Alert archive / Oklahoma / Red Flag Warnings in 2022

Red Flag Warning 23, NWS Norman, OK

April 23, 202215 counties in Oklahoma; Foard County, Hardeman County, Knox County, Texas

NWS Norman, OK issued this red flag warning at Apr 23, 2022, 2:34 AM CDT for 15 counties in Oklahoma; Foard County, Hardeman County, Knox County, Texas. It took effect at Apr 23, 2022, 12:00 PM CDT. It was in force for 9 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: Apr 23, 2022, 2:34 AM CDT (07:34 UTC)
In effect from: Apr 23, 2022, 12:00 PM CDT
Expired: Apr 23, 2022, 9:00 PM CDT
In force: 9 hr
Issued by: NWS Norman, OK

Counties Alfalfa County, OK, Beckham County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Kiowa County, OK, Major County, OK, Roger Mills County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Foard County, TX, Hardeman County, TX, Knox County, TX

The radar

The Altus AFB radar (KFDR), 125 km from the middle of the area, began a volume at 07:36 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 7.6 hours before the alert went out and 217 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: 2360 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1532 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 364 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 18.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this red flag warning went out at Apr 23, 2:22 AM CDT, 12 minutes earlier.

Area forecast discussion, Apr 23, 2:22 AM CDT, 12 minutes before

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Hazardous weather outlook, Apr 23, 1:20 AM CDT, 1 hour 14 minutes before

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In the hours before

Local storm report, Apr 22, 9:46 PM CDT, 4 hours 48 minutes before

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Local storm report, Apr 22, 10:43 PM CDT, 3 hours 51 minutes before

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Local storm report, Apr 22, 11:02 PM CDT, 3 hours 32 minutes before

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Local storm report, Apr 23, 1:07 AM CDT, 1 hour 27 minutes before

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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 23, 2:19 AM CDT	Flood Watch	OUN	Atoka, Bryan, Carter, Cleveland, Coal, Comanche and 16 more	48 hr
Apr 23, 4:17 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Harper	43 min
Apr 23, 5:04 AM CDT	Special Weather Statement	OUN	Woodward	26 min
Apr 23, 5:08 PM CDT	Special Weather Statement	OUN	Canadian	37 min
Apr 23, 5:11 PM CDT	Special Weather Statement	OUN	Kiowa	34 min
Apr 23, 5:35 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan	40 min
Apr 23, 5:44 PM CDT	Special Weather Statement	OUN	Caddo, Canadian	31 min
Apr 23, 5:49 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Grady	41 min
Apr 23, 6:00 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	45 min
Apr 23, 6:10 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kay, Logan, Noble	37 min
Apr 23, 6:14 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan, Noble, Payne	46 min
Apr 23, 6:21 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan	39 min
Apr 23, 6:29 PM CDT	Special Weather Statement	OUN	Caddo	31 min
Apr 23, 6:31 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Caddo, Canadian, Grady	44 min
Apr 23, 6:37 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa	38 min
Apr 23, 6:53 PM CDT	Special Weather Statement	OUN	Tillman	37 min
Apr 23, 6:58 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Noble, Payne	47 min
Apr 23, 6:59 PM CDT	Tornado Warning	OUN	Logan, Payne	46 min

Nearby

Red Flag Warnings in Oklahoma, 2022 Red Flag Warnings in Texas, 2022 Every red flag 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.