Thunderstorm Wind in Lewis and Clark County, Montana

Thunderstorm Wind September 7, 2022 · Lewis and Clark County, Montana

61 mph

Measured gust (53 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

ASOS station KHLN Helena Airport reported 53 knot wind gust.

The wider storm

Strong upper-level ridging persisted and was the dominated weather feature for several days. Record breaking high temperatures, near single digit RH, and strong winds gusts have led to a Red Flag Warning throughout the 4 days. Numerous fires sparked as a result of incapsulated erratic gusty winds associated with isolated dry thunderstorms. The breakdown of the upper-level ridge, onset of strong winds aloft, and the isolated dry thunderstorms was the trifecta that led to an extreme critical fire weather event.

Began near (hln)helena Rgnl Arp (46.6000, -111.9800).

Source: NOAA Storm Events Database, event 1051230. Narratives are written by the National Weather Service forecast office that issued the report.

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