Gulf of Alaska Storm to Hit California Hard Tomorrow | 1-3″ of Snow/Hour, Coldest Temps Since 2013, 100mph Winds, 12-18″ Snow Forecast

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PINK = Winter Storm Warning. BLUE = Winter Storm Watch. PURPLE = Winter Weather Advisory. Yosemite and Mammoth are not under advisories
PINK = Winter Storm Warning. BLUE = Winter Storm Watch. PURPLE = Winter Weather Advisory. Yosemite and Mammoth are not under advisories

NOAA is forecasting the strong Gulf of Alaska storm they’ve been tracking the past week to hit California hard tomorrow with snowfall rates from 1-3″ per hour between 11am and 5pm.  NOAA does not recommend travel in the Sierra during this time.

NOAA currently has a Winter Storm Warning issued for the west slope and Sierra crest, a Winter Weather Advisory issued for the east slope of the Sierra, and a Winter Weather Advisory for the Coast and Cascade ranges.

This storm is forecast to be a doozy with:

  • Coldest air since January 2013
  • 1-3″ per hour snowfall rates on Tuesday (see image below)
  • 12-18″ of snow for the high country
  • 100mph winds
  • Snow ratios as high as 20:1
  • Lake effect snow for the east side of Lake Tahoe
"With this next system, we are expecting some particularly heavy Sierra snow 11am-5pm Tuesday." - NOAA
“With this next system, we are expecting some particularly heavy Sierra snow 11am-5pm Tuesday.” – NOAA

This storm is forecast to bring the coldest weather to California since January 2013.

THIS WILL THE BE COLDEST AIR THUS FAR THIS SEASON AND 
POSSIBLY THE COLDEST PERIOD OF WEATHER SINCE JANUARY 2013. 
- NOAA Reno, NV today
"Once we get past the snow and wind, very cold air will move into the region Tuesday Night and hang around until at least Saturday. This will likely be the coldest stretch of weather in the Sierra and western Nevada since January 2013!!!" - NOAA, today
“Once we get past the snow and wind, very cold air will move into the region Tuesday Night and hang around until at least Saturday. This will likely be the coldest stretch of weather in the Sierra and western Nevada since January 2013!!!” – NOAA, today

NOAA is forecasting this storm to bring 6-18″ of snowfall to Lake Tahoe with snow levels as low as 1,500-feet.

SNOW ACCUMULATIONS...12 TO 18 INCHES ALONG THE CREST...6 TO
12 INCHES ABOVE 4000 FEET....2 TO 6 INCHES ABOVE 2000 FEET FOR
THE MOTHERLODE WITH...1 TO 4 INCHES EXPECTED FOR THE NORTHEAST
FOOTHILLS. LOCALLY SNOW MAY FALL AS LOW AS 1500 FEET. - NOAA Reno, NV today

Mammoth Lakes and Yosemite do not have any advisories but are forecast to see around 6-12″ of snow.

THE HIGH SIERRA COULD RECEIVE A
FOOT OR MORE WITH 4 TO 6 INCHES IN MAMMOTH LAKES OVER A 30 HOUR
PERIOD. - NOAA Reno, NV today
PURPLE = 12-18" of snow forecast.
PURPLE = 12-18″ of snow forecast.

Winds are forecast to gust as high as 100pm on Sierra ridges with up to 50pmh sustained winds.

RIDGE GUSTS ARE EXPECTED TO REACH 100 MPH
ALONG THE SIERRA CREATING TURBULENT CONDITIONS FOR AIR TRAVELERS. 
- NOAA Reno, NV today
DARK RED = 100% chance of snow.
DARK RED = 100% chance of snow Tuesday- Wednesday.  image:  noaa, today

NOAA is feeling confident in lake effect snow hitting the east shore of Lake Tahoe and boosting their snowfall number.  This is great news for Mt. Rose ski area.

ADDITIONALLY, LAKE EFFECT SNOW WILL BE LIKELY. - NOAA Reno, NV today
image: noaa, today
image: noaa, today

There are 12 ski resorts open in California right now (& 1 in Lake Tahoe, NV).  The resorts further north (higher on this list) have a strong chance of seeing some dry, blower powder this week.

  • Boreal
  • Sugar Bowl (will open on Thursday)
  • Squaw Valley
  • Alpine Meadows
  • Northstar
  • Mt. Rose, NV
  • Heavenly
  • Sierra-at-Tahoe
  • Kirkwood
  • Mammoth
  • Mountain High
  • Snow Summit
  • Big Bear
Snow forecast map for Tahoe.  BRIGHT PURPLE = 12-18" of snow forecast
Snow forecast map for Tahoe. BRIGHT PURPLE = 12-18″ of snow forecast

WINTER STORM WARNING for CALIFORNIA

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
347 AM PST MON NOV 23 2015

...A COLD WINTER STORM WILL BRING LOW ELEVATION SNOW...

