Cape Shoalwater WA to Cape Lookout OR between 150 and 250 NM Offshore Forecast
| Today...Nw Winds 15 To 20 Kt, Becoming W 15 To 25 Kt. Seas 16 To 18 Ft. Chance Of Rain. |
| Tonight...W Winds 15 To 25 Kt. Seas 14 To 18 Ft. |
| Sun...W Winds 10 To 20 Kt, Becoming W To Sw 5 To 15 Kt. Seas 14 To 17 Ft. |
| Sun Night...S Winds 10 To 20 Kt. Seas 12 To 16 Ft. |
| Mon...S To Se Winds 15 To 25 Kt. Seas 10 To 12 Ft. |
| Mon Night...S Winds 15 To 25 Kt. Seas 8 To 11 Ft. |
| Tue...S Winds 15 To 25 Kt, Becoming S To Se 25 To 35 Kt. Seas 8 To 14 Ft. |
| Tue Night...S To Se Winds 25 To 35 Kt. Seas 12 To 17 Ft. |
| Wed...S To Sw Winds 15 To 25 Kt, Becoming W To Sw 25 To 35 Kt. Seas 13 To 19 Ft. |
| Wed Night...W To Sw Winds 25 To 35 Kt, Becoming S To Sw 20 To 25 Kt. Seas 15 To 22 Ft. |
| Area Forecast Discussion National Weather Service Portland OR 602am PDT Sat Nov 1 2025 Synopsis A cold front moving through the are will continue to bring rain to the region with a transition to showers behind the front this afternoon. Southwest winds will increase with gusts 20-30 mph inland and 30-40 mph along the coast. Conditions trend drier into Sunday as transient ridging moves over the region. Active weather looks to return by the middle of next week. .SHORT TERM...Now through Saturday Night...Rain continues to stream in along southwesterly flow, slowly drifting southeast into the central and southern Willamette Valley. The cold front bring the rain has stalled as a secondary surface low, supported by a shortwave trough, develops offshore. The cold front will accelerate as the surface low tracks northeast towards Vancouver Island through the day. Light to moderate rain will continue drifting southeast with a better push expected between 8am and noon. The back edge of the cold front is expected to reach the northwest OR and southwest WA coasts early this afternoon. From there, rain will transition to showers across the area, lingering through Saturday night. The bulk of the precipitation has fallen north of a line from Florence to Albany to Mount Hood. The highest totals, as expected, are along the Coast and Coast where several reports of 1-2 inches have already fallen. Many inland locations are reporting 0.25-0.75 inches so far. Additional rainfall totals through early Sunday morning are expected to be 0.75-1.5 inches along the Coast and Coast Range, 0.25-0.5 inches through the Willamette Valley and I-5 corridor, and 1.0-2.0 inches in the Cascades and Cascade Foothills. Expecting gusty southerly winds as the cold front moves through the region. Inland gusts around 20 to 30 mph and up to 35 to 45 mph for the coast, Coast Range, Columbia River gorge, and Cascades. /19 Long Term Sunday through Thursday...The pattern trends dryer on Sunday as heigheights aloft rebound and weak ridging move into the region. However, this reprieve will be short lived as models show an active pattern returning as early as late Monday. Model ensemble guidance shows good agreement through midweek, indicating a broad trough settling over the Pacific Northwest by Wednesday. This trough will be associated with an atmospheric river, expected to persist around 48-60 hours in duration. A pair of strong upper level disturbances are expected to interact and send waves of moisture into the PacNW from Tuesday night through Friday morning. During this time frame, there are two distinct peaks in integrated vapor transport, one on Wednesday the 5th and another on Thursday the 6th, both peaking between 500-750 kg/ms for less than 24 hours. There is a 12-18 hour lull between these two stronger systems so not expecting any hydro issues. However, major chances in the timing or strength of the ARs may warrant adjustments. With prevailing southwesterly flow expected with this atmospheric river, orographic enhancement is expected to be modest, limiting heavy rain potential. While this system bears watching, current model guidance does not suggest rainfall rates high enough to raise flooding concerns for rivers or urban areas. Winds may increase again Wednesday and Thursday, with a 10-20% chance of gusts exceeding 45 mph, though probabilities can change as ensembles come into closer agreement on the eventual track and depth of the offshore low. Thursday and onward, ensemble spread increases notably, suggesting growing uncertainty in timing and strength of any subsequent systems. -19/12 Marine A cold front continues to move through the waters, supporting active countdowns. Gales are expected across the inner waters and the Columbia River Gorge through early afternoon as a coastal jet supports frequent gusts to 35-40 kt. Elsewhere, Hazardous Seas Warnings will be in effect for steep seas and wind gusts to around 30 kt. As these systems pass over the waters, a long period westerly swell 17-19 feet at 15-17 seconds will move into the waters through the day before dropping back into the mid to low teens this evening. While gales ease this afternoon, seas remain steep, supporting Hazardous Seas Warnings remaining in effect through 8pm PDT Saturday evening across all coastal waters. While brief high pressure passes overhead, winds will ease Sunday and into early next week, however seas may remain at or above 8-10 ft through much of the period. The middle of next week should see the return of an active pattern with possible strong Gales or even Storm force winds. Currently, 3 hr probabilities for Gales Tuesday into Wednesday is 30-50% and Wednesday into Thursday 30-60% while the probability for Storm force is around 10%. Looking at 24 hour wind gusts probabilities pushes the chance for Gales to greater than 80% and Storms to 20-50%. Seas are also expected to increase, with mainly wind driven seas pushing into the mid to upper teens by Wednesday. There is still plenty of uncertainty in exact details but the active pattern is expected to persist. -19/36 .BEACH HAZARDS...An increasing westerly swell of 16-20 ft at 16-17 seconds will bring a high threat of sneaker waves this weekend. Caution should be used when in or near the water. Always keep an eye on the waves, and be especially watchful of children and pets. Elevated swell heigheights may also bring a marginal high surf threat from 5am to 5pm Saturday. Destructive waves may wash over beaches, jetties, and other structures unexpectedly. People can be swept off rocks and jetties and drown while observing high surf. Higher than normal water run-up is expected on beaches and low-lying shoreline. Stay well back from the water's edge during this time, and be alert for exceptionally high waves. -10 NOAA Portland OR Office: Watches - Warnings - Advisories OR...High Surf Advisory until 5pm PDT this afternoon for ORZ101>103. WA...High Surf Advisory until 5pm PDT this afternoon for WAZ201. PZ...Gale Warning until 2pm PDT this afternoon for PZZ210-251>253. Hazardous Seas Warning from 2pm this afternoon to 8pm PDT this evening for PZZ210-251>253. Hazardous Seas Warning until 8pm PDT this evening for PZZ271>273. |
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