As a few thunderstorms persisted across Middle Tennessee during the early morning hours of Sunday, July 8th, a couple of thunderstorms across Dickson and Humphreys county reached severe thresholds, resulting in thunderstorm wind damage. Later in that day during the afternoon through evening hours, scattered to numerous thunderstorms that developed across several counties reached severe…
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.
As a few thunderstorms persisted across Middle Tennessee during the early morning hours of Sunday, July 8th, a couple of thunderstorms across Dickson and Humphreys county reached severe thresholds, resulting in thunderstorm wind damage. Later in that day during the afternoon through evening hours, scattered to numerous thunderstorms that developed across several counties reached severe thresholds, resulting in thunderstorm wind damage, large hail, and lightning strike damages.
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 7, 11:07 PM CST, 53 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 1207 AM CDT SUN JUL 8 2012 .UPDATE...FOR AVIATION. && .AVIATION... 06Z TAFS...SCT TSRA AFFECTING THE KBNA AREA WILL CONTINUE TO MOVE WNW NEAR 10KT POSSIBLY IMPACTING KCKV THROUGH 08Z. BRIEF DOWNPOURS AND GUSTS AROUND 30KT WILL BE COMMON WITH ANY TSRA. AFTER 08Z...LIGHT WIND AND VFR CONDITIONS EXPECTED THROUGH MIDDAY SUNDAY. SCT TSRA WILL DEVELOP AGAIN SUNDAY AFTERNOON...BECOMING MORE NUMEROUS BY SUNDAY EVENING AS A FRONT APPROACHES FROM THE NORTH. 13 && .PREV DISCUSSION... /ISSUED 851 PM CDT SAT JUL 7 2012/ UPDATE... PER CURRENT REGIONAL SATELLITE AND RADAR TRENDS...ALONG WITH SFC OBS... AND TAKING A LOOK AT THE KOHX 00Z SUN UPPER AIR PROFILE AND INDICES... BELIEVE THAT THERE MAYBE A SLIGHT CHANCE OF SHWRS/TSTMS BEFORE MIDNIGHT... BUT...LIKE THE PREVIOUS NIGHTS...WILL KEEP THE MID STATE DRY OVERNIGHT. THIS THE RESULT OF A CONTINUANCE THROUGHOUT THE NIGHT AT LEAST OF THE CURRENT UPPER LEVEL RIDGING PATTERN AND DIFFUSE HIGH PRESSURE SFC PATTERN. OVERNIGHT LOWS SEEM GENERALLY IN LINE WITH CURRENT TEMPS AND FORECASTED VALUES AND WILL THUS NOT MAKE ANY SIGNIFICANT CHANGES AT THIS TIME ALSO. HAVE UPDATED THE SUITE OF FORECAST PRODUCTS TO REFLECT THE ABOVE REASONING. 31 PREV DISCUSSION.../ISSUED 421 PM CDT SAT JUL 7 2012/ SHORT TERM...UPPER LEVEL RIDGE WILL BEGIN TO BREAK DOWN THIS WEEKEND AND GIVE WAY TO A TROUGH THAT WILL SETTLE OVER THE EASTERN U.S. POPS WILL INCREASE THROUGH SATURDAY NIGHT AND SUNDAY. TEMPERATURES WILL FINALLY BEGIN TO SHY AWAY FROM THE HUNDREDS AS MORE MOISTURE ENTERS THE AREA OVER THE NEXT COUPLE OF DAYS. DIURNAL HEATING ALONG WITH THE APPROACHING FRONT WILL GIVE THE NORTHERN PORTION OF OUR AREA A HIGHER CHANCE OF STRONG TO SEVERE STORMS ON SUNDAY. INCREASED POPS MONDAY MORNING AS A COLD FRONT, ASSOCIATED WITH AN UPPER LEVEL TROUGH, BEGINS TO MOVE SOUTHEAST ACROSS THE