Weather alerts in Lassen County, California

1,843 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lassen County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts: 1,843
Warnings: 568
Watches: 399
Advisories: 653
Busiest year: 2017129 alerts
Average year: 54over 34 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	151
Tornado Warning	2
Severe Thunderstorm Watch	1
Mesoscale Discussion	31
Special Weather Statement	192
Flooding
Areal Flood Warning	22
Flash Flood Warning	53
River Flood Warning	4
Flash Flood Watch	22
Flood Watch	33
River Flood Watch	1
Areal Flood Advisory	73
River Flood Advisory	2
Winter
Blizzard Warning	2
Heavy Snow Warning	2
Winter Storm Warning	111
Winter Storm Watch	132
Freezing Rain Advisory	2
Snow Advisory	31
Snow and Blowing Snow Advisory	3
Winter Weather Advisory	207
Heat
Excessive Heat Warning	3
Excessive Heat Watch	4
Extreme Heat Watch	1
Heat Advisory	14
Cold
Freeze Warning	14
Freeze Watch	13
Wind and dust
High Wind Warning	36
High Wind Watch	41
Blowing Dust Advisory	2
Dust Storm Advisory	1
Lake Wind Advisory	127
Wind Advisory	131
Fire
Red Flag Warning	168
Fire Weather Watch	151
Fog and smoke
Air Stagnation Advisory	1
Dense Fog Advisory	9
Dense Smoke Advisory	17
Freezing Fog Advisory	33

The latest warnings

The most recent on file, newest first.

Issued	Product	Office	Lasted
Sep 11, 10:18 AM PDT	Red Flag Warning	REV	38 hr
Aug 31, 11:42 AM PDT	Red Flag Warning	REV	35 hr
Aug 21, 7:37 AM PDT	Red Flag Warning	REV	39 hr
Jul 25, 9:29 AM PDT	Red Flag Warning	REV	36 hr
Jul 23, 10:10 AM PDT	Red Flag Warning	REV	59 hr
Jul 9, 9:53 AM PDT	Red Flag Warning	REV	35 hr
Jun 19, 3:31 PM PDT	Severe Thunderstorm Warning	REV	44 min
Jun 19, 3:07 PM PDT	Severe Thunderstorm Warning	REV	23 min
Jun 18, 1:49 PM PDT	Red Flag Warning	REV	33 hr
Jun 5, 9:29 AM PDT	Red Flag Warning	REV	37 hr
May 24, 1:05 PM PDT	Red Flag Warning	REV	34 hr
Apr 20, 8:56 AM PDT	Winter Storm Warning	STO	51 hr

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.