Alert archive / Oklahoma / Red Flag Warnings in 2011
Red Flag Warning 13, NWS Norman, OK
NWS Norman, OK issued this red flag warning at Apr 6, 2011, 4:07 PM CDT for 7 counties in Texas; 22 counties in Oklahoma. It took effect at Apr 7, 2011, 11:00 AM 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
- Apr 6, 2011, 4:07 PM CDT (21:07 UTC)
- In effect from
- Apr 7, 2011, 11:00 AM CDT
- Expired
- Apr 7, 2011, 8:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Norman, OK
All 29 counties
Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, Oklahoma County, OK, Roger Mills County, OK, Tillman County, OK, Washita 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), 83 km from the middle of the area, began a volume at 21:09 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
Norman, OK (KOUN), launched 12:00Z, 9.1 hours before the alert went out and 141 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
- 3214 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 490 m²/s²
- 0-3 km storm-relative helicity
- 490 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
478 WWUS84 KOUN 062107 RFWOUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORMAN OK 407 PM CDT WED APR 6 2011 OKZ033-035>037-TXZ083>089-070515- /O.UPG.KOUN.FW.A.0015.110407T1600Z-110408T0100Z/ /O.NEW.KOUN.FW.W.0013.110407T1600Z-110408T0100Z/ /O.CON.KOUN.FW.W.0012.000000T0000Z-110407T0100Z/ HARMON-KIOWA-JACKSON-TILLMAN-HARDEMAN-FOARD-WILBARGER-WICHITA- KNOX-BAYLOR-ARCHER- 407 PM CDT WED APR 6 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY... THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * WIND SPEEDS...20 TO 25 MPH WITH GUSTS OVER 30 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE 80S AND 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$ OKZ014-016-021-022-034-070515- /O.UPG.KOUN.FW.A.0015.110407T1600Z-110408T0100Z/ /O.NEW.KOUN.FW.W.0013.110407T1600Z-110408T0100Z/ ROGER MILLS-CUSTER-BECKHAM-WASHITA-GREER- 407 PM CDT WED APR 6 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY... THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * WIND...NORTH 15 TO 25 MPH WITH GUSTS NEAR 30 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE 80S AND 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$ OKZ038-039-044-045-TXZ090-070100- /O.CON.KOUN.FW.W.0012.000000T0000Z-110407T0100Z/ COMANCHE-STEPHENS-COTTON-JEFFERSON-CLAY- 407 PM CDT WED APR 6 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WIND SPEEDS...15 TO 25 MPH WITH GUSTS OVER 30 MPH. * HUMIDITY...MINIMUM 10 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE 80S AND 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. $$ OKZ004-009-010-015-070515- /O.CON.KOUN.FW.A.0015.110407T1600Z-110408T0100Z/ HARPER-ELLIS-WOODWARD-DEWEY- 407 PM CDT WED APR 6 2011 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... * WIND...SOUTHWEST 15 TO 25 MPH WITH GUSTS NEAR 30 MPH. * HUMIDITY...MINIMUM 10 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE 80S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$
4 follow-up statements
291 WWUS84 KOUN 070238 RFWOUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORMAN OK 938 PM CDT WED APR 6 2011 OKZ014-016-021-022-033>037-TXZ083>089-071045- /O.CON.KOUN.FW.W.0013.110407T1600Z-110408T0100Z/ ROGER MILLS-CUSTER-BECKHAM-WASHITA-HARMON-GREER-KIOWA-JACKSON- TILLMAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER- 938 PM CDT WED APR 6 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY FOR PARTS OF WESTERN OKLAHOMA AND NORTH TEXAS... * WINDS...SOUTH TO SOUTHWEST 20 TO 25 MPH WITH GUSTS OVER 30 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE 80S AND LOW 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$ OKZ004-009-010-015-071045- /O.CON.KOUN.FW.A.0015.110407T1600Z-110408T0100Z/ HARPER-ELLIS-WOODWARD-DEWEY- 938 PM CDT WED APR 6 2011 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR NORTHWEST OKLAHOMA... * WIND...SOUTHWEST 15 TO 25 MPH WITH GUSTS NEAR 30 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE 80S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$
750 WWUS84 KOUN 070944 RFWOUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORMAN OK 444 AM CDT THU APR 7 2011 OKZ004-010-015-071045- /O.CAN.KOUN.FW.A.0015.110407T1600Z-110408T0100Z/ HARPER-WOODWARD-DEWEY- 444 AM CDT THU APR 7 2011 ...FIRE WEATHER WATCH IS CANCELLED FOR PORTIONS OF NORTHWESTERN OKLAHOMA... THE NATIONAL WEATHER SERVICE IN NORMAN HAS CANCELLED THE FIRE WEATHER WATCH FOR HARPER... WOODWARD AND DEWEY COUNTIES AS SUSTAINED WIND SPEEDS ARE EXPECTED TO REMAIN 20 MPH OR BELOW. HOWEVER FIRE DANGER REMAINS VERY HIGH AND CAUTION IS URGED TO PREVENT THE START OR SPREAD OF WILDFIRES. $$ OKZ009-071745- /O.UPG.KOUN.FW.A.0015.110407T1600Z-110408T0100Z/ /O.EXA.KOUN.FW.W.0013.110407T1600Z-110408T0100Z/ ELLIS- 444 AM CDT THU APR 7 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING FOR VERY WARM... DRY AND BREEZY WEATHER FOR