Alert archive / Alabama / Red Flag Warnings in 2015

Red Flag Warning 10, NWS Mobile, AL

October 17, 201512 counties in Alabama

NWS Mobile, AL issued this red flag warning at Oct 17, 2015, 4:12 AM CDT for 12 counties in Alabama. It took effect at Oct 17, 2015, 11:00 AM 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
Oct 17, 2015, 4:12 AM CDT (09:12 UTC)
In effect from
Oct 17, 2015, 11:00 AM CDT
Expired
Oct 17, 2015, 6:00 PM CDT
In force
7 hr
Issued by
NWS Mobile, AL

Counties Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL

The radar

The Mobile radar (KMOB), 118 km from the middle of the area, began a volume at 09:14 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, 9.2 hours before the alert went out and 201 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 2015-10-17Temperature 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 2015-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2920 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
43 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.

679 
WWUS84 KMOB 170912
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
412 AM CDT SAT OCT 17 2015

...DANGEROUS FIRE WEATHER CONDITIONS ACROSS SOUTHEAST MISSISSIPPI
AND MUCH OF SOUTHWEST AND SOUTH CENTRAL ALABAMA...

.VERY LOW RELATIVE HUMIDITY VALUES COMBINED WITH INCREASED NORTHERLY
WINDS AND DRY VEGETATION WILL CREATE FAVORABLE CONDITIONS FOR RAPID
FIRE GROWTH AND SPREAD ACROSS SOUTHEAST MISSISSIPPI THIS WEEKEND AND
MUCH OF SOUTHWEST AND SOUTH CENTRAL ALABAMA TODAY.

ALZ051>060-261-262-172300-
/O.NEW.KMOB.FW.W.0010.151017T1600Z-151017T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-MOBILE INLAND-BALDWIN INLAND-
412 AM CDT SAT OCT 17 2015

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CDT
THIS EVENING FOR MUCH OF SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO
LONG DURATION LOW RELATIVE HUMIDITY...BREEZY NORTHERLY WINDS AND DRY
FUELS...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CDT
THIS EVENING. 

* AFFECTED AREA...FIRE WEATHER ZONES 051...052...053...054... 
  055...056...057...058...059...060...261 AND 262. 

* RELATIVE HUMIDITY: FALLING TO AS LOW AS 18 TO 23 PERCENT FOR 4 TO 6
  HOURS. 

* WINDS: NORTH 10 TO 15 MPH WITH GUSTS AROUND 20 MPH. 

* DISPERSIONS: HIGH DISPERSION INDICES WITH NUMERICAL VALUES OVER 75.

* 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...INCREASED WINDS AND DRY FUELS CAN CONTRIBUTE TO
EXTREME FIRE BEHAVIOR.

&&

$$

MSZ067-075-076-078-079-172300-
/O.CON.KMOB.FW.A.0007.000000T0000Z-151019T0000Z/
WAYNE-PERRY-GREENE-STONE-GEORGE-
412 AM CDT SAT OCT 17 2015

...FIRE WEATHER WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING
FOR SOUTHEAST MISSISSIPPI DUE TO UNUSUALLY DRY CONDITIONS COUPLED
WITH LOW RELATIVE HUMIDITY VALUES AND INCREASED NORTHERLY WINDS...

* AFFECTED AREA...FIRE WEATHER ZONES 067...075...076...078 AND 
  079. 

* WIND...NORTH TO NORTHEAST 10 TO 15 MPH WITH GUSTS TO 20 MPH.

* HUMIDITY...FALLING TO AS LOW AS 18 TO 23 PERCENT.

* DISPERSION...HIGH DISPERSION INDICES TODAY WITH NUMERICAL VALUES
  OVER 75.

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

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
011 
WWUS84 KMOB 171942
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
242 PM CDT SAT OCT 17 2015

...DANGEROUS FIRE WEATHER CONDITIONS ACROSS SOUTHEAST MISSISSIPPI
AND MUCH OF SOUTHWEST AND SOUTH CENTRAL ALABAMA...

.VERY LOW RELATIVE HUMIDITY VALUES COMBINED WITH INCREASED
NORTHERLY WINDS AND DRY VEGETATION WILL CREATE FAVORABLE
CONDITIONS FOR RAPID FIRE GROWTH AND SPREAD ACROSS SOUTHEAST
MISSISSIPPI THIS WEEKEND AND MUCH OF SOUTHWEST AND SOUTH CENTRAL
ALABAMA TODAY.

