Alert archive / California / Winter Storm Warnings

Winter Storm Warnings in California, 2023

80 winter storm warnings in 2023. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter storm warnings reaches back to 2005.

Winter Storm Warnings by county

Each county as a circle sized by its count in 2023. Tap one for its archive.

Winter Storm Warnings
80
Busiest month
March30 winter storm warnings
Busiest day
March 8, 20236 winter storm warnings

Over time

By month

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.

IssuedProductOfficeCountiesLasted
Jan 3, 2:56 AM PSTWinter Storm WarningVEFInyo65 hr
Jan 3, 3:12 AM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more70 hr
Jan 3, 3:45 AM PSTWinter Storm WarningSTO3 days
Jan 3, 3:53 AM PSTWinter Storm WarningHNXFresno, Madera, Mariposa, Tulare, Tuolumne66 hr
Jan 3, 2:31 PM PSTWinter Storm WarningEKA25 hr
Jan 3, 10:54 PM PSTWinter Storm WarningLOX39 hr
Jan 3, 11:59 PM PSTWinter Storm WarningMFRSiskiyou18 hr
Jan 4, 2:23 AM PSTWinter Storm WarningSGXSan Bernardino44 hr
Jan 5, 8:46 PM PSTWinter Storm WarningMFRSiskiyou61 hr
Jan 6, 2:34 AM PSTWinter Storm WarningEKA55 hr
Jan 6, 2:37 AM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more5 days
Jan 6, 4:00 AM PSTWinter Storm WarningSTO5 days
Jan 6, 8:38 AM PSTWinter Storm WarningHNXFresno, Madera, Mariposa, Tulare, Tuolumne5 days
Jan 7, 1:08 AM PSTWinter Storm WarningVEFInyo4 days
Jan 8, 12:01 PM PSTWinter Storm WarningEKA20 hr
Jan 8, 1:13 PM PSTWinter Storm WarningMFRSiskiyou21 hr
Jan 9, 10:19 PM PSTWinter Storm WarningEKA14 hr
Jan 12, 1:07 PM PSTWinter Storm WarningSTO4 days
Jan 12, 1:08 PM PSTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne4 days
Jan 12, 3:08 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more4 days
Jan 13, 12:34 AM PSTWinter Storm WarningVEFInyo4 days
Jan 14, 4:09 AM PSTWinter Storm WarningSGXRiverside, San Bernardino72 hr
Jan 17, 12:29 PM PSTWinter Storm WarningSTO40 hr
Jan 28, 1:20 PM PSTWinter Storm WarningSGXRiverside, San Bernardino, San Diego65 hr
Feb 3, 11:58 AM PSTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne58 hr
Feb 3, 12:55 PM PSTWinter Storm WarningSTO56 hr
Feb 3, 1:34 PM PSTWinter Storm WarningREVAlpine, El Dorado, Mono, Nevada, Placer53 hr
Feb 4, 2:17 PM PSTWinter Storm WarningEKA12 hr
Feb 13, 12:42 PM PSTWinter Storm WarningSGXRiverside, San Bernardino, San Diego29 hr
Feb 19, 9:18 PM PSTWinter Storm WarningMFRSiskiyou5 days
Feb 20, 4:47 AM PSTWinter Storm WarningEKADel Norte, Humboldt, Lake, Mendocino, Trinity4 days
Feb 20, 11:48 AM PSTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne5 days
Feb 20, 3:34 PM PSTWinter Storm WarningSTO5 days
Feb 20, 7:47 PM PSTWinter Storm WarningSGXOrange, Riverside, San Bernardino, San Diego5 days
Feb 20, 8:25 PM PSTWinter Storm WarningLOXSan Luis Obispo, Santa Barbara5 days
Feb 22, 10:28 AM PSTWinter Storm WarningHNXKern4 days
Feb 22, 12:53 PM PSTWinter Storm WarningMFRSiskiyou45 hr
Feb 22, 12:56 PM PSTWinter Storm WarningVEFInyo, San Bernardino3 days
Feb 22, 3:39 PM PSTWinter Storm WarningMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more45 hr
Feb 23, 4:12 AM PSTWinter Storm WarningREVMono3 days
Feb 24, 1:33 PM PSTWinter Storm WarningSGXSan Bernardino38 hr
Feb 25, 4:00 AM PSTWinter Storm WarningSTO4 days
