Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 86, NWS Birmingham, AL

July 14, 2016Walker County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 14, 2016, 3:08 PM CDT for Walker County, Alabama. It was in force for 25 min. 2 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: Jul 14, 2016, 3:08 PM CDT (20:08 UTC)
Expired: Jul 14, 2016, 3:33 PM CDT
In force: 25 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Walker County, AL

The radar

The Birmingham radar (KBMX), 66 km from the middle of the area, began a volume at 20:12 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
Jul 14, 3:26 PM CDT	TSTM WND DMG	2 Ne Gorgas Steam Plant, AL	TREE DOWN IN THE COPELAND FERRY COMMUNITY. LOCATION APPROXIMATE. TIME ESTIMATED BY RADAR.
Jul 14, 3:29 PM CDT	TSTM WND DMG	Cordova, AL	TREE REPORTED DOWN IN THE CITY OF CORDOVA. TIME ESTIMATED BY RADAR.

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.1 hours before the alert went out and 65 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: 424 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

255 
WUUS54 KBMX 142008
SVRBMX
ALC127-142100-
/O.NEW.KBMX.SV.W.0086.160714T2008Z-160714T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
308 PM CDT THU JUL 14 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN WALKER COUNTY IN ALABAMA...

* UNTIL 400 PM CDT

* AT 307 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GORGAS...OR
  NEAR CORDOVA...MOVING EAST AT 20 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  SUMITON...CORDOVA...DORA...PARRISH...SIPSEY...GORGAS STEAM PLANT...
  GORGAS...ROCKY HOLLOW...BURNWELL...QUINTON...BELOIT...LYNNS PARK...
  BARNEY...EMPIRE AND GOODSPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3380 8695 3380 8697 3379 8697 3379 8700
      3377 8701 3377 8702 3375 8702 3373 8704
      3369 8704 3368 8706 3366 8706 3366 8709
      3363 8710 3363 8714 3361 8715 3361 8718
      3359 8720 3360 8731 3378 8733 3384 8695
TIME...MOT...LOC 2007Z 266DEG 18KT 3370 8724 

HAIL...1.00IN
WIND...60MPH
 
$$

56

2 follow-up statements

467 
WWUS54 KBMX 142025
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
325 PM CDT THU JUL 14 2016

ALC127-142100-
/O.CON.KBMX.SV.W.0086.000000T0000Z-160714T2100Z/
WALKER AL-
325 PM CDT THU JUL 14 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN WALKER COUNTY...

AT 324 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BURNWELL...OR
NEAR DORA...MOVING EAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
SUMITON...CORDOVA...DORA...GORGAS STEAM PLANT...ROCKY HOLLOW...
BURNWELL...QUINTON...BELOIT...GORGAS...BARNEY AND GOODSPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3380 8697 3379 8700 3377 8701 3377 8702
      3375 8702 3373 8704 3369 8704 3368 8706
      3366 8706 3366 8709 3363 8710 3363 8714
      3361 8715 3361 8718 3359 8720 3360 8726
      3378 8724 3381 8695 3380 8695
TIME...MOT...LOC 2024Z 286DEG 16KT 3369 8713 

HAIL...1.00IN
WIND...60MPH
 
$$

56

116 
WWUS54 KBMX 142033
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
333 PM CDT THU JUL 14 2016

ALC127-142043-
/O.CAN.KBMX.SV.W.0086.000000T0000Z-160714T2100Z/
WALKER AL-
333 PM CDT THU JUL 14 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WALKER COUNTY IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE WARNING HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS AND
HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
BIRMINGHAM.

LAT...LON 3380 8697 3379 8700 3377 8701 3377 8702
      3375 8702 3373 8704 3369 8704 3368 8706
      3366 8706 3366 8709 3363 8710 3363 8714
      3361 8715 3361 8718 3359 8720 3360 8726
      3378 8724 3381 8695 3380 8695
TIME...MOT...LOC 2030Z 266DEG 18KT 3369 8707 

$$

56

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 1:01 PM CDT	Special Weather Statement	BMX	Marion	59 min
Jul 14, 1:06 PM CDT	Special Weather Statement	BMX	Winston	24 min
Jul 14, 1:18 PM CDT	Special Weather Statement	BMX	Marengo	42 min
Jul 14, 1:19 PM CDT	Special Weather Statement	BMX	Marengo	41 min
Jul 14, 1:29 PM CDT	Special Weather Statement	BMX	Marion	61 min
Jul 14, 1:48 PM CDT	Special Weather Statement	BMX	Lamar	57 min
Jul 14, 1:59 PM CDT	Special Weather Statement	BMX	Winston	61 min
Jul 14, 2:11 PM CDT	Special Weather Statement	BMX	Marion	49 min
Jul 14, 2:39 PM CDT	Special Weather Statement	BMX	Chilton	51 min
Jul 14, 2:45 PM CDT	Special Weather Statement	BMX	Walker	30 min
Jul 14, 2:49 PM CDT	Special Weather Statement	BMX	Walker	41 min
Jul 14, 3:20 PM CDT	Special Weather Statement	BMX	Blount	55 min
Jul 14, 3:27 PM CDT	Special Weather Statement	BMX	Jefferson	63 min
Jul 14, 3:32 PM CDT	Special Weather Statement	BMX	Walker	58 min
Jul 14, 3:35 PM CDT	Special Weather Statement	BMX	Jefferson	25 min
Jul 14, 3:59 PM CDT	Special Weather Statement	BMX	Coosa	31 min
Jul 14, 4:08 PM CDT	Special Weather Statement	BMX	Jefferson	37 min
Jul 14, 4:11 PM CDT	Special Weather Statement	BMX	St. Clair	34 min
Jul 14, 4:19 PM CDT	Special Weather Statement	BMX	Blount	26 min
Jul 14, 4:28 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Jefferson, St. Clair	32 min
Jul 14, 4:31 PM CDT	Special Weather Statement	BMX	Elmore	29 min
Jul 14, 4:33 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	27 min
Jul 14, 4:39 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	51 min
Jul 14, 4:55 PM CDT	Special Weather Statement	BMX	Calhoun	35 min
Jul 14, 4:58 PM CDT	Special Weather Statement	BMX	St. Clair	32 min
Jul 14, 5:00 PM CDT	Special Weather Statement	BMX	Elmore	30 min
Jul 14, 5:09 PM CDT	Special Weather Statement	BMX	Talladega	36 min
Jul 14, 5:34 PM CDT	Special Weather Statement	BMX	Pickens	26 min
Jul 14, 5:43 PM CDT	Special Weather Statement	BMX	Lamar	32 min
Jul 14, 5:47 PM CDT	Special Weather Statement	BMX	Calhoun, Clay, Cleburne, Talladega	28 min
Jul 14, 5:56 PM CDT	Special Weather Statement	BMX	Fayette, Pickens	49 min
Jul 14, 6:27 PM CDT	Special Weather Statement	BMX	Lamar, Marion	48 min
Jul 14, 6:31 PM CDT	Areal Flood Warning	BMX	Calhoun	3 hr
Jul 14, 6:40 PM CDT	Special Weather Statement	BMX	Fayette, Pickens	65 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2016 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.