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JULY 2019
Backpackers
Shift to Summer Gear well under way. Be ready for last bursts of Spring Weather.
Ignore the Calendar.
Gear up for the Conditions on the Ground, not a Date on the Calendar.
High Sierra Backpacker Weather
ON THE TRAIL
2019 REPORTS
Chaos on the Crest
2018 REPORTS
Trails Open on the Crest
2017 REPORTS
Chaos on the Crest
2015 REPORTS
July 2015
Current chances of experiencing
SEVERE WEATHER are INCREASED.
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CalTrans
2019
Heavy Spring Snowpack Persisting into Summer
2019
FORDING
HAZARDS
Starting June 7, persisting through July 25th, when the flow moderated a bit.
2018
Snowpack
(June 14-snow about gone)
2017
Snowpack
(extensive at this time)
2015
Snowpack
(nothing at this time) |
1
July 2015
Driest Year in History
July 2016
An Average-Dry Year
July 2017
Wettest Year in History
|
2
2019
Current Snowpack:
Percent of Average for
July 2.
N Sierra: 108%
+28% in 5 days
Cen. Sierra: 73%
−18% in 5 days
S Sierra: 27%
−32% in 5 days
Ca State: 71%
−9% in 5 days
2019
2017
WARNINGS
through
Fourth of July
Through the Month of July
Fording Hazard
Snow travel Hazard
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Modis Satellite
Views
Compare
2015, 17, 18, & 19
Current Sat Views
2019
Rivers Fierce
HEAVY FLOWS
|
6
TRANSPO
Most 2017
Trans-Sierra Highways & Road NEWS
Very Late Openings
High Points:
June 21
Bishop Creek Shuttle runs
June 21
Lakes Basin Road open, Mammoth
June 28
Road to Spicer Open
Reds Road Closed
June 29
Tioga Pass Opens
June 30
Ebbetts Pass Opens
High Sierra Transportation Resources
|
7
2018
HEATWAVE
WEATHER
HAZARD
WARNING
&
RELATED DANGER
HAZARD
BEWARE THE
GREEN WATER
Blue-Green Algae
Safety Hazard
&
RELATED DANGER
HAZARD
BEWARE
FIRE & SMOKE
Scorcing the Planet
Four Articles: LA & the Whole World Frying
Eyes on the Skies!
2018 |
8
2019
Current Snowpack:
Percent of Average for
July 8.
N Sierra: 176%
+68% in 6 days
Cen. Sierra: 0%
−73% in 6 days
S Sierra: 0%
−27% in 6 days
Ca State: 33%
−38% in 6 days
Last Reading
July 2
Next Reading
July ?
Statewide Summary of Snow Water Content PDF
2017
WARNINGS
through
Mid-July
Heat Hazard
Fording Hazard
Snow travel Hazard
Current Backpacker Alert
Current Mountain Safety New
2017
Snowpack & Temps
|
9
THE
CURRENT SNOWPACK
Current Conditions
All Snow Information
GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack Status
THE 7th
NOAA-NOHRSC
SNOWPACK
The High Sierra
7-7-19
This Week
TOP |
10
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2017
Heavy snow at high altitudes preserves the
SNOW TRAVEL HAZARD,
but now mostly limited to higher up the flanks & crest.
Continuing high runoff flows maintain the
FORDING HAZARD.
HOT TEMPS PERSIST,
and must be monitored.
FIRE & SMOKE
hazards are present & increasing.
MOSQUITOES are a THREAT.
Water & Snow Hazards are gradually narrowing as this unique season progresses, while Heat, Fire, and Skeeter threats are rapidly rising.
2017
George & Sue
Married
2015
HAPPY ANNEVERSARY!
Ceremony at Burst Rock in Emigrant Wilderness, followed by a backpacking honeymoon into the Emigrant Backcountry.
And Tahoe afterwards... |
Sunday |
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MOSQUITOES
Mosquitoes rise when the snows melt.
Mosquitoes are typically THICK right now.
A dry year? Then less skeeters. A wet year? Then more.
2015 was a good model for dry years, being the driest on record.
2017 provides a good model for wet years, as it recorded the most snow ever measured.
2015 Calendar
2017 Calendar
2018
has come in at roughly 50% of a "normal" Winter's average snowpack, putting us smack-dab in the middle, between the extremes of
2015 & 2017
An Extremely Dry Year
2015 REPORTS:
Skeeters are thin. Early for thin... |
13
2019
Still
LOTS of SNOW
at
High Elevations and Protected NE Facing Aspects
|
14
2019
FORDING
HAZARDS
continue
Rivers Moderating
MODERATE FLOWS
Nonetheless...
