West Slope Northern Sierra Nevada Severe Watches & Warnings NOAA Weather Radio

Winter Weather Advisory
Statement as of 2:56 AM PDT on April 24, 2014

...Winter Weather Advisory in effect from 11 PM this evening to 5 am PDT Saturday above 5500 feet...

The National Weather Service in Sacramento has issued a Winter Weather Advisory above 5500 feet for heavy snow and/or blowing snow... which is in effect from 11 PM this evening to 5 am PDT Saturday.

* Snow accumulations: 5 to 10 inches above 5500 feet and up to 4 inches down to 4500 feet.

* Timing: snow begins above 7000 feet tonight before impacting areas down to 4500 feet Friday night.

* Locations include: Lassen National Park...Donner Pass...Echo Summit...Carson Pass.

* Winds: southwest 15 to 25 mph with gusts 35 to 50 mph.

* Impacts: greatest impacts may be periods of late season heavy snowfall accumulating on roads at pass level Friday afternoon into overnight. Blowing snow near Sierra crest may also limit visibilities.

* For a detailed view of the hazard area...visit http://www.Weather.Gov/Sacramento/hazards.

Precautionary/preparedness actions...

A Winter Weather Advisory for heavy snow and blowing snow means that visibilities will be limited due to a combination of falling and blowing snow. Use caution when traveling... especially in open areas.

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Special Statement
Statement as of 2:25 PM PDT on April 23, 2014

...Colder Pacific storm late Thursday into early Saturday...

* impacts: chain requirements possible with accumulating snow over trans-Sierra mountain passes late Thursday through early Saturday. Thunderstorms possible Friday with heavy rain, small hail, and gusty wind.

* Confidence: high in timing. Medium in precipitation amounts and thunderstorm potential.

* Timing: light precipitation is possible over Shasta County and the coastal mountains Thursday. Precipitation then increases and spreads over all of interior northern California late Thursday into Friday. Best thunderstorm chances are Friday into Friday evening. Decreasing showers Saturday with lingering chances mainly over the mountains through the weekend.

* Snow levels: initially around 6000 to 7000 feet Thursday into Thursday night...lowering to 4500 to 5500 feet Friday then 3500 to 4500 feet by early Saturday.

* Precipitation amounts: generally around half an inch or less in the Central Valley with higher amounts possible in the foothills and mountains and with thunderstorms. Snow amounts from 6 to 12 inches over the higher mountain terrain.