TornadoLookup

Home / Idaho / Lemhi

Heavy Rain in Lemhi County, Idaho

Heavy Rain September 5, 2013 · Lemhi County, Idaho

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

What the National Weather Service wrote

The Kriley Creek RAWS, located at 5,200 ft MSL, reported 0.52 of rain in one hour. Radar data reveals that the rain could have fallen much quicker in approximately 30 minutes or less.

The wider storm

Strong rising air associated with the nose of a 50 knot mid-level south-southwest jet combined with near record high moisture levels and an unstable atmosphere triggered wet multicellular thunderstorms over Lemhi County by late afternoon on September 5th. Flash flooding and power outages were the main impacts. To get an understanding how moist the air mass associated with this southwest surge was, the Boise weather balloon sounding recorded the 2nd highest moisture level (precipitable water values) on record on the evening of the 5th.

Began near North Fork (45.3560, -113.8950).

Source: NOAA Storm Events Database, event 474053. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.