Cape Shoalwater WA to Cape Lookout OR between 60 and 150 NM Offshore Forecast
| Today...N To Nw Winds 20 To 30 Kt. Seas 9 To 11 Ft. |
| Tonight...Nw Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt. Seas 7 To 9 Ft. |
| Sun...Nw Winds 10 To 15 Kt, Becoming 10 To 20 Kt. Seas 7 To 8 Ft. |
| Sun Night...Nw Winds 15 To 20 Kt. Seas 7 To 8 Ft. |
| Mon...Nw Winds 10 To 20 Kt, Becoming 10 To 15 Kt. Seas 7 To 8 Ft. |
| Mon Night...N To Nw Winds 15 To 20 Kt. Seas 6 To 7 Ft. |
| Tue...N Winds 15 To 20 Kt. Seas 6 To 7 Ft. |
| Tue Night...N Winds 15 To 20 Kt. Seas 6 To 7 Ft. |
| Wed...N Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt. Seas 6 To 7 Ft. |
| Wed Night...N Winds 15 To 20 Kt. Seas 5 To 6 Ft. |
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Area Forecast Discussion National Weather Service Portland OR 257am PDT Sat April 19 2025 Synopsis A series of disturbances will bring closer to average temperatures for the weekend and into early next week along with a chance for light showers. Now through Friday...A very weak shortwave trough in the process of moving through the area right now, bringing a switch to weak onshore northwesterly flow throughout Saturday. Gusts generally below 10-12 kts throughout the upcoming weekend, with the exception of The eastern Gorge (Hood River County and eastward), which could see slightly stronger wind gusts up to 20-25 kts. No precipitation expected Saturday, as the system is just too weak, and the surface layer too dry for any precipitation to really reach the surface. Temperatures generally in the mid 60s in the Willamette Valley and SW Washington lowlands, closer to the low/mid 50s at the coast. With a moister airmass incoming, afternoon RH values on Saturday around 40 percent. Sunday through Tuesday, a few weak disturbances pass through the area, with little/no accumulating rainfall expected for most of them. Sunday sees the best chance; between 5am Sunday to 5am Monday, around 0.05-0.15 inches of rainfall possible north of Salem only. For areas further south, just dry conditions expected Sunday. The remainder of the upcoming week sees only a 20-50% chance of any accumulating rainfall. Winds in Hood River County remain somewhat elevated through Monday as onshore flow continues, with gusts up to 20 kts at times. Everywhere else, fairly benign onshore flow under 10 kt gusts during this time. Daytime high temperatures in the begin in the lower 60s Sunday and Monday but gradually increase through the middle of the week toward the low 70s. No frost/freeze/fog concerns during this period. WPC Cluster guidance shows around a 60% chance of a slightly more impactful trough moving in next Thursday. There remains plenty of uncertainty in exact intensity and impacts with this late week system. /JLiu Marine Strong high pressure offshore will maintain northerly winds across the coastal waters through the weekend. A weak surface front is moving across the waters this morning. Northerly winds with gusts 20-25 kts will peak this morning with gusts up to 25-30 kt. Additionally, will build to 8 to 10 ft at 10 seconds this morning, continuing through the evening. Will maintain the Small Craft Advisory through Saturday evening. Winds decrease tonight with gusts below 20 kts as do waves to 5 to 8 ft at 10 to 11 seconds. Another weak front moves across the waters on Sunday night. Northerly winds increase slightly with occasional gusts 20-25 kts, though not widespread enough to consider a Small Craft Advisory at this time. Waves will also increase slightly to 8 to 10 feet at 10 seconds Sunday night and early Monday morning. By late Monday, the thermal trough strengthens over the southern Oregon coast, increasing the northerly pressure gradients again for early next week. Northerly winds off the central Oregon coast could increase to gusts of 20-25 kts. Seas are expected to persist around 6 to 7 ft at 10-13 seconds. -DH/HEC NOAA Portland OR Office: Watches - Warnings - Advisories OR...None. WA...None. PZ...Small Craft Advisory until 11pm PDT this evening for PZZ251>253- 271>273. |
Portland OR Radar
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