Alert archive / Alabama / Tornado Warnings in 2014

Tornado Warning 20, NWS Birmingham, AL

April 28, 2014Jefferson County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 28, 2014, 9:52 PM CDT for Jefferson County, Alabama. It was in force for 53 min. 7 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: Apr 28, 2014, 9:52 PM CDT (02:52 UTC)
Expired: Apr 28, 2014, 10:45 PM CDT
In force: 53 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 49 km from the middle of the area, began a volume at 02:54 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, 10:13 PM CDT	TORNADO 2	2 Nnw Maytown, AL	* 3 INJ * A TORNADO TOUCHED DOWN NEAR OAK LEAF CIRCLE AND TRACKED TO THE NORTHEAST. THE TORNADO INTENSIFIED AS IT NEARED CRUCE RD. APPROXIMATELY FOUR MOBILE HOMES SUSTAINED MAJOR DAMAGE. THE TORNADO THEN SNAPPED AND UPROOTED HUNDREDS OF TREES IN THE CITY O
Apr 28, 10:13 PM CDT	TORNADO 2	2 Nnw Maytown, AL	* 3 INJ * A TORNADO TOUCHED DOWN NEAR OAK LEAF CIRCLE AND TRACKED TO THE NORTHEAST. THE TORNADO INTENSIFIED AS IT NEARED CRUCE RD. FOUR MOBILE HOMES SUSTAINED MAJOR DAMAGE. THE TORNADO THEN SNAPPED AND UPROOTED HUNDREDS OF TREES IN THE CITY OF GRAYSVILLE A
Apr 28, 10:13 PM CDT	TORNADO 2	2 Nnw Maytown, AL	A TORNADO TOUCHED DOWN NEAR OAK LEAF CIRCLE AND TRACKED TO THE NORTHEAST. THE TORNADO INTENSIFIED AS IT NEARED CRUCE RD. APPROXIMATELY FOUR MOBILE HOMES SUSTAINED MAJOR DAMAGE. THE TORNADO THEN SNAPPED AND UPROOTED HUNDREDS OF TREES IN THE CITY OF GRAYSVILLE.
Apr 28, 10:15 PM CDT	TORNADO	2 W Adamsville, AL	MULTIPLE TREES DOWN. TREES ON HOUSE.
Apr 28, 10:18 PM CDT	TORNADO	1 S Graysville, AL	CONFIRMED TORNADO. DAMAGE OCCURRED TO THE KANGEROO GAS STATION OFF OF HIGHWAY 78.
Apr 28, 10:25 PM CDT	TSTM WND DMG	Graysville, AL	GARAGE BAY DOORS AT AUTO DEALERSHIP BLOWN INTO BUILDING.
Apr 28, 10:25 PM CDT	TSTM WND DMG	Graysville, AL	GAS PUMPS BLOWN OVER AT KANGAROO GAS STATION.

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, 2.9 hours before the alert went out and 48 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.

609 
WFUS54 KBMX 290252
TORBMX
ALC073-290345-
/O.NEW.KBMX.TO.W.0020.140429T0252Z-140429T0345Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN JEFFERSON COUNTY IN ALABAMA...

* UNTIL 1045 PM CDT

* AT 950 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR OAK GROVE...OR 11 MILES WEST OF HUEYTOWN...AND
  MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HUEYTOWN...FAIRFIELD...HOMEWOOD...BIRMINGHAM...FULTONDALE...
  MOUNTAIN BROOK...GARDENDALE...IRONDALE...LEEDS AND TRUSSVILLE.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 256 THROUGH 272...
INTERSTATE 459 EXIT NUMBERS 23 THROUGH 33...
US 78 EXIT NUMBERS 85 THROUGH 91...
INTERSTATE 20 EXIT NUMBERS 115 THROUGH 140...
INTERSTATE 59 EXIT NUMBERS 130 THROUGH 143...

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 3376 8665 3376 8654 3372 8652 3366 8652
      3362 8655 3356 8655 3355 8652 3352 8652
      3352 8656 3347 8661 3341 8722 3348 8726
      3349 8726 3381 8670
TIME...MOT...LOC 0252Z 250DEG 40KT 3347 8716

$$

17/KLAWS

1 follow-up statement

402 
WWUS54 KBMX 290308
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1008 PM CDT MON APR 28 2014

ALC073-290345-
/O.CON.KBMX.TO.W.0020.000000T0000Z-140429T0345Z/
JEFFERSON AL-
1008 PM CDT MON APR 28 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN JEFFERSON COUNTY
UNTIL 1045 PM CDT...

AT 1004 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO.  THIS TORNADO WAS LOCATED NEAR SYLVAN SPRINGS...OR 7 MILES
NORTH OF HUEYTOWN...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  BIRMINGHAM...MOUNTAIN BROOK...FULTONDALE...GARDENDALE...IRONDALE...
  LEEDS...TRUSSVILLE...ADAMSVILLE...GRAYSVILLE AND ENSLEY.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 258 THROUGH 272...
INTERSTATE 459 EXIT NUMBERS 23 THROUGH 33...
US 78 EXIT NUMBERS 85 THROUGH 91...
INTERSTATE 20 EXIT NUMBERS 118 THROUGH 140...
INTERSTATE 59 EXIT NUMBERS 130 THROUGH 143...

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

LAT...LON 3376 8665 3376 8654 3374 8654 3371 8652
      3366 8652 3362 8655 3356 8655 3355 8652
      3352 8652 3352 8656 3347 8661 3347 8706
      3357 8711 3381 8670
TIME...MOT...LOC 0308Z 241DEG 39KT 3356 8698

$$

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, 10:01 PM CDT	Tornado Warning	BMX	Blount, Jefferson	59 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.