You are hereStatus & Evolution of the High Sierra Spring Thaw of 2019

Status & Evolution of the High Sierra Spring Thaw of 2019


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By Alex Wierbinski - Posted on 07 July 2019

High Sierra Spring of 2019
Evolution of Conditions

Page Started
March 30, 2019

Updated
July 7, 2019

 

2019
SNOW PACK STATUS
THIS YEAR

A Heavy Snow Year

July 5 2019
A Month of Warm-"Temperate" Temps with Rapid & Slow periods of Thawing.
Heavy Spring Snowpack Persisting into Summer: Extra Caution, Information, Skills, Fitnesss and Proper Gear still REQUIRED.
71% of Average Snowpack
Calendar

June 17 2019
Two Weeks of Warm Temps & Rapid Thawing
120% of Average Snowpack
Calendar

June 11 2019
Second Day of Heat Wave
Highways 4 and 108 OPEN
Highway 120       CLOSED
175% of Average Snowpack
Calendar

June 3 2019
Diminishing Light Precip Ending this Week?
Highways 4 and 108 OPEN
Highway 120            CLOSED
201% of Average Snowpack
Calendar

May 28 2019
Diminishing Light Precip Expected this Week
191% of Average Snowpack
Calendar

May 24 2019
Light Precip Expected
164% of Average Snowpack
Calendar

May 16 2019
Moderate Precip Falling
123% of Average Snowpack
Calendar

 

May 1 2019
143% of Average Snowpack
Calendar

 

Middle of APRIL 2019
161% of Average Snowpack
Calendar

End of MARCH 2019
161% of Average Snowpack

Calendar

TRENDS

 

 

Recent High Sierra Hazard History

Last Year
THE 2018 SEASON
A Weak Snowpack Year

58% Season-Normal Snowpack TOTAL

SPRING 2018 HAZARD STATUS

2018 WINTER REVIEW
Setting the Scene for the Spring of 2018

 

MAY 1
SNOW PACK STATUS
The Previous Four Years

MAY 1 STATUS 2018
27% of Average Snowpack

Calendar

THE 2017 SEASON
A Record Heavy Snowpack Year
It was Epic
Very Much Like This Year:

Spring 2017 BACKPACKER ALERT from April 1 to August 22

MAY 1 STATUS 2017
194% of Average Snowpack

Calendar

 

MAY 1 STATUS 2016
55% of Average Snowpack

Calendar

 

MAY 1 STATUS 2015
2% of Average Snowpack

Calendar

 

HIGH SIERRA CONDITIONS 

 SPRING of 2019

Tracking
Trans-Sierra Highways

All Road Reports

July 5
Highway 4,   Ebbetts Pass:   Open June 3
Highway 108, Sonora Pass: Open June 3
Highway 120:  Tioga Pass:   Fully Open July 1

Highway 120:  Tioga Pass: Limited Opening June 21

June 3
Highway 4,   Ebbetts Pass:   Open
Highway 108, Sonora Pass: Open
Highway 120:  Tioga Pass:   Closed

 

May 24
4 the Same:      Open to Lake Alpine
108 the Same:  Open to Kennedy Meadows
120 the Same:  Crane Flat

May 8 Report

 

Lengthening Days

June 1 Day Length 14:43:02, +1:06 per day
June News.

May 12 Day length 14:12:41, +1:54 per Day,
Time & Date.

All Time Resources
,
Trail Guide, Navigation.

 

SEVENTH REPORT
JULY 7

High Sierra Backpacker
HAZARD WARNINGS

Extensive Snow along Sierra Crest
A close examination of the MODIS Sat in conjuction & comparison with the route of the PCT-TYT & JMT on maps from our Tahoe to Whitney Trail Guide, using Google Earth to identify features, to determine how much of the crestline trails between Tahoe and Whitney are still under snow.

The MODIS Sat reveals extensive snows still covering most of the high points and passes along the routes of the PCT & JMT along the Sierra Crest from the approaches under Forester Pass, to the sketchy flanks of Reynolds and Raymond Peaks just North of Ebbetts Pass. North of Sonora Pass things begin to open-up, and North of Ebbetts Pass we find more snow-beards and stranded banks than stretches of unbroken snow.

