A boundary lingering across the area triggered diurnal thunderstorms during the heat of day. Some storms became severe producing damaging thunderstorm winds and large hail.
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 MRX wrote it up.
A boundary lingering across the area triggered diurnal thunderstorms during the heat of day. Some storms became severe producing damaging thunderstorm winds and large hail.
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 Jun 15, 12:16 PM EST, 3 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 116 PM EDT TUE JUN 15 2010 .AVIATION...CONVECTION ACTIVE ON THE HIGHER TERRAIN FEATURES THIS AFTERNOON AND WITH OUTFLOW SHOWERS AND THUNDERSTORMS HAVE A GOOD CHANCE OF DRIFTING INTO THE GREAT VALLEY AND ACROSS THE TERMINALS. BEST LIKLIEHOOD APPEARS TO BE AT CHA AND TYS BUT CERTAINLY IS ALSO POSSIBLE AT TRI. DECIDED TO USE A TEMPO GROUP FOR CONVECTION AT CHA AND TYS FOR NOW. ACTION QUIETS DOWN AGAIN TONIGHT WITH SOME IFR/LIFR CONDITIONS DUE TO THE HIGH LOW LEVEL MOISTURE CONTENT WITH SATURATION AT TRI TOWARD DAYBREAK. CONVECTION SHOULD GET GOING AGAIN LATE MORNING AROUND THE TERMINALS ON WEDNESDAY WITH NICE MOISTURE/INSTABILITY AXIS AHEAD OF GREAT LAKES/OHIO VALLEY SHORTWAVE TROF. && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 500 AM EDT TUE JUN 15 2010 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-161000- 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- 500 AM EDT (400 AM CDT) TUE JUN 15 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST TENNESSEE...SOUTHWEST VIRGINIA AND EXTREME SOUTHWEST NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT A HOT AND VERY HUMID AIR MASS WILL HELP TO TRIGGER SCATTERED SHOWERS AND THUNDERSTORMS TODAY...WITH A FEW ISOLATED STORMS BECOMING STRONG TO SEVERE THIS AFTERNOON AND EVENING. THE MAIN THREATS WILL BE THE POSSIBILITY OF DAMAGING WINDS...LOCALLY HEAVY RAINFALL...AND CLOUD TO GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A TYPICAL SUMMERTIME PATTERN WILL CONTINUE ACROSS THE REGION THIS WEEK...WITH A FEW ISOLATED STRONG TO SEVERE STORMS POSSIBLE EACH DAY. THE MAIN THREATS THROUGHOUT THE PERIOD WILL CONTINUE TO BE THE POSSIBILITY OF DAMAGING WINDS...LOCALLY HEAVY RAINFALL...AND CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED DUE TO THE ISOLATED NATURE OF THE EXPECTED SEVERE THREAT. DMG
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1156 AM EDT TUE JUN 15 2010 TNZ041-072-074-151700- BLOUNT SMOKY MOUNTAINS TN-COCKE SMOKY MOUNTAINS TN-SEVIER SMOKY MOUNTAINS TN- 1156 AM EDT TUE JUN 15 2010 ...SIGNIFICANT WEATHER ADVISORY FOR SEVIER...COCKE AND EXTREME EASTERN BLOUNT COUNTIES UNTIL 100 PM EDT... AT 1154 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR GATLINBURG...MOVING SOUTHEAST AT 5 MPH. SMALL HAIL AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MAINLY RURAL AREAS OF COCKE AND SEVIER COUNTIES. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. DH
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1252 PM EDT TUE JUN 15 2010 TNZ083-084-099-100-151745- BRADLEY TN-HAMILTON TN-MEIGS TN-RHEA TN- 1252 PM EDT TUE JUN 15 2010 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BRADLEY...HAMILTON... MEIGS AND EXTREME SOUTHERN RHEA COUNTIES UNTIL 145 PM EDT... AT 1249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9 MILES NORTHEAST OF SODDY-DAISY...OR 9 MILES SOUTH OF DAYTON...MOVING EAST AT 10 MPH. SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CHARLESTON... BIRCHWOOD AND BIG SPRING. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES PRIMARY KILLERS ASSOCIATED WITH THUNDERSTORMS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. DH
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
117 PM EDT TUE JUN 15 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0530 PM TSTM WND DMG W ALCOA 35.79N 83.98W
06/14/2010 BLOUNT TN UTILITY COMPANY
3 TREES DOWN ON POWER LINES IN AND AROUND LOUISVILLE
BETWEEN 5 AND 6 PM
0330 PM TSTM WND DMG 15 NE ROGERSVILLE 36.56N 82.81W
06/14/2010 HAWKINS TN DEPT OF HIGHWAYS
1 TREE DOWN ON TAPINE VALLEY ROAD AND 1 TREE DOWN ON
GOSHEN VALLEY ROAD NE OF ROGERSVILLE
&&
MJBThe Knoxville radar (KMRX), 119 km away, was scanning. The volume nearest the first event began at 17:19 UTC.
18 thunderstorm wind, 4 hail, 1 flash flood. Local standard time, as filed.
The Roosevelt ETOS north of Rockwood recorded a wind gust to 60 mph (52 kts).
A trained spotter reported thunderstorms produced nickle-size hail in Farragut.
A trained spotter reported thunderstorms produced golfball-size hail in Farragut.
A trained spotters reported thunderstorms produced quarter-size hail in Farragut.
Law enforcement personnel reported multiple trees and powerlines downed by thunderstorm winds near Etowah.
Law enforcement personnel reported 1 tree downed by thunderstorm winds along Asheville Highway in Knoxville.
Law enforcement personnel reported numerous trees and powerlines downed by thunderstorm winds across much of the western half of the county.
A trained spotter reported numerous trees downed by thunderstorm winds on Russell Gap Road southwest of New Market.
Law enforcement personnel reported numerous trees downed by thunderstorm winds across the northeast portions of the county.
Emergency management personnel reported thunderstorm produced dime to nickle-sized hail in Brainerd and east Brainerd.
Emergency management personnel reported numerous trees and powerlines downed by thunderstorm winds countywide.
Law enforcement personnel reported numerous trees and powerlines downed by thunderstorm winds between Collegedale and Apison.
Emergency management personnel reported many roads across the county, especially near Pikeville covered by high water from a slow moving thunderstorms.
Law enforcement personnel reported several trees downed by thunderstorm winds in Piney Flats.
Law enforcement personnel reported several trees and powerlines downed by thunderstorm winds in and around Jasper.
Amateur radio personnel reported 1 tree downed by thunderstorm winds east of Cleveland along Highway 64.
Law enforcement personnel reported a few trees downed by thunderstorm winds along Highway 60 southeast of Birchwood.
Law enforcement personnel reported numerous trees and powerlines downed by thunderstorm winds countywide.
Law enforcement personnel reported 1 tree downed by thunderstorm winds along Highway 64 southeast of Benton.
Law enforcement personnel reported several trees and powerlines downed by thunderstorm winds in and around Jasper.
Law enforcement personnel reported 3 trees downed by thunderstorm winds between Rockwood and the Cumberland County line.
Law enforcement personnel reported 1 tree downed by thunderstorm winds along County Route 315 near Reliance.
Law enforcement personnel reported 1 tree downed by thunderstorm winds northwest of Tellico Plains.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2010Every state in 2010This day in weather historyWarnings in Tennessee, June 2010
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: 230310, 230311, 230313, 230315, 230317, 230319, 230328, 230341, 230347, 230358, 230338, 230589, 241603, 230614, 230353, 230595, 230598, 230600, 230604, 230582, 230607, 230610, 230612.