Alert archive / Alabama / Red Flag Warnings in 2011

Red Flag Warning 6, NWS Mobile, AL

January 13, 201110 counties in Alabama

NWS Mobile, AL issued this red flag warning at Jan 13, 2011, 2:33 PM CST for 10 counties in Alabama. It took effect at Jan 14, 2011, 11:00 AM CST. 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
Jan 13, 2011, 2:33 PM CST (20:33 UTC)
In effect from
Jan 14, 2011, 11:00 AM CST
Expired
Jan 14, 2011, 6:00 PM CST
In force
7 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, Washington County, AL, Wilcox County, AL

The radar

The Mobile radar (KMOB), 138 km from the middle of the area, began a volume at 20:38 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, 8.6 hours before the alert went out and 182 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 2011-01-13Temperature 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 2011-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -84 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
868 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-84 m²/s²
0-3 km storm-relative helicity
-11 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.

637 
WWUS84 KMOB 132033
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
233 PM CST THU JAN 13 2011

...RED FLAG WARNING IN EFFECT UNTIL 5 PM CST THIS AFTERNOON FOR
THE NORTHWEST FLORIDA PANHANDLE DUE TO LONG DURATION OF LOW
RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE DUE TO LONG
DURATION OF LOW RELATIVE HUMIDITY AND FOR MARGINALLY LONG DURATION
OF LOW RELATIVE HUMIDITY OVER SOUTHWEST AND SOUTH CENTRAL ALABAMA...

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE DUE TO LONG
DURATION OF LOW RELATIVE HUMIDITY AND FOR MARGINALLY LONG DURATION
OF LOW RELATIVE HUMIDITY OVER SOUTHWEST AND SOUTH CENTRAL ALABAMA...

.DRY HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY WITH
COLD TEMPERATURES GRADUALLY RETURNING TO NEAR SEASONABLE LEVELS THIS
WEEKEND. AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL
LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE EACH AFTERNOON THROUGH
SATURDAY...AND DROP BELOW CRITICAL LEVELS OVER SOUTHWEST AND SOUTH
CENTRAL ALABAMA FOR A MARGINALLY LONG DURATION ON FRIDAY AND SATURDAY
AFTERNOONS.


FLZ001>006-141245-
/O.UPG.KMOB.FW.A.0006.110114T1600Z-110115T0000Z/
/O.NEW.KMOB.FW.W.0006.110114T1700Z-110115T0000Z/
/O.CON.KMOB.FW.W.0005.000000T0000Z-110113T2300Z/
/O.CON.KMOB.FW.A.0007.110115T1600Z-110115T2300Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
233 PM CST THU JAN 13 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON...
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY AFTERNOON...

RELATIVE HUMIDITIES WILL DROP BELOW 35 PERCENT FOR A LONG DURATION
EACH AFTERNOON THROUGH SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 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 FIRE WEATHER FORECASTS AND
POSSIBLE RED FLAG WARNINGS.

&&

$$

ALZ051>064-141245-
/O.EXB.KMOB.FW.A.0007.110115T1800Z-110115T2300Z/
/O.EXT.KMOB.FW.A.0006.110114T1800Z-110114T2200Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-
233 PM CST THU JAN 13 2011

...FIRE WEATHER WATCH NOW IN EFFECT FRIDAY AFTERNOON...
...FIRE WEATHER WATCH IN EFFECT SATURDAY AFTERNOON...

AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW 25 PERCENT FOR A
MARGINALLY LONG DURATION ON FRIDAY AND SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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
863 
WWUS84 KMOB 141229
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
629 AM CST FRI JAN 14 2011

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 4 PM CST THIS
AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO
MARGINALLY LONG DURATION OF LOW RELATIVE HUMIDITY...

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST
THIS EVENING FOR THE NORTHWEST FLORIDA PANHANDLE DUE TO LONG
DURATION OF LOW RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT SATURDAY AFTERNOON FOR SOUTHWEST
AND SOUTH CENTRAL ALABAMA DUE TO MARGINALLY LONG DURATION OF LOW
RELATIVE HUMIDITY AND FOR THE NORTHWEST FLORIDA PANHANDLE DUE TO
LONG DURATION OF LOW RELATIVE HUMIDITY...