Dangerous Thaw Continues
With about every pass still plugged with snow, the remaining questions are, "How far up the river valleys on each flank of the passes does the thaw reach?", and, "How heavy and cold are the rivers and streams running?" I assume potentially difficult snow-pass crossings at the top, mucky and even still-flowing trails up and down the already thawed-out canyons between the mountain passes, with our clear and warm conditions and still-extensive Central and Southern Sierra snow cover still firing-up heavy flows through the rivers and creeks in those canyons between the passes, by every afternoon, at the latest...

OKAY! Fire up the MODIS, get your Tahoe to Whitney Maps lined-up, then fire up Google Earth (to help us connect the MODIS image with the maps with the features of The Range), and see if your analysis and mine match:

Here's my Identification & Analysis Notes about JMT-PCT-TYT
Trail Conditions using Today's MODIS

Whitney Covered
Looking Like Heavy Snow Going Over Forester,
Bubbs Creek Melted out up high...
Heavy Snow Over Glen Pass
Woods Melted out up to Rae Lakes
Clear up Woods to Heavy Snow Over Pinchot Pass
Snow down to South Kings
Snow up to Mather Pass
Snow down past Pallisades Lakes to upper canyon along Pallisades Creek
Snow way down below South & North Flanks of Muir Pass
Evolution Meadow Clear, Light Snow up San J to Muir Ranch
Snow over Selden Pass North to Upper Bear Creek
Clear to VVR
Snow over Silver Divide
Along Edge of snow to Reds (Fish Valley Clear)
Note snow-covered "dot" of Mammoth Mountain
JMT snow over Donohue,
PCT edge of snow to 1000 Is Lake, snow over Donohue
Lyell Canyon Clear
Clear up Virginia Canyon
Snow Climb over into Matterhorn
Snow in N Yos until descending into West Walker, Falls Canyon maybe clear to Grace Meadow...
Snow over Leavitt
Light Snow Sonora Pass
Snow over Sonora Gap
East Carson clear up high to & through Ebbetts
NE aspect Reynolds Peak may have remnants, but relatively clear to Tahoe

 CONTINUING

Fording Hazards

Snow travel Hazards

added
SKEETER HAZARDS!!

 

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

 

Modis Satellite
Views

Compare
2015, 17, 18, & 19

Current Sat Views

 

 

SIXTEENTH REPORT
JULY 5

High Sierra Backpacker
HAZARD WARNINGS

CONTINUING

Fording Hazard

Snow travel Hazard

added
SKEETERS!!

 

A Month of the Warm-Dry
CONTINUING
Fording & Snow Terrain Travel Hazards

Though the snowpack is melting, we've had none of the early season heat waves that have charactered the last 11 seasons...with, "temperate," conditions, ("being not too hot, nor too cold"), slowing the progress of the thaw. Thus, there are still at least a couple of feet of snow along the Central and Southern Sierra Crestlines and highest elevations, with protected and NE facing aspects holding more, while river flows are still dangerously high, strong, and cold. I am still expecting the daily high water river runoff marks will begin descending to reasonably safe levels, soon, but great caution must still (and always), be exercised.

Key High Sierra Roads Opening

Reds Meadow Road Opened July 4

Tioga Road, Highway 120 Unlimited Opening, July 1

 

Skeeter Alert Added:
Oh yeah, and be Ready for Skeeter Heaven...
(Skeeter Hell for Hikers...)

 

 

FIFTEENTH REPORT
JUNE 25

High Sierra Backpacker
HAZARD WARNINGS

Fording Hazard

Snow travel Hazard

 

Three Weeks of Warmth
Continued Fording & Snow Terrain Travel Hazards
Though the snowpack is melting rapidly, there are still at least four feet along the Central and Southern Sierra Crestlines and highest elevations, while river flows are still dangerously high, strong, and cold. I am expecting the daily high water river runoff marks will begin descending to reasonably safe levels, soon.

 

 

 

FOURTEENTH REPORT
JUNE 17


Two Weeks of Warmth

High Sierra Backpacker
HAZARD WARNINGS


Fording Hazard

Snow travel Hazard

High Sierra Calendar; June 16-22, 2019

NOTE
HIGH HAZARD CONDITIONS
FORDING
The river and creek levels have risen, and are carrying very powerful flows of very cold water even at the tops of their drainages. The river and creek crossings between peaks along the routes of the PCT, JMT, & TYT are currently Very Dangerous, and many are Uncrossable.

