Alert archive / California / Flash Flood Warnings in 2025
Flash Flood Warning 42, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Sep 18, 2025, 12:36 PM MST for La Paz County, Arizona; Imperial County, Riverside County, California. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 18, 2025, 12:36 PM MST (19:36 UTC)
- Expired
- Sep 18, 2025, 7:08 PM MST
- In force
- 7 hr
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties La Paz County, AZ, Imperial County, CA, Riverside County, CA
The radar
The Yuma radar (KYUX), 120 km from the middle of the area, began a volume at 19:40 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 5:33 PM MST | Special Weather Statement | PSR | Yuma | 42 min |
| Sep 17, 5:39 PM MST | Areal Flood Advisory | PSR | Yuma | 3 hr |
| Sep 17, 5:59 PM MST | Severe Thunderstorm Warning | PSR | Yuma | 46 min |
| Sep 18, 11:25 AM MST | Special Weather Statement | PSR | La Paz | 35 min |
| Sep 18, 11:29 AM MST | Special Weather Statement | PSR | La Paz | 31 min |
| Sep 18, 11:45 AM MST | Severe Thunderstorm Warning | PSR | La Paz | 45 min |
| Sep 18, 12:18 PM MST | Flash Flood Warning | PSR | La Paz, Yuma | 7 hr |
| Sep 18, 12:29 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 46 min |
| Sep 18, 12:35 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 55 min |
| Sep 18, 12:45 PM MST | Special Weather Statement | PSR | 75 min | |
| Sep 18, 12:48 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 57 min |
| Sep 18, 1:08 PM MST | Areal Flood Advisory | PSR | La Paz | 3 hr |
| Sep 18, 1:10 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 50 min |
| Sep 18, 1:16 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 47 min |
| Sep 18, 1:20 PM MST | Flash Flood Warning | PSR | La Paz | 6 hr |
| Sep 18, 1:32 PM MST | Special Weather Statement | PSR | Maricopa | 43 min |
| Sep 18, 1:44 PM MST | Areal Flood Advisory | PSR | La Paz, Yuma | 74 min |
| Sep 18, 1:48 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 42 min |
| Sep 18, 1:51 PM MST | Special Weather Statement | PSR | Gila | 39 min |
| Sep 18, 1:52 PM MST | Areal Flood Advisory | PSR | Gila | 3 hr |
| Sep 18, 2:18 PM MST | Severe Thunderstorm Warning | PSR | La Paz, Maricopa | 42 min |
| Sep 18, 2:29 PM MST | Flash Flood Warning | PSR | Gila | 3 hr |
| Sep 18, 2:44 PM MST | Special Weather Statement | PSR | Gila | 46 min |
| Sep 18, 2:54 PM MST | Special Weather Statement | PSR | 51 min | |
| Sep 18, 2:55 PM MST | Areal Flood Advisory | PSR | Maricopa | 3 hr |
| Sep 18, 2:58 PM MST | Flash Flood Warning | PSR | La Paz, Yuma | 3 hr |
| Sep 18, 3:20 PM MST | Flash Flood Warning | PSR | Gila, Maricopa | 3 hr |
| Sep 18, 3:21 PM MST | Special Weather Statement | PSR | 39 min | |
| Sep 18, 3:24 PM MST | Special Weather Statement | PSR | Gila | 36 min |
| Sep 18, 3:29 PM MST | Severe Thunderstorm Warning | PSR | Gila, Maricopa | 31 min |
| Sep 18, 4:09 PM MST | Areal Flood Advisory | PSR | Gila | 3 hr |
| Sep 18, 4:59 PM MST | Special Weather Statement | PSR | Yuma | 46 min |
| Sep 17, 5:14 PM MST | Special Weather Statement | PSR | Imperial | 46 min |
| Sep 18, 1:39 AM MST | Areal Flood Advisory | PSR | Imperial | 111 min |
| Sep 18, 5:14 AM MST | Areal Flood Advisory | PSR | Riverside | 2 hr |
| Sep 18, 4:55 PM MST | Special Weather Statement | PSR | Imperial | 50 min |
| Sep 18, 4:56 PM MST | Flash Flood Warning | PSR | Imperial | 3 hr |
Nearby
Flash Flood Warnings in California, 2025Flash Flood Warnings in Arizona, 2025Every flash flood warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.