A boundary across the area triggered scattered thunderstorms across east Tennessee during the afternoon and evening hours. Storm reports were primarily for damaging thunderstorm winds, but hail was also reported.
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 scattered thunderstorms across east Tennessee during the afternoon and evening hours. Storm reports were primarily for damaging thunderstorm winds, but hail was also reported.
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 28, 1:38 PM EST, 0 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 238 PM EDT SUN JUN 28 2009 .SHORT TERM (TONIGHT AND MONDAY)...SEVERE TSTM WATCH NUMBER 530 IN EFFECT FOR MAINLY E TN AREAS SOUTH OF I-40...WITH COVERAGE HOLDING AROUND 20 TO 30 PERCENT IN THE WATCH. ALSO SEEING SPOTTY TSRA POP ACROSS THE NRN PLATEAU OUT OF THE WATCH AREA. MOST ACTIVITY SEEMS TO BE FOR THE MOST PART DEVELOPING ON THE PRE-FRONTAL TROUGH. VERY UNSTABLE AREAWIDE WITH BETTER SHEAR THAN YESTERDAY...BUT OTHER PARAMETERS SUGGEST COVERAGE MAY BE LESS FURTHER NORTH ACROSS EXTREME NE TN AND SWRN VA. FORECAST GRIDS ADJUSTED FOR THIS TREND IN THE AFTERNOON PACKAGE...WHICH SHOULD BE ISSUED SHORTLY. OTHERWISE...CARRIED PREVIOUS THINKING FOR 50 PERCENT OR LESS COVERAGE OF TSRA IN THE SHORT TERM...DECREASING FROM THE W-NW THIS EVENING. 12Z MOS MINS MUCH COOLER THAN PREVIOUS MIN TEMP GRID ...WITH A SLIGHT LOWERING TOWARD A MOS BLEND PREFERRED OVER THE COOLEST MOS NUMBERS. SUNNY AND CONTINUED WARM...ABOVE CLIMO...ON MONDAY. .LONG TERM...(MONDAY NIGHT THROUGH SUNDAY)...MODELS ARE DIFFERING WITH RESPECT TO UPPER LEVEL LOW THAT IS PROGGED TO ONLY SLOWLY SHIFT EASTWARD WITH TIME THROUGH THE EASTERN GREAT LAKES REGION THROUGH THE WEEK. THE MAIN QUESTION WILL BE HOW MUCH INFLUENCE UPPER LOW WILL HAVE ON THE SOUTHERN APPALACHIAN REGION. RIDGING IS EXPECTED TO SET UP ACROSS THE TENNESSEE VALLEY BY FRIDAY ON BACK SIDE OF UPPER LOW IN ADVANCE OF NEXT SURFACE COLD FRONT. WILL CONTINUE WITH SLIGHT CHANCE AFTERNOON POPS...AS AM UNCERTAIN AS MODELS ARE INCONSISTENT WITH NORTHWEST FLOW UPPER LEVEL ENERGY AND TERRAIN EFFECTS MAY LEAD TO SLIGHT CHANCE OF SHRA/TSRA THROUGH AFTERNOON FORECAST PERIODS. FOR TEMPS...GENERALLY DID NOT DEVIATE SIGNIFICANTLY FROM MAV/MEX GUIDANCE. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 69 91 63 89 63 / 30 10 10 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 66 87 61 84 60 / 30 10 10 10 10 OAK RIDGE, TN 64 88 61 85 60 / 30 10 10 10 10 TRI CITIES AIRPORT, TN 61 84 56 79 57 / 30 10 10 20 20 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && TG/TT
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 500 AM EDT SUN JUN 28 2009 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-291000- 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) SUN JUN 28 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST TENNESSEE...SOUTHWEST VIRGINIA AND EXTREME SOUTHWEST NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT A COLD FRONT WILL MOVE THROUGH THE SOUTHERN APPALACHIAN REGION THIS AFTERNOON...TRIGGERING SCATTERED SHOWERS AND THUNDERSTORMS. SOME OF THESE STORMS MAY BECOME SEVERE THIS AFTERNOON AND EVENING... PRODUCING DAMAGING WINDS...LARGE HAIL...LOCALLY HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. DMG
The Knoxville radar (KMRX), 92 km away, was scanning. The volume nearest the first event began at 18:38 UTC.
11 thunderstorm wind, 1 hail. Local standard time, as filed.
Law enforcement personnel reported one tree downed by thunderstorms winds west of Lenoir City.
Law enforcement personnel reported thunderstorms produced penny-size hail near Greenback.
Law enforcement personnel reported several trees downed by thunderstorm winds in and around Madisonville.
Law enforcement personnel reported a roof of a business was damaged by thunderstorm winds near Madisonville.
Law enforcement personnel reported three trees downed by thunderstorm winds at Sharps Chapel.
Law enforcement personnel reported three trees downed by thunderstorm winds northeast of Maynardville.
Law enforcement personnel reported several trees and powerlines downed by thunderstorm winds in Knoxville.
Law enforcement personnel reported several trees and powerlines downed by thunderstorm winds countywide from Athens to Englewood.
Law enforcement personnel reported numerous trees and powerlines downed by thunderstorm winds countywide from Maryville to Townsend.
Law enforcement personnel reported a few trees downed by thunderstorm winds in the southern portions of Clinton.
Law enforcement personnel reported several trees downed by thunderstorm winds in Loudon. One tree fell on a parked car.
Utility company personnel reported several trees and powerlines downed by thunderstorm winds countywide.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2009Every state in 2009This day in weather historyWarnings in Tennessee, June 2009
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: 174155, 174160, 174161, 174162, 174163, 174164, 174338, 174341, 174342, 174346, 174348, 174349.