.DRY HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY WITH
COLD TEMPERATURES GRADUALLY RETURNING TO NEAR SEASONABLE LEVELS THIS
WEEKEND. AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL
LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE THIS AFTERNOON AND
SATURDAY AFTERNOON FOR A LONG DURATION...AND DROP BELOW CRITICAL
LEVELS OVER SOUTHWEST AND SOUTH CENTRAL ALABAMA FOR A MARGINALLY LONG
DURATION THIS AFTERNOON AND SATURDAY AFTERNOON.

ALZ051>064-150430-
/O.UPG.KMOB.FW.A.0006.110114T1800Z-110114T2200Z/
/O.EXB.KMOB.FW.W.0006.110114T1800Z-110114T2200Z/
/O.CON.KMOB.FW.A.0007.110115T1800Z-110115T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-
629 AM CST FRI JAN 14 2011

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 4 PM CST THIS
AFTERNOON...
...FIRE WEATHER WATCH REMAINS IN EFFECT SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 4 PM CST THIS
AFTERNOON. A FIRE WEATHER WATCH REMAINS IN EFFECT SATURDAY
AFTERNOON.

AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL LEVELS FOR A
MARGINALLY LONG DURATION THIS AFTERNOON AND SATURDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

FLZ001>006-150430-
/O.EXT.KMOB.FW.A.0007.110115T1600Z-110116T0000Z/
/O.CON.KMOB.FW.W.0006.110114T1700Z-110115T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
629 AM CST FRI JAN 14 2011

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

THE FIRE WEATHER WATCH IS NOW IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY AFTERNOON. A RED FLAG WARNING REMAINS IN EFFECT
FROM 11 AM THIS MORNING TO 6 PM CST THIS EVENING. 

AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL LEVELS FOR A
LONG DURATION THIS AFTERNOON AND SATURDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 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 FIRE WEATHER FORECASTS
AND POSSIBLE RED FLAG WARNINGS.

&&

$$
667 
WWUS84 KMOB 142035
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
235 PM CST FRI JAN 14 2011

...RED FLAG WARNING IN EFFECT UNTIL 4 PM CST THIS AFTERNOON
FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO MARGINALLY LONG
DURATION OF LOW RELATIVE HUMIDITY...

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING FOR
THE WESTERN FLORIDA PANHANDLE DUE TO LONG DURATION OF LOW
RELATIVE HUMIDITY...

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 5 PM CST SATURDAY
FOR THE WESTERN FLORIDA PANHANDLE DUE TO LONG DURATION OF LOW
RELATIVE HUMIDITY...

.DRY HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY WITH
COLD TEMPERATURES GRADUALLY RETURNING TO NEAR SEASONABLE LEVELS THIS
WEEKEND. AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL
LEVELS OVER THE WESTERN FLORIDA PANHANDLE SATURDAY AFTERNOON FOR A
LONG DURATION.


ALZ051>064-142200-
/O.CAN.KMOB.FW.A.0007.110115T1800Z-110115T2300Z/
/O.CON.KMOB.FW.W.0006.000000T0000Z-110114T2200Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-
235 PM CST FRI JAN 14 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...
...FIRE WEATHER WATCH IS CANCELLED FOR SATURDAY...

AFTERNOON RELATIVE HUMIDITIES WILL REMAIN BELOW CRITICAL LEVELS
THROUGH 4 PM THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$

FLZ001>006-151245-
/O.UPG.KMOB.FW.A.0007.110115T1600Z-110116T0000Z/
/O.NEW.KMOB.FW.W.0007.110115T1600Z-110115T2300Z/
/O.CON.KMOB.FW.W.0006.000000T0000Z-110115T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
235 PM CST FRI JAN 14 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 5 PM CST SATURDAY...

AFTERNOON RELATIVE HUMIDITIES WILL REMAIN BELOW CRITICAL LEVELS
THROUGH 6 PM THIS AFTERNOON...AND WILL DROP BELOW CRITICAL LEVELS
FOR A LONG DURATION SATURDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 13, 4:09 AM CSTHard Freeze WarningMOB28 hr
Jan 13, 5:45 AM CSTFire Weather WatchMOB33 hr

Nearby

Red Flag Warnings in Alabama, 2011Red Flag Warnings in Florida, 2011Every red flag warning in 2011

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.