Alert archive / Alabama / Wind Advisories in 2021
Wind Advisory 3, NWS Birmingham, AL
NWS Birmingham, AL issued this wind advisory at Mar 23, 2021, 4:56 PM CDT for 34 counties in Alabama. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Mar 23, 2021, 4:56 PM CDT (21:56 UTC)
- Expired
- Mar 24, 2021, 12:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Birmingham, AL
All 34 counties
Autauga County, AL, Barbour County, AL, Bibb 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, Dallas County, AL, Elmore County, AL, Etowah County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Montgomery County, AL, Perry County, AL, Pickens County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL
The radar
The Birmingham radar (KBMX), 42 km from the middle of the area, began a volume at 22:00 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, 9.9 hours before the alert went out and 44 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
- 1087 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 286 m²/s²
- 0-3 km storm-relative helicity
- 413 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
713 WWUS74 KBMX 232156 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 456 PM CDT Tue Mar 23 2021 ALZ019-021>050-240500- /O.NEW.KBMX.WI.Y.0003.210323T2200Z-210324T0500Z/ Calhoun-Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair- Talladega-Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton- Coosa-Tallapoosa-Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore- Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour- Including the cities of Anniston, Heflin, Carrollton, Tuscaloosa, Birmingham, Hoover, Columbiana, Pelham, Alabaster, Pell City, Moody, Talladega, Sylacauga, Ashland, Roanoke, Livingston, Eutaw, Greensboro, Moundville, Marion, Centreville, Clanton, Rockford, Alexander City, Dadeville, Valley, Lanett, Lafayette, Demopolis, Linden, Selma, Prattville, Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery, Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy, and Eufaula 456 PM CDT Tue Mar 23 2021 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... * WHAT...Southeast winds may gust up to 40 mph at times. * WHERE...Portions of Central Alabama, generally along and south of Interstate 20. * WHEN...Until midnight CDT tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
1 follow-up statement
113 WWUS74 KBMX 240102 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 802 PM CDT Tue Mar 23 2021 ALZ022>025-030>034-240215- /O.CAN.KBMX.WI.Y.0003.000000T0000Z-210324T0500Z/ Pickens-Tuscaloosa-Jefferson-Shelby-Sumter-Greene-Hale-Perry-Bibb- Including the cities of Carrollton, Tuscaloosa, Birmingham, Hoover, Columbiana, Pelham, Alabaster, Livingston, Eutaw, Greensboro, Moundville, Marion, and Centreville 802 PM CDT Tue Mar 23 2021 ...WIND ADVISORY IS CANCELLED... The threat of higher wind gusts has ended. $$ ALZ017-018-020-240500- /O.EXA.KBMX.WI.Y.0003.000000T0000Z-210324T0500Z/ Blount-Etowah-Cherokee- Including the cities of Oneonta, Gadsden, and Centre 802 PM CDT Tue Mar 23 2021 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... * WHAT...Southeast winds may gust up to 40 mph at times. * WHERE...Blount, Etowah and Cherokee Counties. * WHEN...Until midnight CDT tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ALZ019-021-026>029-035>050-240500- /O.CON.KBMX.WI.Y.0003.000000T0000Z-210324T0500Z/ Calhoun-Cleburne-St. Clair-Talladega-Clay-Randolph-Chilton-Coosa- Tallapoosa-Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore- Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour- Including the cities of Anniston, Heflin, Pell City, Moody, Talladega, Sylacauga, Ashland, Roanoke, Clanton, Rockford, Alexander City, Dadeville, Valley, Lanett, Lafayette, Demopolis, Linden, Selma, Prattville, Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery, Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy, and Eufaula 802 PM CDT Tue Mar 23 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... * WHAT...Southeast winds may gust up to 40 mph at times. * WHERE...Portions of Central Alabama, generally along and south of Interstate 59. * WHEN...Until midnight CDT tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
Nearby
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.