Alert archive / Oklahoma / Red Flag Warnings in 2025
Red Flag Warning 12, NWS Norman, OK
NWS Norman, OK issued this red flag warning at Dec 18, 2025, 9:26 AM CST for 12 counties in Oklahoma. It took effect at Dec 18, 2025, 11:00 AM CST. It was in force for 7 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
- Dec 18, 2025, 9:26 AM CST (15:26 UTC)
- In effect from
- Dec 18, 2025, 11:00 AM CST
- Expired
- Dec 18, 2025, 6:00 PM CST
- In force
- 7 hr
- Issued by
- NWS Norman, OK
Counties Alfalfa County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Harper County, OK, Kay County, OK, Major County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 68 km from the middle of the area, began a volume at 15:09 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
Dodge City, (KDDC), launched 12:00Z, 3.4 hours before the alert went out and 186 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1868 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -447 m²/s²
- 0-3 km storm-relative helicity
- -646 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Dec 18, 5:45 AM CST, 3 hours 41 minutes earlier.
Area forecast discussion, Dec 18, 5:45 AM CST, 3 hours 41 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 4:30 AM CST | Wind Advisory | OUN | Alfalfa, Dewey, Ellis, Garfield, Grant, Harper and 5 more | 14 hr |
Nearby
Red Flag Warnings in Oklahoma, 2025Every red flag warning in 2025
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.