Storm Events Database

Event Details

Event Hail
Magnitude 1.75 in.
State NORTH DAKOTA
County/Area BURKE
WFO BIS
Report Source Law Enforcement
NCDC Data Source CSV
Begin Date 2010-08-12 19:42:00.0 CST-6
Begin Location 0W FLAXTON
Begin Lat/Lon 48.9/-102.39
End Date 2010-08-12 19:49:00.0 CST-6
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 0.00K
Crop Damage 0.00K
Episode Narrative A significant severe weather event evolved during the evening hours of Thursday, August 12th, and continued into the early morning hours of Friday, August 13th. Southwest flow aloft was in place across the Northern Plains region, ahead of an upper level trough over the Northern Rockies. A potent upper level impulse ejecting from the base of the trough provided the trigger for two areas of strong to severe convection. The first area was near a stationary boundary across southern North Dakota, where intense thunderstorm winds of 80 to near 100 mph were observed. The second area was ahead of a cold front over north central North Dakota, where an isolated tornadic supercell developed and spawned an EF3 tornado near Bowbells.
Well into this event, Severe Thunderstorm Watch number 605 was issued across southwest and south central North Dakota in anticipation of a Mesoscale Convective System over southwest North Dakota tracking eastward along the South Dakota border area. By the time of the watch issuance, the tornadic supercell over north central North Dakota had dissipated.
Multiple severe thunderstorm and tornado warnings were issued. Several reports of large hail, numerous reports of strong thunderstorm winds, and one confirmed EF3 tornado was received during this episode.
The EF3 tornado tragically claimed one fatality. An automobile traveling east on Highway 52 was picked up and carried several hundred yards before being thrown into a field. Another person in the car was injured. In addition, a farmstead sustained heavy damage from the tornado, with severe damage observed to the home and several outbuildings.
Event Narrative


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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 1 1 1.565M 650.00K
REEDER ADAMS CO. ND 08/12/2010 18:30 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
VERONA LA MOURE CO. ND 08/12/2010 19:14 CST-6 Funnel Cloud 0 0 0.00K 0.00K
REEDER ADAMS CO. ND 08/12/2010 19:28 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
BELFIELD STARK CO. ND 08/12/2010 19:34 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
FLAXTON BURKE CO. ND 08/12/2010 19:42 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
REEDER ADAMS CO. ND 08/12/2010 19:45 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
HETTINGER ADAMS CO. ND 08/12/2010 19:48 MST-7 Thunderstorm Wind 55 kts. MG 0 0 0.00K 0.00K
SOUTH HEART STARK CO. ND 08/12/2010 19:50 MST-7 Hail 2.50 in. 0 0 200.00K 200.00K
HETTINGER ADAMS CO. ND 08/12/2010 19:59 MST-7 Thunderstorm Wind 81 kts. MG 0 0 0.00K 0.00K
BOWBELLS BURKE CO. ND 08/12/2010 20:00 CST-6 Tornado EF0 0 0 0.00K 0.00K
BOWBELLS BURKE CO. ND 08/12/2010 20:03 CST-6 Tornado EF0 0 0 0.00K 0.00K
HETTINGER ADAMS CO. ND 08/12/2010 20:14 MST-7 Thunderstorm Wind 61 kts. MG 0 0 0.00K 0.00K
BOWBELLS BURKE CO. ND 08/12/2010 20:26 CST-6 Tornado EF3 0 0 700.00K 150.00K
BOWBELLS BURKE CO. ND 08/12/2010 20:31 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
MOTT HETTINGER CO. ND 08/12/2010 20:35 MST-7 Thunderstorm Wind 80 kts. EG 0 0 150.00K 200.00K
REGENT HETTINGER CO. ND 08/12/2010 20:35 MST-7 Thunderstorm Wind 70 kts. EG 0 0 0.00K 0.00K
NIOBE WARD CO. ND 08/12/2010 20:40 CST-6 Tornado EF3 1 1 500.00K 100.00K
SELFRIDGE SIOUX CO. ND 08/12/2010 21:23 MST-7 Thunderstorm Wind 61 kts. EG 0 0 0.00K 0.00K
TOLLEY RENVILLE CO. ND 08/12/2010 22:22 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
LINTON EMMONS CO. ND 08/12/2010 22:50 CST-6 Thunderstorm Wind 70 kts. EG 0 0 15.00K 0.00K
ST ANTHONY MORTON CO. ND 08/12/2010 23:18 CST-6 Thunderstorm Wind 63 kts. MG 0 0 0.00K 0.00K
Totals: 1 1 1.565M 650.00K