Alert archive / Alabama / Tornado Warnings in 2014

Tornado Warning 13, NWS Huntsville, AL

April 28, 2014Lawrence County, Alabama

NWS Huntsville, AL issued this tornado warning at Apr 28, 2014, 5:50 PM CDT for Lawrence County, Alabama. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 28, 2014, 5:50 PM CDT (22:50 UTC)
Expired: Apr 28, 2014, 6:15 PM CDT
In force: 25 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon

County Lawrence County, AL

The radar

The Northeast Alabama radar (KHTX), 120 km from the middle of the area, began a volume at 22:53 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.

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, 12:39 PM CDT	Tornado Watch PDS	SPC	8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.8 hours before the alert went out and 175 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: 267 J/kg
Mixed-layer CIN: -224 J/kg
Mixed-layer LCL: 707 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 573 m²/s²
0-3 km storm-relative helicity: 616 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 14.5

Open this sounding in Storm Lab

The text

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

041 
WFUS54 KHUN 282250
TORHUN
ALC079-282315-
/O.NEW.KHUN.TO.W.0013.140428T2250Z-140428T2315Z/

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

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN LAWRENCE COUNTY IN NORTHWEST ALABAMA...

* UNTIL 615 PM CDT
    
* AT 550 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR LEIGHTON...OR 13 MILES SOUTHEAST OF MUSCLE SHOALS...AND MOVING
  NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TOWN CREEK...COURTLAND...NORTH COURTLAND...HILLSBORO...RED BANK...
  WHEELER AND NE SMITH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3463 8748 3465 8748 3465 8745 3470 8745
      3471 8742 3474 8743 3481 8737 3475 8729
      3476 8722 3475 8718 3472 8714 3469 8711
      3466 8711 3455 8749 3458 8751 3460 8751
TIME...MOT...LOC 2250Z 238DEG 33KT 3462 8749 

$$

BCC

2 follow-up statements

147 
WWUS54 KHUN 282300
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
600 PM CDT MON APR 28 2014

ALC079-282315-
/O.CON.KHUN.TO.W.0013.000000T0000Z-140428T2315Z/
LAWRENCE AL-
600 PM CDT MON APR 28 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR NORTHERN
LAWRENCE COUNTY...
    
AT 559 PM CDT...DOPPLER RADAR WAS TRACKING A CONFIRMED TORNADO. THIS
TORNADO LOCATED OVER TOWN CREEK...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE... TOWN CREEK...COURTLAND...NORTH 
COURTLAND...HILLSBORO...RED BANK AND WHEELER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3465 8745 3470 8745 3471 8742 3474 8743
      3481 8737 3475 8729 3476 8722 3475 8718
      3472 8714 3469 8711 3466 8711 3460 8740
TIME...MOT...LOC 2259Z 245DEG 34KT 3465 8738 

$$

BCC

884 
WWUS54 KHUN 282315
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
615 PM CDT MON APR 28 2014

ALC079-282324-
/O.EXP.KHUN.TO.W.0013.000000T0000Z-140428T2315Z/
LAWRENCE AL-
615 PM CDT MON APR 28 2014

...THE TORNADO WARNING FOR NORTHERN LAWRENCE COUNTY WILL EXPIRE AT
615 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS TO BE CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER SMALL HAIL
AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM CDT.

LAT...LON 3465 8745 3470 8745 3471 8742 3474 8743
      3481 8737 3475 8729 3476 8722 3475 8718
      3472 8714 3469 8711 3466 8711 3460 8740
TIME...MOT...LOC 2310Z 238DEG 33KT 3465 8738 

$$

BCC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 2:47 PM CDT	Special Weather Statement	HUN	Franklin	58 min
Apr 28, 3:09 PM CDT	Tornado Warning	HUN	Colbert, Franklin	51 min
Apr 28, 3:41 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Franklin	34 min
Apr 28, 3:50 PM CDT	Flash Flood Warning	HUN	Colbert, Franklin, Lauderdale	6 hr
Apr 28, 3:56 PM CDT	Tornado Warning	HUN	Colbert, Franklin	34 min
Apr 28, 4:29 PM CDT	Flash Flood Warning	HUN	Colbert, Franklin, Lauderdale, Lawrence, Limestone	6 hr
Apr 28, 4:35 PM CDT	Tornado Warning	HUN	Lauderdale, Lawrence, Limestone	25 min
Apr 28, 4:56 PM CDT	Tornado Warning Emergency	HUN	Limestone	34 min
Apr 28, 5:15 PM CDT	Tornado Warning Emergency	HUN	Limestone, Madison	30 min
Apr 28, 5:32 PM CDT	Flash Flood Warning	HUN	Limestone, Madison, Morgan	3 hr
Apr 28, 5:36 PM CDT	Tornado Warning	HUN	Franklin	39 min
Apr 28, 5:41 PM CDT	Tornado Warning	HUN	Limestone	34 min
Apr 28, 5:45 PM CDT	Tornado Warning	HUN	Madison	30 min
Apr 28, 6:27 PM CDT	Severe Thunderstorm Warning	HUN	Madison	33 min
Apr 28, 6:40 PM CDT	Tornado Warning	HUN	Madison	35 min
Apr 28, 6:50 PM CDT	Severe Thunderstorm Warning	HUN	Limestone, Madison	25 min
Apr 28, 6:52 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence	23 min
Apr 28, 6:56 PM CDT	Severe Thunderstorm Warning	HUN	Madison	34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.