Alert archive / Alabama / Red Flag Warnings in 2008

Red Flag Warning 8, NWS Mobile, AL

January 19, 2008Walton County, Florida; 9 counties in Alabama

NWS Mobile, AL issued this red flag warning at Jan 19, 2008, 2:52 PM CST for Walton County, Florida; 9 counties in Alabama. It took effect at Jan 20, 2008, 10:00 AM CST. It was in force for 8 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
Jan 19, 2008, 2:52 PM CST (20:52 UTC)
In effect from
Jan 20, 2008, 10:00 AM CST
Expired
Jan 20, 2008, 6:00 PM CST
In force
8 hr
Issued by
NWS Mobile, AL

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

The radar

The Mobile radar (KMOB), 146 km from the middle of the area, began a volume at 20:52 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, 8.9 hours before the alert went out and 187 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 2008-01-19Temperature 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, Birmingham, AL at 12:00Z on 2008-01-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -89 square meters per square second.1939587897117136Sfc1 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
814 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
-89 m²/s²
0-3 km storm-relative helicity
31 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 192052
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
252 PM CST SAT JAN 19 2008

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM CST SUNDAY OVER
THE WESTERN FLORIDA PANHANDLE DUE TO AFTERNOON RELATIVE HUMIDITY
VALUES BELOW 35 PERCENT FOR FOUR OR MORE HOURS...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON OVER THE WESTERN FLORIDA PANHANDLE DUE TO THE 
POTENTIAL FOR AFTERNOON RELATIVE HUMIDITY VALUES OF 20 TO 25
PERCENT...

.A MUCH DRIER AIR MASS WILL FOLLOW ON THE HEELS OF AN EXITING LOW
PRESSURE AREA SUNDAY AND MONDAY. AFTERNOON RELATIVE HUMIDITY VALUES
WILL DROP INTO THE LOWER TO MID 20S ACROSS MOST OF THE FORECAST
AREA...EXCEPT OVER THE SNOW BAND IN THE NORTHEAST PORTION OF THE
FORECAST AREA WHERE LOCAL RH VALUES WILL BE HIGHER. MODERATE LOW
LEVEL MOISTURE WILL RETURN MONDAY NIGHT THROUGH SATURDAY.


FLZ001>006-008-201300-
/O.UPG.KMOB.FW.A.0005.080120T1700Z-080121T0000Z/
/O.NEW.KMOB.FW.W.0008.080120T1600Z-080121T0000Z/
/O.NEW.KMOB.FW.A.0006.080121T1500Z-080121T2200Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
252 PM CST SAT JAN 19 2008

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM CST SUNDAY
OVER THE WESTERN FLORIDA PANHANDLE DUE TO AFTERNOON RELATIVE
HUMIDITY VALUES BELOW 35 PERCENT FOR FOUR OR MORE HOURS...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON OVER THE WESTERN FLORIDA PANHANDLE DUE TO THE 
POTENTIAL FOR AFTERNOON RELATIVE HUMIDITY VALUES OF 20 TO 25
PERCENT...

A VERY DRY AIRMASS WILL MOVE INTO THE REGION ON SUNDAY AND MONDAY
BEHIND A COLD FRONT PUSHING SOUTH OF THE AREA.  LOWEST DAYTIME
HUMIDITY VALUES WILL BETWEEN 20 AND 25 PERCENT ON BOTH DAYS.  A
MODERATE NORTHERLY WIND WILL ALSO PERSIST IN THE WAKE OF THE FRONT.
THE DRY CONDITIONS...LEADING TO LIKELY FIRE WEATHER DANGERS...WILL
REMAIN THROUGH LATE MONDAY.

A RED FLAG WARNING MEANS THAT DANGEROUS FIRE WEATHER CONDITIONS
ARE LIKELY TO OCCUR. A COMBINATION OF LOW RELATIVE HUMIDITY AND MILD
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.

$$
3 follow-up statements
000 
WWUS84 KMOB 201331
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
731 AM CST SUN JAN 20 2008

...RED FLAG WARNING IS IN EFFECT FROM 10 AM TO 6 PM CST TODAY OVER
THE WESTERN FLORIDA PANHANDLE DUE TO AFTERNOON RELATIVE HUMIDITY
VALUES BELOW 35 PERCENT FOR FOUR OR MORE HOURS...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON OVER THE WESTERN FLORIDA PANHANDLE DUE TO THE
POTENTIAL FOR LONG DURATION AFTERNOON RELATIVE HUMIDITY VALUES 
BELOW 35 PERCENT FOR FOUR OR MORE HOURS...

.A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. AFTERNOON
RELATIVE HUMIDITY VALUES WILL DROP INTO THE LOW TO MID 20S ACROSS
MOST OF THE FORECAST AREA BOTH THIS AFTERNOON AND MONDAY AFTERNOON. 

