Alert archive / Oklahoma / Red Flag Warnings in 2008

Red Flag Warning 2, NWS Tulsa, OK

April 15, 200817 counties in Oklahoma

NWS Tulsa, OK issued this red flag warning at Apr 15, 2008, 3:57 AM CDT for 17 counties in Oklahoma. It took effect at Apr 15, 2008, 1:00 PM CDT. 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
Apr 15, 2008, 3:57 AM CDT (08:57 UTC)
In effect from
Apr 15, 2008, 1:00 PM CDT
Expired
Apr 15, 2008, 7:00 PM CDT
In force
6 hr
Issued by
NWS Tulsa, OK

Counties 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, Pawnee County, OK, Pittsburg County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 12 km from the middle of the area, began a volume at 09:00 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, 9.0 hours before the alert went out and 186 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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2008-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2008-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2466 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS84 KTSA 150857
RFWTSA

RED FLAG WARNING
NATIONAL WEATHER SERVICE TULSA OK
357 AM CDT TUE APR 15 2008

OKZ054>068-070-071-073-151700-
/O.UPG.KTSA.FW.A.0002.080415T1800Z-080416T0000Z/
/O.NEW.KTSA.FW.W.0002.080415T1800Z-080416T0000Z/
OSAGE-WASHINGTON OK-NOWATA-CRAIG-OTTAWA-PAWNEE-TULSA-ROGERS-MAYES-
DELAWARE-CREEK-OKFUSKEE-OKMULGEE-WAGONER-CHEROKEE-MUSKOGEE-
MCINTOSH-PITTSBURG-
357 AM CDT TUE APR 15 2008

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM CDT
THIS EVENING FOR THE FOLLOWING COUNTIES...

IN OKLAHOMA...
OSAGE...WASHINGTON...NOWATA...CRAIG...OTTAWA...PAWNEE...TULSA...
ROGERS...MAYES...DELAWARE...CREEK...OKFUSKEE...OKMULGEE...
WAGONER...CHEROKEE...MUSKOGEE...MCINTOSH...PITTSBURG.

THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

STRONG SOUTHERLY WINDS WILL DEVELOP BY EARLY AFTERNOON ACROSS
PORTIONS OF EASTERN OKLAHOMA WITH GUSTS RANGING FROM 35 TO 40 MPH.
THE GUSTY WINDS...COUPLED WITH WARM TEMPERATURES AND RELATIVE
HUMIDITY VALUES FALLING TO AROUND 25 PERCENT WILL CREATE DANGEROUS
FIRE WEATHER CONDITIONS. 

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. PRIMARY
WEATHER FACTORS INCLUDE STRONGER WINDS...LOWER HUMIDITIES...AND
WARMER TEMPERATURES.

DISPOSE OF CIGARETTES PROPERLY AND AVOID ACTIVITIES THAT COULD
START FIRES. ANY FIRES MAY QUICKLY SPREAD AND BE DIFFICULT TO
CONTROL.

$$
3 follow-up statements
000 
WWUS84 KTSA 151632
RFWTSA

RED FLAG WARNING
NATIONAL WEATHER SERVICE TULSA OK
1132 AM CDT TUE APR 15 2008

OKZ054>068-070-071-073-160000-
/O.CON.KTSA.FW.W.0002.080415T1800Z-080416T0000Z/
OSAGE-WASHINGTON OK-NOWATA-CRAIG-OTTAWA-PAWNEE-TULSA-ROGERS-MAYES-
DELAWARE-CREEK-OKFUSKEE-OKMULGEE-WAGONER-CHEROKEE-MUSKOGEE-
MCINTOSH-PITTSBURG-
1132 AM CDT TUE APR 15 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
FOR THE FOLLOWING COUNTIES...

IN OKLAHOMA...
OSAGE...WASHINGTON...NOWATA...CRAIG...OTTAWA...PAWNEE...TULSA...
ROGERS...MAYES...DELAWARE...CREEK...OKFUSKEE...OKMULGEE...
WAGONER...CHEROKEE...MUSKOGEE...MCINTOSH...PITTSBURG.

