Frost Advisory issued April 20 at 1:05PM PDT until April 22 at 9:00AM PDT by NWS Portland OR

* WHAT…Low temperatures ranging between 33 and 36 degrees will
result in frost formation.

* WHERE…Central and Southern Willamette Valley, Northern and
Central Coast Range Valleys and Mountains of Oregon, Foothills of
the Northern and Central Oregon Cascades, Lower Columbia River and
Cowlitz River Valleys, Tualatin Valley, Outer Southeast Portland
Metro, West Columbia River Gorge of Oregon above 500 ft, Upper
Hood River Valley, Willapa Hills, North Clark County Lowlands, and
South Washington Cascade Foothills.

* WHEN…From midnight Monday Night to 9 AM PDT Tuesday.

* IMPACTS…Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.