FLZ001>006-008-210545-
/O.CON.KMOB.FW.W.0008.080120T1600Z-080121T0000Z/
/O.CON.KMOB.FW.A.0006.080121T1500Z-080121T2200Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
731 AM CST SUN JAN 20 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON. A FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY
MORNING THROUGH MONDAY AFTERNOON. 

A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. AFTERNOON
RELATIVE HUMIDITY VALUES WILL DROP INTO THE LOW TO MID 20S ACROSS
MOST OF THE FORECAST AREA BOTH THIS AFTERNOON AND MONDAY AFTERNOON. 
A MODERATE NORTHERLY WIND WILL ALSO PERSIST TODAY IN THE WAKE OF A
COLD FRONT. THE DRY CONDITIONS...LEADING TO LIKELY FIRE WEATHER
DANGERS...WILL REMAIN THROUGH LATE MONDAY.

A RED FLAG WARNING MEANS THAT DANGEROUS FIRE WEATHER CONDITIONS
ARE LIKELY TO OCCUR. A COMBINATION OF LOW RELATIVE HUMIDITY AND
MILD 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.

$$
000 
WWUS84 KMOB 201754 AAA
RFWMOB

RED FLAG WARNING...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
1150 AM CST SUN JAN 20 2008

...RED FLAG WARNING IS IN EFFECT UNTIL 6 PM CST OVER THE WESTERN
FLORIDA PANHANDLE DUE TO AFTERNOON RELATIVE HUMIDITY VALUES BELOW 35
PERCENT FOR FOUR OR MORE HOURS...

...RED FLAG WARNING IS IN EFFECT UNTIL 5 PM CST OVER SOUTH CENTRAL
ALABAMA AND PORTIONS OF SOUTHWEST ALABAMA DUE TO AFTERNOON RELATIVE
HUMIDITY VALUES BELOW 25 PERCENT FOR FOUR HOURS...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON OVER THE WESTERN FLORIDA PANHANDLE DUE TO THE
POTENTIAL FOR LONG DURATION AFTERNOON RELATIVE HUMIDITY VALUES
BELOW 35 PERCENT FOR FOUR OR MORE HOURS...

.A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. AFTERNOON RELATIVE 
HUMIDITY VALUES WILL DROP INTO THE UPPER TEENS AND LOWER 20S ACROSS 
MOST OF THE FORECAST AREA THIS AFTERNOON AND IN THE 20S MONDAY 
AFTERNOON.


ALZ051-053>060-202300-
/O.EXB.KMOB.FW.W.0008.080120T1900Z-080120T2300Z/
CHOCTAW-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA-
COVINGTON-
1150 AM CST SUN JAN 20 2008

...RED FLAG WARNING IN EFFECT UNTIL 5 PM CST OVER SOUTH CENTRAL 
ALABAMA AND PORTIONS OF SOUTHWEST ALABAMA DUE TO AFTERNOON RELATIVE 
HUMIDITY VALUES BELOW 25 PERCENT FOR FOUR HOURS...

A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. AFTERNOON RELATIVE 
HUMIDITY VALUES WILL DROP INTO THE UPPER TEENS AND LOWER 20S ACROSS 
MOST OF THE FORECAST AREA THIS AFTERNOON AND IN THE 20S MONDAY 
AFTERNOON. A MODERATE NORTHERLY WIND WILL ALSO PERSIST TODAY IN THE 
WAKE OF A COLD FRONT. THE DRY CONDITIONS...LEADING TO LIKELY FIRE 
WEATHER DANGERS...WILL REMAIN THROUGH LATE MONDAY.

A RED FLAG WARNING MEANS THAT DANGEROUS FIRE WEATHER CONDITIONS
ARE LIKELY TO OCCUR. A COMBINATION OF LOW RELATIVE HUMIDITY AND
MILD 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.

$$

FLZ001>006-008-211000-
/O.CON.KMOB.FW.W.0008.000000T0000Z-080121T0000Z/
/O.CON.KMOB.FW.A.0006.080121T1500Z-080121T2200Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
1150 AM CST SUN JAN 20 2008

...RED FLAG WARNING IS IN EFFECT UNTIL 6 PM CST OVER THE WESTERN 
FLORIDA PANHANDLE DUE TO AFTERNOON RELATIVE HUMIDITY VALUES BELOW 35 
PERCENT FOR FOUR OR MORE HOURS...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY 
AFTERNOON OVER THE WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL 
FOR LONG DURATION AFTERNOON RELATIVE HUMIDITY VALUES BELOW 35 
PERCENT FOR FOUR OR MORE HOURS...

A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. AFTERNOON RELATIVE 
HUMIDITY VALUES WILL DROP INTO THE UPPER TEENS AND LOWER 20S ACROSS 
MOST OF THE FORECAST AREA THIS AFTERNOON AND IN THE 20S MONDAY 
AFTERNOON. A MODERATE NORTHERLY WIND WILL ALSO PERSIST TODAY IN THE 
WAKE OF A COLD FRONT. THE DRY CONDITIONS...LEADING TO LIKELY FIRE 
WEATHER DANGERS...WILL REMAIN THROUGH LATE MONDAY.

