Alert archive / California

Weather alerts in California, 1986

87 weather alerts in 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

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

Alerts
87
Warnings
87
Watches
0
Advisories
0
Busiest month
February63 alerts
Busiest day
February 18, 198624 alerts

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 14, 5:15 PM PSTFlash Flood WarningSTOTehama4 hr
Feb 14, 7:45 PM PSTFlash Flood WarningLOXLos Angeles, Ventura2 hr
Feb 14, 10:00 PM PSTFlash Flood WarningLOXLos Angeles, Ventura2 hr
Feb 14, 11:30 PM PSTFlash Flood WarningMTRMarin, Sonoma9 hr
Feb 14, 11:30 PM PSTFlash Flood WarningMTRNapa9 hr
Feb 15, 12:35 AM PSTFlash Flood WarningSTOButte, Glenn, Tehama8 hr
Feb 16, 5:00 PM PSTFlash Flood WarningMTRNapa, Sonoma8 hr
Feb 16, 5:00 PM PSTFlash Flood WarningMTRMarin8 hr
Feb 17, 4:00 AM PSTFlash Flood WarningSTOTehama8 hr
Feb 17, 10:00 AM PSTFlash Flood WarningSTOTehama14 hr
Feb 17, 10:20 AM PSTFlash Flood WarningMTRMarin, Sonoma14 hr
Feb 17, 10:20 AM PSTFlash Flood WarningMTRNapa14 hr
Feb 17, 11:00 AM PSTFlash Flood WarningSTOShasta13 hr
Feb 17, 11:15 AM PSTFlash Flood WarningSTOTrinity13 hr
Feb 17, 12:30 PM PSTFlash Flood WarningMTRSan Mateo, Santa Clara, Santa Cruz12 hr
Feb 17, 12:30 PM PSTFlash Flood WarningSTONevada, Placer, Sierra, Yuba12 hr
Feb 17, 12:30 PM PSTFlash Flood WarningSTOAlpine, Amador, Calaveras, El Dorado12 hr
Feb 17, 12:30 PM PSTFlash Flood WarningSTOTuolumne12 hr
Feb 17, 1:30 PM PSTFlash Flood WarningSTONevada, Placer, Sierra, Yuba11 hr
Feb 17, 1:30 PM PSTFlash Flood WarningSTOAlpine, Amador, Calaveras, El Dorado, Sacramento, San Joaquin11 hr
Feb 17, 1:30 PM PSTFlash Flood WarningSTOStanislaus, Tuolumne11 hr
Feb 17, 1:30 PM PSTFlash Flood WarningSTOColusa, Yolo11 hr
Feb 17, 1:30 PM PSTFlash Flood WarningSTOSolano11 hr
Feb 17, 2:40 PM PSTFlash Flood WarningMTRAlameda, Contra Costa9 hr
Feb 17, 5:00 PM PSTFlash Flood WarningSTOTehama7 hr
Feb 17, 6:30 PM PSTFlash Flood WarningSTOPlumas12 hr
Feb 17, 7:00 PM PSTFlash Flood WarningMTRSan Mateo, Santa Clara, Santa Cruz14 hr
Feb 17, 7:00 PM PSTFlash Flood WarningMTRMarin14 hr
Feb 17, 7:00 PM PSTFlash Flood WarningMTRMonterey14 hr
Feb 17, 7:00 PM PSTFlash Flood WarningMTRAlameda, Contra Costa14 hr
Feb 17, 7:00 PM PSTFlash Flood WarningMTRNapa, Sonoma14 hr
Feb 17, 8:30 PM PSTFlash Flood WarningSTONevada, Sierra, Yuba13 hr
Feb 17, 8:30 PM PSTFlash Flood WarningSTOAmador, Calaveras, Sacramento, San Joaquin, Stanislaus13 hr
Feb 17, 8:30 PM PSTFlash Flood WarningSTOAlpine, El Dorado, Placer13 hr
Feb 17, 8:30 PM PSTFlash Flood WarningSTOTuolumne13 hr
Feb 17, 8:30 PM PSTFlash Flood WarningSTOSolano, Yolo13 hr
Feb 17, 8:30 PM PSTFlash Flood WarningSTOColusa, Sutter13 hr
Feb 17, 9:00 PM PSTFlash Flood WarningEKALake12 hr
Feb 17, 9:00 PM PSTFlash Flood WarningSTOShasta, Tehama, Trinity12 hr
Feb 17, 9:00 PM PSTFlash Flood WarningSTOButte, Glenn12 hr
Feb 17, 9:00 PM PSTFlash Flood WarningSTOLassen, Plumas12 hr
Feb 17, 11:00 PM PSTFlash Flood WarningHNXFresno, Madera10 hr
Feb 17, 11:00 PM PSTFlash Flood WarningHNXMariposa10 hr
Feb 18, 9:00 AM PSTFlash Flood WarningSTOColusa, Placer, Sacramento, Sutter, Yolo, Yuba9 hr
Feb 18, 9:00 AM PSTFlash Flood WarningSTOAlpine, Amador, Calaveras, El Dorado, San Joaquin9 hr
Feb 18, 9:00 AM PSTFlash Flood WarningSTOStanislaus, Tuolumne9 hr
