Alert archive / Alabama / Red Flag Warnings in 2007

Red Flag Warning 54, NWS Mobile, AL

May 17, 2007Walton County, Florida; 7 counties in Alabama

NWS Mobile, AL issued this red flag warning at May 17, 2007, 6:30 AM CDT for Walton County, Florida; 7 counties in Alabama. It took effect at May 17, 2007, 1:00 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
May 17, 2007, 6:30 AM CDT (11:30 UTC)
In effect from
May 17, 2007, 1:00 PM CDT
Expired
May 17, 2007, 8:00 PM CDT
In force
7 hr
Issued by
NWS Mobile, AL

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 11.5 hours before the alert went out and 194 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 00:00Z on 2007-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 486 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2007-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
486 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
32 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 171150
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
630 AM CDT THU MAY 17 2007

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT 
THIS EVENING FOR SOUTH CENTRAL ALABAMA AND THE WESTERN FLORIDA 
PANHANDLE DUE TO CRITICAL RELATIVE HUMIDITY VALUES...

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM CDT FRIDAY FOR THE 
WESTERN FLORIDA PANHANDLE DUE TO LONG DURATIONS OF CRITICALLY LOW 
RELATIVE HUMIDITY LESS THAN 35 PERCENT...

...FIRE WEATHER WATCH IN EFFECT FROM 1 PM TO 7 PM CDT FRIDAY FOR 
SOUTH CENTRAL ALABAMA DUE TO THE POTENTIAL OF CRITICALLY LOW 
RELATIVE HUMIDITY LESS THAN 30 PERCENT AND SUSTAINED WIND SPEEDS OF 
10 MPH OR GREATER...


.A VERY DRY AIRMASS WILL MOVE INTO THE REGION FOR THE REMAINDER OF
THE WEEK BEHIND A COLD FRONT PUSHING SOUTH OF THE AREA. A
STRENGTHENING NORTH WIND WILL ALSO OCCUR TODAY IN THE WAKE OF THE
FRONT. AS A RESULT...RED FLAG WARNINGS WILL BE IN EFFECT FOR SOUTH
CENTRAL ALABAMA AND THE WESTERN FLORIDA PANHANDLE TODAY. THE DRY
CONDITIONS...LEADING TO POSSIBLE FIRE WEATHER DANGERS...WILL REMAIN
THROUGH THE WEEKEND.


ALZ051>053-061>064-171300-
/O.CAN.KMOB.FW.A.0043.070517T1600Z-070518T0100Z/
CHOCTAW-WASHINGTON-CLARKE-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-
630 AM CDT THU MAY 17 2007

...FIRE WEATHER WATCH IS CANCELED...

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

THE KEETCH-BYRAM DROUGHT INDEX REMAINS BELOW 500 ACROSS SOUTHWEST
ALABAMA. THEREFORE...THE FIRE WEATHER WATCH WAS NOT UPGRADED TO A RED
FLAG WARNING...AND HAS BEEN CANCELED.

$$

FLZ001>006-008-172000-
/O.UPG.KMOB.FW.A.0043.070517T1600Z-070518T0100Z/
/O.NEW.KMOB.FW.W.0054.070517T1800Z-070518T0100Z/
/O.NEW.KMOB.FW.W.0055.070518T1500Z-070519T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
630 AM CDT THU MAY 17 2007

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM CDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT
THIS EVENING. A RED FLAG WARNING HAS ALSO BEEN ISSUED. THIS RED
FLAG WARNING IS IN EFFECT FROM 10 AM TO 7 PM CDT FRIDAY.

A VERY DRY AIRMASS WILL MOVE INTO THE REGION FOR THE REMAINDER OF
THE WEEK BEHIND A COLD FRONT PUSHING SOUTH OF THE AREA. A
STRENGTHENING NORTH WIND WILL ALSO OCCUR TODAY IN THE WAKE OF THE
FRONT. THE DRY CONDITIONS...LEADING TO POSSIBLE FIRE WEATHER
DANGERS...WILL REMAIN THROUGH 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.

$$

ALZ054>060-172000-
/O.UPG.KMOB.FW.A.0043.070517T1600Z-070518T0100Z/
/O.NEW.KMOB.FW.W.0054.070517T1800Z-070518T0100Z/
/O.NEW.KMOB.FW.A.0044.070518T1800Z-070519T0000Z/
WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-
630 AM CDT THU MAY 17 2007

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT
THIS EVENING. A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED. THIS
FIRE WEATHER WATCH IS IN EFFECT FROM 1 PM TO 7 PM CDT FRIDAY.

A VERY DRY AIRMASS WILL MOVE INTO THE REGION FOR THE REMAINDER OF THE
WEEK BEHIND A COLD FRONT PUSHING SOUTH OF THE AREA. A STRENGTHENING
NORTH WIND WILL ALSO OCCUR TODAY IN THE WAKE OF THE FRONT. THE DRY
CONDITIONS...LEADING TO POSSIBLE FIRE WEATHER DANGERS...WILL REMAIN
THROUGH 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.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
COULD BE MET. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG
WARNINGS.

$$
1 follow-up statement
000 
WWUS84 KMOB 172040
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
340 PM CDT THU MAY 17 2007

...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR SOUTH
CENTRAL ALABAMA AND THE WESTERN FLORIDA PANHANDLE DUE TO LONG
DURATION OF LOW RELATIVE HUMIDITY...STRENGTHING WIND...AND HIGH KBDI...