.A WINTER STORM WILL MOVE INTO THE REGION ON TUESDAY. SNOW LEVELS
WILL START OUT BELOW MAJOR SIERRA PASS LEVELS AND RAPIDLY LOWER
THROUGHOUT THE DAY. SNOW MAY START FALLING IN THE MOTHERLODE AS
EARLY AS THE AFTERNOON. THE BRUNT OF THE STORM WILL MOVE THROUGH
ON TUESDAY AND TUESDAY EVENING WITH SNOW SHOWERS LIKELY CONTINUING
TO IMPACT PARTS OF THE MOTHERLODE THROUGH WEDNESDAY MORNING.

SNOW ACCUMULATIONS...12 TO 18 INCHES ALONG THE CREST...6 TO
12 INCHES ABOVE 4000 FEET....2 TO 6 INCHES ABOVE 2000 FEET FOR
THE MOTHERLODE WITH...1 TO 4 INCHES EXPECTED FOR THE NORTHEAST
FOOTHILLS. LOCALLY SNOW MAY FALL AS LOW AS 1500 FEET.

MOTHERLODE-WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF...GRASS VALLEY...JACKSON...CHESTER...
QUINCY...BLUE CANYON

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH WEDNESDAY MORNING...

* MAIN IMPACT: MAJOR TRAVEL PROBLEMS EXPECTED. ROAD CLOSURES AND
  DELAYS LIKELY. DRIVING CONDITIONS NORMALLY SEEN ONLY NEAR PASS
  LEVELS WILL OCCUR AT MUCH LOWER ELEVATIONS.

* CONFIDENCE...HIGH FOR UPPER ELEVATIONS...MEDIUM FOR FOOTHILLS.

* TIMING...HIGH

* LOCATIONS...LASSEN PARK SOUTH THROUGH THE WESTERN SLOPES OF
  THE SIERRA NEVADA

* SNOW ACCUMULATIONS...12 TO 18 INCHES ALONG THE CREST 6 TO 12
  INCHES ABOVE 4000 FEET....2 TO 6 INCHES ABOVE 2000 FEET.
Snow forecast map for Yosemite and Mammoth
Snow forecast map for Yosemite and Mammoth

WINTER STORM WATCH for CALIFORNIA:

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
347 AM PST MON NOV 23 2015

...A COLD WINTER STORM WILL BRING LOW ELEVATION SNOW...

.A WINTER STORM WILL MOVE INTO THE REGION ON TUESDAY. SNOW LEVELS
WILL START OUT BELOW MAJOR SIERRA PASS LEVELS AND RAPIDLY LOWER
THROUGHOUT THE DAY. SNOW MAY START FALLING IN THE MOTHERLODE AS
EARLY AS THE AFTERNOON. THE BRUNT OF THE STORM WILL MOVE THROUGH
ON TUESDAY AND TUESDAY EVENING WITH SNOW SHOWERS LIKELY CONTINUING
TO IMPACT PARTS OF THE MOTHERLODE THROUGH WEDNESDAY MORNING.

SNOW ACCUMULATIONS...12 TO 18 INCHES ALONG THE CREST...6 TO
12 INCHES ABOVE 4000 FEET....2 TO 6 INCHES ABOVE 2000 FEET FOR
THE MOTHERLODE WITH...1 TO 4 INCHES EXPECTED FOR THE NORTHEAST
FOOTHILLS. LOCALLY SNOW MAY FALL AS LOW AS 1500 FEET.

MOTHERLODE-WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITIES OF...GRASS VALLEY...JACKSON...CHESTER...
QUINCY...BLUE CANYON

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH WEDNESDAY MORNING...

* MAIN IMPACT: MAJOR TRAVEL PROBLEMS EXPECTED. ROAD CLOSURES AND
  DELAYS LIKELY. DRIVING CONDITIONS NORMALLY SEEN ONLY NEAR PASS
  LEVELS WILL OCCUR AT MUCH LOWER ELEVATIONS.

* CONFIDENCE...HIGH FOR UPPER ELEVATIONS...MEDIUM FOR FOOTHILLS.

