595
WWUS46 KSTO 231932
WSWSTO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
1132 AM PST Tue Dec 23 2025

CAZ068-069-250015-
/O.CON.KSTO.WS.W.0011.251224T0600Z-251227T0600Z/
Western Plumas County/Lassen Park-West Slope Northern Sierra
Nevada-
Including the cities of Blue Canyon, Quincy, and Chester
1132 AM PST Tue Dec 23 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 PM PST FRIDAY...

* WHAT...Heavy snow expected. Accumulations up to a foot between
  4500 to 5500 feet. 4 to 8 feet, with locally higher amounts above
  5500 feet. Wind gusts up to 60 mph.

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

* WHEN...From 10 PM this evening to 10 PM PST Friday.

* IMPACTS...Dangerous travel conditions with chain controls and road
  closures. Localized tree damage, power outages, and low visibility
  due to the combination of heavy wet snow and strong winds.

* ADDITIONAL DETAILS...Snow accumulations will remain near or above
  pass level through Tuesday, then drop to around 4500 to 5500 feet
  during the day Wednesday through Friday. Snowfall rates of 1 to 2
  inches per hour at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ013-014-063-250015-
/O.CON.KSTO.WS.W.0011.251225T0000Z-251227T0600Z/
Shasta Lake Area / Northern Shasta County-Burney Basin / Eastern
Shasta County-Mountains Southwestern Shasta County to Western
Colusa County-
Including the cities of Shasta Dam, Burney, and Alder Springs
1132 AM PST Tue Dec 23 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM WEDNESDAY TO 10
PM PST FRIDAY...

* WHAT...Heavy snow expected. Snow accumulations of 1 to 3 feet
  above 4500 feet, with locally higher amounts at peaks. Up to 1
  foot between 3500 to 4500 feet. Wind gusts up to 60 mph.

* WHERE...Burney Basin / Eastern Shasta County, Mountains
  Southwestern Shasta County to Western Colusa County, and Shasta
  Lake Area / Northern Shasta County Counties.

* WHEN...From 4 PM Wednesday to 10 PM PST Friday.

* IMPACTS...Dangerous travel conditions with chain controls and road
  closures. Localized tree damage, power outages, and low visibility
  due to the combination of heavy wet snow and strong winds.

* ADDITIONAL DETAILS...Snow levels will be above 5000 feet
  Wednesday, then drop to 3500 feet by Thursday night. Snowfall
  rates up to an inch per hour at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

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

JS