Alert archive / California / Flash Flood Warnings in 2022

Flash Flood Warning 216, NWS Phoenix, AZ

August 20, 2022Riverside County, California

NWS Phoenix, AZ issued this flash flood warning at Aug 20, 2022, 1:40 PM PDT for Riverside County, California. It was in force for 2 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: Aug 20, 2022, 1:40 PM PDT (20:40 UTC)
Expired: Aug 20, 2022, 3:59 PM PDT
In force: 2 hr
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Riverside County, CA

The radar

The San Diego radar (KNKX), 134 km from the middle of the area, began a volume at 20:41 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Phoenix, AZ wrote its last area forecast discussion before this flash flood warning went out at Aug 19, 3:37 PM PDT, 22 hours 3 minutes earlier.

Area forecast discussion, Aug 19, 3:37 PM PDT, 22 hours 3 minutes before

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The office that day

Everything else NWS Phoenix, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 19, 5:03 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	2 hr
Aug 19, 5:13 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 19, 5:13 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	36 min
Aug 19, 5:38 PM PDT	Special Weather Statement	PSR		52 min
Aug 19, 5:40 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	6 hr
Aug 19, 6:04 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	5 hr
Aug 19, 6:18 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 19, 6:25 PM PDT	Special Weather Statement	PSR		50 min
Aug 19, 6:32 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Gila	6 hr
Aug 19, 6:58 PM PDT	Severe Thunderstorm Warning	PSR	Yuma	25 min
Aug 19, 7:00 PM PDT	Special Weather Statement	PSR	Maricopa	45 min
Aug 19, 7:04 PM PDT	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 19, 7:08 PM PDT	Special Weather Statement	PSR	La Paz	52 min
Aug 19, 7:10 PM PDT	Areal Flood Advisory	PSR	La Paz, Maricopa	13 min
Aug 19, 7:12 PM PDT	Areal Flood Advisory	PSR	Maricopa	4 hr
Aug 19, 7:23 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa	3 hr
Aug 19, 7:25 PM PDT	Areal Flood Advisory	PSR	Maricopa	5 hr
Aug 19, 7:25 PM PDT	Severe Thunderstorm Warning	PSR	La Paz	20 min
Aug 19, 7:35 PM PDT	Special Weather Statement	PSR		40 min
Aug 19, 7:52 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 19, 7:56 PM PDT	Dust Storm Advisory	PSR	La Paz, Yuma	64 min
Aug 19, 8:18 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 19, 8:31 PM PDT	Areal Flood Advisory	PSR	La Paz, Maricopa	11 min
Aug 19, 8:42 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa	8 hr
Aug 19, 8:44 PM PDT	Areal Flood Advisory	PSR	La Paz, Maricopa	3 hr
Aug 19, 8:48 PM PDT	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 19, 8:59 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa	6 hr
Aug 19, 9:18 PM PDT	Areal Flood Advisory	PSR	La Paz, Maricopa, Yuma	3 hr
Aug 19, 10:07 PM PDT	Areal Flood Advisory	PSR	Yuma	4 hr
Aug 19, 10:08 PM PDT	Areal Flood Advisory	PSR	Maricopa, Yuma	20 min
Aug 19, 10:11 PM PDT	Dust Storm Advisory	PSR	La Paz, Yuma	64 min
Aug 19, 10:19 PM PDT	Severe Thunderstorm Warning	PSR	Yuma	41 min
Aug 19, 10:28 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	6 hr
Aug 19, 10:44 PM PDT	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 19, 10:54 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Yuma	4 hr
Aug 19, 11:48 PM PDT	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 20, 12:01 AM PDT	Areal Flood Advisory	PSR	Maricopa	4 hr
Aug 20, 12:34 AM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa, Yuma	4 hr
Aug 20, 12:45 AM PDT	Areal Flood Warning	PSR	La Paz	11 hr
Aug 20, 2:05 AM PDT	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 20, 3:06 AM PDT	Areal Flood Warning	PSR	La Paz, Maricopa	9 hr
Aug 20, 6:43 AM PDT	Areal Flood Warning	PSR	Gila	6 hr
Aug 20, 10:39 AM PDT	Special Weather Statement	PSR	Pinal	51 min
Aug 20, 11:05 AM PDT	Special Weather Statement	PSR	Pinal	40 min
Aug 20, 11:12 AM PDT	Special Weather Statement	PSR		48 min
Aug 20, 11:37 AM PDT	Flash Flood Warning Considerable damage threat	PSR	Pinal	3 hr
Aug 20, 11:56 AM PDT	Flash Flood Warning Considerable damage threat	PSR	Pinal	3 hr
Aug 20, 12:04 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Gila	3 hr
Aug 20, 12:44 PM PDT	Special Weather Statement	PSR	Maricopa	46 min
Aug 20, 1:01 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	3 hr
Aug 20, 1:18 PM PDT	Special Weather Statement	PSR	Maricopa	42 min
Aug 20, 1:33 PM PDT	Special Weather Statement	PSR	Pinal	42 min
Aug 20, 2:19 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Pinal	4 hr
Aug 20, 2:22 PM PDT	Special Weather Statement	PSR		38 min
Aug 20, 2:30 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 20, 3:04 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 20, 4:17 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Gila	3 hr
Aug 20, 1:16 PM PDT	Special Weather Statement	PSR	Riverside	44 min
Aug 20, 3:33 PM PDT	Special Weather Statement	PSR	Riverside	42 min
Aug 20, 3:44 PM PDT	Severe Thunderstorm Warning	PSR	Riverside, San Bernardino	29 min
Aug 20, 4:08 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Riverside, San Bernardino	115 min

Nearby

Flash Flood Warnings in California, 2022 Every flash flood warning in 2022

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.