Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 13, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Mar 17, 2021, 10:30 PM CDT for 4 counties in Alabama. It was in force for 75 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
- Mar 17, 2021, 10:30 PM CDT (03:30 UTC)
- Expired
- Mar 17, 2021, 11:45 PM CDT
- In force
- 75 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bullock County, AL, Lee County, AL, Macon County, AL, Tallapoosa County, AL
The radar
The Maxwell AFB radar (KMXX), 12 km from the middle of the area, began a volume at 03:32 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 17, 6:48 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 3.5 hours before the alert went out and 122 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
- 188 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 669 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 336 m²/s²
- 0-3 km storm-relative helicity
- 465 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
112
WUUS54 KBMX 180330
SVRBMX
ALC011-081-087-123-180445-
/O.NEW.KBMX.SV.W.0013.210318T0330Z-210318T0445Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
1030 PM CDT Wed Mar 17 2021
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Western Lee County in east central Alabama...
Bullock County in southeastern Alabama...
Macon County in southeastern Alabama...
Tallapoosa County in east central Alabama...
* Until 1145 PM CDT.
* At 1030 PM CDT, severe thunderstorms were located along a line
extending from Hanover to near Lapine, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Auburn, Alexander City, Tuskegee, Tallassee, Union Springs,
Dadeville, Camp Hill, Notasulga, Midway, Milstead, Jacksons' Gap,
New Site, Shorter, Franklin, Waverly, Goldville, Martin Dam, Lake
Tuskegee, Beans Crossroads and Guerryton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for south central,
southeastern and east central Alabama.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3197 8588 3205 8589 3205 8600 3225 8600
3228 8592 3242 8602 3245 8599 3246 8597
3248 8585 3250 8589 3268 8591 3275 8588
3276 8601 3309 8601 3311 8559 3273 8559
3274 8549 3241 8542 3202 8543 3195 8579
TIME...MOT...LOC 0330Z 263DEG 44KT 3301 8621 3196 8624
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAM4 follow-up statements
608
WWUS54 KBMX 180358
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
1058 PM CDT Wed Mar 17 2021
ALC011-081-087-123-180445-
/O.CON.KBMX.SV.W.0013.000000T0000Z-210318T0445Z/
Lee AL-Bullock AL-Macon AL-Tallapoosa AL-
1058 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR WESTERN LEE...BULLOCK...MACON AND TALLAPOOSA COUNTIES...
At 1058 PM CDT, severe thunderstorms were located along a line
extending from 6 miles west of Goldville to Franklin to near Beans
Crossroads, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Auburn, Alexander City, Tuskegee, Tallassee, Union Springs,
Dadeville, Camp Hill, Notasulga, Midway, Milstead, Jacksons' Gap, New
Site, Shorter, Franklin, Waverly, Goldville, Martin Dam, Lake
Tuskegee, Beans Crossroads and Guerryton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for south central,
southeastern and east central Alabama.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3197 8588 3205 8589 3205 8599 3227 8595
3228 8592 3232 8595 3245 8593 3245 8588
3248 8585 3251 8589 3268 8591 3275 8588
3277 8597 3309 8601 3311 8559 3273 8559
3273 8549 3242 8542 3202 8543 3195 8579
TIME...MOT...LOC 0358Z 260DEG 47KT 3308 8590 3246 8582 3200 8591
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAM146
WWUS54 KBMX 180410
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
1110 PM CDT Wed Mar 17 2021
ALC011-081-087-123-180445-
/O.CON.KBMX.SV.W.0013.000000T0000Z-210318T0445Z/
Lee AL-Bullock AL-Macon AL-Tallapoosa AL-
1110 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR WESTERN LEE...BULLOCK...MACON AND EASTERN TALLAPOOSA COUNTIES...
At 1110 PM CDT, severe thunderstorms were located along a line
extending from near Goldville to near Tuskegee National Forest to
Inverness, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Auburn, Tuskegee, Union Springs, Dadeville, Camp Hill, Notasulga,
Midway, Jacksons' Gap, New Site, Waverly, Goldville, Aberfoil, Lake
Tuskegee, Auburn University, Guerryton, Tuskegee National Forest,
Davisville, Liverpool, Liberty City and Society Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for southeastern
and east central Alabama.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3196 8582 3247 8578 3310 8581 3311 8559
3273 8559 3273 8549 3242 8542 3202 8543
3195 8579
TIME...MOT...LOC 0410Z 263DEG 44KT 3310 8572 3248 8564 3202 8573
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAM049
WWUS54 KBMX 180420
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
1120 PM CDT Wed Mar 17 2021
ALC123-180430-
/O.CAN.KBMX.SV.W.0013.000000T0000Z-210318T0445Z/
Tallapoosa AL-
1120 PM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN TALLAPOOSA COUNTY IS
CANCELLED...
The storms which prompted the warning have weakened. Therefore, the
warning has been cancelled.
