Washington County

Frost Advisory issued October 10 at 12:41AM PDT until October 11 at 9:00AM PDT by NWS Portland OR

* WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...In Oregon, Clackamas County Cascade Foothills, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Cascade Foothills of Marion and Linn Counties, Lane County Cascade Foothills, and Linn County Lowlands Counties. In Washington, North Clark County Lowlands and South Washington Cascade Foothills Counties. * WHEN...From midnight tonight to 9 AM PDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.