Alert archive / California / 2018

Weather alerts in California, September 2018

135 weather alerts in September 2018, 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 September 2018. Tap one for its archive.

Alerts
135
Warnings
24
Watches
16
Advisories
73
Busiest day
September 4, 201813 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

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
Sep 1, 2:19 AM PDTGale WarningMTR24 hr
Sep 1, 5:07 AM PDTFire Weather WatchEKA8 hr
Sep 1, 6:42 AM PDTWind AdvisoryLOX2 hr
Sep 1, 1:03 PM PDTRed Flag WarningEKA16 hr
Sep 1, 2:01 PM PDTWind AdvisoryLOX13 hr
Sep 2, 2:40 AM PDTSmall Craft AdvisoryMTR3 days
Sep 2, 4:44 AM PDTRed Flag WarningEKA30 hr
Sep 3, 2:12 AM PDTHazardous Seas WarningEKA40 hr
Sep 4, 1:28 PM PDTSpecial Weather StatementHNXMariposa47 min
Sep 4, 2:20 PM PDTSpecial Weather StatementHNX40 min
Sep 4, 2:42 PM PDTSpecial Weather StatementHNXTulare48 min
Sep 4, 3:05 PM PDTSpecial Weather StatementHNXMariposa40 min
Sep 4, 3:15 PM PDTSpecial Weather StatementHNXTulare45 min
Sep 4, 3:20 PM PDTFlash Flood WarningSTOAlpine, Tuolumne3 hr
Sep 4, 3:28 PM PDTSpecial Weather StatementHNXKern47 min
Sep 4, 3:47 PM PDTSpecial Weather StatementHNXTuolumne43 min
Sep 4, 4:02 PM PDTSpecial Weather StatementHNX43 min
Sep 4, 4:17 PM PDTSpecial Weather StatementHNXKern43 min
Sep 4, 4:20 PM PDTSpecial Weather StatementHNXTuolumne40 min
Sep 4, 4:38 PM PDTSpecial Weather StatementHNXMariposa52 min
Sep 4, 4:47 PM PDTSpecial Weather StatementHNX43 min
Sep 4, 5:08 PM PDTSpecial Weather StatementHNXMariposa52 min
Sep 4, 5:09 PM PDTAreal Flood AdvisoryVEFInyo2 hr
Sep 4, 5:12 PM PDTSpecial Weather StatementHNX48 min
Sep 4, 5:27 PM PDTAreal Flood AdvisoryVEFInyo3 hr
Sep 4, 6:01 PM PDTSmall Craft AdvisoryEKA23 hr
Sep 4, 6:02 PM PDTSpecial Weather StatementHNXMariposa43 min
Sep 4, 7:15 PM PDTAreal Flood AdvisoryVEFInyo3 hr
Sep 5, 3:03 AM PDTSmall Craft AdvisoryMTR15 days
Sep 5, 8:52 PM PDTSmall Craft AdvisoryMTR2 hr
Sep 6, 2:14 AM PDTSmall Craft AdvisoryEKA6 days
Sep 6, 2:33 AM PDTSmall Craft AdvisoryMTR15 days
Sep 6, 3:08 AM PDTExcessive Heat WatchPSRImperial, Riverside, San Bernardino23 hr
Sep 6, 9:17 PM PDTSmall Craft AdvisoryLOX6 hr
Sep 7, 2:19 AM PDTExcessive Heat WarningPSRImperial, Riverside, San Bernardino42 hr
Sep 7, 3:05 AM PDTSmall Craft AdvisoryLOX13 days
Sep 7, 3:06 AM PDTSmall Craft AdvisoryMTR35 hr
Sep 7, 7:48 PM PDTHeat AdvisoryLOXLos Angeles24 hr
Sep 8, 1:42 AM PDTDense Fog AdvisoryLOX7 hr
Sep 8, 2:27 AM PDTSmall Craft AdvisoryMTR5 days
Sep 8, 9:33 AM PDTBeach Hazards StatementLOXLos Angeles64 hr
Sep 8, 8:30 PM PDTDense Fog AdvisorySGXOrange, San Diego13 hr
Sep 8, 8:31 PM PDTDense Fog AdvisoryLOX12 hr
