Special Weather Statement issued July 30 at 8:58PM MDT by NWS Riverton WY

Posted at 8:58 PM, Jul 30, 2019
and last updated 2019-07-30 22:58:00-04

At 858 PM MDT, Doppler radar was tracking a strong thunderstorm 8
miles southwest of Divide Lake, which is 10 miles north of West
Yellowstone, moving east at 30 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near…
Gallatin Lake around 915 PM MDT.
Grizzly Lake around 920 PM MDT.
Obsidian Cliff, Twin Lakes and Norris Junction around 925 PM MDT.
Grebe Lake, Cascade Lake, Virginia Cascade and Osprey Falls around
930 PM MDT.

Other locations impacted by this storm include Roosevelt Lodge and
Indian Creek Campground.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.