The largest severe weather event to strike Middle Tennessee in the summer of 2014 affected the area during the afternoon hours on August 20. Scattered strong to severe thunderstorms produced numerous reports of wind damage and measured wind gusts up to 75 mph, as well as a few reports of flash flooding.
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.
The largest severe weather event to strike Middle Tennessee in the summer of 2014 affected the area during the afternoon hours on August 20. Scattered strong to severe thunderstorms produced numerous reports of wind damage and measured wind gusts up to 75 mph, as well as a few reports of flash flooding. The ASOS at Clarksville Outlaw Field measured a wind gust of 75 mph, which is likely the strongest wind gust ever measured in Clarksville, although historical wind records are incomplete.
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 Aug 20, 11:35 AM CST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 1235 PM CDT WED AUG 20 2014 .UPDATE...FOR 18Z AVIATION. && .AVIATION...18Z TAF DISCUSSION. VFR CONDITIONS AT ALL MIDDLE TENNESSEE TERMINALS THROUGH MOST OF THIS PERIOD. CAN EXPECT SOME TS IN THE AREA OF KCSV THIS AFTERNOON BUT SCATTERED ENOUGH TO PRECLUDE FROM PREVAILING. LOOK FOR A COUPLE HOURS OF IFR AROUND SUNRISE AT KCSV AS VIS DROPS. WINDS WILL BE LIGHT OUT OF THE SOUTHWEST. UNGER && .OHX WATCHES/WARNINGS/ADVISORIES... NONE. && 27
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NASHVILLE TN 500 AM CDT WED AUG 20 2014 TNZ005>011-023>034-056>066-075-077>080-093>095-211000- 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- 500 AM CDT WED AUG 20 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BRING HOT TEMPERATURES AND HIGH HUMIDITY LEVELS TO MIDDLE TENNESSEE FROM THURSDAY THROUGH EARLY NEXT WEEK. HEAT INDEX VALUES WILL TOP OUT IN THE 100-105 RANGE EACH AFTERNOON. 55
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 903 AM CDT WED AUG 20 2014 TNZ005-006-023>025-056>058-060-093>095-210000- STEWART-MONTGOMERY-HOUSTON-HUMPHREYS-DICKSON-PERRY-HICKMAN-LEWIS- MAURY-WAYNE-LAWRENCE-GILES- INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...ERIN...WAVERLY... DICKSON...LOBELVILLE...CENTERVILLE...HOHENWALD...COLUMBIA... WAYNESBORO...LAWRENCEBURG...PULASKI 903 AM CDT WED AUG 20 2014 ...AFTERNOON HEAT INDEX VALUES ACROSS WESTERN MIDDLE TENNESSEE TO REACH 103 TO 105 DEGREES TODAY... AS A STRONG UPPER LEVEL RIDGE OF HIGH PRESSURE BEGINS TO DEVELOP ACROSS THE MID STATE...TEMPERATURES WILL BE ON THE INCREASE. THE COMBINATION OF HEAT AND HUMIDITY THAT IS IN PLACE WILL ALLOW HEAT INDEX VALUES TO REACH THE 102 TO 105 DEGREE RANGE ACROSS WESTERN PORTIONS OF MIDDLE TENNESSEE. IF YOU MUST BE OUTDOORS...PEOPLE SHOULD TAKE THE NECESSARY PRECAUTIONS TO PROTECT YOURSELF FROM THE HEAT. SLOW DOWN...WEAR LIGHT COLORED CLOTHING AND DRINK PLENTY OF WATER OR OTHER NON ALCOHOLIC BEVERAGES. CHECK ON THE ELDERLY AND ABOVE ALL...DO NOT LEAVE SMALL CHILDREN UNATTENDED INSIDE A VEHICLE FOR ANY LENGTH OF TIME. THE HEAT IS EXPECTED TO CONTINUE THROUGH THE WEEKEND AND INTO NEXT WEEK. 21
