Flash Flood in Flathead County, Montana

Flash Flood June 15, 2022 – June 17, 2022 · Flathead County, Montana

$500K

Damage as recorded

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

What the National Weather Service wrote

Several areas of flooding and debris flows occurred, mainly on June 15. Trumbull Creek west of Columbia Falls, flooded a dozen homes near Highway 2 with water on to the highway. Flooding also occurred on North Hilltop Road along Garnier Creek and Blankenship Road near Columbia Falls with water running across Highway 2 from nearby hillsides. Debris flows occurred on the west side of Hungry Horse Reservoir forcing the closure of West Side Road in the Graves Creek area.

The wider storm

Periods of convective and upslope precipitation brought areal and river flooding June 11 through June 16. Rainfall of 2 to 6 inches was common for the lower elevations of Northwest Montana between June 11 and June 15. Mountain locations received up to 10 inches of moisture over the same period. River flooding continued well into late June for the Flathead River.

Began near Half Moon (48.3602, -114.2384).

Source: NOAA Storm Events Database, event 1027773. Narratives are written by the National Weather Service forecast office that issued the report.

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