Frost/Freeze — Wallowa County, Oregon

2024-09-30 · Wallowa County, Oregon

Event narrative

The Joseph, OR AWOS reported freezing and sub-freezing temperatures around 1:30 am and 7:30 am. Similar readings were found at co-op stations CW1102 in Wallowa and EW8320 in Lostine.

Wider weather episode

Cold air flowing in from behind a departing trough made for freezing temperatures overnight into the morning of September 30 across the Wallowa Valley. the Grande Ronde Valley, and central Oregon.

Source: NOAA Storm Events Database, event_id 1217558. Narrative written by the NWS forecast office that issued the report.