A boundary across the area triggered thunderstorms during the evening hours. Many of the storms reported damaging thunderstorm wind.
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 across the area triggered thunderstorms during the evening hours. Many of the storms reported damaging thunderstorm wind.
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 21, 12:18 PM CST, 4 hours 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 218 PM EDT TUE JUN 21 2011 .SHORT TERM (TONIGHT AND WEDNESDAY)...UPPER RIDGE DAMPENING DOWN AS A COLD FRONT APPROACHES THE AREA. SCATTERED CONVECTION OVER MIDDLE TN WILL MOVE EAST INTO THE MRX CWA THIS EVENING. ADDITIONAL WIDESPREAD CONVECTION IS EXPECTED ON WEDNESDAY AS THE FRONT MOVES IN. WITH GOOD LOW LEVEL MOISTURE AND AN UNSTABLE AIR MASS IN PLACE ...THERE WILL BE THE POTENTIAL FOR A FEW OF THESE STORMS BECOME STRONG...POSSIBLY SEVERE. ALSO...WITH ABUNDANT RECENT RAINFALL ...ADDITIONAL HEAVY RAINS COULD CAUSE LOCALIZED FLOODING. .LONG TERM (WEDNESDAY NIGHT THROUGH TUESDAY)...GREAT LAKES UPPER LOW WILL EXTEND A TROUGH AXIS SOUTHWARD INTO THE FORECAST AREA INTO SATURDAY. A FRONTAL BOUNDARY WILL LINGER IN THE VICINITY AS WELL...WHICH SHOULD LEAD TO A PROLONGED PERIOD OF AT LEAST SCATTERED ORGANIZED CONVECTION. TWEAKED A FEW POP AND WEATHER GRIDS FOR THESE PERIODS...BUT PREVIOUS GRIDS WERE GENERALLY ON TRACK. UPPER LEVEL FLOW IS SOMEWHAT DIFFLUENT OR WEAK TROUGH LINGERING ON SUNDAY...SO I HAD TO FILL IN ANY DRY PERIODS WITH SLIGHT CHANCE TO CHANCE POPS OUT THROUGH MONDAY. WILL INTRODUCE NEW DAY 7 (TUESDAY) WITH SLIGHT CHANCE DAYTIME POPS FOR NOW. AS FOR TEMPERATURES...TRENDED TOWARD THE GFSX MOS THROUGH THE FORECAST PERIOD...WHICH IS NEAR SEASONAL NORMS. THE 21/12Z GFSX MOS WAS QUITE CLOSE TO 21/00Z GUIDANCE...SO ANY CHANGES TO MAX/MIN TEMPS WAS VERY MINIMAL. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 71 86 69 89 69 / 50 70 50 40 30 KNOXVILLE AIRPORT, TN 69 85 68 86 67 / 50 60 60 40 30 OAK RIDGE, TN 69 85 67 86 67 / 50 60 50 40 30 TRI CITIES AIRPORT, TN 67 83 64 84 61 / 50 60 70 40 30 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && MJB/TG
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 340 AM EDT TUE JUN 21 2011 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-220800- 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- 340 AM EDT TUE JUN 21 2011 /240 AM CDT TUE JUN 21 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT A FEW ISOLATED THUNDERSTORMS MAY DEVELOP ACROSS THE CUMBERLAND PLATEAU AND ALONG AND SOUTH OF INTERSTATE 40 BY LATE AFTERNOON. DUE TO TEMPERATURES EXPECTED TO RISE INTO THE LOWER TO MID 90S AND A MODERATELY UNSTABLE ATMOSPHERE...A FEW OF THE STORMS COULD BECOME STRONG. ANY THREATS FOR HAZARDOUS WEATHER WILL BE FREQUENT LIGHTNING...BRIEF GUSTY WINDS AROUND 40 MPH...AND BRIEF VERY HEAVY RAINFALL. AS A COLD FRONT BEGINS TO HEAD TOWARD THE REGION BY TONIGHT...THERE WILL BE A CHANCE OF SHOWERS AND THUNDERSTORMS TOWARD EARLY WEDNESDAY MORNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY AS THE COLD FRONT APPROACHES THE AREA ON WEDNESDAY...MORE NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED. SOME STORMS COULD BECOME SEVERE BY WEDNESDAY AFTERNOON AND EVENING...WITH THE POTENTIAL FOR DAMAGING WINDS... LARGE HAIL...AND LOCALLY HEAVY RAINFALL. OTHERWISE...ISOLATED TO SCATTERED THUNDERSTORMS DO REMAIN IN THE FORECAST FOR JUST ABOUT EVERY DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED BY WEDNESDAY. TT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1258 PM EDT TUE JUN 21 2011 TNZ082-083-211800- BLEDSOE TN-RHEA TN- 1158 AM CDT TUE JUN 21 2011 ...SIGNIFICANT WEATHER ADVISORY FOR BLEDSOE AND RHEA COUNTIES UNTIL 100 PM CDT/200 PM EDT/... AT 1154 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR PIKEVILLE...MOVING NORTHEAST AT 20 MPH. SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...SPRING CITY... EVENSVILLE...MELVINE AND GRANDVIEW. 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! MJB
