Thunderstorm Wind — Lemhi, Idaho

2017-06-26 · near Carmen, Lemhi, Idaho

$10K

Property damage

59 MG

Magnitude

Event narrative

Road crews, the public, and the county emergency manager all had reports of damage from the strong winds during the late evening. Power companies reported outages to approximately 600 customers due to trees on power lines. A storm spotter in the area reported losing a few shingles, while another resident lost a stove pipe off the roof on the west side of Salmon, ID. Road crews reported downed Cottonwood trees on US-93.

Wider weather episode

A strong shortwave in westerly flow enhanced thunderstorms over the Northern Rockies. Intense heating lead to near-record surface temperatures, which provided modest instability and a dry near-surface layer for downdrafts to accelerate within. Gusty winds were widely observed with storm outflows, with a few severe gusts recorded. Many strong gusts happened around or after sunset.

View location on OpenStreetMap → (45.2025, -113.8966)

Source: NOAA Storm Events Database, event_id 700655. Narrative written by the NWS forecast office that issued the report.