Feb 25, 1:32 PM PSTWinter Storm WarningEKADel Norte, Humboldt, Lake, Mendocino, Trinity72 hr
Feb 25, 3:18 PM PSTWinter Storm WarningMFRSiskiyou3 days
Feb 25, 4:19 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more3 days
Feb 26, 2:33 AM PSTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne4 days
Feb 26, 2:17 PM PSTWinter Storm WarningVEFInyo3 days
Feb 27, 12:25 PM PSTWinter Storm WarningSGXRiverside, San Bernardino, San Diego60 hr
Feb 27, 1:45 PM PSTWinter Storm WarningLOXSanta Barbara54 hr
Mar 2, 12:42 PM PSTWinter Storm WarningSTO6 days
Mar 2, 1:05 PM PSTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne4 days
Mar 2, 1:06 PM PSTWinter Storm WarningMFRSiskiyou3 days
Mar 2, 1:36 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more4 days
Mar 2, 2:44 PM PSTWinter Storm WarningEKADel Norte, Humboldt, Lake, Mendocino, Trinity71 hr
Mar 6, 2:08 AM PSTWinter Storm WarningEKADel Norte, Humboldt, Trinity49 hr
Mar 6, 3:40 AM PSTWinter Storm WarningMFRSiskiyou54 hr
Mar 8, 3:08 AM PSTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne7 days
Mar 8, 12:53 PM PSTWinter Storm WarningVEFInyo7 days
Mar 8, 1:21 PM PSTWinter Storm WarningMFRModoc, Siskiyou50 hr
Mar 8, 1:55 PM PSTWinter Storm WarningSTO6 days
Mar 8, 2:09 PM PSTWinter Storm WarningEKATrinity44 hr
Mar 8, 3:11 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more6 days
Mar 9, 4:02 PM PSTWinter Storm WarningEKATrinity18 hr
Mar 18, 12:09 PM PDTWinter Storm WarningSTO47 hr
Mar 18, 2:02 PM PDTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne45 hr
Mar 20, 2:30 AM PDTWinter Storm WarningVEFInyo56 hr
Mar 20, 4:56 AM PDTWinter Storm WarningSGXRiverside, San Bernardino70 hr
Mar 20, 1:25 PM PDTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne58 hr
Mar 20, 1:47 PM PDTWinter Storm WarningLOXLos Angeles, Santa Barbara, Ventura57 hr
Mar 20, 2:17 PM PDTWinter Storm WarningREVMono39 hr
Mar 26, 11:44 AM PDTWinter Storm WarningVEFInyo3 days
Mar 26, 12:19 PM PDTWinter Storm WarningHNXFresno, Kern, Madera, Mariposa, Tulare, Tuolumne3 days
Mar 26, 1:30 PM PDTWinter Storm WarningSTO3 days
Mar 26, 2:03 PM PDTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more63 hr
Mar 26, 2:12 PM PDTWinter Storm WarningEKAHumboldt, Trinity65 hr
Mar 26, 2:48 PM PDTWinter Storm WarningMFRModoc, Siskiyou68 hr
Mar 28, 1:00 PM PDTWinter Storm WarningSGXRiverside, San Bernardino51 hr
Mar 28, 1:24 PM PDTWinter Storm WarningLOXLos Angeles49 hr
Mar 30, 2:23 PM PDTWinter Storm WarningMFRSiskiyou4 days
Dec 18, 12:03 PM PSTWinter Storm WarningHNXFresno, Madera, Mariposa, Tulare, Tuolumne70 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 8, 20236winter storm warnings
  2. March 26, 20236winter storm warnings
  3. January 3, 20235winter storm warnings
  4. January 6, 20235winter storm warnings
  5. March 2, 20235winter storm warnings
  6. March 20, 20235winter storm warnings
  7. February 20, 20234winter storm warnings
  8. February 22, 20234winter storm warnings
  9. January 4, 20233winter storm warnings
  10. January 12, 20233winter storm warnings
  11. February 3, 20233winter storm warnings
  12. February 25, 20233winter storm warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20222024

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.