FXUS66 KSTO 011908
AFDSTO
Area Forecast Discussion
National Weather Service Sacramento CA
1208 PM PDT Tue Apr 1 2025
Synopsis...
A strong system will continue to impact the region through this
evening bringing moderate to heavy mountain snow, gusty south to
west winds, and scattered showers and thunderstorms. Only light
showers currently expected over the northern Sierra on Wednesday
into Thursday, with dry and warmer weather late in the week and
over the weekend.
.Key Messages...
* Through 11 PM today: Winter Storm Warning for the northern
Sierra and southern Cascades above 3500 feet. Snow levels 3500
to 4500 feet today. Snow rates of 1-2 inches per hour through
mid afternoon. Additional snow amounts of around 1-2 feet.
* Through 5 PM today: Winter Storm Warning for the northern Coast
Range and Shasta County mountains. Additional snow amounts of 2
to 8 inches.
* South to west wind gusts up to 20-30 mph today in the Valley and
foothills, and 30-50 mph over the Sierra Crest; strongest winds
expected this afternoon.
* 25-45% probability of thunderstorms across interior NorCal
today. Main threats will be lightning, brief heavy rain, small
hail, funnel clouds and gusty winds. Best chances are now through
7 PM PDT.
* Wednesday-Thursday: A very weak system enters the region, with
just some light showers over the higher elevations of the
northern Sierra. Little to no impacts are expected.
* Drier and warmer weather returns late week into the weekend with
periods of breezy north to east winds.
.Changes from previous forecast...
* Thunderstorm potential has increased for today.
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