Alert archive / Alabama / Red Flag Warnings in 2012

Red Flag Warning 3, NWS Mobile, AL

January 4, 20126 counties in Alabama

NWS Mobile, AL issued this red flag warning at Jan 4, 2012, 5:56 AM CST for 6 counties in Alabama. It took effect at Jan 4, 2012, 11:00 AM CST. It was in force for 5 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 4, 2012, 5:56 AM CST (11:56 UTC)
In effect from
Jan 4, 2012, 11:00 AM CST
Expired
Jan 4, 2012, 4:00 PM CST
In force
5 hr
Issued by
NWS Mobile, AL

Counties Butler County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Monroe County, AL, Wilcox County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 11.9 hours before the alert went out and 174 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 2012-01-04Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2012-01-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
2507 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
89 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.

404 
WWUS84 KMOB 041156
RFWMOB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
556 AM CST WED JAN 4 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 4 PM CST
THIS AFTERNOON FOR SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION OF
VERY LOW RELATIVE HUMIDITY...

.RED FLAG WARNING CRITERIA SHOULD OCCUR FOR SOUTH CENTRAL ALABAMA
FOR ANOTHER DAY DUE TO A COMBINATION OF A VERY DRY AIRMASS ALREADY IN
PLACE ACROSS THE AREA AND WARMING TEMPERATURES THIS MORNING. A LARGE
HIGH PRESSURE SYSTEM BEING MORE TO THE EAST THE LATTER HALF OF THE
WEEK FAVORS A MODERATING TREND IN DAYTIME TEMPERATURES AND HUMIDITY
LEVELS.

ALZ054>058-060-042200-
/O.NEW.KMOB.FW.W.0003.120104T1700Z-120104T2200Z/
WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-COVINGTON-
556 AM CST WED JAN 4 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 4 PM CST
THIS AFTERNOON FOR SOUTH CENTRAL ALABAMA DUE TO A LONG DURATION OF
VERY LOW RELATIVE HUMIDITY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 4 PM CST THIS
AFTERNOON.

* AFFECTED AREA...FIRE WEATHER ZONES 054...055...056...057... 
  058 AND 060. 

* WIND...SOUTH WINDS 5 TO 8 MPH BECOMING SOUTHWEST.

* HUMIDITY...20 TO 23 PERCENT.

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

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.

&&

$$

Nearby

Red Flag Warnings in Alabama, 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.