A Tornado Watch remains in effect until 300 AM CDT for southeastern
and east central Alabama.
LAT...LON 3248 8563 3273 8561 3273 8549 3242 8542
3241 8543 3202 8543 3195 8577
TIME...MOT...LOC 0420Z 262DEG 44KT 3269 8551 3249 8551 3203 8560
$$
ALC011-081-087-180445-
/O.CON.KBMX.SV.W.0013.000000T0000Z-210318T0445Z/
Lee AL-Bullock AL-Macon AL-
1120 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR WESTERN LEE...EASTERN BULLOCK AND EASTERN MACON COUNTIES...
At 1120 PM CDT, severe thunderstorms were located along a line
extending from near Waverly to near Tuskegee National Forest to near
Pickett, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Auburn, Union Springs, Midway, Waverly, Aberfoil, Auburn University,
Guerryton, Tuskegee National Forest, Davisville, Society Hill,
Loachapoka, Warriorstand, Sedgefield, I 85 Rest Area, Creek Stand,
Three Notch and Chewacla State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for southeastern
and east central Alabama.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3248 8563 3273 8561 3273 8549 3242 8542
3241 8543 3202 8543 3195 8577
TIME...MOT...LOC 0420Z 262DEG 44KT 3269 8551 3249 8551 3203 8560
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAM749
WWUS54 KBMX 180433
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
1133 PM CDT Wed Mar 17 2021
ALC081-180443-
/O.CAN.KBMX.SV.W.0013.000000T0000Z-210318T0445Z/
Lee AL-
1133 PM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LEE COUNTY IS
CANCELLED...
The storms which prompted the warning have weakened. Therefore, the
warning has been cancelled.
A Tornado Watch remains in effect until 300 AM CDT for southeastern
and east central Alabama.
LAT...LON 3242 8553 3250 8550 3250 8544 3202 8543
3201 8546 3202 8547 3201 8547 3201 8551
3200 8551 3200 8557
TIME...MOT...LOC 0433Z 262DEG 44KT 3255 8534 3251 8534 3205 8543
$$
ALC011-087-180445-
/O.CON.KBMX.SV.W.0013.000000T0000Z-210318T0445Z/
Bullock AL-Macon AL-
1133 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR NORTHEASTERN BULLOCK AND SOUTHEASTERN MACON COUNTIES...
At 1133 PM CDT, severe thunderstorms were located along a line
extending from Beauregard to near Griffen Mill to near Comer, moving
east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Midway, Guerryton, Society Hill and Creek Stand.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for southeastern
and east central Alabama.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3242 8553 3250 8550 3250 8544 3202 8543
3201 8546 3202 8547 3201 8547 3201 8551
3200 8551 3200 8557
TIME...MOT...LOC 0433Z 262DEG 44KT 3255 8534 3251 8534 3205 8543
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAMThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:18 PM CDT | Tornado Warning | BMX | Autauga, Dallas | 17 min |
| Mar 17, 7:47 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Lamar, Marion | 58 min |
| Mar 17, 8:01 PM CDT | Tornado Warning | BMX | Greene, Pickens, Sumter | 22 min |
| Mar 17, 8:15 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 39 min |
| Mar 17, 8:32 PM CDT | Tornado Warning | BMX | Autauga, Chilton, Elmore | 19 min |
| Mar 17, 9:06 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo, Tuscaloosa | 33 hr |
| Mar 17, 9:14 PM CDT | River Flood Warning | BMX | Sumter | 37 hr |
| Mar 17, 9:18 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo, Sumter | 72 hr |
| Mar 17, 9:48 PM CDT | Areal Flood Advisory | BMX | Blount | 3 hr |
| Mar 17, 9:51 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Chilton, Coosa, Elmore, Lowndes, Montgomery | 69 min |
| Mar 17, 10:06 PM CDT | Severe Thunderstorm Warning | BMX | St. Clair, Shelby, Talladega | 69 min |
| Mar 17, 10:22 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Cherokee, Etowah, St. Clair | 68 min |
| Mar 17, 10:26 PM CDT | Areal Flood Advisory | BMX | Calhoun, Cherokee, Cleburne, Etowah, St. Clair, Talladega | 3 hr |
| Mar 17, 10:43 PM CDT | Tornado Warning | BMX | Coosa | 6 min |
| Mar 17, 11:34 PM CDT | Special Weather Statement | BMX | Lee, Russell | 41 min |
| Mar 18, 2:46 AM CDT | Special Weather Statement | BMX | Russell | 44 min |
| Mar 18, 3:06 AM CDT | Wind Advisory | BMX | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more | 16 hr |
| Mar 18, 8:31 AM CDT | Areal Flood Warning | BMX | Cherokee | 55 hr |
| Mar 18, 9:50 AM CDT | River Flood Warning | BMX | Jefferson, Tuscaloosa, Walker | 36 hr |
Nearby
Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning 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.