The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area.

Thunderstorm Wind in HAMILTON, TENNESSEE
From 26-MAY-11 13:50:00 to 26-MAY-11 13:50:00 (EST-5)
Location: BRAINERD HILLS
Magnitude: 50.00 EG
Reported by: Emergency Manager

A few power lines were reported down.

Hail in HAMILTON, TENNESSEE
From 26-MAY-11 14:00:00 to 26-MAY-11 14:00:00 (EST-5)
Location: CHICKAMAUGA
Magnitude: 2.00 
Reported by: Trained Spotter

Hen egg size hail was reported along interstate 75 near Hamilton Place Mall.

Hail in SEVIER, TENNESSEE
From 26-MAY-11 14:00:00 to 26-MAY-11 14:00:00 (EST-5)
Location: PITNER
Magnitude: 1.00 
Reported by: Amateur Radio

Quarter size hail was reported.

Hail in MCMINN, TENNESSEE
From 26-MAY-11 14:20:00 to 26-MAY-11 14:20:00 (EST-5)
Location: MASHBURN
Magnitude: 1.75 
Reported by: Law Enforcement

Golf ball size hail was reported.

Hail in SEVIER, TENNESSEE
From 26-MAY-11 14:23:00 to 26-MAY-11 14:23:00 (EST-5)
Location: KODAK
Magnitude: 1.25 
Reported by: Trained Spotter

Half dollar size hail was reported on interstate 40 at exit 407.

Hail in JEFFERSON, TENNESSEE
From 26-MAY-11 14:40:00 to 26-MAY-11 14:40:00 (EST-5)
Location: DANDRIDGE
Magnitude: 1.50 
Reported by: Amateur Radio

Ping Pong ball size hail was reported.

Hail in MONROE, TENNESSEE
From 26-MAY-11 14:42:00 to 26-MAY-11 14:42:00 (EST-5)
Location: MADISONVILLE
Magnitude: 1.25 
Reported by: Law Enforcement

Half dollar size hail was reported.

Hail in JEFFERSON, TENNESSEE
From 26-MAY-11 14:45:00 to 26-MAY-11 14:45:00 (EST-5)
Location: WHITE PINE
Magnitude: 0.88 
Reported by: Amateur Radio

Nickel size hail was reported.

Thunderstorm Wind in JEFFERSON, TENNESSEE
From 26-MAY-11 14:48:00 to 26-MAY-11 14:48:00 (EST-5)
Location: WHITE PINE
Magnitude: 50.00 EG
Reported by: Emergency Manager

A barn was severely damaged when most of its roof was removed by thunderstorm wind gusts.

Hail in GREENE, TENNESSEE
From 26-MAY-11 15:29:00 to 26-MAY-11 15:29:00 (EST-5)
Location: MOHAWK
Magnitude: 1.00 
Reported by: Amateur Radio

Quarter size hail was reported.

Hail in SULLIVAN, TENNESSEE
From 26-MAY-11 15:58:00 to 26-MAY-11 15:58:00 (EST-5)
Location: SPRINGDALE
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported.

Hail in SULLIVAN, TENNESSEE
From 26-MAY-11 16:00:00 to 26-MAY-11 16:00:00 (EST-5)
Location: COLONIAL HGTS
Magnitude: 1.50 
Reported by: Trained Spotter

Ping pong ball size hail was reported.

Hail in WASHINGTON, TENNESSEE
From 26-MAY-11 16:07:00 to 26-MAY-11 16:07:00 (EST-5)
Location: GRAY
Magnitude: 1.75 
Reported by: Amateur Radio

Golf ball size hail was reported.

Hail in SULLIVAN, TENNESSEE
From 26-MAY-11 16:20:00 to 26-MAY-11 16:20:00 (EST-5)
Location: GALLOWAY MILL
Magnitude: 1.00 
Reported by: Amateur Radio

Quarter size hail was reported.

Thunderstorm Wind in SEVIER, TENNESSEE
From 26-MAY-11 16:20:00 to 26-MAY-11 16:20:00 (EST-5)
Location: HENRY XRDS
Magnitude: 50.00 EG
Reported by: Law Enforcement

Several trees were reported down.

