Alert archive / Tennessee / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 172, NWS Nashville, TN

November 6, 2018Jackson County, Overton County, Putnam County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Nov 6, 2018, 1:23 AM CST for Jackson County, Overton County, Putnam County, Tennessee. It was in force for 37 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: Nov 6, 2018, 1:23 AM CST (07:23 UTC)
Expired: Nov 6, 2018, 2:00 AM CST
In force: 37 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Jackson County, TN, Overton County, TN, Putnam County, TN

The radar

The Nashville radar (KOHX), 104 km from the middle of the area, began a volume at 07:27 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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
Nov 5, 10:30 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 7.4 hours before the alert went out and 108 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 711 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 521 m²/s²
0-3 km storm-relative helicity: 667 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

531 
WUUS54 KOHX 060723
SVROHX
TNC087-133-141-060800-
/O.NEW.KOHX.SV.W.0172.181106T0723Z-181106T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
123 AM CST TUE NOV 6 2018

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Overton County in Middle Tennessee...
  Southeastern Jackson County in Middle Tennessee...
  Putnam County in Middle Tennessee...

* Until 200 AM CST.

* At 122 AM CST, a severe thunderstorm was located near Baxter, 
  moving east at 60 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Cookeville, Livingston, Algood, Monterey, Baxter, Crawford, Rickman
  and Cummins Falls State Park.

This includes Interstate 40 between mile markers 279 and 303.
 
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 600 AM CST for Middle
Tennessee.

LAT...LON 3607 8564 3627 8570 3648 8519 3620 8509
      3612 8516
TIME...MOT...LOC 0722Z 252DEG 52KT 3619 8557 

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

Shamburger

1 follow-up statement

259 
WWUS54 KOHX 060742
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
142 AM CST TUE NOV 6 2018

TNC087-060751-
/O.CAN.KOHX.SV.W.0172.000000T0000Z-181106T0800Z/
Jackson TN-
142 AM CST TUE NOV 6 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JACKSON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM CST for Middle
Tennessee.

LAT...LON 3648 8519 3620 8509 3612 8516 3609 8548
      3636 8548
TIME...MOT...LOC 0741Z 241DEG 49KT 3632 8527 

$$

TNC133-141-060800-
/O.CON.KOHX.SV.W.0172.000000T0000Z-181106T0800Z/
Overton TN-Putnam TN-
142 AM CST TUE NOV 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CST
FOR OVERTON AND CENTRAL PUTNAM COUNTIES...

At 141 AM CST, a severe thunderstorm was located near Livingston,
moving northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Cookeville, Livingston, Algood, Monterey, Crawford and Rickman. 

This includes Interstate 40 between mile markers 289 and 303.
 
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 600 AM CST for Middle
Tennessee.

LAT...LON 3648 8519 3620 8509 3612 8516 3609 8548
      3636 8548
TIME...MOT...LOC 0741Z 241DEG 49KT 3632 8527 

TORNADO...POSSIBLE
HAIL...<.75IN
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 Nov 6, 12:23 AM CST, 1 hour earlier.

Area forecast discussion, Nov 6, 12:23 AM CST, 1 hour before

Area Forecast Discussion
National Weather Service Nashville TN
1223 AM CST Tue Nov 6 2018

.UPDATE...
FOR MORNING DISCUSSION.

&&

.DISCUSSION...

Updated suite of forecast products to remove several counties
across western and northern portions of mid state from Tornado
Watch Number 423.

&&

.AVIATION...
06Z TAF DISCUSSION.

CKV/BNA/MQY/CSV...Went very close to 06/00Z TAF discussion
reasoning. Several amendments probable at all terminal sites due
to actual fluctuations in wx, wind, vsbys, and ceilings thru at
least 06/12Z. Reason behind this is that there is no way with
forecast wx resolution to do these very short term time period
deviations accurately in a concise terminal forecast format. One
significant change of note though is the introduction of LLWS with
60kts of shear within 2 KFT of sfc. Data from 06/04Z OHX sounding
sounding profile depicting 50-60kts winds as close as 200 feet
off sfc. Significant caution is urged for any aviation interest
across the mid state region thru 06/12Z. Latest models continuing
to support designated TEMPO group impacts and timing windows of
potential strong/svr tstms of a potential squall line feature
moving across terminal locations. During these TEMPO time periods
sfc gusts 40 to 50 kts if not locally higher are certainly not out
of the question. Sly sustained sfc winds 10-15kts with gusts to
25kts will veer to the west as sfc cold front continues to move
southeastward across and out of mid state by 06/12Z. Conditions
should rapidly improve to VFR/SKC conditions all terminals
06/14Z-07/06Z as sfc high pressure influences and a dry quasi swly
flow pattern becomes established across mid state region.

