Cape Shoalwater WA to Cape Lookout OR between 150 and 250 NM Offshore Forecast
| Tonight...N To Nw Winds 20 To 30 Kt. Seas 10 To 13 Ft. |
| Sun...Nw Winds 20 To 25 Kt. Seas 10 To 12 Ft. Scattered Showers. |
| Sun Night...N To Nw Winds 20 To 30 Kt. Seas 10 To 13 Ft. Scattered Showers. |
| Mon...N Winds 20 To 30 Kt. Seas 9 To 13 Ft. |
| Mon Night...N Winds 20 To 30 Kt. Seas 7 To 11 Ft. |
| Tue...N Winds 10 To 20 Kt, Becoming 10 To 15 Kt. Seas 6 To 9 Ft. |
| Tue Night...N Winds 10 To 15 Kt. Seas 5 To 7 Ft. |
| Wed...N Winds 10 To 20 Kt, Becoming N To Nw 10 To 15 Kt. Seas 5 To 7 Ft. |
| Wed Night...Nw Winds 10 To 15 Kt. Seas 6 To 7 Ft. |
| Thu...Nw Winds 10 To 15 Kt, Becoming W. Seas 6 To 7 Ft. |
| Thu Night...Nw Winds 10 To 15 Kt, Becoming 10 To 20 Kt. Seas 6 To 8 Ft. |
| Area Forecast Discussion National Weather Service Portland OR 234pm PDT Sat Oct 11 2025 Synopsis A series of broad upper-level troughs will continue to drive cool and unsettled weather across the Pacific Northwest through Monday. Expect periodic rain, mountain snow, and below-normal temperatures. Conditions gradually moderate midweek as a ridge builds over the region, though model uncertainty grows toward late week. Tonight through Friday...Current IR and Water Vapor satellite imagery shows a broad, upper level low east of the Cascades this afternoon. Radar also shows light showers slowly moving eastward across the CWA. As this low continues to shift eastward, a second trough can also be seen drifting down from Western Canada and this low will keep widespread rain in the forecast through the remainder of the weekend and into the start of the upcoming week. Cold air from the first low, combined with the precipitation from the second low will also result in accumulating snow along the Cascades through Monday morning. Therefore, have issued a Winter Weather Advisory for elevations above 4000 ft as there is an 80% chance of total snow accumulations of 2 to 6 inches of wet snow for areas near Santiam, Bennett and Willamette Passes. Highway 26 near Government Camp has an 80% chance of a trace to 3 inches of wet snow. For elevations above 5000 ft, there is an 80% chance that snow accumulations will end up between of 4 to 15 inches. Overall, there is a 50% chance of at least 12 inches of snow, primarily for locations north of The Three Sisters and this scenario could result in vehicles becoming stranded along unmaintained roads. Sunday, we continue to transition to more showery/convective pattern and that is resulting in a 15% chance for thunderstorms through much of Sunday, primarily along the coast but still possible inland. Colder air aloft, will also bring about cooler daytime and overnight temperatures. Sunday and Monday expect daytime highs in the mid 50s to low 60s for inland and coastal locations. Colder air aloft, is also bringing about a slight increase in instability. The Cascades will have daytime highs in the upper 30s to upper 40s. Sunday night into Monday could see at or near-freezing overnight lows for the Cascade Foothills eastward. This includes the Hood River. Monday night into Tuesday will also have at or near- freezing overnight lows. Either of these two night could result in a Freeze Warning being issued, but given the high uncertainty for overnight cloud cover, will hold off on any hazards at this time. Tuesday into Wednesday, a models have a broad, upper level ridge developing which will result in a warming and drying trend. Daytime highs will warm into mid 50s to upper 60s. Towards the end of the upcoming week, uncertainty increases as several ensemble members rebuild an offshore low and push it back toward the coast. If this scenario develops, another round of cool and moist conditions would bring increasing cloud cover as well as another round of precipitation. However, confidence in this late week pattern remains low. /42 Marine A weak low pressure system shifting inland will result in northwesterly winds building across the waters this afternoon. There is a 25% chance that gusts briefly peak around 35 kt beyond 40 NM across the northern waters, but given the brevity and low confidence of occurrence will keep Small Craft Advisory in place. There is an 80% chance that seas build into the 9-14 ft range across the waters this evening into early Sunday. The highest seas will be across the northern outer waters while the lowest seas will be across the southern inner waters off the central coast of Oregon. A weak low pressure will then drop southward across the waters late Sunday into early Monday. This will usher in a reinforcing shot of gusty north to northeasterly winds during this period. Seas will remain elevated as a result. High pressure then looks to build back across the northeastern Pacific during the middle of next week. This looks to allow seas to drop down to around 5 ft. There remains quite a bit of uncertainty surrounding the weather pattern next week. There is an 80% chance that significant wave heigheights will climb and end up somewhere between 6 and 13 ft by next Friday or Saturday. NOAA Portland OR Office: Watches - Warnings - Advisories OR...Winter Weather Advisory from 8am Sunday to 11am PDT Monday for ORZ126>128. WA...Winter Weather Advisory from 8am Sunday to 11am PDT Monday for WAZ211. PZ...Small Craft Advisory from 5pm this afternoon to 9pm PDT Sunday for PZZ210. Small Craft Advisory until 9pm PDT Sunday for PZZ251>253-272- 273. Small Craft Advisory until 5pm PDT this afternoon for PZZ271. Hazardous Seas Warning from 5pm this afternoon to 5pm PDT Sunday for PZZ271. |
Portland OR Radar
Northwest Radar