Alert archive / Georgia / Red Flag Warnings in 2011

Red Flag Warning 27, NWS Tallahassee, FL

March 18, 201126 counties in Georgia; 5 counties in Alabama

NWS Tallahassee, FL issued this red flag warning at Mar 18, 2011, 4:01 AM EDT for 26 counties in Georgia; 5 counties in Alabama. It took effect at Mar 18, 2011, 1:00 PM EDT. It was in force for 113 min. 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 18, 2011, 4:01 AM EDT (08:01 UTC)
In effect from
Mar 18, 2011, 1:00 PM EDT
Expired
Mar 18, 2011, 2:53 PM EDT
In force
113 min
Issued by
NWS Tallahassee, FL
All 31 counties

Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Worth County, GA

The radar

The Tallahassee radar (KTLH), 105 km from the middle of the area, began a volume at 08:02 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, 8.0 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 2011-03-18Temperature 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 2011-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
2432 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
-10 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.

558 
WWUS82 KTAE 180801
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
401 AM EDT FRI MAR 18 2011

...A RED FLAG WARNING IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7
PM EDT THIS EVENING FOR SOUTHWEST AND SOUTH-CENTRAL GEORGIA DUE TO
EXPECTED LONG DURATIONS OF LOW RELATIVE HUMIDITY...

...A RED FLAG WARNING IS IN EFFECT FROM NOON TODAY TO 6 PM CDT
THIS EVENING FOR SOUTHEAST ALABAMA DUE TO EXPECT LONG DURATIONS OF
LOW RELATIVE HUMIDITY...

.HIGH PRESSURE AND WARM TEMPERATURES WILL PROVIDE ANOTHER VERY DRY 
DAY ACROSS MUCH OF THE AREA. EXPECTING AROUND 4 HOUR DURATIONS OF
RELATIVE HUMIDITY AT OR BELOW 25 PERCENT ACROSS OUR SOUTHEAST
ALABAMA AND SOUTHERN GEORGIA ZONES. WITH HIGH PRESSURE IN PLACE...
WINDS WILL REMAIN LIGHT THROUGH THE DAY.

ALZ065>069-GAZ120>131-142>148-155>161-182300-
/O.NEW.KTAE.FW.W.0027.110318T1700Z-110318T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-QUITMAN-CLAY-RANDOLPH-CALHOUN-
TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN-EARLY-
MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE-DECATUR-
GRADY-THOMAS-BROOKS-LOWNDES-LANIER-
401 AM EDT FRI MAR 18 2011 /301 AM CDT FRI MAR 18 2011/

...RED FLAG WARNING IN EFFECT FROM 1 PM EDT /NOON CDT/ THIS
AFTERNOON TO 7 PM EDT /6 PM CDT/ THIS EVENING...

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

EXPECTING AROUND 4 HOUR DURATIONS OF RELATIVE HUMIDITY AT OR
BELOW 25 PERCENT.

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.

&&

$$

14-MROCZKA
1 follow-up statement
175 
WWUS82 KTAE 181853
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
253 PM EDT FRI MAR 18 2011

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

ALZ065>069-GAZ120>131-142>148-155>161-182000-
/O.CAN.KTAE.FW.W.0027.000000T0000Z-110318T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-QUITMAN-CLAY-RANDOLPH-CALHOUN-
TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN-EARLY-
MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE-DECATUR-
GRADY-THOMAS-BROOKS-LOWNDES-LANIER-
253 PM EDT FRI MAR 18 2011 /153 PM CDT FRI MAR 18 2011/

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

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS CANCELLED THE RED
FLAG WARNING ACROSS SOUTHWEST GEORGIA AND SOUTHEAST ALABAMA. 

$$

Nearby

Red Flag Warnings in Georgia, 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.