Alert archive / Alabama / Red Flag Warnings in 2007

Red Flag Warning 62, NWS Mobile, AL

June 20, 2007Walton County, Florida; 5 counties in Alabama

NWS Mobile, AL issued this red flag warning at Jun 20, 2007, 3:07 PM CDT for Walton County, Florida; 5 counties in Alabama. It took effect at Jun 21, 2007, 5:39 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
Jun 20, 2007, 3:07 PM CDT (20:07 UTC)
In effect from
Jun 21, 2007, 5:39 AM CDT
Expired
Jun 21, 2007, 7:00 PM CDT
In force
13 hr
Issued by
NWS Mobile, AL

Counties Butler County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Walton County, FL

The radar

The Eglin Afb radar (KEVX), 107 km from the middle of the area, began a volume at 20:05 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

Birmingham, AL (KBMX), launched 12:00Z, 8.1 hours before the alert went out and 208 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, Birmingham, AL at 12:00Z on 2007-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 310 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, Birmingham, AL at 12:00Z on 2007-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.193958Sfc1 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
310 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WWUS84 KMOB 202007
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
307 PM CDT WED JUN 20 2007

...A RED FLAG WARNING HAS BEEN ISSUED FOR THE WESTERN FLORIDA
PANHANDLE FOR THURSDAY DUE TO EXPECTED LOW RELATIVE HUMIDITY
VALUES...

...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING FOR PARTS OF SOUTHWEST ALABAMA DUE TO LOW HUMIDITY...

.DRIER AIR WILL IS MOVING SOUTH ON THE HEELS OF A NORTHERLY IN THE
WAKE OF LAST NIGHT COLD FRONT. WINDS WILL BE A BIT GUSTY WEDNESDAY
MORNING BUT WILL SETTLE DOWN BY THURSDAY AFTERNOON...EXCEPT MAY
REMAIN UP A BIT OVER THE EASTERN SECTIONS OF SOUTHWEST
ALABAMA...GENERALLY EAST OF INTERSTATE 65. NO PRECIPITATION EXPECTED
UNTIL LATE IN THE WEEKEND.

FLZ001>006-008-211100-
/O.UPG.KMOB.FW.A.0050.070621T1600Z-070622T0000Z/
/O.NEW.KMOB.FW.W.0062.070621T1600Z-070622T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
307 PM CDT WED JUN 20 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM CDT THURSDAY OVER
THE WEST FLORIDA PANHANDLE DUE TO LOW RELATIVE HUMIDITY...

DRY AIR FLOWING INTO THE AREA BEHIND THE COLD FRONT WILL PERSIST INTO
FRIDAY. WINDS ON THURSDAY MORNING WILL BE A BIT GUSTY BEFORE SETTLING
DOWN IN THE 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.

$$

ALZ056>060-211100-
/O.NEW.KMOB.FW.A.0051.070621T1600Z-070622T0000Z/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-
307 PM CDT WED JUN 20 2007

...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING FOR PARTS OF SOUTHWEST ALABAMA DUE TO LOW HUMIDITY...


DRIER AIR IN THE WAKE OF THE COLD FRONTWILL BE OVER THE AREA ON THURSDAY.
WINDS WILL BE A BIT GUSTY THURSDAY MORNING BUT WILL SETTLE DOWN BY
THURSDAY AFTERNOON...EXCEPT MAY REMAIN UP A BIT OVER THE EASTERN
SECTIONS OF SOUTHWEST ALABAMA...GENERALLY EAST OF INTERSTATE 65. NO
PRECIPITATION EXPECTED UNTIL LATE IN THE WEEKEND.

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 211039
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
539 AM CDT THU JUN 21 2007

...A RED FLAG WARNING HAS BEEN ISSUED FOR THE WESTERN FLORIDA
PANHANDLE FOR THURSDAY DUE TO EXPECTED LOW RELATIVE HUMIDITY
VALUES...

...A RED FLAG WARNING HAS BEEN ISSUED THIS AFTERNOON FOR PARTS OF
SOUTHWEST ALABAMA DUE TO LOW HUMIDITY...