STRONG SOUTHERLY WINDS WILL CONTINUE ACROSS PORTIONS OF EASTERN 
OKLAHOMA WITH GUSTS RANGING FROM 35 TO 40 MPH. THE GUSTY WINDS...
COUPLED WITH WARM TEMPERATURES AND RELATIVE HUMIDITY VALUES FALLING 
TO AROUND 25 PERCENT WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS.
THE FIRE WEATHER CONDITIONS WILL IMPROVE THIS EVENING AS TEMPERATURES
FALL AND THE RELATIVE HUMIDITY INCREASES. 

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. PRIMARY
WEATHER FACTORS INCLUDE STRONGER WINDS...LOWER HUMIDITIES...AND
WARMER TEMPERATURES.

DISPOSE OF CIGARETTES PROPERLY AND AVOID ACTIVITIES THAT COULD
START FIRES. ANY FIRES MAY QUICKLY SPREAD AND BE DIFFICULT TO
CONTROL.

$$
000 
WWUS84 KTSA 152032
RFWTSA

RED FLAG WARNING
NATIONAL WEATHER SERVICE TULSA OK
332 PM CDT TUE APR 15 2008

OKZ054>068-070-071-073-160000-
/O.CON.KTSA.FW.W.0002.000000T0000Z-080416T0000Z/
OSAGE-WASHINGTON OK-NOWATA-CRAIG-OTTAWA-PAWNEE-TULSA-ROGERS-MAYES-
DELAWARE-CREEK-OKFUSKEE-OKMULGEE-WAGONER-CHEROKEE-MUSKOGEE-
MCINTOSH-PITTSBURG-
332 PM CDT TUE APR 15 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
FOR THE FOLLOWING COUNTIES...

IN OKLAHOMA...
OSAGE...WASHINGTON...NOWATA...CRAIG...OTTAWA...PAWNEE...TULSA...
ROGERS...MAYES...DELAWARE...CREEK...OKFUSKEE...OKMULGEE...
WAGONER...CHEROKEE...MUSKOGEE...MCINTOSH...AND PITTSBURG.

FIRE WEATHER CONDITIONS REMAIN NEAR RED FLAG CRITERIA THIS
AFTERNOON AND WILL SLOWLY IMPROVE BY EARLY EVENING. STRONG
SOUTHERLY WINDS WILL BE MAINTAINED...HOWEVER HUMIDITY VALUES WILL
GRADULLY RISE AS TEMPERATURES COOL. PRIOR TO SUNSET...ANY WILDFIRE
WILL HAVE POTENTIAL FOR AGGRESSIVE FIRE BEHAVIOR.

THIS RED FLAG WARNING MEANS THAT A DANGEROUS COMBINATION OF
WEATHER CONDITIONS AND DRY VEGETATION IS EXPECTED THROUGH 
SUNSET...FAVORING RAPID GROWTH AND SPREAD OF ANY WILDFIRES.
PRIMARY WEATHER FACTORS INCLUDE STRONGER WINDS...LOWER
HUMIDITIES...AND WARMER TEMPERATURES.

$$
000 
WWUS84 KTSA 160005
RFWTSA

RED FLAG WARNING
NATIONAL WEATHER SERVICE TULSA OK
705 PM CDT TUE APR 15 2008

OKZ054>068-070-071-073-160115-
/O.EXP.KTSA.FW.W.0002.000000T0000Z-080416T0000Z/
OSAGE-WASHINGTON OK-NOWATA-CRAIG-OTTAWA-PAWNEE-TULSA-ROGERS-MAYES-
DELAWARE-CREEK-OKFUSKEE-OKMULGEE-WAGONER-CHEROKEE-MUSKOGEE-
MCINTOSH-PITTSBURG-
705 PM CDT TUE APR 15 2008

...RED FLAG WARNING HAS EXPIRED...

THE RED FLAG WARNING IS NO LONGER IN EFFECT FOR THE FOLLOWING
COUNTIES...

IN OKLAHOMA...
OSAGE...WASHINGTON...NOWATA...CRAIG...OTTAWA...PAWNEE...TULSA...
ROGERS...MAYES...DELAWARE...CREEK...OKFUSKEE...OKMULGEE...
WAGONER...CHEROKEE...MUSKOGEE...MCINTOSH...PITTSBURG.

COOLING TEMPERATURES AND INCREASING HUMIDITY VALUES WILL LESSEN
THE WILDFIRE THREAT AS THE EVENING PROGRESSES.

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 3:50 AM CDTWind AdvisoryTSAPawnee15 hr

Nearby

Red Flag Warnings in Oklahoma, 2008Every red flag warning in 2008

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.