Alert archive / Alabama / Wind Advisories in 2021
Wind Advisory 9, NWS Birmingham, AL
NWS Birmingham, AL issued this wind advisory at Aug 29, 2021, 4:21 PM CDT for 39 counties in Alabama. It took effect at Aug 30, 2021, 10:00 AM CDT. It was in force for 26 hr.
The area
The counties it named.
The facts
- Issued
- Aug 29, 2021, 4:21 PM CDT (21:21 UTC)
- In effect from
- Aug 30, 2021, 10:00 AM CDT
- Expired
- Aug 31, 2021, 12:26 PM CDT
- In force
- 26 hr
- Issued by
- NWS Birmingham, AL
All 39 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, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Marion 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, Walker County, AL, Winston County, AL
The radar
The Birmingham radar (KBMX), 22 km from the middle of the area, began a volume at 21:21 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, 9.4 hours before the alert went out and 23 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
- 1210 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 545 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
929 WWUS74 KBMX 292121 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 421 PM CDT Sun Aug 29 2021 ALZ011>015-017>050-301200- /O.NEW.KBMX.WI.Y.0009.210830T1500Z-210901T0000Z/ Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun- Cherokee-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 Hamilton, Sulligent, Vernon, Fayette, Double Springs, Jasper, Oneonta, Gadsden, Anniston, Centre, 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 421 PM CDT Sun Aug 29 2021 ...WIND ADVISORY IN EFFECT FROM 10 AM MONDAY TO 7 PM CDT TUESDAY... * WHAT...South winds 10 to 20 mph with gusts up to 40 mph expected. * WHERE...Portions of central, east central, northeast, northwest, southeast and west central Alabama. * WHEN...From 10 AM Monday to 7 PM CDT Tuesday. * 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. && $$
4 follow-up statements
997 WWUS74 KBMX 300830 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 330 AM CDT Mon Aug 30 2021 ALZ011>015-017>050-302100- /O.CON.KBMX.WI.Y.0009.210830T1500Z-210901T0000Z/ Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun- Cherokee-Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair- Talladega-Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton- Coosa-Tallapoosa-Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore- Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour- Including the cities of Hamilton, Sulligent, Vernon, Fayette, Double Springs, Jasper, Oneonta, Gadsden, Anniston, Centre, Heflin, Carrollton, Tuscaloosa, Birmingham, Hoover, Columbiana, Pelham, Alabaster, Pell City, Moody, Talladega, Sylacauga, Ashland, Roanoke, Livingston, Eutaw, Greensboro, Moundville, Marion, Centreville, Clanton, Rockford, Alexander City, Dadeville, Valley, Lanett, Lafayette, Demopolis, Linden, Selma, Prattville, Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery, Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy, and Eufaula 330 AM CDT Mon Aug 30 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT TUESDAY... * WHAT...South winds 10 to 20 mph with gusts up to 40 mph expected due to Tropical Storm Ida. * WHERE...All of Central Alabama. * WHEN...From 10 AM Monday to 7 PM CDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Sporadic trees will be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
831 WWUS74 KBMX 302020 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 320 PM CDT Mon Aug 30 2021 ALZ011>015-017>050-310700- /O.CON.KBMX.WI.Y.0009.000000T0000Z-210901T0000Z/ Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun- Cherokee-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 Hamilton, Sulligent, Vernon, Fayette, Double Springs, Jasper, Oneonta, Gadsden, Anniston, Centre, 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 320 PM CDT Mon Aug 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY... * WHAT...South winds 10 to 20 mph with gusts up to 40 mph, especially on ridgetops. * WHERE...All of Central Alabama. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Sporadic trees will 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. && $$
896 WWUS74 KBMX 310410 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 1110 PM CDT Mon Aug 30 2021 ALZ011>015-017>050-311700- /O.CON.KBMX.WI.Y.0009.000000T0000Z-210901T0000Z/ Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun- Cherokee-Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair- Talladega-Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton- Coosa-Tallapoosa-Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore- Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour- Including the cities of Hamilton, Sulligent, Vernon, Fayette, Double Springs, Jasper, Oneonta, Gadsden, Anniston, Centre, Heflin, Carrollton, Tuscaloosa, Birmingham, Hoover, Columbiana, Pelham, Alabaster, Pell City, Moody, Talladega, Sylacauga, Ashland, Roanoke, Livingston, Eutaw, Greensboro, Moundville, Marion, Centreville, Clanton, Rockford, Alexander City, Dadeville, Valley, Lanett, Lafayette, Demopolis, Linden, Selma, Prattville, Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery, Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy, and Eufaula 1110 PM CDT Mon Aug 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY... * WHAT...South winds 10 to 20 mph with gusts up to 40 mph, especially on ridgetops. * WHERE...All of Central Alabama. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Sporadic trees will be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
607 WWUS74 KBMX 311726 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 1226 PM CDT Tue Aug 31 2021 ALZ011>015-017>050-311830- /O.CAN.KBMX.WI.Y.0009.000000T0000Z-210901T0000Z/ Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun- Cherokee-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 Hamilton, Sulligent, Vernon, Fayette, Double Springs, Jasper, Oneonta, Gadsden, Anniston, Centre, 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 1226 PM CDT Tue Aug 31 2021 ...WIND ADVISORY IS CANCELLED... Gusty winds associated with Tropical Cyclone Ida have weakened. $$
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 3:20 AM CDT | Flash Flood Watch | BMX | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more | 56 hr |
| Aug 29, 10:09 AM CDT | River Flood Warning | BMX | Greene, Pickens, Sumter | 4 days |
| Aug 29, 10:11 AM CDT | River Flood Warning | BMX | Sumter | 3 days |
| Aug 29, 1:28 PM CDT | Special Weather Statement | BMX | Montgomery | 32 min |
| Aug 29, 1:59 PM CDT | Special Weather Statement | BMX | Autauga | 31 min |
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.