Slow moving early evening thunderstorms produced localized heavy rainfall, resulting in flash flooding.
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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 MRX wrote it up.
Slow moving early evening thunderstorms produced localized heavy rainfall, resulting in flash flooding.
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 Morristown, TN wrote its last area forecast discussion before the first event at Aug 8, 1:05 PM CST, 3 hours 50 minutes earlier.
Area Forecast Discussion National Weather Service Morristown TN 305 PM EDT MON AUG 8 2016 .SHORT TERM...(Tonight and Tomorrow)... This afternoons convection will slowly fade tonight as we lose our daytime heating. Before things settle down completely, a few showers and storms may still produce locally heavy downpours as the atmosphere continues to remain very moist with PWS near or above record values. Some of these downpours could lead to localized flooding due to slow storm motions and the aforementioned moist environment. Overnight forecast a little challenging as there is some model disagreement. NAM and HRR show another wave of moisture moving up through the Carolinas overnight and into our area after midnight, allowing for more showers. The GFS and RAP do not show these solutions. Will still lower pops to slight chance for most areas as we go through the night but will maintain low-end chance pops for our far eastern mountains to account for possible showers moving in out of the Carolinas as previously mentioned. Some patchy fog will be possible for areas that receive rain. Temps will be mild overnight with lows in the lower 70s. Expecting more diurnal convection tomorrow as the pattern goes relatively unchanged. However, only chance pops in place due to strengthening downslope winds expected during the afternoon hours. This will help to limit convective coverage, especially across the foothills of our eastern mountains. Highs tomorrow will again be in the upper 80s to low 90s. Possibilty for localized heavy downpours and flooding in place again tomorrow. .LONG TERM...(Tuesday Night through Monday)... A ridge of high pressure will slowly establish itself just to the east of the region...which will promote a downslope flow for most of the work week ahead. Each day will be similar...with highs peaking in the upper 80s to lower 90s...along with some partly sunny conditions during the morning...with increasing clouds in the afternoon. The one adjustment continues to be models slightly overdoing convection prospects. Think that scattered convection is probable each day...but will be lower in the valley (typical for this pattern) than what is being depicted. Given the very high PWATs...any convection that does fire will be capable of producing locally heavy rainfall and some flooding. The ridge flattens heading into the weekend and shifts east as a weak upper-trough swings into the Ohio Valley. This feature will drag a weak front into the region late in the period...increasing rain chances and cloud cover heading into the new week. This will also result in some slightly cooler temperatures...and a break from the 90s....as highs in the 80s will be common. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 74 90 74 90 / 30 50 30 50 Knoxville McGhee Tyson Airport, TN 73 91 73 92 / 40 40 10 30 Oak Ridge, TN 74 91 73 91 / 40 40 20 30 Tri Cities Airport, TN 70 89 69 89 / 40 30 10 30 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && SR/AMP
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 312 PM EDT MON AUG 8 2016 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-091915- CHEROKEE-CLAY-SCOTT TN-CAMPBELL-CLAIBORNE-HANCOCK-HAWKINS- SULLIVAN-JOHNSON-MORGAN-ANDERSON-UNION-GRAINGER-HAMBLEN- NORTHWEST COCKE-COCKE SMOKY MOUNTAINS-NORTHWEST GREENE- SOUTHEAST GREENE-WASHINGTON TN-UNICOI-NORTHWEST CARTER- SOUTHEAST CARTER-ROANE-LOUDON-KNOX-JEFFERSON-NW BLOUNT- BLOUNT SMOKY MOUNTAINS-NORTH SEVIER-SEVIER SMOKY MOUNTAINS- SEQUATCHIE-BLEDSOE-RHEA-MEIGS-MCMINN-NORTHWEST MONROE- SOUTHEAST MONROE-MARION-HAMILTON-BRADLEY-WEST POLK-EAST POLK-LEE- WISE-SCOTT-RUSSELL-WASHINGTON- 312 PM EDT MON AUG 8 2016 /212 PM CDT MON AUG 8 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT... SLOW MOVING THUNDERSTORMS WILL BRING VERY HEAVY RAIN TO SOME LOCATIONS AND LOCALIZED FLOODING WILL BE POSSIBLE...ESPECIALLY DURING THE AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... SCATTERED THUNDERSTORMS WILL BE POSSIBLE EACH DAY THIS WEEK...A FEW WHICH COULD BECOME LOCALLY STRONG. THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL TO SOME AREAS...AND LOCALIZED FLOODING DUE TO THE THEIR SLOW MOVEMENT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
633 PM EDT MON AUG 08 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0615 PM FLASH FLOOD NORTON 36.93N 82.63W
08/08/2016 CITY OF NORTON VA 911 CALL CENTER
SEVERAL ROADWAYS AND BUSINESSES UNDERWATER.
&&
DHPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
655 PM EDT MON AUG 08 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0655 PM FLASH FLOOD 5 SSW PIKEVILLE 35.54N 85.23W
08/08/2016 BLEDSOE TN PUBLIC
SEVERAL ROADWAYS FLOODED ACROSS THE SOUTHERN HALF OF THE
COUNTY.
&&
DHThe Northeast Alabama radar (KHTX), 110 km away, was scanning. The volume nearest the first event began at 22:54 UTC.
1 flash flood. Local standard time, as filed.
Several roadways flooded in the southern portion of the county, including Hwy 127.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2016Every state in 2016This day in weather historyWarnings in Tennessee, August 2016
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: 660379.