Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 82, NWS Mobile, AL

December 15, 2007Walton County, Florida

NWS Mobile, AL issued this red flag warning at Dec 15, 2007, 3:12 PM CST for Walton County, Florida. It took effect at Dec 16, 2007, 11:00 AM CST. It was in force for 4 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
Dec 15, 2007, 3:12 PM CST (21:12 UTC)
In effect from
Dec 16, 2007, 11:00 AM CST
Expired
Dec 16, 2007, 2:48 PM CST
In force
4 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 21:15 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, 9.2 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 2007-12-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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 2007-12-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.19395878Sfc1 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
39 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
636 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WWUS84 KMOB 152112
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
312 PM CST SAT DEC 15 2007

...A FIRE WEATHER WATCH IS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE AND SOUTH
CENTRAL ALABAMA...

...A RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 5 PM CST SUNDAY
FOR THE NORTHWEST FLORIDA PANHANDLE...

.A STRONG COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT WITH
BREEZY NORTHWEST WINDS USHERING MUCH COOLER AND DRIER AIR INTO THE
REGION. SHOWERS AND THUNDERSTORMS WILL PRECEDE AND ACCOMPANY THE
PASSAGE OF THE FRONT. AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW
CRITICAL LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE ALONG WITH
BREEZY WINDS ON SUNDAY. ON MONDAY...RELATIVE HUMIDITIES WILL DROP
BELOW CRITICAL LEVELS OVER SOUTH CENTRAL ALABAMA AND THE NORTHWEST
FLORIDA PANHANDLE ON MONDAY.

FLZ001>006-008-161315-
/O.NEW.KMOB.FW.W.0082.071216T1700Z-071216T2300Z/
/O.NEW.KMOB.FW.A.0073.071217T1600Z-071218T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
312 PM CST SAT DEC 15 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 5 PM CST SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 5 PM CST SUNDAY. A
FIRE WEATHER WATCH HAS ALSO BEEN ISSUED AND IS IN EFFECT FROM MONDAY
MORNING THROUGH MONDAY AFTERNOON.

BREEZY WINDS WILL OCCUR ON SUNDAY WHILE RELATIVE HUMIDITIES DROP
BELOW 35 PERCENT.  MUCH DRIER CONDITIONS FOLLOW FOR MONDAY.

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.

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

$$

ALZ056>060-161315-
/O.NEW.KMOB.FW.A.0073.071217T1700Z-071217T2300Z/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-
312 PM CST SAT DEC 15 2007

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY
AFTERNOON. 

RELATIVE HUMIDITIES WILL DROP BELOW 25 PERCENT FOR SLIGHTLY LONGER
THAN FOUR HOURS.

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

$$
2 follow-up statements
000 
WWUS84 KMOB 161018
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
418 AM CST SUN DEC 16 2007

...A RED FLAG WARNING IS IN EFFECT FROM 11 AM THIS MORNING TO 5 PM CST
THIS AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE DUE TO A LONG
DURATION OF LOW RELATIVE HUMIDITY BELOW 35 PERCENT...

...A FIRE WEATHER WATCH IS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE AND SOUTH
CENTRAL ALABAMA DUE TO THE POTENTIAL OF A LONG DURATION OF LOW
RELATIVE HUMIDITIES...

.A MUCH COOLER AND DRIER AIRMASS WILL CONTINUE TO MOVE INTO THE
REGION TODAY AND MONDAY. AFTERNOON RELATIVE HUMIDITIES WILL DROP
BELOW CRITICAL LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE ALONG WITH
BREEZY WINDS ON SUNDAY. ON MONDAY...RELATIVE HUMIDITIES WILL
POTENTIALLY DROP BELOW CRITICAL LEVELS OVER SOUTH CENTRAL ALABAMA AND
THE NORTHWEST FLORIDA PANHANDLE.

FLZ001>006-008-162115-
/O.CON.KMOB.FW.W.0082.071216T1700Z-071216T2300Z/
/O.CON.KMOB.FW.A.0073.071217T1600Z-071218T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
418 AM CST SUN DEC 16 2007

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
5 PM CST THIS AFTERNOON...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
5 PM CST THIS AFTERNOON. A FIRE WEATHER WATCH REMAINS IN EFFECT
FROM MONDAY MORNING THROUGH MONDAY 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
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.

$$

ALZ056>060-162115-
/O.CON.KMOB.FW.A.0073.071217T1700Z-071217T2300Z/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-
418 AM CST SUN DEC 16 2007

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

A FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON. 

