Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 9, NWS Birmingham, AL

February 23, 2016Autauga County, Dallas County, Lowndes County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Feb 23, 2016, 8:45 PM CST for Autauga County, Dallas County, Lowndes County, Alabama. It was in force for 34 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
Feb 23, 2016, 8:45 PM CST (02:45 UTC)
Expired
Feb 23, 2016, 9:19 PM CST
In force
34 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Autauga County, AL, Dallas County, AL, Lowndes County, AL

The radar

The Maxwell AFB radar (KMXX), 78 km from the middle of the area, began a volume at 02:46 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.

IssuedProductOfficeLasted
Feb 23, 5:53 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 2.8 hours before the alert went out and 86 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2016-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 37 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2016-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
37 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

004 
WUUS54 KBMX 240245
SVRBMX
ALC001-047-085-240345-
/O.NEW.KBMX.SV.W.0009.160224T0245Z-160224T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
845 PM CST TUE FEB 23 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN LOWNDES COUNTY IN SOUTH CENTRAL ALABAMA...
  AUTAUGA COUNTY IN CENTRAL ALABAMA...
  SOUTHEASTERN DALLAS COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 945 PM CST

* AT 845 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM BURNSVILLE TO 6 MILES EAST OF BELKNAP...MOVING
  NORTHEAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PRATTVILLE...SELMA...SELMONT-WEST SELMONT...AUTAUGAVILLE...WHITE
  HALL...BILLINGSLEY...LOWNDESBORO...BENTON...BURNSVILLE...VIDA
  JUNCTION...AUTAUGA COUNTY AIRPORT...GARDNER ISLAND...BOOTH...
  MARBURY...TYLER...MULBERRY...SELMA DRAG STRIP...ROBERT F. HENRY
  LOCK AND DAM...MANACK AND CRAIG FIELD AIPORT.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 186 AND 193.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST FOR SOUTHEASTERN
ALABAMA.

LAT...LON 3212 8699 3248 8704 3266 8677 3266 8672
      3270 8671 3271 8670 3271 8642 3241 8641
      3240 8644 3241 8646 3238 8646 3236 8649
      3235 8649 3234 8650 3234 8648 3233 8647
      3231 8649 3228 8649
TIME...MOT...LOC 0245Z 232DEG 44KT 3246 8692 3221 8690 

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

87/GRANTHAM
3 follow-up statements
111 
WWUS54 KBMX 240259
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
859 PM CST TUE FEB 23 2016

ALC047-240309-
/O.CAN.KBMX.SV.W.0009.000000T0000Z-160224T0345Z/
DALLAS AL-
859 PM CST TUE FEB 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DALLAS COUNTY 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 MIDNIGHT CST FOR SOUTHEASTERN
ALABAMA.

LAT...LON 3217 8685 3222 8684 3223 8681 3224 8681
      3224 8684 3236 8681 3260 8687 3266 8677
      3266 8672 3271 8670 3271 8642 3241 8641
      3240 8643 3241 8646 3238 8646 3236 8649
      3234 8650 3233 8647 3231 8649 3228 8649
TIME...MOT...LOC 0259Z 231DEG 48KT 3261 8677 3245 8673 3225 8683 

$$

ALC001-085-240345-
/O.CON.KBMX.SV.W.0009.000000T0000Z-160224T0345Z/
LOWNDES AL-AUTAUGA AL-
859 PM CST TUE FEB 23 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CST
FOR NORTHERN LOWNDES AND AUTAUGA COUNTIES...

AT 859 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR BILLINGSLEY TO NEAR MULBERRY TO NEAR BENTON...
MOVING NORTHEAST AT 55 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
PRATTVILLE...AUTAUGAVILLE...WHITE HALL...BILLINGSLEY...LOWNDESBORO...
BENTON...VIDA JUNCTION...AUTAUGA COUNTY AIRPORT...BOOTH...MARBURY...
MULBERRY...ROBERT F. HENRY LOCK AND DAM...MANACK...NEW PROSPECT AND
DAWSON MILL.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 186 AND 193.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST FOR SOUTHEASTERN
ALABAMA.

