Alert archive / Alabama / Red Flag Warnings in 2013

Red Flag Warning 13, NWS Tallahassee, FL

March 20, 20135 counties in Alabama

NWS Tallahassee, FL issued this red flag warning at Mar 20, 2013, 1:51 PM CDT for 5 counties in Alabama. It took effect at Mar 21, 2013, 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
Mar 20, 2013, 1:51 PM CDT (18:51 UTC)
In effect from
Mar 21, 2013, 1:00 PM CDT
Expired
Mar 21, 2013, 6:00 PM CDT
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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 161 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 2013-03-20Temperature 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 12:00Z on 2013-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 square meters per square second.1939587897117Sfc1 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
2797 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
263 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.

018 
WWUS82 KTAE 201851
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
251 PM EDT WED MAR 20 2013

...A RED FLAG WARNING IS NOW IN EFFECT FROM LATE THURSDAY
MORNING THROUGH THURSDAY EVENING FOR ALL OF SOUTHEAST ALABAMA
DUE TO LONG DURATIONS OF RELATIVE HUMIDITY BELOW 25 PERCENT...

.THERE IS A HIGH DEGREE OF CONFIDENCE THAT LONG DURATIONS OF
RELATIVE HUMIDITY BELOW 25 PERCENT WILL OCCUR ACROSS SOUTHEAST
ALABAMA. THEREFORE...THE FIRE WEATHER WATCH HAS BEEN UPGRADED TO A
RED FLAG WARNING. WHILE IT WILL BE JUST AS DRY ACROSS OUR GEORGIA
AND FLORIDA ZONES...WIND AND FUEL MOISTURE CRITERIA REQUIRED FOR A
WARNING WILL NOT BE MET IN THOSE STATES.

ALZ065>069-211130-
/O.UPG.KTAE.FW.A.0009.130321T1700Z-130322T0000Z/
/O.NEW.KTAE.FW.W.0013.130321T1600Z-130322T0000Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
151 PM CDT WED MAR 20 2013

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM CDT THURSDAY FOR
LONG DURATIONS OF RELATIVE HUMIDITY BELOW 25 PERCENT...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 7 PM CDT THURSDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* HUMIDITY...MINIMUM 16 TO 21 PERCENT.

* DURATION...6 TO 8 HOURS BELOW 25 PERCENT.

* 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.

&&

$$

18-WOOL
2 follow-up statements
081 
WWUS82 KTAE 210918
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
518 AM EDT THU MAR 21 2013

...THE RED FLAG WARNING IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON 
TO 6 PM CDT THIS EVENING ACROSS ALL OF SOUTHEAST ALABAMA DUE TO LONG 
DURATIONS OF RELATIVE HUMIDITY BELOW 25 PERCENT...

.LONG DURATIONS OF AFTERNOON RELATIVE HUMIDITIES BELOW 25 PERCENT
ARE STILL EXPECTED ACROSS SOUTHEAST ALABAMA TODAY...SO THE CURRENT
RED FLAG WARNING WILL REMAIN IN EFFECT. ALTHOUGH RELATIVE
HUMIDITIES WILL ALSO BE QUITE LOW ACROSS OUR GEORGIA AND FLORIDA
ZONES THIS AFTERNOON...THE OTHER REQUIRED PARAMETERS WILL NOT BE
IN PLACE TO REQUIRE ANY WARNINGS OR WATCHES.

ALZ065>069-212300-
/O.EXT.KTAE.FW.W.0013.130321T1800Z-130321T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
418 AM CDT THU MAR 21 2013

...A RED FLAG WARNING IS NOW IN EFFECT FROM 1 PM THIS AFTERNOON
TO 6 PM CDT THIS EVENING FOR LONG DURATIONS OF RELATIVE HUMIDITY
BELOW 25 PERCENT...

* HUMIDITY...MINIMUM 20 TO 21 PERCENT.

* DURATION...4 TO 5 HOURS BELOW 25 PERCENT.

* 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.

&&

$$

17-GOULD
720 
WWUS82 KTAE 211932
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
332 PM EDT THU MAR 21 2013

...RED FLAG WARNING CONTINUES IN EFFECT UNTIL 6 PM CDT THIS EVENING 
ACROSS ALL OF SOUTHEAST ALABAMA DUE TO LONG DURATIONS OF RELATIVE 
HUMIDITY BELOW 25 PERCENT...

...A SMALL AREA OF DISPERSIONS GREATER THAN 75 IS EXPECTED ALONG THE 
SUWANNEE RIVER VALLEY THIS AFTERNOON...

.DISCUSSION...RED FLAG CONDITIONS ARE ONGOING ACROSS THE SOUTHEAST 
CORNER OF ALABAMA THIS AFTERNOON. AFTER TODAY...THERE WON'T BE ANY 
FIRE WEATHER CONCERNS AT LEAST THROUGH THE WEEKEND. 

ALZ065>069-212300-
/O.CON.KTAE.FW.W.0013.000000T0000Z-130321T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
232 PM CDT THU MAR 21 2013

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING
FOR LONG DURATIONS OF RELATIVE HUMIDITY BELOW 25 PERCENT...

* HUMIDITY...MINIMUM 20 TO 21 PERCENT.

* DURATION...4 TO 5 HOURS BELOW 25 PERCENT.

* 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.

&&

$$

BARRY

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 20, 3:38 AM CDTFire Weather WatchTAECoffee, Dale, Geneva, Henry, Houston10 hr

Nearby

Red Flag Warnings in Alabama, 2013Every red flag warning in 2013

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.