Alert archive / California / Winter Storm Warnings

Winter Storm Warnings in California, 2015

39 winter storm warnings in 2015. 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 2015. Tap one for its archive.

Winter Storm Warnings
39
Busiest month
December24 winter storm warnings
Busiest day
December 20, 20155 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
Feb 6, 2:54 AM PSTWinter Storm WarningHNX31 hr
Feb 6, 5:11 PM PSTWinter Storm WarningREVAlpine, El Dorado, Nevada, Placer11 hr
Feb 22, 2:34 AM PSTWinter Storm WarningSGXRiverside, San Bernardino42 hr
Feb 27, 1:05 PM PSTWinter Storm WarningSGXRiverside, San Bernardino, San Diego3 days
Apr 5, 2:04 PM PDTWinter Storm WarningMFRSiskiyou46 hr
Apr 6, 3:26 AM PDTWinter Storm WarningSTO45 hr
May 13, 12:04 PM PDTWinter Storm WarningHNX41 hr
May 13, 2:03 PM PDTWinter Storm WarningSTO37 hr
Nov 1, 3:25 AM PSTWinter Storm WarningHNX43 hr
Nov 1, 6:51 AM PSTWinter Storm WarningSTO39 hr
Nov 9, 8:57 AM PSTWinter Storm WarningSTO19 hr
Nov 14, 11:12 PM PSTWinter Storm WarningSTO22 hr
Nov 23, 11:49 AM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more33 hr
Nov 23, 12:57 PM PSTWinter Storm WarningSTO47 hr
Nov 23, 2:23 PM PSTWinter Storm WarningMFRModoc, Siskiyou44 hr
Dec 2, 9:22 AM PSTWinter Storm WarningSTO45 hr
Dec 2, 3:13 PM PSTWinter Storm WarningMFRSiskiyou43 hr
Dec 8, 2:07 PM PSTWinter Storm WarningVEFInyo54 hr
Dec 8, 2:49 PM PSTWinter Storm WarningHNX64 hr
Dec 8, 3:28 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more67 hr
Dec 8, 3:28 PM PSTWinter Storm WarningSTO61 hr
Dec 11, 2:23 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more56 hr
Dec 11, 2:34 PM PSTWinter Storm WarningSTO55 hr
Dec 11, 2:50 PM PSTWinter Storm WarningMFRModoc, Siskiyou55 hr
Dec 12, 1:20 PM PSTWinter Storm WarningHNX31 hr
Dec 12, 2:16 PM PSTWinter Storm WarningVEFInyo32 hr
Dec 17, 8:43 PM PSTWinter Storm WarningSTO43 hr
Dec 17, 11:06 PM PSTWinter Storm WarningMFRSiskiyou17 hr
Dec 19, 11:37 PM PSTWinter Storm WarningEKA16 hr
Dec 20, 1:59 PM PSTWinter Storm WarningHNX50 hr
Dec 20, 2:21 PM PSTWinter Storm WarningSTO43 hr
Dec 20, 3:19 PM PSTWinter Storm WarningMFRModoc18 hr
Dec 20, 3:25 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more42 hr
Dec 21, 9:27 AM PSTWinter Storm WarningMFRModoc7 hr
Dec 22, 9:18 AM PSTWinter Storm WarningMFRSiskiyou63 hr
Dec 22, 1:42 PM PSTWinter Storm WarningSTO56 hr
Dec 22, 1:52 PM PSTWinter Storm WarningREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more61 hr
Dec 22, 8:32 PM PSTWinter Storm WarningHNX55 hr
Dec 23, 3:32 AM PSTWinter Storm WarningEKA50 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. December 20, 20155winter storm warnings
  2. December 8, 20154winter storm warnings
  3. November 23, 20153winter storm warnings
  4. December 11, 20153winter storm warnings
  5. December 22, 20153winter storm warnings
  6. May 13, 20152winter storm warnings
  7. November 1, 20152winter storm warnings
  8. December 2, 20152winter storm warnings
  9. December 12, 20152winter storm warnings
  10. December 18, 20152winter storm warnings
  11. December 23, 20152winter storm warnings
  12. February 6, 20151winter storm warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20142016

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.