A Frost Advisory and a Freeze Watch are in effect for parts of northwest and west-central Oregon and southwest Washington from late Friday night through Saturday morning.
NWS Portland and NWS Seattle say temperatures could fall as low as 26 degrees in the Freeze Watch area near Chehalis.
Frost Advisory: NWS Portland
The advisory runs from midnight Friday night to 9 AM PDT Saturday. Temperatures of 36 degrees or lower will result in frost formation.
It covers 15 zones, including the Clatsop and Tillamook County Coasts, the Central Oregon Coast and Coast Range, the Lower Columbia River, the Inner and East Portland Metro, the Outer Southeast Portland Metro and the West Columbia River Gorge above 500 feet…