Isolated showers and thunderstorms developed once again during the afternoon hours across portions of Middle Tennessee. One report of minor flooding was received.
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.
Isolated showers and thunderstorms developed once again during the afternoon hours across portions of Middle Tennessee. One report of minor flooding 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 Aug 6, 12:27 PM CST, 2 hours 3 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 127 PM CDT MON AUG 6 2012 .UPDATE...FOR 18Z AVIATION FORECAST && .AVIATION... SHEAR AXIS DOWN THROUGH WESTERN TENNESSEE WITH CONVECTION PRETTY MUCH CONFINED ALONG AND EAST OF THIS AXIS. MODELS GRADUALLY SHIFT AXIS EASTWARD TODAY AND TONIGHT SO AM EXPECTING ANY CONVECTION TONIGHT AND DURING THE DAY TUESDAY TO BE MAINLY EASTERN AREAS AND PLATEAU. WITH WET GROUND...EXPECT WE WILL SEE FOG OVERNIGHT SO HAVE LOWERED VSBYS AT ALL TEMINALS. CSV COULD GO AS LOW AS 1/4SM AFTER 10Z BUT IMPROVE TO VFR AFTER 14Z. BOYD && .PREV DISCUSSION... /ISSUED 1009 AM CDT MON AUG 6 2012/ UPDATE... LATEST RADAR IMAGERY SHOWS BULK OF SHOWER AND THUNDERSTORM ACTIVITY HAS MOVED EAST OF THE MID STATE. HOWEVER...SOME WIDELY SCATTERED CONVECTION REMAINS ACROSS THE SOUTHEASTERN HALF OF THE CWA. WITH COLD FRONT ANALYZED JUST INSIDE THE NORTHWEST TIP OF STEWART COUNTY PER LAPS ANALYSIS...ATMOSPHERE REMAINS QUITE MOIST AHEAD OF THE BOUNDARY WITH PWATS GENERALLY IN THE 1.75-2.00 INCH RANGE. THUS ADDITIONAL ISOLATED TO SCATTERED SHOWERS AND STORMS ARE EXPECTED THROUGH THE AFTERNOON WITH HIGHEST COVERAGE ON THE PLATEAU...AND HAVE ONLY LOWERED POPS SLIGHTLY BASED ON LATEST RADAR TRENDS. EARLIER RAINFALL AND CURRENT WIDESPREAD CLOUD COVER PER VISIBLE SATELLITE IMAGERY WILL LIKELY KEEP TEMPS FROM REACHING CURRENT FORECAST HIGHS OVER SOUTHEASTERN HALF...AND HAVE NUDGED TEMPS DOWN A FEW DEGREES. ALSO MADE MINOR ADJUSTMENTS TO SKY COVER AND OTHER GRIDS...BUT REST OF FORECAST GENERALLY ON TRACK. PREV DISCUSSION... /ISSUED 628 AM CDT MON AUG 6 2012/ UPDATE...ADDED AVIATION SECTION FOR 12Z TAF'S. AVIATION...BNA/CKV/CSV...MESSY MORNING ACROSS MIDDLE TENNESSEE, WITH RAIN AND FOG COVERING THE CUMBERLAND PLATEAU, AND MAINLY LIGHT FOG ELSEWHERE. CONDITIONS WILL GRADUALLY IMPROVE DURING THE MORNING AS THE RAIN SLIDES EASTWARD, BUT EXPECT RE-DEVELOPMENT BY AFTERNOON AS WE HEAD TOWARD PEAK-HEATING HOURS. PRECIPITABLE WATER VALUES REMAIN SKY-HIGH, AND WITH A WEAK SURFACE FRONT STILL IN THE AREA, CONVECTION IS EXPECTED TO REGENERATE, MOST LIKELY ALONG THE PLATEAU. LOOK FOR FOG TO DEVELOP ONCE AGAIN OVERNIGHT. PREV DISCUSSION... /ISSUED 305 AM CDT MON AUG 6 2012/ DISCUSSION...DRIER AIR...MAINLY ABOVE 850MB PUSHES INTO THE AREA TODAY. HOWEVER...WITH NW TO SE GRADIENT OF LOW LEVEL MOISTURE...EXPECT TO SEE MORE TSTMS TODAY...MAINLY IN THE SE HALF. I KEEP THE CHANCE OF TSTMS FOR TNGT THROUGH TUE NGT LIMITED TO THE SE SECTIONS...DUE TO AVAILABILITY OF MOISTURE...BETTER INSTABILITY AND THE PROXIMITY OF THE STALLED FRONT JUST TO THE SOUTH OF THE AREA. THEN MOISTURE BEGINS TO RECOVER SOMEWHAT IN ADVANCE OF THE NEXT FRONT. THE NEXT FRONT MOVES DROPS OUT OF THE MIDWEST ON THU WITH POPS INCREASING TO CHANCE LEVEL. SOUTH FLOW IS RATHER ANEMIC AND SHORT LIVED AHEAD OF THIS FRONT. THUS...HPC IS KEEPING RAINFALL AHEAD OF THIS FRONT AT 0.50 INCHES OF LESS IN THEIR DAY 4-5 GRAPHIC. FRONT ARRIVES IN THE AREA ON FRI AND PUSHES MOST MOISTURE SWD INTO THE GULF COASTAL REGIONS BY SAT EVE. ECM SEEMS TO AGREE. THUS A DECENT COOL DOWN IS IN THE OFFING WITH HIGH TEMPS ON SAT IN THE MID 80S...NEAR 80 PLATEAU. KEPT SAT/SAT NGT RAIN-FREE BUT BRING BACK A SLIGHT CHANCE FOR SUN AND MON AS AN H5 SHORTWAVE DROPS SEWD IN OUR NWLY FLOW ALOFT. CPC 6-10 DAY OUTLOOK HAS SLIGHTLY BELOW NORMAL TEMPS AND PRECIP FOR MOST OF THE AREA. WOOHOO! NO MORE MID 90S FOR A WHILE. && .OHX WATCHES/WARNINGS/ADVISORIES... NONE. && 01
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NASHVILLE TN 504 AM CDT MON AUG 6 2012 TNZ005>011-022>034-056>066-075-077>080-093>095-071030- 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- 504 AM CDT MON AUG 6 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE FORECAST AGAIN TODAY. WHILE SEVERE STORMS ARE UNLIKELY, A FEW STORMS MAY BECOME STRONG, WITH SMALL HAIL AND GUSTY WINDS. ALSO, THE HEAVIEST CELLS MAY PRODUCE VERY HEAVY RAINFALL, WHICH MAY LEAD TO BRIEF, LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ROSE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1032 AM CDT MON AUG 06 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM FLASH FLOOD 4 NW SPARTA 35.98N 85.52W
08/05/2012 WHITE TN EMERGENCY MNGR
TWO ROADS CLOSED IN THE COUNTY DUE TO FLASH FLOODING
&&
SHAMBURGERThe national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Heavy rainfall reportedly caused high water in yards of homes in and around Lawrenceburg with a few brief road closures due to minor flooding.
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, August 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: 398244.