Alert archive / Tennessee / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 11, NWS Nashville, TN

March 1, 20179 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 1, 2017, 6:24 AM CST for 9 counties in Tennessee. It was in force for 36 min. 19 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: Mar 1, 2017, 6:24 AM CST (12:24 UTC)
Expired: Mar 1, 2017, 7:00 AM CST
In force: 36 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Cheatham County, TN, Davidson County, TN, Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Montgomery County, TN, Robertson County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 62 km from the middle of the area, began a volume at 12:26 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
Mar 1, 6:29 AM CST	TSTM WND DMG	8 N Centerville, TN	EMA AND MEDIA REPORTS INDICATE A PATH OF WIND DAMAGE OCCURRED FROM NORTH OF NUNELLY ALONG PINEWOOD MANSION ROAD ENE ACROSS INDUSTRIAL PARK DRIVE TO NEAR LYLES. A FEW HOMES SUFFERED ROOF DAMAGE...SEVERAL OUTBUILDINGS WERE DAMAGED...AND NUMEROUS TREES WERE SNAPP
Mar 1, 6:32 AM CST	TSTM WND DMG	4 Se Charlotte, TN	CREEK WOOD HIGH SCHOOL SUSTAINED DAMAGE TO THE SCHOOL AND ATHLETIC FACILITIES. TIME ESTIMATED BASED ON RADAR.
Mar 1, 6:32 AM CST	TSTM WND DMG	Vanleer, TN	ROOF BLOWN OFF MCEWEN LOGGING AND SAWMILL IN VANLEER
Mar 1, 6:36 AM CST	HAIL 1	9 Ssw Burns, TN	PICTURE OF 1 INCH FROM PUBLIC VIA SOCIAL MEDIA.
Mar 1, 6:37 AM CST	TSTM WND DMG	4 Se Charlotte, TN	A NWS STORM SURVEY DETERMINED STRAIGHT LINE WINDS UP TO 85 MPH CAUSED DAMAGE SOUTHEAST OF CHARLOTTE. A GARAGE SUFFERED ROOF DAMAGE AND A POWER POLE WAS SNAPPED ON STEELE ROAD AND SEVERAL TREES WERE SNAPPED OR UPROOTED. MORE SIGNIFICANT DAMAGE WAS OBSERVED AT C
Mar 1, 6:46 AM CST	TSTM WND DMG	6 Nnw Kingston Springs, TN	PHOTOS SHOW SEVERAL LARGE TREES WERE SNAPPED AND UPROOTED NEAR GRIFFINTOWN ROAD AT WADE REED ROAD
Mar 1, 6:46 AM CST	TSTM WND DMG	6 Ssw Fairview, TN	TSPOTTER REPORT OF NUMEROUS TREES SNAPPED OR UPROOTED ALONG PINEWOOD ROAD BETWEEN BARNHILL ROAD AND SOUTH HARPETH ROAD. HALF OF THE ROOF OF A BARN AT SOUTH HARPETH ROAD AND PINEWOOD ROAD WAS ALSO BLOWN OFF.
Mar 1, 6:46 AM CST	TSTM WND DMG	7 Nne White Bluff, TN	DELAYED REPORT FROM 3/1. PUBLIC REPORTED A SWATH OF WIND DAMAGE ON THE DICKSON/CHEATHAM COUNTY BORDER FROM A CATTLE FARM ON THE WEST SIDE OF THE HARPETH RIVER EASTWARD ACROSS HARPETH CROSSING TO FERNIE STORY ROAD. OUTBUILDINGS WERE DAMAGED ON THE CATTLE FARRM
Mar 1, 6:48 AM CST	TSTM WND DMG	1 Nnw Belle Meade, TN	EMERGENCY MANAGER REPORTED TREES AND POWER LINES DOWN... ALONG WITH A CAR POSSIBLE BEING FLIPPED. TIME ESTIMATED BY RADAR.
Mar 1, 6:48 AM CST	TSTM WND DMG	5 Ssw Fairview, TN	WEB SPOTTER REPORT OF FENCE BLOWN APART AND TREES DOWN.
Mar 1, 6:51 AM CST	TSTM WND DMG	5 Se Ashland City, TN	A FACEBOOK REPORT SHOWED SHINGLES REMOVED FROM A HOUSE... A FENCE BLOWN DOWN... AND TREES SNAPPED AND UPROOTED.
Mar 1, 6:54 AM CST	TSTM WND DMG	2 Sw Nashville, TN	NWSCHAT REPORT OF TREES THAT FELL NEAR THE VANDERBUILT FOOTBALL STADIUM AND LANDED ON TWO VEHICLES. TIME ESTIMATED BY RADAR.
Mar 1, 6:55 AM CST	TSTM WND DMG	5 Se Ashland City, TN	DELAYED REPORT FROM 3/1. PUBLIC REPORTED NUMEROUS TREES SNAPPED AND UPROOTED AND A FEW HOMES WITH MINOR ROOF AND EXTERIOR DAMAGE IN THE AREA AROUND HIGHWAY 12 AND CEMETERY ROAD.
Mar 1, 7:00 AM CST	TSTM WND DMG	2 W Springfield, TN	EMERGENCY MANAGER REPORTS TREES DOWN ACROS THE COUNTY. NO REPORTS OF STRUCTURAL DAMAGE.
Mar 1, 7:00 AM CST	TSTM WND DMG	5 Nnw Franklin, TN	WEB PICTURE OF TREEDOWN IN GRASSLAND AREA. TIME ESTIMATED VIA RADAR.
Mar 1, 7:00 AM CST	TSTM WND DMG	7 W Franklin, TN	WEB REPORT OF SEVERAL TREES DOWN NEAR HIGHWAY 46 AND WADDELL ROAD. TIME ESTIMATED VIA RADAR.
Mar 1, 7:00 AM CST	TORNADO	3 Nw Franklin, TN	AN EF1 TORNADO SPUN UP JUST NW OF FRANKLIN ALONG HILLSBORO RD AND MOVED ENE ACROSS WILLIAMSON COUNTY CROSSING FRANKLIN ROAD JUST NORTH OF COOL SPRINGS GALLERIA. THE TORNADO WEAKENED AS IT CROSSED I-65 BUT CONTINUED TO CAUSE DAMAGE ON CONCORD RD ALMOST TO THE D
Mar 1, 7:05 AM CST	TSTM WND DMG	1 Nnw Belle Meade, TN	EMERGENCY MANAGER REPORTED TREES AND POWER LINES DOWN... ALONG WITH A CAR POSSIBLE BEING FLIPPED. TIME ESTIMATED BY RADAR.
Mar 1, 7:06 AM CST	TSTM WND DMG	4 Nne Nashville, TN	FACEBOOK POST OF DAMAGE TO HOUSE AND OUT BUILDING ON MORNINGSIDE DRIVE. TIME ESTIMATED FROM RADAR.

