Alert archive / Alabama / Red Flag Warnings in 2015

Red Flag Warning 4, NWS Mobile, AL

February 12, 201510 counties in Alabama

NWS Mobile, AL issued this red flag warning at Feb 12, 2015, 6:05 PM CST for 10 counties in Alabama. It took effect at Feb 13, 2015, 11:00 AM CST. It was in force for 6 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 12, 2015, 6:05 PM CST (00:05 UTC)
In effect from
Feb 13, 2015, 11:00 AM CST
Expired
Feb 13, 2015, 5:00 PM CST
In force
6 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 00:03 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 00:00Z, 0.1 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 00:00Z on 2015-02-13Temperature 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 00:00Z on 2015-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 square meters per square second.1939587897Sfc1 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
1650 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
3 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.

261 
WWUS84 KMOB 130005
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
605 PM CST THU FEB 12 2015

...A RED FLAG WARNING IS NOW IN EFFECT FROM 11 AM TO 5 PM FRIDAY FOR
INTERIOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO RELATIVE HUMIDITY
VALUES AT OR BELOW 24 PERCENT FOR 4 MORE OR HOURS...

.SURFACE HIGH PRESSURE BUILDS ACROSS THE CENTRAL GULF COAST ON FRIDAY
AND BRINGS CRITICALLY LOW AFTERNOON HUMIDITY VALUES OVER THE INTERIOR
SOUTHWEST AND SOUTH CENTRAL ALABAMA. OTHER CRITERIA DO NOT LOOK TO
BE MET IN SOUTHEAST MISSISSIPPI OR THE WESTERN FLORIDA PANHANDLE.

ALZ051>062-131615-
/O.UPG.KMOB.FW.A.0002.150213T1800Z-150213T2300Z/
/O.NEW.KMOB.FW.W.0004.150213T1700Z-150213T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-
605 PM CST THU FEB 12 2015

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 5 PM CST FRIDAY FOR
INTERIOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO RELATIVE
HUMIDITY VALUES AT OR BELOW 24 PERCENT FOR 4 MORE OR HOURS...

* RELATIVE HUMIDITY: FALLING TO AS LOW AS 17 TO 23 PERCENT FOR 4 OR
  MORE HOURS.

* WINDS: NORTH TO NORTHWEST AROUND 5 MPH.

* 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.

&&

$$
3 follow-up statements
953 
WWUS84 KMOB 130507 AAA
RFWMOB

URGENT - FIRE WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
1107 PM CST THU FEB 12 2015

...A RED FLAG WARNING NOW IN EFFECT FROM 11 AM TO 5 PM FRIDAY FOR
SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO RELATIVE HUMIDITY VALUES
AT OR BELOW 24 PERCENT FOR 4 MORE OR HOURS...

.SURFACE HIGH PRESSURE BUILDS ACROSS THE CENTRAL GULF COAST ON
FRIDAY AND BRINGS CRITICALLY LOW AFTERNOON HUMIDITY VALUES OVER
THE INTERIOR SOUTHWEST AND SOUTH CENTRAL ALABAMA. OTHER CRITERIA
DO NOT LOOK TO BE MET IN SOUTHEAST MISSISSIPPI OR THE WESTERN
FLORIDA PANHANDLE.

ALZ063-064-132115-
/O.EXA.KMOB.FW.W.0004.150213T1700Z-150213T2300Z/
LOWER MOBILE-LOWER BALDWIN-
1107 PM CST THU FEB 12 2015

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 5 PM CST FRIDAY FOR
SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO RELATIVE HUMIDITY VALUES
AT OR BELOW 24 PERCENT FOR 4 MORE OR HOURS...

* RELATIVE HUMIDITY: FALLING TO AS LOW AS 17 TO 23 PERCENT FOR 4 
  OR MORE HOURS. 

* WINDS: NORTH TO NORTHWEST AROUND 5 MPH.

* 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.

&&

$$

ALZ051>062-132115-
/O.CON.KMOB.FW.W.0004.150213T1700Z-150213T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-
1107 PM CST THU FEB 12 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 5 PM CST
FRIDAY FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO RELATIVE HUMIDITY VALUES
AT OR BELOW 24 PERCENT FOR 4 MORE OR HOURS...

* RELATIVE HUMIDITY: FALLING TO AS LOW AS 17 TO 23 PERCENT FOR 4 
  OR MORE HOURS. 

* WINDS: NORTH TO NORTHWEST AROUND 5 MPH.

* 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.

&&

$$
116 
WWUS84 KMOB 131133
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
533 AM CST FRI FEB 13 2015

...A RED FLAG WARNING NOW IN EFFECT FROM 11 AM TO 5 PM FRIDAY FOR
SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO RELATIVE HUMIDITY
VALUES AT OR BELOW 24 PERCENT FOR 4 MORE OR HOURS...

.SURFACE HIGH PRESSURE BUILDS ACROSS THE CENTRAL GULF COAST ON
FRIDAY AND BRINGS CRITICALLY LOW AFTERNOON HUMIDITY VALUES OVER
THE INTERIOR SOUTHWEST AND SOUTH CENTRAL ALABAMA. OTHER CRITERIA
DO NOT LOOK TO BE MET IN SOUTHEAST MISSISSIPPI OR THE WESTERN
FLORIDA PANHANDLE.

ALZ051>064-132300-
/O.CON.KMOB.FW.W.0004.150213T1700Z-150213T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-
533 AM CST FRI FEB 13 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
5 PM CST THIS AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA
DUE TO RELATIVE HUMIDITY VALUES AT OR BELOW 24 PERCENT FOR 4 MORE
OR HOURS...

* RELATIVE HUMIDITY: FALLING TO AS LOW AS 17 TO 23 PERCENT FOR 4 
  OR MORE HOURS. 

* WINDS: NORTH TO NORTHWEST AROUND 5 MPH.

* 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.

&&

$$
317 
WWUS84 KMOB 132042
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
242 PM CST FRI FEB 13 2015

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM THIS AFTERNOON FOR
SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE A LONG DURATION OF VERY LOW
RELATIVE HUMIDITY VALUES AT OR BELOW 24 PERCENT...

.A VERY DRY AIRMASS IS IN PLACE AS SURFACE HIGH PRESSURE BUILDS
ACROSS THE CENTRAL GULF COAST THIS AFTERNOON. RED FLAG WARNINGS
REMAIN IN EFFECT FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA. OTHER
CRITERIA ARE NOT MET FOR FIRE WEATHER HEADLINES IN SOUTHEAST
MISSISSIPPI OR THE WESTERN FLORIDA PANHANDLE.

ALZ051>064-132300-
/O.CON.KMOB.FW.W.0004.000000T0000Z-150213T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-
242 PM CST FRI FEB 13 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE A 
LONG DURATION OF VERY LOW RELATIVE HUMIDITY VALUES AT OR 
BELOW 24 PERCENT...

* RELATIVE HUMIDITY: FALLING RANGING FROM 17 TO 23 PERCENT.

* WINDS: NORTH TO NORTHWEST AROUND 5 TO 10 MPH.

* 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.

&&

$$

Nearby

Red Flag Warnings in Alabama, 2015Every red flag warning in 2015

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.