Alert archive / Oklahoma / Red Flag Warnings in 2011
Red Flag Warning 11, NWS Tulsa, OK
NWS Tulsa, OK issued this red flag warning at Nov 12, 2011, 12:34 PM CST for Pawnee County, Oklahoma. It was in force for 6 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
- Nov 12, 2011, 12:34 PM CST (18:34 UTC)
- Expired
- Nov 12, 2011, 6:17 PM CST
- In force
- 6 hr
- Issued by
- NWS Tulsa, OK
County Pawnee County, OK
The radar
The Tulsa radar (KINX), 103 km from the middle of the area, began a volume at 18:37 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, 6.6 hours before the alert went out and 137 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
- 2617 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 278 m²/s²
- 0-3 km storm-relative helicity
- 348 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
324 WWUS84 KTSA 121834 RFWTSA FIRE WEATHER PRODUCT NATIONAL WEATHER SERVICE TULSA OK 1234 PM CST SAT NOV 12 2011 OKZ054-059-130100- /O.NEW.KTSA.FW.W.0011.111112T1834Z-111113T0100Z/ OSAGE-PAWNEE- 1234 PM CST SAT NOV 12 2011 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 7 PM CST THIS EVENING... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...PAWNEE AND OSAGE. HAZARDOUS WEATHER... * GUSTY SOUTH WINDS COMBINED WITH RELATIVE HUMIDITY VALUES AROUND 25 PERCENT HAVE RESULTED IN CRITICAL FIRE WEATHER CONDITIONS ACROSS PARTS OF NORTHEAST OKLAHOMA THIS AFTERNOON. CONDITIONS WILL IMPROVE AFTER SUNSET AS TEMPERATURES FALL AND HUMIDITY VALUES RISE. 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. && $$
1 follow-up statement
705 WWUS84 KTSA 130017 RFWTSA FIRE WEATHER PRODUCT NATIONAL WEATHER SERVICE TULSA OK 617 PM CST SAT NOV 12 2011 OKZ054-059-130130- /O.CAN.KTSA.FW.W.0011.000000T0000Z-111113T0100Z/ OSAGE-PAWNEE- 617 PM CST SAT NOV 12 2011 ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN TULSA HAS CANCELLED THE RED FLAG WARNING... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...PAWNEE AND OSAGE. * TEMPERATURES HAVE COOLED AND HUMIDITIES HAVE RISE ABOVE CRITICAL LEVELS. ADDITIONALLY...WIND SPEEDS WILL GRADUALLY LESSEN DURING THE EVENING HOURS WHICH WILL ALSO REDUCE FIRE WEATHER CONCERNS. && $$
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.