Convection developed along an outflow boundary during the afternoon and moved into Northeast Tennessee. Some of the convection produced severe wind gusts.
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.
Convection developed along an outflow boundary during the afternoon and moved into Northeast Tennessee. Some of the convection produced severe wind gusts.
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 Jul 13, 1:36 PM EST, 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 236 PM EDT TUE JUL 13 2010 .SHORT TERM...(TONIGHT AND WEDNESDAY)...ABRUPT END TO CONVECTION ANTICIPATED EARLY IN THE FIRST PERIOD AS UPPER TROUGH AXIS SWINGS THROUGH THE SOUTHERN APPALACHAIN REGION. MUCH DRIER AIR AT ALL LEVELS FOLLOWS TROUGH AXIS AS FLOW BECOMES NORTHWESTERLY. SURFACE HIGH PRESSURE BUILDS INTO THE REGION FOR TOMORROW RESULING IN GENERALLY DRY CONDITIONS. FOR TEMPS...GENERALLY DID NOT DEVIATE FROM MAV GUIDANCE AS THEY APPEAR REASONABLE. .LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)... SURFACE HIGH PRESSURE WILL BE LOCATED OVER THE CENTRAL AND SOUTHERN APPALACHIANS ON WEDNESDAY NIGHT AND THURSDAY...WHILE A MIDLEVEL RIDGE WILL EXTEND FROM THE SOUTHERN MS VALLEY ACROSS THE TN VALLEY. SUBSIDENCE BENEATH THE UPPER RIDGE AXIS WILL STRENGTHEN A MIDLEVEL INVERSION AND SUPPRESS CONVECTION ON THURSDAY. HIGHS WILL REACH THE LOWER TO MID 90S IN MOST SPOTS. THE UPPER RIDGE CENTERED OVER THE SOUTHERN MS VALLEY REGION RETROGRADES TOWARD THE SOUTHERN PLAINS AND SOUTHERN ROCKIES. BETWEEN THIS RIDGE AND THE BERMUDA HIGH...A TROUGH SETS UP OVER THE OHIO AND TN VALLEYS FOR FRIDAY AND SATURDAY. MODELS ARE IN REASONABLY GOOD AGREEMENT WITH THIS GENERAL PATTERN AND HAVE SHOWN GOOD RUN-TO-RUN CONTINUITY. THOUGH THE ASSOCIATED SURFACE FRONT WILL STALL WELL TO OUR NORTH...A MOIST AND UNSTALBE AIR MASS UNDER WEAK DIFFLUENCE ALOFT WILL ENHANCE THE CHANCES OF SHOWERS AND THUNDERSTORMS EACH DAY. WILL INCREASE POPS A BIT BOTH DAYS...BUT WILL KEEP IN THE CHANCE RANGE FOR NOW. CLOUD COVER SHOULD HOLD HIGH TEMPS BACK TO THE 80S ON SATURDAY. THE MODELS BEGIN TO DIVERGE ON THEIR SOLUTIONS FOR THE BEGINNING OF NEXT WEEK...WITH CONSIDERABLE SPREAD AMONG THE GFS ENSEMBLE MEMBERS. THUS CONFIDENCE IS LOW ON THE DETAILS OF THE FORECAST. GENERALLY SPEAKING...THE PATTERN BECOMES SLIGHTLY MORE PROGRESSIVE ON SUNDAY AS THE SOUTHERN PLAINS RIDGE SHIFTS SLOWLY TOWARD THE EAST AND THE UPPER TROUGH MOVES OFF THE ATLANTIC COAST. THIS PATTERN APPEARS FAVORABLE FOR MCS DEVELOPMENT OVER THE NORTHERN PLAINS...AND WITH A NORTHWEST FLOW ALOFT...THE REMANTS OF THESE COULD AFFECT OUR AREA EACH DAY. WILL CARRY CHANCE POPS EACH DAY WITH SLIGHT CHANCE POPS EACH NIGHT...WITH TEMPS ABOVE NORMAL. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 72 94 71 96 74 / 40 10 0 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 70 92 69 94 73 / 30 10 0 10 10 OAK RIDGE, TN 70 93 69 94 72 / 30 10 0 10 10 TRI CITIES AIRPORT, TN 66 91 65 93 66 / 30 10 0 10 10 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && LCM/DGS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 518 AM EDT TUE JUL 13 2010 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-140930- 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- 518 AM EDT TUE JUL 13 2010 /418 AM CDT TUE JUL 13 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT AN UPPER LEVEL DISTURBANCE WILL MOVE EAST INTO THE AREA TODAY. CLUSTERS OF THUNDERSTORMS WILL BRING STRONG GUSTY WINDS AND HEAVY DOWNPOURS INTO THE AREA. ISOLATED WIND DAMAGE IS POSSIBLE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 221 PM EDT TUE JUL 13 2010 NCZ060-TNZ085>087-101-102-131900- CHEROKEE NC-EAST POLK TN-MCMINN TN-NORTHWEST MONROE TN-SOUTHEAST MONROE TN-WEST POLK TN- 221 PM EDT TUE JUL 13 2010 ...SIGNIFICANT WEATHER ADVISORY FOR POLK...MONROE...MCMINN AND CHEROKEE COUNTIES UNTIL 300 PM EDT... AT 215 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5 MILES SOUTH OF ETOWAH...OR 9 MILES NORTHEAST OF BENTON...MOVING NORTHEAST AT 35 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MADISONVILLE...BULLET CREEK...ENGLEWOOD...VIOLET...COKER CREEK...MOUNT VERNON...UNAKA... TELLICO PLAINS...CITICO...TARIFFVILLE...CITICO BEACH AND VONORE. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. TG
The Knoxville radar (KMRX), 5 km away, was scanning. The volume nearest the first event began at 18:44 UTC.
1 thunderstorm wind. Local standard time, as filed.
Two large oak trees were downed at a residence on Alpha Valley Home Road. Also, a barn on the property received significant roof damage.
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, July 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: 238261.