SNOW TRAVEL HAZARD
Despite the thawing of 81% of the 201% of snowpack we started this month with, there is still LOTS of snow along the Sierra Crest and on its High Flanks. This snow will offer slip and fall dangers early in the morning, when its coldest, then rapidly shift to a source of fatigue and exhaustion danger as the deep snowpack softens, and we begin postholing.

"AFTER" THE HIKING DAY DANGERS
Steady contact with wet snow can leave us in camp after a long day of hiking, totally wet, drenched to the skin by our constant contact with wet snow, and exhausted by the postholing up to our knees with every step after the snow softened. Wet, cold and tired... at 10,000 feet of elevation.

Though it's been warm during day and overnight, we are still going to need the gear sufficient to warm us up, and keep us warm while drenched, sufficient to deal with whatever winds, cold temps, or bad weather blows in overnight, especially while we are wet, cold, and tired-out by crossing a heavily-snow encrusted High Sierra Crestline. I addressed this issue below, earlier in this year's thaw.

At this point we are between our Spring and Summer Gear Kits, especially paying attention to having sufficient insulation to deal with being wet at high altitudes overnight.

 

THIRTEENTH REPORT
JUNE 11


Second Day of Heatwave

High Sierra Backpacker
HAZARD WARNINGS

Heat Hazard

Fording Hazard

Snow travel Hazard

High Sierra Calendar; June 9-15, 2019

 

 

 

TWELVTH REPORT
JUNE 9

 

RED FLAG
ADVISORIES,

EXCESSIVE HEAT,
&
FORDING HAZARDS

NWS HAZARDS

Heat-Fording-Flooding
Sacto-----Hanford

Fording-Flooding
Reno Walker R Fording

Heat
Hanford Heat

All
NWS HAZARDS

 

High Sierra Backpacker
HAZARD WARNINGS

Heat Hazard

Fording Hazard

Snow travel Hazard

High Sierra Calendar; June 9-15, 2019

 

 

 

ELEVENTH REPORT
JUNE 7

Notes from the Trail

The weather instability fueling the last few week's 54% addition to the snowpack, (and this week's 34% loss in the N Sierra Snowpack...), during late May and early June, has finally calmed down, and rising heat is soon going to bring extremely dangerous fording conditions to the already challenging Spring-Snow Conditions and gear that's now required for High Sierra travel.

Recent Snowpack Review
147% on May 20
<Plus 27% to 191% between May 23 to May 28>
201% on June 3
+54% in 11 days

Since the 3rd
N Sierra −34% in 3 Days



HAZARD WARNINGS

Snow Terrain-RISING River Crossings
DO NOT ENTER SIERRA NEVADA WITHOUT PROPER SPRING GEAR,
the
PROPER EXPERIENCE TO NEGOTIATE-NAVIGATE SNOW,
&
EXCELLENT DANGEROUS RIVER CROSSING SKILLS,
with
EXCELLENT FITNESS

The rivers and streams are approaching their unpassably-dangerous phase...

Views from the Trail

SEKI OLD INSIDER
Map
"We rescued a young man that made it to Crabtree ranger station last week with severe frostbite; he'll lose most of his toes. If the passes don't kill you, the river crossings will.  Rangers are starting to mobilize this week."

YOSEMITE OLD INSIDER
Map
Tuolumne Meadows Resupply
From. "...the “Metto, where everything is Betto!”
"...we are kept in the dark until the opening week."
"I’ve got a couple of park service (off the record) pals that think the pass will open around mid to late June which would mean a couple more weeks and we should open."
"...the prediction is opening July 8th to 15th and that’s my over under."

Kennedy Meadows Pack Station
Full Services
Map

Lake Alpine Lodge

LIMITED SERVICES
Map
"...snowed on Memorial weekend and the cabins are still pretty much buried."
"restaurant open on weekends only right now."
"...have a lot of snow and the lake hasn’t thawed out yet."
the warm weather is melting the snow pretty fast.

 

 

 

TENTH REPORT
MAY 28

An Active Spring

An Unstable May
This month's nearly continuous run of steady light precipitation since the 5th has not piled great masses of snow upon our already heavy Winter snowpack. But, this steady weak storm activity over almost the whole month of May has worked to maintain, recharge, and supplement the already-existing heavy early-May snow pack into late May, conditions which have, "preserved," the existing heavy snow pack, a, "preservation," which has now left us with a late May snowpack that is still rivaling, but still less than, the record year of 2017 (2017 calendar). Wow!

