A weak front tracked through the area triggering scattered thunderstorm in the evening hours. A few of the storms produced a damaging wind downing some trees.
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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.
A weak front tracked through the area triggering scattered thunderstorm in the evening hours. A few of the storms produced a damaging wind downing some trees.
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 31, 6:40 PM EST, 50 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE MORRISTOWN TN 740 PM EDT SAT AUG 31 2013 .AVIATION... VFR CONDITIONS WILL BE THE PREDOMINANT FLIGHT CATEGORY THIS EVENING...BUT SOME TSRA COULD CREATE SOME LOCALIZED MVFR CONDITIONS AT KTYS BTWN 00-04Z. LATER TONIGHT...MVFR TO IFR CONDITIONS WILL DEVELOP FROM FOG AT EACH TERMINAL...BEFORE IT DISSIPATES AFTER SUNRISE AND VFR CONDITIONS RETURN. HOWEVER...SOME SCT TSRA MAY DEVELOP IN THE AFTERNOON AGAIN...THOUGH GIVEN THE LOW CONFIDENCE IN COVERAGE HAVE LEFT OUT OF THE TAF ATTM. && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && AMP
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MORRISTOWN TN 1030 AM EDT SAT AUG 31 2013 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-011000- 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- 1030 AM EDT (930 AM CDT) SAT AUG 31 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST TENNESSEE...SOUTHWEST VIRGINIA...AND EXTREME SOUTHWEST NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON...WITH A FEW STORMS POSSIBLY BECOMING STRONG TO SEVERE. THE MAIN THREATS WILL BE STRONG GUSTY WINDS...LOCALLY HEAVY RAINFALL...AND CLOUD TO GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... AN UPPER LEVEL DISTURBANCE WILL CONTINUE TO PRODUCE SCATTERED SHOWERS AND THUNDERSTORMS ON SUNDAY...WITH A COLD FRONT MOVING THROUGH THE REGION ON LABOR DAY TRIGGERING ADDITIONAL THUNDERSTORMS. SOME STORMS ON BOTH SUNDAY AND MONDAY WILL POSSIBLY BECOME STRONG TO SEVERE...WITH THE MAIN THREATS BEING STRONG GUSTY WINDS...LOCALLY HEAVY RAINFALL...AND CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED ON SUNDAY AND MONDAY.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 809 PM EDT SAT AUG 31 2013 TNZ012-013-037-010100- CAMPBELL TN-SCOTT TN-UNION TN- 809 PM EDT SAT AUG 31 2013 ...SIGNIFICANT WEATHER ADVISORY FOR CAMPBELL...UNION AND SCOTT COUNTIES UNTIL 900 PM EDT... AT 807 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 12 MILES NORTHEAST OF LA FOLLETTE TO 12 MILES NORTHWEST OF ONEIDA...AND MOVING SOUTHEAST AT 25 MPH. PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...ONEIDA...LA FOLLETTE...MAYNARDVILLE...HUNTSVILLE...JACKSBORO...BIG SOUTH FORK NATIONAL REFUGE...ELK VALLEY...FINCASTLE...ROYAL BLUE...SHARPS CHAPEL...NORRIS LAKE...CARYVILLE...ROSE HILL...NORMA...SMOKEY JUNCTION...SLICK ROCK AND LUTTRELL. LOCALLY HEAVY RAINS...IN EXCESS OF ONE INCH PER HOUR...MAY OCCUR WITH THESE THUNDERSTORMS. MOTORISTS SHOULD BE ALERT FOR PONDING OF WATER ON ROADWAYS...AND POSSIBLE MINOR FLOODING OF LOW LYING AREAS. DO NOT DRIVE THROUGH WATERS OF UNKNOWN DEPTH. TURN AROUND! DON'T DROWN! GDC
The Knoxville radar (KMRX), 107 km away, was scanning. The volume nearest the first event began at 00:30 UTC.
2 thunderstorm wind. Local standard time, as filed.
Law enforcement personnel reported a few trees downed by thunderstorm wind in Oneida.
Law enforcement personnel reported several trees downed by thunderstorm wind 5 miles southeast of Norris along the Norris Freeway near the Knox county line.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2013Every state in 2013This day in weather historyWarnings in Tennessee, August 2013
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: 474181, 474182.