A strong low pressure system along with an associated cold front tracked across the area triggering thunderstorms during the evening and overnight hours.  A tornado touched down in eastern Monroe County, then tracked across southern Loudon County and finally dissipated in western Blount County.  Another weak tornado touched down briefly in Polk County.

Tornado in MONROE, TENNESSEE
From 25-APR-10 00:50:00 to 25-APR-10 00:55:00 (EST-5)
Location: VONORE
Tornado F-scale: EF0
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The NWS storm survey determined a tornado developed near the Hugh Storage Facility  2 miles west southwest Vonore,  It was classified as an EF0 tornado with winds estimated at 80 mph and a path width of 50 yards.  The tornado produced damage near the Pro-Tex plant.

Tornado in POLK, TENNESSEE
From 25-APR-10 01:05:00 to 25-APR-10 01:12:00 (EST-5)
Location: POSTELLE
Tornado F-scale: EF0
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tornado briefly touched down just southwest of highway 64 just west of Ducktown and continued northeast before quickly dissipating. The tornado snapped and twisted 10 trees in its path with 70 mph winds before dissipating.

Thunderstorm Wind in MCMINN, TENNESSEE
From 25-APR-10 00:30:00 to 25-APR-10 00:40:00 (EST-5)
Location: ATHENS
Magnitude: 60.00 MG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

The Daily Post-Athenian newspaper reported several trees and powerlines downed by thunderstorms winds across the county. Around 2000 homes lost power.

Thunderstorm Wind in LOUDON, TENNESSEE
From 25-APR-10 00:55:00 to 25-APR-10 01:05:00 (EST-5)
Location: GREENBACK
Magnitude: 70.00 EG
Property damage: 120.00K
Crop damage: 0.00K
Reported by: Newspaper

The Daily Times newspaper in Maryville reported a home was destroyed and several trees and powerlines downed by thunderstorm winds near Greenback.

Thunderstorm Wind in MONROE, TENNESSEE
From 25-APR-10 00:50:00 to 25-APR-10 01:00:00 (EST-5)
Location: VONORE
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The emergency manager reported a barn was destroyed and a roof blown off a house at the intersection of Lakeside Road and Kincaid Road southwest of Vonore.  Several other homes and businesses were also damaged in the area.

Thunderstorm Wind in BLOUNT, TENNESSEE
From 25-APR-10 01:03:00 to 25-APR-10 01:15:00 (EST-5)
Location: LANIER
Magnitude: 65.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio personnel reported a roof was blown off a house on Thompson Bridge Road just across the county line from Greenback.

Tornado in BLOUNT, TENNESSEE
From 25-APR-10 01:04:00 to 25-APR-10 01:09:00 (EST-5)
Location: LANIER
Tornado F-scale: EF2
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The NWS storm survey determined a tornado tracked from Loudon County for one-half of a mile along Thompson Bridge road.  It was classified as an EF2 tornado with winds estimated at 110 mph with a path width of 100 yards.

Thunderstorm Wind in BLOUNT, TENNESSEE
From 25-APR-10 01:04:00 to 25-APR-10 01:10:00 (EST-5)
Location: LANIER
Magnitude: 65.00 EG
Property damage: 120.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported a home destroyed and several trees downed by thunderstorm winds on Cannon Road.

Thunderstorm Wind in POLK, TENNESSEE
From 25-APR-10 01:05:00 to 25-APR-10 01:15:00 (EST-5)
Location: DUCKTOWN
Magnitude: 60.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported several trees downed by thunderstorm winds in the southeast part of the county from Isabella to Ducktown to Farner.

Thunderstorm Wind in MARION, TENNESSEE
From 24-APR-10 17:35:00 to 24-APR-10 17:45:00 (CST-6)
Location: JASPER
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported several trees downed by thunderstorm winds in Jasper.

Thunderstorm Wind in SEQUATCHIE, TENNESSEE
From 24-APR-10 17:40:00 to 24-APR-10 17:45:00 (CST-6)
Location: DUNLAP
Magnitude: 55.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported one tree downed by thunderstorm winds in Dunlap.

Thunderstorm Wind in MARION, TENNESSEE
From 24-APR-10 22:10:00 to 24-APR-10 22:20:00 (CST-6)
Location: JASPER
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported several trees downed by thunderstorm winds in the Jasper area.

Thunderstorm Wind in MEIGS, TENNESSEE
From 25-APR-10 00:20:00 to 25-APR-10 00:30:00 (EST-5)
Location: DECATUR
Magnitude: 60.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported several trees and powerlines downed by thunderstorm winds in the Decatur area.

Thunderstorm Wind in MCMINN, TENNESSEE
From 25-APR-10 00:30:00 to 25-APR-10 00:32:00 (EST-5)
Location: FIKETON
Magnitude: 73.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Pone Knob ETOS tower reported a measured wind gust at 73 knots (84 mph).

Tornado in LOUDON, TENNESSEE
From 25-APR-10 00:55:00 to 25-APR-10 01:04:00 (EST-5)
Location: GREENBACK
Tornado F-scale: EF1
Property damage: 30.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The NWS storm survey determined the tornado entered from Monroe County tracked across extreme southern Loudon County then continued east into Blount County.  It was classified as an EF1 tornado with winds estimated at 100 mph and a path width of 100 yards.  The tornado snapped around 20 trees in extreme southern Loudon County near Greenback.