Alert archive / Tennessee / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 169, NWS Nashville, TN

November 5, 20184 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Nov 5, 2018, 11:55 PM CST for 4 counties in Tennessee. It was in force for 35 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: Nov 5, 2018, 11:55 PM CST (05:55 UTC)
Expired: Nov 6, 2018, 12:30 AM CST
In force: 35 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 mph

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

The radar

The Nashville radar (KOHX), 38 km from the middle of the area, began a volume at 05:56 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
Nov 5, 11:58 PM CST	TSTM WND DMG	4 E Arrington, TN	A FEW TREES WERE BLOWN DOWN ON A FARM ON OLD MURFREESBORO ROAD
Nov 5, 11:59 PM CST	TSTM WND DMG	5 E Arrington, TN	SEVERAL SHINGLES WERE BLOWN OFF A HOME ON SPANNTOWN ROAD.

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 3 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
Nov 5, 7:04 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 5.9 hours before the alert went out and 26 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.

157 
WUUS54 KOHX 060555
SVROHX
TNC037-149-187-189-060630-
/O.NEW.KOHX.SV.W.0169.181106T0555Z-181106T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
1155 PM CST MON NOV 5 2018

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Southeastern Davidson County in Middle Tennessee...
  Rutherford County in Middle Tennessee...
  Eastern Williamson County in Middle Tennessee...
  Southwestern Wilson County in Middle Tennessee...

* Until 1230 AM CST.

* At 1155 PM CST, a severe thunderstorm was located over Nolensville,
  or 10 miles east of Franklin, moving northeast at 50 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Murfreesboro, Franklin, Lebanon, Smyrna, Brentwood, La Vergne,
  Nolensville, Walterhill, Rural Hill, Eagleville, Lascassas, Triune,
  Cedars Of Lebanon State Park and Gladeville.

This includes the following highways...
 Interstate 40 between mile markers 239 and 244.
 Interstate 24 between mile markers 59 and 84.
 Interstate 840 between mile markers 38 and 74.

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 300 AM CST for Middle
Tennessee.

LAT...LON 3575 8670 3602 8678 3622 8618 3579 8619
TIME...MOT...LOC 0555Z 244DEG 43KT 3591 8665 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$

Shamburger

1 follow-up statement

505 
WWUS54 KOHX 060619
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
1219 AM CST TUE NOV 6 2018

TNC037-187-060629-
/O.CAN.KOHX.SV.W.0169.000000T0000Z-181106T0630Z/
Davidson TN-Williamson TN-
1219 AM CST TUE NOV 6 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DAVIDSON AND
EASTERN WILLIAMSON COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 300 AM CST for Middle
Tennessee.

LAT...LON 3622 8618 3579 8619 3576 8656 3612 8649
TIME...MOT...LOC 0619Z 256DEG 34KT 3614 8632 3580 8643 

$$

TNC149-189-060630-
/O.CON.KOHX.SV.W.0169.000000T0000Z-181106T0630Z/
Rutherford TN-Wilson TN-
1219 AM CST TUE NOV 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CST
FOR CENTRAL RUTHERFORD AND SOUTHWESTERN WILSON COUNTIES...

At 1219 AM CST, severe thunderstorms were located along a line
extending from near Lebanon to near Murfreesboro, moving east at 40
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Murfreesboro, Lebanon, Smyrna, La Vergne, Walterhill, Cedars Of
Lebanon State Park, Lascassas and Gladeville.

This includes the following highways...
 Interstate 40 between mile markers 238 and 244.
 Interstate 24 between mile markers 71 and 84.
 Interstate 840 between mile markers 49 and 75.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

A Tornado Watch remains in effect until 300 AM CST for Middle
Tennessee.

LAT...LON 3622 8618 3579 8619 3576 8656 3612 8649
TIME...MOT...LOC 0619Z 256DEG 34KT 3614 8632 3580 8643 

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 5, 11:39 PM CST, 16 minutes earlier.

Area forecast discussion, Nov 5, 11:39 PM CST, 16 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
1139 PM CST Mon Nov 5 2018

.DISCUSSION...

Updated the suite of forecast products to reflect current
movement of squall line and to mention Tor Watch 424 for eastern
locations across mid state region.

&&

.DISCUSSION...

