Alert archive / Alabama / Red Flag Warnings in 2014

Red Flag Warning 10, NWS Mobile, AL

February 26, 201410 counties in Alabama

NWS Mobile, AL issued this red flag warning at Feb 26, 2014, 12:21 PM CST for 10 counties in Alabama. It took effect at Feb 27, 2014, 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
Feb 26, 2014, 12:21 PM CST (18:21 UTC)
In effect from
Feb 27, 2014, 11:00 AM CST
Expired
Feb 27, 2014, 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 18:21 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, 6.4 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 2014-02-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 12:00Z on 2014-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -173 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
436 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-173 m²/s²
0-3 km storm-relative helicity
-14 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.

335 
WWUS84 KMOB 261821
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
1221 PM CST WED FEB 26 2014

...RED FLAG WARNING NOW IN EFFECT FROM LATE THURSDAY MORNING THROUGH
THURSDAY AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A
LONG DURATION OF CRITICALLY LOW RELATIVE HUMIDITY...

.HIGH PRESSURE BUILDS ACROSS THE CENTRAL GULF COAST THURSDAY...BRINGING
DRIER AND COOLER AIR INTO THE AREA. AFTERNOON RELATIVE HUMIDITY
VALUES WILL DROP BELOW CRITICAL LEVELS FOR SEVERAL HOURS OVER
SOUTHWEST AND SOUTH CENTRAL ALABAMA ON THURSDAY. OTHER CRITERIA WILL
NOT BE SATISFIED FOR SOUTHEAST MISSISSIPPI NOR THE NORTHWEST FLORIDA
PANHANDLE. 

ALZ051>064-271200-
/O.UPG.KMOB.FW.A.0002.140227T1700Z-140228T0000Z/
/O.NEW.KMOB.FW.W.0010.140227T1700Z-140228T0000Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-
1221 PM CST WED FEB 26 2014

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST THURSDAY FOR 
SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION OF 
CRITICALLY LOW RELATIVE HUMIDITY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 6 PM CST THURSDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 


* RELATIVE HUMIDITY: MINIMUM VALUES 17 TO 20 PERCENT.

* IMPACTS: ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR
  BURNING IS NOT RECOMMENDED.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.  A COMBINATION OF LOW
RELATIVE HUMIDITY...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE
BEHAVIOR.

&&

$$
2 follow-up statements
548 
WWUS84 KMOB 271159
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
559 AM CST THU FEB 27 2014

...RED FLAG WARNING IN EFFECT FROM LATE THIS MORNING THROUGH THIS
AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG
DURATION OF CRITICALLY LOW RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FRIDAY AFTERNOON FOR PORTIONS OF
SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION OF
CRITICALLY LOW RELATIVE HUMIDITY...

.MUCH DRIER AIR WILL SPREAD ACROSS THE REGION TODAY AS HIGH PRESSURE
BUILDS ACROSS THE LOWER MISSISSIPPI RIVER VALLEY. AFTERNOON RELATIVE
HUMIDITY VALUES WILL DROP BELOW CRITICAL LEVELS FOR SEVERAL HOURS
OVER SOUTHWEST AND SOUTH CENTRAL ALABAMA THIS AFTERNOON. CRITICALLY
LOW RELATIVE HUMIDITY MAY IMPACT LOCATIONS GENERALLY NORTHEAST OF A
BUTLER...ANDALUSIA LINE AGAIN FRIDAY AFTERNOON. OTHER CRITERIA WILL
NOT BE SATISFIED OVER SOUTHEAST MISSISSIPPI AND THE NORTHWEST FLORIDA
PANHANDLE.  

ALZ051-053>060-280000-
/O.NEW.KMOB.FW.A.0003.140228T1800Z-140228T2200Z/
/O.CON.KMOB.FW.W.0010.140227T1700Z-140228T0000Z/
CHOCTAW-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA-
COVINGTON-
559 AM CST THU FEB 27 2014

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM CST THIS EVENING OVER SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO
A LONG DURATION OF CRITICALLY LOW RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FRIDAY AFTERNOON FOR PORTIONS OF
SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION OF
CRITICALLY LOW RELATIVE HUMIDITY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FRIDAY AFTERNOON. 