A Hard, Wet, Cold Beauty
Plus, these are difficult and potentially very dangerous conditions to backpack through, if one is lacking the proper gear, skills (Winter Navigation), or the fitness (H1), these difficult, but very beauitiful, traveling conditions demand.

 

2019
Current Snowpack:
Percent of Average for
May 28:
N Sierra: 203%
+31% in 5 days

Cen. Sierra: 203%
+29% in 5 days

S Sierra: 173%
+23% in 5 days

Ca State: 191%
+37% in 5 days

Backpacker's Calendar

 

 

 

NINTH REPORT
MAY 24

TOUGH TRAVELING WEATHER

This morning's brief period of clarity will bring High Sierra hikers a short respite from the last three days of these particularly terribly, difficult combination of conditions that occur during the Spring and Fall, "transitions," when the temperatures of Earth and Atmosphere are right on the freezing point of water. This means that everything that falls from the sky, even the snow, turns into cold water when it lands on you. Every, "touch," of snow (from the sky or on the ground) brings wetness on contact. A very cold wetness.

The creeks and rivers are running fast and cold, but have not yet, "surged," though that looks likely to happen when this latest bout of atmospheric instability departs the Sierra, and the heat from the big Highs building-in off the Coast of Ca and in The Big Valley begin to heat up the Sierra. That should happen soon...and then the Thaw will begin in earnest...

But, these last three days, and likely the next three, are going to present continued High Elevation light snowfall, and possibly even liquid precip. The snowfall will melt upon hiker contact, making for soggy, and potentially deeply chilled, backpackers.

It is much easier to stay warm when it's colder, when the snow remains frozen upon contact, sliding off and leaving us dry. These periods of the seasons between freezing and wet conditions, these freezing-wet conditions we have been seeing over the last three days along the High Sierra Crest, and likely for the next three, offers some of the High Sierra's most treacherous conditions for improperly shelled and insulated backpackers.

"Light," gear does not cut-it during these freezing-wet transition periods. A proper shell and solid, sufficient layers of  insulation are required for fundamental safety and comfort, (when wet and cold on a wind swept High Sierra!), even if you could get by with a lighter layering and shell setup, and, "suffer through." That's likely true, unless an unexpected event rolls into camp, (unexpected? really?) at which point our lightweight gear could put us into a miserably cold fight, and flight out of the mountains, for our lives.

Gear

Lake Alpine Lodge Scheduled to Open, Calendar.

 

EIGHTH REPORT
MAY 18

 

HIGH SIERRA WEATHER

Upcoming Week of Waves of Lite to Heavy Sierra Snow

WINTER STORM
WARNINGS
Sacto-----Hanford

North Sierra
Sacto Warning
"...Late Season Mountain Snow Today..."

South Sierra
Hanford Warning
"...Winter weather continues over the higher elevations of the
Sierra today..."

High & Low
FORECASTS

High Elevation
8600 Ft

Carson Pass Forecast
7 Days of Snow

Low Elevation
4000 Ft

Yosemite Valley Forecast
7 Days of Rain

It looks like feet of snow are going to fall over this next week.

PCT Advice
In or Approaching the Sierra?
This next week will not be a good time to enter, or be in the Sierra. Unless you are already in the Sierra. In that case I hope to Jupiter that you are fully equipped with Winter Gear, have the skills to survive and navigate snow-obscured terrain in storm conditions, and have the level of fitness necessary to sustain all the above to your next planned resupply...

On the Trail?
And Not in the Sierra?
At least for the next week it will be a good time to, "hunker-down," and carefully assess the validity of your plans in the face of Winter weather & conditions in the Sierra, to determine and make the necessary modifications to both your plans and your gear to maintain your safety margins in these harsh conditions.
Modified plans and gear will not help if you don't have the Winter skills and fitness necessary for extended snow travel in the Sierra.

Game-Changer
It will take a week for fresh snow to consolidate into travel-friendly conditions after the snowfall stops.

 

 

 

SEVENTH REPORT
MAY 15

HIGH SIERRA WEATHER

Lite to Moderate Precip

The Weather Page

Forecasting Tropical Moisture & Heat Flows
North & Northeast Pacific Tropical Transport Mechanisms

Satellite Views

Expected Seven Day Totals

 

 

 

SIXTH REPORT
MAY 14

HIGH SIERRA WEATHER PROSPECTS

A, "Spring Recharge," is Underway...

