A line of severe thunderstorms produced damaging winds across far northwestern Indiana.  Training thunderstorms then resulted in flash flooding across portions of the area.

Flood in LAKE, INDIANA
From 11-MAY-14 18:39:00 to 11-MAY-14 22:00:00 (CST-6)
Location: GRIFFITH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four to five inches of flowing water was reported in parking lots near Cline Avenue and Ridge Road.

Flash Flood in LAKE, INDIANA
From 11-MAY-14 18:44:00 to 11-MAY-14 22:00:00 (CST-6)
Location: WHITING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Around six inches of flowing water was reported on 131st Place between Sheffield Avenue and Calumet Avenue.  Manhole covers were forced out.

Flash Flood in LAKE, INDIANA
From 11-MAY-14 19:04:00 to 12-MAY-14 00:00:00 (CST-6)
Location: LAKE STATION
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Around six inches of flowing water was reported across portions of Central Avenue, Fairview Street, and Grand Boulevard.

Flash Flood in PORTER, INDIANA
From 11-MAY-14 19:41:00 to 12-MAY-14 00:00:00 (CST-6)
Location: SOUTH HAVEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Water was up to the base of the door of a pickup truck on Willow Creek Road just south of Route 6.

Thunderstorm Wind in LAKE, INDIANA
From 11-MAY-14 17:50:00 to 11-MAY-14 17:50:00 (CST-6)
Location: (GYY)GARY MUNI ARPT
Magnitude: 68.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in LAKE, INDIANA
From 11-MAY-14 17:56:00 to 11-MAY-14 17:56:00 (CST-6)
Location: LAKE STATION
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

An eight to ten inch diameter tree was uprooted on Huntington Street.

Hail in LAKE, INDIANA
From 11-MAY-14 18:02:00 to 11-MAY-14 18:04:00 (CST-6)
Location: MERRILLVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in PORTER, INDIANA
From 11-MAY-14 18:10:00 to 11-MAY-14 18:10:00 (CST-6)
Location: CHESTERTON
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in PORTER, INDIANA
From 11-MAY-14 18:15:00 to 11-MAY-14 18:15:00 (CST-6)
Location: TREMONT
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

A tree was blown down at Indiana Dunes State Park.

Flash Flood in LAKE, INDIANA
From 11-MAY-14 18:27:00 to 12-MAY-14 00:00:00 (CST-6)
Location: LAKE STATION
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Vehicles were stranded in two feet of water on Grant Boulevard.

Flash Flood in PORTER, INDIANA
From 11-MAY-14 18:30:00 to 12-MAY-14 00:00:00 (CST-6)
Location: SOUTH HAVEN
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A car stalled in knee deep water in place on Midway Drive and Devonshire Road.

Thunderstorm Wind in PORTER, INDIANA
From 11-MAY-14 18:00:00 to 11-MAY-14 18:00:00 (CST-6)
Location: GARYTON
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Some large trees were blown down in Portage, including near the intersection of Stone Avenue and Willowdale Road.  A roof was partially torn off of El Pueblo Restaurant on Route 6.