Sep 9, 2:59 AM PDTSmall Craft AdvisoryLOX17 hr
Sep 9, 2:02 PM PDTSmall Craft AdvisoryMTR31 hr
Sep 9, 3:01 PM PDTFire Weather WatchREVEl Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more20 hr
Sep 10, 10:22 AM PDTRed Flag WarningSTO61 hr
Sep 10, 11:10 AM PDTRed Flag WarningREVEl Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more66 hr
Sep 10, 1:38 PM PDTFrost AdvisoryMFRModoc, Siskiyou19 hr
Sep 10, 1:38 PM PDTFreeze WatchMFRModoc, Siskiyou22 hr
Sep 10, 2:39 PM PDTLake Wind AdvisoryREVAlpine, El Dorado, Nevada, Placer53 hr
Sep 11, 2:12 AM PDTSmall Craft AdvisoryMTR43 hr
Sep 11, 2:59 AM PDTSmall Craft AdvisoryLOX3 days
Sep 11, 4:02 AM PDTRed Flag WarningEKA21 hr
Sep 11, 12:05 PM PDTFrost AdvisoryMFRModoc, Siskiyou21 hr
Sep 11, 2:06 PM PDTFrost AdvisoryEKAMendocino, Trinity18 hr
Sep 11, 2:27 PM PDTRed Flag WarningVEFInyo, Tulare4 days
Sep 12, 1:35 PM PDTFreeze WatchMFRModoc, Siskiyou13 hr
Sep 12, 2:41 PM PDTSmall Craft AdvisoryMTR30 hr
Sep 12, 6:24 PM PDTDust Storm AdvisoryPSRImperial96 min
Sep 13, 2:19 AM PDTFreeze WarningMFRModoc, Siskiyou31 hr
Sep 13, 1:46 PM PDTFreeze WatchMFRModoc, Siskiyou25 hr
Sep 13, 2:50 PM PDTSmall Craft AdvisoryMTR36 hr
Sep 14, 3:12 AM PDTSmall Craft AdvisoryLOX72 hr
Sep 14, 11:15 AM PDTBeach Hazards StatementSGXOrange33 hr
Sep 14, 2:11 PM PDTSmall Craft AdvisoryMTR31 hr
Sep 14, 2:31 PM PDTLake Wind AdvisoryREVAlpine, El Dorado, Nevada, Placer29 hr
Sep 14, 2:39 PM PDTFreeze WarningMFRModoc, Siskiyou18 hr
Sep 14, 9:18 PM PDTSmall Craft AdvisoryMTR102 min
Sep 15, 2:46 AM PDTSmall Craft AdvisoryMTR42 hr
Sep 16, 2:28 AM PDTSmall Craft AdvisoryMTR5 days
Sep 16, 2:48 AM PDTSmall Craft AdvisoryLOX18 hr
Sep 17, 2:46 AM PDTSmall Craft AdvisoryLOX24 hr
Sep 17, 2:50 AM PDTSmall Craft AdvisoryMTR44 hr
Sep 17, 3:26 AM PDTSmall Craft AdvisoryEKA5 days
Sep 18, 2:15 AM PDTSmall Craft AdvisoryMTR49 hr
Sep 18, 2:38 AM PDTSmall Craft AdvisoryLOX23 hr
Sep 18, 12:05 PM PDTFire Weather WatchSTO23 hr
Sep 18, 12:32 PM PDTFire Weather WatchMTR23 hr
Sep 19, 2:03 AM PDTSmall Craft AdvisoryLOX25 hr
Sep 19, 2:13 AM PDTSmall Craft AdvisoryMTR19 hr
Sep 19, 11:15 AM PDTRed Flag WarningSTO32 hr
Sep 19, 11:37 AM PDTRed Flag WarningMTRSan Mateo, Santa Clara, Santa Cruz29 hr
Sep 19, 10:11 PM PDTAreal Flood AdvisoryVEFSan Bernardino2 hr
Sep 21, 2:42 AM PDTSmall Craft AdvisoryMTR4 days
Sep 21, 1:59 PM PDTSmall Craft AdvisoryMTR67 hr
Sep 21, 8:52 PM PDTSmall Craft AdvisoryEKA3 days
Sep 22, 3:04 AM PDTGale WatchEKA12 hr
Sep 22, 3:07 AM PDTSmall Craft AdvisoryMTR11 hr
Sep 22, 9:35 AM PDTFire Weather WatchMTR24 hr
Sep 22, 12:48 PM PDTFire Weather WatchSTO24 hr
Sep 22, 2:35 PM PDTSmall Craft AdvisoryLOX36 hr
