Frost/Freeze — Lower Columbia Basin, Washington

2024-10-30 · Lower Columbia Basin, Washington

Event narrative

Both the Pasco and Richland ASOSs reported sub-freezing temps between 3am and 8am the morning of the 30th.

Wider weather episode

Northerly flow aloft followed by high pressure allowed for freezing temperatures to settle in over the lowest elevations of the forecast area the night of October 29 into the morning of the 30th.

Source: NOAA Storm Events Database, event_id 1220938. Narrative written by the NWS forecast office that issued the report.