Alert archive / Alabama / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Birmingham, AL

March 5, 2013Marion County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 5, 2013, 10:41 AM CST for Marion County, Alabama. It was in force for 34 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: Mar 5, 2013, 10:41 AM CST (16:41 UTC)
Expired: Mar 5, 2013, 11:15 AM CST
In force: 34 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Marion County, AL

The radar

The Columbus AFB radar (KGWX), 68 km from the middle of the area, began a volume at 16:44 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
Mar 5, 10:50 AM CST	HAIL 1	1 W Bear Creek, AL	REPORTED NEAR THE FIRE DEPARTMENT JUST WEST OF BEAR CREEK.

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, 4.7 hours before the alert went out and 152 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 638 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 413 m²/s²
0-3 km storm-relative helicity: 335 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

930 
WUUS54 KBMX 051641
SVRBMX
ALC093-051715-
/O.NEW.KBMX.SV.W.0021.130305T1641Z-130305T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1041 AM CST TUE MAR 5 2013

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MARION COUNTY IN NORTHWEST ALABAMA...

* UNTIL 1115 AM CST

* AT 1041 AM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS STORM
  WAS LOCATED 6 MILES SOUTHWEST OF HACKLEBURG...OR 7 MILES NORTHEAST
  OF HAMILTON...AND MOVING EAST AT 65 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HACKLEBURG...TESSNER AND BEAR CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 OR TWEET YOUR REPORT USING HASHTAG ALWX

LAT...LON 3432 8768 3431 8763 3423 8763 3419 8798
      3432 8796
TIME...MOT...LOC 1641Z 253DEG 55KT 3424 8789

$$

19

1 follow-up statement

818 
WWUS54 KBMX 051700
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1100 AM CST TUE MAR 5 2013

ALC093-051710-
/O.CAN.KBMX.SV.W.0021.000000T0000Z-130305T1715Z/
MARION AL-
1100 AM CST TUE MAR 5 2013

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MARION COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

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

LAT...LON 3432 8768 3431 8763 3423 8763 3419 8798
      3432 8796
TIME...MOT...LOC 1700Z 253DEG 55KT 3432 8755

$$

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 5, 4:28 AM CST	Wind Advisory	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	16 hr
Mar 5, 10:19 AM CST	Special Weather Statement	BMX	Marion	26 min
Mar 5, 10:55 AM CST	Special Weather Statement	BMX	Winston	35 min
Mar 5, 11:12 AM CST	Special Weather Statement	BMX	Fayette, Lamar, Marion	63 min
Mar 5, 11:34 AM CST	Special Weather Statement	BMX	Pickens	56 min
Mar 5, 12:33 PM CST	Special Weather Statement	BMX	Jefferson, Tuscaloosa	42 min
Mar 5, 12:41 PM CST	Special Weather Statement	BMX	Greene, Hale, Perry, Sumter	49 min
Mar 5, 1:08 PM CST	Severe Thunderstorm Warning	BMX	Bibb, Jefferson, Shelby, Tuscaloosa	67 min
Mar 5, 1:31 PM CST	Special Weather Statement	BMX	Autauga, Chilton, Coosa, Dallas, Marengo, Perry	44 min
Mar 5, 1:51 PM CST	Severe Thunderstorm Warning	BMX	Chilton, Clay, Coosa, Talladega	39 min
Mar 5, 2:21 PM CST	Special Weather Statement	BMX	Autauga, Elmore, Lowndes, Montgomery	39 min
Mar 5, 2:24 PM CST	Severe Thunderstorm Warning	BMX	Clay, Coosa, Elmore, Randolph, Tallapoosa	66 min
Mar 5, 2:27 PM CST	Special Weather Statement	BMX	Calhoun, Cleburne	48 min
Mar 5, 2:54 PM CST	Special Weather Statement	BMX	Chambers	51 min
Mar 5, 3:00 PM CST	Special Weather Statement	BMX	Bullock, Lee, Macon, Montgomery, Pike	45 min
Mar 5, 3:16 PM CST	Severe Thunderstorm Warning	BMX	Chambers, Lee	44 min
Mar 5, 3:48 PM CST	Special Weather Statement	BMX	Barbour, Bullock, Pike, Russell	57 min
Mar 5, 4:43 PM CST	Special Weather Statement	BMX	Barbour	32 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2013 Every severe thunderstorm warning in 2013

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.