Alert archive / Tennessee / Tornado Warnings in 2016

Tornado Warning 4, NWS Huntsville, AL

March 31, 2016Lincoln County, Tennessee; Limestone County, Alabama

NWS Huntsville, AL issued this tornado warning at Mar 31, 2016, 7:30 PM CDT for Lincoln County, Tennessee; Limestone County, Alabama. It was in force for 30 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
Mar 31, 2016, 7:30 PM CDT (00:30 UTC)
Expired
Mar 31, 2016, 8:00 PM CDT
In force
30 min
Issued by
NWS Huntsville, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Limestone County, AL, Lincoln County, TN

The radar

The Northeast Alabama radar (KHTX), 70 km from the middle of the area, began a volume at 00:31 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.

IssuedProductOfficeLasted
Mar 31, 5:58 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.5 hours before the alert went out and 126 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2016-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 217 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2016-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 488 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
217 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
861 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
488 m²/s²
0-3 km storm-relative helicity
602 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

668 
WFUS54 KHUN 010030
TORHUN
ALC083-TNC103-010100-
/O.NEW.KHUN.TO.W.0004.160401T0030Z-160401T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
730 PM CDT THU MAR 31 2016

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN LIMESTONE COUNTY IN NORTH CENTRAL ALABAMA...
  SOUTHWESTERN LINCOLN COUNTY IN MIDDLE TENNESSEE...

* UNTIL 800 PM CDT
    
* AT 730 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED 7 MILES WEST OF ARDMORE...OR 13 MILES NORTH OF ATHENS...
  MOVING EAST AT 25 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* LOCATIONS IMPACTED INCLUDE...
  ARDMORE...HOLLAND GIN...CASH POINT AND BLANCHE. 

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 YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER
AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3511 8674 3499 8676 3499 8678 3489 8678
      3497 8708 3500 8708 3499 8684 3510 8683
TIME...MOT...LOC 0030Z 270DEG 22KT 3499 8698 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BCC
2 follow-up statements
257 
WWUS54 KHUN 010046
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
746 PM CDT THU MAR 31 2016

ALC083-010055-
/O.CAN.KHUN.TO.W.0004.000000T0000Z-160401T0100Z/
LIMESTONE AL-
746 PM CDT THU MAR 31 2016

...THE TORNADO WARNING FOR NORTHEASTERN LIMESTONE COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS SHIFTED
NORTHWARD INTO TENNESSEE. THEREFORE THE WARNING FOR LIMESTONE
COUNTY HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR NORTH CENTRAL
ALABAMA...AND CENTRAL TENNESSEE.

LAT...LON 3511 8674 3499 8676 3499 8684 3510 8683
TIME...MOT...LOC 0045Z 270DEG 22KT 3499 8686 

$$

TNC103-010100-
/O.CON.KHUN.TO.W.0004.000000T0000Z-160401T0100Z/
LINCOLN TN-
746 PM CDT THU MAR 31 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR
SOUTHWESTERN LINCOLN COUNTY...
    
AT 745 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 2 MILES NORTH OF ARDMORE...MOVING EAST AT 25 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

LOCATIONS IMPACTED INCLUDE...
ARDMORE...CASH POINT AND BLANCHE. 

LAT...LON 3511 8674 3499 8676 3499 8684 3510 8683
TIME...MOT...LOC 0045Z 270DEG 22KT 3499 8686 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BCC
525 
WWUS54 KHUN 010057
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
757 PM CDT THU MAR 31 2016

TNC103-010107-
/O.EXP.KHUN.TO.W.0004.000000T0000Z-160401T0100Z/
LINCOLN TN-
757 PM CDT THU MAR 31 2016

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR NORTH CENTRAL
ALABAMA...AND CENTRAL TENNESSEE.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
EASTERN LINCOLN COUNTY.

LAT...LON 3511 8674 3499 8676 3499 8684 3510 8683
TIME...MOT...LOC 0054Z 270DEG 22KT 3499 8686 

$$

BCC

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 31, 7:17 PM CDTTornado Warning Tornado observedHUNLincoln28 min
Mar 31, 7:43 PM CDTSevere Thunderstorm WarningHUNFranklin, Lincoln, Moore32 min
Mar 31, 8:06 PM CDTSevere Thunderstorm WarningHUNFranklin24 min
Mar 31, 8:31 PM CDTSpecial Weather StatementHUNFranklin, Lincoln59 min
Mar 31, 8:55 PM CDTFlash Flood WarningHUNFranklin, Lincoln, Moore3 hr
Mar 31, 9:13 PM CDTSpecial Weather StatementHUNFranklin, Lincoln47 min
Mar 31, 9:18 PM CDTSevere Thunderstorm WarningHUNLincoln, Moore27 min
Mar 31, 9:39 PM CDTSevere Thunderstorm WarningHUNFranklin, Lincoln36 min
Mar 31, 10:00 PM CDTTornado WarningHUNFranklin30 min
Mar 31, 11:57 PM CDTAreal Flood WarningHUNFranklin, Lincoln, Moore3 hr
Apr 1, 8:29 AM CDTRiver Flood WarningHUNFranklin, Lincoln11 hr
Apr 1, 9:21 AM CDTAreal Flood WarningHUNFranklin10 hr
Mar 31, 7:08 PM CDTSpecial Weather StatementHUNFranklin52 min
Mar 31, 7:22 PM CDTSpecial Weather StatementHUNLawrence23 min
Mar 31, 7:31 PM CDTSevere Thunderstorm WarningHUNLawrence29 min
Mar 31, 7:50 PM CDTSpecial Weather StatementHUNFranklin25 min
Mar 31, 7:55 PM CDTSevere Thunderstorm WarningHUNLawrence, Limestone, Morgan23 min
Mar 31, 7:58 PM CDTSevere Thunderstorm WarningHUNColbert, Lauderdale13 min
Mar 31, 8:25 PM CDTSpecial Weather StatementHUNMorgan35 min
Mar 31, 8:35 PM CDTTornado WarningHUNLawrence, Morgan25 min
Mar 31, 8:38 PM CDTSpecial Weather StatementHUNMarshall37 min
Mar 31, 8:55 PM CDTTornado WarningHUNLimestone, Madison, Morgan35 min
Mar 31, 9:24 PM CDTTornado WarningHUNMadison23 min
Mar 31, 9:31 PM CDTSpecial Weather StatementHUNLimestone29 min
Mar 31, 9:35 PM CDTTornado WarningHUNMadison12 min
Mar 31, 10:25 PM CDTSpecial Weather StatementHUNJackson35 min

Nearby

Tornado Warnings in Tennessee, 2016Tornado Warnings in Alabama, 2016Every tornado warning in 2016Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.