Hail — Lemhi, Idaho

2013-08-01 · near Carmen, Lemhi, Idaho

Event narrative

A person from the public estimated ping pong size hail as she was rafting on the Salmon River about 100 yards north of the Salmon River I-93 bridge about one mile south of Carmen, Idaho. Their floating party was unable to reach the beach due to strong southerly winds and proceeded to be pelted by large hail for at least five minutes. She reported vivid black and blue bruises on her arms and legs. Her garden located in Carmen was damaged extensively by the hail.

Wider weather episode

A 40 to 50 knot mid-level southwest jet maximum combined with unstable conditions over Lemhi County helped initiate a large supercell thunderstorm that brought wind and hail. As the main upper low over Washington and Oregon pushed eastward, thunderstorms developed over Idaho County. One of these storms brought heavy rain that triggered flash flooding over the Sheep Fire Burn area.

View location on OpenStreetMap → (45.2310, -113.8950)

Source: NOAA Storm Events Database, event_id 472136. Narrative written by the NWS forecast office that issued the report.