Updated suite of forecast products to mention Tornado Watch Number
423 thru 06/09Z (3 AM CST) in zone forecast product. Latest HRRR
model depicting best squall line movement west to east across mid
state region and adjusted hrly grids with wx and pops
accordingly. Highlighted mention of damaging winds, tornadoes, and
heavy rainfall with this squall line as it moves across the mid
state region. Nashville Metro area continues to look like it will
be influenced by this squall line event between 10 PM CST and 1
AM CST. Tweaked hrly temp, dewpoint, and wind speed/direction
grids. Current temps trends in line with forecasted lows.
Remainder of forecast continues to be on track.

.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, 5 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

Special weather statement, Nov 5, 7:56 PM CST, 3 hours 59 minutes before

Special Weather Statement
National Weather Service Nashville TN
756 PM CST MON NOV 5 2018

TNZ005-060230-
Stewart TN-
756 PM CST MON NOV 5 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN STEWART COUNTY UNTIL 830
PM CST...

At 755 PM CST, Doppler radar was tracking a strong thunderstorm 8
miles west of Big Rock, or 10 miles northwest of Dover, moving
northeast at 45 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Big Rock and Land Between The Lakes.

A Tornado Watch remains in effect until 300 AM CST for Middle
Tennessee.

LAT...LON 3666 8785 3663 8785 3664 8764 3661 8764
      3647 8805 3649 8806 3652 8804 3656 8803
      3668 8807
TIME...MOT...LOC 0155Z 238DEG 38KT 3662 8792

Whitehead

Special weather statement, Nov 5, 8:36 PM CST, 3 hours 19 minutes before

Special Weather Statement
National Weather Service Nashville TN
836 PM CST MON NOV 5 2018

TNZ005-006-023-024-060300-
Stewart TN-Humphreys TN-Montgomery TN-Houston TN-
836 PM CST MON NOV 5 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MONTGOMERY...
STEWART...HOUSTON AND NORTH CENTRAL HUMPHREYS COUNTIES UNTIL 900 PM
CST...

At 835 PM CST, Doppler radar was tracking a strong thunderstorm 7
miles northeast of Springville, or 10 miles south of Paris Landing
State Park, moving northeast at 55 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Dover, Erin, Tennessee Ridge, Big Rock, Cumberland City, Houston
County Airport and Indian Mound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Tornado Watch remains in effect until 300 AM CST for Middle
Tennessee.

LAT...LON 3648 8805 3663 8779 3664 8766 3634 8747
      3633 8749 3634 8751 3632 8752 3616 8791
      3622 8795 3626 8794 3631 8796 3635 8798
      3637 8800 3639 8801 3645 8806
TIME...MOT...LOC 0235Z 239DEG 49KT 3630 8803

10

Local storm report, Nov 5, 11:00 PM CST, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1100 PM CST MON NOV 05 2018

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

1050 PM     TSTM WND GST     WAYNESBORO              35.32N  87.76W
11/05/2018  E65 MPH          WAYNE              TN   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTS ESTIMATED 65 MPH GUST IN
            DOWNTOWN WAYNESBORO

&&

EVENT NUMBER OHX1800386

BS

Local storm report, Nov 5, 11:21 PM CST, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1121 PM CST MON NOV 05 2018

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

1114 PM     FLASH FLOOD      4 SE ASHLAND CITY       36.24N  87.00W
11/05/2018                   CHEATHAM           TN   911 CALL CENTER

            WATER OVER ROAD AT LITTLE MARROWBONE RD

&&

EVENT NUMBER OHX1800387

BS

Local storm report, Nov 5, 11:24 PM CST, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1124 PM CST MON NOV 05 2018

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

1114 PM     FLASH FLOOD      5 N PEGRAM              36.17N  87.05W
11/05/2018                   CHEATHAM           TN   911 CALL CENTER

            WATER OVER ROAD AT SAMS CREEK ROAD

&&

EVENT NUMBER OHX1800388

BS

Local storm report, Nov 5, 11:49 PM CST, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1149 PM CST MON NOV 05 2018

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

1119 PM     TSTM WND DMG     8 WNW IRON CITY         35.07N  87.71W
11/05/2018                   WAYNE              TN   EMERGENCY MNGR

            HOUSE DAMAGED ON MIDDLE CYPRESS CREEK ROAD IN SOUTHERN
            WAYNE COUNTY.

&&

EVENT NUMBER OHX1800389

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, 11:56 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	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam	37 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.