Storm Events Database

Event Details

Event Hail
Magnitude 0.88 in.
State WYOMING
County/Area FREMONT
WFO RIW
Report Source NWS Employee
NCDC Data Source CSV
Begin Date 2009-08-15 18:04:00.0 MST-7
Begin Location 0NW RIVERTON
Begin Lat/Lon 43.03/-108.39
End Date 2009-08-15 18:15:00.0 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 Colder air aloft filtered into Wyoming behind an upper level low near the Montana-Canada border. This cold air coupled with afternoon surface heating helped to generate a severe thunderstorm over the central Wind River Basin.
Event Narrative Hailstones of penny to nickel size fell on the city of Riverton for a little more than 10 minutes.


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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
(RIW)RIVERTON RGNL A FREMONT CO. WY 08/15/2009 17:58 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
RIVERTON FREMONT CO. WY 08/15/2009 17:59 MST-7 Hail 1.12 in. 0 0 0.00K 0.00K
RIVERTON FREMONT CO. WY 08/15/2009 18:04 MST-7 Hail 0.88 in. 0 0 0.00K 0.00K
Totals: 0 0 0.00K 0.00K