A boundary across the area triggered scattered severe thunderstorms across east Tennessee during the the morning hours and again in the afternoon. Damage reports were primarily for damaging thunderstorm winds, but a few hail occurrences were also received.
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 severe thunderstorms across east Tennessee during the the morning hours and again in the afternoon. Damage reports were primarily for damaging thunderstorm winds, but a few hail occurrences were also received.
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 22, 2:00 AM EST, 3 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 300 AM EDT MON JUN 22 2009 .SHORT TERM (TODAY AND TONIGHT)...REMAINS OF A STALLED FRONTAL BOUNDARY CONTINUES TO BE STRETCHED NORTHWEST TO SOUTHEAST ACROSS THE MRX CWA. WITH THIS...WILL CONTINUE TO SEE CONVECTION DEVELOPING ALONG IT AND PROVIDE OCCASIONAL SHOWER AND THUNDERSTORM ACTIVITY TO THE AREA TODAY AND TONIGHT. INITIALLY...MAIN TRACK WILL LIE ACROSS THE CENTRAL PART OF THE CWA...THEN THROUGH THE DAY THE BOUNDARY MAY SAG A BIT SOUTHWESTWARD. .LONG TERM (TUESDAY THROUGH SUNDAY)...HIGH PRESSURE OVER THE CENTRAL U.S. WILL STRENGTHEN EARLY IN THE EXTENDED...KEEPING THE SOUTHERN APPALACHIAN REGION IN NORTH TO NORTHWEST FLOW ALOFT. THE STALL BOUNDARY OVER THE AREA WILL BECOME MORE NORTH TO SOUTH ORIENTED FOR TUESDAY AND CONTINUE TO CARRY OCCASIONAL CONVECTION THROUGH THE AREA. THE BOUNDARY WILL SLOWLY DISSIPATE MID WEEK AS THE CENTRAL U.S. RIDGE CONTINUES TO STRENGTHEN AND EXPAND EAST INTO OUR AREA. THIS SHOULD SUPPRESS CONVECTION OVER OUR AREA AND LEAD TO GENERALLY HOT AND DRY CONDITIONS ON WEDNESDAY. WEATHER EXPECTED TO BECOME UNSETTLED ONCE AGAIN DURING THE LATTER PART OF THE EXTENDED AS THE STRENGTH OF THE RIDGE DECREASE AND ANOTHER WEAKENING FRONTAL BOUNDARY DROPS INTO THE AREA. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 94 72 92 70 92 / 30 20 20 10 10 KNOXVILLE AIRPORT, TN 90 70 89 67 88 / 40 30 20 10 10 OAK RIDGE, TN 92 69 91 68 90 / 40 30 20 10 10 TRI CITIES AIRPORT, TN 87 64 88 64 86 / 30 20 20 10 10 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && MJB
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 530 AM EDT MON JUN 22 2009 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-231000- 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- 530 AM EDT MON JUN 22 2009 /430 AM CDT MON JUN 22 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP ALONG A NEARLY STATIONARY FRONTAL BOUNDARY DRAPED ACROSS EAST TENNESSEE. LOCALIZED RAINFALL AMOUNTS NEAR TWO INCHES ARE POSSIBLE. AN ISOLATED SEVERE STORM IS POSSIBLE WITH THE MAIN THREAT BEING DAMAGING WINDS. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 346 AM EDT MON JUN 22 2009 TNZ035-067-220845- MORGAN-ROANE- 346 AM EDT MON JUN 22 2009 ...A STRONG THUNDERSTORM WILL BE AFFECTING MORGAN AND ROANE COUNTIES... AT 345 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9 MILES WEST OF WARTBURG...MOVING SOUTHEAST AT 25 MPH. WINDS AROUND 40 MPH ARE EXPECTED WITH THIS STORM. LOCALLY HEAVY RAINS...IN EXCESS OF ONE INCH PER HOUR...MAY OCCUR WITH THIS THUNDERSTORM. 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 DONT DROWN 17
The Knoxville radar (KMRX), 62 km away, was scanning. The volume nearest the first event began at 10:02 UTC.
16 thunderstorm wind, 2 hail. Local standard time, as filed.
Law enforcement personnel reported several trees downed by thunderstorm winds in Walland.
Highway department personnel reported a few trees downed by thunderstorm winds in Townsend.
Law enforcement personnel reported a few trees downed by thunderstorm winds near Caryville.
Highway department personnel reported several trees downed by thunderstorm winds in and around Benton.
Park service personnel reported one tree downed by thunderstorm winds west of Archville.
Law enforcement personnel reported a few trees and powerlines downed by thunderstorm winds countywide. In addition, a home in Claxton was damaged by a falling tree from the wind.
Amateur radio personnel reported thunderstorms produced penny-size hail northwest of Knoxville.
Law enforcement personnel reported a few trees and powerlines downed by thunderstorm winds in the Dayton area and countywide.
Utility company personnel reported few power lines downed by thunderstorm winds in Conasauga.
Amateur radio personnel reported thunderstorms produced penny-size hail northwest of Knoxville.
Law enforcement personnel reported one tree downed by thunderstorm winds in Harriman.
Law enforcement personnel reported several trees downed by thunderstorm winds countywide.
Law enforcement personnel reported two trees downed by thunderstorm winds near Clover Hill.
Law enforcement personnel reported one tree downed by thunderstorm winds in Ten Mile.
Law enforcement personnel reported one tree downed by thunderstorm winds in Sweetwater.
Law enforcement personnel reported one tree downed by thunderstorm winds west of Athens.
Law enforcement personnel reported one tree downed by thunderstorm winds in Madisonville.
Law enforcement personnel reported one tree downed by thunderstorm winds northeast of Tellico Plains.
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: 174131, 174133, 174135, 174136, 174137, 174139, 174140, 174141, 174143, 174144, 174145, 174147, 174148, 174149, 174150, 174151, 174152, 174153.