Arizona, California Severe Severe Thunderstorm Warning | Effective 09/01/2026 17:55

Headline: 
Severe Thunderstorm Warning issued September 1 at 5:55PM MST until September 1 at 6:15PM MST by NWS Phoenix AZ
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
September 1, 2026 - 5:55pm
Expires: 
September 1, 2026 - 6:15pm
Description: 
At 555 PM MST/555 PM PDT/, a severe thunderstorm was located 7 miles southwest of Martinez Lake, moving east at 30 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Martinez Lake. This includes the following highways... CA Interstate 8 between mile markers 85 and 92. AZ Route 95 between mile markers 48 and 54.
Instruction: 
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
La Paz, AZ; Yuma, AZ; Imperial, CA
Forcast Office: 
NWS Phoenix AZ
Sender: 
w-nws.webmaster@noaa.gov