Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 97, NWS Tallahassee, FL

October 5, 20119 counties in Florida

NWS Tallahassee, FL issued this red flag warning at Oct 5, 2011, 8:39 PM CDT for 9 counties in Florida. It took effect at Oct 6, 2011, 1:00 PM CDT. 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 5, 2011, 8:39 PM CDT (01:39 UTC)
In effect from
Oct 6, 2011, 1:00 PM CDT
Expired
Oct 6, 2011, 6:00 PM CDT
In force
5 hr
Issued by
NWS Tallahassee, FL

Counties Bay County, FL, Calhoun County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Leon County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 68 km from the middle of the area, began a volume at 01:42 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, 1.7 hours before the alert went out and 89 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 2011-10-06Temperature 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 2011-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
2326 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-8 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.

608 
WWUS82 KTAE 060139
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
939 PM EDT WED OCT 5 2011

...A RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 6 PM CDT
THURSDAY FOR LOW RELATIVE HUMIDITY VALUES COUPLED WITH HIGH
DISPERSIONS FOR MUCH OF THE EASTERN PANHANDLE OF FLORIDA...

.DISCUSSION...ONE LAST RED FLAG DAY IS EXPECTED ACROSS THE
FLORIDA PANHANDLE. BY FRIDAY...RAIN CHANCES WILL SLOWLY INCREASE AS
THE EASTERLY FLOW BECOMES STRONGER. ELEVATED RAIN CHANCES ARE
EXPECTED BY THE LATTER PART OF THE WEEKEND AS A LOW PRESSURE
SYSTEM APPROACHES FROM THE SOUTHEASTERN PART OF THE STATE.

FLZ012>018-026-027-112-118-127-060245-
/O.CAN.KTAE.FW.A.0079.111006T1700Z-111006T2300Z/
INLAND BAY-CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-
INLAND JEFFERSON-LIBERTY-INLAND WAKULLA-COASTAL BAY-
COASTAL JEFFERSON-COASTAL WAKULLA-
939 PM EDT WED OCT 5 2011 /839 PM CDT WED OCT 5 2011/

...THE FIRE WEATHER WATCH IS CANCELLED FOR THURSDAY AFTERNOON FOR
BAY...CALHOUN...GULF...FRANKLIN...GADSDEN...LEON..JEFFERSON...AND 
WAKULLA COUNTIES...

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

RELATIVE HUMIDITY VALUES ARE NOT FORECAST TO FALL BELOW CRITICAL
LEVELS OR WILL NOT FALL BELOW FOR AN EXTENDED PERIOD OF TIME FOR
THE ABOVE MENTIONED COUNTIES.

$$

FLZ007>011-062300-
/O.UPG.KTAE.FW.A.0079.111006T1700Z-111006T2300Z/
/O.NEW.KTAE.FW.W.0097.111006T1800Z-111006T2300Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-
839 PM CDT WED OCT 5 2011

...A RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 6 PM CDT
THURSDAY FOR LOW RELATIVE HUMIDITY VALUES COUPLED WITH HIGH
DISPERSIONS FOR INLAND WALTON...HOLMES...WASHINGTON...AND JACKSON 
COUNTIES...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM TO 6 PM CDT THURSDAY.


 * WIND...EAST-NORTHEAST AROUND 10 MPH WITH OCCASIONAL HIGHER
   GUSTS UP TO 20 MPH.

 * HUMIDITY...AFTERNOON MINIMUM VALUES 32 TO 35 PERCENT.

 * ENERGY RELEASE COMPONENT...BETWEEN 27 AND 36.

 * DISPERSION...MAXIMUM VALUES AROUND 90.

 * 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.

&&

$$

HARRIGAN/BARRY
1 follow-up statement
985 
WWUS82 KTAE 060942
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
542 AM EDT THU OCT 6 2011

...A RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM EDT /1 PM CDT/ 
THIS AFTERNOON TO 7 PM EDT /6 PM CDT/ THIS EVENING FOR LOW
RELATIVE HUMIDITY VALUES COUPLED WITH HIGH DISPERSIONS FOR MUCH OF
THE EASTERN PANHANDLE OF FLORIDA...

.DISCUSSION...ONE LAST RED FLAG DAY IS EXPECTED ACROSS MUCH OF THE
EASTERN FLORIDA PANHANDLE. DISPERSIONS WILL ONCE AGAIN REMAIN HIGH
AND RELATIVE HUMIDITY VALUES WILL LIKELY FALL BELOW 35 PERCENT IN
MOST INLAND AREAS FROM LEON AND WAKULLA COUNTIES WESTWARD. ERC
VALUES WILL ALSO REMAIN HIGH PARTICULARLY IN BAY...WASHINGTON...
LEON...AND WAKULLA COUNTIES. FROM FRIDAY INTO THE WEEKEND...WINDS
WILL GRADUALLY INCREASE. HOWEVER...INCREASING MOISTURE LEVELS
SHOULD PREVENT CRITICAL FIRE WEATHER CONDITIONS ANY LATER THAN
THIS AFTERNOON.

FLZ012-013-016-017-026-027-062030-
/O.EXA.KTAE.FW.W.0097.111006T1800Z-111006T2300Z/
INLAND BAY-CALHOUN-GADSDEN-LEON-LIBERTY-INLAND WAKULLA-
542 AM EDT THU OCT 6 2011 /442 AM CDT THU OCT 6 2011/

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 7 PM EDT /6 PM CDT/ THIS EVENING DUE TO LOW RELATIVE
HUMIDITY AND HIGH DISPERSIONS FOR INLAND BAY...CALHOUN...GADSDEN...
LEON...LIBERTY...AND INLAND WAKULLA COUNTIES...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 7 PM EDT /6 PM CDT/ THIS EVENING. 

 * WIND...EAST-NORTHEAST 8 TO 12 MPH. GUSTS TO 18 MPH.

 * HUMIDITY...AFTERNOON MINIMUM VALUES 30 TO 35 PERCENT.

 * ENERGY RELEASE COMPONENT...BETWEEN 32 AND 36.

 * DISPERSION...MAXIMUM VALUES 80 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.

&&

$$

FLZ007>011-062030-
/O.CON.KTAE.FW.W.0097.111006T1800Z-111006T2300Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-
442 AM CDT THU OCT 6 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
6 PM CDT THIS EVENING DUE TO LOW RELATIVE HUMIDITY AND HIGH
DISPERSION FOR INLAND AND CENTRAL WALTON...HOLMES...WASHINGTON...
AND JACKSON COUNTIES...

 * WIND...EAST-NORTHEAST 8 TO 11 MPH. GUSTS TO 17 MPH.

 * HUMIDITY...AFTERNOON MINIMUM VALUES 31 TO 35 PERCENT.

 * ENERGY RELEASE COMPONENT...BETWEEN 27 AND 36.

 * DISPERSION...MAXIMUM VALUES 80 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.

&&

$$

LAMERS

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 2:48 PM CDTSmall Craft AdvisoryTAE4 days

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.