Alert archive / Alabama / Red Flag Warnings in 2012

Red Flag Warning 19, NWS Mobile, AL

April 24, 2012Conecuh County, Covington County, Escambia County, Alabama

NWS Mobile, AL issued this red flag warning at Apr 24, 2012, 4:59 AM CDT for Conecuh County, Covington County, Escambia County, Alabama. It took effect at Apr 24, 2012, 12:00 PM CDT. 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
Apr 24, 2012, 4:59 AM CDT (09:59 UTC)
In effect from
Apr 24, 2012, 12:00 PM CDT
Expired
Apr 24, 2012, 6:00 PM CDT
In force
6 hr
Issued by
NWS Mobile, AL

Counties Conecuh County, AL, Covington County, AL, Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 119 km from the middle of the area, began a volume at 09:56 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, 10.0 hours before the alert went out and 213 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 2012-04-24Temperature 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 2012-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897117Sfc1 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
2753 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
66 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.

303 
WWUS84 KMOB 240959
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
459 AM CDT TUE APR 24 2012

...RED FLAG WARNING HAS BEEN ISSUED FOR THE NORTHWEST FLORIDA
PANHANDLE FROM NOON TO 6 PM CDT FOR A LONG DURATION OF CRITICALLY LOW
HUMIDITY BELOW 35 PERCENT AND HIGH DISPERSION...

...A RED FLAG WARNING HAS BEEN ISSUED FOR PORTIONS OF SOUTHWEST
ALABAMA FROM NOON TO 6 PM CDT FOR A LONG DURATION OF CRITICALLY LOW
HUMIDITY LESS THAN 25 PERCENT...

.DRY HIGH PRESSURE BUILDS EASTWARD ACROSS THE CENTRAL GULF TODAY...
BRINGING AN ELEVATED RISK OF WILDFIRE TO THE REGION.

ALZ056-059-060-FLZ001>006-241800-
/O.NEW.KMOB.FW.W.0019.120424T1700Z-120424T2300Z/
CONECUH-ESCAMBIA-COVINGTON-INLAND ESCAMBIA-COASTAL ESCAMBIA-
INLAND SANTA ROSA-COASTAL SANTA ROSA-INLAND OKALOOSA-
COASTAL OKALOOSA-
459 AM CDT TUE APR 24 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS
EVENING FOR A LONG DURATION OF CRITICALLY LOW HUMIDITY AND 
HIGH DISPERSION FOR FIRE WEATHER ZONES 001...002...003...004...
005...006...056...059 AND 060...

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

* AFFECTED AREA...FIRE WEATHER ZONES 056...059 AND 060. FIRE 
  WEATHER ZONES 001...002...003...004...005 AND 006. 

* WIND...SOUTHWEST WINDS 10 TO 15 KNOTS IN THE AFTERNOON WITH MIXED
  LAYER DISPERSION INDICES 75 TO 85.

* HUMIDITY...LOWERING TO AROUND 25 PERCENT NORTH OF THE COAST.
  LOWERING TO BETWEEN 30 AND 35 PERCENT CLOSER TO THE FLORIDA COAST.

* 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 WILL CREATE RAPID FIRE GROWTH
POTENTIAL.

&&

$$
1 follow-up statement
347 
WWUS84 KMOB 241910
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
210 PM CDT TUE APR 24 2012

...RED FLAG WARNING HAS BEEN ISSUED FOR THE NORTHWEST FLORIDA
PANHANDLE FROM NOON TO 6 PM CDT FOR A LONG DURATION OF CRITICALLY
LOW HUMIDITY BELOW 35 PERCENT AND HIGH DISPERSION...

...A RED FLAG WARNING HAS BEEN ISSUED FOR PORTIONS OF SOUTHWEST
ALABAMA FROM NOON TO 6 PM CDT FOR A LONG DURATION OF CRITICALLY
LOW HUMIDITY LESS THAN 25 PERCENT...

.DRY HIGH PRESSURE BUILDS EASTWARD ACROSS THE CENTRAL GULF
TODAY... BRINGING AN ELEVATED RISK OF WILDFIRE TO THE REGION.

ALZ056-059-060-FLZ001>006-242300-
/O.CON.KMOB.FW.W.0019.000000T0000Z-120424T2300Z/
CONECUH-ESCAMBIA-COVINGTON-INLAND ESCAMBIA-COASTAL ESCAMBIA-
INLAND SANTA ROSA-COASTAL SANTA ROSA-INLAND OKALOOSA-
COASTAL OKALOOSA-
210 PM CDT TUE APR 24 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING
FOR THE NORTHWEST FLORIDA PANHANDLE FROM NOON TO 6 PM CDT FOR LONG 
DURATION OF HUMIDITY BELOW 35 PERCENT AND HIGH DISPERSION....

* AFFECTED AREA...FIRE WEATHER ZONES 056...059 AND 060. FIRE 
  WEATHER ZONES 001...002...003...004...005 AND 006. 

* WIND...SOUTHWEST WINDS 10 TO 15 KNOTS IN THE AFTERNOON WITH
  MIXED LAYER DISPERSION INDICES 75 TO 85. 

* HUMIDITY...LOWERING TO AROUND 25 PERCENT NORTH OF THE COAST. 
  LOWERING TO BETWEEN 30 AND 35 PERCENT CLOSER TO THE FLORIDA
  COAST.

* 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 WILL CREATE RAPID FIRE GROWTH
POTENTIAL.

&&

$$

Nearby

Red Flag Warnings in Alabama, 2012Red Flag Warnings in Florida, 2012Every red flag warning in 2012

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.