Cape Blanco OR to Point St. George CA from 10 to 60 NM Marine Forecast
| Rest Of Tonight...S Wind 10 To 15 Kt. Seas 11 To 13 Ft, Subsiding To 10 To 11 Ft. Wave Detail: S 4 Ft At 6 Seconds And W 11 Ft At 13 Seconds. A Chance Of Rain. |
| Tue...S Wind Around 15 Kt, Rising To Around 20 Kt With Gusts Up To 25 Kt In The Afternoon. Seas 9 To 11 Ft. Wave Detail: S 5 Ft At 5 Seconds And W 11 Ft At 12 Seconds. Rain. |
| Tue Night...Sw Wind 20 To 25 Kt, Veering To W After Midnight. Seas 10 To 14 Ft, Building To 12 To 15 Ft After Midnight. Wave Detail: W 8 Ft At 7 Seconds And W 13 Ft At 12 Seconds. Rain. |
| Wed...Nw Wind 10 To 15 Kt, Becoming Sw 5 To 10 Kt In The Afternoon. Seas 12 To 15 Ft, Subsiding To 12 To 13 Ft In The Afternoon. Wave Detail: W 7 Ft At 7 Seconds And W 13 Ft At 11 Seconds. Rain Likely. |
| Wed Night...S Wind 15 To 20 Kt With Gusts Up To 25 Kt, Rising To 25 To 30 Kt With Gusts Up To 40 Kt After Midnight. Seas 11 To 12 Ft, Building To 11 To 14 Ft After Midnight. Wave Detail: Sw 11 Ft At 7 Seconds And W 11 Ft At 11 Seconds. Rain. |
| Thu...S Wind Around 30 Kt With Gusts Up To 40 Kt. Seas 12 To 16 Ft, Building To 14 To 17 Ft In The Afternoon. Wave Detail: Sw 13 Ft At 8 Seconds And Nw 10 Ft At 11 Seconds. Rain. |
| Thu Night...Sw Wind 25 To 30 Kt With Gusts Up To 40 Kt. Seas 13 To 17 Ft. Wave Detail: Sw 13 Ft At 8 Seconds And W 10 Ft At 10 Seconds. Rain. |
| Fri...W Wind 15 To 20 Kt, Veering To Nw In The Afternoon. Seas 12 To 14 Ft, Subsiding To 10 To 13 Ft In The Afternoon. Wave Detail: Sw 10 Ft At 7 Seconds, W 9 Ft At 11 Seconds And Nw 7 Ft At 13 Seconds. Rain. |
| Fri Night...Nw Wind 10 To 15 Kt. Seas 8 To 11 Ft. Wave Detail: Nw 4 Ft At 5 Seconds, Sw 8 Ft At 10 Seconds And Nw 7 Ft At 12 Seconds. Rain Likely, Mainly In The Evening. |
| Sat...Sw Wind 10 To 15 Kt. Seas 7 To 9 Ft. Wave Detail: W 3 Ft At 4 Seconds, Sw 5 Ft At 10 Seconds And Nw 7 Ft At 12 Seconds. A Chance Of Rain In The Morning, Then Rain Likely In The Afternoon. |
| Sat Night...S Wind 10 To 15 Kt. Seas 7 To 9 Ft. Rain Likely. |
| Area Forecast Discussion National Weather Service Medford OR 1003pm PST Monday Dec 15 2025 ...Updated the Aviation and Marine Sections... Marine Updated 900pm PST Monday, December 15, 2025...Conditions remain hazardous to small craft overnight into Tuesday with steep mostly west swell dominated seas. The next front is expected late day Tuesday, bringing another round of southerly gales that quickly switch to the northwest, and remain strong, late Tuesday night. This will build seas again, becoming very steep and hazardous Tuesday night across all waters, with gales expected north of Cape Blanco. Winds ease late Wednesday morning, but seas will remain steep through Wednesday night. Another, more persistent front will take aim at the coast late Wednesday night/early Thursday morning, bringing a longer duration of strong winds. Strong gales are likely with this system, with a 20-40% chance of storm force (>55kt) gusts possible north of Cape Blanco on Thursday morning. Winds will gradually ease from north to south late Thursday night into Friday morning, but seas are likely to remain steep to very steep through Friday. Moderate to heavy rain will accompany each front this week. /BR-y/Spilde /Issued 219pm PST Monday Dec 15 2025/ The first in a series of fronts is moving into the area bringing rain to the coast and coastal mountains and gusty winds. Strongest north of Cape Blanco. Precipitation will spread farther inland, with winds increasing east of the Cascades. The bulk of the precipitation will be along the coast, coastal mountains and Cascades. Satellite image and radar are showing moderate to occasionally heavy precipitation with a few lightning strikes which is partially being aided by an upper level jet moving towards southwest Oregon. Isolated thunderstorms should remain confined to the south Oregon coast and inland in Curry and western Josephine County into early this evening. Most of the Rogue Valley could end up dry during the day Monday with not much more than occasional showers late this afternoon and early evening due to the non-favorable southwest flow. East of the Cascades will likely get little to rainfall, but it will be windy into early this evening. More fronts will follow the rest of the week into next weekend bringing more rain, moderate to strong winds and higher elevation mountains snow. Detail's on the timing mentioned below could vary with each individual storm, so be on the lookout for updates to the forecast in the days to come. A second and stronger system will arrive Tuesday night into Wednesday brining moderate to heavy rain to the coast, coastal mountains and Cascades. Moderate to occasionally strong winds are possible at the coast. Not all of the ingredients are there for a winds to reach high wind warning criteria at the coast, but they do for east of the Cascades, especially