Alert archive / Oklahoma / Red Flag Warnings in 2011
Red Flag Warning 12, NWS Tulsa, OK
NWS Tulsa, OK issued this red flag warning at Dec 31, 2011, 3:39 AM CST for 15 counties in Oklahoma; Benton County, Carroll County, Washington County, Arkansas. It took effect at Dec 31, 2011, 11:00 AM CST. It was in force for 7 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
- Dec 31, 2011, 3:39 AM CST (09:39 UTC)
- In effect from
- Dec 31, 2011, 11:00 AM CST
- Expired
- Dec 31, 2011, 6:00 PM CST
- In force
- 7 hr
- Issued by
- NWS Tulsa, OK
Counties Benton County, AR, Carroll County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Tulsa radar (KINX), 31 km from the middle of the area, began a volume at 09:38 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
Springfield, MO (KSGF), launched 00:00Z, 9.7 hours before the alert went out and 155 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
- 2805 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 274 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
306 WWUS84 KTSA 310939 RFWTSA FIRE WEATHER PRODUCT NATIONAL WEATHER SERVICE TULSA OK 339 AM CST SAT DEC 31 2011 ...RED FLAG WARNING FOR PARTS OF NORTHEAST OKLAHOMA SATURDAY... OKZ056>058-060>062-064-010000- /O.UPG.KTSA.FW.A.0007.111231T1600Z-120101T0000Z/ /O.NEW.KTSA.FW.W.0012.111231T1700Z-120101T0000Z/ NOWATA-CRAIG-OTTAWA-TULSA-ROGERS-MAYES-CREEK- 339 AM CST SAT DEC 31 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS EVENING... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...OTTAWA...ROGERS...CRAIG...NOWATA...CREEK... TULSA AND MAYES. * THIS WARNING REPLACES THE RED FLAG WATCH THAT WAS IN EFFECT HAZARDOUS WEATHER... * UNSEASONABLY WARM AND DRY CONDITIONS WILL CONTINUE ACROSS THE REGION TODAY. IN RESPONSE TO A COLD FRONT APPROACHING THE AREA... GUSTY SOUTHERLY WINDS WILL INCREASE ABOUT MID DAY... AND BECOME QUITE STRONG DURING THE AFTERNOON HOURS. WITH DRY FINE FUELS IN ABUNDANCE... DANGEROUS WILDFIRE CONDITIONS WILL EXIST WITHIN THE WARNED AREA. WINDS SHIFTING TO THE NORTHWEST AFTER FRONTAL PASSAGE WILL EXACERBATE PROBLEMS FIGHTING ANY FIRES THAT DO OCCUR. * RELATIVE HUMIDITIES AS LOW AS 19.0 PERCENT * STRONG WIND GUSTS AS HIGH AS 37 MPH 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. && $$ ARZ001-002-010-OKZ063-065>071-010000- /O.NEW.KTSA.FW.W.0012.111231T1700Z-120101T0000Z/ BENTON-CARROLL-WASHINGTON AR-DELAWARE-OKFUSKEE-OKMULGEE-WAGONER- CHEROKEE-ADAIR-MUSKOGEE-MCINTOSH- 339 AM CST SAT DEC 31 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS EVENING... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...WAGONER...CHEROKEE...ADAIR...OKFUSKEE... MCINTOSH...MUSKOGEE...OKMULGEE AND DELAWARE. IN ARKANSAS... BENTON...WASHINGTON AND CARROLL. HAZARDOUS WEATHER... * UNSEASONABLY WARM AND DRY CONDITIONS WILL CONTINUE ACROSS THE REGION TODAY. IN RESPONSE TO A COLD FRONT APPROACHING THE AREA... GUSTY SOUTHERLY WINDS WILL INCREASE ABOUT MID DAY... AND BECOME QUITE STRONG DURING THE AFTERNOON HOURS. WITH DRY FINE FUELS IN ABUNDANCE... DANGEROUS WILDFIRE CONDITIONS WILL EXIST WITHIN THE WARNED AREA. WINDS SHIFTING TO THE NORTHWEST AFTER FRONTAL PASSAGE WILL EXACERBATE PROBLEMS FIGHTING ANY FIRES THAT DO OCCUR. * RELATIVE HUMIDITIES AS LOW AS 21.0 PERCENT * STRONG WIND GUSTS AS HIGH AS 35 MPH IMPACTS... * ANY FIRES WILL QUICKLY SPREAD OUT OF CONTROL AND ENDANGER LIVES AND PROPERTY. DEFINITION... * A RED FLAG WARNING MEANS THAT A DANGEROUS COMBINATION OF WEATHER CONDITIONS AND DRY VEGETATION IS EXPECTED WITHIN 24 HOURS...FAVORING RAPID GROWTH AND SPREAD OF ANY WILDFIRES. THE PRIMARY WEATHER FACTORS INCLUDE STRONGER WINDS...LOWER HUMIDITIES...AND WARMER TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... * DISPOSE OF CIGARETTES PROPERLY AND AVOID ACTIVITIES THAT COULD START FIRES. * STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT. ADDITIONAL WEATHER INFORMATION CAN ALSO BE FOUND AT: WEATHER.GOV/TULSA. && $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 31, 11:14 AM CST | Wind Advisory | TSA | Craig, Delaware, Mayes, Nowata, Ottawa, Pawnee and 3 more | 7 hr |
Nearby
Red Flag Warnings in Oklahoma, 2011Red Flag Warnings in Arkansas, 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.