A combination of a prefrontal outflow boundary drapped across northern Indiana and a MCV from overnight convection across Nebraska the night before provided the focus for convection to develop. In addition, unstable conditions develop during the late morning and early afternoon with SBCAPES of 1500 to 2500 j/kg. Storms began to develop on this boundary during the mid afternoon hours and rapidly became severe. A line of storms associated with the MCV and an approaching trough moved across the northern part of Indiana. This line evolved into several small bowing segments which produced numerous reports of damaging winds and isolated tornadoes.

Thunderstorm Wind in WHITLEY, INDIANA
From 15-MAY-07 17:15:00 to 15-MAY-07 17:16:00 (EST-5)
Location: COLUMBIA CITY ARPT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

The cap from a silo was blown off.

Thunderstorm Wind in FULTON, INDIANA
From 15-MAY-07 15:29:00 to 15-MAY-07 15:30:00 (EST-5)
Location: LEITERS FORD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large limb was blown down onto a road, near Leiters Ford, blocking the road for a short time. In addition, reports of other trees being blown down were received across the northwest part of the county.

Thunderstorm Wind in LA PORTE, INDIANA
From 15-MAY-07 14:49:00 to 15-MAY-07 14:50:00 (CST-6)
Location: LA PORTE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and power lines down across the city of La Porte. Winds were estimated 65 to 70 mph.

Thunderstorm Wind in DE KALB, INDIANA
From 15-MAY-07 17:40:00 to 15-MAY-07 17:41:00 (EST-5)
Location: SUMMIT
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were blown down near Ashley.

Thunderstorm Wind in KOSCIUSKO, INDIANA
From 15-MAY-07 13:50:00 to 15-MAY-07 13:51:00 (EST-5)
Location: SYRACUSE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Recorded at the National Weather Service office.

Thunderstorm Wind in KOSCIUSKO, INDIANA
From 15-MAY-07 17:00:00 to 15-MAY-07 17:01:00 (EST-5)
Location: WARSAW
Magnitude: 55.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

A maple tree fell onto a business in Winona Lake causing roof damage to the building.

Thunderstorm Wind in PULASKI, INDIANA
From 15-MAY-07 14:49:00 to 15-MAY-07 14:50:00 (CST-6)
Location: MEDARYVILLE
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A semi was flipped over near the interesection of US-421 and State Route 14.

Thunderstorm Wind in FULTON, INDIANA
From 15-MAY-07 16:30:00 to 15-MAY-07 16:31:00 (EST-5)
Location: ROCHESTER
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two 12 inch diameter or larger trees were blown down.

Thunderstorm Wind in ST. JOSEPH, INDIANA
From 15-MAY-07 16:00:00 to 15-MAY-07 16:05:00 (EST-5)
Location: SOUTH BEND
Magnitude: 60.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees, tree limbs, power lines and poles were blown down in and around the South Bend/Mishawaka area. A spire from the basilica on the Notre Dame campus was knocked off.

Thunderstorm Wind in CASS, INDIANA
From 15-MAY-07 16:30:00 to 15-MAY-07 16:31:00 (EST-5)
Location: LOGANSPORT
Magnitude: 60.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees, tree limbs, power lines reported down in and around Logansport. At least 4 homes were reported to have trees down onto them, suffering minor damage. Some structures also sustained shingle and siding damage. A tree fell onto a car as well.

Thunderstorm Wind in LAGRANGE, INDIANA
From 15-MAY-07 16:40:00 to 15-MAY-07 16:41:00 (EST-5)
Location: ONTARIO
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Local officials reported scattered trees and power lines down across the nothern part of the county.

Thunderstorm Wind in MIAMI, INDIANA
From 15-MAY-07 16:45:00 to 15-MAY-07 16:46:00 (EST-5)
Location: PERU
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Local officials reported receiving scattered tree and power line damage across the central part of the county.

Thunderstorm Wind in KOSCIUSKO, INDIANA
From 15-MAY-07 16:50:00 to 15-MAY-07 16:51:00 (EST-5)
Location: OSWEGO
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

A 12 inch diameter maple tree snapped off and fell onto a garage and power lines.

Thunderstorm Wind in PULASKI, INDIANA
From 15-MAY-07 14:20:00 to 15-MAY-07 14:21:00 (CST-6)
Location: THORNHOPE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

There were scattered reports of trees and power lines down across the southern part of the county.

Thunderstorm Wind in WHITE, INDIANA
From 15-MAY-07 14:57:00 to 15-MAY-07 14:58:00 (EST-5)
Location: GARWOOD ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two trees were blown down just east of Monon.

Thunderstorm Wind in KOSCIUSKO, INDIANA
From 15-MAY-07 16:45:00 to 15-MAY-07 16:46:00 (EST-5)
Location: OSWEGO
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

Two large trees at least 2 feet in diameter were snapped and hit the corner of a house.

