Alert archive / Tennessee / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 143, NWS Nashville, TN

July 14, 2015Coffee County, Grundy County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 14, 2015, 4:59 PM CDT for Coffee County, Grundy County, Tennessee. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 14, 2015, 4:59 PM CDT (21:59 UTC)
Expired: Jul 14, 2015, 5:34 PM CDT
In force: 35 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Coffee County, TN, Grundy County, TN

The radar

The Northeast Alabama radar (KHTX), 59 km from the middle of the area, began a volume at 22:02 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
Jul 14, 1:46 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.0 hours before the alert went out and 99 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

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, 3:28 PM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Jul 14, 3:28 PM CDT, 1 hour 31 minutes before

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

.DISCUSSION...LINE OF STRONG TO SEVERE STORMS IS CURRENTLY WORKING
ITS WAY SOUTHWARD THROUGH MIDDLE TENNESSEE, WITH COPIOUS REPORTS
OF HAIL AND WIND DAMAGE ALREADY POURING IN. SEVERE THUNDERSTORM
WATCH REMAINS IN EFFECT UNTIL 9 PM FOR ALL OF MIDDLE TENNESSEE,
ALTHOUGH FOR AT LEAST THE NEXT COUPLE OF HOURS AREAS SOUTH OF I-40
WILL BE HARDEST HIT. HRRR SHOWS THE CURRENT LINE OF STORMS MOVING
INTO NORTHERN ALABAMA BY 23Z, WITH ADDITIONAL SCATTERED CELLS RE-
DEVELOPING OVER MUCH OF THE MID STATE WELL INTO THE EVENING. LOOK
FOR THE SURFACE FRONT CURRENTLY LOCATED TO OUR NORTH TO MOVE
SOUTHWARD THROUGH MIDDLE TENNESSEE OVERNIGHT AND TOMORROW MORNING,
USHERING IN DRIER (BUT NOT MUCH COOLER) WEATHER OVER THE NEXT
COUPLE OF DAYS. BY FRIDAY, TEMPERATURES WILL BE BACK WHERE THEY
WERE, WITH HEAT INDICES RETURNING TO THE LOW 100'S, JUST SHY OF
HEAT ADVISORY CRITERIA.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      73  91  70  91 /  50  20  10  10
CLARKSVILLE    72  89  69  90 /  50  20  10  10
CROSSVILLE     68  84  65  84 /  60  20  10  10
COLUMBIA       73  93  70  92 /  50  30  10  10
LAWRENCEBURG   73  93  70  92 /  50  30  10  10
WAVERLY        73  91  70  91 /  50  20  10  10

&&

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

&&

ROSE

Hazardous weather outlook, Jul 14, 5:00 AM CDT, 11 hours 59 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, 4:03 PM CDT, 56 minutes before

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

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

0401 PM     TSTM WND DMG     7 W SPARTA              35.93N  85.60W
07/14/2015                   WHITE              TN   AMATEUR RADIO

            TREES DOWN ON POWER LINES BLOCKING ROAD ON WILL
            THOMPSON ROAD

&&

EVENT NUMBER OHX1500683

MD

Local storm report, Jul 14, 4:05 PM CDT, 54 minutes before

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

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

0354 PM     TSTM WND DMG     5 NW SMYRNA             36.03N  86.58W
07/14/2015                   DAVIDSON           TN   TWITTER

            TREE DOWN ON RESIDENCE ALONG LAVERGNE LANE

&&

EVENT NUMBER OHX1500684

MD

Special weather statement, Jul 14, 4:13 PM CDT, 46 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
413 PM CDT TUE JUL 14 2015

TNZ060-061-075-095-142200-
MARSHALL TN-BEDFORD TN-GILES TN-MAURY TN-
413 PM CDT TUE JUL 14 2015

...SIGNIFICANT WEATHER ADVISORY FOR MARSHALL...SOUTHWESTERN
BEDFORD...SOUTHEASTERN MAURY AND NORTHEASTERN GILES COUNTIES UNTIL
500 PM CDT...

AT 412 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES NORTHWEST OF LEWISBURG...MOVING SOUTHEAST AT 30 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
COLUMBIA...SHELBYVILLE...LEWISBURG...MOUNT PLEASANT...CHAPEL HILL...
CORNERSVILLE...LYNNVILLE...BELFAST...I-65 EAST OF COLUMBIA...
FRANKEWING...FARMINGTON AND CULLEOKA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FOR
CENTRAL TENNESSEE.

LAT...LON 3517 8686 3555 8721 3569 8678 3546 8646
      3525 8675 3526 8683 3519 8683
TIME...MOT...LOC 2112Z 309DEG 26KT 3551 8690

MR3

Local storm report, Jul 14, 4:14 PM CDT, 45 minutes before

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

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

0407 PM     TSTM WND DMG     8 WNW SPARTA            35.98N  85.61W
07/14/2015                   WHITE              TN   FIRE DEPT/RESCUE

            NUMEROUS REPORTS OF MULTIPLE TREES DOWN IN THE WEST END
            OF WHITE COUNTY

&&

EVENT NUMBER OHX1500685

MD

Local storm report, Jul 14, 4:24 PM CDT, 35 minutes before

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

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

0421 PM     TSTM WND DMG     9 NW MCMINNVILLE        35.78N  85.89W
07/14/2015                   WARREN             TN   911 CALL CENTER

            REPORTS OF TREES DOWN ALONG OLD NASHVILLE HWY
            SHELBYVILLE ROAD AND SHORT MOUNTAIN AT WEST GREEN HILL
            ROAD

&&

EVENT NUMBER OHX1500686

MD

Local storm report, Jul 14, 4:30 PM CDT, 29 minutes before

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

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

0250 PM     HAIL             COOKEVILLE              36.16N  85.51W
07/14/2015  E2.50 INCH       PUTNAM             TN   FACEBOOK

            FACEBOOK PHOTO OF TENNIS BALL SIZE HAIL IN COOKEVILLE

&&

EVENT NUMBER OHX1500687

SHAMBURGER

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, 2:56 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson	34 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.