Alert archive / Alabama / Special Weather Statements in 2021
Special Weather Statement, NWS Birmingham, AL
NWS Birmingham, AL issued this special weather statement at Aug 9, 2021, 12:25 PM CDT for Clay County, Alabama. It was in force for 35 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
- Aug 9, 2021, 12:25 PM CDT (17:25 UTC)
- Expired
- Aug 9, 2021, 1:00 PM CDT
- In force
- 35 min
- Issued by
- NWS Birmingham, AL
- Hail
- 0.00 in
- Wind
- 40
County Clay County, AL
The radar
The Maxwell AFB radar (KMXX), 55 km from the middle of the area, began a volume at 17:28 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, 5.4 hours before the alert went out and 89 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
- 1644 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 893 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
931
WWUS84 KBMX 091725
SPSBMX
Special Weather Statement
National Weather Service Birmingham AL
1225 PM CDT Mon Aug 9 2021
ALZ028-037-091800-
Tallapoosa AL-Clay AL-
1225 PM CDT Mon Aug 9 2021
...A strong thunderstorm will impact portions of northwestern
Tallapoosa and southeastern Clay Counties through 100 PM CDT...
At 1224 PM CDT, Doppler radar was tracking a strong thunderstorm over
Hillabee Creek, or 7 miles northeast of Alexander City, moving
northeast at 10 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Alexander City, New Site, Goldville, Hillabee Creek, Northern Lake
Martin, Hackneyville and Millerville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3292 8583 3298 8599 3323 8592 3310 8564
TIME...MOT...LOC 1724Z 207DEG 9KT 3302 8588
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
56The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 12:21 PM CDT | Special Weather Statement | BMX | Perry | 24 min |
| Aug 9, 12:42 PM CDT | Special Weather Statement | BMX | Etowah | 33 min |
| Aug 9, 1:13 PM CDT | Special Weather Statement | BMX | Bibb | 32 min |
| Aug 9, 1:49 PM CDT | Special Weather Statement | BMX | Dallas | 41 min |
| Aug 9, 1:51 PM CDT | Special Weather Statement | BMX | Cherokee | 39 min |
| Aug 9, 2:05 PM CDT | Special Weather Statement | BMX | DeKalb | 40 min |
| Aug 9, 2:28 PM CDT | Special Weather Statement | BMX | Randolph | 32 min |
| Aug 9, 2:30 PM CDT | Special Weather Statement | BMX | Cherokee | 30 min |
| Aug 9, 2:49 PM CDT | Special Weather Statement | BMX | Dallas | 41 min |
| Aug 9, 3:02 PM CDT | Special Weather Statement | BMX | Chambers | 28 min |
| Aug 9, 3:48 PM CDT | Special Weather Statement | BMX | Clay | 27 min |
| Aug 9, 3:49 PM CDT | Special Weather Statement | BMX | Chambers | 26 min |
| Aug 9, 4:00 PM CDT | Special Weather Statement | BMX | Talladega | 30 min |
| Aug 9, 4:21 PM CDT | Special Weather Statement | BMX | Talladega | 24 min |
| Aug 9, 4:44 PM CDT | Severe Thunderstorm Warning | BMX | Talladega | 31 min |
| Aug 9, 5:21 PM CDT | Special Weather Statement | BMX | Calhoun | 39 min |
| Aug 9, 5:56 PM CDT | Special Weather Statement | BMX | Elmore | 34 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.