Alert archive / Florida / Red Flag Warnings in 2012

Red Flag Warning 59, NWS Tallahassee, FL

December 21, 201216 counties in Florida; 5 counties in Alabama

NWS Tallahassee, FL issued this red flag warning at Dec 21, 2012, 3:24 AM CST for 16 counties in Florida; 5 counties in Alabama. It took effect at Dec 21, 2012, 10:00 AM CST. It was in force for 8 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
Dec 21, 2012, 3:24 AM CST (09:24 UTC)
In effect from
Dec 21, 2012, 10:00 AM CST
Expired
Dec 21, 2012, 6:00 PM CST
In force
8 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 09:23 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 00:00Z, 9.4 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 00:00Z on 2012-12-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 90 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 00:00Z on 2012-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
90 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

400 
WWUS82 KTAE 210924
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
424 AM EST FRI DEC 21 2012

...A RED FLAG WARNING IS IN EFFECT TODAY FOR SOUTHEAST ALABAMA AND
THE FLORIDA PANHANDLE AND BIG BEND...

.DRY AIR ARRIVING IN THE WAKE OF A COLD FRONT WILL PRODUCE LONG
DURATIONS OF LOW RELATIVE HUMIDITY TODAY ACROSS THE ENTIRE AREA.
THE COMBINATION OF LOW HUMIDITY WITH GUSTY NORTHWEST WINDS...AND
HIGH DISPERSIONS...MAY PRODUCE RED FLAG CONDITIONS ACROSS
SOUTHEAST ALABAMA AND THE FLORIDA PANHANDLE AND BIG BEND.

FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-220000-
/O.UPG.KTAE.FW.A.0045.121221T1600Z-121222T0000Z/
/O.NEW.KTAE.FW.W.0059.121221T1600Z-121222T0000Z/
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-
424 AM EST FRI DEC 21 2012 /324 AM CST FRI DEC 21 2012/

...RED FLAG WARNING IN EFFECT FROM 11 AM EST /10 AM CST/ THIS
MORNING TO 7 PM EST /6 PM CST/ THIS EVENING FOR THE FLORIDA
PANHANDLE AND BIG BEND...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM EST /10 AM CST/ THIS
MORNING TO 7 PM EST /6 PM CST/ THIS EVENING. 

* HUMIDITY: MINIMUM VALUES 18 TO 24 PERCENT...EXCEPT 25 TO 30 
  PERCENT ALONG THE IMMEDIATE COASTLINE. 

* WIND: NORTHWEST AROUND 15 MPH WITH HIGHER GUSTS.

* DISPERSION: MAXIMUM VALUES 75 TO 95.

* 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.

&&

$$

ALZ065>069-212300-
/O.UPG.KTAE.FW.A.0045.121221T1800Z-121221T2300Z/
/O.NEW.KTAE.FW.W.0059.121221T1800Z-121221T2300Z/
COFFEE-DALE-HENRY-GENEVA-HOUSTON-
324 AM CST FRI DEC 21 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 5 PM CST THIS
AFTERNOON FOR SOUTHEAST ALABAMA...

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

* HUMIDITY: MINIMUM VALUES AROUND 20 PERCENT.

* WIND: NORTHWEST 15 TO 20 MPH WITH HIGHER GUSTS.

* 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.

&&

$$

08-LAMERS

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 21, 2:56 AM CSTFreeze WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more23 hr
Dec 21, 2:56 AM CSTFreeze WarningTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more29 hr
Dec 21, 3:35 AM CSTSmall Craft AdvisoryTAE26 hr

Nearby

Red Flag Warnings in Florida, 2012Red Flag Warnings in Alabama, 2012Every red flag warning in 2012

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.