An upper level low pressure system moving slowly across west and central North Dakota coincided with afternoon destabilization of the atmosphere to trigger scattered thunderstorms over the southwest and south central parts of the state. A few of these storms became severe during the evening hours with several reports of large hail. In addition, flash flooding from very heavy rainfall was reported over south central North Dakota, where storms redeveloped for several hours over the same general area.

Flash Flood in KIDDER, NORTH DAKOTA
From 15-JUN-09 19:00:00 to 15-JUN-09 23:00:00 (CST-6)
Location: TUTTLE
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms with heavy rainfall continuously moved through western Kidder County for several hours during the evening of the 15th. Doppler radar estimated rainfall amounts ranged from four to seven inches across the warned area. Water was reported to be a foot deep blocking passage over some roads.

Flash Flood in BURLEIGH, NORTH DAKOTA
From 15-JUN-09 19:00:00 to 15-JUN-09 23:00:00 (CST-6)
Location: WILTON
Flood cause: Heavy Rain
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms with heavy rainfall continuously redeveloped in eastern Morton County and trained through Burleigh County for several hours during the evening of the 15th. Rainfall reports ranged from three to six inches in Bismarck, to 10.2 inches seven miles east of Bismarck. Flash flooding resulted from the heavy rainfall in Bismarck and points east, including water one to two feet deep flowing over Interstate 94 near Sterling at the peak of the event.  Many homes had water in their basements. City streets in Bismarck were flooded and vehicles had water damage.
The heavy rainfall also resulted in a flood warning for Apple Creek, which quickly rose to major flood stage by the morning of the 16th.

Flash Flood in MORTON, NORTH DAKOTA
From 15-JUN-09 19:00:00 to 15-JUN-09 23:00:00 (CST-6)
Location: MANDAN
Flood cause: Heavy Rain
Property damage: 1.80M
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms with heavy rainfall continuously redeveloped across far eastern Morton County for several hours during the evening of the 15th. Public reports of three to four inches of rainfall were received in the city of Mandan along with street flooding. Some homes had water in their basements. A 30 foot by 40 foot section of roof collapsed at a bowling alley in Mandan. Newspaper reports were that the flat roof failed as a result of the added stress from the weight of the rain water. Two elementary schools in Mandan also had water damage. There were no injuries or deaths.

Heavy Rain in MORTON, NORTH DAKOTA
From 15-JUN-09 22:12:00 to 15-JUN-09 22:12:00 (CST-6)
Location: MANDAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A measured rainfall amount of 4.00 inches was reported.

Heavy Rain in BURLEIGH, NORTH DAKOTA
From 15-JUN-09 22:15:00 to 15-JUN-09 22:15:00 (CST-6)
Location: BISMARCK
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A measured rainfall amount of 2.56 inches was reported.

Heavy Rain in BURLEIGH, NORTH DAKOTA
From 15-JUN-09 23:15:00 to 15-JUN-09 23:15:00 (CST-6)
Location: FT LINCOLN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A measured rainfall amount of 7.20 inches was reported.

Heavy Rain in BURLEIGH, NORTH DAKOTA
From 16-JUN-09 02:30:00 to 16-JUN-09 02:30:00 (CST-6)
Location: BISMARCK
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A measured rainfall amount of 10.20 inches was reported.

Hail in BURLEIGH, NORTH DAKOTA
From 15-JUN-09 17:51:00 to 15-JUN-09 17:56:00 (CST-6)
Location: STERLING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MORTON, NORTH DAKOTA
From 15-JUN-09 19:38:00 to 15-JUN-09 19:44:00 (CST-6)
Location: MANDAN MUNI ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BURLEIGH, NORTH DAKOTA
From 15-JUN-09 20:10:00 to 15-JUN-09 20:15:00 (CST-6)
Location: MENOKEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in BURLEIGH, NORTH DAKOTA
From 15-JUN-09 21:27:00 to 15-JUN-09 21:27:00 (CST-6)
Location: BISMARCK
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A measured rainfall amount of 5.20 inches was reported.

Heavy Rain in BURLEIGH, NORTH DAKOTA
From 15-JUN-09 22:04:00 to 15-JUN-09 22:04:00 (CST-6)
Location: (BIS)BISMARCK MUNI A
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A measured rainfall amount of 5.27 inches was reported.

Hail in HETTINGER, NORTH DAKOTA
From 15-JUN-09 16:22:00 to 15-JUN-09 16:26:00 (MST-7)
Location: MOTT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SLOPE, NORTH DAKOTA
From 15-JUN-09 17:42:00 to 15-JUN-09 17:47:00 (MST-7)
Location: AMIDON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter