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Sierra County Alerts
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WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
Updated:November 21, 2024 3:45 am PST

Winter Storm Warning WINTER STORM WARNING  
Sierra County

Effective: Thu, 11/21 3:25am Severity:  Severe 
Updated: November 21, 2024 3:45 am Urgency: Expected
Expires: Thu, 11/21 1:00pm Certainty: Likely

Areas Affected: Lassen-Eastern Plumas-Eastern Sierra Counties - Greater Lake Tahoe Area - Greater Lake Tahoe Area
 
Alert Details:
* WHAT...Heavy snow. Snow accumulations between 1 to 2 feet above
7,000 feet with 2 to 6 inches below 7,000 feet. Ridge winds
gusting as high as 75 mph.

* WHERE...Greater Lake Tahoe Area, and Lassen-Eastern Plumas-Eastern
Sierra Counties.

* WHEN...From 10 AM Friday to 10 PM PST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Friday evening commute. Very
strong winds could cause extensive damage to trees and power lines.

Information:
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.
Winter Storm Warning WINTER STORM WARNING  
Sierra County

Effective: Wed, 11/20 9:20pm Severity:  Severe 
Updated: November 21, 2024 3:45 am Urgency: Expected
Expires: Thu, 11/21 4:00am Certainty: Likely

Areas Affected: Burney Basin / Eastern Shasta County - Western Plumas County/Lassen Park - West Slope Northern Sierra Nevada
 
Alert Details:
* WHAT...Heavy wet snow. Additional snow accumulations 2 to 5
inches. Winds gusting as high as 45 mph.

* WHERE...Burney Basin / Eastern Shasta County, West Slope Northern
Sierra Nevada, and Western Plumas County/Lassen Park Counties.

* WHEN...Until 4 AM PST Thursday.

* IMPACTS...Slick travel conditions expected, with snow covered
roads and chain controls likely. Gusty winds could bring down tree
branches.

* ADDITIONAL DETAILS...Snow levels 5000 to 6500 feet.

Information:
Check the latest road conditions from Caltrans online at
quickmap.dot.ca.gov or dial 5 1 1.
Flood Advisory FLOOD ADVISORY  
Sierra County

Effective: Wed, 11/20 2:18pm Severity: Minor
Updated: November 21, 2024 3:45 am Urgency: Expected
Expires: Sat, 11/23 12:00pm Certainty: Likely

Areas Affected: Lassen, CA - Plumas, CA - Sierra, CA
 
Alert Details:
* WHAT...Minor flooding is forecast for the Susan River, small creeks
and streams, and on or near recent burn scars. This does not include
the Middle Fork of the Feather.

* WHERE...Northeast California including Lassen, eastern Plumas, and
eastern Sierra counties.

* WHEN...Until noon PST Saturday. Flows are expected to rise though
the day Thursday into Friday with peak flows occurring late Friday
to early Saturday morning.

* IMPACTS...Minor flooding along low lying areas near the Susan
River in and downstream of Susanville, as well as near other
creeks, streams, urban areas. Rock and debris may cover roads
especially near or below recent burn areas.

* ADDITIONAL DETAILS...
- At 210 PM PST, Rounds of high elevation snow and heavy rain
are forecast today through Saturday morning before
transitioning to snow.
- Additional rainfall amounts of 3 to 6 inches are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Eagle Lake, Termo, Herlong, Beckwourth, Doyle, Blairsden,
Plumas Eureka State Park, Graeagle, Chilcoot, Bieber,
Sierraville, Nubieber, Stampede Reservoir, Verdi, Susanville,
Standish, Janesville, Aspen Grove Campground, Antelope Lake
and Spaulding.
- http://www.weather.gov/safety/flood
For river forecast updates, visit cnrfc.noaa.gov

Information:
Sand bagging maybe required to protect low lying property along the
Susan River and small creeks and streams.

Be aware of you surroundings, don't drive on flooded roads.