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wwus86 ksto 181308

special weather statement
national weather service sacramento ca
508 am pst wed jan 18 2017

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
508 am pst wed jan 18 2017

...stormy weather returning to northern california over the next 
several days...

a series of pacific frontal systems will bring an end to the
period of dry weather northern california has experienced over the
last several days. the first storm in the series begun moving 
into norcal wednesday morning bringing light precipitation over 
parts of the north state. heavier rain and mountain snow will be 
pushing over the north state between wednesday afternoon and 

this first moderately strong weather system will bring between
three quarters and two inches of rainfall to the valley from mid 
day wednesday to mid day thursday. some foothill locations could 
see 3 inches or more of rainfall. snow levels will start out 
moderately high at between 5000 and 6000 feet but then lower to 
around 4000 feet by thursday afternoon. several inches of snow 
will be possible above 4000 feet with up to a foot and a half possible
higher elevation and two feet or more possible highest peaks. 

in addition to the rain and snow...gusty winds are likely with the
wednesday/thursday system. winds gusts to 40 mph are forecast for
the valley and up to 50 mph over the mountains. white-out 
conditions will be possible at times over the sierra cascade 

after a break on thursday afternoon and evening another storm
system will hit northern california on friday. this system will be
a little weaker than the previous system in precipitation amounts
and wind but will come with lower snow levels generally between 
3000 and 4000 feet. another pacific storm is forecast to move 
through around sunday bringing still more rain, wind and mountain 
snow but with even lower snow levels between 2000 and 3000 feet. 

travel impacts over the mountains are likely with each of these 
weather systems with chain controls and delays likely. local 
flooding potential will return as well especially as rainfall 
accumulation totals rise with each storm. finally...periods of
strong winds may bring downed trees or tree limbs and cause power
outages especially late wednesday and sunday. 

those that may be impacted by this series of storms should 
continue to monitor the latest forecasts. 


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