Hail in SULLIVAN, TENNESSEE
From 26-MAY-11 16:24:00 to 26-MAY-11 16:24:00 (EST-5)
Location: BLOUNTVILLE
Magnitude: 1.00 
Reported by: Amateur Radio

Quarter size hail was reported.

Thunderstorm Wind in SEVIER, TENNESSEE
From 26-MAY-11 16:25:00 to 26-MAY-11 16:25:00 (EST-5)
Location: ALDER BRANCH
Magnitude: 50.00 EG
Reported by: Law Enforcement

Several trees were reported down.

Hail in SULLIVAN, TENNESSEE
From 26-MAY-11 16:27:00 to 26-MAY-11 16:27:00 (EST-5)
Location: GALLOWAY MILL
Magnitude: 1.75 
Reported by: Amateur Radio

Golf ball size hail was reported.

Hail in SULLIVAN, TENNESSEE
From 26-MAY-11 16:29:00 to 26-MAY-11 16:29:00 (EST-5)
Location: BRISTOL
Magnitude: 1.00 
Reported by: Amateur Radio

Quarter size hail was reported on Volunteer Parkway north of Bristol Motor Speedway.

Thunderstorm Wind in WASHINGTON, TENNESSEE
From 26-MAY-11 16:36:00 to 26-MAY-11 16:36:00 (EST-5)
Location: JOHNSON CITY
Magnitude: 50.00 EG
Reported by: Law Enforcement

A few trees were reported down.

Thunderstorm Wind in COCKE, TENNESSEE
From 26-MAY-11 16:36:00 to 26-MAY-11 16:36:00 (EST-5)
Location: WILSONVILLE
Magnitude: 50.00 EG
Reported by: Amateur Radio

A few trees were reported down along Carson Springs Road.

Thunderstorm Wind in JEFFERSON, TENNESSEE
From 26-MAY-11 16:42:00 to 26-MAY-11 16:42:00 (EST-5)
Location: WHITE PINE
Magnitude: 55.00 EG
Reported by: Law Enforcement

Numerous trees and power lines were reported down.

Hail in SULLIVAN, TENNESSEE
From 26-MAY-11 16:46:00 to 26-MAY-11 16:46:00 (EST-5)
Location: BRISTOL
Magnitude: 1.25 
Reported by: Amateur Radio

Half dollar size hail occurred at the Bristol Country Club.

Thunderstorm Wind in COCKE, TENNESSEE
From 26-MAY-11 16:48:00 to 26-MAY-11 16:48:00 (EST-5)
Location: BYBEE
Magnitude: 50.00 EG
Reported by: Law Enforcement

A few trees were reported down.

Thunderstorm Wind in MARION, TENNESSEE
From 26-MAY-11 00:30:00 to 26-MAY-11 00:30:00 (CST-6)
Location: EBENEZER
Magnitude: 50.00 EG
Reported by: Law Enforcement

Numerous trees were reported down across the county.

Thunderstorm Wind in SEQUATCHIE, TENNESSEE
From 26-MAY-11 00:45:00 to 26-MAY-11 00:45:00 (CST-6)
Location: DUNLAP
Magnitude: 50.00 EG
Reported by: Law Enforcement

Numerous trees, power lines and telephone lines were reported down in Dunlap and the surrounding area.

Thunderstorm Wind in MORGAN, TENNESSEE
From 26-MAY-11 02:15:00 to 26-MAY-11 02:15:00 (EST-5)
Location: SUNBRIGHT
Magnitude: 50.00 EG
Reported by: Law Enforcement

A few trees were reported down near Sunbright.

Thunderstorm Wind in BRADLEY, TENNESSEE
From 26-MAY-11 02:50:00 to 26-MAY-11 02:50:00 (EST-5)
Location: CLEVELAND
Magnitude: 50.00 EG
Reported by: Law Enforcement

Trees and power lines were reported down near Cleveland.

Thunderstorm Wind in ROANE, TENNESSEE
From 26-MAY-11 10:06:00 to 26-MAY-11 10:06:00 (EST-5)
Location: KINGSTON
Magnitude: 50.00 EG
Reported by: Law Enforcement

A large limb and a few power lines were reported down.