May 2019 High Sierra Storm Activity to Recharge High Sierra Snow Pack

WINTER STORM WARNINGS

NORTH SIERRA
2:47 PM PDT Tue May 14 2019
NWS SACTO OFFICE
"A strong, late season storm will bring significant snowfall
accumulations to the higher elevations of the northern Sierra
Nevada and Mt. Lassen area later this week. Expect travel delays
and possible chain controls if going through the higher passes of
the northern Sierra Nevada. Once this storm exits the region late
Friday morning, another system is forecast to impact the mountains
over the weekend."

NWS SACTO

Carson Pass Seven Day Forecast

 

CENTRAL-SOUTH SIERRA
140 PM PDT Tue May 14 2019
NWS HANFORD OFFICE
...the cities of Devils Postpile, Florence Lake,
Lake Thomas Edison, Tuolumne Meadows, Fish Camp, Shaver Lake,
Camp Nelson, Giant Forest, Lodgepole, and Grant Grove...

WINTER STORM WARNING IN EFFECT FROM MIDNIGHT WEDNESDAY NIGHT
TO 6 AM PDT FRIDAY ABOVE 5000 FEET...

WHAT...Heavy snow expected above 5000 feet. Total snow
  accumulation of up to 21 inches expected. Winds gusting as high
  as 40 mph.

WHERE...Central Sierra, North Kings River and Sequoia Kings.

WHEN...From midnight Wednesday night to 6 AM PDT Friday.

NWS HANFORD

Mono Hot Springs Seven Day Forecast

 

High Sierra Backpacker's Calendar, May 12-18

 

 

 

FIFTH REPORT
MAY 10

Report from
Kennedy Meadows

Alex
We’re open fully and fish have been stocked.

First pct hiker was here yesterday.

Lots of snow up high.

Expect snow and high runoff until mid July at higher elevations.

Highway should be open over pass by memorial weekend.

We’re stocked and ready for hikers.

Thanks, Matt

 

FOURTH REPORT
MAY 9

Last Comparable Year

2017

Prospects

A Warm Run
We've had about 20 days of warmer & warming weather, with a streak of near-record temps towards the end of April, with a nice streak of mostly warm & warming weather since then. I started switching out my Full Winter Gear for a Spring Kit since April 30th, as the temps rose out of the Winter range.

Open Trails Dates?
This streak of relatively calm, stable weather has drawn forward the date that the trans-Sierra Highways open, which is a big step towards the date that Summertime backpackers can access snow free High Sierra trails.

Instability Returns
Now we are seeing a period of potentially unstable, though weak, weather approaching, which will have some capacity to, #1, either rebuild the snowpack, which will push the Summertime access start date further back, or, #2, the warmth of the moisture in these weak Lows can push rainshowers over the Sierra Crest, which will quickly scour much snow off the Crest, which will draw the date for open trails quickly forward. These same Spring Showers capable of clearing the snow off the Sierra Crest will quickly push the creeks and rivers draining it to furious, and very dangerous levels.

Its Coming
Either way, with cold or warm precipitation, we are still approaching this furious phase of the Spring Runoff, the only difference being when, either sooner or later, depending in large part to exactly how this upcoming phase of weather instability manifests itself.

Nutshell
Tropical Moisture from the South will hasten the Thaw. Cold Moisture from the North will prolong the Thaw.  

SPRING THAW
Water

RIVER INFORMATION

RESERVOIRS

HAZARDS

Snow

All Sierra Snow Sensors,
(Scroll Down)

Selected Watershed Snow Sensors

Latest Selected Crestline Sensors

 

THIRD REPORT
April 14

Last Comparable Year
2017

Party Like its 2017
At this point in time our monster 2019 snowpack is tracking fairly close to that of 2017. The 2017 season featured a massive snopack persisting through the Summer, starting off with a massive Spring Thaw featuring not just a mountain range full of energy-sucking deep, wet, cold snow, but extremely dangerous runoff flows spanning from the middle of June through mid July, with heavy snow remaining at high elevations beyond that date, and along the Sierra Crest all Summer long.

Which Way the Weather?
Our situation could change rapidly. More snow could fall. Torrential tropical rains could wash much of the snow pack down, or that wandering High that's right now moving on and off the West Coast of the USA could anchor itself on the West Coast to initiate a heat wave. Anything is always possible, but more so now, now that extreme weather behaviors have become quite commonplace.