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 1125 AM CDT WED AUG 20 2014 TNZ005>009-023>030-056>064-075-077-078-093>095-210000- STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-HOUSTON-HUMPHREYS- DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-SMITH-PERRY-HICKMAN- LEWIS-WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DE KALB-BEDFORD- COFFEE-WARREN-WAYNE-LAWRENCE-GILES- INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...SPRINGFIELD... GALLATIN...LAFAYETTE...ERIN...WAVERLY...DICKSON...ASHLAND CITY... NASHVILLE...LEBANON...MOUNT JULIET...HARTSVILLE...CARTHAGE... LOBELVILLE...CENTERVILLE...HOHENWALD...FRANKLIN...BRENTWOOD... COLUMBIA...LEWISBURG...MURFREESBORO...WOODBURY...SMITHVILLE... SHELBYVILLE...TULLAHOMA...MANCHESTER...MCMINNVILLE...WAYNESBORO... LAWRENCEBURG...PULASKI 1125 AM CDT WED AUG 20 2014 ......AFTERNOON HEAT INDEX VALUES ACROSS MUCH OF MIDDLE TENNESSEE TO REACH 103 TO 105 DEGREES TODAY... AS A STRONG UPPER LEVEL RIDGE OF HIGH PRESSURE BEGINS TO DEVELOP ACROSS THE MID STATE...TEMPERATURES WILL BE ON THE INCREASE. THE COMBINATION OF HEAT AND HUMIDITY THAT IS IN PLACE WILL ALLOW HEAT INDEX VALUES TO REACH THE 102 TO 105 DEGREE RANGE ACROSS MUCH OF THE MIDDLE TENNESSEE AREA...WITH THE EXCEPTION OF THE CUMBERLAND PLATEAU. IF YOU MUST BE OUTDOORS...PEOPLE SHOULD TAKE THE NECESSARY PRECAUTIONS TO PROTECT YOURSELF FROM THE HEAT. SLOW DOWN...WEAR LIGHT COLORED CLOTHING AND DRINK PLENTY OF WATER OR OTHER NON ALCOHOLIC BEVERAGES. CHECK ON THE ELDERLY AND ABOVE ALL...DO NOT LEAVE SMALL CHILDREN UNATTENDED INSIDE A VEHICLE FOR ANY LENGTH OF TIME. THE HEAT IS EXPECTED TO CONTINUE THROUGH THE WEEKEND AND INTO NEXT WEEK. 21
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
125 PM CDT WED AUG 20 2014
TNZ028>030-201900-
SMITH-TROUSDALE-WILSON-
125 PM CDT WED AUG 20 2014
...SIGNIFICANT WEATHER ADVISORY FOR SMITH...TROUSDALE AND WILSON
COUNTIES...
AT 122 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR HARTSVILLE...MOVING SOUTHEAST AT 15 MPH.
SOME LOCATIONS IN THE PATH INCLUDE HARTSVILLE...DICKERSON CHAPEL
RECREATION AREA AND TUCKERS CROSSROADS.
WINDS 40 TO 50 MPH AND PEA SIZED HAIL ARE EXPECTED WITH THIS STORM.
LAT...LON 3648 8619 3644 8617 3644 8612 3624 8597
3614 8621 3631 8632 3631 8631 3636 8628
3636 8627 3645 8627 3646 8623 3649 8623
27SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
131 PM CDT WED AUG 20 2014
TNZ027-201900-
DAVIDSON-
131 PM CDT WED AUG 20 2014
...SIGNIFICANT WEATHER ADVISORY FOR DAVIDSON COUNTY...
AT 128 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM NEAR HERMITAGE...MOVING SOUTHEAST AT 15 MPH.
SOME LOCATIONS IN THE PATH INCLUDE OLD HICKORY...HERMITAGE AND PERCY
PRIEST LAKE.
PENNY SIZE HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THIS
STORM.
LAT...LON 3625 8663 3624 8659 3614 8656 3614 8652
3611 8654 3610 8652 3606 8652 3606 8653
3609 8655 3604 8656 3602 8660 3616 8676
3629 8669
27The Nashville radar (KOHX), 8 km away, was scanning. The volume nearest the first event began at 18:36 UTC.
