Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 162, NWS Birmingham, AL

November 16, 2011Lowndes County, Montgomery County, Alabama

NWS Birmingham, AL issued this tornado warning at Nov 16, 2011, 10:58 AM CST for Lowndes County, Montgomery County, Alabama. It was in force for 32 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: Nov 16, 2011, 10:58 AM CST (16:58 UTC)
Expired: Nov 16, 2011, 11:30 AM CST
In force: 32 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Lowndes County, AL, Montgomery County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 16, 9:46 AM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.0 hours before the alert went out and 132 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: 990 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 497 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 197 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

968 
WFUS54 KBMX 161658
TORBMX
ALC085-101-161730-
/O.NEW.KBMX.TO.W.0162.111116T1658Z-111116T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1058 AM CST WED NOV 16 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LOWNDES COUNTY IN SOUTH CENTRAL ALABAMA...
  CENTRAL MONTGOMERY COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 1130 AM CST

* AT 1053 AM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR LOWNDES COUNTY AIRPORT...OR 6 MILES WEST OF FORT
  DEPOSIT...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FORT DEPOSIT...LOWNDES COUNTY AIRPORT...LOGAN...DAVENPORT...
  PINTLALA...NAFTEL...SELLERS...STRATA...SPRAGUE AND SNOWDOUN.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 142 THROUGH 158...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.

&&

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.

LAT...LON 3203 8675 3229 8624 3197 8612 3196 8630
      3197 8631 3204 8631 3205 8639 3196 8641
      3196 8671
TIME...MOT...LOC 1658Z 253DEG 40KT 3198 8660

$$

56

1 follow-up statement

050 
WWUS54 KBMX 161708
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1108 AM CST WED NOV 16 2011

ALC085-101-161730-
/O.CON.KBMX.TO.W.0162.000000T0000Z-111116T1730Z/
LOWNDES AL-MONTGOMERY AL-
1108 AM CST WED NOV 16 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL MONTGOMERY AND
SOUTHEASTERN LOWNDES COUNTIES UNTIL 1130 AM CST...

AT 1105 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR LOGAN...OR NEAR FORT DEPOSIT...MOVING EAST AT
45 MPH.

LOCATIONS IMPACTED INCLUDE...
  DAVENPORT...PINTLALA...NAFTEL...SELLERS...STRATA...SPRAGUE...
  SNOWDOUN...RAMER...GRADY AND DUBLIN.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 142 THROUGH 158...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3196 8658 3210 8659 3229 8624 3197 8612
      3196 8630 3197 8631 3204 8631 3205 8639
      3196 8641
TIME...MOT...LOC 1708Z 253DEG 40KT 3200 8647

$$

56

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 16, 2:42 AM CST	Special Weather Statement	BMX	Pickens	48 min
Nov 16, 2:59 AM CST	Special Weather Statement	BMX	Fayette	46 min
Nov 16, 3:32 AM CST	Special Weather Statement	BMX	Walker	43 min
Nov 16, 5:44 AM CST	Special Weather Statement	BMX	Sumter	46 min
Nov 16, 6:34 AM CST	Tornado Warning	BMX	Marengo, Sumter	56 min
Nov 16, 7:57 AM CST	Tornado Warning	BMX	Hale, Marengo, Perry	48 min
Nov 16, 8:35 AM CST	Tornado Warning	BMX	Perry	40 min
Nov 16, 9:08 AM CST	Tornado Warning	BMX	Chilton, Dallas, Perry	37 min
Nov 16, 9:31 AM CST	Tornado Warning	BMX	Jefferson, St. Clair, Shelby	29 min
Nov 16, 9:46 AM CST	Tornado Warning	BMX	Chilton, Coosa	44 min
Nov 16, 9:56 AM CST	Tornado Warning	BMX	Calhoun, St. Clair, Talladega	34 min
Nov 16, 10:20 AM CST	Severe Thunderstorm Warning	BMX	Autauga, Dallas, Elmore, Lowndes, Montgomery	40 min
Nov 16, 10:25 AM CST	Tornado Warning	BMX	Calhoun	35 min
Nov 16, 10:36 AM CST	Tornado Warning	BMX	Lowndes, Montgomery	24 min
Nov 16, 10:56 AM CST	Tornado Warning	BMX	Calhoun, Cherokee, Cleburne	34 min
Nov 16, 10:59 AM CST	Tornado Warning	BMX	Elmore, Montgomery	31 min
Nov 16, 11:21 AM CST	Tornado Warning	BMX	Elmore, Macon, Montgomery, Tallapoosa	39 min
Nov 16, 11:40 AM CST	Tornado Warning	BMX	Bullock, Macon, Montgomery	23 min
Nov 16, 11:48 AM CST	Tornado Warning	BMX	Chambers, Lee, Macon	42 min
Nov 16, 12:18 PM CST	Tornado Warning	BMX	Chambers, Lee	27 min
Nov 16, 12:25 PM CST	Tornado Warning	BMX	Bullock, Macon, Russell	25 min
Nov 16, 1:34 PM CST	Special Weather Statement	BMX	Barbour	41 min

Nearby

Tornado Warnings in Alabama, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.