AREA. SOUNDINGS INDICATE PWAT VALUES CLIMBING AND TOPPING OUT AROUND 2 INCHES ON MONDAY ALONG WITH PLENTY OF INSTABILITY. LOW TEMPERATURES EXPECTED TO REMAIN IN THE MID TO LOW 70S AT NIGHT AND FALL FROM THE UPPER 90S ON SUNDAY TO THE UPPER 80S ON MONDAY. CLOUD COVER INCREASES AS THE COLD FRONT SETTLES IN ON MONDAY AND STICKS AROUND INTO THE LONG TERM. LONG TERM...TEMPS EXPECTED TO REMAIN NEAR NORMAL...HIGHS IN THE UPPER 80S, LOWS NEAR 70. FRONTAL BOUNDARY APPEARS TO STALL AND LOOKS LIKE IT COULD BRING A DECENT AMOUNT OF RAIN TO THE SOUTHEAST COUNTIES OF THE MID-STATE. INSTABILITY ALONG THE BOUNDARY WILL ENCOURAGE SCATTERED THUNDERSTORMS THROUGHOUT THE LONG TERM FORECAST. 11 && .OHX WATCHES/WARNINGS/ADVISORIES...NONE. &&
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NASHVILLE TN 724 PM CDT SAT JUL 7 2012 TNZ005>011-022>034-056>066-075-077>080-093>095-081000- STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON- 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- 724 PM CDT SAT JUL 7 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR LOCATIONS GENERALLY ALONG AND NORTH OF INTERSTATE 4O ON SUNDAY. MAIN CONCERN WITH SEVERE THUNDERSTORMS THAT DO DEVELOP WILL BE DAMAGING WINDS AND LARGE HAIL. NUMEROUS THUNDERSTORMS ARE EXPECTED ON MONDAY...WITH ISOLATED TO SCATTERED THUNDERSTORMS EXPECTED TUESDAY THROUGH FRIDAY. A FEW STORMS MAY REACH STRONG THRESHOLDS. WITH STRONG THUNDERSTORMS THAT DO DEVELOP...STRONG WINDS...BRIEF HEAVY RAINFALL...FREQUENT CLOUD TO GROUND LIGHTNING STRIKES...AND HAIL WILL BE THE MAIN CONCERNS. .SPOTTER CALL TO ACTION STATEMENT... REPORTS FROM TRAINED WEATHER SPOTTERS MAY BE NEEDED. SPOTTER THUNDERSTORM REPORTING CRITERIA... TORNADO FUNNEL CLOUD FLOODING HAIL >= 1/2 INCH WINDS > 50 MPH (MEASURED) STRUCTURAL DAMAGE TREES OR POWER LINES DOWN 31
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 1121 PM CDT SAT JUL 7 2012 TNZ025>027-080445- CHEATHAM-DAVIDSON-DICKSON- 1121 PM CDT SAT JUL 7 2012 ...SIGNIFICANT WEATHER ADVISORY FOR CHEATHAM...DAVIDSON AND DICKSON COUNTIES... AT 1118 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES NORTHWEST OF BELLE MEADE...OR 8 MILES WEST OF NASHVILLE...MOVING NORTHWEST AT 20 MPH. PEOPLE IN CENTRAL CHEATHAM...NORTHEASTERN DICKSON AND WESTERN DAVIDSON COUNTIES...INCLUDING THE CITY OF ASHLAND CITY...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. SMALL HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. LAT...LON 3611 8729 3640 8715 3626 8675 3607 8688 13
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1127 PM CDT SAT JUL 7 2012
TNZ007-008-027-028-080530-
DAVIDSON-ROBERTSON-SUMNER-WILSON-
1127 PM CDT SAT JUL 7 2012
...SIGNIFICANT WEATHER ADVISORY FOR DAVIDSON...ROBERTSON...SUMNER AND
WILSON COUNTIES...
AT 1124 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR HENDERSONVILLE...OR 11 MILES SOUTHWEST OF
GALLATIN...MOVING NORTHWEST AT 10 MPH.