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 16 storm reports to this severe thunderstorm warning; the first came 5 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
Mar 1, 4:57 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 0.4 hours before the alert went out and 57 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: 694 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 842 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 361 m²/s²
0-3 km storm-relative helicity: 344 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 9.1

Open this sounding in Storm Lab

The text

As transmitted.

606 
WUUS54 KOHX 011224
SVROHX
TNC021-037-043-081-083-085-125-147-187-011300-
/O.NEW.KOHX.SV.W.0011.170301T1224Z-170301T1300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
624 AM CST WED MAR 1 2017

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Western Davidson County in Middle Tennessee...
  Dickson County in Middle Tennessee...
  Southern Montgomery County in Middle Tennessee...
  Northwestern Williamson County in Middle Tennessee...
  Cheatham County in Middle Tennessee...
  Eastern Houston County in Middle Tennessee...
  East central Humphreys County in Middle Tennessee...
  Northern Hickman County in Middle Tennessee...
  Western Robertson County in Middle Tennessee...

* Until 700 AM CST

* At 624 AM CST, severe thunderstorms were located along a line
  extending from 8 miles east of Erin to near Dickson to 11 miles
  west of Centerville, moving east at 70 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...
  Franklin, Springfield, Dickson, Ashland City, Centerville,
  Nashville, Clarksville, Brentwood, Goodlettsville, Greenbrier,
  Forest Hills, Oak Hill, Coopertown, White Bluff, Belle Meade,
  Kingston Springs, Pegram, Ridgetop, Burns and Fairview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms are capable of producing 
widespread wind damage. SEEK SHELTER NOW inside a sturdy structure 
and stay away from windows! 

&&

A tornado watch remains in effect until 1000 AM CST for Middle
Tennessee.

LAT...LON 3619 8670 3584 8697 3583 8714 3585 8721
      3582 8722 3578 8770 3605 8755 3637 8763
      3637 8759 3640 8760 3660 8682
TIME...MOT...LOC 1224Z 258DEG 59KT 3634 8755 3607 8747 3581 8766 

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

13

1 follow-up statement

052 
WWUS54 KOHX 011239
SVSOHX

Severe Weather Statement
National Weather Service Nashville TN
639 AM CST WED MAR 1 2017

TNC083-085-011248-
/O.CAN.KOHX.SV.W.0011.000000T0000Z-170301T1300Z/
Houston TN-Humphreys TN-
639 AM CST WED MAR 1 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HOUSTON AND EAST
CENTRAL HUMPHREYS 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 1000 AM CST for Middle
Tennessee.