near and at the ridges. guidance shows 700 mb winds between 60-70 kts Tuesday night through Wednesday morning, then decreasing some Wednesday afternoon. Given the above, the High Wind Watch has been upgraded to a High Wind Warning for the higher terrain in Lake, Modoc and potions of Klamth County. At the same time a Wind advisory has been issued to cover the remainder of Lake, Modoc and to include more of Klamath County. Please see NPWMFR for more details. Snow levels will be between 7000-8000 feet Tuesday, then lowering between 4500-5500 feet Wednesday. Therefore we'll see rain change over to snow late Tuesday night into Wednesday morning with 3-5 inches possible up towards Willamette Pass, and 2-4 inches around Diamond and Crater Lake by late Wednesday morning. Precipitation will gradually diminish later Wednesday morning through the afternoon and we'll catch a relative break in the action from Wednesday afternoon into most of Wednesday night. A stronger storm will arrive Thursday and last through Thursday night bringing another round of moderate to heavy precipitation and strong winds. Strong winds will be a concern Thursday, especially east of the Cascades where some of the guidance shows 700 mb winds between 70-80 kts over a large chunk of real estate east of the Cascades. It's also worth noting, strong winds east of the Cascades could be of longer duration (12-18 hours). Although not as high of a concern, moderate to strong winds will be a concern in the Shasta Valley. However the wind direction in the Shasta Valley has a westerly component which could put a cap on the magnitude of the winds. Guidance shows the Medford to Redding gradient between 8-9 mb. So it's something we'll have to keep a close watch on. The coast is another story. Current gradients between Arcata and North Bend peak out at almost 10 mb Thursday afternoon and night which is significant enough for high winds, and guidance shows an enhanced area of strong winds close to 70 kts Thursday afternoon from about Cape Blanco north. Thre's good agreement the storm that arrives Thursday will have an atmospheric river (AR) component, with a long fetch of moisture extending southwest towards 160W, with the source region coming from the tropics. Additionally, there is favorable upslope flow along the coastal mountains and Cascades. The net result could be a prolonged period (24-36 hours) of heavy precipitation for these areas along with moderate to occasionally heavy rainfall elsewhere. Given the lack of rain the last few weeks, rivers are pretty low, but they will come up over time and we could be looking at potential flooding on the Coquille towards the end of the week. Another factor that could put a cap on the flooding concerns is little to no snowpack. Therefore there will be no additional contribution from snowmelt going into the rivers. Another item worth noting is there are some indications the core of heavier precipitation could shift north of the Umpqua Divide for a brief period of time Thursday afternoon into Thursday night before shifting south over southern Oregon and Northern California Friday. Keep in mind the details could change, so keep a eye out for updates in the days to follow. Looking into next week leading up to Christmas Holiday, there's strong evidence that's being supported by the ECMWF, GEFS ensemble means and clusters, we'll be heading into a colder and wet pattern with storms originating from the Gulf of Alaska as we get towards the following weekend through at least Christmas Day. These typically result in colder temperatures, and precipitation with lower snow levels. The pattern shows below normal 500 mb anomalies with a stronger upper troughing in the western U.S. with ridging and above normal 500 mb anomalies in the northeastern part of the U.S. The anomalies being shown are pretty significant this far out which is unusual since they tend to "wash out" and lean more towards climatology. This is a almost the opposite of the pattern we have experienced for almost the last three weeks, with stronger ridging in the western part of the U.S. and deep upper troughing in the northeastern part of the U.S. In other words, the switch basically gets flipped as the overall pattern changes. -Petrucelli NOAA Medford OR Office: Watches - Warnings - Advisories OR...High Wind Warning from 10pm Tuesday to 4pm PST Wednesday for ORZ030-031. Wind Advisory from 10pm Tuesday to 4pm PST Wednesday for ORZ029>031. CA...High Wind Warning from 10pm Tuesday to 4pm PST Wednesday for CAZ085. Wind Advisory from 10pm Tuesday to 4pm PST Wednesday for CAZ085. PACIFIC COASTAL WATERS...Small Craft Advisory until 4pm PST Tuesday for PZZ350-356-370-376. Hazardous Seas Warning from 4pm Tuesday to 4am PST Wednesday for PZZ356-376. Gale Warning from 4pm Tuesday to 4am PST Wednesday for PZZ350- 370. |
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