A RED FLAG WARNING MEANS THAT DANGEROUS FIRE WEATHER CONDITIONS
ARE LIKELY TO OCCUR. A COMBINATION OF LOW RELATIVE HUMIDITY AND
MILD 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.

$$
000 
WWUS84 KMOB 202040
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
240 PM CST SUN JAN 20 2008

...RED FLAG WARNING HAS BEEN CANCELED FOR SOUTH CENTRAL AND
SOUTHWEST ALABAMA...

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST OVER THE
WESTERN FLORIDA PANHANDLE DUE TO AFTERNOON RELATIVE HUMIDITY VALUES
BELOW 35 PERCENT FOR FOUR OR MORE HOURS...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY
AFTERNOON OVER THE WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL FOR
LONG DURATION AFTERNOON RELATIVE HUMIDITY VALUES BELOW 35 PERCENT FOR
FOUR OR MORE HOURS...

.A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. AFTERNOON RELATIVE
HUMIDITY VALUES ON MONDAY WILL DROP INTO THE MID 20S TO MID 30S ACROSS
MOST OF THE FORECAST AREA. LOW LEVEL MOISTURE WILL INCREASE LATE
MONDAY AND PERSIST THROUGH MID WEEK.


ALZ051-053>060-202145-
/O.CAN.KMOB.FW.W.0008.000000T0000Z-080120T2300Z/
CHOCTAW-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA-
COVINGTON-
240 PM CST SUN JAN 20 2008

...RED FLAG WARNING IS CANCELLED...

AFTERNOON RELATIVE HUMIDITY VALUES HAVE FALLING INTO THE MID 20S
ACROSS SOUTH CENTRAL ALABAMA AND PORTIONS OF SOUTHWEST ALABAMA...BUT
THE MINIMUM FOUR HOUR DURATION REQUIRED FOR A RED FLAG WARNING WILL
NOT BE MET. THEREFORE...THE NATIONAL WEATHER SERVICE IN MOBILE HAS
CANCELED THE RED FLAG WARNING FOR TODAY.

$$

FLZ002-004-006-008-210000-
/O.CAN.KMOB.FW.A.0006.080121T1500Z-080121T2200Z/
/O.CON.KMOB.FW.W.0008.000000T0000Z-080121T0000Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
240 PM CST SUN JAN 20 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...
...FIRE WEATHER WATCH IS CANCELLED...

A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. HOWEVER...AFTERNOON
RELATIVE HUMIDITY VALUES ON MONDAY WILL IMPROVE TO THE MID TO UPPER
30S ACROSS MOST OF THE COASTAL SECTIONS. THEREFORE...THE NATIONAL
WEATHER SERVICE IN MOBILE HAS CANCELED THE FIRE WEATHER WATCH FOR
MONDAY. THE LOW LEVEL MOISTURE WILL CONTINUE TO INCREASE LATE MONDAY
AND PERSIST THROUGH MID WEEK.

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 MILD TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

$$

FLZ001-003-005-211245-
/O.CON.KMOB.FW.W.0008.000000T0000Z-080121T0000Z/
/O.CON.KMOB.FW.A.0006.080121T1500Z-080121T2200Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
240 PM CST SUN JAN 20 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

A MUCH DRIER AIR MASS HAS MOVED INTO THE REGION. AFTERNOON RELATIVE
HUMIDITY VALUES ON MONDAY WILL DROP INTO THE LOW TO MID 30S ACROSS
MOST OF THE WATCH AREA. THEREFORE...THE NATIONAL WEATHER SERVICE IN
MOBILE WILL CONTINUE THE FIRE WEATHER WATCH FOR MONDAY ACROSS THE
INLAND SECTIONS OF THE WESTERN FLORIDA PANHANDLE. LOW LEVEL MOISTURE
WILL THEN INCREASE LATE MONDAY AND PERSIST THROUGH MID WEEK.

A RED FLAG WARNING MEANS THAT DANGEROUS FIRE WEATHER CONDITIONS
ARE LIKELY TO OCCUR. A COMBINATION OF LOW RELATIVE HUMIDITY AND
MILD 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.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 19, 4:01 AM CSTHard Freeze WarningMOB29 hr
Jan 19, 10:17 AM CSTWinter Weather AdvisoryMOB3 hr
Jan 19, 1:36 PM CSTHard Freeze WatchMOB15 hr
Jan 19, 2:52 PM CSTFire Weather WatchMOBWalton49 hr
Jan 18, 9:35 PM CSTWinter Weather AdvisoryMOBChoctaw, Clarke, Wilcox10 hr
Jan 19, 7:18 AM CSTSnow AdvisoryMOBChoctaw, Clarke, Washington, Wilcox3 hr
Jan 19, 10:17 AM CSTHeavy Snow WarningMOBChoctaw, Clarke, Monroe, Washington, Wilcox3 hr

Nearby

Red Flag Warnings in Alabama, 2008Red 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.