A cluster of strong to severe thunderstorms moved southeast across northwestern parts of Middle Tennessee during the evening hours on March 20. Two reports of wind damage were received.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OHX wrote it up.
A cluster of strong to severe thunderstorms moved southeast across northwestern parts of Middle Tennessee during the evening hours on March 20. Two reports of wind damage were received.
The local office's own words before the first event, 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 the first event at Mar 20, 4:34 PM CST, 16 minutes earlier.
Area Forecast Discussion National Weather Service Nashville TN 534 PM CDT Mon Mar 20 2017 .UPDATE... FOR AFTERNOON DISCUSSION UPDATE. && .DISCUSSION... Updated the suite of forecast products to deal with area of convection approaching from the NW that will spread SE across the mid state this evening. Tweaked hrly temp, dewpoint, and wind speed/direction grids. && .AVIATION... 18Z TAF DISCUSSION. VFR conditions will give way to MVFR CIGS overnight as a frontal boundary approaches tomorrow. Gusty winds will linger into this evening, creating a brief period of low level wind shear which should taper after 08Z. Some IFR CIGS may be possible depending on how shower and thunderstorm activity develops, and the best chance for that will be after 18Z. && .OHX WATCHES/WARNINGS/ADVISORIES... NONE. && DISCUSSION......31 AVIATION........05
Hazardous Weather Outlook National Weather Service Nashville TN 502 AM CDT Mon Mar 20 2017 TNZ005>011-023>034-056>066-075-077>080-093>095-211015- 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- 502 AM CDT Mon Mar 20 2017 This Hazardous Weather Outlook is for portions of Middle Tennessee. .DAY ONE...Today and Tonight .DAYS TWO THROUGH SEVEN...Tuesday through Sunday There is a marginal risk for severe thunderstorms across all of Middle Tennessee on Tuesday afternoon into Tuesday evening. A cold front moving across the region will spark scattered to numerous showers and thunderstorms from Tuesday afternoon into Tuesday night. A few storms could be severe with large hail and damaging winds possible, especially for areas along and south of I-40. .SPOTTER INFORMATION STATEMENT... Spotter activation may be need on Tuesday afternoon into Tuesday evening. Shamburger
Special Weather Statement
National Weather Service Nashville TN
512 PM CDT MON MAR 20 2017
TNZ005>007-202300-
Stewart TN-Robertson TN-Montgomery TN-
512 PM CDT MON MAR 20 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MONTGOMERY...STEWART AND
NORTHWESTERN ROBERTSON COUNTIES UNTIL 600 PM CDT...
At 511 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Pembroke to 11 miles east of Murray,
Kentucky. Movement was southeast at 35 mph.
Half inch hail and winds in excess of 30 mph will be possible with
these storms as they move through northwest Middle Tennessee now
through 600 PM CDT.
Locations impacted include...
Clarksville, Dover, Big Rock, Adams, Land Between The Lakes, Indian
Mound and Woodlawn.
LAT...LON 3666 8785 3663 8785 3664 8676 3634 8792
3636 8799 3645 8806 3656 8803 3668 8807
TIME...MOT...LOC 2211Z 306DEG 30KT 3682 8730 3663 8811
13Special Weather Statement
National Weather Service Nashville TN
532 PM CDT MON MAR 20 2017
TNZ007-008-028-029-202300-
Robertson TN-Wilson TN-Trousdale TN-Sumner TN-
532 PM CDT MON MAR 20 2017
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SUMNER...NORTHEASTERN
WILSON...SOUTHWESTERN TROUSDALE AND SOUTHEASTERN ROBERTSON COUNTIES
UNTIL 600 PM CDT...
At 531 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Cross Plains to 6 miles northeast of
Gallatin. Movement was southeast at 25 mph.
Dime size hail and winds in excess of 30 mph will be possible with
these storms.
Locations impacted include...
Gallatin, Hendersonville, Goodlettsville, White House, Millersville,
Greenbrier, Cross Plains, Cottontown, Bledsoe Creek State Park and
Dickerson Chapel Recreation Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3635 8666 3625 8613 3640 8619 3648 8635
3657 8687 3644 8679
TIME...MOT...LOC 2231Z 295DEG 24KT 3651 8674 3643 8636
13The Ft Campbell radar (KHPX), 60 km away, was scanning. The volume nearest the first event began at 22:50 UTC.
2 thunderstorm wind. Local standard time, as filed.
Media shared twitter photos that showed a large tree blown down onto a small house near Erin in Stewart County. The house was heavily damaged. Time estimated based on radar.
A 60 foot tall tree was blown down and blocked the road at the intersection of Brush Creek Road and CCC Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2017Every state in 2017This day in weather historyWarnings in Tennessee, March 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 686861, 686863.