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 162048
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
248 PM CST SUN DEC 16 2007

...THE RED FLAG WARNING HAS BEEN CANCELED FOR THE NORTHWEST
FLORIDA PANHANDLE FOR THIS AFTERNOON...

...THE FIRE WEATHER WATCH HAS BEEN CANCELED FOR SOUTH CENTRAL
ALABAMA FOR MONDAY AFTERNOON...

...A FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE DUE
TO THE POTENTIAL OF A LONG DURATION OF LOW RELATIVE HUMIDITIES...

.DISCUSSION...DRY AND COLD HIGH PRESSURE WILL MOVE ACROSS THE REGION
THROUGH MONDAY NIGHT THEN MOVE TO NEAR THE EAST COAST ON TUESDAY.
UNSEASONABLY COOL TEMPERATURES CONTINUE THROUGH MONDAY NIGHT THEN
A WARMING TREND ENSUES ON TUESDAY THROUGH WEDNESDAY AS A LOW
PRESSURE SYSTEM ADVANCES ACROSS THE PLAINS.  AFTERNOON RELATIVE
HUMIDITIES WILL REMAIN ABOVE CRITICAL LEVELS THROUGH THIS AFTERNOON
BUT WILL DROP BELOW CRITICAL LEVELS FOR A LONG DURATION OVER THE
NORTHWEST FLORIDA PANHANDLE ON MONDAY.  RELATIVE HUMIDITIES WILL
DROP TO NEAR CRITICAL LEVELS OVER SOUTH CENTRAL ALABAMA ON MONDAY
AFTERNOON BUT WILL NOT SATISFY DURATION REQUIREMENTS.  GULF MOISTURE
WILL GRADUALLY RETURN TO THE REGION TUESDAY THROUGH WEDNESDAY.

FLZ001>006-008-171300-
/O.CAN.KMOB.FW.W.0082.000000T0000Z-071216T2300Z/
/O.CON.KMOB.FW.A.0073.071217T1600Z-071218T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
248 PM CST SUN DEC 16 2007

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...
...RED FLAG WARNING IS CANCELLED FOR THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELED THE RED FLAG
WARNING FOR THE NORTHWEST FLORIDA PANHANDLE FOR THIS AFTERNOON. A
FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON.

AFTERNOON RELATIVE HUMIDITIES WILL REMAIN ABOVE CRITICAL LEVELS
THROUGH THIS AFTERNOON BUT WILL DROP BELOW CRITICAL LEVELS FOR A LONG
DURATION OVER THE NORTHWEST FLORIDA PANHANDLE ON MONDAY.

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

$$

ALZ056>060-162200-
/O.CAN.KMOB.FW.A.0073.071217T1700Z-071217T2300Z/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-
248 PM CST SUN DEC 16 2007

...FIRE WEATHER WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELED THE FIRE
WEATHER WATCH. 

RELATIVE HUMIDITIES WILL DROP TO NEAR CRITICAL LEVELS OVER SOUTH
CENTRAL ALABAMA ON MONDAY AFTERNOON BUT WILL NOT SATISFY DURATION
REQUIREMENTS...THUS THE FIRE WEATHER WATCH HAS BEEN CANCELED.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 15, 11:19 AM CSTSpecial Marine WarningMOB56 min
Dec 15, 1:06 PM CSTSpecial Marine WarningMOB24 min
Dec 15, 1:27 PM CSTSpecial Marine WarningMOB63 min
Dec 15, 1:53 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa52 min
Dec 15, 2:33 PM CSTTornado WarningMOBOkaloosa, Santa Rosa42 min
Dec 15, 3:12 PM CSTFire Weather WatchMOBWalton38 hr
Dec 15, 3:20 PM CSTWind AdvisoryMOB20 hr
Dec 15, 3:27 PM CSTSpecial Marine WarningMOB63 min
Dec 15, 4:05 PM CSTTornado WarningMOBOkaloosa40 min

Nearby

Red Flag Warnings in Florida, 2007Every red flag warning in 2007

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.