Alert archive / California / Alpine County

Weather alerts in Alpine County, California, 2026

48 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Alpine County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts: 48
Warnings: 6
Watches: 6
Advisories: 23
Busiest month: August9 alerts
Busiest day: August 12, 20265 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Alpine County, 2026

	Warnings	With a report	False alarm ratio
Tornado warnings	0
Severe thunderstorm warnings	1	0	100%
Flash flood warnings	0

Each office's whole area, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Sacramento, CA: tornado warnings	2	1	50%	1	100%	0 min
NWS Sacramento, CA: severe thunderstorm warnings	39	2	95%	6	33%	8 min
NWS Sacramento, CA: flash flood warnings	1	0	100%	6	0%

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 1, 12:16 PM PST	Winter Storm Warning	REV	4 days
Jan 2, 12:48 PM PST	Winter Weather Advisory	REV	3 days
Jan 7, 1:01 AM PST	Lake Wind Advisory	REV	33 hr
Feb 7, 11:07 AM PST	Winter Weather Advisory	REV	4 days
Feb 13, 11:02 AM PST	Winter Storm Watch	REV	25 hr
Feb 14, 11:51 AM PST	Winter Storm Warning	REV	4 days
Feb 17, 1:43 PM PST	Winter Weather Advisory	REV	56 hr
Feb 23, 1:04 PM PST	Lake Wind Advisory	REV	13 hr
Feb 24, 1:40 AM PST	Wind Advisory	REV	22 hr
Mar 3, 12:16 PM PST	Lake Wind Advisory	REV	34 hr
Mar 29, 10:27 AM PDT	Lake Wind Advisory	REV	36 hr
Mar 30, 1:04 PM PDT	Winter Weather Advisory	REV	67 hr
Mar 31, 1:26 AM PDT	Wind Advisory	REV	58 hr
Apr 8, 1:27 PM PDT	Winter Storm Watch	REV	43 hr
Apr 10, 8:21 AM PDT	Winter Storm Warning	REV	63 hr
Apr 14, 12:37 AM PDT	Lake Wind Advisory	REV	49 hr
Apr 19, 9:11 AM PDT	Winter Storm Watch	STO	24 hr
Apr 19, 9:20 AM PDT	Winter Storm Watch	REV	25 hr
Apr 19, 12:07 PM PDT	Lake Wind Advisory	REV	34 hr
Apr 20, 8:56 AM PDT	Winter Storm Warning	STO	51 hr
Apr 20, 10:41 AM PDT	Winter Weather Advisory	REV	49 hr
May 3, 12:44 PM PDT	Special Weather Statement	REV	46 min
May 3, 12:57 PM PDT	Special Weather Statement	REV	48 min
May 15, 10:12 AM PDT	Lake Wind Advisory	REV	67 hr
May 24, 2:25 PM PDT	Lake Wind Advisory	REV	63 hr
Jun 7, 9:22 AM PDT	Lake Wind Advisory	REV	38 hr
Jun 12, 7:42 PM PDT	Special Weather Statement	REV	48 min
Jun 13, 6:30 PM PDT	Special Weather Statement	REV	60 min
Jun 14, 4:08 PM PDT	Special Weather Statement	STO	37 min
Jun 18, 4:50 PM PDT	Severe Thunderstorm Warning	STO	40 min
Jun 19, 1:00 PM PDT	Special Weather Statement	REV	2 hr
Jun 19, 1:21 PM PDT	Mesoscale Discussion	SPC	2 hr
Jun 24, 11:45 AM PDT	Lake Wind Advisory	REV	3 days
Jul 20, 12:17 PM PDT	Flood Watch	REV	34 hr
Jul 21, 1:23 PM PDT	Special Weather Statement	REV	112 min
Aug 11, 9:57 AM PDT	Fire Weather Watch	STO	25 hr
Aug 12, 11:04 AM PDT	Red Flag Warning	STO	30 hr
Aug 12, 11:41 AM PDT	Special Weather Statement	REV	109 min
Aug 12, 1:34 PM PDT	Special Weather Statement	REV	101 min
Aug 12, 3:15 PM PDT	Special Weather Statement	REV	2 hr
Aug 12, 4:05 PM PDT	Areal Flood Advisory	REV	3 hr
Aug 13, 11:11 AM PDT	Special Weather Statement	REV	109 min
Aug 13, 12:53 PM PDT	Special Weather Statement	REV	112 min
Aug 31, 1:21 PM PDT	Lake Wind Advisory	REV	3 days
Sep 4, 2:02 AM PDT	Lake Wind Advisory	REV	19 hr
Sep 5, 1:59 PM PDT	Lake Wind Advisory	REV	33 hr
Sep 10, 11:49 AM PDT	Lake Wind Advisory	REV	32 hr
Sep 10, 11:49 AM PDT	Wind Advisory	REV	60 hr

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	1
Mesoscale Discussion	1
Special Weather Statement	12
Flooding
Flood Watch	1
Areal Flood Advisory	1
Winter
Winter Storm Warning	4
Winter Storm Watch	4
Winter Weather Advisory	5
Wind and dust
Lake Wind Advisory	14
Wind Advisory	3
Fire
Red Flag Warning	1
Fire Weather Watch	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2025

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. Warning verification from the Mesonet's Cow. Rebuilt daily.