Alert archive / Tennessee / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 13, NWS Huntsville, AL

March 31, 2016Franklin County, Lincoln County, Tennessee

NWS Huntsville, AL issued this severe thunderstorm warning at Mar 31, 2016, 9:39 PM CDT for Franklin County, Lincoln County, Tennessee. It was in force for 36 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, 9:39 PM CDT (02:39 UTC)
Expired: Mar 31, 2016, 10:15 PM CDT
In force: 36 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Franklin County, TN, Lincoln County, TN

The radar

The Northeast Alabama radar (KHTX), 27 km from the middle of the area, began a volume at 02:39 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
Mar 31, 5:58 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.7 hours before the alert went out and 117 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: 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.

825 
WUUS54 KHUN 010239
SVRHUN
TNC051-103-010315-
/O.NEW.KHUN.SV.W.0013.160401T0239Z-160401T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
939 PM CDT THU MAR 31 2016

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN LINCOLN COUNTY IN MIDDLE TENNESSEE...
  SOUTHWESTERN FRANKLIN COUNTY IN MIDDLE TENNESSEE...

* UNTIL 1015 PM CDT

* AT 939 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HUNTLAND...OR
  13 MILES SOUTHEAST OF FAYETTEVILLE...MOVING EAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  WINCHESTER...COWAN...HUNTLAND...BELVIDERE...SMITHLAND...LEXIE
  CROSSROADS...MAXWELL AND BEANS CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

&&

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

LAT...LON 3499 8604 3502 8640 3515 8640 3515 8637
      3512 8636 3515 8635 3513 8635 3512 8632
      3513 8631 3514 8633 3515 8632 3516 8632
      3518 8604
TIME...MOT...LOC 0239Z 268DEG 31KT 3507 8635 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

BCC

2 follow-up statements

538 
WWUS54 KHUN 010249
SVSHUN

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

TNC103-010259-
/O.CAN.KHUN.SV.W.0013.000000T0000Z-160401T0315Z/
LINCOLN TN-
949 PM CDT THU MAR 31 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LINCOLN COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE COUNTY. THEREFORE THE WARNING HAS BEEN CANCELLED.

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

LAT...LON 3499 8604 3502 8628 3516 8627 3518 8604
TIME...MOT...LOC 0249Z 267DEG 33KT 3507 8622 

$$

TNC051-010315-
/O.CON.KHUN.SV.W.0013.000000T0000Z-160401T0315Z/
FRANKLIN TN-
949 PM CDT THU MAR 31 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHWESTERN FRANKLIN COUNTY...

AT 949 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HUNTLAND...OR 9
MILES SOUTHWEST OF WINCHESTER...MOVING EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
WINCHESTER...COWAN...HUNTLAND...BELVIDERE...MAXWELL AND BEANS CREEK. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 3499 8604 3502 8628 3516 8627 3518 8604
TIME...MOT...LOC 0249Z 267DEG 33KT 3507 8622 

HAIL...1.00IN
WIND...60MPH
 
$$

BCC

809 
WWUS54 KHUN 010257
SVSHUN

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

TNC051-010315-
/O.CON.KHUN.SV.W.0013.000000T0000Z-160401T0315Z/
FRANKLIN TN-
957 PM CDT THU MAR 31 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTH CENTRAL FRANKLIN COUNTY...

AT 957 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WINCHESTER...
MOVING EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
WINCHESTER...COWAN AND BELVIDERE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

&&

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

LAT...LON 3502 8604 3506 8621 3514 8621 3518 8604
TIME...MOT...LOC 0257Z 263DEG 31KT 3510 8614 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

BCC

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 7:17 PM CDT	Tornado Warning Tornado observed	HUN	Lincoln	28 min
Mar 31, 7:30 PM CDT	Tornado Warning	HUN	Lincoln	30 min
Mar 31, 7:43 PM CDT	Severe Thunderstorm Warning	HUN	Franklin, Lincoln, Moore	32 min
Mar 31, 8:06 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	24 min
Mar 31, 8:31 PM CDT	Special Weather Statement	HUN	Franklin, Lincoln	59 min
Mar 31, 8:55 PM CDT	Flash Flood Warning	HUN	Franklin, Lincoln, Moore	3 hr
Mar 31, 9:13 PM CDT	Special Weather Statement	HUN	Franklin, Lincoln	47 min
Mar 31, 9:18 PM CDT	Severe Thunderstorm Warning	HUN	Lincoln, Moore	27 min
Mar 31, 10:00 PM CDT	Tornado Warning	HUN	Franklin	30 min
Mar 31, 11:57 PM CDT	Areal Flood Warning	HUN	Franklin, Lincoln, Moore	3 hr
Apr 1, 8:29 AM CDT	River Flood Warning	HUN	Franklin, Lincoln	11 hr
Apr 1, 9:21 AM CDT	Areal Flood Warning	HUN	Franklin	10 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2016 Every severe thunderstorm warning 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.