Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 84, NWS Tallahassee, FL

August 27, 201111 counties in Florida; 5 counties in Alabama

NWS Tallahassee, FL issued this red flag warning at Aug 27, 2011, 3:30 AM CDT for 11 counties in Florida; 5 counties in Alabama. It took effect at Aug 27, 2011, 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
Aug 27, 2011, 3:30 AM CDT (08:30 UTC)
In effect from
Aug 27, 2011, 1:00 PM CDT
Expired
Aug 27, 2011, 7:00 PM CDT
In force
6 hr
Issued by
NWS Tallahassee, FL

Counties Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Madison County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 77 km from the middle of the area, began a volume at 08:32 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 00:00Z, 8.5 hours before the alert went out and 90 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 00:00Z on 2011-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 569 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 00:00Z on 2011-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
569 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
2219 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

983 
WWUS82 KTAE 270830
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
430 AM EDT SAT AUG 27 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM
CDT THIS EVENING FOR EXTREME SOUTHEAST ALABAMA...
...A RED FLAG WARNING IS IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 8 PM EDT /7 PM CDT/ THIS EVENING FOR MUCH OF THE
INLAND FLORIDA PANHANDLE AND BIG BEND... 
...A FIRE WEATHER WATCH IS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR THESE SAME AREAS BUT EXTENDING EVEN
CLOSER TO THE COAST...

.DRY WEST TO NORTHWEST FLOW WILL REMAIN IN PLACE ACROSS THE
REGION THROUGH THE WEEKEND. WITH MODEST WIND SPEEDS AND HIGH
MIXING HEIGHTS...DISPERSIONS AND HUMIDITY VALUES SHOULD REACH RED
FLAG CRITERIA THIS AFTERNOON OVER MOST OF THE INLAND PANHANDLE
AND BIG BEND. SOUTHEAST ALABAMA IS ALSO EXPECTED TO REACH THEIR
STATE RED FLAG CRITERIA. ANOTHER RED FLAG DAY IS EXPECTED ON
SUNDAY ACROSS MUCH OF NORTHWEST FLORIDA. A GRADUAL INCREASE IN LOW
LEVEL MOISTURE WILL BEGIN MONDAY WITH RAIN CHANCES RETURNING ON
TUESDAY.

FLZ007>011-013-016>019-026-271930-
/O.UPG.KTAE.FW.A.0067.110827T1800Z-110827T2300Z/
/O.NEW.KTAE.FW.W.0084.110827T1800Z-110828T0000Z/
/O.NEW.KTAE.FW.A.0068.110828T1800Z-110829T0000Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-CALHOUN-
GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY-
430 AM EDT SAT AUG 27 2011 /330 AM CDT SAT AUG 27 2011/

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 8 PM EDT /7 PM CDT/ THIS EVENING FOR MUCH OF THE
INLAND FLORIDA PANHANDLE AND BIG BEND... 
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR THESE SAME AREAS BUT EXTENDING EVEN CLOSER TO
THE COAST...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING DUE TO A COMBINATION OF LOW RELATIVE HUMIDITY AND HIGH
DISPERSION. A FIRE WEATHER WATCH IS IN EFFECT FROM SUNDAY
AFTERNOON THROUGH SUNDAY EVENING. 

* WIND...WEST 10 TO 15 MPH AND GUSTY.

* HUMIDITY...FALLING INTO THE UPPER 20S AND LOWER 30S.

* DISPERSION...PEAK VALUES 75 TO 95.

* 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.

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

&&

$$

FLZ012-027-271930-
/O.NEW.KTAE.FW.W.0084.110827T1800Z-110828T0000Z/
/O.NEW.KTAE.FW.A.0068.110828T1800Z-110829T0000Z/
INLAND BAY-INLAND WAKULLA-
430 AM EDT SAT AUG 27 2011 /330 AM CDT SAT AUG 27 2011/

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 8 PM EDT /7 PM CDT/ THIS EVENING FOR MUCH OF THE
INLAND FLORIDA PANHANDLE AND BIG BEND... 
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR THESE SAME AREAS BUT EXTENDING EVEN CLOSER TO
THE COAST...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING DUE TO A COMBINATION OF LOW RELATIVE HUMIDITY AND HIGH
DISPERSION. A FIRE WEATHER WATCH IS IN EFFECT FROM SUNDAY
AFTERNOON THROUGH SUNDAY EVENING. 

* WIND...WEST AROUND 15 MPH AND GUSTY.

* HUMIDITY...DROPPING TO 30 TO 35 PERCENT.

* DISPERSION...PEAK VALUES 85 TO 100.

* 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.

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

&&

$$

ALZ065>069-271930-
/O.NEW.KTAE.FW.W.0084.110827T1800Z-110827T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
330 AM CDT SAT AUG 27 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM
CDT THIS EVENING FOR EXTREME SOUTHEAST ALABAMA...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING DUE TO A COMBINATION OF LOW RELATIVE HUMIDITY...KBDI OVER
500 AND 20 FOOT WINDS OVER 10 MPH.

* WIND...NORTHWEST 10 TO 15 MPH AND GUSTY.

