Excessive Heat — Yakima Valley, Washington

2022-08-18 · Yakima Valley, Washington

Event narrative

Calculated heat risk values at the Yakima GHCN site recorded temperatures that met or exceeded excessive heat warning criteria on Aug. 18th.

Wider weather episode

Upper level ridging and persistent surface high pressure in the Columbia Basin resulted in several areas reaching or exceeding critical heat risk thresholds during this period, with some mountain sites also seeing consecutive days of 95 degrees or greater temperatures.

Source: NOAA Storm Events Database, event_id 1053513. Narrative written by the NWS forecast office that issued the report.