Alert archive / Florida / Red Flag Warnings in 2012

Red Flag Warning 37, NWS Tallahassee, FL

May 30, 20124 counties in Florida

NWS Tallahassee, FL issued this red flag warning at May 30, 2012, 5:26 AM EDT for 4 counties in Florida. It took effect at May 30, 2012, 2:00 PM EDT. It was in force for 3 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
May 30, 2012, 5:26 AM EDT (09:26 UTC)
In effect from
May 30, 2012, 2:00 PM EDT
Expired
May 30, 2012, 5:00 PM EDT
In force
3 hr
Issued by
NWS Tallahassee, FL

Counties Gadsden County, FL, Holmes County, FL, Jackson County, FL, Walton County, FL

The radar

The Eglin Afb radar (KEVX), 48 km from the middle of the area, began a volume at 09:27 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 116 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 2012-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 919 joules per kilogram.LCLEL10008507005003002001001 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 2012-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
919 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1477 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
94 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.

789 
WWUS82 KTAE 300926
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
526 AM EDT WED MAY 30 2012

...A RED FLAG WARNING IS IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 5
PM EDT /4 PM CDT/ THIS AFTERNOON FOR PORTIONS OF INLAND FLORIDA
DUE TO A COMBINATION OF SEVERAL HOURS OF LOW HUMIDITY...
DISPERSIONS ABOVE 75 AND AN ERC OVER 20...

.UNLIKE MORE EASTERN AREAS...THE INLAND FLORIDA PANHANDLE DID NOT
BENEFIT FROM RECENT BERYL RELATED RAIN. AS SUCH...HUMIDITIES WILL
REMAIN JUST LOW ENOUGH THAT WHEN COMBINED WITH HIGH DISPERSIONS
INDUCED BY HIGH MIXING HEIGHTS AND PERSISTENT HIGH ERC VALUES...
WILL BRIEFLY GENERATE RED FLAG CONDITIONS THIS AFTERNOON. 

FLZ007-009-011-016-302100-
/O.NEW.KTAE.FW.W.0037.120530T1800Z-120530T2100Z/
INLAND WALTON-HOLMES-JACKSON-GADSDEN-
526 AM EDT WED MAY 30 2012 /426 AM CDT WED MAY 30 2012/

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 5 PM
EDT /4 PM CDT/ THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM EDT /1 PM CDT/ TO 5 PM EDT
/4 PM CDT/ THIS AFTERNOON. 

* ERC...30 TO 36. 

* HUMIDITY...32 TO 35 PERCENT. 

* DISPERSIONS...75 TO 90.

* 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.

&&

$$

BLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 11:44 PM EDTDense Smoke AdvisoryTAEWalton10 hr
May 30, 3:26 AM EDTSevere Thunderstorm WarningTAEHolmes, Walton49 min
May 30, 3:35 AM EDTSpecial Marine WarningTAE55 min
May 30, 4:27 AM EDTSpecial Marine WarningTAE2 hr
May 30, 5:42 AM EDTSpecial Marine WarningTAE63 min
May 30, 5:52 AM EDTSpecial Weather StatementTAELeon53 min
May 30, 4:36 PM EDTSpecial Weather StatementTAEWalton, Washington54 min
May 30, 4:54 PM EDTSpecial Weather StatementTAEBay66 min
May 30, 5:12 PM EDTSpecial Weather StatementTAEWakulla48 min
May 30, 5:29 PM EDTSevere Thunderstorm WarningTAEWalton30 min
May 30, 6:57 PM EDTSpecial Weather StatementTAEGadsden63 min
May 30, 7:01 PM EDTSevere Thunderstorm WarningTAEWalton29 min
May 30, 7:31 PM EDTSpecial Weather StatementTAEWalton59 min

Nearby

Red Flag Warnings in Florida, 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.