High Wind in Hill County, Montana

In addition to the KHVR ASOS, multiple other mesonets measures gusts of or in excess of 58 mph, including a peak gust of 67 mph 20 miles north of Rudyard at EW1937 Goldstone. Other sensors reaching 58 mph or greater include mesonet GW4079 Inverness 10 south, mesonet station DVI02964 Havre 6 miles ENE of Kremlin, mesonet station FW1664 Hingham 16 miles NNE of Rudyard, EW1931 12 miles south of Rudyard, and mesonet station GW3530 11 miles south of Rudyard.

A robust shortwave shifting eastward from the Pacific Northwest eclipsed the Northern Rockies during the day October 4. At the surface, a surface trough slowly increased in magnitude through the day before ejecting eastward as a surface low late afternoon. As the surface low pulled away, a strong cold front (Aided by 50-70kt winds within the first few thousand feet of the surface) swept across the region. Mechanical mixing allowed for multiple 70+ mph gusts to be realized at the surface, even with the front passing after sunset for most locations.