&&

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

&&

DISCUSSION......31
AVIATION........31

Hazardous weather outlook, Nov 5, 11:50 PM CST, 1 hour 33 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
1150 PM CST Mon Nov 5 2018

TNZ009>011-027>034-058>066-075-077>080-093>095-070600-
Macon-Clay-Pickett-Davidson-Wilson-Trousdale-Smith-Jackson-Putnam-
Overton-Fentress-Lewis-Williamson-Maury-Marshall-Rutherford-
Cannon-De Kalb-White-Cumberland-Bedford-Coffee-Warren-Grundy-
Van Buren-Wayne-Lawrence-Giles-
1150 PM CST Mon Nov 5 2018

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...Overnight

A line of strong to potentially severe thunderstorms is expected
to continue to move across Middle Tennessee as the overnight hours
progress. Strong to severe thunderstorms within the line will be
capable of producing damaging winds and some tornadoes. Locally
heavy rainfall and localized flash flooding may be possible in a
few locations also.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Low temperatures below freezing are possible each morning on
Saturday and Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is requested through early Tuesday morning.

TNZ005>008-023>026-056-057-070600-
Stewart-Montgomery-Robertson-Sumner-Houston-Humphreys-Dickson-
Cheatham-Perry-Hickman-
1150 PM CST Mon Nov 5 2018

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Low temperatures below freezing are possible each morning on
Saturday and Sunday.

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, Nov 6, 12:21 AM CST, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1221 AM CST TUE NOV 06 2018

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

1136 AM     TSTM WND DMG     6 SSE COLUMBIA          35.54N  87.01W
11/05/2018                   MAURY              TN   EMERGENCY MNGR

            TREES DOWN ACROSS MOORSVILLE PIKE IN MAURY COUNTY. ROAD
            WAS CLOSED AT TIME OF REPORT.

&&

EVENT NUMBER OHX1800394

BW

Local storm report, Nov 6, 12:41 AM CST, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1241 AM CST TUE NOV 06 2018

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

1222 AM     TSTM WND DMG     7 E ROVER               35.69N  86.48W
11/06/2018                   RUTHERFORD         TN   EMERGENCY MNGR

            HOUSE COMPLETELY COLLAPSED AT 8085 MIDLAND ROAD IN
            CHRISTIANA...POSSIBLE TORNADO

&&

EVENT NUMBER OHX1800395

BW

Local storm report, Nov 6, 12:47 AM CST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1247 AM CST TUE NOV 06 2018

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

1150 PM     TSTM WND DMG     6 W MINOR HILL          35.03N  87.28W
11/05/2018                   LAWRENCE           TN   EMERGENCY MNGR

            POWER LINES DOWN AT 123 HOOD HOLLOW ROAD IN SOUTHERN
            LAWRENCE COUNTY

&&

EVENT NUMBER OHX1800396

BW

Local storm report, Nov 6, 12:54 AM CST, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1254 AM CST TUE NOV 06 2018

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

1225 AM     TSTM WND DMG     9 NNW BELL BUCKLE       35.71N  86.40W
11/06/2018                   RUTHERFORD         TN   SOCIAL MEDIA

            REPORTS OF SEVERAL STRUCTURES DAMAGED, INCLUDING A ROOF
            MISSING FROM A STRUCTURE ON ROCK SPRINGS ROAD. POSSIBLE
            TORNADO.

