Alert archive / Tennessee / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 131, NWS Nashville, TN

July 14, 2015Davidson County, Rutherford County, Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 14, 2015, 2:56 PM CDT for Davidson County, Rutherford County, Williamson County, Tennessee. It was in force for 34 min. 3 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: Jul 14, 2015, 2:56 PM CDT (19:56 UTC)
Expired: Jul 14, 2015, 3:30 PM CDT
In force: 34 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Davidson County, TN, Rutherford County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 36 km from the middle of the area, began a volume at 19:56 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
Jul 14, 3:05 PM CDT	TSTM WND DMG	2 Nne La Vergne, TN	3 TREES BLOWN DOWN WITH ONE ON A HOUSE AT STONES RIVER ROAD AT LAVERGNE LANE
Jul 14, 3:25 PM CDT	TSTM WND DMG	Smyrna, TN	TREE BLOWN DOWN IN HOME BACKYARD IN SMYRNA
Jul 14, 3:34 PM CDT	TSTM WND DMG	S La Vergne, TN	TREE DOWN IN LAKE FORREST ESTATES AREA

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 9 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 14, 1:46 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.9 hours before the alert went out and 27 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: 1670 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 991 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

061 
WUUS54 KOHX 141956
SVROHX
TNC037-149-187-142030-
/O.NEW.KOHX.SV.W.0131.150714T1956Z-150714T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
256 PM CDT TUE JUL 14 2015

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN DAVIDSON COUNTY IN MIDDLE TENNESSEE...
  NORTHEASTERN WILLIAMSON COUNTY IN MIDDLE TENNESSEE...
  CENTRAL RUTHERFORD COUNTY IN MIDDLE TENNESSEE...

* UNTIL 330 PM CDT

* AT 255 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  NOLENSVILLE...OR 10 MILES EAST OF FRANKLIN...MOVING EAST AT 30 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. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  MURFREESBORO AROUND 315 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
LASCASSAS...TRIUNE AND CHRISTIANA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3600 8634 3599 8633 3599 8631 3598 8631
      3597 8626 3596 8626 3570 8639 3588 8677
      3606 8667
TIME...MOT...LOC 1955Z 291DEG 28KT 3594 8665 

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

SHAMBURGER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 14, 12:43 PM CDT, 2 hours 13 minutes earlier.

Area forecast discussion, Jul 14, 12:43 PM CDT, 2 hours 13 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1243 PM CDT TUE JUL 14 2015

.AVIATION UPDATE...

MAIN CONCERN FOR THE TAF PERIOD WILL BE STORMS THIS AFTERNOON
PARTICULARLY FOR BNA AND CSV. PLACED TEMPO GROUP AT THOSE TWO
TERMINALS AND LEFT VCTS AT CKV DUE TO LOWER PROBABILITY. SFC FRONT
AND ASSOCIATED WIND SHIFT WILL SLOWLY MOVE SOUTH THROUGHOUT THE
OVERNIGHT HOURS. LOW CIGS AND VIS WILL BE AN ISSUE FOR THE AREAS
THAT SEE RAIN THIS EVENING. DROPPED BNA TO MVFR AND CSV TO LIFR.
CONDITIONS WILL IMPROVE BY MID MORNING TOMORROW. BEHIND THE FRONT
WINDS WILL BE OUT OF THE NORTH TOMORROW AT 5-10 KTS.

REAGAN

&&

.PREV DISCUSSION... /ISSUED 1045 AM CDT TUE JUL 14 2015/

UPDATE...