LAT...LON 3619 8670 3584 8697 3583 8714 3585 8721
      3582 8722 3578 8770 3607 8741 3622 8745
      3633 8744 3640 8743 3660 8682
TIME...MOT...LOC 1238Z 258DEG 59KT 3638 8731 3611 8723 3585 8742 

$$

TNC021-037-043-081-125-147-187-011300-
/O.CON.KOHX.SV.W.0011.000000T0000Z-170301T1300Z/
Davidson TN-Dickson TN-Montgomery TN-Williamson TN-Cheatham TN-
Hickman TN-Robertson TN-
639 AM CST WED MAR 1 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM CST
FOR WESTERN DAVIDSON...DICKSON...SOUTHEASTERN MONTGOMERY...
NORTHWESTERN WILLIAMSON...CHEATHAM...NORTHERN HICKMAN AND WESTERN
ROBERTSON COUNTIES...

At 638 AM CST, severe thunderstorms were located along a line
extending from 12 miles south of Clarksville to White Bluff to near
Centerville, moving east at 70 mph.

HAZARD...70 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings. 

Locations impacted include...
Franklin, Springfield, Dickson, Ashland City, Centerville, Nashville,
Brentwood, Goodlettsville, Greenbrier, Forest Hills, Oak Hill,
Coopertown, White Bluff, Belle Meade, Kingston Springs, Pegram,
Ridgetop, Burns, Fairview and Bellevue.

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 1000 AM CST for Middle
Tennessee.

LAT...LON 3619 8670 3584 8697 3583 8714 3585 8721
      3582 8722 3578 8770 3607 8741 3622 8745
      3633 8744 3640 8743 3660 8682
TIME...MOT...LOC 1238Z 258DEG 59KT 3638 8731 3611 8723 3585 8742 

HAIL...1.00IN
WIND...70MPH
 
$$

Whitehead

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 Mar 1, 6:14 AM CST, 10 minutes earlier.

Area forecast discussion, Mar 1, 6:14 AM CST, 10 minutes before

Area Forecast Discussion
National Weather Service Nashville TN
614 AM CST Wed Mar 1 2017

.UPDATE...
FOR MORNING DISCUSSION.

&&

.DISCUSSION...

Updated the suite of forecast products to mention tornado watch 53
thru 01/16Z for entire mid state. Tweaked hrly temp, dewpoint,
and wind speed/direction grids. Simply, prefrontal squall line
developed and raced out ahead of sfc cold front, i.e. the 00Z EURO
solution strikes back, and is actually verifying the best now.

&&

.AVIATION...
12Z TAF DISCUSSION.

A band of strong to severe thunderstorms will move eastward near
60kt across Mid Tn this morning. Wind gusts in excess of 40kt are
expected with the storms at all sites, with locally severe gusts
over 60kt, and hail is likely. Isolated tornadoes are possible.
Main time for storms at CKV will be 12Z-14Z, for BNA 13Z-15Z, and
for CSV 15Z-18Z. Mainly MVFR conditions will be observed, but
brief IFR with the TSRA. Improvement to VFR will occur at all
sites by evening as winds become northwest with a frontal passage.

&&

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

&&

DISCUSSION......31
AVIATION........13

Hazardous weather outlook, Mar 1, 5:28 AM CST, 56 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Nashville TN
528 AM CST Wed Mar 1 2017

TNZ005>011-023>034-056>066-075-077>080-093>095-021100-
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-
528 AM CST Wed Mar 1 2017

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...Today and Tonight

A line of showers and thunderstorms, of which some of the
thunderstorms within and possible just ahead of this line could
reach strong to severe thresholds, will move across Middle
Tennessee this morning. With any strong to severe thunderstorms
that do occur, damaging winds will be the main concern, although
large hail, the formation of a few tornadoes, and brief heavy
rainfall from the stronger showers and thunderstorms resulting in
localized minor flooding could also occur.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is requested through the morning hours today.

31

In the hours before

Special weather statement, Mar 1, 5:27 AM CST, 57 minutes before

Special Weather Statement
National Weather Service Nashville TN
527 AM CST WED MAR 1 2017

TNZ005-006-023>025-056-057-011215-
Hickman TN-Stewart TN-Dickson TN-Humphreys TN-Montgomery TN-
Houston TN-Perry TN-
527 AM CST WED MAR 1 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DICKSON...WESTERN
MONTGOMERY...STEWART...HOUSTON...NORTHERN PERRY...HUMPHREYS AND
CENTRAL HICKMAN COUNTIES UNTIL 615 AM CST...

