Hail — Asotin, Washington

2013-09-03 · near Grouse, Asotin, Washington

Wider weather episode

Post frontal thunderstorms developed across the Northeast Blue Mountains during the late afternoon hours. Just enough sunshine in the afternoon destabilized the atmosphere to create surface based convective available potential energy of 500 to 1,000 J/KG. This was just enough energy in a marginally sheared environment for a supercell thunderstorm that produced severe hail.

View location on OpenStreetMap → (46.0100, -117.4800)

Source: NOAA Storm Events Database, event_id 474813. Narrative written by the NWS forecast office that issued the report.