Debris Flow in Pend Oreille County, Washington

Debris Flow November 19, 2012 · Pend Oreille County, Washington

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

What the National Weather Service wrote

A rock slide blocked the north bound lane on State Route 31 at milepost 8. Short delays were reported as traffic in both directions alternated the use of the south bound lane.

The wider storm

A moist warm front brought valley rain and mountain snow across the region. The moist system at times resulted in moderate precipitation rates, which resulted in saturated soils across mid-slopes and heavy snowfall accumulations at elevations above 3500 feet. This storm system also produced a pair of funnel clouds on the northern Palouse.

Began near Metaline (48.8048, -117.4130).

Source: NOAA Storm Events Database, event 416978. Narratives are written by the National Weather Service forecast office that issued the report.

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