Alert archive / Arizona / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 121, NWS Phoenix, AZ

August 23, 2024Gila County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 23, 2024, 2:05 PM MST for Gila County, Arizona. It was in force for 40 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 23, 2024, 2:05 PM MST (21:05 UTC)
Expired: Aug 23, 2024, 2:45 PM MST
In force: 40 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Gila County, AZ

The radar

The Flagstaff radar (KFSX), 93 km from the middle of the area, began a volume at 21:07 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, 9.1 hours before the alert went out and 115 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2384 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 67 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 22, 4:40 PM MST, 21 hours 25 minutes earlier.

Area forecast discussion, Aug 22, 4:40 PM MST, 21 hours 25 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 22, 5:04 PM MST	Areal Flood Advisory	PSR	Maricopa	6 hr
Aug 22, 5:29 PM MST	Special Weather Statement	PSR		46 min
Aug 22, 5:42 PM MST	Special Weather Statement	PSR		33 min
Aug 22, 5:47 PM MST	Special Weather Statement	PSR	Maricopa	43 min
Aug 22, 5:49 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	26 min
Aug 22, 6:03 PM MST	Severe Thunderstorm Warning	PSR	Maricopa	7 min
Aug 22, 6:51 PM MST	Special Weather Statement	PSR		39 min
Aug 22, 7:04 PM MST	Areal Flood Advisory	PSR	Maricopa	6 hr
Aug 23, 2:45 PM MST	Special Weather Statement	PSR		45 min
Aug 23, 3:17 PM MST	Severe Thunderstorm Warning	PSR	Gila	13 min
Aug 23, 3:54 PM MST	Special Weather Statement	PSR	Pinal	51 min
Aug 23, 4:24 PM MST	Special Weather Statement	PSR	Gila	36 min
Aug 23, 4:30 PM MST	Severe Thunderstorm Warning	PSR	Gila	30 min
Aug 23, 4:49 PM MST	Special Weather Statement	PSR	Gila	41 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2024 Every severe thunderstorm warning in 2024

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.