PEOPLE IN NORTHERN DAVIDSON...NORTHWESTERN WILSON...SOUTHERN
ROBERTSON AND SOUTHWESTERN SUMNER COUNTIES...INCLUDING THE CITIES OF
GREEN HILL...LAKEWOOD...HENDERSONVILLE...GOODLETTSVILLE...
MILLERSVILLE AND RIDGETOP...SHOULD MONITOR THE WEATHER SITUATION
CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE
APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.
SMALL HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.
LAT...LON 3630 8644 3615 8656 3629 8694 3637 8691
3653 8679
13PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1234 AM CDT SUN JUL 08 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1220 AM TSTM WND DMG CHARLOTTE 36.18N 87.35W
07/08/2012 DICKSON TN PUBLIC
TREES REPORTED BLOWN DOWN. TIME ESTIMATED FROM RADAR.
&&
SHAMBURGERPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1244 AM CDT SUN JUL 08 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1235 AM TSTM WND DMG DICKSON 36.08N 87.38W
07/08/2012 DICKSON TN LAW ENFORCEMENT
NUMEROUS TREES DOWN IN THE CITY OF DICKSON. VERY HEAVY
RAINFALL AND FREQUENT DANGEROUS LIGHTNING.
&&
04The national radar mosaic for the moment the first event began.
23 thunderstorm wind, 5 lightning, 1 hail. Local standard time, as filed.
Trees and power lines were blown down in Tennessee City along U.S. Highway 70.
Several trees were blown down on Trace Creek Road and U.S. Highway 70 in McEwen.
Several trees were blown down between Camden and Interstate 40.
Several trees were downed on Old Highway 48 in Pinewood.
A tree was downed across State Highway 48 about 12-15 miles north of Centerville.
Multiple trees were downed across Fairview Road and some of the surrounding roads.
Two trees were downed on Maplewood Trace near Briley Parkway and I-65.
As reported by Smyrna PD, a report of tree down near the intersection of Davis Park Drive and Windellwood Circle, one mile south of Smyrna.
A lightning strike resulted in an electrical transformer being damaged.
At 201 Grizzard Avenue, a tree knocked down power wires.
At 401 Springview Drive, a tree fell onto power lines.
Numerous traffic light wires were downed and power outages occurred at other traffic lights at intersections in west Nashville.
Several trees along with some power lines and traffic wires were downed in southern Davidson County.
Several trees and power lines were downed across the county.
A tree was reported downed near the intersection of Linwood Road and Roberts Road.
Fifty year old female was struck by lightning on Anderson Lane. She refused to be transported to a local hospital in an ambulance but her family transported her to the hospital. Final condition of female was unknown.
Several trees and power lines were downed across eastern portions of the county.
A tree was downed at 2340 Bluebird Road.
Several trees were downed on McCormick Ridge Road in the Union Hill Community.
A lightning strike resulted in a grass fire that burned five acres of a field near Nimm Road close to the Clay/Macon County lines.
Lightning hit a tree that caused a fire in a field near Underwood Road.
Several trees were downed across the county.
A few trees were downed on roadways across the county.
Several trees were downed across the western half of the county, including downed tress on McCormick Ridge Road and other areas in the Union Hill community, and also on Baptist Ridge Road.
Two large trees were downed and blocking Windle Community Road near Livingston.
Several trees were downed across the county.
Lightning struck a home in the 5800 block of Cloverland Park Drive and started a fire that caused heavy damage to the home.
Numerous trees and large tree limbs were blown down in Hermitage along Old Hickory Boulevard and in Donelson on Lebanon Road and Stewarts Ferry Pike.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2012Every state in 2012This day in weather historyWarnings in Tennessee, July 2012
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: 400479, 400478, 400567, 400561, 400480, 400570, 400481, 400568, 392499, 400482, 400483, 400552, 400554, 400553, 400557, 392501, 391667, 400555, 400559, 400564, 392505, 392506, 400556, 400560, 400563, 400562, 400565, 392512, 400566.