HAZARDS
Fording Hazard
Diminishing Soon
Snow Travel Hazard
Snow Breaking Down
Very
Dangerous Fording
June 7 through July 14
2017
Heat Advisories.
Warm to Hot.
2016
Beautiful weather in the Sierra. Warm to Hot.
2015 REPORTS:
Remnants of Baja Ca Hurricane drawn North into LA, South Deserts, and bringing more tropical storms to Sierra Nevada:
LA Floods
Hwy 10 Closed by Flash Flood
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16
2018
FERGUSON FIRE
Yosemite Foothills
2015 REPORTS:
It has been a "Tropical Summer," so far. This trend began in mid-May. |
17
2017
Snowpack & Temps
2017
Heavy snow at high altitudes preserves the:
SNOW TRAVEL HAZARD,
but now mostly limited to higher up the flanks & crest.
Still lots of snow on parts of Sierra Crest, less on others. |
18
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2017
FULL SMOKE-FIRE ALERT
Detwiler Fire
Smoke inundates Tahoe-Carson-Reno areas, (alert)
All backpackers and visitors to the Sierra should check smoke and fire conditions. Smoke can be a real problem, even with no fire in near proximity.
Fire & Smoke
CalFire (all)
Inciweb Fed
Smoke
All Recent Trail News
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20
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21
2017
Heat Hazard Rising
Heat Warnings in effect this weekend
Fire Hazard
Smoke Hazard
Fording Hazard
Snow Travel Hazard
(High Elevations)
See
Exact Line of High Sierra Snow Cover |
22
2017
Snow & Temps
This Week
TOP |
23
THE
CURRENT SNOWPACK
Current Conditions
All Snow Information
GRAPHICS
Date-Adjustable Multi-Aspect
High Sierra
Snowpack Status
THE 23rd
NOAA-NOHRSC
SNOWPACK
The High Sierra
7-23-19 |
24
2019
Carson Pass
Ebbetts Pass
Lake Alpine
Not Cold!!
PCT hikers at both Passes report thinning snow across Southern Sierra High passes, (virtually none on North Sierra North of Leavitt Peak), diminishishing rivers & streams, and heavy mosquitoes.
Extensive Snow remaining on NE facing aspects.
Major Rivers are flowing deeply, but slowly.
2019
2018
FIRE-SMOKE-HEAT
-WARNINGS-
Until Further Notice
Yosemite Valley & Wawona to be Closed to Public
from 25th to 29th
FERGUSON FIRE
Yosemite Foothills |
25
2019
Rivers Moderating
MODERATE FLOWS
Nonetheless...
FORDING
HAZARDS
continue
HAZARDS
Fording Hazard
Diminishing Soon
Snow Travel Hazard
Snow Breaking Down
2018
Yosemite Valley Closed
July 24 to August 14
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2018
Yosemite Valley Closed
July 24 to August 14
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2018
CARR & CRANSTON FIRES,
Socal (Scroll Down...)
2017
Detwiler Fire being brought under control, Tahoe Basin Fire Resrtictions.
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SPRING THAW
RIVER INFORMATION
RESERVOIRS
Watersheds and Selected Network of Crestline Sensors
2017
Snow & Temps
2015
Rocky Fire Fact Sheet (June 29) |
30
2018
FIRE-SMOKE-HEAT
-WARNINGS-
Until Further Notice
Yosemite Valley Closed
FERGUSON-CARR-CRANSTON FIRES NEWS & INFORMATION
2017
Heat Hazard Rising
Heat Warnings in effect this week, building to Thursday peak.
Fire Hazard
Smoke Hazard
Fording Hazard
Snow Travel Hazard
(High Elevations)
See
Exact Line of High Sierra Snow Cover
This Week
TOP |
31
2017
Safety News
Fording Fatality on PCT.
2017
Trail News
July 31, 2017.
2017
Heavy snow at high altitudes preserves the:
SNOW TRAVEL HAZARD,
but now mostly limited to higher up the flanks & crest.
Still lots of snow on parts of Sierra Crest, less on others.
High Altitude Trips are STILL SNOW TRIPS
Date-Adjustable High Sierra Snowpack Status
Amazing Sat Views
Continuing high runoff flows maintain the
FORDING HAZARD.
HOT TEMPS PERSIST,
and must be monitored.
FIRE & SMOKE
hazards are present & increasing.
MOSQUITOES are a THREAT.
Water & Snow Hazards are gradually narrowing as this unique season progresses, while Heat, Fire, and Skeeter threats are rapidly rising.
2015
Rough Fire
2015 |
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