A significant severe weather event affected Middle Tennessee on June 27 as multiple rounds of strong to severe thunderstorms moved across the area throughout the day. Numerous reports of wind damage, large hail, and flash flooding were received mainly across the northern and eastern counties of Middle Tennessee.
Every event with a place to put it. Tap one for its entry below.
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 significant severe weather event affected Middle Tennessee on June 27 as multiple rounds of strong to severe thunderstorms moved across the area throughout the day. Numerous reports of wind damage, large hail, and flash flooding were received mainly across the northern and eastern counties of Middle Tennessee.
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 Jun 27, 2:50 AM CST, 2 hours 10 minutes earlier.
Area Forecast Discussion National Weather Service Nashville TN 350 AM CDT Wed Jun 27 2018 .DISCUSSION... Upper low located over WI this morning. The main trough axis extends southward through western TN but additional impulses still reside upstream. Latest radar shows some additional convection over western KY that is attempting to gain strength. Latest Hr3 solution suggests that it will hold together and ramble across the mid state later today. Will include 40-60 pops again today with the greatest chance across eastern sections. By late this afternoon, trough axis will move east of TN. However, an active northwest flow pattern will remain. Stationary frontal boundary will be camped out close to the Ohio river. 25KT 850 mb flow will intersect with upper impulses near that boundary and MCS development can again be expected. Thickness structure again indicates that convection will slide south and southeastward across our area again tonight. Pops will remain in the 40-60 percent range. As we move into Thursday, the upper high will be centered near the Arklatex. Midday cap erosion will still be in place along with a weaker but still active northwesterly flow. Look for moderate pops to continue. On Friday, the upper high attempts to expand eastward. However, a weakness develops in the form of a n-s upper trough axis extending northward from the north central Gulf. Pops continue for Friday but more on the order of a 20-40 percent chance. For the near term temps, despite the high 850 mb values and the elevated height regime, the clouds and moisture will keep temps down. Highs today will only reach near 90. Still quite humid and sticky at night though with lower to mid 70s. As for heat index values, we are seeing upper 90s to near 100 for the next few days. Friday, however, is looking warmer with highs in the mid 90s and heat index values of 100 to 105. In the ext fcst, The weak trough will remain over our area and then we will see the upper high, to our west, attempt to build northward. Pops will continue as we fail to see a drier mrh intrusion and/or an upper high establishing closer proximity. Midday caps will continue to erode and low pops will be the rule during the aft and eve hours primarily. For the long term temps, 850 mb values will continue to hang out around 20c. So, it should be rather warm with highs in the lower 90s as convection generally holds off until aft and eve. The middle of next week looks a little warmer as the upper high builds north into the nations interior. More in the way of a truer northerly component may bring some drier mrh values southward. Should see high temps reaching the mid 90s. && .AVIATION... 06Z TAF DISCUSSION. BNA/MQY/CKV/CSV...Line of convection is currently moving across Middle Tennessee, and continues to weaken, as expected. Don't know if it will make it to the Cumberland Plateau in its current form or not. (And the HRRR is of little help.) Look for winds to stay up overnight and increase after 12Z, so don't believe radiation fog will be a factor tonight. With a shortwave moving across Middle Tennessee Wednesday morning, scattered showers are possible prior to 18Z, but storms are also possible during peak- heating, so the big challenge this forecast is pinpointing times for convection. && .PRELIMINARY POINT TEMPS/POPS... Nashville 90 74 91 74 94 / 50 40 40 20 30 Clarksville 90 74 91 73 92 / 50 30 40 20 20 Crossville 84 71 85 71 87 / 60 60 40 30 40 Columbia 90 73 91 74 92 / 50 30 40 20 30 Lawrenceburg 90 73 91 73 92 / 50 40 40 20 40 Waverly 90 74 90 73 92 / 50 30 40 20 30 && .OHX WATCHES/WARNINGS/ADVISORIES... NONE. && DISCUSSION......21 AVIATION........07
Hazardous Weather Outlook National Weather Service Nashville TN 552 AM CDT Wed Jun 27 2018 TNZ005>011-023>034-056>066-075-077>080-093>095-281030- 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- 552 AM CDT Wed Jun 27 2018 This Hazardous Weather Outlook is for portions of Middle Tennessee. .DAY ONE...Today and Tonight A few strong to severe thunderstorms will be possible across Middle Tennessee mainly this afternoon, then again late tonight. The main concern with any strong to severe thunderstorms that do develop will be strong to damaging winds. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed today.
