Alert archive / Tennessee / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 120, NWS Nashville, TN

June 28, 2018Giles County, Marshall County, Maury County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 28, 2018, 11:48 AM CDT for Giles County, Marshall County, Maury County, Tennessee. It was in force for 42 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: Jun 28, 2018, 11:48 AM CDT (16:48 UTC)
Expired: Jun 28, 2018, 12:30 PM CDT
In force: 42 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Giles County, TN, Marshall County, TN, Maury County, TN

The radar

The Northeast Alabama radar (KHTX), 97 km from the middle of the area, began a volume at 16:51 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
Jun 28, 10:46 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 4.8 hours before the alert went out and 84 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: 2274 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1063 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 251 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 11.7

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 Jun 28, 9:34 AM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, Jun 28, 9:34 AM CDT, 2 hours 14 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
934 AM CDT Thu Jun 28 2018

.UPDATE...
FOR MORNING DISCUSSION.

&&

.DISCUSSION...

Now that the morning line of convection has developed, made some
minor adjustments to our PoPs for today, extending the band of
likely PoPs a bit further north toward Nashville. Otherwise, no
change to previous forecast.

&&

.AVIATION...
12Z TAF DISCUSSION.

One more active day expected today as a weak boundary passes.
Convection already occurring CSV vcnty expected to spread west
in the mid/late morning. Storms could affect all sites by 18z.
CIGs/VSBYs behind the precip will improve rapidly but MVFR/IFR
level fog likely to develop late night.

&&

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

&&

DISCUSSION......19
AVIATION........Shamburger

Hazardous weather outlook, Jun 28, 11:05 AM CDT, 43 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
1105 AM CDT Thu Jun 28 2018

TNZ005>011-023>034-056>066-075-077>080-093>095-291100-
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-
1105 AM CDT Thu Jun 28 2018

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...This Afternoon and Tonight

A few severe thunderstorms will be possible across southern and
western sections of Middle Tennessee. The main concern will be
damaging straight line winds, large hail and localized flooding.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Excessive heat is likely Friday and Saturday...and hot weather
safety will be a paramount concern.

.SPOTTER INFORMATION STATEMENT...

Spotter and public reports are welcome today, and can be passed
along either by social media or by calling the National Weather
Service.

19

In the hours before

Special weather statement, Jun 28, 11:19 AM CDT, 29 minutes before

Special Weather Statement
National Weather Service Nashville TN
1119 AM CDT THU JUN 28 2018

TNZ025>027-059-281645-
Williamson TN-Dickson TN-Davidson TN-Cheatham TN-
1119 AM CDT THU JUN 28 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DAVIDSON...EASTERN
DICKSON...NORTHWESTERN WILLIAMSON AND SOUTH CENTRAL CHEATHAM COUNTIES
UNTIL 1145 AM CDT...

At 1119 AM CDT, Doppler radar was tracking a strong thunderstorm near
White Bluff, or 9 miles northeast of Dickson, moving southeast at 25
mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
White Bluff, Kingston Springs, Pegram, Fairview, Bellevue, Charlotte
and Natchez Trace At Highway 96.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
Middle Tennessee.

LAT...LON 3613 8738 3628 8726 3613 8687 3590 8705
TIME...MOT...LOC 1619Z 302DEG 21KT 3617 8725

Shamburger

Special weather statement, Jun 28, 11:22 AM CDT, 26 minutes before

Special Weather Statement
National Weather Service Nashville TN
1122 AM CDT THU JUN 28 2018

TNZ005-006-023-024-281700-
Stewart TN-Humphreys TN-Montgomery TN-Houston TN-
1122 AM CDT THU JUN 28 2018

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN MONTGOMERY...STEWART...
HOUSTON AND NORTHWESTERN HUMPHREYS COUNTIES UNTIL NOON CDT...

At 1122 AM CDT, Doppler radar was tracking strong thunderstorms
along a line extending from Land Between The Lakes Area to near
Cottage Grove. Movement was southeast at 55 mph.

