High Wind — Eastern Glacier, Western Toole, and Central Pondera, Montana

2024-10-27 · Eastern Glacier, Western Toole, and Central Pondera, Montana

Event narrative

ASOS station KCTB measured multiple gusts in excess of 58 mph, including a peak gust of 64 mph. The ASOS also measured sustained winds, averaged over an hour, of 42 mph between 1230 and 130 PM MDT. Additionally, mesonet sensors MTSWT Sweet Grass (MT DOT) and MTM05 ARC-WTri Conrad also measured gusts of 58 mph or greater.

Wider weather episode

A longwave trough and attendant closed upper low diving southeastward from the Gulf of Alaska brought increasing zonal mid level flow across the Northern Rockies. An approaching shortwave within the broader trough as well as cold air advection allowed for strong winds and gusts to translate to the surface during the day October 27.

Source: NOAA Storm Events Database, event_id 1216015. Narrative written by the NWS forecast office that issued the report.