 -/- Echo Peak 105 " +15" 7652 feet (29.30 H2O) +0.5 20 & 9 -/- American-Yuba Watersheds Carson Pass 94" -3 8388 feet (20.70" H2O) -0.1 19 & 10 -/- Carson-Walker Watersheds Ebbetts Pass 104"+9" 8660 feet (32.50" H2O) +2.0 23 & 5 -/- Leavitt Lake 152" +9 9602 feet, East Flank (30.00" H20) +.4 19 & 3 -/- Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 45 & -4 -/- Mokelumne-Stanislaus Watersheds Deadman Creek 41.58" +2.09 9250 feet, West Flank (14.91" H20) +1.53" 6 & -12 -/- Tuolumne-Merced Watersheds Tenaya Lake 119.50" +8.8" 8163 feet, West Flank (6.11") H20 +0.0 ?? 30 & 21 -/- Tuolumne Meadows 8600 feet, West Flank 100.30" -17.4" ?! (6.41") H20 = 0.00" ?? 31 & -20 -/- Tioga Pass/Dana 9798 feet 100.70" +7.3 10.14" H20 (=0.00) ?? 18 & -14 -/- Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet 147.20" (23.98) H2O) +1.71 temps bad Mammoth Pass 9500 feet 145.15" Snow +15.08 28.16" H2O +0.04 21 & -6 -/- South Lake Cabin 9580 feet, East Flank (Snow removed ") (23.40 H2O) -4.76 26 & -11 +/- Big Pine Sawmill 10200 feet, East Flank 67.80" Snow -1.2" 18 & -13 -/- Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank 103.88" Snow +8.71 35.04 H2O +2.09 10 & -16 -/- (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 92.09" +10.48" (x.xx" H2O +x.xx") 15 & -9 -/- (station reporting again!) Crabtree Meadow 10,700 feet 49.74" Snow -5.03" (10.51 H2O) +0.79 (suspect) 14 & -14 -/- All High Sierra Reporting Stations 4 Days of steady Moderate to Heavy Precip, continuing through mid-day yesterday,. The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks.	7 Clouding Outer Bands of Weak Low Approaching from NW COLD Hazard THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE SIXTH* *GRAPHICS* NOAA-NOHRSC The High Sierra 2-6-19 All Snow Information All High Sierra Reporting Stations 2017 Snow & Temp Report LAST WEEK NEXT WEEK Top	8 Weak Low off SF Front Arriving PM HIGH SIERRA Winter Storm Warning Through Weekend Carson Pass Calendar Text Snow-Rain Precip Forecasts Animations, Charts, Models All High Sierra Forecast Zones All High Sierra Reporting Stations LAST WEEK NEXT WEEK Top 2017 No information about a 2017 ADZPCTKO 2017 PM: Big Tropical Flow out of SW hits the Coast of Ca. PM: Raining across Sierra Crest Most stations above freezing to 40 degrees ALL STORMS THIS SEASON HAVE COME OUT OF THE WEST & SOUTHWEST: Warm Storms... Oroville Dam Crisis News LAST WEEK NEXT WEEK Top	9 Continuing Light to Moderate Precip HIGH SIERRA Winter Storm Warning Through Weekend Calendar Text COLD Hazard HAZARDS Roads The Sierra on FEB 9 2018 by... MODIS SIERRA SAT LAST WEEK NEXT WEEK Top 2019 *HIGH SIERRA* --Winter-- 15th Temp-Snow Check Last Report: Feb 6th, 2019 Next Report: February 10, 2018 Let's check our reporting station snow & temp readings aftert the last full day of Light to Moderate precip. Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Rubicon 85" +5 7618 feet (23.20 H2O) +1.0 26 & 22 +/+ Echo Peak 105" =0" 7652 feet (32.90 H2O) +3.6 25 & 21 +/+ American-Yuba Watersheds Carson Pass 98" +4 8388 feet (23.00" H2O) +2.3 24 & 19 +/+ Carson-Walker Watersheds Ebbetts Pass 103"-1" 8660 feet (32.80" H2O) +0.3 23 & 18 =/+ Leavitt Lake 154" +2 9602 feet, East Flank (30.70" H20) +.7 18 & 16 -/+ Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 58 & -10 +/- Mokelumne-Stanislaus Watersheds Deadman Creek 35.53" -6.05 9250 feet, West Flank (15.18" H20) +0.27" 20 & 3 +/+ Tuolumne-Merced Watersheds Tenaya Lake 122.40 +2.9" 8163 feet, West Flank (6.28") H20 +0.17 ?? 29 & -13 -/- Tuolumne Meadows 8600 feet, West Flank 94.70" -5.6" (6.42") H20 +0.02" ?? 25 & -14 -/+ Tioga Pass/Dana 9798 feet 96.80" -3.9 10.16" H20 (+0.02) ?? 17 & 0 -/+ Mammoth Mountain Mono Lake-Owens Basin Gem Pass 10750 feet 151.20" +4 (24.38) H2O) +0.4 temps bad Mammoth Pass 9500 feet 144.86" Snow -0.29 28.16" H2O =0.00 24 & 3 +/+ South Lake Cabin 9580 feet, East Flank (Snow removed ") (23.70 H2O) +0.30 24 & 10 -/+ Big Pine Sawmill 10200 feet, East Flank 64.80" Snow -3" 20 & 9 +/+ Kings River Bishop Pass 11972 feet BAD- BAD Charlotte Lake 10398 feet, West Flank 99.59" Snow -4.29 35.82 H2O +0.78 16 & -2 +/+ (The coldest station) Kern Watershed Upr Tyndall Creek 11441 feet 90.59" -1.5" (x.xx" H2O +x.xx") 19 & 5 +/+ (station reporting again!) Crabtree Meadow 10,700 feet 46.39" Snow -3.35" (11.08 H2O) +0.57 (suspect) 22 & -2 +/+ All High Sierra Reporting Stations 1 Day of steady Light to Moderate Precip, continuing through this evening. The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks. 2016 Record Level Temps High Heat and Humidity... Plum and Cherry trees blossoming at Sea Level.
