Alert archive / Arizona / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 82, NWS Flagstaff, AZ

July 26, 2024Coconino County, Yavapai County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 26, 2024, 1:48 PM MST for Coconino County, Yavapai County, Arizona. It was in force for 15 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: Jul 26, 2024, 1:48 PM MST (20:48 UTC)
Expired: Jul 26, 2024, 2:03 PM MST
In force: 15 min
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Coconino County, AZ, Yavapai County, AZ

The radar

The Flagstaff radar (KFSX), 113 km from the middle of the area, began a volume at 20:49 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

Las Vegas, NV (KVEF), launched 12:00Z, 8.8 hours before the alert went out and 331 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: 10 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 3730 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: -12 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 Flagstaff, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 10:30 AM MST, 3 hours 18 minutes earlier.

Area forecast discussion, Jul 26, 10:30 AM MST, 3 hours 18 minutes before

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In the hours before

Local storm report, Jul 26, 12:11 PM MST, 1 hour 37 minutes before

Preliminary Local Storm Report
National Weather Service Flagstaff AZ
1211 PM MST Fri Jul 26 2024

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

1200 PM     Hail             2 ENE Downtown Flagstaf 35.20N 111.61W
07/26/2024  E0.50 Inch       Coconino           AZ   Public

            Half inch hail reported by the public and a
            NWS Employee.

&&

BEP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 5:12 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	33 min
Jul 25, 5:46 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Apache	6 hr
Jul 26, 1:36 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino	4 hr
Jul 26, 1:58 PM MST	Severe Thunderstorm Warning	FGZ	Gila	32 min
Jul 26, 2:01 PM MST	Severe Thunderstorm Warning	FGZ	Gila	29 min
Jul 26, 2:34 PM MST	Severe Thunderstorm Warning	FGZ	Gila	19 min
Jul 26, 3:52 PM MST	Special Weather Statement	FGZ	Yavapai	23 min
Jul 26, 4:03 PM MST	Special Weather Statement	FGZ		27 min
Jul 26, 4:12 PM MST	Special Weather Statement	FGZ		33 min
Jul 26, 4:23 PM MST	Severe Thunderstorm Warning	FGZ	Gila, Yavapai	37 min
Jul 26, 4:54 PM MST	Severe Thunderstorm Warning Considerable damage threat	FGZ	Yavapai	36 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.