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wwus85 krev 182308

special weather statement
national weather service reno nv
408 pm pdt sun mar 18 2018

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
408 pm pdt sun mar 18 2018

...significant winter storm later wednesday through thursday

light valley rain and sierra snow and rain will develop tuesday 
and tuesday night, with some travel impacts possible for sierra 
and northeast california passes. a much stronger system will bring
lower valley rain, sierra rain and snow, and breezy to windy 
conditions starting on wednesday and continuing until a cold front
moves through thursday night. 

impact details wednesday through friday:

- sierra: 

* snow levels will start out fairly high, between 7000 and 8500
  feet, wednesday and wednesday night before falling on thursday
  as a cold front approaches the region. several feet of snowfall
  are likely in the high sierra by friday morning. snowfall in 
  the tahoe basin, and in mono county below 8000 feet, is more 
  uncertain and will depend on how fast snow levels fall. still, 
  significant travel impacts for the main sierra passes including 
  interstate 80 and highway 50 are likely on thursday, continuing 
  into friday morning...with impacts to highway 395 in mono county
  possible by thursday night.

- western and west-central nevada:

* for wednesday and thursday, rain is expected to fall in the
  valleys and foothills of western nevada..with rain possibly
  changing briefly to snow after the cold front thursday night. it
  is too soon to tell if valleys will get accumulating snowfall,
  but the friday morning commute would be the period most likely
  affected if snow does accumulate. 

* winds are expected to be gusty, which could bring periodic impacts
  to aviation and high-profile vehicles.

wwus86 ksto 182126

special weather statement
national weather service sacramento ca
226 pm pdt sun mar 18 2018

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
226 pm pdt sun mar 18 2018

...another series of storm systems this week...

  *localized urban and flood stream flooding possible this week.
  *chain controls and hazardous travel across sierra passes,
   especially late this week.
  *localized power outages due to gusty winds and downed trees.

.forecast confidence...

.timing and strength...
  *tuesday through friday
     *initially higher snow levels, then lowering thursday through
     *1 to 2 inches of rain possible in the valley, 2 to 6 inches
      over the mountains.
     *12 to 48 inches of snow possible over higher sierra passes.

.weather summary...
california has a couple days break in between storm systems. the
next storm system is already on our doorstep, with light
precipitation expected to begin across the region on tuesday. the
period of heaviest precipitation and gusty winds is currently
projected to be wednesday through thursday. snow levels will start
out initially rather high, but colder air will arrive late this
week, and another round of heavy snow is expected for late this


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