Keep your eyes on the Skies!

Compare This Year to 2017
See the High Sierra Backpacker's Calendar, April 14, 2019, which has contemporary observations with extensive links back through the comparable dates in the 2017 season. Inspect the contours of the Spring of 2017 to get some idea about exactly what you're up against this Spring.

EXPECT
Extensive
Early Season Obstacles and Dangers
The PCT is No Joke
The Spring Snowpack and Thaw this year will present significant obstacles and dangers to all those who venture in during the Thaw, and especially to any unwise enough to enter the snow covered High Sierra without adequete gear, skills, fitness, and experience tailored for difficult snow terrain, navigation without trails, and extreme fording conditions. These conditions can thrill you and/or kill you, depending on numerous climate and terrain factors that you've got to keep track of to properly suss out exactly where you fit in.

Key External & Internal Knowledge
We'd prefer to know when conditions in the Sierra make this transition from killing to thrilling for each of us, for each of our unique levels & combinations of capabilities. Keeping these environmental dangers within each of our, "thrill," catagories, to better keep ourselves out of the way of forces of Nature that can kill us fairly easily, is the goal of all our observations, after the basic enjoyment procured by simply watching the evolving beauties of each  season's unique profile.

 

 

April 5

 

SEKI WARNS: Lots of Snow on the South Sierra Crest & Flanks

 

 

 

2019
SECOND REPORT

April 2

 

CLIMATE, WEATHER, & CURRENT & FUTURE PROSPECTS

The Great Drought is Over

Backpacker's Calendar, First Week of April

 

 

2019
FIRST REPORT

March 30

EPIC SNOWPACK on the SIERRA CREST

Review the March Trail News

Review the March High Sierra Backpacker's Calendar

STATUS
This year's 161% of average snowpack for this date compares favorably with the historic snowpack of 2017, which weighed-in at 163% on this same date. But the 2017 snowpack was not yet done at the end of March, getting pumped-up to an amazing 194% by May 2, 2017!

NEXT STEP
So today we might not yet be quite, "out of the woods," for even greater snow accumulation yet, if the tropical flows that put the majority of this vast snowpack on the Sierra this year, continue into Spring of this year like they did during 2017.

We are not having much of an El Nino, and not much heat is boiling-off out of the Tropics, especially the SW corner of the N Pac above Indonesia, right now, but conditions across the Tropical Pacific up to the Northernmost edges of the Pacific can change in a heartbeat.

2015
Note that during 2015 we had the biggest El Nino in history boiling along like a vast hot tub, as the High Sierra experienced its least amount of snowfall since the epic megadroughts of the ancient past. That's frigging weird.

2017
We had a La Nina happening, which typically suppresses snowfall, during the mega snow year of 2017.That's frigging weird, too...

What this Means
Expect Anything. Be Surprised by Nothing.

Aside from that obvious bit of wisdom, these conditions, if they persist, will seriously delay the entry into the Sierra Nevada for a vast majority of this year's PCT hikers, as happened in 2017.

Those who do enter the Sierra in these types of conditions should have high altitude snow travel experience and fitness, be properly equipped for the intense difficulties and dangers of travel through deep, wet, steep, soft snow, and be ready to deal with an extended period of incredibly dangerous fording conditions.

Related

March 30
SPRING 2019: Yosemite Extends Glacier Point Winter Access

 

Current Conditions

Winter Travel Conditions, Gear, Skills, & Fitness Required

 

The Weather Page

Snow Status, Date, & Forecasts

 

 

Earlier

 

March 28

Heavy Snow Pack Warning

 

March 27

Dangerous Fording Ahead

NOAA: Widespread Flooding to Continue through May

 

March 17

Yosemite Announces Delayed Facility Openings
Note the Snow will Affect High Trail Access, & Damages will Affect Trails Too

 

March 9

Dangers of the Heavy Winter & Potentials of the Spring Thaw of 2019
Conditions Indicate a Late Start for Wise & Observant PCT-JMT-TWT Hikers

 

 

March 6

2019 Snow Pack Shaping-Up like the Winter of 2017

 

 

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High Sierra, Sierra, Sierra Nevada, Spring, of, 2019, weather, trends, temps, thaw, snow, river, conditions

 

Originally Published
2019-03-30

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