Thunderstorm Wind in BRADLEY, TENNESSEE
From 26-MAY-11 10:15:00 to 26-MAY-11 10:15:00 (EST-5)
Location: CLEVELAND
Magnitude: 50.00 EG
Reported by: Law Enforcement

One tree was reported down.

Thunderstorm Wind in BRADLEY, TENNESSEE
From 26-MAY-11 10:15:00 to 26-MAY-11 10:15:00 (EST-5)
Location: WATERVILLE
Magnitude: 50.00 EG
Reported by: Law Enforcement

A large tree limb was reported down in South Cleveland.

Hail in MONROE, TENNESSEE
From 26-MAY-11 10:55:00 to 26-MAY-11 10:55:00 (EST-5)
Location: MADISONVILLE
Magnitude: 0.88 
Reported by: Law Enforcement

Nickel size hail was reported.

Thunderstorm Wind in JEFFERSON, TENNESSEE
From 26-MAY-11 12:25:00 to 26-MAY-11 12:25:00 (EST-5)
Location: PIEDMONT
Magnitude: 50.00 EG
Reported by: Emergency Manager

A mobile home was heavily damaged due to thunderstorm wind gusts.

Thunderstorm Wind in JEFFERSON, TENNESSEE
From 26-MAY-11 12:25:00 to 26-MAY-11 12:25:00 (EST-5)
Location: JEFFERSON CITY
Magnitude: 50.00 EG
Reported by: Trained Spotter

A tree and a few power lines were reported down.

Hail in JEFFERSON, TENNESSEE
From 26-MAY-11 12:35:00 to 26-MAY-11 12:35:00 (EST-5)
Location: JEFFERSON CITY
Magnitude: 1.00 
Reported by: Emergency Manager

Quarter size hail was reported.

Hail in HAMBLEN, TENNESSEE
From 26-MAY-11 12:37:00 to 26-MAY-11 12:37:00 (EST-5)
Location: MORRISTOWN
Magnitude: 1.25 
Reported by: NWS Employee

Half dollar size hail was reported near Highway 11E.

Thunderstorm Wind in HAMBLEN, TENNESSEE
From 26-MAY-11 12:40:00 to 26-MAY-11 12:40:00 (EST-5)
Location: MORRISTOWN
Magnitude: 50.00 EG
Reported by: Newspaper

A large tree and power lines were reported down on a Dentist Office.

Hail in BLOUNT, TENNESSEE
From 26-MAY-11 12:45:00 to 26-MAY-11 12:45:00 (EST-5)
Location: MARYVILLE
Magnitude: 1.50 
Reported by: Trained Spotter

Ping pong ball size hail was reported.

Hail in MONROE, TENNESSEE
From 26-MAY-11 12:45:00 to 26-MAY-11 12:45:00 (EST-5)
Location: MADISONVILLE
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported.

Hail in HAMBLEN, TENNESSEE
From 26-MAY-11 12:50:00 to 26-MAY-11 12:50:00 (EST-5)
Location: MORRISTOWN
Magnitude: 1.00 
Reported by: Amateur Radio

Quarter size hail was reported near the College Square Mall.

Hail in BLOUNT, TENNESSEE
From 26-MAY-11 13:13:00 to 26-MAY-11 13:13:00 (EST-5)
Location: MARBLE HILL
Magnitude: 1.25 
Reported by: Amateur Radio

Half dollar size hail was reported.

Hail in BLOUNT, TENNESSEE
From 26-MAY-11 13:25:00 to 26-MAY-11 13:25:00 (EST-5)
Location: MARYVILLE
Magnitude: 1.25 
Reported by: Amateur Radio

Half dollar size hail was reported in the vicinity of Foothills Mall.

Hail in BLOUNT, TENNESSEE
From 26-MAY-11 13:30:00 to 26-MAY-11 13:30:00 (EST-5)
Location: MARYVILLE
Magnitude: 1.75 
Reported by: Trained Spotter

Golf ball size hail was reported.

Hail in BLOUNT, TENNESSEE
From 26-MAY-11 13:45:00 to 26-MAY-11 13:45:00 (EST-5)
Location: MARYVILLE
Magnitude: 1.50 
Reported by: Trained Spotter

Ping pong ball size hail was reported.