Thunderstorm Wind — Glacier, Montana

2021-07-11 · near (ctb)cutbank Muni Ar, Glacier, Montana

Event narrative

KCTB measured a 55 kt (63 mph) thunderstorm wind gust.

Wider weather episode

A shortwave moving along the Canadian border interacted with moisture and instability over North-central MT for strong to severe thunderstorm development. Surface based CAPE was generally less than 500 j/kg, but effective shear above 30 kts and DCAPE as high as 2000 j/kg was enough to produce scattered areas of severe wind gusts.

View location on OpenStreetMap → (48.6000, -112.3700)

Source: NOAA Storm Events Database, event_id 969845. Narrative written by the NWS forecast office that issued the report.