Alert archive / Oklahoma / Red Flag Warnings in 2026

Red Flag Warning 10, NWS Norman, OK

March 11, 202625 counties in Oklahoma; 7 counties in Texas

NWS Norman, OK issued this red flag warning at Mar 11, 2026, 1:27 PM CDT for 25 counties in Oklahoma; 7 counties in Texas. It took effect at Mar 12, 2026, 12:00 PM CDT. It was in force for 8 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: Mar 11, 2026, 1:27 PM CDT (18:27 UTC)
In effect from: Mar 12, 2026, 12:00 PM CDT
Expired: Mar 12, 2026, 8:00 PM CDT
In force: 8 hr
Issued by: NWS Norman, OK

All 32 counties

Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Major County, OK, Noble County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Archer County, TX, Baylor County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 111 km from the middle of the area, began a volume at 18:29 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

Norman, OK (KOUN), launched 12:00Z, 6.5 hours before the alert went out and 134 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: 1450 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 186 m²/s²
0-3 km storm-relative helicity: 153 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 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 Mar 11, 12:19 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Mar 11, 12:19 PM CDT, 1 hour 8 minutes before

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In the hours before

Local storm report, Mar 11, 10:08 AM CDT, 3 hours 19 minutes before

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Local storm report, Mar 11, 10:09 AM CDT, 3 hours 18 minutes before

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Local storm report, Mar 11, 11:30 AM CDT, 1 hour 57 minutes before

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Local storm report, Mar 11, 11:44 AM CDT, 1 hour 43 minutes before

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Local storm report, Mar 11, 12:18 PM CDT, 1 hour 9 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
Mar 10, 7:14 PM CDT	Special Weather Statement	OUN	Woods	46 min
Mar 10, 7:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Comanche, Cotton, Kiowa, Tillman	46 min
Mar 10, 7:27 PM CDT	Tornado Warning	OUN	Lincoln, Oklahoma, Pottawatomie	48 min
Mar 10, 7:29 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, McClain, Stephens	46 min
Mar 10, 7:41 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	46 min
Mar 10, 7:42 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa, Tillman	37 min
Mar 10, 8:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Lincoln, Oklahoma	52 min
Mar 10, 8:14 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, Stephens	31 min
Mar 10, 8:14 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady, McClain	46 min
Mar 10, 8:20 PM CDT	Special Weather Statement	OUN	Noble	40 min
Mar 10, 8:32 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, McClain	43 min
Mar 10, 8:37 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	38 min
Mar 10, 8:49 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	56 min
Mar 10, 8:51 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Alfalfa	39 min
Mar 10, 8:54 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	22 min
Mar 10, 8:55 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Pottawatomie	65 min
Mar 10, 9:09 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	51 min
Mar 10, 9:24 PM CDT	Special Weather Statement	OUN	Cleveland, Oklahoma	36 min
Mar 10, 9:29 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Love, Marshall	46 min
Mar 10, 9:30 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	45 min
Mar 10, 9:32 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	11 min
Mar 10, 9:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Carter, Johnston, Love, Marshall	41 min
Mar 10, 10:07 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Atoka, Bryan, Carter, Coal, Hughes, Johnston and 3 more	38 min
Mar 10, 10:16 PM CDT	Special Weather Statement	OUN	Grant	29 min
Mar 10, 10:23 PM CDT	Areal Flood Advisory	OUN	Carter	3 hr
Mar 10, 10:38 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Atoka, Bryan, Coal, Hughes, Johnston, Marshall and 1 more	67 min
Mar 10, 10:46 PM CDT	Tornado Warning	OUN	Hughes	29 min
Mar 10, 11:04 PM CDT	Tornado Warning	OUN	Atoka, Coal	26 min
Mar 10, 11:18 PM CDT	Areal Flood Advisory	OUN	Hughes, Pontotoc	3 hr
Mar 11, 1:26 AM CDT	Fire Weather Watch	OUN	Alfalfa, Beckham, Blaine, Caddo, Comanche, Custer and 13 more	22 hr
Mar 11, 1:26 AM CDT	Red Flag Warning	OUN	Alfalfa, Beckham, Blaine, Caddo, Comanche, Cotton and 14 more	18 hr

Nearby

Red Flag Warnings in Oklahoma, 2026 Red Flag Warnings in Texas, 2026 Every red flag warning in 2026

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.