Alert archive / Alabama / Wind Advisories in 2021
Wind Advisory 1, NWS Birmingham, AL
NWS Birmingham, AL issued this wind advisory at Jan 30, 2021, 12:54 PM CST for 17 counties in Alabama. It took effect at Jan 30, 2021, 6:00 PM CST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jan 30, 2021, 12:54 PM CST (18:54 UTC)
- In effect from
- Jan 30, 2021, 6:00 PM CST
- Expired
- Jan 31, 2021, 3:00 AM CST
- In force
- 9 hr
- Issued by
- NWS Birmingham, AL
Counties Blount County, AL, Calhoun County, AL, Cherokee County, AL, Clay County, AL, Cleburne County, AL, Etowah County, AL, Fayette County, AL, Jefferson County, AL, Lamar County, AL, Marion County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL
The radar
The Birmingham radar (KBMX), 59 km from the middle of the area, began a volume at 18:53 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, 6.9 hours before the alert went out and 58 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
- 2355 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
354 WWUS74 KBMX 301854 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 1254 PM CST Sat Jan 30 2021 ALZ011>015-017>021-024>028-310300- /O.NEW.KBMX.WI.Y.0001.210131T0000Z-210131T0900Z/ Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun- Cherokee-Cleburne-Jefferson-Shelby-St. Clair-Talladega-Clay- Including the cities of Hamilton, Sulligent, Vernon, Fayette, Double Springs, Jasper, Oneonta, Gadsden, Anniston, Centre, Heflin, Birmingham, Hoover, Columbiana, Pelham, Alabaster, Pell City, Moody, Talladega, Sylacauga, and Ashland 1254 PM CST Sat Jan 30 2021 ...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 3 AM CST SUNDAY... * WHAT...South winds 15 to 20 mph with gusts up to 35 mph expected. * WHERE...Portions of north central Alabama, generally north of I-20 and primarily in higher elevations. * WHEN...From 6 PM CST this evening to 3 AM CST Sunday. * 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. && $$
1 follow-up statement
303 WWUS74 KBMX 302304 NPWBMX URGENT - WEATHER MESSAGE National Weather Service Birmingham AL 504 PM CST Sat Jan 30 2021 ALZ022-023-310900- /O.EXA.KBMX.WI.Y.0001.210131T0000Z-210131T0900Z/ Pickens-Tuscaloosa- Including the cities of Carrollton and Tuscaloosa 504 PM CST Sat Jan 30 2021 ...WIND ADVISORY IN EFFECT UNTIL 3 AM CST SUNDAY... * WHAT...South winds 15 to 20 mph with gusts up to 35 mph expected. * WHERE...Pickens and Tuscaloosa Counties. * WHEN...From 6 PM CST this evening to 3 AM CST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ALZ011>015-017>021-024>028-310900- /O.CON.KBMX.WI.Y.0001.210131T0000Z-210131T0900Z/ Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun- Cherokee-Cleburne-Jefferson-Shelby-St. Clair-Talladega-Clay- Including the cities of Hamilton, Sulligent, Vernon, Fayette, Double Springs, Jasper, Oneonta, Gadsden, Anniston, Centre, Heflin, Birmingham, Hoover, Columbiana, Pelham, Alabaster, Pell City, Moody, Talladega, Sylacauga, and Ashland 504 PM CST Sat Jan 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST SUNDAY... * WHAT...South winds 15 to 20 mph with gusts around 35 to 40 mph expected. * WHERE...Portions of north central Alabama, generally north of I- 20 and primarily in higher elevations. * WHEN...From 6 PM CST this evening to 3 AM CST Sunday. * 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.