.DRIER AIR WILL IS MOVING SOUTH ON THE HEELS OF A NORTHERLY IN
THE WAKE OF LAST NIGHT COLD FRONT. WINDS WILL BE A BIT GUSTY OVER THE
EASTERN SECTIONS OF SOUTHWEST ALABAMA...GENERALLY EAST OF INTERSTATE
65. NO PRECIPITATION EXPECTED UNTIL LATE IN THE WEEKEND.

ALZ056>060-211845-
/O.UPG.KMOB.FW.A.0051.070621T1600Z-070622T0000Z/
/O.EXA.KMOB.FW.W.0062.070621T1600Z-070622T0000Z/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-
539 AM CDT THU JUN 21 2007

...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...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

DRIER AIR HAS MOVED OVER THE AREA IN THE WAKE OF A COLD FRONT. WINDS
WILL BE A BIT GUSTY THIS MORNING...BUT ARE EXPECTED TO SETTLE DOWN BY
THIS AFTERNOON...EXCEPT MAY REMAIN UP A BIT OVER THE EASTERN SECTIONS
OF SOUTHWEST ALABAMA...GENERALLY EAST OF INTERSTATE 65. NO
PRECIPITATION EXPECTED UNTIL LATE IN THE WEEKEND.

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>006-008-211845-
/O.CON.KMOB.FW.W.0062.070621T1600Z-070622T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
539 AM CDT THU JUN 21 2007

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

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

DRIER AIR HAS MOVED OVER THE AREA IN THE WAKE OF A COLD FRONT. WINDS
WILL BE A BIT GUSTY THIS MORNING...BUT ARE EXPECTED TO SETTLE DOWN BY
THIS AFTERNOON...EXCEPT MAY REMAIN UP A BIT OVER THE EASTERN SECTIONS
OF SOUTHWEST ALABAMA...GENERALLY EAST OF INTERSTATE 65. NO
PRECIPITATION EXPECTED UNTIL LATE IN THE WEEKEND.

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 211844
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
144 PM CDT THU JUN 21 2007

...A RED FLAG WARNING CONTINUES FOR THE WESTERN FLORIDA PANHANDLE
THIS AFTERNOON DUE TO LOW RELATIVE HUMIDITY VALUES...

...A RED FLAG WARNING CONTINUES THIS AFTERNOON FOR PARTS OF
SOUTHWEST ALABAMA DUE TO LOW HUMIDITY AND 10 MPH WINDS...

.DRY AIR WILL REMAIN OVER THE AREA UNTIL SUNSET...EXCEPT FOR THE
COASTAL SECTIONS WHERE AN AFTERNOON SEA BREEZE WILL MODIFY THE LOW
HUMIDITY. NO PRECIPITATION EXPECTED UNTIL LATE IN THE WEEKEND.

ALZ056>060-FLZ001>006-008-220000-
/O.CON.KMOB.FW.W.0062.000000T0000Z-070622T0000Z/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-INLAND ESCAMBIA-
COASTAL ESCAMBIA-INLAND SANTA ROSA-COASTAL SANTA ROSA-
INLAND OKALOOSA-COASTAL OKALOOSA-COASTAL WALTON-
144 PM CDT THU JUN 21 2007

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

DRY AIR WILL REMAIN OVER THE AREA UNTIL SUNSET...EXCEPT FOR THE
COASTAL SECTIONS WHERE AN AFTERNOON SEA BREEZE WILL MODIFY THE LOW
HUMIDITY.

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:16 PM CDTSpecial Marine WarningMOB89 min
Jun 19, 8:05 PM CDTMarine Weather StatementMOB115 min
Jun 20, 5:20 AM CDTFire Weather WatchMOBWalton10 hr
Jun 20, 3:07 PM CDTFire Weather WatchMOBButler, Conecuh, Covington, Crenshaw, Escambia15 hr

Nearby

Red Flag Warnings in Alabama, 2007Red 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.