Storm Events Database

Event Details

Event Thunderstorm Wind
Magnitude 50 kts.
State WYOMING
County/Area FREMONT
WFO RIW
Begin Date 07/21/2009 17:51:00 MST-7
Begin Range 0
Begin Azimuth N
Begin Location (RIW)RIVERTON RGNL A
Begin Lat/Lon 43.07/-108.45
End Date 07/21/2009 17:51:00 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 Strong to severe thunderstorms developed along outflow boundaries on either side of the Owl Creek Mountains. The storms produced wind gusts near 60 mph and hail up to penny size.
Event Narrative A microburst developed close to the Riverton Regional Airport ASOS and NWS Riverton office producing outflow wind measured at 58 mph.


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 07/21/2009 17:51 MST-7 Thunderstorm Wind 50 kts. MG 0 0 0.00K 0.00K
THERMOPOLIS HOT SPRINGS CO. WY 07/21/2009 17:55 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
Totals: 0 0 0.00K 0.00K