Alert archive / Alabama / Red Flag Warnings in 2009

Red Flag Warning 13, NWS Birmingham, AL

March 4, 200925 counties in Alabama

NWS Birmingham, AL issued this red flag warning at Mar 4, 2009, 4:02 AM CST for 25 counties in Alabama. It took effect at Mar 4, 2009, 12:00 PM 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: Mar 4, 2009, 4:02 AM CST (10:02 UTC)
In effect from: Mar 4, 2009, 12:00 PM CST
Expired: Mar 4, 2009, 6:00 PM CST
In force: 6 hr
Issued by: NWS Birmingham, AL

All 25 counties

Autauga County, AL, Barbour County, AL, Blount County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Elmore County, AL, Etowah County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 10.0 hours before the alert went out and 76 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3185 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 97 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.

000 
WWUS84 KBMX 041002
RFWBMX

RED FLAG WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
402 AM CST WED MAR 4 2009

...DRY CONDITIONS EXPECTED AGAIN TODAY...

.DRY CONDITIONS ARE EXPECTED TO CONTINUE THIS AFTERNOON BUT
SOME RELIEF IS EXPECTED WEST. 

ALZ017>021-024>029-035>038-041>050-041830-
/O.UPG.KBMX.FW.A.0009.090304T1800Z-090305T0000Z/
/O.NEW.KBMX.FW.W.0013.090304T1800Z-090305T0000Z/
BLOUNT-ETOWAH-CALHOUN-CHEROKEE-CLEBURNE-JEFFERSON-SHELBY-
ST. CLAIR-TALLADEGA-CLAY-RANDOLPH-CHILTON-COOSA-TALLAPOOSA-
CHAMBERS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY-MACON-BULLOCK-LEE-
RUSSELL-PIKE-BARBOUR-
402 AM CST WED MAR 4 2009

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CST THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM CST THIS
AFTERNOON. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

RELATIVE HUMIDITY ARE EXPECTED AT 25 PERCENT OF LESS FOR ALL OF
CENTRAL ALABAMA THIS AFTERNOON. BUT AREAS ALONG AND EAST OF INTERSTATE
65 WILL EXPERIENCE THE LOWER HUMIDITY FOR 4 OR MORE HOURS.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. 

FOR ADDITIONAL INFORMATION ON THE FIRE CONDITIONS...PLEASE
CONTACT THE ALABAMA FORESTRY COMMISSION AT
WWW.FORESTRY.ALABAMA.GOV.

$$

Nearby

Red Flag Warnings in Alabama, 2009 Every red flag warning in 2009

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.