Special Weather Statement
National Weather Service Nashville TN
1225 AM CDT WED JUN 27 2018
TNZ010-011-030>034-064>066-270615-
Putnam TN-Cumberland TN-Fentress TN-Overton TN-Pickett TN-Clay TN-
De Kalb TN-Jackson TN-White TN-Smith TN-
1225 AM CDT WED JUN 27 2018
...SIGNIFICANT WEATHER ADVISORY FOR OVERTON...PICKETT...NORTHWESTERN
CUMBERLAND...SOUTHEASTERN SMITH...NORTHEASTERN DE KALB...JACKSON...
CLAY...NORTHERN WHITE...PUTNAM AND FENTRESS COUNTIES UNTIL 115 AM
CDT...
At 1224 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Celina to 7 miles northwest of Smithville.
Movement was east at 60 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
Cookeville, Livingston, Jamestown, Celina, Gainesboro, Byrdstown,
Algood, Monterey, Baxter, Gordonsville, Hickman, Allardt, Pleasant
Hill, Hamptons Crossroads, Moss, Center Hill Lake, Clarkrange,
Cummins Falls State Park, Grimsley and Whitleyville.
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.
These storms 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.
&&
LAT...LON 3662 8509 3660 8479 3658 8477 3595 8516
3609 8601 3662 8560
TIME...MOT...LOC 0524Z 273DEG 53KT 3663 8554 3604 8593
07Special Weather Statement
National Weather Service Nashville TN
211 AM CDT WED JUN 27 2018
TNZ075-077-270745-
Coffee TN-Bedford TN-
211 AM CDT WED JUN 27 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN COFFEE AND BEDFORD
COUNTIES UNTIL 245 AM CDT...
At 211 AM CDT, Doppler radar was tracking a strong thunderstorm near
Shelbyville, moving east at 35 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Shelbyville, Manchester, Tullahoma, Wartrace, Normandy, Raus and
Arnold AFB.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
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.
&&
LAT...LON 3536 8625 3537 8628 3538 8625 3539 8628
3540 8626 3541 8625 3541 8629 3536 8633
3534 8641 3536 8649 3536 8660 3538 8663
3557 8661 3556 8602 3535 8606 3536 8616
3534 8620 3535 8623 3534 8626
TIME...MOT...LOC 0711Z 273DEG 38KT 3545 8653
07Special Weather Statement
National Weather Service Nashville TN
238 AM CDT WED JUN 27 2018
TNZ063-077-078-270830-
Cannon TN-Coffee TN-Warren TN-
238 AM CDT WED JUN 27 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN COFFEE...WARREN AND
SOUTHERN CANNON COUNTIES UNTIL 330 AM CDT...
At 237 AM CDT, Doppler radar was tracking a strong thunderstorm 12
miles north of Manchester, moving east at 30 mph.
Half inch hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
McMinnville, Morrison, Centertown, Viola, Beechgrove and Summitville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
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.
&&
LAT...LON 3557 8624 3562 8625 3574 8615 3582 8568
3553 8561 3553 8571
TIME...MOT...LOC 0737Z 273DEG 24KT 3564 8602
07Special Weather Statement
National Weather Service Nashville TN
321 AM CDT WED JUN 27 2018
TNZ078>080-270845-
Van Buren TN-Grundy TN-Warren TN-
321 AM CDT WED JUN 27 2018
...SIGNIFICANT WEATHER ADVISORY FOR VAN BUREN...SOUTHEASTERN WARREN
AND GRUNDY COUNTIES UNTIL 345 AM CDT...