LAT...LON 3217 8685 3222 8684 3223 8681 3224 8681
      3224 8684 3236 8681 3260 8687 3266 8677
      3266 8672 3271 8670 3271 8642 3241 8641
      3240 8643 3241 8646 3238 8646 3236 8649
      3234 8650 3233 8647 3231 8649 3228 8649
TIME...MOT...LOC 0259Z 231DEG 48KT 3261 8677 3245 8673 3225 8683 

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

87/GRANTHAM
864 
WWUS54 KBMX 240310
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
910 PM CST TUE FEB 23 2016

ALC085-240320-
/O.CAN.KBMX.SV.W.0009.000000T0000Z-160224T0345Z/
LOWNDES AL-
910 PM CST TUE FEB 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LOWNDES COUNTY 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 MIDNIGHT CST FOR SOUTHEASTERN
ALABAMA.

LAT...LON 3236 8671 3237 8672 3240 8672 3240 8674
      3247 8675 3257 8686 3260 8687 3266 8677
      3266 8672 3271 8670 3271 8642 3244 8641
      3237 8661 3238 8662 3240 8661 3240 8664
      3235 8668
TIME...MOT...LOC 0310Z 229DEG 43KT 3262 8680 3253 8665 3235 8670 

$$

ALC001-240345-
/O.CON.KBMX.SV.W.0009.000000T0000Z-160224T0345Z/
AUTAUGA AL-
910 PM CST TUE FEB 23 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CST
FOR AUTAUGA COUNTY...

AT 910 PM CST...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR PLECHER TO NEAR VIDA JUNCTION TO NEAR WHITE
HALL...MOVING NORTHEAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
PRATTVILLE...AUTAUGAVILLE...BILLINGSLEY...VIDA JUNCTION...AUTAUGA
COUNTY AIRPORT...BOOTH...MARBURY...NEW PROSPECT AND DAWSON MILL.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 186 AND 193.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST FOR SOUTHEASTERN
ALABAMA.

LAT...LON 3236 8671 3237 8672 3240 8672 3240 8674
      3247 8675 3257 8686 3260 8687 3266 8677
      3266 8672 3271 8670 3271 8642 3244 8641
      3237 8661 3238 8662 3240 8661 3240 8664
      3235 8668
TIME...MOT...LOC 0310Z 229DEG 43KT 3262 8680 3253 8665 3235 8670 

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

87/GRANTHAM
195 
WWUS54 KBMX 240319
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
919 PM CST TUE FEB 23 2016

ALC001-240329-
/O.CAN.KBMX.SV.W.0009.000000T0000Z-160224T0345Z/
AUTAUGA AL-
919 PM CST TUE FEB 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR AUTAUGA COUNTY IS CANCELLED...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST FOR SOUTHEASTERN
ALABAMA.

LAT...LON 3236 8671 3237 8672 3240 8672 3240 8674
      3247 8675 3257 8686 3260 8687 3266 8677
      3266 8672 3271 8670 3271 8642 3244 8641
      3237 8661 3238 8662 3240 8661 3240 8664
      3235 8668
TIME...MOT...LOC 0316Z 232DEG 44KT 3267 8673 3258 8658 3240 8663 

$$

87/GRANTHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 6:25 PM CSTTornado WarningBMXSumter50 min
Feb 23, 6:50 PM CSTTornado WarningBMXMarengo55 min
Feb 23, 7:39 PM CSTSevere Thunderstorm WarningBMXDallas, Perry66 min
Feb 23, 8:47 PM CSTRiver Flood WarningBMXSumter69 hr
Feb 24, 1:26 AM CSTSpecial Weather StatementBMXBlount64 min
Feb 24, 3:17 AM CSTRiver Flood WarningBMXCalhoun, Cherokee, Etowah, St. Clair39 hr
Feb 24, 8:44 AM CSTRiver Flood WarningBMXAutauga, Dallas, Elmore, Lowndes, Montgomery66 hr
Feb 24, 9:03 AM CSTRiver Flood WarningBMXBibb, Jefferson, Shelby23 hr
Feb 24, 9:12 AM CSTRiver Flood WarningBMXChilton, Coosa, Elmore, Shelby, Talladega34 hr
Feb 24, 9:24 AM CSTRiver Flood WarningBMXJefferson, Tuscaloosa, Walker47 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2016Every severe thunderstorm warning in 2016

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.