Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 52, NWS Mobile, AL

May 11, 2008Walton County, Florida

NWS Mobile, AL issued this red flag warning at May 11, 2008, 1:53 PM CDT for Walton County, Florida. It took effect at May 13, 2008, 5:56 AM CDT. It was in force for 13 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 11, 2008, 1:53 PM CDT (18:53 UTC)
In effect from
May 13, 2008, 5:56 AM CDT
Expired
May 13, 2008, 7:00 PM CDT
In force
13 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 18:53 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, 6.9 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 2008-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2007 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 12:00Z on 2008-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 322 square meters per square second.1939587897Sfc1 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
2007 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
565 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
322 m²/s²
0-3 km storm-relative helicity
360 m²/s²
Significant tornado parameter
4.7
Supercell composite
15.9

Open this sounding in Storm Lab

The text

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

000 
WWUS84 KMOB 111853
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
153 PM CDT SUN MAY 11 2008

...RED FLAG WARNING IN EFFECT FOR THE WESTERN FLORIDA PANHANDLE DUE
TO A LONG DURATION OF LOW SURFACE HUMIDITY FROM 11 AM TO 6 PM CDT
MONDAY...

...RED FLAG WARNING IN EFFECT FOR THE INTERIOR OF THE WESTERN FLORIDA
PANHANDLE DUE TO A LONG DURATION OF LOW SURFACE HUMIDITY FROM FROM 12
PM TO 5 PM CDT TUESDAY... 

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
EVENING FOR THE COASTAL SECTIONS OF THE WEST FLORIDA PANHANDLE FOR A
SUSTAINED PERIOD OF LOW RELATIVE HUMIDITY...

.A MUCH DRIER AIR MASS HAS FOLLOWED A COLD FRONT ACROSS THE REGION.
SURFACE HUMIDITY IS EXPECTED TO BE LESS THAN 30 PERCENT FROM LATE
MORNING MONDAY THROUGH THE AFTERNOON AND AGAIN TUESDAY AFTERNOON. A
SEA BREEZE IS EXPECTED TO MODERATE THE DRY AIR NEAR THE COAST ON
TUESDAY AFTERNOON. 

FLZ001-003-005-121100-
/O.UPG.KMOB.FW.A.0044.080512T1500Z-080513T0000Z/
/O.NEW.KMOB.FW.W.0051.080512T1600Z-080512T2300Z/
/O.UPG.KMOB.FW.A.0045.080513T1600Z-080514T0000Z/
/O.NEW.KMOB.FW.W.0052.080513T1700Z-080513T2200Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
153 PM CDT SUN MAY 11 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CDT MONDAY...
...RED FLAG WARNING IN EFFECT FROM 12 PM TO 5 PM CDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 6 PM CDT MONDAY AND FROM
NOON UNTIL 5 PM CDT TUESDAY. THE FIRE WEATHER WATCH FOR THESE AREAS
HAS BEEN UPGRADED TO A RED FLAG WARNING. 

AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL LEVELS OVER
THE NORTHWEST FLORIDA PANHANDLE DURING THE LATE MORNING HOURS AND
THROUGH THE AFTERNOON ON MONDAY AND TUESDAY...RISING ABOVE CRITICAL
LEVELS AROUND SUNSET EACH DAY.

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

$$

FLZ002-004-006-008-121100-
/O.UPG.KMOB.FW.A.0044.080512T1500Z-080513T0000Z/
/O.NEW.KMOB.FW.W.0051.080512T1600Z-080512T2300Z/
/O.CON.KMOB.FW.A.0045.080513T1600Z-080514T0000Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
153 PM CDT SUN MAY 11 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CDT MONDAY...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 6 PM CDT MONDAY. THE
FIRE WEATHER WATCH FOR MONDAY HAS BEEN UPGRADED.  A FIRE WEATHER
WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING.

AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL LEVELS OVER
THE NORTHWEST FLORIDA PANHANDLE DURING THE LATE MORNING HOURS AND
THROUGH THE AFTERNOON ON MONDAY...RISING ABOVE CRITICAL LEVELS AROUND
SUNSET.

THERE IS A POSSIBILITY THAT SURFACE HUMIDITY WILL DROP BELOW 35
PERCENT FOR A SUSTAINED PERIOD ON TUESDAY AFTERNOON...ESPECIALLY THE
INTERIOR SECTIONS OF THE COASTAL ZONES. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. 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 FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$
4 follow-up statements
000 
WWUS84 KMOB 121132
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
632 AM CDT MON MAY 12 2008

...RED FLAG WARNING IN EFFECT FOR THE WESTERN FLORIDA PANHANDLE
DUE TO A LONG DURATION OF LOW SURFACE HUMIDITY FROM 11 AM TO 6 PM
CDT MONDAY...

