Alert archive / Alabama / Tornado Warnings in 2014

Tornado Warning 21, NWS Birmingham, AL

April 28, 2014Blount County, Jefferson County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 28, 2014, 10:01 PM CDT for Blount County, Jefferson County, Alabama. It was in force for 59 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 28, 2014, 10:01 PM CDT (03:01 UTC)
Expired: Apr 28, 2014, 11:00 PM CDT
In force: 59 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Blount County, AL, Jefferson County, AL

The radar

The Birmingham radar (KBMX), 87 km from the middle of the area, began a volume at 03:04 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 28, 10:03 PM CDT	TORNADO	1 Nw Kimberly, AL	CONFIRMED TORNADO ON THE GROUND. KIMBERLY FIRE DEPARTMENT DESTROYED.

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
Apr 28, 7:59 PM CDT	Tornado Watch	SPC	11 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 3.0 hours before the alert went out and 87 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: 1160 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1240 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 236 m²/s²
0-3 km storm-relative helicity: 361 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 9.6

Open this sounding in Storm Lab

The text

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

635 
WFUS54 KBMX 290301
TORBMX
ALC009-073-290400-
/O.NEW.KBMX.TO.W.0021.140429T0301Z-140429T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1001 PM CDT MON APR 28 2014

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  BLOUNT COUNTY IN ALABAMA...
  NORTHEASTERN JEFFERSON COUNTY IN ALABAMA...

* UNTIL 1100 PM CDT

* AT 959 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR MORRIS...OR 6 MILES NORTHWEST OF GARDENDALE...AND
  MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CLEVELAND...ONEONTA...BLOUNTSVILLE...MORRIS...KIMBERLY...WARRIOR...
  TRAFFORD...COUNTY LINE...HAYDEN AND DALLAS.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 272 THROUGH 282...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758 OR TWEET YOUR REPORT USING HASHTAG ALWX

LAT...LON 3410 8630 3405 8633 3398 8633 3394 8637
      3394 8633 3391 8635 3388 8634 3382 8643
      3380 8658 3377 8658 3376 8655 3366 8686
      3377 8696 3425 8645
TIME...MOT...LOC 0301Z 233DEG 42KT 3375 8683

$$

17/KLAWS

1 follow-up statement

140 
WWUS54 KBMX 290306
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1006 PM CDT MON APR 28 2014

ALC009-073-290400-
/O.CON.KBMX.TO.W.0021.000000T0000Z-140429T0400Z/
BLOUNT AL-JEFFERSON AL-
1006 PM CDT MON APR 28 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN JEFFERSON AND
BLOUNT COUNTIES UNTIL 1100 PM CDT...

AT 1004 PM CDT...THE PUBLIC REPORTED A TORNADO.  THIS TORNADO WAS
LOCATED NEAR KIMBERLY...OR 7 MILES NORTH OF GARDENDALE...MOVING
NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  CLEVELAND...ONEONTA...BLOUNTSVILLE...TRAFFORD...COUNTY LINE...
  HAYDEN...DALLAS...LOCUST FORK...NECTAR AND FAIRVIEW.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 280 THROUGH 282...

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

LAT...LON 3410 8630 3405 8633 3398 8633 3394 8637
      3394 8633 3391 8635 3388 8634 3382 8643
      3380 8658 3377 8658 3376 8655 3370 8682
      3379 8691 3425 8645
TIME...MOT...LOC 0306Z 233DEG 42KT 3378 8677

