Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 10, NWS Birmingham, AL

March 17, 20216 counties in Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 17, 2021, 9:51 PM CDT for 6 counties in Alabama. It was in force for 69 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 17, 2021, 9:51 PM CDT (02:51 UTC)
Expired: Mar 17, 2021, 11:00 PM CDT
In force: 69 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Autauga County, AL, Chilton County, AL, Coosa County, AL, Elmore County, AL, Lowndes County, AL, Montgomery County, AL

The radar

The Maxwell AFB radar (KMXX), 57 km from the middle of the area, began a volume at 02:52 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.

What was reported inside it

Time	Report	Where	Remark
Mar 17, 10:13 PM CDT	TSTM WND DMG	2 Ne New Prospect, AL	A FEW TREES WERE BLOWN DOWN ALONG CR 20.
Mar 17, 10:16 PM CDT	TSTM WND DMG	3 Nw Prattville, AL	A FEW TREES WERE BLOWN DOWN NEAR THE INTERSECTION OF GARDNER ROAD AND UPPER KINGSTON ROAD.
Mar 17, 10:41 PM CDT	TSTM WND DMG	2 Nw Cecil, AL	SHINGLES BLOWN OF ROOFS AND FENCES BLOWN DOWN IN BOYKIN LAKES NEIGHBORHOOD.
Mar 17, 10:43 PM CDT	TORNADO	4 Nnw Pine Level, AL	A TORNADO TOUCHED DOWN BRIEFLY ON THE EAST SIDE OF HIGHWAY 231 ON THE NORTH SIDE OF PINE LEVEL IN MONTGOMERY COUNTY WEDNESDAY EVENING. THE TORNADO TOUCHED DOWN ON A FARMSTEAD UPROOTING TREES IN THE FRONT YARD, DESTROYING A PLAYHOUSE AND TRAMPOLINE. A TREE FELL
Mar 17, 10:44 PM CDT	TSTM WND DMG	4 Nnw Pine Level, AL	MULTIPLE TREES DOWN OFF OF HIGHWAY 231.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 PDS	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 2.9 hours before the alert went out and 87 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

612 
WUUS54 KBMX 180251
SVRBMX
ALC001-021-037-051-085-101-180400-
/O.NEW.KBMX.SV.W.0010.210318T0251Z-210318T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
951 PM CDT Wed Mar 17 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Autauga County in central Alabama...
  Elmore County in east central Alabama...
  Chilton County in central Alabama...
  Lowndes County in south central Alabama...
  Montgomery County in south central Alabama...
  Coosa County in east central Alabama...

* Until 1100 PM CDT.

* At 951 PM CDT, severe thunderstorms were located along a line
  extending from near Ashby to near Vida Junction to 9 miles
  northwest of Greenville, moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Montgomery, Prattville, Millbrook, Clanton, Wetumpka, Tallassee,
  Jemison, Goodwater, Fort Deposit, Mosses, Hayneville, Rockford,
  Kellyton, Weogufka, Equality, Meadville, Stewartville, Pike Road,
  Thorsby and Elmore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 300 AM CDT for central, south
central, southeastern and east central Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3228 8686 3236 8681 3284 8693 3284 8688
      3307 8688 3302 8655 3310 8649 3311 8601
      3276 8601 3275 8588 3248 8587 3242 8602
      3228 8592 3225 8600 3197 8600 3197 8625
      3205 8631 3205 8641 3196 8641 3196 8684
TIME...MOT...LOC 0251Z 261DEG 44KT 3300 8687 3254 8675 3191 8676 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM

4 follow-up statements

501 
WWUS54 KBMX 180307
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1007 PM CDT Wed Mar 17 2021

ALC001-021-037-051-085-101-180400-
/O.CON.KBMX.SV.W.0010.000000T0000Z-210318T0400Z/
Autauga AL-Elmore AL-Chilton AL-Lowndes AL-Montgomery AL-Coosa AL-
1007 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR AUTAUGA...ELMORE...CENTRAL CHILTON...EASTERN LOWNDES...MONTGOMERY
AND COOSA COUNTIES...