30 thunderstorm wind, 2 hail, 2 flood, 1 lightning. Local standard time, as filed.
Several trees were blown down along with some signs damaged in Hermitage at Old Hickory Blvd and Lebanon Road. Other trees and power lines were blown down on Andrew Jackson Parkway and Juarez Road, causing both roads to be closed.
A tree was blown down blocking the roadway at Big Springs Road and Goshen Road.
Numerous trees and power lines were blown down on Page Drive, in the 1700 block of Old Lebanon Dirt Road with building debris in the roadways, and in the 1600 block of Chandler Road with the roadway closed.
Multiple trees and power lines were blown down along Trousdale Ferry Road between Lebanon and Tuckers Crossroads.
A few trees and power lines were blown down across Mount Juliet.
A trained spotter reported a few trees and signs blown down 3 miles north of Lebanon.
A large downburst that struck the Alexandria area in northwest De Kalb County also blew down several trees and power lines in far southwestern Smith County south of Brush Creek.
A trained spotter estimated a wind gust of 60 mph in Alexandria.
A large downburst with winds estimated up to 75 mph struck the Alexandria area. Extensive roof damage was reported to buildings along east Main Street and to structures at the De Kalb County Fairgrounds. Numerous trees and power lines were also blown down.
A house and barn both lost part of their roofs with a tree also falling onto the house on Lower Helton Road. Several other trees were blown down in the area.
Numerous trees and power lines were blown down all across De Kalb County including in Smithville.
Several homes received wind damage to siding and roofs and several trees were blown down around Woodbury.
Multiple trees were blown down countywide including on Old Kentucky Road at Smithville Highway and on Blackburn Mountain Road.
Winds were estimated in excess of 60 mph on Blue Springs Road.
Wilson Count EMA estimated winds around 60 mph between Central Pike and Stewarts Ferry Pike.
A tree was blown down on Blackburn Mountain Road.
A house at 688 Poplar Drive in Rural Hill was heavily damaged due to a fallen tree.
A house was struck by lightning on Clark Drive in Rural Hill which caused a small fire and minor damage to an upstairs room.
A barn at 846 Corinth Road in Rural Hill was blown down onto its side.
Reports from local fire departments and trained spotters indicate major wind damage along Couchville Pike just west of the Wilson County line. Numerous trees and power lines were blown down with several trees falling onto and damaging 3 homes. A porch was also blown off a home at 6450 Couchville Pike. Winds were estimated from damage reports and radar at up to 75 mph.
The roof of a mobile home was blown off on Weakley Lane with multiple trees and power lines down in the area.
A tree reportedly fell on a car in Antioch.
Multiple trees blown down across northern Rutherford County.
Trees were blown down crushing a car and porch of a home on Minnis Road.
The ASOS at Clarksville Outlaw Field measured a wind gust of 71 mph.
The ASOS at Clarksville Outlaw Field measured a wind gust of 75 mph. Although historical wind records are incomplete, this is likely the strongest wind gust ever measured in Clarksville.
Numerous trees were blown down along Highway 76 in eastern Robertson County including at Possum Trot Road.
Trees and power lines were blown down across northern portions of Montgomery County.
A tree was blown down in Clarksville.
Flooding resulted in water covering portions of Maxwell Branch Road.
Areas along Highway 231 near Cedar Forest Road were flooded several feet deep in spots. No roads or homes were reportedly flooded.
Two large oak trees were blown down on Stroudsville Road near the Montgomery County line.
A tree was blown down onto a car on Church Street in Greenbrier.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2014Every state in 2014This day in weather historyWarnings in Tennessee, August 2014
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: 534106, 534141, 534143, 534144, 534146, 534148, 534149, 534151, 534160, 534152, 534157, 534158, 534159, 534206, 534208, 534207, 534209, 534210, 534211, 534217, 534222, 534249, 534284, 534288, 534302, 534304, 534319, 534332, 534321, 534342, 534343, 534346, 534348, 534344, 534345.