Storm Events Database

Storm Events Database

Event Details

Event Flash Flood
-- Flood Cause Heavy Rain
State NORTH DAKOTA
County/Area DUNN
WFO BIS
Begin Date 07/22/2011 19:15:00 MST-7
Begin Range 19
Begin Azimuth N
Begin Location WERNER
Begin Lat/Lon 47.65/-102.52
End Date 07/22/2011 23:00:00 MST-7
End Range 19
End Azimuth N
End Location KILLDEER
End Lat/Lon 47.65/-102.75
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 10.00K
Crop Damage 0.00K
Episode Narrative A severe thunderstorm outbreak materialized over west and south central North Dakota in the late afternoon and evening hours of July 22nd, lasting into the early morning hours of the 23rd. Tornado watch numbers 673, 674, and 675 were in effect for this event. A tornadic storm developed over south central North Dakota along a surface warm front. Much of the severe weather for this event originated over eastern Montana associated with a strong upper level jet streak. This activity pushed into western North Dakota, and tracked eastward throughout the evening. The severe weather event resulted in large hail, high winds, tornadoes, and flash floods.
Event Narrative There were two reports of very heavy rain from northern Dunn County. One was 1.24 inches in 25 minutes about 10 miles northeast of Dunn Center and the other was 1.50 inches in 45 minutes from about 6 miles north-northeast of Killdeer. Reports of flash flooding of low lying and poor drainage areas were received. Damage was not significant.


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 455.00K 0.00K
ALMONT MORTON CO. ND 07/22/2011 17:37 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
ALMONT MORTON CO. ND 07/22/2011 17:40 CST-6 Tornado EF0 0 0 0.00K 0.00K
BEACH GOLDEN VALLEY CO. ND 07/22/2011 17:40 MST-7 Thunderstorm Wind 57 kts. MG 0 0 0.00K 0.00K
GRASSY BUTTE MCKENZIE CO. ND 07/22/2011 18:00 MST-7 Heavy Rain 0 0 0.00K 0.00K
GRASSY BUTTE MCKENZIE CO. ND 07/22/2011 18:00 MST-7 Heavy Rain 0 0 0.00K 0.00K
GRASSY BUTTE MCKENZIE CO. ND 07/22/2011 18:23 MST-7 Tornado EF0 0 0 100.00K 0.00K
AMIDON SLOPE CO. ND 07/22/2011 18:30 MST-7 Thunderstorm Wind 52 kts. EG 0 0 5.00K 0.00K
GRASSY BUTTE MCKENZIE CO. ND 07/22/2011 18:31 MST-7 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
BELFIELD STARK CO. ND 07/22/2011 18:35 MST-7 Tornado EF0 0 0 0.00K 0.00K
KILLDEER DUNN CO. ND 07/22/2011 18:39 MST-7 Thunderstorm Wind 51 kts. MG 0 0 0.00K 0.00K
WERNER DUNN CO. ND 07/22/2011 18:53 MST-7 Heavy Rain 0 0 0.00K 0.00K
SOUTH HEART STARK CO. ND 07/22/2011 19:05 MST-7 Tornado EF0 0 0 0.00K 0.00K
RHAME BOWMAN CO. ND 07/22/2011 19:05 MST-7 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
MEDORA BILLINGS CO. ND 07/22/2011 19:05 MST-7 Flash Flood 0 0 25.00K 0.00K
RHAME BOWMAN CO. ND 07/22/2011 19:12 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
MARSHALL DUNN CO. ND 07/22/2011 19:14 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
WERNER DUNN CO. ND 07/22/2011 19:15 MST-7 Flash Flood 0 0 10.00K 0.00K
MARMARTH SLOPE CO. ND 07/22/2011 19:28 MST-7 Funnel Cloud 0 0 0.00K 0.00K
NEW ENGLAND HETTINGER CO. ND 07/22/2011 19:56 MST-7 Thunderstorm Wind 56 kts. EG 0 0 30.00K 0.00K
REGENT HETTINGER CO. ND 07/22/2011 20:01 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
ZAP MERCER CO. ND 07/22/2011 20:10 CST-6 Heavy Rain 0 0 0.00K 0.00K
ZAP MERCER CO. ND 07/22/2011 20:30 CST-6 Hail 1.25 in. 0 0 0.00K 0.00K
ZAP MERCER CO. ND 07/22/2011 20:40 CST-6 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
ZAP MERCER CO. ND 07/22/2011 20:40 CST-6 Hail 1.25 in. 0 0 0.00K 0.00K
GLEN ULLIN MORTON CO. ND 07/22/2011 21:10 CST-6 Tornado EF0 0 0 0.00K 0.00K
SWEET BRIAR MORTON CO. ND 07/22/2011 21:45 CST-6 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
SWEET BRIAR MORTON CO. ND 07/22/2011 21:45 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
MANDAN MORTON CO. ND 07/22/2011 21:54 CST-6 Thunderstorm Wind 55 kts. MG 0 0 0.00K 0.00K
PICK CITY MERCER CO. ND 07/22/2011 21:54 CST-6 Thunderstorm Wind 61 kts. EG 0 0 50.00K 0.00K
BISMARCK BURLEIGH CO. ND 07/22/2011 22:01 CST-6 Thunderstorm Wind 56 kts. EG 0 0 15.00K 0.00K
NEW TOWN MOUNTRAIL CO. ND 07/22/2011 22:03 CST-6 Flash Flood 0 0 20.00K 0.00K
MANDAN MORTON CO. ND 07/22/2011 22:06 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
MANDAN MORTON CO. ND 07/22/2011 22:10 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
MANDAN MORTON CO. ND 07/22/2011 22:13 CST-6 Thunderstorm Wind 52 kts. MG 0 0 0.00K 0.00K
LINTON EMMONS CO. ND 07/22/2011 22:50 CST-6 Thunderstorm Wind 61 kts. EG 0 0 35.00K 0.00K
REGENT HETTINGER CO. ND 07/22/2011 23:00 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
ZEELAND MCINTOSH CO. ND 07/22/2011 23:30 CST-6 Thunderstorm Wind 70 kts. EG 0 0 65.00K 0.00K
ASHLEY MCINTOSH CO. ND 07/22/2011 23:50 CST-6 Thunderstorm Wind 70 kts. EG 0 0 75.00K 0.00K
WOODWORTH STUTSMAN CO. ND 07/23/2011 00:15 CST-6 Flash Flood 0 0 25.00K 0.00K
Totals: 0 0 455.00K 0.00K