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
10 Clear Bits Clearing & Cloudy A Break in the Action WEAK LOW Passing to Southeast Precip Stopped or Diminishing HIGH SIERRA Winter Storm Warning RESCENDED Through Remainder of Weekend Carson Pass Calendar Text HAZARDS Roads East Sierra Winter Storm Warning Continues Bridgeport Calendar COLD Hazard 2019 FEB 10 *HIGH SIERRA* --Winter-- 16th Temp-Snow Check Last Report: Feb 9th, 2019 Next Report: February 14, 2018 Let's check our reporting station snow & temp readings aftert the last full day & a half of Light to Moderate precip. Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed PCT-TYT Rubicon 95" +10 7618 feet (24.30 H2O) +1.1 24 & 14 -/- PCT-TYT Echo Peak 119" +14" 7652 feet (35.30 H2O) +2.4 23 & 13 -/- American-Yuba Watersheds PCT-TYT Carson Pass 102" +4 8388 feet (23.9" H2O) +0.9 21 & 11 -/- Carson-Walker Watersheds PCT-TYT Ebbetts Pass 115"+12" 8660 feet (32.70" H2O) -0.1 20 & 11 -/- EAST FLANK Leavitt Lake 172" +18 9602 feet, East Flank (30.70" H20) =.0 19 & 8 -/- EAST FLANK Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 58 & -10 (same) Mokelumne-Stanislaus Watersheds PCT-TYT Kennedy Meadows RESUPPLY Deadman Creek 34.16" -1.35 (dated) 9250 feet, West Flank (15.18" H20) =0.00" 15 & 6 -/+ Tuolumne-Merced Watersheds Tenaya Lake 132.20 +9.8" 8163 feet, West Flank (6.29") H20 +0.07 ?? 28 & 16 -/+ JMT-PCT-TYT Tuolumne Meadows 8600 feet, West Flank 117.70" +23 " (6.42") H20 =0.00" ?? 26 & 12 +/+ Tioga Pass/Dana 9798 feet 104" +7.2 10.16" H20 (=0.00) ?? 17 & 6 =/+ Mammoth Mountain Mono Lake-Owens Basin Above June Lake Gem Pass 10750 feet 149.6" −1.6 (25.83) H2O) +1.45 temps bad Near JMT-PCT Mammoth Pass 9500 feet 157.66" Snow +12.8 28.16" H2O =0.00 19 & 11 -/+ East Flank South Lake Cabin 9580 feet, East Flank (Snow removed ") (23.70 H2O) =0.00 24 & 11 =/+ East Flank Big Pine Sawmill 10200 feet, East Flank 68.10" Snow +3.3" 17 & 8 -/- Kings River Just East JMT-PCT Bishop Pass 34.80 first report !! 11972 feet BAD- BAD Just West JMT-PCT Charlotte Lake 10398 feet, West Flank 107.77" Snow +8.18 36.33 H2O +0.51 15 & 7 -/+ (The coldest station) Kern Watershed JMT-PCT Upr Tyndall Creek 11441 feet 97.79" +7.2" (x.xx" H2O +x.xx") 17 & 5 -/+ (station reporting again!) JMT Crabtree Meadow 10,700 feet 49.92" Snow +3.53" (11.32 H2O) +0.24 17 & -3 -/- All High Sierra Reporting Stations 1.5 Day of steady Light to Moderate Precip, and I would not be surprised if light precip continues to this evening. The trend of mid-Winter Highs blocking precip to California has broken down over the last couple of weeks. 2018 Snow Depths & Temps	11 Clear & Cool !! ABOVE-AVERAGE SNOW 2019 Current Snowpack: Percent of Average for February 11. N Sierra: 112% +1% in 6 days!! Cen. Sierra:135% +7% in 6 days!! S Sierra: 138% +5% in 6 days!! Ca State: 129% +4% in 6 days!! Last Reading Feb 5 Compare with record year of 2017, Above & Last Year -----> Statewide Summary of Snow Water Content PDF LAST WEEK NEXT WEEK Top	12 Clouding-Up Anticipating Late PM Precip LAST WEEK NEXT WEEK Top 2018 Snow Depths & Temps 2018 Snowpack: Percent of Average for February 12. (Change since Feb 3.) N Sierra: 17% (-10%) Cen. Sierra: 24% (-7%) S Sierra: 17% (-10%) Ca State: 17% (-13%) LAST WEEK NEXT WEEK Top	13 Tropical Rains Moderate to Heavy Precip AM-PM REPORTS Some Rain Falling High-Up HAZARDS Roads Donner Summit Calendar Carson Pass Calendar About TTMs Tropical Transport Mechanisms TTM FORECASTS Seven Day TTM Landfall TPW Total Precip Water HEAVY PRECIP 2019 Current Snowpack: Percent of Average for February 13. N Sierra: 115% +3% in 2 days Cen. Sierra:134% -1% in 2 days! S Sierra: 137% -1% in 2 days Ca State: 130% +1% in 2 days Last Reading Feb 11 Compare with record