During the late morning hours on September 16th, a warm front lifted northward through Ohio allowing for a significant destabilization of the atmosphere. By early afternoon, a severe thunderstorm watch was issued for most of northern Ohio. Severe thunderstorms swept across Ohio ahead of a cold front beginning in the mid afternoon and lasting well into the evening.  Two devastating tornadoes occurred in northern Ohio.  An EF2 tornado touched down in Wayne County near Wooster.  This tornado left an eleven and a half mile long damage path and damaged over a hundred homes and buildings.  A second tornado touched down in southern Holmes County.  This tornado was rated an EF1 and was on the ground for about three miles.

Hail in HANCOCK, OHIO
From 16-SEP-10 14:15:00 to 16-SEP-10 14:15:00 (EST-5)
Location: ARLINGTON
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms produced quarter size hail.

Thunderstorm Wind in HURON, OHIO
From 16-SEP-10 15:40:00 to 16-SEP-10 15:40:00 (EST-5)
Location: NEW LONDON
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds downed two large trees as well as several large limbs. Some powerlines were downed near New London.

Thunderstorm Wind in MAHONING, OHIO
From 16-SEP-10 18:50:00 to 16-SEP-10 18:50:00 (EST-5)
Location: PETERSBURG
Magnitude: 61.00 MG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds measured at 70 mph downed several trees.  At least one home sustained roof damage.

Tornado in HOLMES, OHIO
From 16-SEP-10 17:00:00 to 16-SEP-10 17:05:00 (EST-5)
Location: FARMERSTOWN
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF1 tornado touched down in rural Clark Township near the intersection of Township Road 183 and Township Road 190.  The tornado then moved east for just over three miles before lifting near the intersection of Township Roads 165 and 166.  Several homes and buildings were damaged along the tornado path.  Most of the damage was from lost roofing or siding, but a few small outbuildings were also leveled.  Dozens of trees were toppled along the damage path which was up to 75 yards in width.

Thunderstorm Wind in LORAIN, OHIO
From 16-SEP-10 15:45:00 to 16-SEP-10 15:45:00 (EST-5)
Location: AVON LAKE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Thunderstorm winds downed two trees on State Route 83.

Thunderstorm Wind in PORTAGE, OHIO
From 16-SEP-10 16:55:00 to 16-SEP-10 16:55:00 (EST-5)
Location: GARRETTSVILLE
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorm winds downed several trees along State Route 88.

Thunderstorm Wind in PORTAGE, OHIO
From 16-SEP-10 16:55:00 to 16-SEP-10 16:55:00 (EST-5)
Location: FREEDOM
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorm winds toppled a tree.  The tree landed on a mobile home and caused some damage.

Hail in SANDUSKY, OHIO
From 16-SEP-10 14:41:00 to 16-SEP-10 14:41:00 (EST-5)
Location: CLYDE
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorms produced quarter size hail.

Hail in WOOD, OHIO
From 16-SEP-10 14:00:00 to 16-SEP-10 14:00:00 (EST-5)
Location: WAYNE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms produced quarter size hail.

Tornado in WAYNE, OHIO
From 16-SEP-10 16:26:00 to 16-SEP-10 16:45:00 (EST-5)
Location: WOOSTER
Tornado F-scale: EF2
Property damage: 35.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down in Wayne County two miles southwest of downtown Wooster around 5:26 pm. This tornado strengthened to EF2 intensity and continued on the ground for over 11 miles before finally lifting two miles west of Dalton.  Extensive damage occurred along the damage path with dozens of homes and buildings damaged.  After the initial touchdown, the tornado quickly intensified to an EF2 as it continued on the ground to the east northeast.  The tornado crossed Prairie Lane and Timken Road and then moved across St. Mary's Cemetery.  Damage at the cemetery was extensive with 80 of 81 large trees knocked down and over two hundred gravestones broken or toppled.  From the cemetery, the tornado crossed Madison Avenue and moved across the Ohio Agricultural Research and Development Center (OARDC).  Significant damage occurred on the OADRC campus with several buildings severely damaged.  A laboratory in one the buildings was destroyed.  Two historic homes on the property sustained significant roof damage and several greenhouses were destroyed.  Two barns and a machine shop were also leveled.  The 102 year old Secrest Arboretum on the campus lost over 800 trees and many research projects were damaged or destroyed.  The tornado tossed and destroyed several vehicles and a lot of farm machinery was also damaged or destroyed.  From the OARDC campus, the tornado continued east along Secrest Road damaging or destroying several homes and buildings.  The tornado weakened to EF1 intensity as it crossed Sylvan Road and to an EF0 as it crossed Barnard Road.  The tornado then remained either an EF0 or EF1 until it lifted near the intersection of Kidron Road and Old Lincoln Way just west of Dalton.  A total of nine homes were either destroyed or sustained major damage.  Another 90 homes sustained lesser amounts of damage.  In addition, at least 50 barns, garages and other outbuildings were damaged of destroyed.  Thousands of trees were also toppled along the damage path which was up to 150 yards in width.  Twenty eight utility poles were knocked down in Wooster alone and high tension transmission lines were also torn down by the tornado.  The downed transmission lines affected four substations and resulted in around a third of Wayne County loosing power right after the tornado.  The OARDC campus was closed for over a week and two local school districts had to close on September 17th because of the power outages.  Only one very minor injury was reported.

Hail in WOOD, OHIO
From 16-SEP-10 13:46:00 to 16-SEP-10 13:46:00 (EST-5)
Location: CYGNET
Magnitude: 1.25 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced quarter to half dollar size hail.