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 230 PM EDT TUE JUN 21 2011 TNZ040>043-073-074-211915- COCKE SMOKY MOUNTAINS TN-NORTH SEVIER TN-NORTHWEST COCKE TN-NORTHWEST GREENE TN-SEVIER SMOKY MOUNTAINS TN-SOUTHEAST GREENE TN- 230 PM EDT TUE JUN 21 2011 ...SIGNIFICANT WEATHER ADVISORY FOR GREENE...SEVIER AND COCKE COUNTIES UNTIL 315 PM EDT... AT 224 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM PARROTTSVILLE TO 11 MILES EAST OF GATLINBURG...AND MOVING NORTHEAST AT 15 MPH. SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...CANEY BRANCH... HARTFORD...CEDAR CREEK...DEL RIO AND ROUND MOUNTAIN. THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. MJB
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 526 PM EDT TUE JUN 21 2011 TNZ067-082>084-212215- BLEDSOE TN-MEIGS TN-RHEA TN-ROANE TN- 526 PM EDT TUE JUN 21 2011 ...SIGNIFICANT WEATHER ADVISORY FOR MEIGS...BLEDSOE...ROANE AND RHEA COUNTIES UNTIL 615 PM EDT/515 PM CDT/... AT 413 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8 MILES WEST OF SPRING CITY...OR 12 MILES NORTHEAST OF PIKEVILLE...MOVING NORTHEAST AT 25 MPH. SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...ROCKWOOD...GRANDVIEW AND EAGLE FURNACE. 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. GH
The Northeast Alabama radar (KHTX), 59 km away, was scanning. The volume nearest the first event began at 22:19 UTC.
20 thunderstorm wind. Local standard time, as filed.
Law enforcement personnel reported many trees and powerlines downed by thunderstorm wind in Whitwell.
Emergency management personnel reported several trees and powerlines downed by thunderstorm wind in Dunlap.
Law enforcement personnel reported several trees downed by thunderstorm wind in Chattanooga.
Law enforcement personnel reported several trees downed by thunderstorm wind in Soddy Daisy.
Amateur radio personnel reported several trees downed by thunderstorm wind in Charleston.
Amateur radio personnel reported several trees downed by thunderstorm wind in Etowah.
Amateur radio personnel reported many trees and powerlines downed by thunderstorm wind in Sweetwater.
Law enforcement personnel reported numerous trees downed by thunderstorm wind in Lenoir City.
Emergency management personnel reported numerous trees downed by thunderstorm wind countywide.
A NWS employee reported 1 tree and several large limbs downed by thunderstorm wind in Maryville.
A NWS employee reported an estimated thunderstorm wind gust at 60 mph (52 knots) in Maryville.
Amateur radio personnel reported several trees and limbs downed by thunderstorm wind in Knoxville.
Amateur radio personnel reported numerous trees downed by thunderstorm wind in Knoxville. Wind also downed a tree on a house.
A trained spotter reported a few trees downed by thunderstorm wind in the Talbott area.
A trained spotter reported numerous trees downed by thunderstorm wind in Rutledge.
Law enforcement personnel reported numerous trees downed by thunderstorm wind in Morristown.
Law enforcement personnel reported numerous trees downed by thunderstorm wind in Gray.
Law enforcement personnel reported several trees downed by thunderstorm wind in Colonial Heights.
Law enforcement personnel reported several trees downed by thunderstorm wind in Blountville.
Law enforcement personnel reported a few trees downed by thunderstorm wind in the Butler area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2011Every state in 2011This day in weather historyWarnings in Tennessee, June 2011
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: 316026, 316029, 316032, 316045, 316048, 316050, 316053, 316054, 316056, 316057, 316063, 316067, 316068, 316069, 316071, 316073, 316075, 316077, 316078, 316084.