Lightning in KOSCIUSKO, INDIANA
From 15-MAY-07 17:33:00 to 15-MAY-07 17:34:00 (EST-5)
Location: WARSAW
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Newspaper

Fire officials were dispatched to a residence in the Harrison Landing subdivision of Warsaw where lightning struck a house. The fire was contained within 30 minutes. No one was injured in the fire. Damage was estimated at around $40,000.

Thunderstorm Wind in ELKHART, INDIANA
From 15-MAY-07 16:30:00 to 15-MAY-07 16:31:00 (EST-5)
Location: MILLERSBURG
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several large branches were blown down.

Thunderstorm Wind in DE KALB, INDIANA
From 15-MAY-07 17:40:00 to 15-MAY-07 17:41:00 (EST-5)
Location: ST JOE
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two power poles were snapped off.

Thunderstorm Wind in NOBLE, INDIANA
From 15-MAY-07 17:24:00 to 15-MAY-07 17:25:00 (EST-5)
Location: KENDALLVILLE
Magnitude: 60.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees, tree limbs, power lines and poles were down in and around Kendallville. At least 2 vehicles suffered damage from falling trees. A 30 to 40 foot tall maple tree snapped and fell between two houses, luckily not causing any damage to either one.

Thunderstorm Wind in WHITE, INDIANA
From 15-MAY-07 16:03:00 to 15-MAY-07 16:04:00 (EST-5)
Location: NORWAY
Magnitude: 60.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees, tree limbs, power lines and poles were blown down across the county. At least one gustnado was sighted by a county sheriff deputy. It touched down in an open field and then lifted without damage. Two large trees fell onto a residence on Ireland St in Monticello causing some roof damage, but luckily no injuries to those home at the time eating supper.

Thunderstorm Wind in NOBLE, INDIANA
From 15-MAY-07 17:15:00 to 15-MAY-07 17:16:00 (EST-5)
Location: ALBION
Magnitude: 60.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees, tree limbs, power lines and poles were blown down in and around Albion. One tree branch fell onto a moving van in the HIdden Diamonds Park in Albion. The driver was not injured.

Thunderstorm Wind in LA PORTE, INDIANA
From 15-MAY-07 16:07:00 to 15-MAY-07 16:08:00 (CST-6)
Location: LA PORTE
Magnitude: 56.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Several trees and power lines down in the area, as well as a recorded 65 mph gust. Some of these trees fell onto occupied residences. Luckily no one was injured in any of these cases. However, one injury was reported when a tree split and a limb fell onto a County Deputy Coroner who was on a motorcycle. He suffered 2 broken bones in the lower part of his legs. At least $100,000 in damage is estimated from the storms.

Thunderstorm Wind in FULTON, INDIANA
From 15-MAY-07 16:15:00 to 15-MAY-07 16:16:00 (EST-5)
Location: LEITERS FORD
Magnitude: 69.00 MG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Emergency Manager

At least 6 homes were damaged by trees or tree limbs, with numerous other homes suffering lost shingles, siding and fascia. Numerous vehicles were also damaged from falling trees. Damage of at least $150,000 is estimated.

Thunderstorm Wind in MARSHALL, INDIANA
From 15-MAY-07 15:45:00 to 15-MAY-07 15:51:00 (EST-5)
Location: ARGOS
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees, tree limbs, power lines and poles were reported down across the county, including Argos, Plymouth, and Bourbon. No reports of significant structure damage were received.

Thunderstorm Wind in KOSCIUSKO, INDIANA
From 15-MAY-07 16:10:00 to 15-MAY-07 16:12:00 (EST-5)
Location: MILFORD
Magnitude: 60.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Sporadic tree and power line damage was reported across the county. However the highest concentration of damage was found along a path from Hastings to Milford. In and around the Hastings area, A house suffered damage to a add on room where the shingles were peeled off and thrown into the yard. Numerous trees and power lines down in the town of Milford, closing several streets, with a partially rotten tree falling onto a parked van, destroying the back half of the van and lifting the front right wheel off the ground several inches.

Tornado in ST. JOSEPH, INDIANA
From 15-MAY-07 15:45:00 to 15-MAY-07 15:47:00 (EST-5)
Location: NEW CARLISLE
Tornado F-scale: EF0
Property damage: 13.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Local residents south of New Carlisle reported seeing a funnel pass over several rows of trees, causing some damage to the tree tops. The funnel subsequently touched down in an open field and moved rapdily east. A section of an irrigation system was twisted and destroyed in an open field. In addition, strong winds entered an open barn area resulting in much of the roofing material being removed. The winds also weakened the supports causing partial structural failure to a lean-to. A combine in the lean-to sustained some damage. A large tree also fell onto the residence causing some roof damage. Debris was thrown a few hundred feet into an open field. It appears that the tornado lifted shortly after affecting the residence. No injuries occurred with the brief touch down. The irrigation system damages has been estimated at $13,000. Damage estimates to the house and barn are to be determined.