At 1007 PM CDT, severe thunderstorms were located along a line
extending from 7 miles northeast of Jemison to near Booth to near
Lowndes County Airport, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Montgomery, Prattville, Millbrook, Clanton, Wetumpka, Tallassee,
Jemison, Goodwater, Fort Deposit, Mosses, Hayneville, Rockford,
Kellyton, Weogufka, Equality, Meadville, Stewartville, Pike Road,
Thorsby and Elmore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 300 AM CDT for central, south
central, southeastern and east central Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3196 8668 3256 8671 3306 8681 3302 8655
      3310 8649 3311 8601 3276 8601 3275 8588
      3248 8587 3242 8602 3228 8592 3225 8600
      3197 8600 3197 8625 3205 8631 3205 8641
      3196 8641
TIME...MOT...LOC 0307Z 261DEG 44KT 3303 8665 3257 8653 3194 8655 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM

169 
WWUS54 KBMX 180323 RRA
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1023 PM CDT Wed Mar 17 2021

ALC001-021-037-051-085-101-180400-
/O.CON.KBMX.SV.W.0010.000000T0000Z-210318T0400Z/
Autauga AL-Elmore AL-Chilton AL-Lowndes AL-Montgomery AL-Coosa AL-
1023 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR NORTHEASTERN AUTAUGA...ELMORE...EASTERN CHILTON...SOUTHEASTERN
LOWNDES...MONTGOMERY AND COOSA COUNTIES...

At 1023 PM CDT, severe thunderstorms were located along a line
extending from near Strickland Crossroads to near Jordan Lake to
Highland Home, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Montgomery, Prattville, Millbrook, Wetumpka, Tallassee, Goodwater,
Rockford, Kellyton, Weogufka, Equality, Meadville, Stewartville, Pike
Road, Elmore, Coosada, Deatsville, Eclectic, Bradford, Santuck and
Strickland Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 300 AM CDT for central, south
central, southeastern and east central Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3196 8647 3258 8648 3305 8653 3310 8649
      3311 8601 3276 8601 3275 8588 3248 8587
      3242 8602 3228 8592 3225 8600 3197 8600
      3197 8625 3205 8631 3205 8641 3196 8641
TIME...MOT...LOC 0323Z 260DEG 44KT 3308 8635 3260 8631 3197 8633 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM

801 
WWUS54 KBMX 180334
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1034 PM CDT Wed Mar 17 2021

ALC001-021-085-180343-
/O.CAN.KBMX.SV.W.0010.000000T0000Z-210318T0400Z/
Autauga AL-Chilton AL-Lowndes AL-
1034 PM CDT Wed Mar 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN AUTAUGA...EASTERN
CHILTON AND SOUTHEASTERN LOWNDES COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 300 AM CDT for south central,
southeastern and east central Alabama.

LAT...LON 3205 8633 3253 8632 3310 8635 3311 8601
      3276 8601 3275 8588 3248 8587 3242 8602
      3228 8592 3225 8600 3197 8600 3197 8625
      3205 8631
TIME...MOT...LOC 0333Z 263DEG 48KT 3309 8627 3251 8617 3198 8622 

$$

ALC037-051-101-180400-
/O.CON.KBMX.SV.W.0010.000000T0000Z-210318T0400Z/
Elmore AL-Montgomery AL-Coosa AL-
1034 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR ELMORE...MONTGOMERY AND COOSA COUNTIES...

At 1033 PM CDT, severe thunderstorms were located along a line
extending from Stewartville to near Blue Ridge to Grady, moving east
at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Montgomery, Wetumpka, Tallassee, Goodwater, Rockford, Kellyton,
Equality, Meadville, Stewartville, Weogufka, Pike Road, Elmore,
Coosada, Eclectic, Martin Dam, Bradford, Santuck, Auburn University
In Montgomery, Dublin and Titus.

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 3205 8633 3253 8632 3310 8635 3311 8601
      3276 8601 3275 8588 3248 8587 3242 8602
      3228 8592 3225 8600 3197 8600 3197 8625
      3205 8631
TIME...MOT...LOC 0333Z 263DEG 48KT 3309 8627 3251 8617 3198 8622 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM

673 
WWUS54 KBMX 180353
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1053 PM CDT Wed Mar 17 2021

ALC037-051-101-180400-
/O.CON.KBMX.SV.W.0010.000000T0000Z-210318T0400Z/
Elmore AL-Montgomery AL-Coosa AL-
1053 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR EASTERN ELMORE...EASTERN MONTGOMERY AND EASTERN COOSA COUNTIES...

At 1053 PM CDT, severe thunderstorms were located along a line
extending from near Goodwater to Tallassee to 6 miles west of Beans
Crossroads, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Tallassee, Goodwater, Kellyton, Eclectic, Martin Dam, Bradford,
Reeves Airport, Western Lake Martin, Parkdale, Hatchet, Southern Lake
Martin, Kowaliga Bridge, Fishpond, Yates Dam, Ray, Cecil and Yates
Reservoir.

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 8606 3253 8603 3311 8612 3311 8601
      3276 8601 3275 8588 3248 8587 3242 8602
      3228 8592 3225 8600 3197 8600
TIME...MOT...LOC 0353Z 261DEG 44KT 3313 8600 3255 8591 3202 8596 

HAIL...<.75IN
WIND...60MPH
 
$$

87/GRANTHAM

The 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, 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, 10:30 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Lee, Macon, Tallapoosa	75 min
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, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.