At 321 AM CDT, Doppler radar was tracking a strong thunderstorm 12
miles northeast of Gruetli-Laager, or 13 miles northwest of Dunlap,
moving east at 35 mph.
Half inch hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Spencer, Gruetli-Laager, Tracy City, Altamont, Coalmont, Palmer,
Beersheba Springs, Pelham and Fall Creek Falls State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
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.
&&
LAT...LON 3527 8591 3529 8591 3553 8572 3575 8565
3576 8526 3572 8527 3557 8542 3555 8546
3553 8561 3549 8554 3543 8554 3541 8551
3541 8549 3535 8551 3532 8556 3530 8566
3529 8569 3529 8571 3527 8571
TIME...MOT...LOC 0821Z 273DEG 49KT 3553 8552
07The Nashville radar (KOHX), 7 km away, was scanning. The volume nearest the first event began at 11:03 UTC.
21 thunderstorm wind, 3 hail, 2 flood, 2 flash flood, 1 lightning. Local standard time, as filed.
Mays Chapel Road at Polecat Road was flooded and impassable.
A tree was blown down that blocked the entire roadway in the 500 block of Glen Echo Drive.
A home at 2761 Hickory Ridge Road was struck by lightning and caught fire causing minor damage.
Fall Creek Falls State Park manager estimated one to two hundred trees were blown down across the park with three cabins and several campers and vehicles damaged from fallen trees.
Trees were blown down along New Hope Road.
Trees were blown down at 204 West Henson Street and power lines were blown down on Oak Street and West 4th Street in Livingston.
Several trees were blown down around Hermitage Springs including one that fell onto a car on Happy Springs Road at Highway 52.
Trees were blown down in Gainesboro.
Several roads were flooded in downtown Red Boiling Springs including Bennett Hill Road, Highway 56, McClure Street and Main Street.
Trees and power lines were blown down mainly in the north part of Waverly.
Several trees were blown down on Standing Rock Road along the Fentress/Morgan County line.
Six trees were blown down in the New Union area along Parker Road.
Tennessee Emergency Management Agency reported numerous roads were flooded across Gainesboro. Jackson County Emergency Management and Facebook photos and videos also showed several buildings flooded across Gainesboro, including the EMS station on Murray Street, the Jackson County Rescue Squad facility on Highway 56 at School Drive, and a storage facility along Highway 56 at Doc Creek Lane.
A tree was blown down onto a main power line on Highway 70 west of Crossville causing widespread power outages.
Trees were blown down on Mount Vernon Court in White House.
Trees were blown down along Jones Road in Cottontown.
Quarter size hail reported in southeast Montgomery County. Location estimated based on radar.
Several trees were snapped and uprooted along Brandy Hollow Road south of Portland.
Several trees were blown down with cars trapped in between them on Greenfield Lane in Castalian Springs.
A tree was blown down blocking the roadway at 1421 Beasleys Bend Road.
Ham radio reports along with social media photos and videos showed several trees were blown down in the Bell Road and Sailboat Drive area of Antioch.
Trees were blown down on Highway 80 near the Macon/Smith County line.
Trees were blown down on Highway 70 causing a motor vehicle accident.
A tree was blown down on Murfreesboro Highway south of West Richmond Shop Road.
A 3 foot diameter tree was snapped at 5349 Academy Road.
Street flooding was reported on the Livingston Bypass.
A Facebook video showed pea to quarter size hail fell near Hillsboro.
A tree was blown down that blocked Highway 41 between Pelham and Monteagle.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2018Every state in 2018This day in weather historyWarnings in Tennessee, June 2018
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: 770438, 770436, 770437, 770440, 770443, 770446, 770444, 770447, 770451, 770448, 770449, 770452, 770470, 770454, 770457, 770460, 770459, 770463, 770475, 770477, 770480, 770482, 770456, 770483, 770484, 770485, 770486, 770487, 770488.