ALZ051>060-261-262-172300-
/O.CON.KMOB.FW.W.0010.000000T0000Z-151017T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-MOBILE INLAND-BALDWIN INLAND-
242 PM CDT SAT OCT 17 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING
FOR MUCH OF SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO LONG
DURATION LOW RELATIVE HUMIDITY...BREEZY NORTHERLY WINDS AND DRY
FUELS...

* AFFECTED AREA...FIRE WEATHER ZONES 051...052...053...054... 
  055...056...057...058...059...060...261 AND 262. 

* RELATIVE HUMIDITY: FALLING TO AS LOW AS 18 TO 23 PERCENT FOR 4 
  TO 6 HOURS. 

* WINDS: NORTH 10 TO 15 MPH WITH GUSTS AROUND 20 MPH.

* DISPERSIONS: HIGH DISPERSION INDICES WITH NUMERICAL VALUES 
  OVER 75.

* 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...INCREASED WINDS AND DRY FUELS CAN CONTRIBUTE
TO EXTREME FIRE BEHAVIOR.

&&

$$

MSZ067-075-076-078-079-181230-
/O.CON.KMOB.FW.A.0007.000000T0000Z-151019T0000Z/
WAYNE-PERRY-GREENE-STONE-GEORGE-
242 PM CDT SAT OCT 17 2015

...FIRE WEATHER WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING
FOR SOUTHEAST MISSISSIPPI DUE TO UNUSUALLY DRY CONDITIONS COUPLED
WITH LOW RELATIVE HUMIDITY VALUES AND INCREASED NORTHERLY WINDS...

* AFFECTED AREA...FIRE WEATHER ZONES 067...075...076...078 AND 
  079. 

* WIND...NORTH TO NORTHEAST 10 TO 15 MPH WITH GUSTS TO 20 MPH.

* HUMIDITY...FALLING TO AS LOW AS 18 TO 23 PERCENT.

* DISPERSION...HIGH DISPERSION INDICES TODAY WITH NUMERICAL
  VALUES OVER 75. 

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

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.

&&

$$
550 
WWUS84 KMOB 172253
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
553 PM CDT SAT OCT 17 2015

...DANGEROUS FIRE WEATHER CONDITIONS TO CONTINUE ACROSS SOUTHEAST
MISSISSIPPI...

.VERY LOW RELATIVE HUMIDITY VALUES COMBINED WITH INCREASED
NORTHERLY WINDS AND DRY VEGETATION WILL CREATE FAVORABLE
CONDITIONS FOR RAPID FIRE GROWTH AND SPREAD ACROSS SOUTHEAST
MISSISSIPPI THIS WEEKEND.

ALZ051>060-261-262-180000-
/O.EXP.KMOB.FW.W.0010.000000T0000Z-151017T2300Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-MOBILE INLAND-BALDWIN INLAND-
553 PM CDT SAT OCT 17 2015

...RED FLAG WARNING WILL EXPIRE AT 6 PM CDT THIS EVENING FOR THE
INTERIOR OF SOUTHWEST AND SOUTH CENTRAL ALABAMA AS TEMPERATURES COOL
AND HUMIDITY LIFTS TO ABOVE CRITICAL LEVELS...

WITH THE ONSET OF COOLING TEMPERATURES HEADING INTO THE
EVENING...HUMIDITY BEGINS TO MODIFY TO ABOVE CRITICAL LEVELS.

$$

MSZ067-075-076-078-079-181500-
/O.CON.KMOB.FW.A.0007.000000T0000Z-151019T0000Z/
WAYNE-PERRY-GREENE-STONE-GEORGE-
553 PM CDT SAT OCT 17 2015

...FIRE WEATHER WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING
FOR SOUTHEAST MISSISSIPPI DUE TO UNUSUALLY DRY CONDITIONS COUPLED
WITH LOW RELATIVE HUMIDITY VALUES AND MODERATE NORTH TO NORTHEAST
WINDS...

* AFFECTED AREA...FIRE WEATHER ZONES 067...075...076...078 AND 
  079. 

* WIND...NORTH TO NORTHEAST 10 TO 15 MPH WITH GUSTS TO 20 MPH.

* HUMIDITY...FALLING TO AS LOW AS 18 TO 23 PERCENT.

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

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.

&&

$$

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.