year of 2017, Above <----- & Last Year Statewide Summary of Snow Water Content PDF	14 Valentine's Day Tropical Rains Moderate to Heavy Precip Rain Across Crest Snow Probabilities Snow Models THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE 14TH* *GRAPHICS* NOAA-NOHRSC The High Sierra 2-14-19 HEAVY PRECIP 2019 Current Snowpack: Percent of Average for February 14. N Sierra: 124% +9% in 1 day Cen. Sierra:139% +5% in 1 day S Sierra: 142% +5% in 1 day Ca State: 136% +6% in 1 day Last Reading Feb 13 Compare with record year of 2017, Above <----- & Last Year Statewide Summary of Snow Water Content PDF 2019 FEB 14 *HIGH SIERRA* --Winter-- 17th Temp-Snow Check Last Report: Feb 10th, 2019 Next Report: February 15, 2018 Let's check our reporting station snow & temp readings aftert the last full day of Moderate to Heavy precip. Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Southwest Tahoe Trail Map with Stations PCT-TYT Rubicon 89" -6 7618 feet Trail Map (28.10 H2O) +3.8 40 & 28 +/+ PCT-TYT Echo Peak 113" -6" 7652 feet (40.80 H2O) +5.5 40 & 27 +/+ American-Yuba Watersheds PCT-TYT Carson Pass 108" +6 8388 feet (27.30" H2O) +3.4 36 & 25 +/+ Carson-Walker Watersheds PCT-TYT Ebbetts Pass 116"+1" 8660 feet (32.70" H2O) =0.0 35 & 25 +/+ EAST FLANK Leavitt Lake 178" +2 9602 feet, East Flank (31.60" H20) +.9 35 & 22 +/+ EAST FLANK Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 60 & 36 +/+ Mokelumne-Stanislaus Watersheds PCT-TYT Kennedy Meadows RESUPPLY Deadman Creek 48.64" +14.48 9250 feet, West Flank (18.07" H20) +2.89" 33 & 16 +/+ Tuolumne-Merced Watersheds Tenaya Lake 118.80 −13.4" 8163 feet, West Flank (9.73") H20 +3.44 37 & 22 +/+ JMT-PCT-TYT Tuolumne Meadows 8600 feet, West Flank 98.60" −19.1 " (6.42") H20 =0.00" ?? 33 & 18 +/+ Tioga Pass/Dana 9798 feet 106.1" +2.1 10.18" H20 (+0.02) ?? 33 & 14 +/+ Mammoth Mountain Mono Lake-Owens Basin Above Gem Lake Gem Pass 10750 feet 150.60" +1 (30.12) H2O) +4.29 temps bad JMT PCT Junction Devils Postpile 8004 feet 98.72" (0.0) 39 & 25 / Near JMT-PCT Mammoth Pass 9500 feet 152.21" Snow -5.45 28.16" H2O =0.00 31 & 19 +/+ JMT-PCT E of Bear Ridge Volcanic Knob 10100 feet 102.6" (0.00) 30 & 17 / East Flank South Lake Cabin 9580 feet, East Flank (Snow removed ") (24.30 H2O) +0.6 36 & 19 +/+ East Flank Big Pine Sawmill 10200 feet, East Flank 74.30" Snow +6.2" 33 & 16 +/+ Kings River Just East JMT-PCT Bishop Pass --.-- first report !! 11972 feet BAD- BAD Just West JMT-PCT Charlotte Lake 10398 feet, West Flank 107.23" Snow -0.54 39.82 H2O +3.49 29 & 15 +/+ (The coldest station) Kern Watershed JMT-PCT Upr Tyndall Creek 11441 feet 96.90" −0.89" (x.xx" H2O +x.xx") 27 & 9 +/+ (station reporting again!) JMT Crabtree Meadow 10,700 feet 52.25" Snow +3.53" (14.20 H2O) +2.88 28 & 3 +/+ All High Sierra Reporting Stations One Day of steady Moderate to Heavy Precip, and I would not be surprised if light precip continues overnight this evening.	15 Tropical Rains Lite to Moderate Showers Displaced by Cooling Low from North Pushing TTM South Rain Across Crest COLD Hazard Showers Water Info 2019 Current Snowpack: Percent of Average for February 15. N Sierra: 125% +1% in 1 day Cen. Sierra:147% +8% in 1 day S Sierra: 149% +7% in 1 day Ca State: 141% +5% in 1 day Last Reading Feb 14 Next Reading Feb 19 Compare with record year of 2017, Above <----- & Last Year Statewide Summary of Snow Water Content PDF 2019 FEB 15 *HIGH SIERRA* --Winter-- 18th Temp-Snow Check Last Report: Feb 14th, 2019 Next Report: February 18, 2018 Let's check our reporting station snow & temp readings aftert the last full day of Moderate to Shower-ing precip. Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Southwest Tahoe Trail Map with Stations PCT-TYT Rubicon 102" +13 7618 feet Trail Map (27.90 H2O) -0.2 40 & 19 =/- PCT-TYT Echo Peak 129" +16" 7652 feet Stations Map (40.70 H2O) -0.1 27 & 19 -/- American-Yuba Watersheds PCT-TYT Carson Pass 117" +9 8388 feet (27.20" H2O) -0.1 25 & 18 -/- Carson-Walker Watersheds PCT-TYT Ebbetts Pass 129"+13" 8660 feet (32.30" H2O) -0.4 25 & 17 -/- EAST FLANK Leavitt Lake 193" +15 9602 feet, East Flank (31.60" H20) =.0 35 & 15 =/- EAST FLANK Marine Base 6748 feet East Flank FULL REPORT VIS-CHIL-WEA-MB- WIND 52 & 30 -/- Mokelumne-Stanislaus Watersheds PCT-TYT Kennedy Meadows RESUPPLY Deadman Creek 40.05" -8.59 ?? 9250 feet, West Flank (18.13" H20) +0.06" 17 & 11 -/- Tuolumne-Merced Watersheds Tenaya Lake 126.40 +7.6" 8163 feet, West Flank (9.73") H20 =0.00 37 & 17 =/- JMT-PCT-TYT Tuolumne Meadows 8600 feet, West Flank 101.6" +3 " (6.42") H20 =0.00" ?? 21 & 13 -/- Tioga Pass/Dana 9798 feet 112" +5.9 10.18" H20 (=0.0) ?? 30 & 9 -/- Mammoth Mountain Mono Lake-Owens Basin Above Gem Lake Gem Pass 10750 feet 150.2" -.4 (31.05 H2O) +0.93 temps bad JMT PCT Junction Devils Postpile 8004 feet 111.70" +12.98 (0.0) = 26 & 19 -/- Near JMT-PCT Mammoth Pass 9500 feet 170.96" Snow +18.75 28.16" H2O =0.00 19 & 12 -/- JMT-PCT E of Bear Ridge Volcanic Knob 10100 feet 106.40" +3.8 (0.00) 21 & 11 -/- East Flank South Lake Cabin 9580 feet, East Flank (Snow removed ") (24.30 H2O) =0.0 20 & 12 -/- East Flank Big Pine Sawmill 10200 feet, East Flank 77.70" Snow +3.4" 17 & 10 -/- Kings River Just East JMT-PCT Bishop Pass --.-- !! 11972 feet BAD- BAD Just West JMT-PCT Charlotte Lake 10398 feet, West Flank 113.66" Snow +6.43 40.18 H2O +0.36 17 & 9 -/- (The coldest station) Kern Watershed JMT-PCT Upr Tyndall Creek 11441 feet 107.25" +10.35" (x.xx" H2O +x.xx") 16 & 7 -/- (station reporting again!) JMT Crabtree Meadow 10,700 feet 52.54" Snow +0.29" (14.40 H2O) +0.2 18 & 1 -/- All High Sierra Reporting Stations One Day of steady Moderate to Heavy Precip, and I would not be surprised if showers of light precip continues overnight again this evening. 2017 Snow & Temp Report	16 Cold Showers Out of NW COLD Hazard Showers HIGH SIERRA Winter Storm Warning Through Remainder of Tonight Carson Pass Forecast Calendar Donner Summit Weather Forecast Calendar Text Watch It! California Web Cams HAZARDS Roads All Snow Information All High Sierra Reporting Stations LAST WEEK NEXT WEEK Top BEST FORECASTS Precipitation Quantitative Precipitation Forecasts: RAIN FORECASTS & MODELS Winds? Weather? NorCal Graphics SoCal & SW US Temperatures Model Five Day Mean Low Temps NEW Day 3-7 Forecast Minimum Temps Let's look at the Big Picture The Pacific Ocean Set this for 14 days & Display Loop Below US Weather Map All Maps Selected Weather Resources Surface Low Pressure Tracks Radar Visible Satellites Water Vapor Satellites MAPS Sierra Forecasts Western US Forecasts Precip Animation & Charts Graphical Precip Forecast All Sierra Snow Info Sierra Sensor Networks Watersheds and Selected Network of Crestline Sensors High Sierra Highways All Weather Information 2015 CHANGE POINT LAST WEEK NEXT WEEK Top CCC Backcountry Trail Crew APPLICATIONS DUE LAST WEEK NEXT WEEK Top
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
17 Cold Showers Out of NW Clearing COLD Hazard LAST WEEK NEXT WEEK Top Selected Weather Resources Surface Low Pressure Tracks Radar Visible Satellites Water Vapor Satellites MAPS Sierra Forecasts Western US Forecasts Precip Animation & Charts Graphical Precip Forecast All Sierra Snow Info Sierra Sensor Networks Watersheds and Selected Network of Crestline Sensors High Sierra Highways All Weather Information	18 Clear & Crisp PRESIDENT'S DAY COLD Hazard HAZARDS Roads Watch It! California Web Cams 2019 FEB 18 *HIGH SIERRA* --Winter-- 19th Temp-Snow Check Last Report: Feb 15th, 2019 Next Report: February 24, 2018 Let's check our reporting station snow & temp readings aftert the previous four days bringing everything from Heavy downpours to light showers. Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Southwest Tahoe Trail Map with Stations PCT-TYT Rubicon 106" +4 7618 feet Trail Map (27.70 H2O) -0.2 22 & 13 -/- PCT-TYT Echo Peak 142" +13" 7652 feet Stations Map (41.50 H2O) +0.8 24 & 12 -/- American-Yuba Watersheds PCT-TYT Carson Pass 113" -4 (error??) 8388 feet Trail Map Stations Map (27.10" H2O) -0.1 24 & 8 -/- Carson-Walker Watersheds PCT-TYT Ebbetts Pass 131" +2 8660 feet Trail Map (36.90" H2O) +4.6 20 & 9 -/- EAST FLANK Leavitt Lake 186" -7 9602 feet, East Flank Trail Map (31.70" H20) +.1 13 & 4 -/- EAST FLANK Marine Base Cold Weather Training 6748 feet East Flank Trail Map Above FULL REPORT VIS-CHIL-WEA-MB- WIND 59 & 18 +/- Mokelumne-Stanislaus Watersheds PCT-TYT Sonora Pass Kennedy Meadows RESUPPLY Deadman Creek 48.37" +8.32 (ERROR-Corrected) 9250 feet,West Flank, Trail Map (18.56" H20) +0.43" 8 & 3 -/- Tuolumne-Merced Watersheds Tenaya Lake 119.50 -6.9" 8163 feet, West Flank Trail Map (9.73") H20 =0.00 22 & -5 -/- JMT-PCT-TYT Tuolumne Meadows 100" -1.6" 8600 feet, West Flank Trail Map (6.42") H20 =0.00" ?? 26 & -15 +/- Tioga Pass/Dana 105.3" -6.7 9798 feet Trail Map 10.18" H20 (=0.0) ?? 15 & -6 -/- Mammoth Mountain Mono Lake-Owens Basin East of PCT-JMT Above Gem Lake Gem Pass 148" -2.2 10750 feet Trail Map (30.72 H2O) -0.33 temps bad JMT-PCT Junction Devils Postpile 109.16" −2.54 8004 feet Trail Map Above (0.0) = 19 & 3 -/- NE of JMT-PCT Mammoth Pass 167.15" Snow -3.81 9500 feet Trail Map 28.16" H2O =0.00 26 & 4 +/- JMT-PCT E of Bear Ridge Volcanic Knob 109" +2.6 10100 feet Trail Map (0.00) 19 & -9 -/- East Flank South Lake Cabin (Snow removed ") 9580 feet, East Flank Trail Map (24.10 H2O) +0.1 25 & -6 +/- East Flank Big Pine Sawmill 70.80" Snow −6.9" 10200 feet, East Flank Trail Map Above 14 & -9 -/- Kings River Just East JMT-PCT Bishop Pass --.-- !! 11972 feet Trail Map Above BAD- BAD Just West JMT-PCT Charlotte Lake 100.33" Snow -13.33 10398 feet, West Flank Trail Map 40.82 H2O +0.64 12 & -12 -/- (The coldest station) Kern Watershed JMT-PCT Upr Tyndall Creek 103.52" -3.73" 11441 feet Trail Map (x.xx" H2O +x.xx") 13 & -8 -/- JMT Crabtree Meadow 50.17" Snow -2.37" 10,700 feet Trail Map (14.50 H2O) +0.1 11 & -11 -/- All High Sierra Reporting Stations Clarity today, and half of yesterday, after four days of various degrees of precip. 2018 Snow Depths & Temps 2017 Snow & Temp Report 2016 RECORD, or NEAR RECORD HOT TEMPERTURES. Heat continues since the beginning of the month.	19 Clear & Crisp Burrrr COLD Hazard PM High Cloud Warming 2019 Current Snowpack: Percent of Average for February 19. N Sierra: 127% +2% in 4 days Cen. Sierra:154% +7% in 4 days S Sierra: 152% +3% in 4 days Ca State: 146% +5% in 4 days Last Reading Feb 15 Compare with record year of 2017, Above & Last Year Statewide Summary of Snow Water Content PDF 2017 Yosemite Natural Firefall History of,... History Tourist Fire Version	20 High Clouds & High Haze Burrrr COLD Hazard High Cloud Warming THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE 20TH* NOAA-NOHRSC SNOWPACK The High Sierra 2-20-19 2018 Snow Depths & Temps LAST WEEK NEXT WEEK Top	21 Clear-Clearing & Crisp Informative "Normal" Vs. Now Forcasts & Reality vs. Averages eulogy ADZPCTKO All Snow Information All High Sierra Reporting Stations 2017 Calendar: The 18th News of Note Feb 2017: Record Precip Record Snopack State fully saturated Oroville Dam Crisis Feb 2016 Hot & Dry LAST WEEK NEXT WEEK Top	22 Clear & Crisp Burrrr COLD Hazard Updated ! Desolation Snow Deep Snow in the Mountains, Spring on