Storm Events Database

Event Details

Event Hail
Magnitude 1.12 in.
State WYOMING
County/Area FREMONT
WFO RIW
Report Source NWS Employee
NCDC Data Source CSV
Begin Date 2009-08-15 17:59:00.0 MST-7
Begin Location 2WSW RIVERTON
Begin Lat/Lon 43.02/-108.42
End Date 2009-08-15 18:09:00.0 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 Hail of penny to quarter size, with some slightly larger than one inch in diameter, fell for about 10 minutes at a residence near Riverton.


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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