&&

EVENT NUMBER OHX1800397

BS

Local storm report, Nov 6, 12:56 AM CST, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1256 AM CST TUE NOV 06 2018

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

1140 PM     TSTM WND DMG     3 NE THOMPSON'S STATION 35.84N  86.88W
11/05/2018                   WILLIAMSON         TN   EMERGENCY MNGR

            TREES DOWN IN FAIRVIEW, GOOSE CREEK AT MCLEMORE, ROCKY
            FORD AT FLY ROAD, AND IN THOMPOSON STATION

&&

EVENT NUMBER OHX1800398

BW

Local storm report, Nov 6, 1:11 AM CST, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
111 AM CST TUE NOV 06 2018

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

1150 PM     TSTM WND DMG     4 E ARRINGTON           35.86N  86.63W
11/05/2018                   WILLIAMSON         TN   SOCIAL MEDIA

            TREES DOWN ON SPANNTOWN ROAD. POSSIBLE TORNADO.

&&

EVENT NUMBER OHX1800399

BW

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 5, 7:56 PM CST	Special Weather Statement	OHX	Stewart	34 min
Nov 5, 8:36 PM CST	Special Weather Statement	OHX	Houston, Stewart	24 min
Nov 5, 9:18 PM CST	Tornado Warning	OHX	Cheatham, Dickson, Montgomery	27 min
Nov 5, 9:31 PM CST	Areal Flood Advisory	OHX	Montgomery, Stewart	119 min
Nov 5, 9:55 PM CST	Tornado Warning	OHX	Cheatham, Davidson, Robertson, Sumner	35 min
Nov 5, 10:16 PM CST	Areal Flood Advisory	OHX	Cheatham, Davidson, Dickson, Robertson	119 min
Nov 5, 10:20 PM CST	Tornado Warning	OHX	Sumner, Trousdale, Wilson	25 min
Nov 5, 10:31 PM CST	Tornado Warning	OHX	Wayne	29 min
Nov 5, 10:33 PM CST	Tornado Warning	OHX	Hickman, Lewis, Maury, Perry, Wayne	27 min
Nov 5, 10:55 PM CST	Tornado Warning	OHX	Lawrence, Lewis, Wayne	35 min
Nov 5, 10:55 PM CST	Tornado Warning	OHX	Hickman, Lewis, Maury	21 min
Nov 5, 10:59 PM CST	Flash Flood Warning	OHX	Cheatham, Davidson, Sumner	2 hr
Nov 5, 11:08 PM CST	Tornado Warning	OHX	Lawrence, Wayne	37 min
Nov 5, 11:15 PM CST	Tornado Warning	OHX	Hickman, Maury, Williamson	30 min
Nov 5, 11:31 PM CST	Tornado Warning	OHX	Marshall, Maury	29 min
Nov 5, 11:37 PM CST	Tornado Warning	OHX	Williamson	23 min
Nov 5, 11:38 PM CST	Tornado Warning	OHX	Lawrence, Wayne	37 min
Nov 5, 11:45 PM CST	Areal Flood Advisory	OHX	Davidson	2 hr
Nov 5, 11:55 PM CST	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson, Wilson	35 min
Nov 5, 11:56 PM CST	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford	34 min
Nov 5, 11:59 PM CST	Tornado Warning	OHX	Rutherford, Williamson	31 min
Nov 6, 12:00 AM CST	Tornado Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	30 min
Nov 6, 12:01 AM CST	Tornado Warning	OHX	Giles, Lawrence	29 min
Nov 6, 12:02 AM CST	Areal Flood Advisory	OHX	Macon, Sumner, Trousdale, Wilson	118 min
Nov 6, 12:18 AM CST	Tornado Warning	OHX	Cannon, Rutherford, Wilson	14 min
Nov 6, 12:23 AM CST	Tornado Warning Tornado observed	OHX	Cannon, Rutherford	37 min
Nov 6, 12:27 AM CST	Tornado Warning	OHX	Giles	18 min
Nov 6, 12:43 AM CST	Tornado Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Wilson	32 min
Nov 6, 12:47 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee	28 min
Nov 6, 1:23 AM CST	Tornado Warning Tornado observed	OHX	Coffee, Grundy	39 min
Nov 6, 1:28 AM CST	Tornado Warning	OHX	Putnam, White	15 min
Nov 6, 1:48 AM CST	Severe Thunderstorm Warning	OHX	Fentress, Overton, Pickett	42 min
Nov 6, 1:54 AM CST	River Flood Warning	OHX	Davidson	5 hr
Nov 6, 2:12 AM CST	Areal Flood Advisory	OHX	Wilson	2 hr
Nov 6, 7:24 AM CST	River Flood Advisory	OHX	Hickman	69 min

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.