Half inch hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Waverly, Camden, Dover, Erin, Clarksville, New Johnsonville,
Tennessee Ridge, Big Rock, Cumberland City, Palmyra, Woodlawn,
Houston County Airport, Land Between The Lakes and Indian Mound.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
Middle Tennessee.

LAT...LON 3666 8785 3663 8785 3664 8723 3591 8793
      3594 8793 3595 8801 3603 8800 3612 8792
      3617 8792 3622 8795 3631 8796 3645 8806
      3656 8803 3668 8807
TIME...MOT...LOC 1622Z 299DEG 49KT 3672 8816 3635 8845

Shamburger

Local storm report, Jun 28, 11:31 AM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1131 AM CDT THU JUN 28 2018

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

1104 AM     TSTM WND DMG     7 SSE ROVER             35.57N  86.57W
06/28/2018                   BEDFORD            TN   TRAINED SPOTTER

            TREE DAMAGE WAS REPORTED OFF OLD COLUMBIA RD IN
            UNIONVILLE.

&&

EVENT NUMBER OHX1800214

MR3

Local storm report, Jun 28, 11:35 AM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1135 AM CDT THU JUN 28 2018

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

1038 AM     TSTM WND DMG     SPRING HILL             35.74N  86.92W
06/28/2018                   MAURY              TN   EMERGENCY MNGR

            MULTIPLE REPORTS OF TREES DOWN IN SPRING HILL INCLUDING
            A TREE ON A HOUSE ON NEELY'S BEND.

&&

EVENT NUMBER OHX1800215

MR3

Local storm report, Jun 28, 11:37 AM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
1137 AM CDT THU JUN 28 2018

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

0551 AM     TSTM WND DMG     7 SE BYRDSTOWN          36.49N  85.06W
06/28/2018                   FENTRESS           TN   EMERGENCY MNGR

            TREES DOWN IN THE DOUBLE TOP AREA.

0605 AM     TSTM WND DMG     1 N ALLARDT             36.40N  84.88W
06/28/2018                   FENTRESS           TN   EMERGENCY MNGR

            TREES DOWN ON GOVERNMENT POND RD.

0730 AM     FLASH FLOOD      JAMESTOWN               36.43N  84.94W
06/28/2018                   FENTRESS           TN   EMERGENCY MNGR

            MULTIPLE ROADS WERE FLOODED AND CLOSED IN THE JAMESTOWN
            AREA.

1038 AM     TSTM WND DMG     SPRING HILL             35.74N  86.92W
06/28/2018                   MAURY              TN   EMERGENCY MNGR

            MULTIPLE REPORTS OF TREES DOWN IN SPRING HILL INCLUDING
            A TREE ON A HOUSE ON NEELY'S BEND.

1104 AM     TSTM WND DMG     7 SSE ROVER             35.57N  86.57W
06/28/2018                   BEDFORD            TN   TRAINED SPOTTER

            TREE DAMAGE WAS REPORTED OFF OLD COLUMBIA RD IN
            UNIONVILLE.

&&

EVENT NUMBER OHX1800206 OHX1800207 OHX1800208 OHX1800215 OHX1800214

MR3

Local storm report, Jun 28, 11:44 AM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1144 AM CDT THU JUN 28 2018

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

1104 AM     TSTM WND DMG     LEWISBURG               35.45N  86.79W
06/28/2018                   MARSHALL           TN   EMERGENCY MNGR

            SEVERAL REPORTS OF TREES DOWN IN LEWISBURG.