the Horizon... I'm Pumped. Am I ready? I Want Skittles! Navigation & Snow 2018 Snow Depths & Temps BEST FORECASTS Precipitation Quantitative Precipitation Forecasts: RAIN FORECASTS & MODELS Winds? Weather? NorCal Graphics SoCal & SW US Temperatures Model Five Day Mean Low Temps Click Green "Latest" Model NEW Day 3-7 Forecast Minimum Temps Min & Max Daily Temperatures All Temps Let's look at the Big Picture The Pacific Ocean Set this for 14 days & Display Loop Below US Weather Map All Maps	23 High Clouds & High Haze LAST WEEK NEXT WEEK Top 2018 Snow Depths & Temps 2016 Carson Pass 53 & 28 degrees 26 inches Ebbetts Pass 54 & 33 degrees 63 inches Sonora Pass 53 & 27 degrees 55 inches Tuolumne Meadows 55 & 14 degrees 51 inches LAST WEEK NEXT WEEK Top LAST WEEK NEXT WEEK Top
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
24 Lowering Clouds & Haze Best Monthly Analysis 2019 FEB 24 *HIGH SIERRA* --Winter-- 20th Temp-Snow Check Last Report: Feb 18th, 2019 Next Report: February 27, 2018 Let's check our reporting station snow & temp readings aftert the previous five days bringing clarity (cold temps), and clouds (dry-bit warmer), out of the Northwest. This is different than the TTMs out of the Southwest, that preceeded the shift to the NW... Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Southwest Tahoe Trail Map with Stations PCT-TYT Rubicon 91" -15 7618 feet Trail Map (27.40 H2O) -0.3 32 & 17 +/+ PCT-TYT Echo Peak 123" -19" 7652 feet Stations Map (41.80 H2O) +0.3 31 & 17 +/+ American-Yuba Watersheds PCT-TYT Carson Pass 102" -11 (error??) 8388 feet Trail Map Stations Map (27.10" H2O) =0.0 33 & 22 +/+ Carson-Walker Watersheds PCT-TYT Ebbetts Pass 118" -13 8660 feet Trail Map (37.00" H2O) +0.1 33 & 22 +/+ EAST FLANK Leavitt Lake 173" -13 9602 feet, East Flank Trail Map (44.8" H20) +13.1 ?? 25 & 20 +/+ EAST FLANK Marine Base Cold Weather Training 6748 feet East Flank Trail Map Above FULL REPORT VIS-CHIL-WEA-MB- WIND 59 & -6 =/- ?? Mokelumne-Stanislaus Watersheds PCT-TYT Sonora Pass Kennedy Meadows RESUPPLY Deadman Creek 48.02" -0.17 ?? (ERROR-Corrected ??) 9250 feet,West Flank, Trail Map (20.20" H20) +1.64" 26 & 18 +/+ Tuolumne-Merced Watersheds Tenaya Lake 106.60 −12.9" 8163 feet, West Flank Trail Map (10.58") H20 +0.85 38 & 21 +/+ JMT-PCT-TYT Tuolumne Meadows 90" -10" 8600 feet, West Flank Trail Map (6.42") H20 =0.00" ?? 36 & 16 +/+ Tioga Pass/Dana 94.10" −11.2 9798 feet Trail Map 10.19" H20 (+0.01) 28 & 16 +/+ Mammoth Mountain Mono Lake-Owens Basin East of PCT-JMT Above Gem Lake Gem Pass 151.10" -2.2 10750 feet Trail Map (30.72 H2O) +3.1 temps bad JMT-PCT Junction Devils Postpile 97.64" −11.52 8004 feet Trail Map Above (0.0) = 37 & 13 +/+ NE of JMT-PCT Mammoth Pass 151.55" Snow −15.6 9500 feet Trail Map 28.16" H2O =0.00 35 & 15 +/+ JMT-PCT E of Bear Ridge Volcanic Knob 96.10" −12.9 10100 feet Trail Map (0.00) 35 & 11 +/+ East Flank South Lake Cabin (Snow removed ") 9580 feet, East Flank Trail Map (24.40 H2O) +0.3 40 & 12 +/+ East Flank Big Pine Sawmill 66.30" Snow −4.5" 10200 feet, East Flank Trail Map Above 31 &9 +/+ Kings River Just East JMT-PCT Bishop Pass --.-- 11972 feet Trail Map Above BAD- BAD Just West JMT-PCT Charlotte Lake 96.82" Snow −3.51 10398 feet, West Flank Trail Map 40.90 H2O +0.08 28 & 6 +/+ (The coldest station) Kern Watershed JMT-PCT Upr Tyndall Creek 96.39" −7.13" 11441 feet Trail Map (x.xx" H2O +x.xx") 32 & 13 +/+ JMT Crabtree Meadow 45.22" Snow −4.95" 10,700 feet Trail Map (14.69 H2O) +0.19 32 & 8 +/+ All High Sierra Reporting Stations Thickening clouds today, and yesterday, after three days of various degrees of cold clarity.	