A strong low level jet, remnants of a morning complex of storms from Iowa, and increasing instability all combined to create favorable conditions for damaging winds and isolated supercells. One supercell in particular had a storm motion towards the southeast when the line it was associated with moved mainly eastward. This supercell did produce a tornado in Marshall county.

Thunderstorm Wind in MIAMI, INDIANA
From 15-AUG-07 22:55:00 to 15-AUG-07 22:56:00 (EST-5)
Location: PERU
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A 14 inch diameter tree down on 6th street and several 8 to 10 inch diameter trees along Daniels Street in Peru.

Thunderstorm Wind in ADAMS, INDIANA
From 16-AUG-07 00:16:00 to 16-AUG-07 00:17:00 (EST-5)
Location: GENEVA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few trees were reported down in Geneva, near the Jay county line.

Lightning in JAY, INDIANA
From 16-AUG-07 03:38:00 to 16-AUG-07 03:39:00 (EST-5)
Location: PORTLAND
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a house in the 5300 block of E 100 S in Portland. Heavy damage was reported to the upstairs. A County deputy was able to awake the residents and get them to safety. Damage is estimated at $50,000.

Thunderstorm Wind in WELLS, INDIANA
From 16-AUG-07 00:00:00 to 16-AUG-07 00:01:00 (EST-5)
Location: BLUFFTON
Magnitude: 55.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous reports of trees and power lines down across the county.

Hail in STARKE, INDIANA
From 15-AUG-07 20:51:00 to 15-AUG-07 20:52:00 (CST-6)
Location: NORTH JUDSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PULASKI, INDIANA
From 15-AUG-07 21:20:00 to 15-AUG-07 21:21:00 (CST-6)
Location: MONTEREY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in FULTON, INDIANA
From 15-AUG-07 22:27:00 to 15-AUG-07 22:28:00 (EST-5)
Location: KEWANNA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in CASS, INDIANA
From 15-AUG-07 22:55:00 to 15-AUG-07 22:56:00 (EST-5)
Location: TWELVE MILE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WABASH, INDIANA
From 15-AUG-07 23:18:00 to 15-AUG-07 23:19:00 (EST-5)
Location: TREATY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRANT, INDIANA
From 15-AUG-07 23:48:00 to 15-AUG-07 23:49:00 (EST-5)
Location: MIER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in LA PORTE, INDIANA
From 15-AUG-07 20:18:00 to 15-AUG-07 20:19:00 (CST-6)
Location: TRAIL CREEK
Magnitude: 55.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were blown down in and around Michigan City.

Thunderstorm Wind in LA PORTE, INDIANA
From 15-AUG-07 20:29:00 to 15-AUG-07 20:30:00 (CST-6)
Location: LA CROSSE
Magnitude: 60.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Employee

Eight power poles stretching approximately a half mile, were blown over or snapped along US 421 south of Lacrosse. One of these poles landed on a car, minor damage. Numerous trees and tree limbs were also reported down.

Thunderstorm Wind in MARSHALL, INDIANA
From 15-AUG-07 22:20:00 to 15-AUG-07 22:21:00 (EST-5)
Location: CULVER
Magnitude: 60.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees, tree limbs and power lines were blown down in and around Culver. Several of the trees and limbs fell onto houses or a few businesses. Damage in the area is estimated at $250,000.

Thunderstorm Wind in FULTON, INDIANA
From 15-AUG-07 22:33:00 to 15-AUG-07 22:34:00 (EST-5)
Location: GREENOAK
Magnitude: 55.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and tree limbs were blown down onto two mobile homes and a house, as well as several local roads. Damage is estimated at $25,000.

Thunderstorm Wind in FULTON, INDIANA
From 15-AUG-07 22:35:00 to 15-AUG-07 22:36:00 (EST-5)
Location: LEITERS FORD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and tree limbs were reported down.

Thunderstorm Wind in FULTON, INDIANA
From 15-AUG-07 22:50:00 to 15-AUG-07 22:51:00 (EST-5)
Location: ROCHESTER
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and tree limbs were reported down in and around Rochester.

Hail in MIAMI, INDIANA
From 15-AUG-07 22:50:00 to 15-AUG-07 22:51:00 (EST-5)
Location: RIDGEVIEW
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golf ball size hail was reported at the intersection of US-31 and US-24.

Thunderstorm Wind in STARKE, INDIANA
From 15-AUG-07 20:30:00 to 15-AUG-07 20:31:00 (CST-6)
Location: SAN PIERRE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several trees and tree limbs were blown down along US-421.

Thunderstorm Wind in CASS, INDIANA
From 15-AUG-07 22:40:00 to 15-AUG-07 22:41:00 (EST-5)
Location: TWELVE MILE
Magnitude: 60.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down, with 2 houses suffering damage as well as the rear windows of a minivan being broken out.

Tornado in MARSHALL, INDIANA
From 15-AUG-07 22:15:00 to 15-AUG-07 22:21:00 (EST-5)
Location: ARGOS
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The initial touchdown of the tornado was located a large grove of trees along Maple Rd. west of Argos and proceeded rapidly southeast to the southeast side of Argos. The tornado skipped along its track, snapping and uprooting numerous trees, downing power poles and lines and damaging some structures. Two businesses on the south side of Argos, near the intersection of US 31 and State Rd 10 suffered moderate damage. The roof of the Topp Industries plant suffered damage. A McDonalds/BP Station suffered metal siding and roofing damage along with the removal of a few gas pumps. A stationary police cruiser was spun by a combination of the strong winds and a sign post striking the car. Neither the officer, nor anyone else in the path of the tornado was injured. The tornado lifted southeast of this point. Exact damage figures were not available, but are estimated to be at least $500,000.

Thunderstorm Wind in JAY, INDIANA
From 16-AUG-07 00:29:00 to 16-AUG-07 00:30:00 (EST-5)
Location: CENTER
Magnitude: 55.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home suffered severe structural damage from a fallen tree. Other trees were blown down in and around Salamonia as well as near the intersection of 200 N and 300 W. A few branches fell onto power lines. Damage is estimated at $75,000.

Thunderstorm Wind in BLACKFORD, INDIANA
From 16-AUG-07 00:00:00 to 16-AUG-07 00:02:00 (EST-5)
Location: HARTFORD CITY
Magnitude: 70.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees, tree limbs and power lines down across the city and parts of the county. At least one tree fell onto an unoccupied vehicle. Winds were estimated by spotters at around 80 mph.

Thunderstorm Wind in KOSCIUSKO, INDIANA
From 15-AUG-07 23:00:00 to 15-AUG-07 23:01:00 (EST-5)
Location: NAPPANEE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A 10 to 12 inch tree branch was blown down.