Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 1, NWS Tallahassee, FL

January 2, 201116 counties in Florida; 5 counties in Alabama

NWS Tallahassee, FL issued this red flag warning at Jan 2, 2011, 1:23 PM CST for 16 counties in Florida; 5 counties in Alabama. It took effect at Jan 3, 2011, 11:00 AM 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
Jan 2, 2011, 1:23 PM CST (19:23 UTC)
In effect from
Jan 3, 2011, 11:00 AM CST
Expired
Jan 3, 2011, 4:00 PM CST
In force
5 hr
Issued by
NWS Tallahassee, FL
All 21 counties

Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The radar

The Tallahassee radar (KTLH), 55 km from the middle of the area, began a volume at 19:23 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 12:00Z, 7.4 hours before the alert went out and 57 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 2011-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 joules per kilogram.LCLLFCEL10008507005003002001001 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 2011-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.19395878Sfc1 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
14 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
484 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
234 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.

998 
WWUS82 KTAE 021923
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
223 PM EST SUN JAN 2 2011

...RED FLAG WARNING IN EFFECT FOR SOUTHEAST ALABAMA AND THE
FLORIDA PANHANDLE AND BIG BEND FOR MONDAY AFTERNOON FOR LOW
RELATIVE HUMIDITY...

.DAYTIME HEATING...THOUGH LIMITED...WILL COMBINE WITH A DRY
AIRMASS TO PRODUCE LOW RELATIVE HUMIDITY MONDAY AFTERNOON. 

FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-031230-
/O.UPG.KTAE.FW.A.0001.110103T1700Z-110103T2300Z/
/O.NEW.KTAE.FW.W.0001.110103T1700Z-110103T2200Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-
CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-
MADISON-LIBERTY-INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-
INLAND DIXIE-SOUTH WALTON-COASTAL BAY-COASTAL GULF-
COASTAL FRANKLIN-COASTAL JEFFERSON-COASTAL WAKULLA-COASTAL TAYLOR-
COASTAL DIXIE-
223 PM EST SUN JAN 2 2011 /123 PM CST SUN JAN 2 2011/

...RED FLAG WARNING IN EFFECT FROM NOON EST /11 AM CST/ TO 5 PM
EST /4 PM CST/ MONDAY...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON EST /11 AM CST/ TO 5 PM
EST /4 PM CST/ MONDAY. 

THE RELATIVE HUMIDITY WILL FALL BELOW 35 PERCENT EARLY MONDAY
AFTERNOON...AND REMAIN BELOW 35 PERCENT FOR 4 TO TO 5 HOURS. 

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.

&&

$$

ALZ065>069-031230-
/O.NEW.KTAE.FW.W.0001.110103T1700Z-110103T2200Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
123 PM CST SUN JAN 2 2011

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 4 PM CST MONDAY...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 4 PM CST MONDAY. 

THE RELATIVE HUMIDITY WILL FALL BELOW 25 PERCENT EARLY MONDAY
AFTERNOON...AND REMAIN BELOW 25 PERCENT FOR ABOUT 4 HOURS.

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.

&&

$$

FOURNIER
1 follow-up statement
898 
WWUS82 KTAE 030801
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
301 AM EST MON JAN 3 2011

...A RED FLAG WARNING REMAINS IN EFFECT FROM NOON EST /11 AM CST/ 
TODAY TO 5 PM EST /4 PM CST/ THIS AFTERNOON FOR ALL OF THE FLORIDA 
BIG BEND AND PANHANDLE DUE TO EXPECTED LONG DURATIONS OF RELATIVE 
HUMIDITY BELOW 35 PERCENT...AND FOR EXTREME SOUTHEAST ALABAMA DUE 
TO LIKELY LONG DURATIONS OF RELATIVE HUMIDITY BELOW 25 PERCENT...

.WITH THE RIDGE OF HIGH PRESSURE BUILDING IN TO OUR 
NORTH...THE COOLER AND MUCH DRIER AIR WILL CREATE LIKELY RED FLAG 
CONDITIONS FOR ALL OF THE FLORIDA BIG BEND AND PANHANDLE THIS 
AFTERNOON...AND POSSIBLE RED FLAG CONDITIONS OVER SOUTHEAST ALABAMA. 
DESPITE THE BORDERLINE WARNING CRITERIA OVER SOUTHEAST ALABAMA... 
WILL LEAVE THE CURRENT RED FLAG WARNING IN PLACE...AS IT COULD 
EASILY BE JUST A BIT DRIER THAN CURRENTLY FORECAST...WHICH WOULD 
THEN ALLOW FOR 4 TO 5 HOURS OF SUB 25 PERCENT RELATIVE HUMIDITY. 
NO FIRE WEATHER CONCERNS ARE EXPECTED FOR TUESDAY...ALTHOUGH PARTS 
OF THE NORTHWESTERN FLORIDA PANHANDLE COULD BRIEFLY DROP BELOW 35 
PERCENT.


ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-
032200-
/O.CON.KTAE.FW.W.0001.110103T1700Z-110103T2200Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON-
HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF-
INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY-
INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON-
COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON-
COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-
301 AM EST MON JAN 3 2011 /201 AM CST MON JAN 3 2011/

...A RED FLAG WARNING REMAINS IN EFFECT FROM NOON EST /11 AM CST/
TODAY TO 5 PM EST /4 PM CST/ 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.

&&

$$

17-GOULD

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 11:44 PM CSTSpecial Marine WarningTAE61 min
Jan 2, 12:41 AM CSTSpecial Marine WarningTAE2 hr
Jan 2, 3:33 AM CSTFire Weather WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more10 hr

Nearby

Red Flag Warnings in Florida, 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.