Sep 22, 3:06 PM PDTGale WarningEKA54 hr
Sep 22, 5:38 PM PDTSmall Craft AdvisoryLOX9 hr
Sep 23, 4:09 AM PDTFire Weather WatchMFRSiskiyou6 hr
Sep 23, 9:09 AM PDTSmall Craft AdvisoryLOX18 hr
Sep 23, 9:49 AM PDTRed Flag WarningMFRSiskiyou49 hr
Sep 23, 10:43 AM PDTRed Flag WarningEKA23 hr
Sep 23, 12:41 PM PDTRed Flag WarningSTO52 hr
Sep 23, 1:46 PM PDTSmall Craft AdvisoryMTR7 hr
Sep 24, 3:21 AM PDTRed Flag WarningMTR38 hr
Sep 24, 9:32 AM PDTSmall Craft AdvisoryEKA11 hr
Sep 24, 9:08 PM PDTSmall Craft AdvisoryEKA18 hr
Sep 24, 9:08 PM PDTHazardous Seas WarningEKA18 hr
Sep 25, 1:07 AM PDTRed Flag WarningEKA18 hr
Sep 25, 2:51 PM PDTSmall Craft AdvisoryEKA11 hr
Sep 26, 2:47 PM PDTFire Weather WatchREVEl Dorado, Lassen, Modoc, Nevada, Placer, Sierra38 hr
Sep 26, 6:12 PM PDTSmall Craft AdvisoryMTR4 hr
Sep 26, 6:12 PM PDTSmall Craft AdvisoryMTR28 hr
Sep 27, 8:33 AM PDTSmall Craft AdvisoryLOX18 hr
Sep 27, 1:16 PM PDTBeach Hazards StatementLOXLos Angeles39 hr
Sep 27, 1:44 PM PDTBeach Hazards StatementSGXOrange, San Diego5 days
Sep 27, 2:58 PM PDTFire Weather WatchMFRModoc20 hr
Sep 28, 2:36 AM PDTLake Wind AdvisoryREVAlpine, El Dorado, Nevada, Placer50 hr
Sep 28, 5:10 AM PDTRed Flag WarningREVEl Dorado, Nevada, Placer, Sierra39 hr
Sep 28, 11:50 AM PDTHigh Surf AdvisoryLOXLos Angeles4 days
Sep 28, 12:00 PM PDTHigh Surf AdvisorySGXOrange4 days
Sep 28, 1:03 PM PDTSmall Craft AdvisoryMTR9 hr
Sep 28, 2:01 PM PDTFlash Flood WatchPSRImperial, Riverside, San Bernardino5 days
Sep 28, 2:20 PM PDTFlash Flood WatchVEFInyo, San Bernardino4 days
Sep 29, 2:27 AM PDTSmall Craft AdvisoryEKA18 hr
Sep 29, 3:21 AM PDTWind AdvisoryLOX7 hr
Sep 29, 3:59 AM PDTBeach Hazards StatementLOX3 days
Sep 30, 12:28 PM PDTDust Storm AdvisoryPSRImperial47 min
Sep 30, 12:58 PM PDTSevere Thunderstorm WarningPSRImperial32 min
Sep 30, 1:10 PM PDTAreal Flood AdvisoryPSRImperial2 hr
Sep 30, 1:19 PM PDTDust Storm AdvisoryPSRImperial, Riverside41 min
Sep 30, 2:12 PM PDTDust Storm AdvisoryPSRImperial, Riverside48 min
Sep 30, 2:38 PM PDTSpecial Weather StatementPSRImperial37 min
Sep 30, 2:51 PM PDTAreal Flood AdvisoryPSRImperial, Riverside114 min
Sep 30, 2:55 PM PDTDust Storm AdvisoryPSRImperial, Riverside65 min
Sep 30, 3:01 PM PDTDust Storm AdvisoryPSRRiverside44 min
Sep 30, 3:25 PM PDTSpecial Weather StatementPSRImperial50 min
Sep 30, 3:26 PM PDTBlowing Dust AdvisoryPSRImperial, Riverside4 hr
Sep 30, 3:54 PM PDTDust Storm WarningPSRRiverside36 min

By product

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

By county

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

Nearby

Alerts in force nowTornadoes on recordThe radar archive20172019

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.