Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 98, NWS Tallahassee, FL

October 13, 201116 counties in Florida

NWS Tallahassee, FL issued this red flag warning at Oct 13, 2011, 2:21 PM CDT for 16 counties in Florida. It took effect at Oct 14, 2011, 1:00 PM CDT. It was in force for . No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 13, 2011, 2:21 PM CDT (19:21 UTC)
In effect from
Oct 14, 2011, 1:00 PM CDT
Expired
Oct 14, 2011, 3:34 AM CDT
In force
Issued by
NWS Tallahassee, FL

Counties Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The radar

The Tallahassee radar (KTLH), 32 km from the middle of the area, began a volume at 19:23 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.4 hours before the alert went out and 35 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, Tallahassee Rgnl, FL at 12:00Z on 2011-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 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, Tallahassee Rgnl, FL at 12:00Z on 2011-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
55 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
738 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

827 
WWUS82 KTAE 131921
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
321 PM EDT THU OCT 13 2011

...A RED FLAG WARNING IS NOW IN EFFECT FROM 2 PM EDT /1 PM CDT/
TO 7 PM EDT /6 PM CDT/ FRIDAY FOR ALL OF THE FLORIDA BIG BEND AND
EASTERN PANHANDLE DUE TO A COMBINATION OF RELATIVE HUMIDITY BELOW
35 PERCENT AND DISPERSION INDICES OVER 75...

...A FIRE WEATHER WATCH REMAINS IN EFFECT FRIDAY AFTERNOON FOR
SOUTHEAST ALABAMA DUE TO A COMBINATION OF RELATIVE HUMIDITY BELOW
30 PERCENT...20 FOOT WIND SPEEDS AROUND 10 MPH...AND KBDI VALUES
OVER 500...

.A COLD FRONT WILL CROSS THE REGION THIS EVENING AND USHER IN A
DRIER AIR MASS FOR THE END OF THE WEEK. RELATIVE HUMIDITY VALUES
ARE EXPECTED TO DROP BELOW CRITICAL LEVELS ON FRIDAY OVER MUCH OF
THE AREA. CONFIDENCE IS NOW HIGH ENOUGH TO UPGRADE TO A RED FLAG
WARNING FOR OUR FLORIDA ZONES. IN SOUTHEAST ALABAMA...WINDS WILL
BE MARGINAL. THEREFORE...THE WATCH WILL REMAIN IN PLACE THERE.
RELATIVE HUMIDITY VALUES EXPECTED TO REACH CRITICAL LEVELS OVER
PORTIONS OF SOUTHWEST AND SOUTH CENTRAL GEORGIA AS WELL.
HOWEVER...WINDS ARE NOT EXPECTED TO SUPPORT RED FLAG CRITERIA.
SATURDAY LOOKS LIKE ANOTHER VERY DRY DAY WITH RED FLAG CONDITIONS
LIKELY IN FLORIDA. THE NEXT CHANCE FOR RAIN WILL NOT COME UNTIL AT
LEAST TUESDAY.

FLZ007>019-026>029-141130-
/O.UPG.KTAE.FW.A.0080.111014T1700Z-111014T2300Z/
/O.NEW.KTAE.FW.W.0098.111014T1800Z-111014T2300Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-
CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-
MADISON-LIBERTY-INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-
321 PM EDT THU OCT 13 2011 /221 PM CDT THU OCT 13 2011/

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 7 PM
EDT /6 PM CDT/ FRIDAY FOR ALL OF THE FLORIDA BIG BEND AND
EASTERN PANHANDLE...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING DUE TO A COMBINATION OF RELATIVE HUMIDITY BELOW 35
PERCENT AND DISPERSION INDICES OVER 75. THE FIRE WEATHER WATCH IS
NO LONGER IN EFFECT.

* AFFECTED AREA...FIRE WEATHER ZONES 007...008...009...010...011...
  012...013...014...015...016...017...018...019...026...027...028
  AND 029.

* WIND...NORTHWEST AROUND 10 MPH.

* HUMIDITY...MINIMUM 23 TO 29 PERCENT.

* DISPERSION INDEX...90 TO 107.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY
WILL ENHANCE FIRE GROWTH POTENTIAL.

&&

$$

FLZ034-108-112-114-115-118-127-128-134-141130-
/O.NEW.KTAE.FW.W.0098.111014T1800Z-111014T2300Z/
INLAND DIXIE-SOUTH WALTON-COASTAL BAY-COASTAL GULF-
COASTAL FRANKLIN-COASTAL JEFFERSON-COASTAL WAKULLA-COASTAL TAYLOR-
COASTAL DIXIE-
321 PM EDT THU OCT 13 2011 /221 PM CDT THU OCT 13 2011/

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 7 PM
EDT /6 PM CDT/ FRIDAY FOR ALL OF THE FLORIDA BIG BEND AND EASTERN
PANHANDLE...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING DUE TO A COMBINATION OF RELATIVE HUMIDITY BELOW 35 PERCENT
AND DISPERSION INDICES OVER 75.