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM CDT FRIDAY FOR
THE WESTERN FLORIDA PANHANDLE DUE TO LONG DURATION OF LOW RELATIVE
HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FROM 1 PM TO 7 PM CDT FRIDAY FOR
SOUTH CENTRAL ALABAMA DUE TO RELATIVE HUMIDITY LESS THAN 30 PERCENT
...HIGH KBDI...AND SUSTAINED WIND SPEEDS OF 10 MPH OR GREATER...

.VERY DRY AIR WILL DOMINATE THE FIRE WEATHER PICTURE FOR THE 
REMAINDER OF THIS WEEK AND PART OF THE WEEKEND. RED FLAG WARNING FOR
FRIDAY IN WRN FLORIDA IS ACCOMPANIED BY NOTED DECREASE IN CALCULATED
RH FOR THAT DAY FROM THIS MODEL CYCLE. STRENGTHENING NORTH WIND WILL
COMBINE WITH WIND ABOVE 10 MPH...AFTERNOON RH NEAR 30 PERCENT...AND KBDI
ABOVE 500...RED FLAG WARNING IN PLACE FRIDAY FOR THE WESTERN FLORIDA
PANHANDLE WITH A WATCH FOR SOUTH CENTRAL ALABAMA. DRY CONDITIONS
LEADING TO POSSIBLE FIRE DANGER WILL REMAIN THROUGH THE WEEKEND.

FLZ001>006-008-180445-
/O.CON.KMOB.FW.W.0054.000000T0000Z-070518T0100Z/
/O.CON.KMOB.FW.W.0055.070518T1500Z-070519T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
340 PM CDT THU MAY 17 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING FOR THE WESTERN FLORIDA PANHANDLE DUE TO LONG DURATION OF 
LOW RELATIVE HUMIDITY...
...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT
FRIDAY FOR THE WESTERN FLORIDA PANHANDLE DUE TO LONG DURATION OF 
LOW RELATIVE HUMIDITY...

.VERY DRY AIR WILL DOMINATE THE FIRE WEATHER PICTURE FOR THE
REMAINDER OF THIS WEEK AND PART OF THE WEEKEND. RED FLAG WARNING FOR
FRIDAY IN THE WEST FLORIDA PANHANDLE IS ACCOMPANIED BY A NOTED
DECREASE IN FORECAST HUMIDITY FOR FRIDAY. STRENGTHENING NORTH WIND
WILL COMBINE WITH AFTERNOON RH NEAR 30 PERCENT AND DRY FUEL TO
INCREASE FIRE DANGER. DRY CONDITIONS LEADING TO POSSIBLE FIRE DANGER
WILL REMAIN THROUGH THE WEEKEND.

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

$$

ALZ054>060-180445-
/O.CON.KMOB.FW.W.0054.000000T0000Z-070518T0100Z/
/O.CON.KMOB.FW.A.0044.070518T1800Z-070519T0000Z/
WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-
340 PM CDT THU MAY 17 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING FOR SOUTH CENTRAL ALABAMA DUE TO LOW HUMIDITY...STRENGTHING 
WIND...AND HIGH KBDI...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH FRIDAY EVENING FOR SOUTH CENTRAL ALABAMA  DUE TO LOW
HUMIDITY...STRENGTHING WIND...AND HIGH KBDI...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING.
A FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH FRIDAY EVENING. 

.VERY DRY AIR WILL DOMINATE THE FIRE WEATHER PICTURE FOR THE
REMAINDER OF THIS WEEK AND PART OF THE WEEKEND. RED FLAG WARNING FOR
FRIDAY IN WEST FLORIDA PANHANDLE IS ACCOMPANIED BY A NOTED DECREASE IN
CALCULATED RH FOR THAT DAY FROM THIS MODEL CYCLE. STRENGTHENING NORTH
WIND WILL COMBINE WITH WIND ABOVE 10 MPH...AFTERNOON RH NEAR 30
PERCENT...AND KBDI ABOVE 500...MEANS A FIRE WEATHER WATCH IS
WARRANTED FOR SOUTH CENTRAL ALABAMA. DRY CONDITIONS LEADING TO
POSSIBLE FIRE DANGER WILL REMAIN THROUGH 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.

A FIRE WEATHER WATCH MEANS THAT DANGEROUS FIRE WEATHER CONDITIONS
ARE LIKELY. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG
WARNINGS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 6:30 AM CDTRed Flag WarningMOBWalton37 hr
May 17, 6:30 AM CDTFire Weather WatchMOBButler, Conecuh, Covington, Crenshaw, Escambia, Monroe and 1 more24 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.