...RED FLAG WARNING IN EFFECT FOR THE INTERIOR SECTIONS OF THE
WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW SURFACE
HUMIDITY FROM FROM 12 PM TO 5 PM CDT TUESDAY...

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING FOR THE COASTAL SECTIONS OF THE WEST FLORIDA
PANHANDLE FOR A SUSTAINED PERIOD OF LOW RELATIVE HUMIDITY...

.HIGH PRESSURE WILL GIVE WAY TO MUCH DRIER CONDITIONS OVER THE
CENTRAL GULF COAST REGION THROUGH TUESDAY. AFTERNOON RELATIVE
HUMIDITIES WILL HAVE TO BE CLOSELY MONITORED THROUGH TUESDAY. A
BETTER ONSHORE WIND FLOW WILL GIVE WAY TO HIGHER HUMIDITIES WEDNESDAY
THROUGH SATURDAY.

FLZ001-003-005-130345-
/O.CON.KMOB.FW.W.0051.080512T1600Z-080512T2300Z/
/O.CON.KMOB.FW.W.0052.080513T1700Z-080513T2200Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
632 AM CDT MON MAY 12 2008

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM CDT THIS AFTERNOON...
...RED FLAG WARNING REMAINS IN EFFECT FROM 12 PM TO 5 PM CDT
TUESDAY...

A 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 12 PM TO 5 PM CDT TUESDAY. 

AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL LEVELS
OVER THE WESTERN FLORIDA PANHANDLE TODAY AND INTERIOR SECTIONS
ON TUESDAY. AFTERNOON RELATIVE HUMIDITIES WILL HAVE TO BE CLOSELY
MONITORED OVER COASTAL SECTIONS OF THE WESTERN FLORIDA PANHANDLE 
ON TUESDAY. 

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

$$

FLZ002-004-006-008-130345-
/O.CON.KMOB.FW.W.0051.080512T1600Z-080512T2300Z/
/O.CON.KMOB.FW.A.0045.080513T1600Z-080514T0000Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
632 AM CDT MON MAY 12 2008

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM CDT THIS AFTERNOON...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING...

A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM CDT THIS AFTERNOON. A FIRE WEATHER WATCH REMAINS IN EFFECT
FROM TUESDAY MORNING THROUGH TUESDAY EVENING. 

AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL LEVELS
OVER THE WESTERN FLORIDA PANHANDLE TODAY AND INTERIOR SECTIONS
ON TUESDAY. AFTERNOON RELATIVE HUMIDITIES WILL HAVE TO BE CLOSELY
MONITORED OVER COASTAL SECTIONS OF THE WESTERN FLORIDA PANHANDLE 
ON TUESDAY. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW...OR WILL SHORTLY. 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 FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$
000 
WWUS84 KMOB 121910
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
210 PM CDT MON MAY 12 2008

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS AFTERNOON FOR LOW
HUMIDITY OVER THE WEST FLORIDA PANHANDLE...

...RED FLAG WARNING IN EFFECT FROM 12 PM TO 5 PM CDT TUESDAY FOR THE
INLAND SECTIONS OF THE WEST FLORIDA PANHANDLE DUE TO LOW HUMIDITY... 

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
EVENING FOR THE COASTAL SECTIONS OF THE WEST FLORIDA PANHANDLE DUE TO
EXPECTED LOW HUMIDITY...

.HIGH PRESSURE WILL DRIFT EAST ACROSS THE TENNESSEE
VALLEY THROUGH TUESDAY. WINDS WILL GRADUALLY BECOME SOUTHERLY TUESDAY
AFTERNOON...BRINGING INCREASING HUMIDITY TO THE AREA. VERY DRY
CONDITIONS THIS AFTERNOON OVER THE FLORIDA PANHANDLE AND AGAIN
TUESDAY AFTERNOON OVER THE INTERIOR SECTIONS OF THE PANHANDLE.

FLZ001-003-005-131100-
/O.CON.KMOB.FW.W.0051.000000T0000Z-080512T2300Z/
/O.CON.KMOB.FW.W.0052.080513T1700Z-080513T2200Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
210 PM CDT MON MAY 12 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON...
...RED FLAG WARNING REMAINS IN EFFECT FROM 12 PM TO 5 PM CDT
TUESDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON AND AGAIN FROM 12 PM TO 5 PM CDT TUESDAY.