* AFFECTED AREA...FIRE WEATHER ZONES 034...108...112...114... 
  115...118...127...128 AND 134. 

* WIND...NORTH AROUND 10 MPH BECOMING NORTHWEST.

* HUMIDITY...MINIMUM 26 TO 35 PERCENT.

* DISPERSION INDEX...90 TO 107.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY
WILL ENHANCE FIRE GROWTH POTENTIAL.

&&

$$

ALZ065>069-141130-
/O.CON.KTAE.FW.A.0080.111014T1800Z-111014T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
221 PM CDT THU OCT 13 2011

...FIRE WEATHER WATCH REMAINS IN EFFECT FRIDAY AFTERNOON FOR
SOUTHEAST ALABAMA...

* AFFECTED AREA...FIRE WEATHER ZONES 065...066...067...068 AND 069.

* WIND...NORTHWEST AROUND 10 MPH.

* HUMIDITY...MINIMUM 22 TO 25 PERCENT.

* KBDI...OVER 500.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE POSSIBLE. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG
WARNINGS.

&&

$$

WOOL/LAMERS
1 follow-up statement
712 
WWUS82 KTAE 140834
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
434 AM EDT FRI OCT 14 2011

...RED FLAG WARNING IS CANCELLED FOR THE EASTERN FLORIDA
PANHANDLE AND FLORIDA BIG BEND ZONES...

...FIRE WEATHER WATCH IS CANCELLED FOR THE SOUTHEAST ALABAMA
ZONES...

.A RIDGE OF HIGH PRESSURE WILL QUICKLY BUILD OVERHEAD THROUGH
TODAY IN THE WAKE OF A WEAK COLD FRONT. ALTHOUGH RELATIVE
HUMIDITY IS EXPECTED TO DROP BELOW CRITICAL LEVELS THIS AFTERNOON
ACROSS THE REGION...THE FASTER ARRIVAL OF THE RIDGE OF HIGH
PRESSURE IS NOW EXPECTED TO PREVENT DISPERSION INDICES FROM
REACHING CRITICAL LEVELS ACROSS THE EASTERN FLORIDA PANHANDLE AND
FLORIDA BIG BEND. THEREFORE THE RED FLAG WARNING WHICH HAD BEEN IN
EFFECT HAS BEEN CANCELLED. WINDS ARE ALSO GENERALLY EXPECTED TO
REMAIN BELOW 10 MPH THIS AFTERNOON ACROSS SOUTHEAST ALABAMA...AND
THE FIRE WEATHER WATCH WHICH HAD BEEN IN EFFECT HAS ALSO BEEN
CANCELLED.

FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-140945-
/O.CAN.KTAE.FW.W.0098.111014T1800Z-111014T2300Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-
CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-
MADISON-LIBERTY-INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-
INLAND DIXIE-SOUTH WALTON-COASTAL BAY-COASTAL GULF-
COASTAL FRANKLIN-COASTAL JEFFERSON-COASTAL WAKULLA-COASTAL TAYLOR-
COASTAL DIXIE-
434 AM EDT FRI OCT 14 2011 /334 AM CDT FRI OCT 14 2011/

...RED FLAG WARNING IS CANCELLED FOR THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS CANCELLED THE
RED FLAG WARNING.

DISPERSION INDICES ARE NOW LONGER EXPECTED TO REACH CRITICAL
LEVELS THIS AFTERNOON. THEREFORE THE RED FLAG WARNING WHICH HAD
BEEN IN EFFECT HAS BEEN CANCELLED.

$$

ALZ065>069-140945-
/O.CAN.KTAE.FW.A.0080.111014T1800Z-111014T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
334 AM CDT FRI OCT 14 2011

...FIRE WEATHER WATCH IS CANCELLED FOR THIS AFTERNOON...

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

20 FOOT WINDS ARE NOW GENERALLY EXPECTED TO REMAIN BELOW 10 MPH
THIS AFTERNOON. THEREFORE THE FIRE WEATHER WATCH WHICH HAD BEEN IN
EFFECT HAS BEEN CANCELLED.

$$

14-MROCZKA

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 13, 4:06 AM CDTFire Weather WatchTAEBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 9 more23 hr

Nearby

Red Flag Warnings in Florida, 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.