Alert archive / Arizona / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 64, NWS Phoenix, AZ

August 11, 2022Gila County, Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 11, 2022, 2:53 PM MST for Gila County, Maricopa County, Arizona. It was in force for 29 min. 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 11, 2022, 2:53 PM MST (21:53 UTC)
Expired: Aug 11, 2022, 3:22 PM MST
In force: 29 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Gila County, AZ, Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 32 km from the middle of the area, began a volume at 21:56 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 nearest sounding before it

Phoenix, AZ (KPSR), launched 12:00Z, 9.9 hours before the alert went out and 34 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 270 J/kg
Mixed-layer CIN: -240 J/kg
Mixed-layer LCL: 1536 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 11, 10:42 AM MST, 4 hours 11 minutes earlier.

Area forecast discussion, Aug 11, 10:42 AM MST, 4 hours 11 minutes before

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In the hours before

Local storm report, Aug 11, 12:34 PM MST, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
1234 PM MST THU AUG 11 2022

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

0616 PM     TSTM WND GST     5 S YUMA                32.63N 114.62W
08/10/2022  M68 MPH          YUMA               AZ   AWOS

            [DELAYED REPORT] AWOS STATION KNYL YUMA
            REPORTED A 68 MPH WIND GUST.

&&

BF

Local storm report, Aug 11, 12:38 PM MST, 2 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
1238 PM MST THU AUG 11 2022

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

0552 PM     DUST STORM       5 WSW CITRUS PARK       33.51N 112.52W
08/10/2022                   MARICOPA           AZ   TRAINED SPOTTER

            [DELAYED REPORT] TRAINED SPOTTER REPORTED
            HALF MILE VISIBILITY IS BLOWING DUST.

&&

BF

Local storm report, Aug 11, 12:40 PM MST, 2 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
1240 PM MST THU AUG 11 2022

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

0600 PM     HEAVY RAIN       1 SW TONOPAH            33.49N 112.94W
08/10/2022  E0.50 INCH       MARICOPA           AZ   TRAINED SPOTTER

            [DELAYED REPORT] TRAINED SPOTTER REPORTED
            HALF AN INCH OF RAINFALL IN 30 MINUTES AND
            MINOR FLOODING IN BACKYARD.

&&

BF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 5:00 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 10, 5:01 PM MST	Areal Flood Advisory	PSR	Maricopa	5 hr
Aug 10, 5:03 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	20 min
Aug 10, 5:08 PM MST	Special Weather Statement	PSR	Yuma	52 min
Aug 10, 5:14 PM MST	Special Weather Statement	PSR	Maricopa	46 min
Aug 10, 5:16 PM MST	Severe Thunderstorm Warning	PSR	Gila	44 min
Aug 10, 5:17 PM MST	Special Weather Statement	PSR		43 min
Aug 10, 5:19 PM MST	Areal Flood Advisory	PSR	Maricopa	13 min
Aug 10, 5:25 PM MST	Special Weather Statement	PSR	Maricopa	35 min
Aug 10, 5:27 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 10, 5:32 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 10, 5:37 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	38 min
Aug 10, 5:39 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 10, 5:41 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 10, 5:43 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 10, 5:50 PM MST	Special Weather Statement	PSR	Yuma	25 min
Aug 10, 5:51 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila	2 hr
Aug 10, 5:56 PM MST	Severe Thunderstorm Warning	PSR	Yuma	34 min
Aug 10, 5:57 PM MST	Special Weather Statement	PSR		33 min
Aug 10, 6:01 PM MST	Special Weather Statement	PSR	Yuma	29 min
Aug 10, 6:02 PM MST	Special Weather Statement	PSR	Maricopa	28 min
Aug 10, 6:04 PM MST	Dust Storm Advisory	PSR	Yuma	56 min
Aug 10, 6:10 PM MST	Areal Flood Advisory	PSR	Maricopa	16 min
Aug 10, 6:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 10, 6:23 PM MST	Severe Thunderstorm Warning	PSR	Yuma	37 min
Aug 10, 6:26 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	2 hr
Aug 10, 6:29 PM MST	Areal Flood Advisory	PSR	Yuma	2 hr
Aug 10, 6:37 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 10, 6:40 PM MST	Areal Flood Advisory	PSR	Maricopa	50 min
Aug 10, 6:42 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	48 min
Aug 10, 6:47 PM MST	Special Weather Statement	PSR		43 min
Aug 10, 6:53 PM MST	Special Weather Statement	PSR	Yuma	52 min
Aug 10, 6:54 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 10, 6:56 PM MST	Severe Thunderstorm Warning	PSR	Yuma	49 min
Aug 10, 7:08 PM MST	Dust Storm Advisory	PSR	Yuma	67 min
Aug 10, 7:10 PM MST	Areal Flood Advisory	PSR	Yuma	8 min
Aug 10, 7:14 PM MST	Special Weather Statement	PSR		46 min
Aug 10, 7:18 PM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	3 hr
Aug 10, 7:30 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	2 hr
Aug 10, 7:44 PM MST	Areal Flood Advisory	PSR	Yuma	2 hr
Aug 10, 8:17 PM MST	Dust Storm Advisory	PSR	Pinal	58 min
Aug 10, 9:43 PM MST	Special Weather Statement	PSR		47 min
Aug 11, 3:01 PM MST	Severe Thunderstorm Warning	PSR	Gila, Pinal	44 min
Aug 11, 3:27 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	6 hr
Aug 11, 3:44 PM MST	Severe Thunderstorm Warning	PSR	Gila, Pinal	22 min
Aug 11, 4:21 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Pinal	4 hr
Aug 11, 4:50 PM MST	Severe Thunderstorm Warning	PSR	Pinal	40 min
Aug 10, 6:33 PM MST	Special Weather Statement	PSR	Imperial	42 min
Aug 10, 7:05 PM MST	Dust Storm Advisory	PSR	Imperial	55 min
Aug 11, 4:13 PM MST	Severe Thunderstorm Warning	PSR	Riverside	25 min
Aug 11, 4:25 PM MST	Flash Flood Warning Considerable damage threat	PSR	Riverside	4 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2022 Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.