Frost/Freeze — Kittitas Valley, Washington

2023-04-17 · Kittitas Valley, Washington

Event narrative

The ASOS KELN at the Bowers Field Airport reported temperatures at or below freezing between 0430 to 0752 PDT on April 17th. The Washington DOT station TRYEG at Ryegrass reported temperatures at or below freezing between 0107 to 0752 on April 17th.

Wider weather episode

Cold air advection behind a cold front passage the previous day, in combination with clearing skies overnight led to temperatures in the Kittitas and Yakima valleys dropping to below freezing in the morning.

Source: NOAA Storm Events Database, event_id 1095129. Narrative written by the NWS forecast office that issued the report.