* TIMING...HIGH

* LOCATIONS...LASSEN PARK SOUTH THROUGH THE WESTERN SLOPES OF
  THE SIERRA NEVADA

* SNOW ACCUMULATIONS...12 TO 18 INCHES ALONG THE CREST 6 TO 12
  INCHES ABOVE 4000 FEET....2 TO 6 INCHES ABOVE 2000 FEET.

SPECIAL WEATHER STATEMENT for CALIFORNIA:

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
330 AM PST MON NOV 23 2015

SURPRISE VALLEY CALIFORNIA-LASSEN-EASTERN PLUMAS-
EASTERN SIERRA COUNTIES-GREATER LAKE TAHOE AREA-MONO-
MINERAL AND SOUTHERN LYON COUNTIES-GREATER RENO-CARSON CITY-
MINDEN AREA-WESTERN NEVADA BASIN AND RANGE INCLUDING PYRAMID LAKE-
NORTHERN WASHOE COUNTY-
INCLUDING THE CITIES OF...CEDARVILLE...EAGLEVILLE...
FORT BIDWELL...PORTOLA...SUSANVILLE...WESTWOOD...SIERRAVILLE...
LOYALTON...SOUTH LAKE TAHOE...TAHOE CITY...TRUCKEE...
MARKLEEVILLE...BRIDGEPORT...COLEVILLE...LEE VINING...
MAMMOTH LAKES...HAWTHORNE...YERINGTON...SMITH VALLEY...MINA...
SCHURZ...GLENBROOK...INCLINE VILLAGE...SPARKS...VERDI...
GARDNERVILLE...VIRGINIA CITY...FERNLEY...FALLON...LOVELOCK...
SILVER SPRINGS...NIXON...IMLAY...EMPIRE...GERLACH

...TRAVEL IMPACTS LIKELY FOR THE UPCOMING HOLIDAY...

AN UNUSUALLY COLD WINTER STORM FOR LATE NOVEMBER WILL MOVE INTO
THE SIERRA AND WESTERN NEVADA TUESDAY THEN LINGER THROUGH THE
REMAINDER OF THE WEEK.

WINDS: EARLY TUESDAY STRONG AND GUSTY WINDS COULD CREATE
SIGNIFICANT TURBULENCE FOR ANYONE FLYING IN FOR THE THANKSGIVING
HOLIDAY. STRONG CROSS WINDS OF 50 MPH OR MORE ARE ALSO POSSIBLE
ALONG HIGHWAY 395 MAKING TRAVEL HAZARDOUS FOR HIGH PROFILE
VEHICLES.

SNOW: A STRONG COLD FRONT WILL SWEEP SOUTH DURING THE DAY TUESDAY
AND USHER IN MUCH COLDER AIR ALONG WITH PERIODS OF SNOW INTO
WEDNESDAY. SNOW LEVELS MAY FALL AS LOW AS 2000 FEET LEADING TO A
SIGNIFICANTLY LONGER COMMUTE TIME FOR THOSE TRAVELING DOWN THE
WESTERN SIERRA SLOPES AND ACROSS MUCH WESTERN NEVADA. IN THE
HIGHER ELEVATIONS OF THE SIERRA...ONE FOOT OR MORE OF SNOW IS
POSSIBLE FROM TUESDAY THROUGH LATE WEDNESDAY. IN THE SIERRA
VALLEYS...5 TO 10 INCHES IS POSSIBLE. IN THE LOWER VALLEYS OF
NORTHEAST CALIFORNIA AND WESTERN NEVADA UP TO 3 INCHES OF SNOW IS
POSSIBLE. THOSE WITH TRAVEL PLANS IN THE SIERRA SHOULD CONSIDER
ALTERNATE ROUTES AND DEPARTURE TIMES.

COLD: MUCH COLDER AIR SETTLES OVER THE REGION FROM TUESDAY NIGHT
INTO SATURDAY. HIGHS ARE FORECAST TO REMAIN IN THE 20S IN THE
SIERRA VALLEYS AND UPPER 20S TO LOWER 30S ACROSS WESTERN NEVADA
AND NORTHEAST CALIFORNIA. THIS WILL THE BE COLDEST AIR THUS FAR
THIS SEASON AND POSSIBLY THE COLDEST PERIOD OF WEATHER SINCE
JANUARY 2013. PREPARATIONS SHOULD BE MADE EARLY TO PROTECT POORLY
INSULATED WATER LINES...LIVESTOCK AND OUTDOOR PETS FROM COLD
RELATED PROBLEMS. THOSE HEADING OUTDOORS SHOULD DRESS
PROPERLY...WIND CHILL TEMPERATURES IN THE HIGHER ELEVATIONS MAY
FALL AS LOW AS 20 DEGREES BELOW ZERO.

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