Alert archive / Texas / Red Flag Warnings in 2012

Red Flag Warning 2, NWS Norman, OK

February 20, 20124 counties in Oklahoma; 8 counties in Texas

NWS Norman, OK issued this red flag warning at Feb 20, 2012, 3:22 AM CST for 4 counties in Oklahoma; 8 counties in Texas. It took effect at Feb 20, 2012, 1:00 PM CST. It was in force for 6 hr. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 20, 2012, 3:22 AM CST (09:22 UTC)
In effect from
Feb 20, 2012, 1:00 PM CST
Expired
Feb 20, 2012, 7:00 PM CST
In force
6 hr
Issued by
NWS Norman, OK

Counties Cotton County, OK, Harmon County, OK, Jackson County, OK, Tillman 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), 36 km from the middle of the area, began a volume at 09:26 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.

What was reported inside it

TimeReportWhereRemark
Feb 20, 2:00 PM CSTNON-TSTM WND GST 533 W Gould, OK
Feb 20, 2:05 PM CSTNON-TSTM WND GST 543 W Gould, OK
Feb 20, 2:10 PM CSTNON-TSTM WND GST 533 W Gould, OK
Feb 20, 2:20 PM CSTNON-TSTM WND GST 593 W Gould, OKPOST-DRYLINE WEST WIND
Feb 20, 2:29 PM CSTNON-TSTM WND GST 52Altus, OKPOST-DRYLINE WEST WIND

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 9.4 hours before the alert went out and 205 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2012-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2012-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
1240 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

785 
WWUS84 KOUN 200922
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
322 AM CST MON FEB 20 2012

OKZ034-035-038-201030-
/O.CAN.KOUN.FW.A.0002.120220T1900Z-120221T0100Z/
GREER-KIOWA-COMANCHE-
322 AM CST MON FEB 20 2012

...FIRE WEATHER WATCH IS CANCELLED FOR PARTS OF SOUTHWEST OKLAHOMA...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS CANCELLED THE FIRE
WEATHER WATCH. 

LOW HUMIDITIES AND STRONG WINDS WILL COMBINE TO INCREASE THE
WILDFIRE POTENTIAL THIS AFTERNOON. HOWEVER... TEMPERATURES ARE NOT
QUITE EXPECTED TO REACH CRITICAL LEVELS.

$$

OKZ033-036-037-044-TXZ083>090-201730-
/O.UPG.KOUN.FW.A.0002.120220T1900Z-120221T0100Z/
/O.NEW.KOUN.FW.W.0002.120220T1900Z-120221T0100Z/
HARMON-JACKSON-TILLMAN-COTTON-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
322 AM CST MON FEB 20 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
CST THIS EVENING FOR VERY WINDY... DRY AND WARM CONDITIONS FOR PARTS
OF SOUTHWEST OKLAHOMA AND ALL OF WESTERN NORTH TEXAS...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM CST
THIS EVENING. 

* WIND... SOUTH WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS WILL SHIFT
  TO THE WEST AT 25 TO 35 MPH WITH GUSTS TO NEAR 50 MPH IN THE
  AFTERNOON.

* HUMIDITY...15 TO 20 PERCENT.

* TEMPERATURE...HIGHS 65 TO 69 DEGREES.

* IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR
  BURNING IS NOT RECOMMENDED.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT.

&&

$$
3 follow-up statements
059 
WWUS84 KOUN 201702
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
1102 AM CST MON FEB 20 2012

OKZ033-036-037-044-TXZ083>090-210100-
/O.CON.KOUN.FW.W.0002.120220T1900Z-120221T0100Z/
HARMON-JACKSON-TILLMAN-COTTON-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
1102 AM CST MON FEB 20 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING
FOR VERY WINDY... DRY AND WARM CONDITIONS FOR PARTS OF SOUTHWEST
OKLAHOMA AND ALL OF WESTERN NORTH TEXAS...

