A weak boundary lingered across the area which triggered isolated severe thunderstorms during the evening hours.
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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 boundary lingered across the area which triggered isolated severe thunderstorms during the evening hours.
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 27, 2:00 PM EST, 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 300 PM EDT SUN JUN 27 2010 .SHORT TERM...(TONIGHT AND MONDAY)...MID LEVEL IMPULSE PHASED WITH AFTN HEATING KICKING OFF SCATTERED STRONG TSTMS. ACTIVITY WILL TAPER OFF THIS EVENING WITH PATCHY FOG AND HAZE OVERNIGHT. UPPER TROF MOVES SE APPROACHING MIDDLE TN ON MONDAY. MOISTURE INCREASES ACROSS THE REGION IN ADVANCE OF THE TROF. PW VALUES EXCEED 2.00 BY MONDAY AFTN. PCPN COVERAGE WILL TREND UP AND SOME AFTN STORMS COULD BE STRONG. ABOVE NORMAL TEMPS CONTINUE. .LONG TERM...(MONDAY NIGHT THROUGH SUNDAY)...A COLD FRONT WILL MOVE ACROSS THE FORECAST AREA MONDAY NIGHT AND TUESDAY. AIRMASS ALONG AND AHEAD OF FRONT WILL BE UNSTABLE WITH CAPES OF 1500-2000 J/KG. WILL MAINTAIN SCATTERED-BROKEN CONVECTION ALONG AND AHEAD OF FRONTAL BOUNDARY. FOR TUESDAY NIGHT AND WEDNESDAY...LATEST GFS SHOWS LOW-LEVEL MOISTURE HANGING OVER THE FAR EASTERN MOUNTAINS AS FRONT SLOWS OVER THE CAROLINAS-GEORGIA. WILL MAINTAIN SLIGHT POPS OVER THE FAR EASTERN-SOUNDING COUNTIES...OTHERWISE...DRIER AND STABLE AIR FILTERS INTO THE REST OF THE FORECAST AREA. FOR THURSDAY THROUGH NEXT WEEKEND...SURFACE RIDGING WILL DOMINATE WITH UPPER TROUGH OVER THE NORTHEAST UNITED STATES LIFTING EAST ALLOWING FOR RIDGING TO DEVELOP. WILL GENERALLY GO WARMER THAN MEX MOS GIVEN DRIER SOILS...PLENTY OF INSOLATION...AND BUILDING RIDGE INTO THE WEEKEND. && && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 73 93 71 91 71 / 20 40 40 60 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 73 91 70 90 67 / 20 50 50 30 10 OAK RIDGE, TN 73 90 69 90 67 / 20 50 50 30 10 TRI CITIES AIRPORT, TN 68 88 67 87 62 / 20 60 50 10 10 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && SON/DH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 448 AM EDT SUN JUN 27 2010 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-280900- 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- 448 AM EDT SUN JUN 27 2010 /348 AM CDT SUN JUN 27 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP...MAINLY THIS AFTERNOON AND EVENING. HOWEVER...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS WILL BE MORE WIDESPREAD ON MONDAY...AHEAD OF A STRONGER COLD FRONT. A FEW STRONG TO SEVERE STORMS MAY OCCUR IN THE AFTERNOON AND EVENING...WITH LOCALLY HEAVY RAINS IN EXCESS OF ONE INCH...AND WINDS GUSTING TO 50 MPH OR HIGHER IN AND NEAR THE STRONGEST STORMS. OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED FOR THE REST OF THE WEEK...AS DRIER AND SLIGHTLY COOLER AIR MOVES IN BEHIND PASSAGE OF THE COLD FRONT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED MONDAY AFTERNOON AND EVENING. TG
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 200 PM EDT SUN JUN 27 2010 TNZ036>038-069-070-271900- ANDERSON TN-GRAINGER TN-JEFFERSON TN-KNOX TN-UNION TN- 200 PM EDT SUN JUN 27 2010 ...SIGNIFICANT WEATHER ADVISORY FOR KNOX...EXTREME WESTERN JEFFERSON...UNION...WESTERN GRAINGER AND EASTERN ANDERSON COUNTIES UNTIL 300 PM EDT... AT 157 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9 MILES WEST OF MAYNARDVILLE...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...MAYNARDVILLE...NORRIS LAKE...PAULETTE...LUTTRELL...ROSE HILL AND BLAINE. 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
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 216 PM EDT SUN JUN 27 2010 VAZ001-002-005-271915- LEE VA-SCOTT VA-WISE VA- 216 PM EDT SUN JUN 27 2010 ...SIGNIFICANT WEATHER ADVISORY FOR WISE...CITY OF NORTON...EASTERN LEE AND SCOTT COUNTIES UNTIL 315 PM EDT... AT 212 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR BIG STONE GAP...OR 13 MILES SOUTHWEST OF NORTON...MOVING EAST AT 15 MPH. SMALL HAIL AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...NORTON...BIG STONE GAP...APPALACHIA...FORT BLACKMORE...DUNGANNON...COEBURN AND NICKELSVILLE. 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
The Knoxville radar (KMRX), 48 km away, was scanning. The volume nearest the first event began at 19:03 UTC.
1 thunderstorm wind. Local standard time, as filed.
Law enforcement personnel reported several trees downed by thunderstorm winds on Highway 61 west of Maynardville near the Andersonville boat dock.
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: 230725.