Alert archive / California / Flash Flood Warnings in 2022

Flash Flood Warning 192, NWS Phoenix, AZ

August 18, 2022Imperial County, California

NWS Phoenix, AZ issued this flash flood warning at Aug 18, 2022, 11:25 PM PDT for Imperial County, California. It was in force for 4 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 18, 2022, 11:25 PM PDT (06:25 UTC)
Expired: Aug 19, 2022, 3:30 AM PDT
In force: 4 hr
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Imperial County, CA

The radar

The Yuma radar (KYUX), 90 km from the middle of the area, began a volume at 06:28 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 18, 10:54 PM PDT, 31 minutes earlier.

Area forecast discussion, Aug 18, 10:54 PM PDT, 31 minutes before

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In the hours before

Local storm report, Aug 18, 7:53 PM PDT, 3 hours 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
753 PM MST THU AUG 18 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0735 PM     FLASH FLOOD      6 WSW CAVE CREEK        33.79N 112.05W
08/18/2022                   MARICOPA           AZ   PUBLIC

            VIDEO OF FLOODED ROADWAY (14TH ST SOUTH OF
            CAREFREE HIGHWAY) ON TWITTER.

&&

INIGUEZ

Special weather statement, Aug 18, 8:21 PM PDT, 3 hours 4 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
821 PM MST Thu Aug 18 2022

AZZ537-538-540>544-546-559-190400-
Sonoran Desert Natl Monument AZ-Scottsdale/Paradise Valley AZ-
Buckeye/Avondale AZ-Cave Creek/New River AZ-Tonopah Desert AZ-
Central Phoenix AZ-Deer Valley AZ-Northwest Valley AZ-
North Phoenix/Glendale AZ-
821 PM MST Thu Aug 18 2022

...A strong thunderstorm will impact portions of Maricopa County
through 900 PM MST...

At 819 PM MST, Doppler radar was tracking clusters of strong
thunderstorms over Glendale and west parts of the Phoenix metro.
These storms were nearly stationary.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Phoenix, Glendale, Peoria, Surprise, Avondale, Goodyear, Buckeye, El
Mirage, Tolleson, Youngtown, Laveen, Sun City, Litchfield Park, Palo
Verde and Papago Park.

This includes the following highways...
AZ Interstate 10 between mile markers 101 and 150.
AZ Interstate 17 between mile markers 195 and 221.
AZ Route 51 between mile markers 1 and 15.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3379 11207 3349 11185 3318 11267 3345 11290
TIME...MOT...LOC 0319Z 095DEG 4KT 3355 11221

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Local storm report, Aug 18, 10:36 PM PDT, 49 minutes before

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Local storm report, Aug 18, 10:38 PM PDT, 47 minutes before

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Special weather statement, Aug 18, 10:41 PM PDT, 44 minutes before

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Local storm report, Aug 18, 10:52 PM PDT, 33 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 18, 5:15 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	45 min
Aug 18, 5:18 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	21 min
Aug 18, 5:19 PM PDT	Special Weather Statement	PSR		41 min
Aug 18, 5:39 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	14 min
Aug 18, 5:43 PM PDT	Special Weather Statement	PSR		47 min
Aug 18, 6:09 PM PDT	Special Weather Statement	PSR		51 min
Aug 18, 6:19 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 18, 6:20 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 18, 6:23 PM PDT	Dust Storm Advisory	PSR	Maricopa, Pinal	67 min
Aug 18, 6:24 PM PDT	Severe Thunderstorm Warning	PSR	La Paz	25 min
Aug 18, 6:30 PM PDT	Special Weather Statement	PSR		45 min
Aug 18, 6:32 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	43 min
Aug 18, 6:35 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	25 min
Aug 18, 6:37 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	23 min
Aug 18, 6:40 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa	4 hr
Aug 18, 6:46 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 18, 6:52 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	23 min
Aug 18, 6:58 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 18, 7:07 PM PDT	Special Weather Statement	PSR	La Paz	53 min
Aug 18, 7:09 PM PDT	Special Weather Statement	PSR		51 min
Aug 18, 7:41 PM PDT	Flash Flood Warning	PSR	Maricopa	3 hr
Aug 18, 7:42 PM PDT	Severe Thunderstorm Warning	PSR	La Paz	48 min
Aug 18, 7:52 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 18, 7:57 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa, Yuma	3 hr
Aug 18, 7:58 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	4 hr
Aug 18, 8:09 PM PDT	Flash Flood Warning	PSR	Maricopa	3 hr
Aug 18, 8:21 PM PDT	Special Weather Statement	PSR	Maricopa	39 min
Aug 18, 8:26 PM PDT	Severe Thunderstorm Warning	PSR	La Paz	32 min
Aug 18, 8:27 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 18, 8:32 PM PDT	Dust Storm Warning	PSR	La Paz, Yuma	88 min
Aug 18, 8:43 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	32 min
Aug 18, 8:45 PM PDT	Flash Flood Warning	PSR	Maricopa	4 hr
Aug 18, 8:46 PM PDT	Flash Flood Warning	PSR	Maricopa	3 hr
Aug 18, 8:56 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 18, 9:00 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	4 hr
Aug 18, 9:30 PM PDT	Dust Storm Warning	PSR	Yuma	60 min
Aug 18, 9:34 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Yuma	4 hr
Aug 18, 9:49 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 18, 10:12 PM PDT	Severe Thunderstorm Warning	PSR	La Paz, Yuma	33 min
Aug 18, 10:41 PM PDT	Special Weather Statement	PSR		49 min
Aug 19, 1:57 AM PDT	Areal Flood Advisory	PSR	Gila	3 hr
Aug 19, 11:17 AM PDT	Special Weather Statement	PSR	Gila	43 min
Aug 19, 1:32 PM PDT	Special Weather Statement	PSR	Pinal	43 min
Aug 19, 1:40 PM PDT	Special Weather Statement	PSR	Pinal	50 min
Aug 19, 2:03 PM PDT	Special Weather Statement	PSR		42 min
Aug 19, 2:14 PM PDT	Special Weather Statement	PSR	Pinal	46 min
Aug 19, 2:31 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Pinal	119 min
Aug 19, 2:35 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	28 min
Aug 19, 2:46 PM PDT	Dust Storm Advisory	PSR	Maricopa, Pinal	29 min
Aug 19, 2:54 PM PDT	Special Weather Statement	PSR	Pinal	51 min
Aug 19, 3:02 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	28 min
Aug 19, 3:28 PM PDT	Dust Storm Advisory	PSR	Maricopa, Pinal	47 min
Aug 19, 3:29 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Pinal	3 hr
Aug 19, 3:43 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	3 hr
Aug 19, 3:48 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa	42 min
Aug 19, 3:50 PM PDT	Special Weather Statement	PSR		40 min
Aug 19, 3:58 PM PDT	Special Weather Statement	PSR		47 min
Aug 19, 4:01 PM PDT	Dust Storm Advisory	PSR	Maricopa, Pinal	59 min
Aug 19, 4:18 PM PDT	Special Weather Statement	PSR		42 min
Aug 19, 4:42 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	5 hr
Aug 19, 4:50 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 19, 4:59 PM PDT	Special Weather Statement	PSR		46 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.