Alert archive / Oklahoma / Red Flag Warnings in 2011

Red Flag Warning 39, NWS Norman, OK

June 18, 20119 counties in Oklahoma; 5 counties in Texas

NWS Norman, OK issued this red flag warning at Jun 18, 2011, 3:21 PM CDT for 9 counties in Oklahoma; 5 counties in Texas. It took effect at Jun 19, 2011, 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: Jun 18, 2011, 3:21 PM CDT (20:21 UTC)
In effect from: Jun 19, 2011, 12:00 PM CDT
Expired: Jun 19, 2011, 9:00 PM CDT
In force: 9 hr
Issued by: NWS Norman, OK

Counties Beckham County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Baylor County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 94 km from the middle of the area, began a volume at 20:19 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, 8.4 hours before the alert went out and 195 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: 2233 J/kg
Mixed-layer CIN: -458 J/kg
Mixed-layer LCL: 1688 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 467 m²/s²
0-3 km storm-relative helicity: 489 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

575 
WWUS84 KOUN 182021
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
321 PM CDT SAT JUN 18 2011

OKZ004-009-010-014-021-033-034-036-TXZ083-084-087-190430-
/O.UPG.KOUN.FW.A.0041.110619T1700Z-110620T0200Z/
/O.NEW.KOUN.FW.W.0039.110619T1700Z-110620T0200Z/
HARPER-ELLIS-WOODWARD-ROGER MILLS-BECKHAM-HARMON-GREER-JACKSON-
HARDEMAN-FOARD-KNOX-
321 PM CDT SAT JUN 18 2011

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT SUNDAY FOR 
FAR WESTERN OKLAHOMA AND WESTERN PARTS OF NORTH TEXAS...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 9 PM CDT SUNDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* WINDS...SOUTH SOUTHWEST 15 TO 30 MPH. 

* HUMIDITY...5 TO 15 PERCENT.

* TEMPERATURE...102 TO 110.

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



PRECAUTIONARY/PREPAREDNESS ACTIONS...

FIRES MAY START EASILY AND SPREAD RAPIDLY. REPORT SMOKE OR FIRE
TO YOUR LOCAL FIRE DEPARTMENT.

&&

$$

OKZ005-TXZ085-088-190430-
/O.NEW.KOUN.FW.W.0039.110619T1700Z-110620T0200Z/
WOODS-WILBARGER-BAYLOR-
321 PM CDT SAT JUN 18 2011

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT SUNDAY FOR  
FAR WESTERN OKLAHOMA AND WESTERN PARTS OF NORTH TEXAS...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 9 PM CDT SUNDAY. 

* WIND... SOUTH 15 TO 30 MPH. 

* HUMIDITY... 8 TO 20 PERCENT.

* TEMPERATURE... HIGHS 102 TO 110.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FIRES MAY START EASILY AND SPREAD RAPIDLY. REPORT SMOKE OR FIRE
TO YOUR LOCAL FIRE DEPARTMENT.

&&

$$

4 follow-up statements

650 
WWUS84 KOUN 190914
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
414 AM CDT SUN JUN 19 2011

OKZ004-005-009-010-014-021-033-034-036-TXZ083>085-087-088-191715-
/O.CON.KOUN.FW.W.0039.110619T1700Z-110620T0200Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-BECKHAM-HARMON-GREER-
JACKSON-HARDEMAN-FOARD-WILBARGER-KNOX-BAYLOR-
414 AM CDT SUN JUN 19 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM CDT
THIS EVENING FOR FAR WESTERN OKLAHOMA AND WESTERN PARTS OF NORTH TEXAS...

* WIND... SOUTH 15 TO 30 MPH.

* HUMIDITY... 5 TO 15 PERCENT.

