Alert archive / Arizona / Flash Flood Warnings in 2022

Flash Flood Warning 172, NWS Phoenix, AZ

August 17, 2022La Paz County, Arizona

NWS Phoenix, AZ issued this flash flood warning at Aug 17, 2022, 6:25 PM MST for La Paz County, Arizona. 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 17, 2022, 6:25 PM MST (01:25 UTC)
Expired: Aug 17, 2022, 10:30 PM MST
In force: 4 hr
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County La Paz County, AZ

The radar

The Yuma radar (KYUX), 151 km from the middle of the area, began a volume at 01:28 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 17, 5:00 PM MST, 1 hour 25 minutes earlier.

Area forecast discussion, Aug 17, 5:00 PM MST, 1 hour 25 minutes before

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In the hours before

Special weather statement, Aug 17, 4:06 PM MST, 2 hours 19 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
406 PM MST Wed Aug 17 2022

AZZ538-172345-
Tonopah Desert AZ-
406 PM MST Wed Aug 17 2022

...A strong thunderstorm will impact portions of Maricopa County
through 445 PM MST...

At 406 PM MST, Doppler radar was tracking a strong thunderstorm over
Wintersburg, or near Tonopah, moving southwest at 5 mph.

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...
Palo Verde Nuclear Generation Station and Wintersburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3348 11290 3340 11276 3321 11288 3343 11312
TIME...MOT...LOC 2306Z 047DEG 6KT 3341 11288

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

Local storm report, Aug 17, 4:19 PM MST, 2 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
419 PM MST WED AUG 17 2022

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

0405 PM     TSTM WND GST     4 SSW CITRUS PARK       33.48N 112.48W
08/17/2022  M61 MPH          MARICOPA           AZ   MESONET

            MESONET IN LITCHFIELD PARK MEASURED
            THUNDERSTORM WIND GUST OF 61 MPH.

&&

BF

Special weather statement, Aug 17, 4:41 PM MST, 1 hour 44 minutes before

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Special weather statement, Aug 17, 5:33 PM MST, 52 minutes before

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Special weather statement, Aug 17, 5:42 PM MST, 43 minutes before

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Local storm report, Aug 17, 6:23 PM MST, 2 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 17, 5:03 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	57 min
Aug 17, 5:05 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	40 min
Aug 17, 5:15 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	45 min
Aug 17, 5:16 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	29 min
Aug 17, 5:33 PM MST	Special Weather Statement	PSR		42 min
Aug 17, 5:42 PM MST	Special Weather Statement	PSR	Pinal	48 min
Aug 17, 5:52 PM MST	Severe Thunderstorm Warning	PSR	Yuma	23 min
Aug 17, 6:01 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	19 min
Aug 17, 6:02 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	21 min
Aug 17, 6:06 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	24 min
Aug 17, 6:12 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	48 min
Aug 17, 6:14 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 17, 6:15 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	45 min
Aug 17, 6:29 PM MST	Dust Storm Warning	PSR	Maricopa, Pinal	61 min
Aug 17, 6:58 PM MST	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	32 min
Aug 17, 7:04 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	41 min
Aug 17, 7:12 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	4 hr
Aug 17, 7:21 PM MST	Special Weather Statement	PSR	Yuma	39 min
Aug 17, 7:28 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	62 min
Aug 17, 7:44 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	46 min
Aug 17, 8:21 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	4 hr
Aug 17, 8:22 PM MST	Special Weather Statement	PSR	Yuma	38 min
Aug 17, 9:31 PM MST	Special Weather Statement	PSR	Pinal	44 min
Aug 17, 6:57 PM MST	Severe Thunderstorm Warning	PSR	Riverside	20 min

Nearby

Flash Flood Warnings in Arizona, 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.