2 advisories are in effect for Nevada County, CA. The most serious is a winter weather advisory.
Since 2016 the National Weather Service has issued about 185 alerts that included Nevada County, roughly 19 a year. The most common is the flood advisory (81 from 2016 to 2025). The last tornado warning was issued on April 1, 2025. 1 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Lassen Volcanic National Park; Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 ft Including Highway 50; Sierra Nevada of Calavera…Until · NWS Sacramento CA
WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST MONDAY
Full alert text
* WHAT...Snow is expected for elevations above 6000 feet. Total snow
accumulations 2 to 6 inches, with up to 14 inches near Lassen Park.
Winds gusting as high as 40 mph.
* WHERE...Northern Sierra above 6000 feet, including Highway 50,
Interstate 80, State Route 4, State Route 108, Southern Cascades
above 6000 feet, including Lassen National Park.
* WHEN...From 4 PM Sunday to 10 PM PST Monday.
* IMPACTS...The hazardous conditions will impact Sunday evening
travelers, as well as the Monday morning and evening commutes.
* ADDITIONAL DETAILS...Snow levels 6500 to 7500 feet Sunday, dropping
to around 5000 to 6000 Monday. Heaviest snow is expected late
Sunday night into Monday morning. Lull in activity expected on
Tuesday, followed by a colder, stronger system by mid-week.
What to do: Check the latest road conditions from Caltrans online at
quickmap.dot.ca.gov or dial 5 1 1.
Greater Lake Tahoe Area; Greater Lake Tahoe AreaUntil · NWS Reno NV
WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM SUNDAY TO 7 PM PST MONDAY FOR THE TAHOE BASIN ABOVE 7000 FEET
Full alert text
* WHAT...Snow. Snow accumulations of 3 to 7 inches above 7000 feet,
highest west of Highway 89. Up to 1 inch of snow around lake level.
Ridgetop winds gusting as high as 70 mph.
* WHERE...Greater Lake Tahoe Area above 7000 feet.
* WHEN...From 10 PM Sunday to 7 PM PST Monday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions will impact the Monday morning and evening commutes.
Strong winds could cause damage to trees and power lines.
What to do: Slow down and use caution while traveling. The latest road conditions
for the state you are calling from can be obtained by calling 5 1 1.
Check with Caltrans and NDOT for the latest road conditions.
Map data: NWS, OpenFreeMap, OpenStreetMap
Recent alerts in Nevada County
Issued
Alert
Area
Nov 14, 1:55 PM EST
Winter Weather Advisory
Lassen Volcanic National Park; Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dor
Nov 14, 1:51 PM EST
Winter Weather Advisory
Greater Lake Tahoe Area; Greater Lake Tahoe Area
Nevada County alert history
Alert events that included Nevada County or its forecast zones, from the NWS warning archive.
1 tornadoes have been recorded in Nevada County since 1950. That ranks 44 of 58 counties in California. The most recent was on October 22, 2012 (rated EF1).