Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 21, NWS Tallahassee, FL

February 26, 20117 counties in Florida

NWS Tallahassee, FL issued this red flag warning at Feb 26, 2011, 3:25 AM CST for 7 counties in Florida. It took effect at Feb 26, 2011, 12:00 PM CST. 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
Feb 26, 2011, 3:25 AM CST (09:25 UTC)
In effect from
Feb 26, 2011, 12:00 PM CST
Expired
Feb 26, 2011, 5:00 PM CST
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, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 43 km from the middle of the area, began a volume at 09:31 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, 9.4 hours before the alert went out and 114 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 2011-02-26Temperature 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 2011-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939587897Sfc1 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
1862 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
70 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.

573 
WWUS82 KTAE 260925
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
425 AM EST SAT FEB 26 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM EST /NOON CST/ THIS
AFTERNOON TO 6 PM EST /5 PM CST/ THIS EVENING FOR MOST INTERIOR 
PORTIONS OF THE FLORIDA PANHANDLE AND A SMALL PORTION OF THE 
WESTERN BIG BEND DUE TO EXPECTED LONG DURATIONS OF LOW RELATIVE 
HUMIDITY...

.IT NOW APPEARS THAT INTERIOR PORTIONS OF THE FLORIDA PANHANDLE
AND A SMALL PORTION OF THE WESTERN BIG BEND WILL EXPERIENCE
CRITICAL DURATIONS OF LOW RELATIVE HUMIDITY THIS AFTERNOON AND A
RED FLAG WARNING HAS BEEN ISSUED. AFTER TODAY WE DON'T EXPECT FIRE
WEATHER CONCERNS UNTIL POSSIBLY TUESDAY WITH THE PASSAGE OF THE
NEXT COLD FRONT.

FLZ007-009>013-016-026-262030-
/O.NEW.KTAE.FW.W.0021.110226T1800Z-110226T2300Z/
INLAND WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-
GADSDEN-LIBERTY-
425 AM EST SAT FEB 26 2011 /325 AM CST SAT FEB 26 2011/

...RED FLAG WARNING IN EFFECT FROM 1 PM EST /NOON CST/ THIS
AFTERNOON TO 6 PM EST /5 PM CST/ THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM EST /NOON CST/ THIS
AFTERNOON TO 6 PM EST /5 PM CST/ THIS EVENING. 

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
1 follow-up statement
500 
WWUS82 KTAE 261952
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
252 PM EST SAT FEB 26 2011

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST /5 PM CST/
THIS EVENING FOR MOST INTERIOR PORTIONS OF THE FLORIDA PANHANDLE
AND A SMALL PORTION OF THE WESTERN BIG BEND DUE TO EXPECTED LONG
DURATIONS OF LOW RELATIVE HUMIDITY...

FLZ007-009>013-016-026-262300-
/O.CON.KTAE.FW.W.0021.000000T0000Z-110226T2300Z/
INLAND WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-
GADSDEN-LIBERTY-
252 PM EST SAT FEB 26 2011 /152 PM CST SAT FEB 26 2011/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST /5 PM CST/
THIS EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST /5 PM CST/
THIS EVENING. 

FOUR HOURS OF RELATIVE HUMIDITY VALUES BELOW 35 PERCENT ARE
EXPECTED THIS AFTERNOON.

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.

&&

$$

DVD

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.