A small shower near Smyrna in Rutherford County produced a widely viewed funnel cloud that was captured in photos and video. Radar indicated the shower developed along a collision of several outflow boundaries which may have helped spawn the funnel cloud.
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The episode as NWS OHX wrote it up.
A small shower near Smyrna in Rutherford County produced a widely viewed funnel cloud that was captured in photos and video. Radar indicated the shower developed along a collision of several outflow boundaries which may have helped spawn the funnel cloud.
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 9, 6:15 PM CST, 30 minutes earlier.
Area Forecast Discussion National Weather Service Nashville TN 715 PM CDT Mon Jul 9 2018 .UPDATE... FOR 00Z AVIATION DISCUSSION. && .DISCUSSION... We're in the midst of yet another relatively quiet day across Middle TN. Pinhead showers have finally started to develop along and west of the Tennessee River, as the best instability resides in this area. These are diurnally driven showers and while a thunderstorm or two may arise west of I-65 at some point this afternoon, I don't expect much in the way of coverage. Will maintain the 30 PoP through sunset and end PoPs by 9 pm this evening. Patchy fog will be a possibility after midnight, but should be relegated to areas near waterways. The next couple of days will be interesting in regards to thunderstorm coverage. Yesterday, I focused on Tuesday being the best day of the week for thunderstorm coverage, but looking at the latest suite of models, it could be Wednesday, as Middle TN sits on the east side of an upper level high and a weak boundary pushes into the state. Shear is still greatly lacking, so whether we get the better coverage tomorrow or Wednesday, the most we should see is one or two strong storms each afternoon. Afternoon highs should top out just a couple of degrees above normal, in the low 90s for most. Into the second half of the week, upper-level ridging will begin to build back into the southeastern region which will set the stage for another round of oppressive weather this weekend. Thursday and Friday temps will remain just a few degrees above average with relative humidity values a little lower than we've seen recently. The building ridge will also keep precip chances to a minimum both days. By Saturday the high pressure system will be well established and allow temps to reach well above average and dew point temps will climb back up. Heat index values may reach into the low 100s once again on Saturday and Sunday. Unfortunately there will be no major relief from precip as PoP will remain scattered and diurnally driven. Beyond Sunday, GFS and Euro have differing solutions as to when the upper-level ridging will begin to break down, but I would expect these hot temps to stick around into the beginning of next week. && .AVIATION... 00Z TAF DISCUSSION. Isolated storms are currently moving across eastern Middle Tennessee. Too isolated to include in TAF, but will keep an eye on CSV if update is needed. Other than that scattered cu will linger this evening before diminishing later tonight. Light fog is expected to reduce visibilities at CSV and CKV early Tuesday morning. Winds will remain light and out of the west and northwest through mid day on Tuesday when winds will gradually shift more northerly. Thunder may impact MQY and BNA in the afternoon, have included vcts to account for the chance. However, it will likely be isolated. && .OHX WATCHES/WARNINGS/ADVISORIES... NONE. && DISCUSSION......Unger/MacDonald AVIATION........11
Hazardous Weather Outlook National Weather Service Nashville TN 521 AM CDT Mon Jul 9 2018 TNZ005>011-023>034-056>066-075-077>080-093>095-101030- 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- 521 AM CDT Mon Jul 9 2018 This Hazardous Weather Outlook is for portions of Middle Tennessee. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. 19
The Nashville radar (KOHX), 30 km away, was scanning. The volume nearest the first event began at 00:44 UTC.
1 funnel cloud. Local standard time, as filed.
Facebook and Twitter photos and videos showed a small funnel cloud that lasted for several minutes near I-24 in Smyrna. The funnel cloud did not touch down and no damage occurred. Radar only indicated a tiny shower in the area with no apparent rotation.
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, July 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: 776922.