A WARM, MUGGY AIR MASS CURRENTLY RESIDES OVER MIDDLE TN AHEAD OF
A WEAK SFC FRONT THAT WILL SLIDE SE THROUGHOUT THE DAY TOWARD THE
AREA. MORNING CONVECTION THAT AFFECTED THE NORTHEASTERN COUNTIES
HAS NOW MOVED EAST INTO MRX'S CWA. ACROSS MIDDLE TN AN ALREADY
UNSTABLE ENVIRONMENT EXISTS WITH 2000-3000 J/KG OF MLCAPE AND A
WEAK SFC BASED CAP.  BY 18Z 3500-4000 J/KG OF MLCAPE WILL BE IN
PLACE WITH NO CIN REMAINING. STORMS COULD INITIATE ALONG ANY
RESIDUAL OUTFLOW BOUNDARIES PARTICULARLY TOWARD THE PLATEAU FROM
THE MORNING CONVECTION. HRRR HAS BEEN CONSISTENTLY PRODUCING
CONVECTION BY EARLY AFTERNOON ALONG THE I-40 CORRIDOR AND THEN
PUSHING SOUTH. ANOTHER ROUND OF STORMS IS POSSIBLE LATER THIS
EVENING AFTER 00Z ASSOCIATED WITH THE SFC FRONT. ALL MODES OF
SEVERE WEATHER ARE POSSIBLE TODAY. THE 12Z OHX RAOB INDICATED 40
KTS OF EFFECTIVE BULK SHEAR WHICH IS SUFFICIENT TO SUPPORT
ROTATING UPDRAFTS CAPABLE OF PRODUCING LARGE HAIL DESPITE A WARM
THERMAL PROFILE. THE TORNADO THREAT WOULD BE MORE CONDITIONAL ON
INTERACTIONS WITH RESIDUAL OUTFLOW BOUNDARIES. DAMAGING WINDS WILL
BECOME THE DOMINANT THREAT ONCE COLD POOLS CONGEAL AND LINE
SEGMENTS BECOME THE MODE OF CHOICE.

AS FAR AS THE GRIDS...FORECAST LOOKS IN GOOD SHAPE. ONLY MINOR
TWEAKS WERE MADE.

REAGAN

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      74  91  70  91 /  50  20  10  10
CLARKSVILLE    73  89  69  90 /  50  20  10  10
CROSSVILLE     69  84  65  84 /  60  20  10  10
COLUMBIA       74  93  70  92 /  50  30  10  10
LAWRENCEBURG   74  93  70  92 /  50  30  10  10
WAVERLY        74  91  70  91 /  50  20  10  10

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

10

Hazardous weather outlook, Jul 14, 5:00 AM CDT, 9 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
500 AM CDT TUE JUL 14 2015

TNZ005>011-023>034-056>066-075-077>080-093>095-151000-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-HOUSTON-
HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-SMITH-
JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-WILLIAMSON-
MAURY-MARSHALL-RUTHERFORD-CANNON-DE KALB-WHITE-CUMBERLAND-BEDFORD-
COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-GILES-
500 AM CDT TUE JUL 14 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE
TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS MIDDLE TENNESSEE
THROUGH TONIGHT. MAIN CONCERNS WITH SEVERE THUNDERSTORMS THAT
DO OCCUR WILL BE LARGE HAIL...DAMAGING WINDS...AND ISOLATED
TORNADOES.

FOR LOCATIONS WEST OF THE CUMBERLAND PLATEAU REGION...
AFTERNOON HEAT INDEX VALUES TODAY WILL RANGE FROM 100 TO
105 DEGREES.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

FOR LOCATIONS WEST OF THE CUMBERLAND PLATEAU REGION...
AFTERNOON HEAT INDEX VALUES WILL RANGE FROM 100 TO 105
DEGREES FRIDAY AFTERNOON THROUGH MONDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVIATION WILL LIKELY BE NEEDED TODAY AND TONIGHT.

SPOTTER THUNDERSTORM REPORTING CRITERIA...
TORNADO
FUNNEL CLOUD
FLOODING
HAIL >= 1/2 INCH
WINDS > 50 MPH (MEASURED)
STRUCTURAL DAMAGE
TREES OR POWER LINES DOWN

31

In the hours before

Local storm report, Jul 14, 2:41 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
241 PM CDT TUE JUL 14 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     HAIL             E COOKEVILLE            36.16N  85.51W
07/14/2015  M1.00 INCH       PUTNAM             TN   BROADCAST MEDIA

            QUARTER SIZED HAIL REPORTED NEAR COOKEVILLE.

&&

EVENT NUMBER OHX1500665

MD

Local storm report, Jul 14, 2:44 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
244 PM CDT TUE JUL 14 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0218 PM     TSTM WND DMG     N LIVINGSTON            36.39N  85.33W
07/14/2015                   OVERTON            TN   EMERGENCY MNGR

            MULTIPLE POWER LINES DOWN ALONG WITH POWER OUTAGES AND
            TREES DOWN ACROSS OVERTON COUNTY.

&&

EVENT NUMBER OHX1500666

MD

Local storm report, Jul 14, 2:45 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
245 PM CDT TUE JUL 14 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0245 PM     HAIL             W MONTEREY              36.13N  85.24W
07/14/2015  M1.00 INCH       PUTNAM             TN   TRAINED SPOTTER

            QUARTER SIZE HAIL REPORTED IN MONTEREY

&&

EVENT NUMBER OHX1500667

MD

Local storm report, Jul 14, 2:53 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
253 PM CDT TUE JUL 14 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0249 PM     FUNNEL CLOUD     4 W COOKEVILLE          36.16N  85.58W
07/14/2015                   PUTNAM             TN   FIRE DEPT/RESCUE

            FUNNEL CLOUD REPORTED ALONG HIGHWAY 70 AT DOUBLE
            SPRINGS ROAD WEST OF COOKEVILLE.