&&

EVENT NUMBER OHX1800216

MR3

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 7:55 PM CDT	Areal Flood Advisory	OHX	Coffee, Grundy, Van Buren, Warren	3 hr
Jun 27, 10:21 PM CDT	Special Weather Statement	OHX	Sumner	24 min
Jun 27, 11:00 PM CDT	Special Weather Statement	OHX	Macon, Trousdale	30 min
Jun 28, 2:06 AM CDT	Special Weather Statement	OHX	Clay, Fentress, Overton, Pickett	54 min
Jun 28, 3:11 AM CDT	Special Weather Statement	OHX	Clay, Cumberland, Fentress, Overton, Pickett	94 min
Jun 28, 4:24 AM CDT	Areal Flood Advisory	OHX	Clay, Fentress, Overton, Pickett	2 hr
Jun 28, 5:21 AM CDT	Special Weather Statement	OHX	Fentress, Pickett	39 min
Jun 28, 6:06 AM CDT	Special Weather Statement	OHX	Fentress	24 min
Jun 28, 6:25 AM CDT	Flash Flood Warning	OHX	Fentress, Pickett	2 hr
Jun 28, 7:35 AM CDT	Special Weather Statement	OHX	Cumberland, Putnam, White	40 min
Jun 28, 8:30 AM CDT	Special Weather Statement	OHX	Van Buren	45 min
Jun 28, 9:00 AM CDT	Special Weather Statement	OHX	Rutherford	30 min
Jun 28, 9:11 AM CDT	Special Weather Statement	OHX	Montgomery	34 min
Jun 28, 9:32 AM CDT	Special Weather Statement	OHX	Williamson	28 min
Jun 28, 9:39 AM CDT	Special Weather Statement	OHX	Dickson	36 min
Jun 28, 9:39 AM CDT	Severe Thunderstorm Warning	OHX	Marshall, Rutherford, Williamson	36 min
Jun 28, 9:47 AM CDT	Special Weather Statement	OHX	Davidson, Williamson	43 min
Jun 28, 10:09 AM CDT	Areal Flood Advisory	OHX	Williamson	2 hr
Jun 28, 10:11 AM CDT	Special Weather Statement	OHX	Dickson	34 min
Jun 28, 10:17 AM CDT	Severe Thunderstorm Warning	OHX	Maury, Williamson	43 min
Jun 28, 10:37 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	38 min
Jun 28, 10:55 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall, Maury	65 min
Jun 28, 10:59 AM CDT	Special Weather Statement	OHX	Bedford	31 min
Jun 28, 11:19 AM CDT	Special Weather Statement	OHX	Dickson	26 min
Jun 28, 11:22 AM CDT	Special Weather Statement	OHX	Houston, Montgomery, Stewart	38 min
Jun 28, 11:44 AM CDT	Severe Thunderstorm Warning	OHX	Houston, Humphreys, Stewart	46 min
Jun 28, 12:03 PM CDT	Special Weather Statement	OHX	Dickson, Maury	42 min
Jun 28, 12:07 PM CDT	Flash Flood Watch	OHX	Bedford, Coffee, Dickson, Giles, Hickman, Houston and 8 more	3 hr
Jun 28, 12:11 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys	49 min
Jun 28, 12:18 PM CDT	Areal Flood Advisory	OHX	Houston, Humphreys, Stewart	117 min
Jun 28, 12:18 PM CDT	Special Weather Statement	OHX	Montgomery	27 min
Jun 28, 12:23 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall	52 min
Jun 28, 12:27 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Lewis, Perry	33 min
Jun 28, 12:39 PM CDT	Areal Flood Advisory	OHX	Dickson, Hickman, Houston, Humphreys, Williamson	3 hr
Jun 28, 12:43 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Hickman, Lawrence, Lewis, Maury, Williamson	32 min
Jun 28, 1:00 PM CDT	Special Weather Statement	OHX	Cheatham, Davidson, Montgomery, Robertson, Williamson	45 min
Jun 28, 1:09 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lewis, Marshall, Maury	66 min
Jun 28, 1:43 PM CDT	Special Weather Statement	OHX	Davidson, Robertson, Rutherford, Sumner	62 min
Jun 28, 1:49 PM CDT	Areal Flood Advisory	OHX	Bedford, Giles, Hickman, Lawrence, Lewis, Marshall and 3 more	116 min
Jun 28, 2:11 PM CDT	Special Weather Statement	OHX	Bedford, Coffee, Grundy, Warren	64 min
Jun 28, 2:20 PM CDT	Heat Advisory	OHX	Dickson, Hickman, Houston, Humphreys, Lawrence, Lewis and 4 more	53 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2018 Every severe thunderstorm warning in 2018

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.