Alert archive / Oklahoma / Red Flag Warnings in 2011
Red Flag Warning 7, NWS Tulsa, OK
NWS Tulsa, OK issued this red flag warning at Aug 31, 2011, 2:55 PM CDT for 9 counties in Oklahoma. It was in force for 5 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
- Aug 31, 2011, 2:55 PM CDT (19:55 UTC)
- Expired
- Aug 31, 2011, 8:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Tulsa, OK
Counties Craig County, OK, Creek County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Pawnee County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 36 km from the middle of the area, began a volume at 19:52 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
Lamont, OK (KLMN), launched 12:00Z, 7.9 hours before the alert went out and 143 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
- 2515 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
794 WWUS84 KTSA 311955 RFWTSA FIRE WEATHER PRODUCT NATIONAL WEATHER SERVICE TULSA OK 255 PM CDT WED AUG 31 2011 ...DANGEROUS FIRE WEATHER CONDITIONS DEVELOPING ACROSS NORTHEAST OKLAHOMA... OKZ054>057-059>061-064>066-010100- /O.NEW.KTSA.FW.W.0007.110831T1955Z-110901T0100Z/ OSAGE-WASHINGTON OK-NOWATA-CRAIG-PAWNEE-TULSA-ROGERS-CREEK- OKFUSKEE-OKMULGEE- 255 PM CDT WED AUG 31 2011 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...PAWNEE...WASHINGTON...OSAGE...CRAIG...NOWATA... CREEK...OKFUSKEE...OKMULGEE...TULSA AND ROGERS. HAZARDOUS WEATHER... * DANGEROUS FIRE WEATHER CONDITIONS HAVE DEVELOPED THIS AFTERNOON WITH GUSTY SOUTHWEST WINDS TO 30 MPH. THE GUSTY WINDS...COUPLED WITH HIGH TEMPERATURES IN THE 105 TO 110 DEGREE RANGE AND RELATIVE HUMIDITY VALUES BELOW 20 PERCENT WITH CREATE A VERY HIGH FIRE DANGER...PRIMARILY NORTHWEST OF INTERSTATE 44. IMPACTS... * ANY FIRES WILL QUICKLY SPREAD OUT OF CONTROL AND ENDANGER LIVES AND PROPERTY. DEFINITION... * A RED FLAG WARNING MEANS THAT A DANGEROUS COMBINATION OF WEATHER CONDITIONS AND DRY VEGETATION IS EXPECTED WITHIN 24 HOURS...FAVORING RAPID GROWTH AND SPREAD OF ANY WILDFIRES. THE PRIMARY WEATHER FACTORS INCLUDE STRONGER WINDS...LOWER HUMIDITIES...AND WARMER TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... * DISPOSE OF CIGARETTES PROPERLY AND AVOID ACTIVITIES THAT COULD START FIRES. * STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT. ADDITIONAL WEATHER INFORMATION CAN ALSO BE FOUND AT: WEATHER.GOV/TULSA. && $$
1 follow-up statement
143 WWUS84 KTSA 312114 RFWTSA FIRE WEATHER PRODUCT NATIONAL WEATHER SERVICE TULSA OK 414 PM CDT WED AUG 31 2011 ...DANGEROUS FIRE WEATHER CONDITIONS DEVELOPING ACROSS NORTHEAST OKLAHOMA... OKZ054>057-059>061-064>066-010100- /O.CON.KTSA.FW.W.0007.000000T0000Z-110901T0100Z/ OSAGE-WASHINGTON OK-NOWATA-CRAIG-PAWNEE-TULSA-ROGERS-CREEK- OKFUSKEE-OKMULGEE- 414 PM CDT WED AUG 31 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... A RED FLAG WARNING IS IN EFFECT... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...PAWNEE...WASHINGTON...OSAGE...CRAIG...NOWATA... CREEK...OKFUSKEE...OKMULGEE...TULSA AND ROGERS. HAZARDOUS WEATHER... * DANGEROUS FIRE WEATHER CONDITIONS HAVE DEVELOPED THIS AFTERNOON WITH GUSTY SOUTHWEST WINDS TO 30 MPH. THE GUSTY WINDS...COUPLED WITH HIGH TEMPERATURES IN THE 105 TO 110 DEGREE RANGE AND RELATIVE HUMIDITY VALUES BELOW 20 PERCENT WITH CREATE A VERY HIGH FIRE DANGER...PRIMARILY NORTHWEST OF INTERSTATE 44. IMPACTS... * ANY FIRES WILL QUICKLY SPREAD OUT OF CONTROL AND ENDANGER LIVES AND PROPERTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... * DISPOSE OF CIGARETTES PROPERLY AND AVOID ACTIVITIES THAT COULD START FIRES. * STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT. ADDITIONAL WEATHER INFORMATION CAN ALSO BE FOUND AT: WEATHER.GOV/TULSA. && $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 4:17 AM CDT | Heat Advisory | TSA | Craig, Creek, Haskell, Latimer, McIntosh, Mayes and 10 more | 16 hr |
Nearby
Red Flag Warnings in Oklahoma, 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.