Frost/Freeze — Kittitas Valley, Washington

2023-04-18 · Kittitas Valley, Washington

Event narrative

The ASOS KELN at Bowers Field Airport reported temperatures at to below freezing between 0353 to 0715 PDT on April 18th. The mesonet station DW9732 Ellensburg reported temperatures at to below freezing between 0145 to 0730 on April 18th.

Wider weather episode

An upper low pressure system taking on a negative tilt offshore the PacNW continued to advect a cooler airmass into the region, resulting in morning low temperatures dropping to below freezing.

Source: NOAA Storm Events Database, event_id 1095137. Narrative written by the NWS forecast office that issued the report.