AFTERNOON RELATIVE HUMIDITIES WILL REMAIN BELOW 35 PERCENT OVER THE
WESTERN FLORIDA PANHANDLE THIS AFTERNOON AND DROP BELOW 35 PERCENT
FOR A SUSTAINED PERIOD OVER THE INTERIOR SECTIONS ON TUESDAY AFTERNOON.

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

$$

FLZ002-004-006-008-131100-
/O.CON.KMOB.FW.W.0051.000000T0000Z-080512T2300Z/
/O.CON.KMOB.FW.A.0045.080513T1600Z-080514T0000Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
210 PM CDT MON MAY 12 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON. A FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY
MORNING THROUGH TUESDAY EVENING. 

AFTERNOON RELATIVE HUMIDITIES WILL REMAIN BELOW 35 PERCENT OVER THE
WESTERN FLORIDA PANHANDLE UNTIL LATE THIS AFTERNOON AND MAY DROP
BELOW 35 PERCENT OVER THE COASTAL SECTIONS FOR A SUSTAINED PERIOD ON
TUESDAY.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. 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 FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$
000 
WWUS84 KMOB 131056
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
556 AM CDT TUE MAY 13 2008

...A RED FLAG WARNING IS IN EFFECT UNTIL 6 PM CDT THIS AFTERNOON FOR
ALL ZONES IN THE WESTERN FLORIDA PANHANDLE DUE TO LONG DURATION OF
CRITICALLY LOW RELATIVE HUMIDITY...

.HIGH PRESSURE OVER THE CENTRAL GULF COAST REGION WILL CONTINUE TO
GIVE WAY TO VERY DRY CONDITIONS THROUGH THIS EVENING. HUMIDITIES
VALUES WILL REMAIN ABOVE CRITICAL VALUES ON WEDNESDAY AS A DEEPER
SOUTHERLY WIND FLOW DEVELOPS ACROSS THE REGION.

FLZ002-004-006-008-140000-
/O.UPG.KMOB.FW.A.0045.080513T1600Z-080514T0000Z/
/O.EXB.KMOB.FW.W.0052.080513T1600Z-080514T0000Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
556 AM CDT TUE MAY 13 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING FOR ALL ZONES IN THE WESTERN FLORIDA PANHANDLE...FROM 11 AM
THIS MORNING TO 7 PM CDT THIS EVENING.

AFTERNOON RELATIVE HUMIDITIES WILL FALL BELOW 35 PERCENT OVER THE
WESTERN FLORIDA PANHANDLE UNTIL LATE THIS AFTERNOON.

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.

$$

FLZ001-003-005-140000-
/O.EXT.KMOB.FW.W.0052.080513T1600Z-080514T0000Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
556 AM CDT TUE MAY 13 2008

...RED FLAG WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 7 PM
CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING FOR ALL ZONES IN THE WESTERN FLORIDA PANHANDLE...FROM 11 AM
THIS MORNING TO 7 PM CDT THIS EVENING.

AFTERNOON RELATIVE HUMIDITIES WILL FALL BELOW 35 PERCENT OVER THE
WESTERN FLORIDA PANHANDLE UNTIL LATE THIS AFTERNOON.

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. 

$$
000 
WWUS84 KMOB 131841
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
141 PM CDT TUE MAY 13 2008

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF
CRITICALLY LOW RELATIVE HUMIDITY...

.DRY CONDITIONS WILL CONTINUE THIS AFTERNOON AS HIGH PRESSURE MOVES
EAST OVER THE CENTRAL GULF COAST. WITH THE HIGH MORE TO THE
EAST BY WEDNESDAY...HUMIDITY VALUES WILL RECOVER TO ABOVE CRITICAL
LEVELS.

FLZ001>006-008-140000-
/O.CON.KMOB.FW.W.0052.000000T0000Z-080514T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
141 PM CDT TUE MAY 13 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING.

AFTERNOON RELATIVE HUMIDITIES RANGE FROM 28 TO 33 PERCENT OVER THE
WESTERN FLORIDA PANHANDLE UNTIL LATE THIS AFTERNOON.

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 6:20 AM CDTFire Weather WatchMOBWalton48 hr
May 11, 1:53 PM CDTRed Flag WarningMOBWalton28 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.