$$

17/KLAWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:12 PM CDT	Tornado Warning	BMX	Fayette, Lamar	63 min
Apr 28, 7:23 PM CDT	Tornado Warning	BMX	Fayette, Marion, Walker	67 min
Apr 28, 7:27 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Pickens	48 min
Apr 28, 7:47 PM CDT	Tornado Warning	BMX	Marion, Winston	58 min
Apr 28, 7:47 PM CDT	Tornado Warning	BMX	Fayette, Pickens, Tuscaloosa	43 min
Apr 28, 7:53 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	52 min
Apr 28, 8:03 PM CDT	Tornado Warning	BMX	Winston	42 min
Apr 28, 8:06 PM CDT	Severe Thunderstorm Warning	BMX	Walker	54 min
Apr 28, 8:24 PM CDT	Tornado Warning	BMX	Pickens, Tuscaloosa	36 min
Apr 28, 8:30 PM CDT	Tornado Warning	BMX	Walker	30 min
Apr 28, 8:41 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	49 min
Apr 28, 8:42 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Jefferson, Tuscaloosa, Walker	63 min
Apr 28, 8:46 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Pickens, Tuscaloosa	59 min
Apr 28, 8:58 PM CDT	Tornado Warning	BMX	Pickens, Tuscaloosa	47 min
Apr 28, 9:00 PM CDT	Tornado Warning	BMX	Pickens	45 min
Apr 28, 9:07 PM CDT	Tornado Warning	BMX	Sumter	53 min
Apr 28, 9:24 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Hale, Tuscaloosa	51 min
Apr 28, 9:24 PM CDT	Tornado Warning	BMX	Jefferson	66 min
Apr 28, 9:45 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Hale, Marengo, Sumter	45 min
Apr 28, 9:48 PM CDT	Tornado Warning	BMX	Bibb, Hale, Tuscaloosa	27 min
Apr 28, 9:52 PM CDT	Tornado Warning	BMX	Jefferson	53 min
Apr 28, 10:06 PM CDT	Tornado Warning Emergency	BMX	Tuscaloosa	54 min
Apr 28, 10:22 PM CDT	Tornado Warning Emergency	BMX	Jefferson	38 min
Apr 28, 10:29 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Hale, Marengo, Perry	61 min
Apr 28, 10:41 PM CDT	Tornado Warning Emergency	BMX	Jefferson, Tuscaloosa	64 min
Apr 28, 11:16 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Bibb, Chilton, Dallas, Elmore, Marengo and 1 more	89 min
Apr 28, 11:28 PM CDT	Tornado Warning	BMX	Blount, Etowah	62 min
Apr 29, 12:08 AM CDT	Tornado Warning	BMX	Chilton, Coosa	67 min
Apr 29, 12:23 AM CDT	Tornado Warning	BMX	Etowah	52 min
Apr 29, 12:29 AM CDT	Tornado Warning	BMX	Blount	61 min
Apr 29, 12:51 AM CDT	Tornado Warning	BMX	Etowah	54 min
Apr 29, 1:25 AM CDT	Severe Thunderstorm Warning	BMX	Clay, Coosa, Tallapoosa	65 min
Apr 29, 1:30 AM CDT	Tornado Warning	BMX	Clay	45 min
Apr 29, 1:30 AM CDT	Tornado Warning	BMX	Autauga, Elmore	60 min
Apr 29, 1:36 AM CDT	Tornado Warning	BMX	Lowndes, Montgomery	54 min
Apr 29, 2:05 AM CDT	Tornado Warning	BMX	Elmore, Macon, Montgomery	55 min
Apr 29, 3:03 AM CDT	Severe Thunderstorm Warning	BMX	Pike	57 min
Apr 29, 3:23 AM CDT	Tornado Warning	BMX	Pike	37 min
Apr 29, 3:30 AM CDT	Tornado Warning	BMX	Lee, Macon	30 min
Apr 29, 3:52 AM CDT	Tornado Warning Emergency	BMX	Lee, Russell	38 min
Apr 29, 5:23 AM CDT	Dense Fog Advisory	BMX	Fayette, Greene, Hale, Lamar, Marengo, Marion and 5 more	4 hr
Apr 29, 10:00 AM CDT	River Flood Warning	BMX	Greene, Hale, Marengo	4 days
Apr 29, 5:48 PM CDT	Special Weather Statement	BMX	Winston	42 min
Apr 29, 5:50 PM CDT	Special Weather Statement	BMX	Pickens	40 min

Nearby

Tornado Warnings in Alabama, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.