* TEMPERATURE... HIGHS 102 TO 110.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FIRES MAY START EASILY AND SPREAD RAPIDLY. REPORT SMOKE OR FIRE
TO YOUR LOCAL FIRE DEPARTMENT. DUE TO THE ONGOING VERY HOT
TEMPERATURES... FIRE FIGHTING PERSONNEL SHOULD TAKE EXTRA
PRECAUTIONS TO AVOID HEAT RELATED ILLNESSES.

&&

$$

404 
WWUS84 KOUN 191718
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
1218 PM CDT SUN JUN 19 2011

OKZ004-005-009-010-014-021-033-034-036-TXZ083>085-087-088-200130-
/O.CON.KOUN.FW.W.0039.000000T0000Z-110620T0200Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-BECKHAM-HARMON-GREER-
JACKSON-HARDEMAN-FOARD-WILBARGER-KNOX-BAYLOR-
1218 PM CDT SUN JUN 19 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
FOR FAR WESTERN OKLAHOMA AND WESTERN PARTS OF NORTH TEXAS...

* WIND... SOUTH 15 TO 25 MPH WITH HIGHER GUSTS.

* HUMIDITY... 7 TO 20 PERCENT.

* TEMPERATURE... HIGHS 102 TO 110.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FIRES MAY START EASILY AND SPREAD RAPIDLY. REPORT SMOKE OR FIRE
TO YOUR LOCAL FIRE DEPARTMENT. DUE TO THE ONGOING VERY HOT
TEMPERATURES... FIRE FIGHTING PERSONNEL SHOULD TAKE EXTRA
PRECAUTIONS TO AVOID HEAT RELATED ILLNESSES.

&&

$$

453 
WWUS84 KOUN 191825
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
125 PM CDT SUN JUN 19 2011

OKZ004-005-009-010-014-021-033-034-036-TXZ083>085-087-088-200230-
/O.NEW.KOUN.FW.A.0042.110620T1700Z-110621T0200Z/
/O.CON.KOUN.FW.W.0039.000000T0000Z-110620T0200Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-BECKHAM-HARMON-GREER-
JACKSON-HARDEMAN-FOARD-WILBARGER-KNOX-BAYLOR-
125 PM CDT SUN JUN 19 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
FOR FAR WESTERN OKLAHOMA AND WESTERN PARTS OF NORTH TEXAS...
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
MONDAY EVENING FOR THE SAME AREAS...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY
EVENING. A RED FLAG WARNING ALSO REMAINS IN EFFECT TODAY UNTIL 9 PM.

* WIND... SOUTHWEST 15 TO 30 MPH WITH HIGHER GUSTS BOTH AFTERNOONS.

* HUMIDITY... MINIMUM 7 TO 20 PERCENT BOTH AFTERNOONS.

* TEMPERATURE... HIGHS 105 TO 110 SUNDAY... 98 TO 107 MONDAY.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FIRES MAY START EASILY AND SPREAD RAPIDLY. REPORT SMOKE OR FIRE
TO YOUR LOCAL FIRE DEPARTMENT. DUE TO THE ONGOING VERY HOT
TEMPERATURES... FIRE FIGHTING PERSONNEL SHOULD TAKE EXTRA
PRECAUTIONS TO AVOID HEAT RELATED ILLNESSES.

MONITOR WEATHER FORECASTS AND INFORMATION.

&&

$$

OKZ006-011-015>017-022-035-037-200230-
/O.NEW.KOUN.FW.A.0042.110620T1700Z-110621T0200Z/
ALFALFA-MAJOR-DEWEY-CUSTER-BLAINE-WASHITA-KIOWA-TILLMAN-
125 PM CDT SUN JUN 19 2011

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
MONDAY EVENING FOR WESTERN PARTS OF NORTH TEXAS AND MOST OF 
THE WESTERN ONE FOURTH OF OKLAHOMA...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM MONDAY AFTERNOON THROUGH 9 PM MONDAY
EVENING.

* WIND... SOUTHWEST 20 TO 30 MPH WITH HIGHER GUSTS.

* HUMIDITY... MINIMUM 7 TO 15 PERCENT.