At 524 AM CST, Doppler radar was tracking strong to severe
thunderstorms in west Tennessee, along a line extending from near
Sedalia to near Blue Goose. Movement was east at 65 mph.

Damaging winds are expected with these storms as they move into
Middle Tennessee beginning around 600 AM CST. Large hail will be
possible, and isolated tornadoes may occur. Warnings will likely be
issued as the storms approach.

Locations impacted include...
Dickson, Waverly, Centerville, Camden, Dover, Erin, Clarksville, New
Johnsonville, McEwen, Tennessee Ridge, Hurricane Mills, Big Rock,
Charlotte, Lobelville, Vanleer, Cumberland City, Slayden, Palmyra,
Bucksnort and Houston County Airport.

A tornado watch remains in effect until 1000 AM CST for Middle
Tennessee.

LAT...LON 3666 8785 3663 8785 3664 8735 3569 8738
      3569 8803 3573 8803 3577 8798 3592 8793
      3594 8793 3595 8801 3597 8802 3605 8799
      3613 8792 3617 8792 3622 8795 3631 8796
      3645 8806 3656 8803 3668 8807
TIME...MOT...LOC 1124Z 268DEG 59KT 3665 8866 3575 8864

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 11:02 PM CST	Tornado Warning	OHX	Stewart	23 min
Mar 1, 5:27 AM CST	Special Weather Statement	OHX	Hickman, Houston, Humphreys, Montgomery, Stewart	48 min
Mar 1, 5:54 AM CST	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Houston, Humphreys, Montgomery, Perry and 1 more	36 min
Mar 1, 6:04 AM CST	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Perry	41 min
Mar 1, 6:26 AM CST	Severe Thunderstorm Warning	OHX	Montgomery, Robertson	34 min
Mar 1, 6:55 AM CST	Severe Thunderstorm Warning	OHX	Davidson, Robertson, Rutherford, Sumner, Trousdale, Williamson and 1 more	35 min
Mar 1, 7:03 AM CST	Tornado Warning	OHX	Davidson, Rutherford, Williamson, Wilson	27 min
Mar 1, 7:26 AM CST	Severe Thunderstorm Warning	OHX	Cannon, Clay, DeKalb, Jackson, Macon, Rutherford and 4 more	34 min
Mar 1, 7:28 AM CST	Tornado Warning	OHX	Smith, Wilson	32 min
Mar 1, 7:49 AM CST	Tornado Warning	OHX	Clay, Macon	26 min
Mar 1, 7:52 AM CST	Tornado Warning	OHX	DeKalb, Putnam, Smith	23 min
Mar 1, 7:58 AM CST	Severe Thunderstorm Warning	OHX	Cannon, Clay, DeKalb, Jackson, Macon, Overton and 5 more	32 min
Mar 1, 8:12 AM CST	Tornado Warning	OHX	Jackson, Overton, Putnam	33 min
Mar 1, 8:17 AM CST	Special Weather Statement	OHX	Lewis	28 min
Mar 1, 8:20 AM CST	Severe Thunderstorm Warning	OHX	Clay, Cumberland, DeKalb, Fentress, Jackson, Overton and 3 more	25 min
Mar 1, 8:43 AM CST	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Pickett, Putnam, White	36 min
Mar 1, 8:45 AM CST	Special Weather Statement	OHX	Lewis	45 min
Mar 1, 9:42 AM CST	Special Weather Statement	OHX	Hickman, Lewis	33 min
Mar 1, 9:46 AM CST	Special Weather Statement	OHX	Cannon, Rutherford	44 min
Mar 1, 9:57 AM CST	Areal Flood Advisory	OHX	Lewis, Perry, Wayne	2 hr
Mar 1, 10:18 AM CST	Special Weather Statement	OHX	Cannon, White	42 min
Mar 1, 10:18 AM CST	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	42 min
Mar 1, 10:22 AM CST	Special Weather Statement	OHX	Marshall	38 min
Mar 1, 10:35 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	25 min
Mar 1, 10:59 AM CST	Special Weather Statement	OHX	Marshall	46 min
Mar 1, 11:03 AM CST	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	27 min
Mar 1, 11:27 AM CST	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall, Wayne	48 min
Mar 1, 11:43 AM CST	Special Weather Statement	OHX	Bedford, Coffee	47 min
Mar 1, 12:13 PM CST	Severe Thunderstorm Warning	OHX	Giles	21 min
Mar 1, 12:18 PM CST	Special Weather Statement	OHX	Cumberland	27 min
Mar 1, 12:42 PM CST	Special Weather Statement	OHX	Grundy	33 min
Mar 1, 12:46 PM CST	Severe Thunderstorm Warning	OHX	Coffee, Grundy	29 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2017 Every severe thunderstorm warning in 2017

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.