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Special Weather Statement


Special Weather Statement
National Weather Service RENO NV
216 PM PST Thu Nov 23 2017

CAZ070>073-NVZ001>005-241200-
Surprise Valley California-Lassen-Eastern Plumas-
Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County-
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, Stateline, Glenbrook,
Incline Village, Sparks, Verdi, Gardnerville, Virginia City,
Fernley, Fallon, Lovelock, Silver Springs, Nixon, Imlay, Empire,
and Gerlach
216 PM PST Thu Nov 23 2017

...STRONG WINDS THIS WEEKEND WITH SNOW OVER THE PASSES BY LATE
SUNDAY...

A potent Pacific storm will move inland this weekend and bring
rain, mountain snow and gusty winds. The winds will begin Saturday
afternoon and continue through Sunday night. Precipitation will
begin as rain, even at the passes, as snow levels start high.
Snow levels will begin to fall Sunday with snow over the passes
possible by sunset Sunday. Expect holiday weekend travel impacts
due to winds and snow over the passes. Some details follow:

* WINDS: Strong, gusty southwest winds are expected this weekend.
  Winds will be breezy on Saturday and then increase significantly
  overnight into Sunday afternoon. While it is too early to
  estimate peak gusts, gusts of 60 mph or more are possible along
  portions of the 395 corridor and Sierra ridge gusts will likely
  exceed 100 mph.

* PRECIPITATION: Light rain is likely over the mountains by
  Saturday evening north of I-80, gradually spread southward into
  Sunday evening. Snow levels will also gradually fall during this
  time before crashing Sunday night as a strong cold front moves
  through. The precipitation will end Monday morning behind the
  front.

* SNOW LEVELS: Starting at near 9000 feet Saturday afternoon. They
  will fall to 5500 feet for Lassen County, 7000 feet for the
  Tahoe Basin, and 8000 feet for Mono County by late Sunday
  afternoon. Snow levels will crash Sunday night and fall to near
  the lower valley floors as the precipitation ends. While it is
  too early to predict snowfall amounts, moderate accumulations
  are likely for the Sierra passes with light accumulations
  possible as low as 4500 feet. Be prepared for major travel
  delays over Sierra passes due to slick and snow-covered roads.

$$


http://weather.gov/reno

Special Weather Statement
National Weather Service Sacramento CA
215 PM PST Thu Nov 23 2017

CAZ013>019-063-064-066>069-250000-
Shasta Lake Area / Northern Shasta County-
Burney Basin / Eastern Shasta County-Northern Sacramento Valley-
Central Sacramento Valley-Southern Sacramento Valley-
Carquinez Strait and Delta-Northern San Joaquin Valley-
Mountains Southwestern Shasta County to Northern Lake County-
Clear Lake/Southern Lake County-
Northeast Foothills/Sacramento Valley-Motherlode-
Western Plumas County/Lassen Park-
West Slope Northern Sierra Nevada-
Including the cities of Shasta Dam, Burney, Redding, Red Bluff,
Chico, Oroville, Marysville/Yuba City, Sacramento,
Fairfield/Suisun, Stockton, Modesto, Alder Springs, Lakeport,
Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon
215 PM PST Thu Nov 23 2017

Dry weather returns Friday, with a warm, weak system spreading
some light precipitation over the northern mountains on Saturday.
More widespread rain is expected with another mild system early
Sunday. A colder storm system is expected to move across the
region late Sunday into early Monday, bringing mountain snow. Snow
levels will initially be above pass levels with this event but
will rapidly drop below pass levels in the evening, to 4000-5000
feet by Monday morning, causing travel problems.

Impacts:
Motorists traveling into the mountains Sunday night into early
Monday should be prepared for winter weather conditions. Slick
roads are possible at lower elevations from wet leaves and clogged
drains.

Precipitation Totals:

Sunday into Monday:
A quarter of inch to 1 inch of rain for the Valley, around 1 to 2
inches for the foothills, with 1 to 3 inches possible in the
mountains.

Above 7000 feet, 4 to 8 inches of snow accumulation, a foot or
more over higher peaks.

Winds:
Southerly wind gusts to 25-30 mph in the Sacramento Valley and 55
mph over the crest on Sunday.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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