Alert archive / Oklahoma / Red Flag Warnings in 2014

Red Flag Warning 27, NWS Norman, OK

May 3, 201416 counties in Oklahoma; 8 counties in Texas

NWS Norman, OK issued this red flag warning at May 3, 2014, 9:40 PM CDT for 16 counties in Oklahoma; 8 counties in Texas. It took effect at May 4, 2014, 10:00 AM CDT. It was in force for 11 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: May 3, 2014, 9:40 PM CDT (02:40 UTC)
In effect from: May 4, 2014, 10:00 AM CDT
Expired: May 4, 2014, 9:00 PM CDT
In force: 11 hr
Issued by: NWS Norman, OK

All 24 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, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 81 km from the middle of the area, began a volume at 02:39 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

Fort Worth, TX (KFWD), launched 00:00Z, 2.7 hours before the alert went out and 305 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: 4385 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 52 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 May 3, 6:05 PM CDT, 3 hours 35 minutes earlier.

Area forecast discussion, May 3, 6:05 PM CDT, 3 hours 35 minutes before

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Hazardous weather outlook, May 3, 11:50 AM CDT, 9 hours 50 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
May 4, 3:34 AM CDT	Wind Advisory	OUN	Alfalfa, Blaine, Custer, Dewey, Ellis, Garfield and 11 more	17 hr

Nearby

Red Flag Warnings in Oklahoma, 2014 Red Flag Warnings in Texas, 2014 Every red flag warning in 2014

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.