Storm Events Database

Event Details

Event Thunderstorm Wind
Magnitude 56 kts.
State MONTANA
County/Area SWEET GRASS
WFO BYZ
Report Source COOP Observer
NCDC Data Source CSV
Begin Date 2011-08-21 15:52:00.0 MST-7
Begin Location 22E MELVILLE
Begin Lat/Lon 46.04/-109.49
End Date 2011-08-21 15:52:00.0 MST-7
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 An unstable atmosphere resulted in severe thunderstorm winds over a three day period. Low levels were dry which resulted in predominately dry thunderstorms producing severe wind gusts.
Event Narrative An estimated wind gust of 65 mph was reported 12 miles WNW of Rapelje.


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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 0.00K 0.00K
MELVILLE SWEET GRASS CO. MT 08/21/2011 15:52 MST-7 Thunderstorm Wind 56 kts. EG 0 0 0.00K 0.00K
ELSO MUSSELSHELL CO. MT 08/21/2011 16:45 MST-7 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
COMANCHE YELLOWSTONE CO. MT 08/21/2011 17:00 MST-7 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
LAUREL YELLOWSTONE CO. MT 08/22/2011 21:20 MST-7 Thunderstorm Wind 61 kts. EG 0 0 0.00K 0.00K
(BIL)LOGAN ARPT BILL YELLOWSTONE CO. MT 08/24/2011 18:22 MST-7 Thunderstorm Wind 53 kts. MG 0 0 0.00K 0.00K
Totals: 0 0 0.00K 0.00K