Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 53, NWS Mobile, AL

June 18, 2008Walton County, Florida

NWS Mobile, AL issued this red flag warning at Jun 18, 2008, 4:03 AM CDT for Walton County, Florida. It took effect at Jun 18, 2008, 12:00 PM CDT. It was in force for 2 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
Jun 18, 2008, 4:03 AM CDT (09:03 UTC)
In effect from
Jun 18, 2008, 12:00 PM CDT
Expired
Jun 18, 2008, 2:26 PM CDT
In force
2 hr
Issued by
NWS Mobile, AL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 09:05 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, 9.1 hours before the alert went out and 181 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 2008-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1325 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 2008-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
1325 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1396 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
WWUS84 KMOB 180903
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
403 AM CDT WED JUN 18 2008

...A RED FLAG WARNING IS IN EFFECT FOR THE WESTERN FLORIDA 
PANHANDLE DUE TO AFTERNOON RELATIVE HUMIDITIES FALLING TO OR BELOW 
CRITICAL LEVELS FOR MORE THAN 4 HOURS...

.DRIER AIR HAS MOVE SOUTH ACROSS THE CENTRAL GULF COAST REGION IN
THE WAKE OF A WEAK COLD FRONT WHICH MOVED ACROSS THE REGION LATE
TUESDAY NIGHT. AS A RESULT AFTERNOON RELATIVE HUMIDITIES WILL FALL TO
THE 35 PERCENT RANGE OR LESS FOR MORE THAN 4 HOURS FOR MOST INTERIOR
AREAS OF SOUTHWEST ALABAMA...SOUTHEAST MISSISSIPPI AND THE WESTERN
FLORIDA PANHANDLE. AFTERNOON RELATIVE HUMIDITIES WILL HAVE TO CLOSELY
MONITORED THROUGH FRIDAY.

FLZ001>006-008-190000-
/O.NEW.KMOB.FW.W.0053.080618T1700Z-080619T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
403 AM CDT WED JUN 18 2008

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING DUE TO CRITICALLY LOW AFTERNOON AFTERNOON RELATIVE 
HUMIDITIES.  

DRIER AIR HAS MOVE SOUTH ACROSS THE CENTRAL GULF COAST REGION IN THE
WAKE OF A WEAK COLD FRONT WHICH MOVED ACROSS THE REGION LATE TUESDAY
NIGHT. AS A RESULT AFTERNOON RELATIVE HUMIDITIES WILL FALL TO THE 35
PERCENT RANGE OR LESS FOR MORE THAN 4 HOURS FOR MOST INTERIOR AREAS
OF THE WESTERN FLORIDA PANHANDLE. AFTERNOON RELATIVE HUMIDITIES WILL
HAVE TO CLOSELY MONITORED THROUGH FRIDAY.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$
1 follow-up statement
000 
WWUS84 KMOB 181926
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
226 PM CDT WED JUN 18 2008

...RED FLAG WARNING IS CANCELLED FOR THIS AFTERNOON...

...FIRE WEATHER WATCH IN EFFECT THURSDAY AFTERNOON FOR INLAND
SECTIONS OF THE WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL OF A
LONG DURATION OF LOW RELATIVE HUMIDITY BELOW 35 PERCENT...

.A DRY AIRMASS WILL CONTINUE ACROSS THE REGION THROUGH THURSDAY. THE
DRIEST CONDITIONS WILL BE FOUND ACROSS INLAND AREAS WHERE THE COASTAL
SEA BREEZE WILL NOT REACH.

FLZ001-003-005-191130-
/O.CAN.KMOB.FW.W.0053.000000T0000Z-080619T0000Z/
/O.NEW.KMOB.FW.A.0047.080619T1700Z-080619T2200Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
226 PM CDT WED JUN 18 2008

...FIRE WEATHER WATCH IN EFFECT THURSDAY AFTERNOON...
...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT THURSDAY AFTERNOON. THE RED FLAG
WARNING THAT WAS IN EFFECT FOR THIS AFTERNOON HAS BEEN CANCELLED. 

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG
WARNINGS.

$$

FLZ002-004-006-008-182030-
/O.CAN.KMOB.FW.W.0053.000000T0000Z-080619T0000Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
226 PM CDT WED JUN 18 2008

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELLED THE RED FLAG
WARNING. 


$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 2:26 PM CDTFire Weather WatchMOB15 hr

Nearby

Red Flag Warnings in Florida, 2008Every red flag warning in 2008

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.