Alert archive / Tennessee / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Nashville, TN

April 27, 20164 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Apr 27, 2016, 4:54 PM CDT for 4 counties in Tennessee. It was in force for 45 min. 2 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 27, 2016, 4:54 PM CDT (21:54 UTC)
Expired: Apr 27, 2016, 5:39 PM CDT
In force: 45 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dickson County, TN, Houston County, TN, Montgomery County, TN, Stewart County, TN

The radar

The Ft Campbell radar (KHPX), 38 km from the middle of the area, began a volume at 21:58 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 27, 5:09 PM CDT	TSTM WND DMG	4 Sse Palmyra, TN	TREE DOWN IN ROAD AT JIM KIM RD AND HIGHWAY 13.
Apr 27, 5:25 PM CDT	TSTM WND DMG	1 Se Clarksville, TN	TREE DOWN ON ELDER STREET IN CLARKSVILLE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.9 hours before the alert went out and 86 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: 669 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

987 
WUUS54 KOHX 272154
SVROHX
TNC043-083-125-161-272300-
/O.NEW.KOHX.SV.W.0021.160427T2154Z-160427T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
454 PM CDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  STEWART COUNTY IN MIDDLE TENNESSEE...
  HOUSTON COUNTY IN MIDDLE TENNESSEE...
  MONTGOMERY COUNTY IN MIDDLE TENNESSEE...
  NORTHWESTERN DICKSON COUNTY IN MIDDLE TENNESSEE...

* UNTIL 600 PM CDT

* AT 453 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 8 MILES SOUTHWEST OF DOVER TO 7 MILES NORTHEAST OF
  MCEWEN...MOVING NORTHEAST AT 40 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...
  CLARKSVILLE...DOVER...ERIN...TENNESSEE RIDGE...BIG ROCK...VANLEER...
  CUMBERLAND CITY...SLAYDEN...HOUSTON COUNTY AIRPORT...INDIAN MOUND...
  PALMYRA...WOODLAWN AND CUNNINGHAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING ARE OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3664 8786 3663 8785 3664 8711 3656 8714
      3655 8713 3655 8712 3647 8713 3635 8728
      3632 8728 3618 8757 3620 8759 3620 8766
      3622 8770 3633 8797
TIME...MOT...LOC 2153Z 213DEG 33KT 3637 8793 3619 8755 

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

SHAMBURGER

3 follow-up statements

229 
WWUS54 KOHX 272214
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
514 PM CDT WED APR 27 2016

TNC043-083-272224-
/O.CAN.KOHX.SV.W.0021.000000T0000Z-160427T2300Z/
HOUSTON TN-DICKSON TN-
514 PM CDT WED APR 27 2016

...THE SEVERE THUNDERSTORM WARNING FOR HOUSTON AND NORTHWESTERN
DICKSON COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3664 8786 3663 8785 3664 8711 3662 8713
      3661 8712 3656 8714 3655 8713 3655 8712
      3647 8713 3635 8728 3632 8729 3634 8757
      3637 8759 3650 8791
TIME...MOT...LOC 2214Z 214DEG 33KT 3657 8775 3639 8737 

$$

TNC125-161-272300-
/O.CON.KOHX.SV.W.0021.000000T0000Z-160427T2300Z/
STEWART TN-MONTGOMERY TN-
514 PM CDT WED APR 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR NORTHEASTERN STEWART AND MONTGOMERY COUNTIES...

AT 514 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BIG ROCK TO 11 MILES SOUTH OF CLARKSVILLE...MOVING
NORTHEAST AT 40 MPH.

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

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
DOVER...CLARKSVILLE...BIG ROCK...CUMBERLAND CITY...PALMYRA...WOODLAWN...
INDIAN MOUND AND CUNNINGHAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3664 8786 3663 8785 3664 8711 3662 8713
      3661 8712 3656 8714 3655 8713 3655 8712
      3647 8713 3635 8728 3632 8729 3634 8757
      3637 8759 3650 8791
TIME...MOT...LOC 2214Z 214DEG 33KT 3657 8775 3639 8737 

HAIL...0.75IN
WIND...60MPH
 
$$

SHAMBURGER

672 
WWUS54 KOHX 272225
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
525 PM CDT WED APR 27 2016

TNC161-272234-
/O.CAN.KOHX.SV.W.0021.000000T0000Z-160427T2300Z/
STEWART TN-
525 PM CDT WED APR 27 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STEWART COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED. THEREFORE THE
WARNING HAS BEEN CANCELLED.

LAT...LON 3662 8713 3661 8712 3656 8714 3655 8713
      3655 8712 3647 8713 3635 8728 3645 8761
      3663 8764 3664 8711
TIME...MOT...LOC 2224Z 215DEG 40KT 3664 8762 3654 8727 

$$

TNC125-272300-
/O.CON.KOHX.SV.W.0021.000000T0000Z-160427T2300Z/
MONTGOMERY TN-
525 PM CDT WED APR 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR MONTGOMERY COUNTY...

AT 524 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BIG ROCK TO NEAR CLARKSVILLE... MOVING NORTHEAST AT
45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CLARKSVILLE...PALMYRA...CUNNINGHAM AND WOODLAWN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3662 8713 3661 8712 3656 8714 3655 8713
      3655 8712 3647 8713 3635 8728 3645 8761
      3663 8764 3664 8711
TIME...MOT...LOC 2224Z 215DEG 40KT 3664 8762 3654 8727 

HAIL...<.75IN
WIND...60MPH
 
$$

SHAMBURGER

067 
WWUS54 KOHX 272239
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
539 PM CDT WED APR 27 2016

TNC125-272249-
/O.CAN.KOHX.SV.W.0021.000000T0000Z-160427T2300Z/
MONTGOMERY TN-
539 PM CDT WED APR 27 2016

...THE SEVERE THUNDERSTORM WARNING FOR MONTGOMERY COUNTY IS
CANCELLED...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND HAVE EXITED THE WARNED AREA. THEREFORE THE WARNING HAS
BEEN CANCELLED.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
NASHVILLE.

LAT...LON 3662 8713 3661 8712 3656 8714 3655 8713
      3655 8712 3647 8713 3635 8728 3645 8761
      3663 8764 3664 8711
TIME...MOT...LOC 2236Z 213DEG 33KT 3674 8754 3664 8719 

$$

SHAMBURGER

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 26, 7:22 PM CDT	Special Weather Statement	OHX	Stewart	38 min
Apr 26, 7:50 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Stewart	25 min
Apr 26, 8:30 PM CDT	Special Weather Statement	OHX	Houston, Stewart	45 min
Apr 27, 12:15 AM CDT	Special Weather Statement	OHX	Dickson	45 min
Apr 27, 4:05 PM CDT	Special Weather Statement	OHX	Humphreys	40 min
Apr 27, 4:24 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Humphreys	36 min
Apr 27, 5:17 PM CDT	Special Weather Statement	OHX	Cheatham, Dickson	28 min
Apr 27, 5:38 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson, Robertson, Williamson	37 min
Apr 27, 6:11 PM CDT	Special Weather Statement	OHX	Sumner, Wilson	64 min
Apr 27, 6:46 PM CDT	Special Weather Statement	OHX	Bedford, Rutherford	59 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.