&&

EVENT NUMBER OHX1500668

MD

Local storm report, Jul 14, 2:54 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
254 PM CDT TUE JUL 14 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0251 PM     TSTM WND DMG     2 NW LEBANON            36.23N  86.35W
07/14/2015                   WILSON             TN   EMERGENCY MNGR

            TREES UPROOTED AND POWER LINES DOWN NEAR LEBANON NEAR
            COLES FERRY ROAD AND BEREA CHURCH ROAD AND ACADEMY ROAD

&&

EVENT NUMBER OHX1500669

MD

Local storm report, Jul 14, 2:56 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
256 PM CDT TUE JUL 14 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0253 PM     FUNNEL CLOUD     3 SE LEBANON            36.18N  86.28W
07/14/2015                   WILSON             TN   TRAINED SPOTTER

            FUNNEL CLOUD REPORTED SE OF LEBANON

&&

EVENT NUMBER OHX1500670

MD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 7:16 PM CDT	Tornado Warning	OHX	Clay	29 min
Jul 14, 7:09 AM CDT	Special Weather Statement	OHX	Fentress, Pickett	51 min
Jul 14, 7:59 AM CDT	Special Weather Statement	OHX	Fentress	46 min
Jul 14, 12:50 PM CDT	Special Weather Statement	OHX	Fentress	25 min
Jul 14, 1:16 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	44 min
Jul 14, 1:26 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Overton	49 min
Jul 14, 1:34 PM CDT	Tornado Warning	OHX	Fentress, Pickett	26 min
Jul 14, 1:40 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Overton, Pickett	39 min
Jul 14, 1:54 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam	39 min
Jul 14, 1:57 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	28 min
Jul 14, 2:02 PM CDT	Special Weather Statement	OHX	Dickson, Humphreys	43 min
Jul 14, 2:04 PM CDT	Tornado Warning	OHX	Fentress	26 min
Jul 14, 2:16 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Williamson	17 min
Jul 14, 2:18 PM CDT	Special Weather Statement	OHX	Davidson, Trousdale, Wilson	42 min
Jul 14, 2:23 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys	37 min
Jul 14, 2:31 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Williamson	29 min
Jul 14, 2:32 PM CDT	Special Weather Statement	OHX	Cumberland	43 min
Jul 14, 2:40 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Trousdale, Wilson	23 min
Jul 14, 2:41 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Williamson	34 min
Jul 14, 2:42 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Overton, Putnam, White	33 min
Jul 14, 2:53 PM CDT	Tornado Warning	OHX	Cumberland, Putnam, White	27 min
Jul 14, 2:58 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Perry	32 min
Jul 14, 3:00 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	30 min
Jul 14, 3:01 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Wilson	29 min
Jul 14, 3:11 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Putnam, White	49 min
Jul 14, 3:18 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Warren, White	27 min
Jul 14, 3:29 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Putnam, Van Buren, White	46 min
Jul 14, 3:32 PM CDT	Special Weather Statement	OHX	Hickman, Humphreys, Lewis, Maury, Perry	58 min
Jul 14, 3:35 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford, Wilson	25 min
Jul 14, 3:41 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Van Buren, Warren, White	34 min
Jul 14, 3:44 PM CDT	Areal Flood Advisory	OHX	Cumberland, Putnam, White	5 hr
Jul 14, 3:50 PM CDT	Areal Flood Advisory	OHX	Hickman, Humphreys, Perry	5 hr
Jul 14, 3:53 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Warren	21 min
Jul 14, 3:57 PM CDT	Tornado Warning	OHX	Cannon, Warren	13 min
Jul 14, 4:12 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Van Buren, Warren	48 min
Jul 14, 4:13 PM CDT	Special Weather Statement	OHX	Marshall	47 min
Jul 14, 4:26 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall, Maury	34 min
Jul 14, 4:59 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy	35 min
Jul 14, 5:04 PM CDT	Special Weather Statement	OHX	Giles, Lawrence, Wayne	56 min
Jul 14, 5:18 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	42 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2015 Every severe thunderstorm warning in 2015

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.