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Alert Archives for All California Counties
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28 total alerts issued on this day

Updates Every 15 Minutes
Spacer GifLast Update:August 15, 2026 - 7:00 am PDT
Imperial County   5 alerts
SWA.gif   EXTREME HEAT WATCH  
  Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 14 11:50 pm Expired: Aug 15 3:30 pm Duration: 15 hrs   40 mins  
SVW.gif   EXTREME HEAT WARNING  
  Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 15 10:05 am Expired: Aug 16 3:00 am Duration: 16 hrs   55 mins  
SPS.gif   SPECIAL WEATHER STATEMENT  
At 508 PM PDT, Doppler radar was tracking a strong thunderstorm over
  Areas affected: Imperial County Southwest; Imperial County West
Effective: Aug 15 5:09 pm Expired: Aug 15 5:45 pm Duration: 0 hrs   36 mins  
SVR.gif   SEVERE THUNDERSTORM WARNING   (3 updates)
  Areas affected: Imperial, CA
Effective: Aug 15 5:29 pm Expired: Aug 15 6:00 pm Duration: 0 hrs   31 mins  
SVRPSR
  Areas affected: Imperial, CA
Effective: Aug 15 5:42 pm Expired: Aug 15 6:30 pm Duration: 0 hrs   48 mins  
At 554 PM PDT, a severe thunderstorm was located over Mt. Signal, or
  Areas affected: Imperial, CA
Effective: Aug 15 5:54 pm Expired: Aug 15 6:30 pm Duration: 0 hrs   36 mins  
FLS.gif   FLOOD ADVISORY  
  Areas affected: Imperial, CA
Effective: Aug 15 5:22 pm Expired: Aug 15 8:15 pm Duration: 2 hrs   53 mins  
Riverside County   3 alerts
SWA.gif   EXTREME HEAT WATCH  
  Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 14 11:50 pm Expired: Aug 15 3:30 pm Duration: 15 hrs   40 mins  
SVW.gif   EXTREME HEAT WARNING  
  Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 15 10:05 am Expired: Aug 16 3:00 am Duration: 16 hrs   55 mins  
FFW.gif   FLASH FLOOD WARNING   (3 updates)
FFWPSR
  Areas affected: Riverside, CA
Effective: Aug 15 4:16 pm Expired: Aug 15 7:15 pm Duration: 2 hrs   59 mins  
At 526 PM PDT, Doppler radar indicated thunderstorms have ended
  Areas affected: Riverside, CA
Effective: Aug 15 5:26 pm Expired: Aug 15 7:15 pm Duration: 1 hr   49 mins  
At 615 PM PDT, Doppler radar indicated thunderstorms have ended
  Areas affected: Riverside, CA
Effective: Aug 15 6:15 pm Expired: Aug 15 7:15 pm Duration: 1 hr   00 mins  
San Bernardino County   3 alerts
FLS.gif   FLOOD ADVISORY   (5 updates)
  Areas affected: Mohave, AZ; San Bernardino, CA; Clark, NV
Effective: Aug 14 11:54 pm Expired: Aug 15 1:30 am Duration: 1 hr   36 mins  
  Areas affected: San Bernardino, CA; Clark, NV
Effective: Aug 15 1:08 pm Expired: Aug 15 4:15 pm Duration: 3 hrs   07 mins  
  Areas affected: San Bernardino, CA; Clark, NV
Effective: Aug 15 1:55 pm Expired: Aug 15 4:15 pm Duration: 2 hrs   20 mins  
  Areas affected: San Bernardino, CA
Effective: Aug 15 4:36 pm Expired: Aug 15 6:45 pm Duration: 2 hrs   09 mins  
  Areas affected: Inyo, CA; San Bernardino, CA; Clark, NV; Nye, NV
Effective: Aug 15 6:29 pm Expired: Aug 15 9:00 pm Duration: 2 hrs   31 mins  
SVR.gif   SEVERE THUNDERSTORM WARNING   (4 updates)
SVRVEF
  Areas affected: San Bernardino, CA; Clark, NV
Effective: Aug 15 12:45 pm Expired: Aug 15 1:30 pm Duration: 0 hrs   45 mins  
At 113 PM PDT, a severe thunderstorm was located near Sandy Valley, or 14 miles west of Jean, moving northeast at 15 mph. HAZARD...60 mph wind gusts and dime size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to
  Areas affected: San Bernardino, CA; Clark, NV
Effective: Aug 15 1:13 pm Expired: Aug 15 1:30 pm Duration: 0 hrs   17 mins  
SVRVEF
  Areas affected: San Bernardino, CA
Effective: Aug 15 4:49 pm Expired: Aug 15 5:30 pm Duration: 0 hrs   41 mins  
At 506 PM PDT, A severe thunderstorm was located 8 miles southeast of
  Areas affected: San Bernardino, CA
Effective: Aug 15 5:06 pm Expired: Aug 15 5:30 pm Duration: 0 hrs   24 mins  
FFW.gif   FLASH FLOOD WARNING   (4 updates)
FFWVEF
  Areas affected: San Bernardino, CA; Clark, NV
Effective: Aug 15 3:44 pm Expired: Aug 15 6:45 pm Duration: 3 hrs   01 min  
At 455 PM PDT, Heavy rain continues across eastern parts of Sandy
  Areas affected: San Bernardino, CA; Clark, NV
Effective: Aug 15 4:55 pm Expired: Aug 15 6:45 pm Duration: 1 hr   50 mins  
FFWVEF
  Areas affected: San Bernardino, CA
Effective: Aug 15 4:46 pm Expired: Aug 15 7:45 pm Duration: 2 hrs   59 mins  
At 535 PM PDT, Thunderstorms are ongoing along Amboy road south of
  Areas affected: San Bernardino, CA
Effective: Aug 15 5:35 pm Expired: Aug 15 7:45 pm Duration: 2 hrs   10 mins  
San Diego County   2 alerts
FLS.gif   FLOOD ADVISORY  
  Areas affected: San Diego, CA
Effective: Aug 15 4:38 pm Expired: Aug 15 6:45 pm Duration: 2 hrs   07 mins  
SPS.gif   SPECIAL WEATHER STATEMENT  
At 448 PM PDT, Doppler radar was tracking a strong thunderstorm over
  Areas affected: San Diego County Mountains; San Diego County Deserts
Effective: Aug 15 4:48 pm Expired: Aug 15 5:30 pm Duration: 0 hrs   42 mins  
Inyo County
FLS.gif   FLOOD ADVISORY  
  Areas affected: Inyo, CA; San Bernardino, CA; Clark, NV; Nye, NV
Effective: Aug 15 6:29 pm Expired: Aug 15 9:00 pm Duration: 2 hrs   31 mins  


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