WWUS46 KSTO 301911
WSWSTO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
1211 PM PDT Sun Mar 30 2025

CAZ013-063-311445-
/O.EXB.KSTO.WS.W.0009.250331T0300Z-250401T0000Z/
Shasta Lake Area / Northern Shasta County-Mountains Southwestern
Shasta County to Western Colusa County-
Including the cities of Alder Springs and Shasta Dam
1211 PM PDT Sun Mar 30 2025

...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 5 PM PDT
MONDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow
  accumulations 6 to 12 inches, locally up to 2-4 feet over peaks.
  Winds gusting as high as 45 mph.

* WHERE...Mountains Southwestern Shasta County to Western Colusa
  County and Shasta Lake Area / Northern Shasta County County.

* WHEN...From 8 PM this evening to 5 PM PDT Monday.

* IMPACTS...Travel could be very difficult. The hazardous conditions
  could impact the Monday morning and evening commutes. Gusty winds
  could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels fall 4500-5000 feet tonight,
  lowering to around 3500-4000 feet by Monday morning, then falling
  to around 3000 feet by Monday evening into early Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Check the latest road conditions from Caltrans online at
quickmap.dot.ca.gov or dial 5 1 1.

&&

$$

CAZ068-069-311445-
/O.CON.KSTO.WS.W.0009.250331T0000Z-250402T0600Z/
Western Plumas County/Lassen Park-West Slope Northern Sierra
Nevada-
Including the cities of Quincy, Blue Canyon, and Chester
1211 PM PDT Sun Mar 30 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 11 PM PDT TUESDAY ABOVE 3500 FEET...

* WHAT...Heavy snow above 3500 feet. Total snow accumulations 1 to 4
  feet possible, locally up to 5 feet over peaks. Total snow
  accumulations of 6-12 inches between 3500-4000 feet. Winds could
  gust as high as 55-65 mph.

* WHERE...West Slope Northern Sierra Nevada and Western Plumas
  County/Lassen Park.

* WHEN...From 5 PM this afternoon to 11 PM PDT Tuesday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the Monday morning and evening
  commutes. Strong winds could cause tree damage.

* ADDITIONAL DETAILS...Heaviest snowfall expected Monday, with
  snowfall rates up to 2 inches an hour. Snow levels fall 5000-6500
  feet, lowering to around 3000-4000 feet by Monday evening, then
  falling to around 3000 feet by early Tuesday. Light snowfall
  accumulations of 1 to 6 inches are possible down to 3000 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Check the latest road conditions from Caltrans online at
quickmap.dot.ca.gov or dial 5 1 1.

Persons should delay travel if possible. If travel is absolutely
necessary, drive with extreme caution and be prepared for sudden
changes in visibility. Consider taking a winter storm kit along with
you and anything else that would help you survive in case you become
stranded.

&&

$$

For more information, visit us at www.weather.gov/sto/

IDS