* HUMIDITY...LOWERING TO AROUND 28 PERCENT.

* KBDI...OVER 600.

* 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.

&&

$$

FLZ014-015-028-029-271930-
/O.NEW.KTAE.FW.A.0068.110828T1800Z-110829T0000Z/
INLAND GULF-INLAND FRANKLIN-INLAND TAYLOR-LAFAYETTE-
430 AM EDT SAT AUG 27 2011 /330 AM CDT SAT AUG 27 2011/

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR MUCH OF THE INLAND FLORIDA PANHANDLE AND BIG
BEND...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A FIRE
WEATHER WATCH DUE TO A COMBINATION OF LOW RELATIVE HUMIDITY AND
HIGH DISPERSION.

* WIND...WEST AROUND 15 MPH AND GUSTY.

* HUMIDITY...LOWERING TO 30 TO 35 PERCENT.

* DISPERSION...PEAK VALUES 80 TO 90.

* 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.

&&

$$

18-WOOL
1 follow-up statement
424 
WWUS82 KTAE 272020
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
420 PM EDT SAT AUG 27 2011

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS EVENING
FOR SOUTHEAST ALABAMA DUE TO LONG DURATIONS OF LOW RELATIVE
HUMIDITY...20 FOOT WINDS SPEEDS GREATER THAN 10 MPH AND KBDI
GREATER THAN 500...

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS
EVENING FOR ALL FLORIDA ZONES EXCEPT THE IMMEDIATE COAST AND
DIXIE COUNTY...DUE TO A COMBINATION OF LONG DURATIONS OF RELATIVE 
HUMIDITY BELOW 35 PERCENT...DISPERSIONS ABOVE 75...AND ERC VALUES 
GREATER THAN 35...

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 8 PM
EDT /7 PM CDT/ SUNDAY FOR ALL FLORIDA ZONES EXCEPT THE IMMEDIATE
COAST AND DIXIE COUNTY...DUE TO EXPECTED LONG DURATIONS OF
RELATIVE HUMIDITY BELOW 35 PERCENT...HIGH DISPERSIONS ABOVE 75
AND ERC VALUES ABOVE 35...

...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON FOR SOUTHEAST
ALABAMA DUE TO POSSIBLE LONG DURATIONS OF RELATIVE HUMIDITY BELOW
30 PERCENT...KBDI GREATER THAN 500...AND POSSIBLE 20 FOOT WINDS
GREATER THAN 10 MPH....

FLZ007>013-016>019-026-027-280430-
/O.UPG.KTAE.FW.A.0068.110828T1800Z-110829T0000Z/
/O.NEW.KTAE.FW.W.0085.110828T1800Z-110829T0000Z/
/O.CON.KTAE.FW.W.0084.000000T0000Z-110828T0000Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-
CALHOUN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY-
INLAND WAKULLA-
420 PM EDT SAT AUG 27 2011 /320 PM CDT SAT AUG 27 2011/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM CDT/
THIS EVENING...

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 8 PM
EDT /7 PM CDT/ SUNDAY...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH WILL BE IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 8 PM
EDT /7 PM CDT/ SUNDAY. 

* WIND...WEST 8 TO 12 MPH.

* HUMIDITY...FALLING TO THE UPPER 20 TO LOWER 30 PERCENT.

* DISPERSION...PEAK VALUES 75 TO 85.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

FLZ014-015-028-029-280430-
/O.UPG.KTAE.FW.A.0068.110828T1800Z-110829T0000Z/
/O.NEW.KTAE.FW.W.0085.110828T1800Z-110829T0000Z/
INLAND GULF-INLAND FRANKLIN-INLAND TAYLOR-LAFAYETTE-
420 PM EDT SAT AUG 27 2011 /320 PM CDT SAT AUG 27 2011/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM CDT/
THIS EVENING...

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 8 PM
EDT /7 PM CDT/ SUNDAY...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 8 PM EDT
/7 PM CDT/ SUNDAY. 

* WIND...WEST 8 TO 12 MPH.

* HUMIDITY...LOWERING TO 25 TO 30 PERCENT.

* DISPERSION...PEAK VALUES 75 TO 80.

* 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>069-280430-
/O.NEW.KTAE.FW.A.0069.110828T1800Z-110828T2300Z/
/O.CON.KTAE.FW.W.0084.000000T0000Z-110827T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
320 PM CDT SAT AUG 27 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING...

...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON...

* WIND...NORTHWEST 8 TO 12 MPH.

* HUMIDITY...LOWERING TO 25 TO 30 PERCENT.

* KBDI...OVER 600.

* 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.

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

&&

$$

DUVAL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 9:04 PM CDTSpecial Weather StatementTAEDixie, Lafayette26 min
Aug 27, 3:30 AM CDTFire Weather WatchTAEBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 9 more12 hr
Aug 27, 3:20 PM CDTRed Flag WarningTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more26 hr
Aug 27, 3:20 PM CDTFire Weather WatchTAECoffee, Dale, Geneva, Henry, Houston13 hr

Nearby

Red Flag Warnings in Florida, 2011Red Flag Warnings in Alabama, 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.