Feb 18, 9:00 AM PSTFlash Flood WarningSTONevada, Plumas, Sierra9 hr
Feb 18, 9:00 AM PSTFlash Flood WarningSTOSolano9 hr
Feb 18, 5:30 PM PSTFlash Flood WarningSTOAmador, Sacramento, San Joaquin13 hr
Feb 18, 5:30 PM PSTFlash Flood WarningSTONevada, Placer13 hr
Feb 18, 5:30 PM PSTFlash Flood WarningSTOSolano, Yolo13 hr
Feb 18, 5:30 PM PSTFlash Flood WarningSTOEl Dorado13 hr
Feb 18, 6:30 PM PSTFlash Flood WarningEKAMendocino10 hr
Feb 18, 9:00 PM PSTFlash Flood WarningMTRSanta Clara, Santa Cruz9 hr
Feb 19, 3:00 AM PSTFlash Flood WarningSTOAlpine, Amador, Calaveras, El Dorado6 hr
Feb 19, 3:00 AM PSTFlash Flood WarningSTOTuolumne6 hr
Feb 19, 3:00 AM PSTFlash Flood WarningSTOPlacer6 hr
Feb 19, 3:30 AM PSTFlash Flood WarningMTRAlameda, Contra Costa, Santa Clara6 hr
Feb 19, 3:30 AM PSTFlash Flood WarningMTRMarin, Napa, Sonoma6 hr
Feb 19, 3:30 AM PSTFlash Flood WarningMTRSan Mateo, Santa Cruz6 hr
Feb 19, 4:40 AM PSTFlash Flood WarningLOXSanta Barbara, Ventura3 hr
Feb 19, 5:40 PM PSTFlash Flood WarningHNXMadera3 hr
Feb 20, 8:30 PM PSTFlash Flood WarningSTOYuba10 hr
Mar 7, 11:16 AM PSTFlash Flood WarningEKAMendocino5 hr
Mar 8, 9:55 AM PSTFlash Flood WarningSTOEl Dorado, Placer6 hr
Mar 8, 9:55 AM PSTFlash Flood WarningSTOCalaveras, Tuolumne6 hr
Mar 8, 9:55 AM PSTFlash Flood WarningSTOAmador6 hr
Mar 8, 4:00 PM PSTFlash Flood WarningSTOTehama15 hr
Mar 10, 4:00 PM PSTTornado WarningHNXFresno, Kings, Tulare2 hr
May 30, 4:15 AM PDTSevere Thunderstorm WarningHNXKern60 min
May 30, 4:15 AM PDTSevere Thunderstorm WarningLOXSan Bernardino60 min
May 31, 5:15 PM PDTSevere Thunderstorm WarningSTONevada, Placer33 min
Aug 9, 3:52 PM PDTFlash Flood WarningLOXRiverside2 hr
Aug 9, 3:52 PM PDTFlash Flood WarningLOXSan Bernardino2 hr
Aug 18, 4:20 PM PDTFlash Flood WarningLOXRiverside2 hr
Sep 24, 1:27 PM PDTSevere Thunderstorm WarningSTOButte, Tehama63 min
Sep 24, 2:08 PM PDTSevere Thunderstorm WarningSTOButte52 min
Sep 24, 2:31 PM PDTTornado WarningSTOButte59 min
Sep 24, 2:54 PM PDTSevere Thunderstorm WarningSTOEl Dorado, Placer, Sacramento66 min
Sep 24, 2:54 PM PDTSevere Thunderstorm WarningSTOSutter, Yuba66 min
Sep 24, 3:43 PM PDTTornado WarningSTOButte47 min
Sep 24, 6:12 PM PDTTornado WarningSTOCalaveras, Tuolumne63 min
Sep 25, 3:45 PM PDTSevere Thunderstorm WarningSTOButte90 min
Sep 25, 5:15 PM PDTSevere Thunderstorm WarningSTOButte60 min
Oct 2, 4:00 PM PDTSevere Thunderstorm WarningLOXLos Angeles90 min
Dec 8, 7:30 AM PSTFlash Flood WarningHNXMariposa8 hr
Dec 8, 9:20 AM PSTFlash Flood WarningHNXMadera6 hr

By product

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

ProductAlerts
Severe storms
Severe Thunderstorm Warning10
Tornado Warning4
Flooding
Flash Flood Warning73

By county

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

5 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. February 18, 198624alerts
  2. February 17, 198618alerts
  3. February 19, 198613alerts
  4. February 15, 19866alerts
  5. September 24, 19866alerts
  6. March 8, 19863alerts
  7. May 30, 19862alerts
  8. August 9, 19862alerts
  9. September 25, 19862alerts
  10. December 8, 19862alerts
  11. February 20, 19861alerts
  12. February 21, 19861alerts

Nearby

Alerts in force nowTornadoes on recordThe radar archive1987

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.