Alert archive / Alabama / Special Weather Statements in 2021
Special Weather Statement, NWS Birmingham, AL
NWS Birmingham, AL issued this special weather statement at Sep 1, 2021, 2:08 PM CDT for Tuscaloosa County, Alabama. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 1, 2021, 2:08 PM CDT (19:08 UTC)
- Expired
- Sep 1, 2021, 3:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Birmingham, AL
- Hail
- 0.00 in
- Wind
- 50
County Tuscaloosa County, AL
The radar
The Birmingham radar (KBMX), 60 km from the middle of the area, began a volume at 19:12 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, 7.1 hours before the alert went out and 59 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
- 170 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 990 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
442
WWUS84 KBMX 011908
SPSBMX
Special Weather Statement
National Weather Service Birmingham AL
208 PM CDT Wed Sep 1 2021
ALZ022>025-031-034-012000-
Greene AL-Pickens AL-Bibb AL-Jefferson AL-Shelby AL-Tuscaloosa AL-
208 PM CDT Wed Sep 1 2021
...Strong thunderstorms will impact portions of southern Tuscaloosa,
east central Pickens, southwestern Shelby, northeastern Greene,
northern Bibb and southern Jefferson Counties through 300 PM CDT...
At 207 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Sylvan Springs to near Tannehill Ironworks
State Park to Deerlick Creek Campgrounds to near Coker. Movement was
southeast at 30 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Birmingham, Tuscaloosa, Hoover, Vestavia Hills, Alabaster, Bessemer,
Homewood, Northport, Pelham, Mountain Brook, Helena, Hueytown,
Irondale, Fairfield, Montevallo, Holt, Pleasant Grove, Midfield,
Adamsville and Brighton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3330 8750 3337 8710 3358 8707 3352 8669
3309 8686 3303 8720 3300 8746 3301 8771
3300 8771 3297 8775 3295 8793 3328 8796
TIME...MOT...LOC 1907Z 322DEG 25KT 3351 8702 3331 8704 3324 8744 3320
8777
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
$$
61The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 8:03 AM CDT | Areal Flood Warning | BMX | Cherokee | 14 hr |
| Sep 1, 1:05 PM CDT | Special Weather Statement | BMX | Lamar | 40 min |
| Sep 1, 1:32 PM CDT | Special Weather Statement | BMX | Tuscaloosa | 43 min |
| Sep 1, 2:33 PM CDT | Special Weather Statement | BMX | Bibb, Chilton | 42 min |
| Sep 1, 2:47 PM CDT | Special Weather Statement | BMX | Hale | 58 min |
| Sep 1, 3:12 PM CDT | Special Weather Statement | BMX | Chilton | 48 min |
| Sep 1, 3:15 PM CDT | Special Weather Statement | BMX | Greene | 45 min |
| Sep 1, 3:48 PM CDT | Special Weather Statement | BMX | Autauga, Dallas, Perry | 42 min |
| Sep 1, 4:02 PM CDT | Special Weather Statement | BMX | Sumter | 43 min |
| Sep 1, 4:15 PM CDT | Special Weather Statement | BMX | Elmore | 45 min |
| Sep 1, 4:18 PM CDT | Special Weather Statement | BMX | Pickens | 27 min |
| Sep 1, 4:31 PM CDT | Special Weather Statement | BMX | Lowndes, Montgomery | 44 min |
| Sep 1, 4:48 PM CDT | Special Weather Statement | BMX | Marengo, Sumter | 42 min |
| Sep 1, 4:53 PM CDT | Special Weather Statement | BMX | Blount | 52 min |
| Sep 1, 5:00 PM CDT | Special Weather Statement | BMX | Bullock, Macon | 60 min |
| Sep 1, 5:27 PM CDT | Special Weather Statement | BMX | Marengo | 33 min |
| Sep 1, 6:00 PM CDT | Special Weather Statement | BMX | Barbour, Bullock | 60 min |
| Sep 1, 6:20 PM CDT | Special Weather Statement | BMX | Jefferson | 40 min |
Nearby
Special Weather Statements in Alabama, 2021Every special weather statement in 2021
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.