Alert archive / Oklahoma / Red Flag Warnings in 2013
Red Flag Warning 2, NWS Tulsa, OK
NWS Tulsa, OK issued this red flag warning at Nov 17, 2013, 4:31 AM CST for Pawnee County, Oklahoma. It took effect at Nov 17, 2013, 12:00 PM CST. 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 17, 2013, 4:31 AM CST (10:31 UTC)
- In effect from
- Nov 17, 2013, 12:00 PM CST
- Expired
- Nov 17, 2013, 6:00 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 10:29 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 00:00Z, 10.5 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
- 30 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1455 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 460 m²/s²
- 0-3 km storm-relative helicity
- 521 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
891 WWUS84 KTSA 171031 RFWTSA FIRE WEATHER PRODUCT NATIONAL WEATHER SERVICE TULSA OK 431 AM CST SUN NOV 17 2013 ...CRITICAL FIRE WEATHER CONDITIONS FORECAST NORTHWEST OF TULSA THIS AFTERNOON... .A DRYLINE WILL SURGE EAST INTO ARKANSAS EARLY IN THE DAY...WITH MUCH DRIER AIR MOVING INTO THE REGION. THE COOLING FROM THE PACIFIC FRONT WILL NOT ARRIVE UNTIL LATE. THUS...THERE WILL BE A WINDOW OF TIME THIS AFTERNOON WHEN WINDS COME UP...TEMPS REMAIN WARM AND THE AIR WILL BE DRY. THIS WILL YIELD CRITICAL FIRE WEATHER CONDITIONS FOR A FEW HOURS THIS AFTERNOON MAINLY TO THE NORTHWEST OF TULSA. OKZ054-059-180000- /O.NEW.KTSA.FW.W.0002.131117T1800Z-131118T0000Z/ OSAGE-PAWNEE- 431 AM CST SUN NOV 17 2013 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM CST THIS EVENING... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...PAWNEE AND OSAGE. HAZARDOUS WEATHER... * CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED MAINLY BETWEEN 2 AND 5 PM THIS AFTERNOON NORTHWEST OF TULSA. * RELATIVE HUMIDITIES AS LOW AS 22.0 PERCENT * STRONG WIND GUSTS AS HIGH AS 33 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. * ADDITIONAL WEATHER INFORMATION CAN ALSO BE FOUND AT: WEATHER.GOV/TULSA. && $$ LACY
1 follow-up statement
105 WWUS84 KTSA 172359 RFWTSA FIRE WEATHER PRODUCT NATIONAL WEATHER SERVICE TULSA OK 559 PM CST SUN NOV 17 2013 ...CRITICAL FIRE CONDITIONS HAVE ENDED IN OSAGE AND PAWNEE COUNTIES... .WINDS AND TEMPERATURES HAVE DIMINISHED AND RH VALUES INCREASED. OKZ054-059-180100- /O.EXP.KTSA.FW.W.0002.000000T0000Z-131118T0000Z/ OSAGE-PAWNEE- 559 PM CST SUN NOV 17 2013 ...RED FLAG WARNING WILL EXPIRE AT 6 PM CST THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 6 PM CST THIS EVENING... FOR THE FOLLOWING COUNTIES... * IN OKLAHOMA...PAWNEE AND OSAGE. * THE RED FLAG WARNING THAT WAS IN EFFECT HAS EXPIRED HAZARDOUS WEATHER... * DIMINISHING WINDS AND FALLING TEMPERATURES HAVE DIMINISHED THE FIRE THREAT IN OSAGE AND PAWNEE COUNTIES. && $$
Nearby
Red Flag Warnings in Oklahoma, 2013Every red flag warning in 2013
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.