25 Precip Approaches PM PRECIP TTM out of SW Carson Pass Winter Storm Warning HAZARDS Roads 2019 Current Snowpack: Percent of Average for February 25. N Sierra: 127% =0% in 6 days Cen. Sierra:154% -6% in 6 days S Sierra: 144% -8% in 6 days Ca State: 146% -5% in 6 days Last Reading Feb 19 Compare with record year of 2017, Above & Last Year Statewide Summary of Snow Water Content PDF LAST WEEK NEXT MONTH Top 2018 Snow Depths & Temps 2018 Snowpack: Percent of Average for February 22. (Change since Feb 12.) N Sierra: 17% (=) Cen. Sierra: 23% (-1%) S Sierra: 19% (+2%) Ca State: 19% (+2%)	26 Light to Heavy Precip TTM out of SW Forecast Tools Russian River Flooding High Sierra Avalanche Center Tahoe Region Central Sierra East Sierra THE CURRENT SNOWPACK *GRAPHICS* Date-Adjustable Multi-Aspect High Sierra Snowpack Status *THE 24TH* NOAA-NOHRSC SNOWPACK The High Sierra 2-24-19 All Snow Information All High Sierra Reporting Stations There is a vast storm off the North Coast of Australia, (in the Southern Hemisphere!) that's totally suppressing Westward movement of heat along the Equatorial Band far to the East of Indonesia, which is helping to clog-up, and feed vast amounts of tropical moisture splitting-off up to the Northwest, from Southwest of Hawaii. This map, when viewed today, shows this vast storm: Note the Vast Low, off the coast of Australia. That's blocking and feeding the storrm activity we see, the TTM, that's flowing North-West from the Equatorial region hitting us today... If you look at this, today, you will see that it is nothing short of amazing that the low off Aus is feeding Tropical downpours here! Fucking A ! 2018 Snow Depths & Temps	27 Diminishing Precip Note N Sierra Focus 2019 Current Snowpack: Percent of Average for February 25. N Sierra: 147% +20% in 2 days Cen. Sierra:154% +0% in 2 days S Sierra: 146% +2% in 2 days Ca State: 151% +5% in 2 days Last Reading Feb 25 Compare with record year of 2017, Above & Last Year Statewide Summary of Snow Water Content PDF 2019 FEB 27 *HIGH SIERRA* --Winter-- 21st Temp-Snow Check Last Report: Feb 24th, 2019 Next Report: February ?, 2018 Let's check our reporting station snow & temp readings aftert the previous two days bringing a Tropical Transport Mechanism out of the Southwest. This is different than the last storms out of the Northwest, that preceeded this shift to the SW... Click the stations below for the latest reports. Below: Watershed Snow Water Content Charts followed by individual reporting station's Snow Depth and 24 hour high-low temps. A NEW WATER YEAR: LAST YEAR Total Precipitation 58 % of Average A NEW WATER YEAR: Reservoirs N Sierra Reporting Stations On a Map Scroll over stations for snow & temps. Click for full report. South Sierra Stations "+/- & =" below are changes since last reading. Tahoe Basin Watershed Southwest Tahoe Trail Map with Stations PCT-TYT Rubicon 106" +15 7618 feet Trail Map (27.80 H2O) +0.4 36 & 30 +/+ PCT-TYT Echo Peak 134" +11" 7652 feet Stations Map (49.50 H2O) +7.7 ?? 35 & 29 +/+ American-Yuba Watersheds PCT-TYT Carson Pass 117" +15 (error??) 8388 feet Trail Map Stations Map (27.50" H2O) +0.4 35 & 27 +/+ Carson-Walker Watersheds PCT-TYT Ebbetts Pass 119" +1 8660 feet Trail Map (37.30" H2O) +0.3 33 & 26 =/+ EAST FLANK Leavitt Lake 182" +9 9602 feet, East Flank Trail Map (49.2" H20) +4.6 ?? 