Thunderstorms once again erupted during the afternoon of the 31st as an upper level wave moved through the region, producing severe weather for the first time in five weeks across the region. The storms gradually shifted south across central Indiana through the evening, impacting much of the region along and south of the Interstate 70 corridor. Outdoor events on the holiday weekend were once again affected by the weather, as storms exhibited plenty of cloud to ground lightning strikes and locally torrential rainfall. Several thunderstorms also produced large hail and damaging winds, particularly across Putnam and Vermillion Counties, and also across the western Indianapolis metro area during the late afternoon. Thunderstorms continued to produce gusty winds which knocked trees and limbs down through the evening, particularly across Knox County and near Vincennes. Many locations, especially along and south of Interstate 70, received generous rainfall on the afternoon and evening of the 31st as strong to severe thunderstorms impacted the region. One to two inches fell in several locations over southern portions of central Indiana. Flooding was also noted across Daviess County.

Hail in MARION, INDIANA
From 31-AUG-13 16:15:00 to 31-AUG-13 16:17:00 (EST-5)
Location: FIVE PTS
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Public

Hail in MARION, INDIANA
From 31-AUG-13 16:30:00 to 31-AUG-13 16:32:00 (EST-5)
Location: TREMONT
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in PUTNAM, INDIANA
From 31-AUG-13 17:17:00 to 31-AUG-13 17:17:00 (EST-5)
Location: ROACHDALE
Magnitude: 52.00 MG
Property damage: 5.50K
Reported by: Emergency Manager

Trees and power lines were downed in this location due to a measured 60 mph thunderstorm wind gust.

Thunderstorm Wind in VERMILLION, INDIANA
From 31-AUG-13 18:24:00 to 31-AUG-13 18:24:00 (EST-5)
Location: NEWPORT
Magnitude: 52.00 EG
Property damage: 5.00K
Reported by: Law Enforcement

Trees were down and blocking a road in this location due to damaging thunderstorm wind gusts.

Thunderstorm Wind in KNOX, INDIANA
From 31-AUG-13 23:10:00 to 31-AUG-13 23:10:00 (EST-5)
Location: BRUCEVILLE
Magnitude: 52.00 EG
Property damage: 5.00K
Reported by: Emergency Manager

Trees were reported down on Old Highway 41, north of Vincennes and south of Oaktown, due to damaging thunderstorm wind gusts.

Thunderstorm Wind in KNOX, INDIANA
From 31-AUG-13 23:12:00 to 31-AUG-13 23:12:00 (EST-5)
Location: VINCENNES
Magnitude: 48.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree limbs were reported down due to strong thunderstorm wind gusts.

Thunderstorm Wind in KNOX, INDIANA
From 31-AUG-13 23:15:00 to 31-AUG-13 23:15:00 (EST-5)
Location: BRUCEVILLE
Magnitude: 52.00 EG
Property damage: 1.00K
Reported by: Emergency Manager

A tree was downed at Camp Arthur Road and Smith Road due to damaging thunderstorm wind gusts. Some utility lines were also reported down around the county.

Flood in DAVIESS, INDIANA
From 31-AUG-13 23:50:00 to 31-AUG-13 23:59:00 (EST-5)
Location: WASHINGTON
Flood cause: Heavy Rain
Property damage: 0.50K
Crop damage: 0.50K
Reported by: Law Enforcement

Flooding was occurred over Highway 50, east of Washington, due to thunderstorm heavy rainfall.