Thunderstorm Wind — Park, Montana

2020-07-07 · near Chico, Park, Montana

53 MG

Magnitude

Event narrative

A wind gust of 61 mph was recorded 12 miles southeast of Emigrant.

Wider weather episode

A very similar set-up was in place on the 7th as was the case on the 6th.

An upper low was situated over the Pacific Northwest. This resulted in a southwest flow aloft across the Billings Forecast Area. This pattern was quite favorable for the development of severe thunderstorms. A strong southeast, surface flow advected 50+ degree dewpoints from the central Plains northwestward across the entire Billings Forecast Area. In addition, a strong jet stream overhead provided plenty of speed shear over the area. This all resulted in a few supercell thunderstorms which then evolved into a squall line.

View location on OpenStreetMap → (45.2700, -110.5400)

Source: NOAA Storm Events Database, event_id 894316. Narrative written by the NWS forecast office that issued the report.