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Updated:November 21, 2024 2:15 am PST

Winter Storm Warning WINTER STORM WARNING  
Nevada County

  Effective: Wed, 11/20 9:20pm Severity:  Severe 
  Updated: November 21, 2024 2:15 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.
Lake Wind Advisory LAKE WIND ADVISORY  
Nevada County

  Effective: Wed, 11/20 7:23pm Severity:  Moderate 
  Updated: November 21, 2024 2:15 am Urgency: Expected
  Expires: Thu, 11/21 4:00am Certainty: Likely

Areas Affected: Greater Lake Tahoe Area - Greater Lake Tahoe Area
 
Alert Details:
* WHAT...Southwest winds 15 to 20 mph with gusts up to 35 mph and
waves 2 to 3 feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...Until 4 AM PST Thursday.

* IMPACTS...Small boats, kayaks and paddle boards will be prone to
capsizing and should remain off lake waters until conditions
improve.

Information:
Check lake conditions before heading out and be prepared for a
sudden increase in winds and wave heights. Consider postponing
boating activities on the lake until a day with less wind.
Wind Advisory WIND ADVISORY  
Nevada County

  Effective: Wed, 11/20 9:50pm Severity:  Moderate 
  Updated: November 21, 2024 2:15 am Urgency: Expected
  Expires: Thu, 11/21 7:00am Certainty: Likely

Areas Affected: Northern Sacramento Valley - Central Sacramento Valley - Northeast Foothills/Sacramento Valley
 
Alert Details:
* WHAT...Southeast winds 15 to 25 mph with gusts 35 to 45 mph.

* WHERE...Central and Northern Sacramento Valley and Northeast
Foothills

* WHEN...Until 7 AM PST Thursday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

Information:
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Secure outdoor objects.
Flood Watch FLOOD WATCH  
Nevada County

  Effective: Thu, 11/21 1:08am Severity:  Severe 
  Updated: November 21, 2024 2:15 am Urgency: Future
  Expires: Thu, 11/21 4:00pm Certainty: Possible

Areas Affected: Shasta Lake Area / Northern Shasta County - Northern Sacramento Valley - Central Sacramento Valley - Mountains Southwestern Shasta County to Western Colusa County - Northeast Foothills/Sacramento Valley
 
Alert Details:
* WHAT...Prolonged periods of moderate to heavy rain with amounts of
3 to 6 inches expected, and up to 8 to 12 inches possible in the
foothills. Flooding caused by excessive rainfall is possible.

* WHERE...A portion of northern California, including the following
areas, Northern and Central Sacramento Valley, Mountains
Southwestern Shasta County to Western Colusa County, Northeast
Foothills/Sacramento Valley, and Shasta Lake Area / Northern
Shasta County.

* WHEN...Through 4 AM PST Saturday morning.

* IMPACTS...Excessive runoff may result in sharp rises of rivers,
creeks, and streams, and ponding of water or flooding on roadways
and other low-lying locations.

* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood

Information:
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.