Alert archive / Oklahoma / Red Flag Warnings in 2012

Red Flag Warning 15, NWS Tulsa, OK

September 25, 20125 counties in Oklahoma

NWS Tulsa, OK issued this red flag warning at Sep 25, 2012, 3:43 AM CDT for 5 counties in Oklahoma. It took effect at Sep 25, 2012, 12:00 PM CDT. 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
Sep 25, 2012, 3:43 AM CDT (08:43 UTC)
In effect from
Sep 25, 2012, 12:00 PM CDT
Expired
Sep 25, 2012, 7:00 PM CDT
In force
7 hr
Issued by
NWS Tulsa, OK

Counties Choctaw County, OK, Haskell County, OK, Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 116 km from the middle of the area, began a volume at 08:47 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, 8.7 hours before the alert went out and 191 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 2012-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 464 joules per kilogram.LCLLFCEL10008507005003002001001 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 2012-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 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
464 J/kg
Mixed-layer CIN
-144 J/kg
Mixed-layer LCL
2532 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
35 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.

422 
WWUS84 KTSA 250843
RFWTSA

FIRE WEATHER PRODUCT
NATIONAL WEATHER SERVICE TULSA OK
343 AM CDT TUE SEP 25 2012

OKZ054-055-059>061-064>067-070-071-250945-
/O.CAN.KTSA.FW.A.0007.120925T1700Z-120926T0200Z/
OSAGE-WASHINGTON OK-PAWNEE-TULSA-ROGERS-CREEK-OKFUSKEE-OKMULGEE-
WAGONER-MUSKOGEE-MCINTOSH-
343 AM CDT TUE SEP 25 2012

...FIRE WEATHER WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN TULSA HAS CANCELLED THE FIRE 
WEATHER WATCH...

FOR THE FOLLOWING COUNTIES...
 * IN OKLAHOMA...WAGONER...MUSKOGEE...ROGERS...MCINTOSH... 
   CREEK...WASHINGTON...OSAGE...OKFUSKEE...PAWNEE...OKMULGEE AND 
   TULSA. 

 * THE RED FLAG WATCH THAT WAS IN EFFECT HAS BEEN CANCELLED

&&

$$

OKZ049-053-073>076-252100-
/O.UPG.KTSA.FW.A.0007.120925T1700Z-120926T0200Z/
/O.NEW.KTSA.FW.W.0015.120925T1700Z-120926T0000Z/
PUSHMATAHA-CHOCTAW-PITTSBURG-HASKELL-LATIMER-LE FLORE-
343 AM CDT TUE SEP 25 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A RED FLAG 
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS 
EVENING...

FOR THE FOLLOWING COUNTIES...
 * IN OKLAHOMA...CHOCTAW...PITTSBURG...PUSHMATAHA...LE FLORE... 
   LATIMER AND HASKELL. 

 * THIS WARNING REPLACES THE RED FLAG WATCH THAT WAS IN EFFECT

HAZARDOUS WEATHER...
 * CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED TO DEVELOP OVER
   SOUTHEAST OKLAHOMA THIS AFTERNOON. RAPID WILDFIRE GROWTH AND
   SPREAD COULD OCCUR IN THIS AREA IF A FIRE GETS STARTED.

 * RELATIVE HUMIDITIES AS LOW AS 21.0 PERCENT

 * STRONG WIND GUSTS AS HIGH AS 32 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. 

&&

$$
1 follow-up statement
485 
WWUS84 KTSA 252142
RFWTSA

FIRE WEATHER PRODUCT
NATIONAL WEATHER SERVICE TULSA OK
442 PM CDT TUE SEP 25 2012

OKZ049-053-073>076-260000-
/O.CON.KTSA.FW.W.0015.000000T0000Z-120926T0000Z/
PUSHMATAHA-CHOCTAW-PITTSBURG-HASKELL-LATIMER-LE FLORE-
442 PM CDT TUE SEP 25 2012

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

A RED FLAG WARNING IS IN EFFECT...

FOR THE FOLLOWING COUNTIES...
 * IN OKLAHOMA...CHOCTAW...PITTSBURG...PUSHMATAHA...LE FLORE... 
   LATIMER AND HASKELL. 

HAZARDOUS WEATHER...
 * HOT TEMPERATURES AND GUSTY SOUTH WINDS HAVE DEVELOPED THIS
   AFTERNOON...WITH TEMPERATURES SLOWLY COOLING TOWARD SUNSET.
   WINDS WILL BE SLOW TO DIMINISH...HOWEVER GUST SPEEDS WILL
   ALSO DIMINISH TOWARD SUNSET.

 * LOW RELATIVE HUMIDITIES OF 20 TO 25 PERCENT.

 * STRONG WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH.

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. 

&&

$$

Nearby

Red Flag Warnings in Oklahoma, 2012Every red flag warning in 2012

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.