25 & 31 =/+ EAST FLANK Marine Base Cold Weather Training 6748 feet East Flank Trail Map Above FULL REPORT VIS-CHIL-WEA-MB- WIND 59 & 36 =/+ Mokelumne-Stanislaus Watersheds PCT-TYT Sonora Pass Kennedy Meadows RESUPPLY Deadman Creek 45.47" -2.55 9250 feet,West Flank, Trail Map (20.66" H20) +0.66" 30 & 23 +/+ Tuolumne-Merced Watersheds Tenaya Lake 111.40 +4.8" 8163 feet, West Flank Trail Map (11.06") H20 +0.48 36 & 26 -/+ JMT-PCT-TYT Tuolumne Meadows 90.3" +0.3 " 8600 feet, West Flank Trail Map (6.43") H20 + 0.01" 40 & 24 +/+ Tioga Pass/Dana 100" +5.9 9798 feet Trail Map 10.19" H20 (=0.0) 35 & 22 +/+ Mammoth Mountain Mono Lake-Owens Basin East of PCT-JMT Above Gem Lake Gem Pass 152.40" +1.3 10750 feet Trail Map (31.32 H2O) +0.6 temps bad JMT-PCT Junction Devils Postpile 100.46" +2.82 8004 feet Trail Map Above (0.0) = 38 & 27 +/+ NE of JMT-PCT Mammoth Pass 155.27" Snow +3.72 9500 feet Trail Map 28.16" H2O =0.00 32 & 21 -/+ JMT-PCT E of Bear Ridge Volcanic Knob 97.10" +1 10100 feet Trail Map (0.00) 38 & 20 +/+ East Flank South Lake Cabin (Snow removed ") 9580 feet, East Flank Trail Map (24.50 H2O) +0.1 38 & 21 -/+ East Flank Big Pine Sawmill 65.40" Snow −0.9" 10200 feet, East Flank Trail Map Above 34 & 18 +/+ Kings River Just East JMT-PCT Bishop Pass --.-- 11972 feet Trail Map Above BAD- BAD Just West JMT-PCT Charlotte Lake 99.67" Snow +2.85 10398 feet, West Flank Trail Map 41.65 H2O +0.75 32 & 19 +/+ (The coldest station) Kern Watershed JMT-PCT Upr Tyndall Creek 96.95" +0.56" 11441 feet Trail Map (x.xx" H2O +x.xx") 32 & 20 =/+ JMT Crabtree Meadow 45.31" Snow +0.09" 10,700 feet Trail Map (15.30 H2O) +0.61 35 & 19 +/+ All High Sierra Reporting Stations Diminishing Precip , after two days of various degrees of tropical intensity.	28 Broken Clouds to Clear More Tropical Weather Approaches Selected Weather Resources Surface Low Pressure Tracks Radar Visible Satellites Water Vapor Satellites MAPS Sierra Forecasts Western US Forecasts Precip Animation & Charts Graphical Precip Forecast All Sierra Snow Info Sierra Sensor Networks Watersheds and Selected Network of Crestline Sensors High Sierra Highways All Weather Information 2018 Snow Depths & Temps LAST WEEK NEXT MONTH Top	1 March Thickening Clouds PM Precip Expected 2019 Current Snowpack: Percent of Average for March 1. N Sierra: 152% +5% in 2 days Cen. Sierra:156% +2% in 2 days S Sierra: 147% +1% in 2 days Ca State: 153% +2% in 2 days Last Reading Feb 27 Compare with record year of 2017, Above & Last Year Statewide Summary of Snow Water Content PDF BEST FORECASTS Precipitation Quantitative Precipitation Forecasts: RAIN FORECASTS & MODELS Winds? Weather? NorCal Graphics SoCal & SW US Temperatures Model Five Day Mean Low Temps Click Green "Latest" Model NEW Day 3-7 Forecast Minimum Temps Min & Max Daily Temperatures All Temps Let's look at the Big Picture The Pacific Ocean Set this for 14 days & Display Loop Below US Weather Map All Maps 2018 Snow Depths & Temps 2018 Snowpack: Percent of Average for March 1. (Change since Feb 24.) N Sierra: 20% (+3%) Cen. Sierra: 27% (+4%) S Sierra: 22% (+3%) Ca State: 24% (+5%) Last Feb 24, 2018 Statewide Summary of Snow Water Content PDF 2017 Snow Depths & Temps 2017 Current Snowpack: Percent of Average for March 1. N Sierra: 159% Cen. Sierra: 191% S Sierra: 201% Ca State: 185% Statewide Summary of Snow Water Content PDF Last Reading: February 3 February of 2016	2 March Updated ! Desolation Snow Deep Snow in the Mountains, Spring on the Horizon... I'm Pumped. Am I ready? I Want Skittles! Navigation & Snow LAST WEEK NEXT MONTH Top LAST WEEK NEXT MONTH Top LAST WEEK NEXT MONTH Top
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I am hoping my frostbite/heart is recovered enough to resume my annual Christmas-New Year Snow Camping Triangle at the end of 2016.

From Meyers to Round Lake to Showers Lake to Round Top Lake and back to Meyers is my traditional December 25 Christmas present to myself.

The terrain, the joy of navigation and route finding the snow-covered beauty of the High Sierra during Winter is a special experience well worth the efforts and hazards.

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Important Seasonal Happenings, Transitions, Events, & Dates for High Sierra Backpackers