MUCH OF WESTERN OKLAHOMA... THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * WINDS...20 TO 25 MPH WITH GUSTS OVER 25 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE MID 80S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$ OKZ014-016-021-022-033>037-TXZ083>089-071745- /O.CON.KOUN.FW.W.0013.110407T1600Z-110408T0100Z/ ROGER MILLS-CUSTER-BECKHAM-WASHITA-HARMON-GREER-KIOWA-JACKSON- TILLMAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER- 444 AM CDT THU APR 7 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING FOR VERY WARM... DRY AND BREEZY CONDITIONS FOR MUCH OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS... * WINDS...SOUTH TO SOUTHWEST 20 TO 25 MPH WITH GUSTS OVER 30 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE MID 80S AND LOW 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$
672 WWUS84 KOUN 071452 RFWOUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORMAN OK 952 AM CDT THU APR 7 2011 OKZ004-010-015-072300- /O.EXA.KOUN.FW.W.0013.110407T1600Z-110408T0100Z/ HARPER-WOODWARD-DEWEY- 952 AM CDT THU APR 7 2011 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR WARM...DRY...AND BREEZY CONDITIONS FOR NORTHWEST OKLAHOMA... THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING. * WINDS...SOUTH TO SOUTHWEST 15 TO 25 MPH WITH GUSTS OVER 25 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE MID 80S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$ OKZ009-014-016-021-022-033>037-TXZ083>089-072300- /O.CON.KOUN.FW.W.0013.110407T1600Z-110408T0100Z/ ELLIS-ROGER MILLS-CUSTER-BECKHAM-WASHITA-HARMON-GREER-KIOWA- JACKSON-TILLMAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR- ARCHER- 952 AM CDT THU APR 7 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR VERY WARM...DRY...AND BREEZY CONDITIONS FOR PARTS OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS... * WINDS...SOUTH TO SOUTHWEST 20 TO 25 MPH WITH GUSTS OVER 30 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...AFTERNOON TEMPERATURES IN THE MID 80S AND LOW 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$
437 WWUS84 KOUN 072057 RFWOUN URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE NORMAN OK 357 PM CDT THU APR 7 2011 OKZ011-017-023-038-080300- /O.NEW.KOUN.FW.A.0016.110408T1700Z-110409T0200Z/ /O.EXA.KOUN.FW.W.0013.000000T0000Z-110408T0100Z/ MAJOR-BLAINE-CADDO-COMANCHE- 357 PM CDT THU APR 7 2011 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR WESTERN OKLAHOMA... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR WESTERN OKLAHOMA... * WINDS...SOUTHWEST 20 TO 25 MPH WITH GUSTS OVER 35 MPH. * HUMIDITY...15 TO 20 PERCENT. * TEMPERATURE...UPPER 80S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. MONITOR WEATHER FORECASTS AND INFORMATION. && $$ OKZ018-019-024-025-027-080100- /O.EXA.KOUN.FW.W.0013.000000T0000Z-110408T0100Z/ KINGFISHER-LOGAN-CANADIAN-OKLAHOMA-GRADY- 357 PM CDT THU APR 7 2011 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR PARTS OF CENTRAL OKLAHOMA... THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING. * WINDS...SOUTHWEST AROUND 20 MPH WITH GUSTS OVER 30 MPH. * HUMIDITY...MINIMUM 15 TO 20 PERCENT. * TEMPERATURE...NEAR 90 DEGREES. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$ OKZ004-009-010-014>016-021-022-033>037-TXZ083>085-087-080300- /O.NEW.KOUN.FW.A.0016.110408T1700Z-110409T0200Z/ /O.CON.KOUN.FW.W.0013.000000T0000Z-110408T0100Z/ HARPER-ELLIS-WOODWARD-ROGER MILLS-DEWEY-CUSTER-BECKHAM-WASHITA- HARMON-GREER-KIOWA-JACKSON-TILLMAN-HARDEMAN-FOARD-WILBARGER-KNOX- 357 PM CDT THU APR 7 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR PARTS OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR PARTS OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS... THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING. * WINDS...SOUTHWEST AROUND 25 MPH WITH GUSTS OVER 35 MPH. * HUMIDITY...10 TO 17 PERCENT. * TEMPERATURE...LOWER 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. MONITOR WEATHER FORECASTS AND INFORMATION. && $$ TXZ086-088-089-080100- /O.CON.KOUN.FW.W.0013.000000T0000Z-110408T0100Z/ WICHITA-BAYLOR-ARCHER- 357 PM CDT THU APR 7 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR WICHITA...BAYLOR...AND ARCHER COUNTIES... * WINDS...SOUTHWEST AROUND 25 MPH WITH GUSTS OVER 35 MPH. * HUMIDITY...MINIMUM 10 TO 17 PERCENT. * TEMPERATURE...LOWER 90S. * IMPACTS...ANY FIRES THAT DEVELOP WILL SPREAD RAPIDLY. OUTDOOR BURNING IS DISCOURAGED. PRECAUTIONARY/PREPAREDNESS ACTIONS... FIRES MAY START EASILY AND SPREAD RAPIDLY. TAKE PRECAUTIONS TO AVOID THE START AND SPREAD OF WILDFIRES. REPORT SMOKE OR FIRE TO YOUR LOCAL FIRE DEPARTMENT. && $$
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 5:04 AM CDT | Red Flag Warning | OUN | Archer, Baylor, Clay, Foard, Hardeman, Knox and 2 more | 15 hr |
Nearby
Red Flag Warnings in Oklahoma, 2011Red Flag Warnings in Texas, 2011Every 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.