Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 26, NWS Birmingham, AL

April 6, 2016Calhoun County, Cherokee County, Cleburne County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 6, 2016, 7:55 PM CDT for Calhoun County, Cherokee County, Cleburne County, Alabama. It was in force for 20 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: Apr 6, 2016, 7:55 PM CDT (00:55 UTC)
Expired: Apr 6, 2016, 8:15 PM CDT
In force: 20 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Calhoun County, AL, Cherokee County, AL, Cleburne County, AL

The radar

The Atlanta radar (KFFC), 119 km from the middle of the area, began a volume at 00:55 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
Apr 6, 8:10 PM CDT	HAIL 1	Piedmont, AL	SECOND QUARTER SIZE HAIL REPORT IN PIEDMONT, AL

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

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.9 hours before the alert went out and 124 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: 6 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1454 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 266 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

137 
WUUS54 KBMX 070055
SVRBMX
ALC015-019-029-070145-
/O.NEW.KBMX.SV.W.0026.160407T0055Z-160407T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
755 PM CDT WED APR 6 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHEROKEE COUNTY IN NORTHEASTERN ALABAMA...
  NORTHEASTERN CLEBURNE COUNTY IN EAST CENTRAL ALABAMA...
  NORTHEASTERN CALHOUN COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 845 PM CDT

* AT 755 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER JACKSONVILLE
  STATE UNIVERSITY...OR NEAR JACKSONVILLE...MOVING EAST AT 45 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...
  JACKSONVILLE...PIEDMONT...PLEASANT GAP...MARS HILLS...JACKSONVILLE
  STATE UNIVERSITY...KNIGHTENS CROSSROADS...OAK LEVEL...SPRING GARDEN...
  BORDEN SPRINGS AND LIBERTY HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3378 8579 3392 8584 3394 8577 3393 8574
      3395 8574 3406 8542 3384 8538
TIME...MOT...LOC 0055Z 253DEG 38KT 3386 8576 

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

32/DAVIS

2 follow-up statements

065 
WWUS54 KBMX 070110
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
810 PM CDT WED APR 6 2016

ALC015-019-029-070145-
/O.CON.KBMX.SV.W.0026.000000T0000Z-160407T0145Z/
CHEROKEE AL-CLEBURNE AL-CALHOUN AL-
810 PM CDT WED APR 6 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTHEASTERN CHEROKEE...NORTHEASTERN CLEBURNE AND NORTHEASTERN
CALHOUN COUNTIES...

AT 809 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER PIEDMONT...
MOVING EAST AT 45 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...
PIEDMONT...PLEASANT GAP...KNIGHTENS CROSSROADS...SPRING GARDEN AND
BORDEN SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3386 8571 3395 8574 3406 8542 3387 8539
TIME...MOT...LOC 0109Z 250DEG 38KT 3395 8559 

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

32/DAVIS

252 
WWUS54 KBMX 070115
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
815 PM CDT WED APR 6 2016

ALC015-019-029-070125-
/O.CAN.KBMX.SV.W.0026.000000T0000Z-160407T0145Z/
CHEROKEE AL-CLEBURNE AL-CALHOUN AL-
815 PM CDT WED APR 6 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHEROKEE...
NORTHEASTERN CLEBURNE AND NORTHEASTERN CALHOUN COUNTIES 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.

LAT...LON 3386 8571 3395 8574 3406 8542 3387 8539
TIME...MOT...LOC 0112Z 253DEG 38KT 3397 8551 

$$

32/DAVIS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 7:02 PM CDT	Special Weather Statement	BMX	Calhoun	43 min
Apr 6, 7:37 PM CDT	Special Weather Statement	BMX	Cherokee	23 min
Apr 6, 7:51 PM CDT	Special Weather Statement	BMX	Calhoun	39 min
Apr 6, 7:53 PM CDT	Special Weather Statement	BMX	Greene, Hale	52 min
Apr 6, 8:03 PM CDT	Special Weather Statement	BMX	Jefferson	42 min
Apr 6, 8:12 PM CDT	Special Weather Statement	BMX	Bibb	48 min
Apr 6, 8:27 PM CDT	Special Weather Statement	BMX	Shelby	63 min
Apr 6, 8:36 PM CDT	Special Weather Statement	BMX	Hale, Perry	39 min
Apr 6, 8:53 PM CDT	Special Weather Statement	BMX	Bullock	52 min
Apr 6, 8:59 PM CDT	Special Weather Statement	BMX	Bibb, Chilton	46 min
Apr 6, 9:06 PM CDT	Special Weather Statement	BMX	Talladega	39 min
Apr 6, 9:12 PM CDT	Special Weather Statement	BMX	Calhoun, Cherokee, Cleburne	48 min
Apr 6, 9:16 PM CDT	Special Weather Statement	BMX	Dallas	44 min
Apr 6, 9:29 PM CDT	Special Weather Statement	BMX	Clay	46 min
Apr 6, 9:40 PM CDT	Special Weather Statement	BMX	Russell	50 min
Apr 6, 9:50 PM CDT	Special Weather Statement	BMX	Autauga, Coosa, Elmore, Tallapoosa	40 min
Apr 6, 10:04 PM CDT	Special Weather Statement	BMX	Dallas, Lowndes	41 min
Apr 6, 10:07 PM CDT	Special Weather Statement	BMX	Randolph	38 min
Apr 6, 10:11 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Lowndes	49 min
Apr 6, 10:14 PM CDT	Severe Thunderstorm Warning	BMX	Russell	32 min
Apr 6, 10:26 PM CDT	Special Weather Statement	BMX	Montgomery	49 min
Apr 6, 10:35 PM CDT	Special Weather Statement	BMX	Elmore	40 min
Apr 6, 10:53 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Macon, Montgomery	67 min
Apr 6, 11:34 PM CDT	Tornado Warning	BMX	Lee	26 min
Apr 6, 11:56 PM CDT	Tornado Warning	BMX	Barbour, Bullock	24 min
Apr 6, 11:57 PM CDT	Tornado Warning	BMX	Russell	22 min
Apr 7, 12:03 AM CDT	Tornado Warning	BMX	Lee, Russell	15 min
Apr 7, 12:23 AM CDT	Tornado Warning	BMX	Barbour	47 min
Apr 7, 12:43 AM CDT	Dense Fog Advisory	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	8 hr

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.