Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 37, NWS Birmingham, AL

February 28, 2011Barbour County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Feb 28, 2011, 7:19 PM CST for Barbour County, Alabama. It was in force for 28 min. 1 report 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: Feb 28, 2011, 7:19 PM CST (01:19 UTC)
Expired: Feb 28, 2011, 7:47 PM CST
In force: 28 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Barbour County, AL

What was reported inside it

Time	Report	Where	Remark
Feb 28, 7:36 PM CST	TSTM WND DMG	5 Sw Baker Hill, AL	TREES DOWN AND BLOCKING ROADWAY...VIA EMA

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
Feb 28, 12:29 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.3 hours before the alert went out and 182 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: 114 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 206 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

755 
WUUS54 KBMX 010119
SVRBMX
ALC005-010200-
/O.NEW.KBMX.SV.W.0037.110301T0119Z-110301T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
719 PM CST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BARBOUR COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 800 PM CST

* AT 715 PM CST...THE NATIONAL WEATHER SERVICE INDICATED A LINE OF
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  COMER TO CLAYTON...AND MOVING SOUTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EUFAULA...WHITE OAK...GAINO...OSCO...RICHARDS CROSSROADS...MILLERS
  FORD...LUGO AND BAKER HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST MONDAY EVENING FOR
SOUTHEASTERN ALABAMA.

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

LAT...LON 3172 8537 3185 8551 3205 8532 3195 8508
      3191 8511 3189 8511 3186 8513 3179 8512
      3177 8516 3174 8520 3171 8522
TIME...MOT...LOC 0119Z 308DEG 36KT 3199 8529 3187 8541

$$

GOGGINS

3 follow-up statements

138 
WWUS54 KBMX 010128
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
728 PM CST MON FEB 28 2011

ALC005-010200-
/O.CON.KBMX.SV.W.0037.000000T0000Z-110301T0200Z/
BARBOUR AL-
728 PM CST MON FEB 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
BARBOUR COUNTY UNTIL 800 PM CST...

AT 724 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 5 MILES NORTH OF OSCO TO GAINO...MOVING SOUTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  EUFAULA...RICHARDS CROSSROADS AND BAKER HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

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

LAT...LON 3172 8537 3181 8546 3199 8523 3195 8508
      3191 8511 3189 8511 3186 8513 3179 8512
      3177 8516 3174 8520 3171 8522
TIME...MOT...LOC 0129Z 308DEG 36KT 3192 8520 3180 8532

$$

125 
WWUS54 KBMX 010136
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
736 PM CST MON FEB 28 2011

ALC005-010200-
/O.CON.KBMX.SV.W.0037.000000T0000Z-110301T0200Z/
BARBOUR AL-
736 PM CST MON FEB 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
BARBOUR COUNTY UNTIL 800 PM CST...

AT 732 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM EUFAULA TO RICHARDS CROSSROADS...MOVING SOUTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EASTERN BARBOUR COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

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

LAT...LON 3172 8537 3176 8539 3196 8516 3193 8510
      3191 8511 3189 8511 3186 8513 3179 8512
      3177 8516 3174 8520 3171 8522
TIME...MOT...LOC 0136Z 308DEG 36KT 3188 8514 3176 8526

$$

589 
WWUS54 KBMX 010147
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
747 PM CST MON FEB 28 2011

ALC005-010157-
/O.CAN.KBMX.SV.W.0037.000000T0000Z-110301T0200Z/
BARBOUR AL-
747 PM CST MON FEB 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BARBOUR COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED AND HAS 
MOVED OUT OF THE WARNED AREA.

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

LAT...LON 3172 8537 3176 8539 3196 8516 3193 8510
      3191 8511 3189 8511 3186 8513 3179 8512
      3177 8516 3174 8520 3171 8522
TIME...MOT...LOC 0147Z 308DEG 36KT 3180 8504 3169 8516

$$

GOGGINS

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 6:09 PM CST	Tornado Warning	BMX	Macon	23 min
Feb 28, 6:31 PM CST	Severe Thunderstorm Warning	BMX	Bullock, Lee, Macon, Russell	29 min
Feb 28, 6:52 PM CST	Severe Thunderstorm Warning	BMX	Barbour, Russell	38 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2011 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.