A cold front was moving through northeastern Indiana and northwestern Ohio during the late evening hours of May 13th into the early morning hours of May 14th. Despite the time of day, a modest amount of instability (around 500 j/kg Mixed Layer CAPE) was in place along the front. Two rounds of storms moved through northwestern Ohio. The initial line did not produce any severe weather. The second line did produce severe weather across portions of Van Wert county into western parts of Allen county, including a EF1 tornado in the area of Delphos.

Tornado in VAN WERT, OHIO
From 14-MAY-10 00:47:00 to 14-MAY-10 00:49:00 (EST-5)
Location: MIDDLE PT
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A swath of damage roughly 5 miles long was found from southwest of Delphos, northeast to just northeast of Delphos. The tornado touched down on Bocky Road, roughly a half mile south of State Route 697. Several oak trees were snapped or uprooted (DI: TH DOD: 4), with some structural damage including a TV antenna tower being bent over, garage door blown in and a golf ball being pulled from the west side of a shed and then thrown into the east side of the same shed. As the circulation continued eastward, hardwood tree damage was observed similar to near the touchdown area. A 76 mph wind gust was recorded at a residence along the track of the tornado. Two large wooden play sets were rolled on the ground several yards with one being rolled from a northeast direction to a southeast direction around a garage. The circulation became less organized and eventually dissipated just outside of Delphos, near the intersections of State Road 697, and Delphos-Jennings Road. The circulation was on the ground for just over two miles with a maximum width of 150 yards. Maximum winds are estimated between 90 and 95 mph.

Thunderstorm Wind in ALLEN, OHIO
From 14-MAY-10 00:51:00 to 14-MAY-10 00:53:00 (EST-5)
Location: DELPHOS
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A swath of damage continued across the town of Delphos from Van Wert County into Allen County, near the intersection of West First Street and South Main Street. Tree damage was noted along the way, with minor clay roof pieces damaged on a McDonald's restaurant. As the wind exited the town, a home in the 9000 block of Lincoln Highway had the west side of its roof blown off. The strong wind then crossed US 30, flipping a semi and continuing east until severe damage occurred to a pole barn where the roof and debris was thrown around one tenth of a mile. No damage was observed after this point. Wind speeds are estimated in the 75 to 80 mph range.

Thunderstorm Wind in VAN WERT, OHIO
From 14-MAY-10 00:49:00 to 14-MAY-10 00:51:00 (EST-5)
Location: MIDDLE PT
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A swath of damage roughly 5 miles long was found from southwest of Delphos, northeast to just northeast of Delphos. Evidence of a tornado has been provided in a separate entry. Straight line wind damage continued into the town of Delphos after the dissipation of the circulation. A large, west facing overhead door at the Unverferth Manufacturing Company was blown in with the winds exiting on the north side of the structure out another door. In addition, several stacks of grain hopper bins (4 high and weighing 1000 lbs each) that were not attached to any bases were either shifted or pushed over by the strong winds. As the wind continued into the west side of Delphos, trees were either snapped or uprooted with some additional overhead door damage noted in one building. The wind damage continued into Allen County, near the intersection of West First Street and South Main St. Winds are estimated to be 85 to 90 mph at the start of the damage path, decreasing to around 80 mph as it exits Van Wert County.