Alert archive / Florida / Red Flag Warnings in 2012

Red Flag Warning 36, NWS Tallahassee, FL

May 27, 20125 counties in Florida

NWS Tallahassee, FL issued this red flag warning at May 27, 2012, 3:20 AM CDT for 5 counties in Florida. It took effect at May 27, 2012, 2:00 PM CDT. 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 27, 2012, 3:20 AM CDT (08:20 UTC)
In effect from
May 27, 2012, 2:00 PM CDT
Expired
May 27, 2012, 5:00 PM CDT
In force
3 hr
Issued by
NWS Tallahassee, FL

Counties Calhoun County, FL, Holmes County, FL, Jackson County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 31 km from the middle of the area, began a volume at 08:21 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, 8.3 hours before the alert went out and 129 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 2012-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2012-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
2581 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
86 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.

938 
WWUS82 KTAE 270820
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
420 AM EDT SUN MAY 27 2012

...A RED FLAG WARNING IS IN EFFECT FROM 2 PM TO 5 PM CDT THIS
AFTERNOON FOR PORTIONS OF THE INLAND PANHANDLE DUE TO A
COMBINATION OF SEVERAL HOURS OF LOW HUMIDITIES PLUS DISPERSIONS
WELL ABOVE 75 AND AN ERC WELL ABOVE 20...

.AS SUB-TROPICAL STORM BERYL BEGINS TO APPROACH THE FLORIDA EAST
COAST LATER TODAY...LOW LEVEL MOISTURE WILL INCREASE FROM EAST TO
WEST. HOWEVER INLAND PORTIONS OF THE PANHANDLE...FARTHEST FROM THIS
MOISTURE SOURCE...WILL STILL DROP BELOW 35 PERCENT RELATIVE
HUMIDITY FOR SEVERAL HOURS THIS AFTERNOON. THIS COMBINED WITH
DISPERSIONS WELL ABOVE 75 AND ERC VALUES GREATER THAN 20 WILL
NECESSITATE A RED FLAG WARNING. THE AIRMASS WILL SIGNIFICANTLY
MOISTEN TONIGHT AND CONTINUE THROUGH THE WORK WEEK. RED FLAG
CONCERNS ARE NOT EXPECTED THROUGH THIS TIME.

FLZ007>011-013-272100-
/O.NEW.KTAE.FW.W.0036.120527T1900Z-120527T2200Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-CALHOUN-
320 AM CDT SUN MAY 27 2012

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

* WIND...NORTHEAST NEAR 10 MPH. 

* HUMIDITY...31 TO 35 PERCENT.

* DISPERSIONS...90 TO 120.

* ERC...33 TO 36.

* 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 27, 1:17 PM CDTHurricane Local StatementTAEDixie, Jefferson, Lafayette, Leon, Madison, Taylor and 1 more21 hr
May 27, 2:38 PM CDTFlood WatchTAEDixie, Jefferson, Lafayette, Leon, Madison, Taylor and 1 more37 hr
May 27, 4:41 PM CDTTropical Storm WarningTAEDixie, Lafayette, Madison, Taylor18 hr

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.