Scattered strong thunderstorms developed across southern Middle Tennessee during the afternoon hours on July 20. One report of minor wind damage was 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.
Scattered strong thunderstorms developed across southern Middle Tennessee during the afternoon hours on July 20. One report of minor wind damage was 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 Jul 20, 11:28 AM CST, 1 hour 32 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 1228 PM CDT MON JUL 20 2015 .UPDATE... FOR 18Z AVIATION. && .DISCUSSION... FAIRLY QUIET MORNING ACROSS MIDDLE TN. HIGH CLOUDS THAT BLANKETED THE AREA OVER THE LAST SEVERAL HOURS ARE FINALLY STARTING TO THIN OUT AND WILL ALLOW TEMPERATURES TO BEGIN CLIMBING TOWARDS FORECAST HIGHS. ALONG WITH THE HIGH DEW POINTS...HEAT INDEX VALUES WILL CLIMB INTO THE 105-108 RANGE OVER THE NEXT FEW HOURS. HAVE REMOVED POPS FROM THE MORNING HOURS...BUT LEFT IN SCATTERED ACTIVITY FOR THE AFTERNOON AS OUTFLOW BOUNDARIES LIE AROUND THE AREA AND ARE WAITING FOR CONVECTIVE TEMPERATURES TO BE MET. THERE WILL PROBABLY BE A FEW THUNDERSTORMS AROUND...SOME OF WHICH WILL BRING BRIEF HEAVY RAINFALL AND THE POTENTIAL FOR STRONG GUSTY WINDS AS WE MOVE TOWARDS THE 2-3 PM TIME FRAME. UPDATES ARE ON THE WAY. UNGER && .AVIATION... 18Z TAF DISCUSSION. VFR CONDITIONS EXPECTED FOR MOST OF THIS TAF CYCLE. ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON...AND WHILE THEY SHOULD BE SCATTERED ENOUGH TO REFRAIN FROM ADDING PREVAILING LINES...THEY MAY CREEP CLOSE ENOUGH TO KBNA/KCSV TO WARRANT A VCTS. OTHERWISE...8-10 KT WEST WINDS THIS AFTERNOON...RELAXING ENOUGH TO BRING SOME MVFR TO KCSV BY DAYBREAK. UNGER && .OHX WATCHES/WARNINGS/ADVISORIES... HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR BEDFORD-CANNON- CHEATHAM-COFFEE-DAVIDSON-DE KALB-DICKSON-GILES-HICKMAN-HOUSTON- HUMPHREYS-LAWRENCE-LEWIS-MACON-MARSHALL-MAURY-MONTGOMERY-PERRY- ROBERTSON-RUTHERFORD-SMITH-STEWART-SUMNER-TROUSDALE-WAYNE- WILLIAMSON-WILSON. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NASHVILLE TN 459 AM CDT MON JUL 20 2015 TNZ005>011-023>034-056>066-075-077>080-093>095-211030- 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- 459 AM CDT MON JUL 20 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT HEAT ADVISORY IN EFFECT TODAY FOR AREAS WEST OF THE CUMBERLAND PLATEAU...WHERE AFTERNOON HIGH TEMPERATURES WILL BE IN THE MIDDLE 90S...AND HEAT INDICES WILL TOP OUT AROUND 105 DEGREES. HOT WEATHER SAFETY WILL BE A TOP PRIORITY. YOU SHOULD TRY AND LIMIT YOUR TIME OUTDOORS DURING THE HOTTEST PART OF THE DAY...AND AVOID STRENUOUS ACTIVITY. KEEP YOUR BODY HYDRATED BY DRINKING SUFFICIENT AMOUNTS OF WATER. ISOLATED STRONG THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON...AND WILL BRING ALONG HEAVY DOWNPOURS AND GUSTY WINDS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY HOT SUMMER WEATHER WILL CONTINUE THROUGHOUT THE REMAINDER OF THE WEEK AND INTO NEXT WEEKEND AS WELL. MAXIMUM AFTERNOON HEAT INDEX VALUES WEST OF THE CUMBERLAND PLATEAU WILL START OUT IN THE MID TO UPPER 90S DURING THE FIRST PART OF THE PERIOD...BUT CREEP BACK TO AROUND 100 DEGREES BY NEXT WEEKEND. YOU SHOULD KEEP HOT WEATHER SAFETY IN MIND...AND AVOID STRENUOUS ACTIVITY DURING THE HOTTEST PART OF THE DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The Nashville radar (KOHX), 97 km away, was scanning. The volume nearest the first event began at 18:59 UTC.
1 thunderstorm wind. Local standard time, as filed.
A power line was blown down in Centerville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2015Every state in 2015This day in weather historyWarnings in Tennessee, July 2015
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: 596102.