* RELATIVE HUMIDITY: MINIMUM VALUES OF 17 TO 22 PERCENT FOR 4 TO 6
  HOURS THIS AFTERNOON...AND NEAR 23 PERCENT FOR AROUND 4 HOURS
  FRIDAY AFTERNOON.

* IMPACTS: ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
  OUTDOOR BURNING IS NOT RECOMMENDED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.  A COMBINATION OF LOW
RELATIVE HUMIDITY...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE
BEHAVIOR.

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

&&

$$

ALZ052-061>064-280000-
/O.CON.KMOB.FW.W.0010.140227T1700Z-140228T0000Z/
WASHINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-LOWER BALDWIN-
559 AM CST THU FEB 27 2014

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM CST THIS EVENING FOR SOUTHWEST ALABAMA DUE TO A LONG DURATION
OF CRITICALLY LOW RELATIVE HUMIDITY...

* RELATIVE HUMIDITY: MINIMUM VALUES OF 17 TO 22 PERCENT FOR 4 TO 6
  HOURS THIS AFTERNOON.

* IMPACTS: ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
  OUTDOOR BURNING IS NOT RECOMMENDED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.  A COMBINATION OF LOW
RELATIVE HUMIDITY...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE
BEHAVIOR.

&&

$$
438 
WWUS84 KMOB 271950
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
150 PM CST THU FEB 27 2014

...RED FLAG WARNING REMAINS IN EFFECT THROUGH 6 PM THIS EVENING
FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION OF
CRITICALLY LOW RELATIVE HUMIDITY...

...FIRE WEATHER WATCH REMAINS IN EFFECT FRIDAY AFTERNOON FOR
PORTIONS OF SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG
DURATION OF CRITICALLY LOW RELATIVE HUMIDITY...

.VERY DRY DRIER AIR CONTINUES OVER THE REGION TODAY UNDER AN AREA OF HIGH
PRESSURE ACROSS THE LOWER MISSISSIPPI RIVER VALLEY. HIGH PRESSURE
BUILDS EAST ON FRIDAY WITH CRITICALLY LOW RELATIVE HUMIDITY POSSIBLY
IMPACTING LOCATIONS GENERALLY NORTHEAST OF A BUTLER...ANDALUSIA LINE
AGAIN FRIDAY AFTERNOON. OTHER CRITERIA WILL NOT BE SATISFIED OVER
SOUTHEAST MISSISSIPPI AND THE NORTHWEST FLORIDA PANHANDLE.

ALZ051-053>060-281200-
/O.CON.KMOB.FW.W.0010.000000T0000Z-140228T0000Z/
/O.CON.KMOB.FW.A.0003.140228T1800Z-140228T2200Z/
CHOCTAW-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA-
COVINGTON-
150 PM CST THU FEB 27 2014

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION 
OF CRITICALLY LOW RELATIVE HUMIDITY...

...FIRE WEATHER WATCH REMAINS IN EFFECT FRIDAY AFTERNOON FOR PORTIONS
OF SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION OF
CRITICALLY LOW RELATIVE HUMIDITY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FRIDAY AFTERNOON.

* RELATIVE HUMIDITY: MINIMUM VALUES OF 17 TO 22 PERCENT FOR REMAINDER
  OF AFTERNOON...AND NEAR 23 PERCENT FOR AROUND 4 HOURS FRIDAY
  AFTERNOON.

* IMPACTS: ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.  A COMBINATION OF LOW
RELATIVE HUMIDITY...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE
BEHAVIOR.

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

&&

$$

ALZ052-061>064-280000-
/O.CON.KMOB.FW.W.0010.000000T0000Z-140228T0000Z/
WASHINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-LOWER BALDWIN-
150 PM CST THU FEB 27 2014

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
FOR SOUTHWEST ALABAMA DUE TO A LONG DURATION OF CRITICALLY LOW
RELATIVE HUMIDITY...

* RELATIVE HUMIDITY: MINIMUM VALUES OF 17 TO 22 PERCENT.

* IMPACTS: ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.  A COMBINATION OF LOW
RELATIVE HUMIDITY...AND DRY FUELS CAN CONTRIBUTE TO EXTREME FIRE
BEHAVIOR.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 26, 2:25 AM CSTSpecial Marine WarningMOB95 min
Feb 26, 4:37 AM CSTSpecial Marine WarningMOB83 min

Nearby

Red Flag Warnings in Alabama, 2014Every red flag warning in 2014

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.