Frost/Freeze — Yakima Valley, Washington

2023-04-17 · Yakima Valley, Washington

Event narrative

The mesonet site KF7MKL Union Gap measured temperatures at or below freezing between 0415 to 0745 PDT on April 17th. The mesonet station KK7GO-7 Yakima measured temperatures at to below freezing between 0500 to 0745 PDT 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 1095132. Narrative written by the NWS forecast office that issued the report.