Thursday, February 23, 2017

NWS: Next round of storms to be colder, weaker

From the National Weather Service:
An upper level disturbance will rotate through northern California through Friday. Scattered rain and snow showers Today and Friday, mainly for the Foothills and Sierra.

Two cold, but weaker systems compared to earlier in the week, will move over the region late Saturday into Monday. These systems may cause just enough snow for mountain travel delays. Rainfall amounts will generally be light. The forecast trend with these storms has been for lighter precipitation.

Impacts
Longer travel times and possible chain controls over mountains
Flooded roadways and low lying areas will continue
Levees issues will continue, especially for the delta

Forecast Confidence
Medium for a weekend storm
Low for timing details, precipitation amounts

Timing and Strength
Today/Friday

Scattered rain and snow chances, mainly for foothill and mountains
Patchy frost possible Friday morning for the Valley
Saturday/Sunday
Cold storm system anticipated to arrive Saturday night
Snow levels between 2500 and 3500 feet
Generally light snow amounts through Monday
Light rainfall accumulations expected for the Valley and Foothill locations

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