* WIND... SOUTH WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS WILL 
  SHIFT TO THE WEST AT 25 TO 35 MPH WITH GUSTS TO NEAR 50 MPH IN 
  THE AFTERNOON. 

* HUMIDITY...10 TO 20 PERCENT.

* TEMPERATURE...HIGHS 63 TO 68 DEGREES.

* IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR 
  BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT.

&&

$$
634 
WWUS84 KOUN 202105
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
305 PM CST MON FEB 20 2012

OKZ033-036-037-044-TXZ083>090-210100-
/O.CON.KOUN.FW.W.0002.000000T0000Z-120221T0100Z/
HARMON-JACKSON-TILLMAN-COTTON-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
305 PM CST MON FEB 20 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS EVENING
FOR STRONG WINDS AND VERY DRY AIR ACROSS WESTERN NORTH TEXAS AND
SOUTHWEST OKLAHOMA...

* WIND...WEST AND SOUTHWEST 25 TO 35 MPH WITH GUSTS AROUND 50 MPH.

* HUMIDITY...10 TO 15 PERCENT.

* TEMPERATURE...HIGHS 63 TO 68 DEGREES.

* IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR 
  BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT.

&&

$$
837 
WWUS84 KOUN 210110
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
710 PM CST MON FEB 20 2012


OKZ033-036-037-044-TXZ083>090-210215-
/O.EXP.KOUN.FW.W.0002.000000T0000Z-120221T0100Z/
HARMON-JACKSON-TILLMAN-COTTON-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
710 PM CST MON FEB 20 2012

...RED FLAG WARNING HAS EXPIRED...

BREEZY NORTHWEST AND WEST WINDS WILL CONTINUE TO DIMINISH DURING
THE EVENING AND HUMIDITY WILL GRADUALLY INCREASE. 

VERY DRY AND BREEZY CONDITIONS ARE EXPECTED TUESDAY AFTERNOON
ACROSS AT LEAST SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS. THIS
WILL HELP ELEVATE THE RISK OF WILDFIRES.


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 3:03 PM CSTSpecial Weather StatementOUNGarfield, Grant, Kingfisher27 min
Feb 20, 3:07 PM CSTSevere Thunderstorm WarningOUNGarfield, Grant, Kay, Noble53 min
Feb 20, 3:12 PM CSTHigh Wind WarningOUNBeckham, Blaine, Caddo, Custer, Dewey, Ellis and 8 more4 hr
Feb 20, 3:35 PM CSTSpecial Weather StatementOUNCanadian, Grady, Kingfisher, Logan, Oklahoma, Stephens25 min
Feb 20, 3:52 PM CSTSevere Thunderstorm WarningOUNLincoln, Logan, Oklahoma38 min
Feb 20, 3:56 PM CSTSevere Thunderstorm WarningOUNGarfield, Kay, Noble49 min
Feb 20, 4:03 PM CSTSevere Thunderstorm WarningOUNCleveland, McClain, Pottawatomie, Seminole42 min
Feb 20, 4:26 PM CSTSevere Thunderstorm WarningOUNLincoln, Payne31 min
Feb 20, 4:31 PM CSTSpecial Weather StatementOUNPayne14 min
Feb 20, 4:44 PM CSTSevere Thunderstorm WarningOUNGarvin, Hughes, Lincoln, McClain, Pontotoc, Pottawatomie and 1 more46 min
Feb 20, 5:28 PM CSTSevere Thunderstorm WarningOUNCoal, Hughes, Pontotoc37 min
Feb 20, 5:42 PM CSTSpecial Weather StatementOUNCoal18 min
Feb 20, 5:47 PM CSTSevere Thunderstorm WarningOUNAtoka, Coal, Johnston, Pontotoc35 min

Nearby

Red Flag Warnings in Texas, 2012Red Flag Warnings in Oklahoma, 2012Every red flag warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.