Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 59, NWS Mobile, AL

September 25, 2008Walton County, Florida

NWS Mobile, AL issued this red flag warning at Sep 25, 2008, 2:38 PM CDT for Walton County, Florida. It took effect at Sep 26, 2008, 12:00 PM 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 25, 2008, 2:38 PM CDT (19:38 UTC)
In effect from
Sep 26, 2008, 12:00 PM CDT
Expired
Sep 26, 2008, 7:00 PM CDT
In force
7 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 19:44 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 12:00Z, 7.6 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 2008-09-25Temperature 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 2008-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -107 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
1513 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-107 m²/s²
0-3 km storm-relative helicity
-113 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 251938
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
238 PM CDT THU SEP 25 2008

...A RED FLAG WARNING REMAINS IN EFFECT FROM 12 PM TO 7 PM CDT
TODAY FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION
LOW AFTERNOON RELATIVE HUMIDITY VALUES OF LESS THAN 35 PERCENT...

...THE FIRE WEATHER WATCH FOR THE WESTERN FLORIDA PANHANDLE ON FRIDAY
HAS BEEN UPGRADED TO A RED FLAG WARNING...VALID FROM 12 PM TO 7 PM
CDT DUE TO CRITICALLY LOW AFTERNOON RELATIVE HUMIDITY VALUES...

.A DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE REGION THROUGH THE
EARLY PART OF THE WEEKEND...WITH MINIMAL RELATIVE HUMIDITY VALUES
RANGING FROM THE MID 20S TO LOWER 30S ON FRIDAY...THEN IN THE 30 TO
35 PERCENT RANGE ON SATURDAY. AFTERNOON RELATIVE HUMIDITIES ARE
EXPECTED TO RISE ABOVE CRITICAL LEVELS BY SUNDAY AND MONDAY.

FLZ001>006-008-261145-
/O.UPG.KMOB.FW.A.0053.080926T1700Z-080927T0000Z/
/O.NEW.KMOB.FW.W.0059.080926T1700Z-080927T0000Z/
/O.CON.KMOB.FW.W.0058.000000T0000Z-080926T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
238 PM CDT THU SEP 25 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 12 PM TO 7 PM CDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 12 PM TO 7 PM CDT FRIDAY. 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 THE
EARLY PART OF THE WEEKEND...WITH MINIMAL RELATIVE HUMIDITY VALUES
RANGING FROM THE MID 20S TO LOWER 30S ON FRIDAY.

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 261114
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
614 AM CDT FRI SEP 26 2008

...A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CDT
THIS EVENING...AND A FIRE WEATHER WATCH IS IN EFFECT FROM 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 DROPPING BELOW
CRITICAL LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE TODAY AND AGAIN
ON SATURDAY. MOISTURE LEVELS WILL INCREASE SOMEWHAT ON SUNDAY WHICH
WILL KEEP AFTERNOON RELATIVE HUMIDITIES ABOVE CRITICAL LEVELS.

FLZ001>006-008-270315-
/O.NEW.KMOB.FW.A.0054.080927T1600Z-080927T2300Z/
/O.CON.KMOB.FW.W.0059.080926T1700Z-080927T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
614 AM CDT FRI SEP 26 2008

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CDT
THIS EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY
AFTERNOON. A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY
TO 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.

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.

$$
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.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 3:51 AM CDTFire Weather WatchMOBWalton11 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.