Alert archive / Alabama / Red Flag Warnings in 2012
Red Flag Warning 11, NWS Birmingham, AL
NWS Birmingham, AL issued this red flag warning at Feb 26, 2012, 11:31 AM CST for 23 counties in Alabama. 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
- Feb 26, 2012, 11:31 AM CST (17:31 UTC)
- Expired
- Feb 26, 2012, 5:00 PM CST
- In force
- 5 hr
- Issued by
- NWS Birmingham, AL
All 23 counties
Bibb County, AL, Blount County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Etowah County, AL, Fayette County, AL, Jefferson County, AL, Lamar County, AL, Marion County, AL, Pickens County, AL, Randolph County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL
The radar
The Birmingham radar (KBMX), 41 km from the middle of the area, began a volume at 17:31 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 12:00Z, 5.5 hours before the alert went out and 40 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2670 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
382 WWUS84 KBMX 261731 RFWBMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 1131 AM CST SUN FEB 26 2012 ...DRY CONDITIONS EXPECTED FOR NORTH CENTRAL ALABAMA TODAY... .SURFACE DEW POINTS WILL MIX OUT DRIER ACROSS NORTHERN AREAS THIS AFTERNOON WHILE SOUTHEAST SURFACE FLOW SLOWLY INCREASES THE LOW LEVEL MOISTURE. STILL THINK WE CAN SQUEEZE OUT 4 HOURS OF RELATIVE HUMIDITY VALUES BELOW 25 PERCENT IN NORTHERN AREAS. ALZ011>015-017>029-034>038-262200- /O.NEW.KBMX.FW.W.0011.120226T1731Z-120226T2200Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN- CHEROKEE-CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR- TALLADEGA-CLAY-RANDOLPH-BIBB-CHILTON-COOSA-TALLAPOOSA-CHAMBERS- 1131 AM CST SUN FEB 26 2012 ...RED FLAG WARNING IN EFFECT UNTIL 4 PM CST THIS AFTERNOON FOR DRY CONDITIONS... THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON. * WINDS...SOUTHEAST 5 TO 10 MPH. * RELATIVE HUMIDITY...AS LOW AS 16 TO 18 PERCENT. * IMPACTS...A DRY AIRMASS WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS. 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 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. && $$
2 follow-up statements
038 WWUS84 KBMX 262111 RFWBMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 311 PM CST SUN FEB 26 2012 ...DRY CONDITIONS EXPECTED FOR NORTH CENTRAL ALABAMA TODAY... .SURFACE DEW POINTS WILL MIX OUT DRIER ACROSS NORTHERN AREAS THIS AFTERNOON WHILE SOUTHEAST SURFACE FLOW SLOWLY INCREASES THE LOW LEVEL MOISTURE. STILL THINK WE CAN SQUEEZE OUT 4 HOURS OF RELATIVE HUMIDITY VALUES BELOW 25 PERCENT IN NORTHERN AREAS. ALZ011>015-017>029-034>038-262300- /O.EXT.KBMX.FW.W.0011.000000T0000Z-120226T2300Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN- CHEROKEE-CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR- TALLADEGA-CLAY-RANDOLPH-BIBB-CHILTON-COOSA-TALLAPOOSA-CHAMBERS- 311 PM CST SUN FEB 26 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 5 PM CST THIS AFTERNOON FOR DRY CONDITIONS... THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 5 PM CST THIS AFTERNOON. * WINDS...SOUTHEAST AROUND 5 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...A DRY AIRMASS WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. FOR ADDITIONAL INFORMATION ON THE FIRE CONDITIONS...PLEASE CONTACT THE ALABAMA FORESTRY COMMISSION AT WWW.FORESTRY.ALABAMA.GOV. && $$
225 WWUS84 KBMX 262115 RFWBMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 315 PM CST SUN FEB 26 2012 ...DRY CONDITIONS EXPECTED FOR NORTH CENTRAL ALABAMA TODAY... .SURFACE DEW POINTS WILL MIX OUT DRIER ACROSS NORTHERN AREAS THIS AFTERNOON WHILE SOUTHEAST SURFACE FLOW SLOWLY INCREASES THE LOW LEVEL MOISTURE. STILL THINK WE CAN SQUEEZE OUT 4 HOURS OF RELATIVE HUMIDITY VALUES BELOW 25 PERCENT IN NORTHERN AREAS. ALZ011>015-017>029-034>038-262300- /O.CON.KBMX.FW.W.0011.000000T0000Z-120226T2300Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN- CHEROKEE-CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR- TALLADEGA-CLAY-RANDOLPH-BIBB-CHILTON-COOSA-TALLAPOOSA-CHAMBERS- 315 PM CST SUN FEB 26 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON FOR DRY CONDITIONS... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON. * WINDS...SOUTHEAST AROUND 5 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * IMPACTS...A DRY AIRMASS WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS. 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 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, 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.