Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 60, NWS Mobile, AL

September 26, 2008Walton County, Florida

NWS Mobile, AL issued this red flag warning at Sep 26, 2008, 1:20 PM CDT for Walton County, Florida. It took effect at Sep 27, 2008, 11:00 AM CDT. It was in force for 7 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
Sep 26, 2008, 1:20 PM CDT (18:20 UTC)
In effect from
Sep 27, 2008, 11:00 AM CDT
Expired
Sep 27, 2008, 6:00 PM CDT
In force
7 hr
Issued by
NWS Mobile, AL

County Walton County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.3 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 12:00Z on 2008-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2008-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
1527 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
31 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.

000 
WWUS84 KMOB 261820
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
120 PM CDT FRI SEP 26 2008

...A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM
CDT THIS EVENING...AND A RED FLAG WARNING IS NOW IN EFFECT FROM
LATE SATURDAY MORNING THROUGH SATURDAY AFTERNOON FOR THE NORTHWEST
FLORIDA PANHANDLE DUE TO LOW AFTERNOON RELATIVE HUMIDITY...

.A DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION THROUGH
SATURDAY RESULTING IN AFTERNOON RELATIVE HUMIDITIES HAVING DROPPED BELOW
CRITICAL LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE TODAY AND LIKELY
TO DROP AGAIN ON SATURDAY. MOISTURE LEVELS WILL INCREASE SOMEWHAT ON
SUNDAY WHICH WILL KEEP AFTERNOON RELATIVE HUMIDITIES ABOVE CRITICAL
LEVELS.

FLZ001>006-008-271130-
/O.UPG.KMOB.FW.A.0054.080927T1600Z-080927T2300Z/
/O.NEW.KMOB.FW.W.0060.080927T1600Z-080927T2300Z/
/O.CON.KMOB.FW.W.0059.000000T0000Z-080927T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
120 PM CDT FRI SEP 26 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 6 PM CDT SATURDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. A RED FLAG WARNING
REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

A DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION THROUGH
SATURDAY...WITH RELATIVE HUMIDITY VALUES DROPPING TO AROUND 30 BOTH
THIS AFTERNOON AND SATURDAY AFTERNOON.

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

$$
2 follow-up statements
000 
WWUS84 KMOB 271118
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
618 AM CDT SAT SEP 27 2008

...A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM CDT
TODAY FOR THE NORTHWEST FLORIDA PANHANDLE...

.A DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION TODAY RESULTING
IN AFTERNOON RELATIVE HUMIDITIES DROPPING BELOW CRITICAL LEVELS OVER
THE NORTHWEST FLORIDA PANHANDLE. MOISTURE LEVELS WILL INCREASE
GRADUALLY SUNDAY THROUGH TUESDAY WHICH WILL KEEP AFTERNOON RELATIVE
HUMIDITIES ABOVE CRITICAL LEVELS.

FLZ001>006-008-272300-
/O.CON.KMOB.FW.W.0060.080927T1600Z-080927T2300Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
618 AM CDT SAT SEP 27 2008

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM CDT THIS AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM CDT THIS AFTERNOON. 

A DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION TODAY WITH
RELATIVE HUMIDITY VALUES DROPPING TO AROUND 30 THIS AFTERNOON.

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

$$
000 
WWUS84 KMOB 271855
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
155 PM CDT SAT SEP 27 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS AFTERNOON
FOR THE WEST FLORIDA PANHANDLE DUE TO A SUSTAINED PERIOD OF LOW
RELATIVE HUMIDITY...

...A FIRE WEATHER WATCH FOR A SUSTAINED PERIOD OF LOW SURFACE
HUMIDITY WILL BE IN EFFECT SUNDAY AFTERNOON FOR THE INLAND SECTIONS
OF OKALOOSA AND SANTA ROSA COUNTIES... 

.SURFACE HUMIDITY WILL RISE ABOVE 35 PERCENT LATER THIS AFTERNOONOVER
THE WARNING AREA. THE DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE
REGION SUNDAY RESULTING IN AFTERNOON RELATIVE HUMIDITIES DROPPING
BELOW CRITICAL LEVELS OVER THE INTERIOR SECTIONS OF THE FLORIDA
PANHANDLE. MOISTURE LEVELS WILL INCREASE GRADUALLY ALONG THE COAST SUNDAY
AS SURFACE WINDS BECOME SOUTHERLY IN THE AFTERNOON. 

FLZ003-005-281100-
/O.NEW.KMOB.FW.A.0055.080928T1700Z-080928T2200Z/
/O.CON.KMOB.FW.W.0060.000000T0000Z-080927T2300Z/
INLAND SANTA ROSA-INLAND OKALOOSA-
155 PM CDT SAT SEP 27 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON FOR LOW RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON FOR THE POSSIBILITY
OF A SUSTAINED PERIOD OF LOW RELATIVE HUMIDITY...


A DRY AIRMASS REMAINS IN PLACE ACROSS THE REGION THIS AFTERNOON WITH
RELATIVE HUMIDITY VALUES GENERALLY BETWEEN 25 AND 35 PERCENT. 

SIMILAR CONDITIONS ARE POSSIBLE SUNDAY AFTERNOON.

A RED FLAG WARNING MEANS THAT DANGEROUS FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR LIKELY WILL OCCUR. A COMBINATION OF
LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE RAPID FIRE
GROWTH POTENTIAL.

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

$$

FLZ001-002-004-006-008-272300-
/O.CON.KMOB.FW.W.0060.000000T0000Z-080927T2300Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-COASTAL SANTA ROSA-
COASTAL OKALOOSA-COASTAL WALTON-
155 PM CDT SAT SEP 27 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON...

A DRY AIRMASS REMAINS IN PLACE ACROSS THE REGION THIS AFTERNOON WITH
RELATIVE HUMIDITY VALUES GENERALLY BETWEEN 25 AND 35 PERCENT. 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 6:14 AM CDTFire Weather WatchMOBWalton7 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.