A special weather statement for Helena, MT has been issued for wind, hail and very gusty winds.

High Wind Advisory

According to the National Weather Service:

Significant weather advisory for central Lewis And Clark County
until 215 PM MDT... 

At 125 PM MDT... Doppler radar was tracking a strong thunderstorm 12
miles southwest of Augusta... moving slowly to the northeast at
10 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm. This storm will also produce a period of heavy
rain... with rainfall amounts up to 0.50 inches possible.

Locations impacted include... 
Augusta... Nilan Reservoir and Bean Lake.