The Oregonian/OregonLive

Don't Edit

Forecasters are tracking a strong low pressure off the British Columbia coast that is

pushing a cold front slowly eastward across the Pacific Northwest on Thursday morning.

This is the system that's sending large surf toward the beaches that will combine with high tides for coastal flooding in low areas. The National Weather Service says vulnerable locations include Willapa Bay, Seaside, Nehalem, Tillamook and Florence.

Don't Edit

NOAA

Residents and visitors are advised to stay off the beaches. Sea water can rush up much further than normal during these conditions which can trap beachgoers with no escape route. Waves will also bring up hazardous debris including large beach logs.



Even traffic can be affected as structures and roads close to beach level can get inundated by waves and damaged. Beach erosion is possible. Basically, stay away from the beaches on Thursday.

Don't Edit

Wow, Buoy 89 which is around 85 miles west of the Columbia River Bar, just reported 37 feet seas at 17 seconds. Expect 35 foot seas near the coast around 3 AM this morning. #orwx #surf #largewaves — NWS Portland (@NWSPortland) January 18, 2018

Don't Edit

Forecasters with the National Weather Service report offshore buoys have recorded “swell heights between 34 and 37 feet” with a dominant wave period of 17 seconds early Thursday morning. Swells will slowly subside during the day, but remain above 25 feet through Thursday afternoon. The current swell is forecast to produce 35-45 foot breaking waves along the beaches through Thursday night.

Don't Edit

Don't Edit

The Oregonian/OregonLive

In Portland on Thursday there will be rain, and plenty of it. Freezing levels are lowing to below the Cascade passes and will remain below through the weekend. The cool onshore flow and showers coupled with sun breaks on Thursday bring the possibility of some thunderstorms. Those storms could include small hail. Thursday just could be a wild weather day all around. High temps of 51 for Portland.

Friday will bring more showers and a high of 48. This pattern should continue through the weekend as showers and breaks with highs in the upper 40s dominate. Forecasters see the possibility of a break in the shower activity for Saturday afternoon, but by evening, rain should return and continue into Sunday.

Don't Edit