A few severe thunderstorms developed during the afternoon hours as a frontal boundary lingered across the region. Most of the storm reports were for 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 few severe thunderstorms developed during the afternoon hours as a frontal boundary lingered across the region. Most of the storm reports were for 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 11, 8:57 AM CST, 2 hours 38 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 1057 AM EDT SAT JUN 11 2011 .DISCUSSION... COUPLE OF OUTFLOW BOUNDARIES HAVE MOVED INTO NWRN SECTIONS OF THE CWA...WITH ENOUGH ELEVATED CONVECTION TO FIRE A FEW SMALL THUNDERSTORMS. WE MAY GET TO THE SURFACE-BASED CONVECTIVE TEMPERATURES SOON ENOUGH BEFORE THE CONVERGENCE ALONG THESE BOUNDARIES FADES...THEREFORE...THEY COULD BE PLAYERS IN TODAY'S THUNDERSTORM ACTIVITY. THE TERRAIN WILL BE THE OTHER OBVIOUS PLAYER IN INITIAL DEVELOPMENT. LOOKING AT LOW-LEVEL MOISTURE AND MODEL SOUNDINGS...WOULD EXPECT CAPE VALUES IN THE 1000-1500 J/KG RANGE ACROSS THE AREA...WITH 15-20 KT 0-6KM SHEAR ACROSS THE NORTH...VS LESS THAN 10 KT SHEAR ACROSS THE SOUTH...THEREFORE...INDIVIDUAL STORM CELLS WILL PERSIST LONGER IN THE NORTH AND HAVE A BETTER CHANCE OF BECOMING SEVERE. WET-BULB ZERO VALUES VERY HIGH...SO MAIN THREAT LOOKS TO BE GUSTY OUTFLOW WINDS...WITH A STRONGEST CELLS MAYBE GETTING QUARTER-SIZED HAIL AT BEST. WILL RAISE THE POPS ACROSS THE NORTHERN SECTIONS INTO THE 40S-50S% RANGE...BUT LEAVE THE SOUTHERN AREAS IN THE 20S-30S% RANGE. WILL MAKE SLIGHT TWEAK TO HAZARDOUS WEATHER OUTLOOK. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 95 68 93 65 92 / 30 30 30 20 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 93 67 90 62 87 / 40 40 30 10 10 OAK RIDGE, TN 92 66 89 62 87 / 40 40 30 10 10 TRI CITIES AIRPORT, TN 90 62 87 56 83 / 50 50 30 10 10 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && GM
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 1112 AM EDT SAT JUN 11 2011 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-121515- 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- 1112 AM EDT SAT JUN 11 2011 /1012 AM CDT SAT JUN 11 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON...WITH MORE COVERAGE OVER THE NORTHERN AREAS...AND ONLY ISOLATED TO SCATTERED STORMS OVER THE SOUTH. SOME STORMS MAY LINGER OVERNIGHT AS A WEAK COLD FRONT DROPS SOUTHEAST INTO THE REGION. A FEW ISOLATED SEVERE STORMS ARE POSSIBLE OVER THE NORTHERN AREAS THIS AFTERNOON INTO THE EARLY EVENING. MOST OF THE STORMS ACROSS THE SOUTHERN SECTIONS WILL BE BRIEF AND NOT AS STRONG OVERALL. THE SEVERE WEATHER THREAT WILL MAINLY BE DAMAGING THUNDERSTORM OUTFLOW WINDS. FOR HAIL SIZE...A FEW OF THE STRONGEST STORMS IN THE NORTH MAY APPROACH QUARTER-SIZED HAIL. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY MORE SEASONAL TEMPERATURES AND MOSTLY DRY WEATHER WILL RETURN FROM SUNDAY THROUGH TUESDAY...BEHIND PASSAGE OF THE COLD FRONT ON SUNDAY. SHOWERS AND THUNDERSTORMS ARE POSSIBLE AGAIN FROM WEDNESDAY THROUGH FRIDAY...WITH THE POTENTIAL FOR A FEW STRONG TO MARGINALLY SEVERE STORMS IN THE AFTERNOON AND EVENING HOURS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED BRIEFLY OVER SOME PARTS OF NORTHEAST TENNESSEE AND SOUTHWESTERN VIRGINIA THIS AFTERNOON AND EVENING. GM
The Northeast Alabama radar (KHTX), 45 km away, was scanning. The volume nearest the first event began at 17:33 UTC.
3 thunderstorm wind. Local standard time, as filed.
Law enforcement personnel reported several trees downed by thunderstorm wind on Coburn Road and Highland Avenue in Jasper.
Law enforcement personnel reported several trees downed by thunderstorm wind across the southern half of the county especially around Dayton and Evensville.
Law enforcement personnel reported several trees downed by thunderstorm wind in Madisonville.
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: 311391, 311392, 311393.