Alert archive / Arizona / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 19, NWS Flagstaff, AZ

June 27, 2024Navajo County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Jun 27, 2024, 9:34 AM MDT for Navajo County, Arizona. It was in force for 26 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: Jun 27, 2024, 9:34 AM MDT (15:34 UTC)
Expired: Jun 27, 2024, 10:00 AM MDT
In force: 26 min
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Navajo County, AZ

The radar

The Flagstaff radar (KFSX), 122 km from the middle of the area, began a volume at 15:34 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 3.6 hours before the alert went out and 136 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: 765 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

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 Jun 27, 4:42 AM MDT, 4 hours 52 minutes earlier.

Area forecast discussion, Jun 27, 4:42 AM MDT, 4 hours 52 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 7:17 PM MDT	Severe Thunderstorm Warning	FGZ	Coconino	28 min
Jun 27, 10:02 AM MDT	Special Weather Statement	FGZ	Navajo	28 min
Jun 27, 10:32 AM MDT	Special Weather Statement	FGZ	Navajo	28 min
Jun 27, 11:01 AM MDT	Special Weather Statement	FGZ	Apache	44 min
Jun 27, 11:18 AM MDT	Areal Flood Advisory	FGZ	Navajo	117 min
Jun 27, 11:47 AM MDT	Severe Thunderstorm Warning	FGZ	Coconino	43 min
Jun 27, 12:01 PM MDT	Special Weather Statement	FGZ		44 min
Jun 27, 12:14 PM MDT	Special Weather Statement	FGZ	Apache	31 min
Jun 27, 12:32 PM MDT	Severe Thunderstorm Warning	FGZ	Coconino	43 min
Jun 27, 12:41 PM MDT	Areal Flood Advisory	FGZ	Apache	109 min
Jun 27, 1:00 PM MDT	Areal Flood Advisory	FGZ	Apache	3 hr
Jun 27, 1:52 PM MDT	Flash Flood Warning Considerable damage threat	FGZ	Coconino	3 hr
Jun 27, 2:09 PM MDT	Severe Thunderstorm Warning	FGZ	Coconino	51 min
Jun 27, 2:43 PM MDT	Flash Flood Warning Considerable damage threat	FGZ	Coconino, Navajo	3 hr
Jun 27, 3:00 PM MDT	Severe Thunderstorm Warning	FGZ	Coconino	45 min
Jun 27, 3:22 PM MDT	Severe Thunderstorm Warning	FGZ	Coconino, Navajo	23 min
Jun 27, 3:46 PM MDT	Flash Flood Warning Considerable damage threat	FGZ	Coconino	2 hr
Jun 27, 4:12 PM MDT	Flash Flood Warning Considerable damage threat	FGZ	Coconino	2 hr
Jun 27, 5:04 PM MDT	Severe Thunderstorm Warning	FGZ	Apache, Navajo	26 min
Jun 27, 5:21 PM MDT	Flash Flood Warning Considerable damage threat	FGZ	Navajo	3 hr

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.