Alert archive / Alabama / Red Flag Warnings in 2011

Red Flag Warning 103, NWS Tallahassee, FL

October 30, 2011Gadsden County, Leon County, Wakulla County, Florida; 5 counties in Alabama

NWS Tallahassee, FL issued this red flag warning at Oct 30, 2011, 3:48 AM EDT for Gadsden County, Leon County, Wakulla County, Florida; 5 counties in Alabama. It took effect at Oct 30, 2011, 2:00 PM EDT. It was in force for 5 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
Oct 30, 2011, 3:48 AM EDT (07:48 UTC)
In effect from
Oct 30, 2011, 2:00 PM EDT
Expired
Oct 30, 2011, 7:00 PM EDT
In force
5 hr
Issued by
NWS Tallahassee, FL

Counties Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Gadsden County, FL, Leon County, FL, Wakulla County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.8 hours before the alert went out and 104 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 2011-10-30Temperature 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, Tallahassee Rgnl, FL at 00:00Z on 2011-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -153 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2869 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-153 m²/s²
0-3 km storm-relative helicity
40 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.

644 
WWUS82 KTAE 300748
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
348 AM EDT SUN OCT 30 2011

...A RED FLAG WARNING IS NOW IN EFFECT FOR SOUTHEAST ALABAMA 
FROM 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING DUE TO LOW
RELATIVE HUMIDITIES CONCURRENT WITH SUSTAINED 20 FOOT WINDS
OF AT LEAST 10 MPH...

...A RED FLAG WARNING IS NOW IN EFFECT FOR LEON...GADSDEN...LIBERTY
AND INLAND WAKULLA COUNTIES IN THE FLORIDA BIG BEND FROM 2 PM
THIS AFTERNOON TO 7 PM EDT THIS EVENING DUE TO LOW RELATIVE
HUMIDITIES CONCURRENT WITH DISPERSIONS GREATER THAN 75. 

ALTHOUGH LOW LEVEL WINDS WILL VEER TO A NORTHEAST DIRECTION TODAY
AND BEGIN TO BRING INCREASING MOISTURE BACK INTO THE TRI- STATE
AREA...DRY CONDITIONS WILL PERSIST ONE MORE DAY. THE COMBINATION
OF LOW RELATIVE HUMIDITIES AND ENHANCED 20 FOOT WINDS HAS RESULTED
IN THE HOISTING OF A RED FLAG WARNING ACROSS SOUTHEAST ALABAMA.
THE COMBINATION OF LOW HUMIDITIES PLUS HIGH DISPERSIONS WILL ALSO
YIELD A RED FLAG WARNING ACROSS PORTIONS OF THE WESTERN BIG BEND.
INCREASING MOISTURE WILL PRECLUDE ANY HEADLINES ON MONDAY.

FLZ007>015-018-108-112-114-300900-
/O.CAN.KTAE.FW.A.0085.111030T1800Z-111030T2300Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-
CALHOUN-INLAND GULF-INLAND FRANKLIN-INLAND JEFFERSON-SOUTH WALTON-
COASTAL BAY-COASTAL GULF-
348 AM EDT SUN OCT 30 2011 /248 AM CDT SUN OCT 30 2011/

...THE FIRE WEATHER WATCH IS CANCELLED FOR PORTIONS OF NORTH
FLORIDA. 

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS CANCELLED THE
FIRE WEATHER WATCH. ALTHOUGH RELATIVE HUMIDITIES WILL REMAIN
LOW...NEITHER DISPERSIONS NOR SUSTAINED 20 FOOT WINDS WILL
REALIZE RED FLAG CRITERIA.

$$

ALZ065>069-302300-
/O.UPG.KTAE.FW.A.0085.111030T1800Z-111030T2300Z/
/O.NEW.KTAE.FW.W.0103.111030T1800Z-111030T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
248 AM CDT SUN OCT 30 2011

...A RED FLAG WARNING IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6
PM CDT THIS EVENING DUE TO LOW RELATIVE HUMIDITIES CONCURRENT
WITH SUSTAINED 20 FOOT WINDS OF AT LEAST 10 MPH...

* WIND...NORTH WIND AROUND 10 MPH WITH GUSTS UP TO 20 MPH. 

* HUMIDITY...MINIMUM VALUES 20 TO 25 PERCENT.

* KBDI...BETWEEN 600 TO 700.

* 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.

&&

$$

FLZ016-017-026-027-302300-
/O.UPG.KTAE.FW.A.0085.111030T1800Z-111030T2300Z/
/O.NEW.KTAE.FW.W.0103.111030T1800Z-111030T2300Z/
GADSDEN-LEON-LIBERTY-INLAND WAKULLA-
348 AM EDT SUN OCT 30 2011

...A RED FLAG WARNING IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 7
PM EDT THIS EVENING DUE TO LOW RELATIVE HUMIDITIES CONCURRENT
WITH DISPERSIONS GREATER THAN 75. 

* WIND...NORTH WIND AROUND 10 MPH WITH GUSTS UP TO 18 MPH. 

* HUMIDITY...MINIMUM VALUES 24 TO 31 PERCENT.

* DISPERSION...MAXIMUM VALUES BETWEEN 75 AND 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.

&&

$$

BLOCK

Nearby

Red Flag Warnings in Alabama, 2011Red 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.