Portland, OR Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Portland.

Use the Radar Maps link provided to understand the trajectory of a storm.

Frost Advisory issued October 23 at 7:55AM PDT until October 24 at 8:00AM PDT by NWS Portland OR

* WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...In Oregon, North Oregon Coast Range and North Oregon Coast Range Lowlands. In Washington, South Washington Cascade Foothills. * WHEN...From midnight tonight to 8 AM PDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...The Frost Advisory that was in effect for October 23rd has expired due to warming temperatures. Some valley locations may continue to see localized frost on exposed surfaces.

Freeze Warning issued October 23 at 7:55AM PDT until October 24 at 8:00AM PDT by NWS Portland OR

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Upper Hood River Valley. * WHEN...From midnight tonight to 8 AM PDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...The Frost Advisory that was in effect for October 23rd has expired due to warming temperatures. Some valley locations may continue to see localized frost on exposed surfaces.

Frost Advisory issued October 23 at 7:55AM PDT until October 24 at 8:00AM PDT by NWS Portland OR

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Central and Southern Willamette Valley, Foothills of the Northern and Central Oregon Cascades, Central Oregon Coast Range Lowlands, Central Oregon Coast Range, Tualatin Valley, Willapa Hills, Cowlitz County Lowlands, and North Clark County Lowlands. * WHEN...From midnight tonight to 8 AM PDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Freeze Warning issued October 23 at 2:51AM PDT until October 24 at 10:00AM PDT by NWS Medford OR

* WHAT...Low temperatures between 26 and 32 degrees expected. * WHERE...In California, Central, South Central and Western Siskiyou County. In Oregon, Eastern Curry County and Josephine County and Jackson County. This includes Happy Camp, Seiad Valley, Fort Jones, Etna, Yreka, Weed, Mount Shasta City, McCloud, Cave Junction, Grans Pass, Shady Cove, Eagle Point, Medford and Ashland. * WHEN...From 2 AM to 10 AM PDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Freeze Warning issued October 23 at 2:51AM PDT until October 24 at 10:00AM PDT by NWS Medford OR

* WHAT...Low temperatures between 30 and 32 degrees expected. * WHERE...Central Douglas County including Glendale and Azalea. * WHEN...From 2 AM to 10 AM PDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Freeze Watch issued October 23 at 1:39AM PDT until October 24 at 9:00AM PDT by NWS Pendleton OR

* WHAT...Sub-freezing temperatures as low as 29 possible. * WHERE...Foothills of the Blue Mountains of Oregon, North Central Oregon, and Yakima Valley. * WHEN...From this evening through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.