* TEMPERATURE... HIGHS 98 TO 107.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR WEATHER FORECASTS AND INFORMATION.

&&

$$

396 
WWUS84 KOUN 200214
RFWOUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
914 PM CDT SUN JUN 19 2011

OKZ004-005-009-010-014-021-033-034-036-TXZ083>085-087-088-201015-
/O.EXP.KOUN.FW.W.0039.000000T0000Z-110620T0200Z/
/O.CON.KOUN.FW.A.0042.110620T1700Z-110621T0200Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-BECKHAM-HARMON-GREER-
JACKSON-HARDEMAN-FOARD-WILBARGER-KNOX-BAYLOR-
914 PM CDT SUN JUN 19 2011

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING FOR WESTERN OKLAHOMA AND PARTS OF
WESTERN NORTH TEXAS...

...RED FLAG WARNING HAS EXPIRED...

* WIND... SOUTHWEST 15 TO 30 MPH WITH HIGHER GUSTS ABOVE 40 MPH.

* HUMIDITY... MINIMUM 7 TO 15 PERCENT.

* TEMPERATURE... HIGHS 98 TO 107.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FIRES MAY START EASILY AND SPREAD RAPIDLY. REPORT SMOKE OR FIRE
TO YOUR LOCAL FIRE DEPARTMENT. DUE TO THE ONGOING VERY HOT
TEMPERATURES... FIRE FIGHTING PERSONNEL SHOULD TAKE EXTRA
PRECAUTIONS TO AVOID HEAT RELATED ILLNESSES.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR WEATHER FORECASTS AND INFORMATION.

&&

$$

OKZ006-011-015>017-022-035-037-201015-
/O.CON.KOUN.FW.A.0042.110620T1700Z-110621T0200Z/
ALFALFA-MAJOR-DEWEY-CUSTER-BLAINE-WASHITA-KIOWA-TILLMAN-
914 PM CDT SUN JUN 19 2011

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING FOR WESTERN OKLAHOMA...

* WIND... SOUTHWEST 20 TO 30 MPH WITH HIGHER GUSTS.

* HUMIDITY... MINIMUM 7 TO 15 PERCENT.

* TEMPERATURE... HIGHS 98 TO 107.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR WEATHER FORECASTS AND INFORMATION.

&&

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 4:30 AM CDT	Fire Weather Watch	OUN	Beckham, Ellis, Greer, Harmon, Harper, Jackson and 2 more	11 hr
Jun 18, 4:40 AM CDT	Heat Advisory	OUN	Comanche, Cotton, Jefferson, Stephens, Tillman	38 hr
Jun 18, 3:49 PM CDT	Special Weather Statement	OUN	Carter	26 min
Jun 18, 4:11 PM CDT	Special Weather Statement	OUN	Carter	19 min
Jun 18, 4:23 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Murray	52 min
Jun 18, 4:44 PM CDT	Special Weather Statement	OUN	Love	31 min
Jun 18, 5:02 PM CDT	Special Weather Statement	OUN	Johnston	28 min
Jun 18, 5:14 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray	61 min
Jun 18, 5:50 PM CDT	Special Weather Statement	OUN	Love	25 min
Jun 18, 5:57 PM CDT	Severe Thunderstorm Warning	OUN	Love, Marshall	48 min
Jun 18, 6:10 PM CDT	Special Weather Statement	OUN	Kay	20 min
Jun 18, 6:15 PM CDT	Severe Thunderstorm Warning	OUN	Kay	30 min
Jun 18, 6:44 PM CDT	Severe Thunderstorm Warning	OUN	Kay	31 min
Jun 18, 6:46 PM CDT	Severe Thunderstorm Warning	OUN	Love, Marshall	59 min
Jun 18, 4:01 PM CDT	Special Weather Statement	OUN	Clay	29 min

Nearby

Red Flag Warnings in Oklahoma, 2011 Red Flag Warnings in Texas, 2011 Every red flag warning in 2011

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.