High Wind in Eastern Pondera, Montana

High Wind November 5, 2020 · Eastern Pondera, Montana

72 mph

Measured gust (63 kt)

What the National Weather Service wrote

Mesonet station at 7 NNE Valier measured a 63 kt (72 mph) non-thunderstorm wind gust.

The wider storm

Westerly flow aloft began to increase ahead of a broad trough over the Pacific Northwest. H700 winds of 60 to 80 kts were common and a stable layer near the mountain top level created favorable conditions for breaking mountain waves. At the surface, a couple of lee side troughs moved through the Canadian prairies, which provided a tight pressure gradient over the region.

Source: NOAA Storm Events Database, event 923489. Narratives are written by the National Weather Service forecast office that issued the report.

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