Cape Blanco OR to Point St. George CA from 10 to 60 NM Marine Forecast
| Today...Nw Wind 5 To 10 Kt. Wind Waves 3 To 5 Ft. Swell W 11 To 13 Ft At 12 Seconds. Patchy Dense Fog In The Morning. Slight Chance Of Showers Through The Day. |
| Tonight...Northern Portion, Nw Wind 5 Kt...Becoming 5 To 10 Kt After Midnight. Southern Portion, N Wind 5 To 15 Kt. Wind Waves 3 Ft. Swell W 8 To 9 Ft At 11 Seconds. Slight Chance Of Showers Through The Night. |
| Thu...Northern Portion, N Wind 5 To 10 Kt...Backing To W Early In The Afternoon, Then...Backing To Sw Late In The Afternoon. Southern Portion, N Wind 10 To 15 Kt... Backing To Nw 5 To 10 Kt Late In The Afternoon. Wind Waves 3 Ft In The Morning...Becoming 2 Ft Or Less. Swell Nw 7 To 8 Ft At 10 Seconds. Slight Chance Of Showers Through The Day. |
| Thu Night...S Wind 5 To 15 Kt. Wind Waves 2 Ft Or Less. Swell Nw 6 Ft. Showers Likely. |
| Fri...N Wind 10 To 20 Kt. Wind Waves 2 Ft Or Less... Becoming 3 To 4 Ft In The Afternoon. Swell Nw 6 To 7 Ft. Showers Likely. |
| Fri Night...N Wind 20 To 25 Kt. Wind Waves 4 To 6 Ft...Building To 6 To 7 Ft After Midnight. W Swell 5 To 6 Ft...Subsiding To 3 Ft After Midnight. Chance Of Showers Through The Night. |
| Sat...N Wind 30 Kt...Easing To 25 Kt. Wind Waves 7 To 8 Ft. Swell N 8 To 9 Ft. |
| Sun...N Wind 25 Kt...Easing To 20 Kt After Midnight. Wind Waves 5 To 6 Ft...Subsiding To 4 Ft After Midnight. Swell N 6 To 7 Ft. |
| Area Forecast Discussion National Weather Service Medford OR 933am PDT Wednesday September 27 2023 An update is not necessary this morning. Forecast confidence through Day 7, in what will be a seasonably active pattern, is higher than normal. The remnants of a weakening front will continue across the area today. Light to moderate rainfall of a tenth of an inch to an inch overnight was mainly in southwest Oregon overnight, with light amounts of up to a tenth of an inch also in western Siskiyou County, and Klamath County. Mainly morning showers will taper off today, with the highest probability in southwest Oregon. A break between systems will follow tonight into early Thursday evening, with the main features being slightly below normal temperatures (highs on Thursday up a few degrees from those of today), and an influx of night and morning low clouds to the coast and Douglas County. The next frontal system will bear some resemblance to what occurred overnight. But, it will be a little colder, extend farther south, and is expected to be a little stronger with a measureable amount likely across our area Thursday night into Friday night. Also, today's system will quickly exit the area by tonight. But, the late week system is forecast to linger over the west coast during the weekend with chances of showers, mainly on Saturday, lingering longest east of the Cascades. The outlook is for a couple of disturbances to ride over the top of a Pacifc ridge Monday through Wednesday, remaining north of our area but producing an influx of low clouds and perhaps some chances of light drizzly showers into southwest Oregon. At this early juncture, the low clouds look to be most extensive Monday night into Tuesday morning. Marine Updated 830am September 27, 2023... Winds will ease as the front pushes onshore early today, but seas will remain hazardous. Conditions will improve tonight into Thursday, but north winds and steep seas are expected to redevelop late this week into this weekend as a thermal trough strengthens along the coast. -Hermansen /Issued 350am PDT Wednesday September 27 2023/ A weaker front is moving through the region this morning, bringing widespread, but lighter amounts of rainfall than the previous series of fronts over the past several days. With the increased cloudiness temperatures are warm enough over the east side to keep the majority of precipitation as rain as this front moves over to the east side this morning. Quasi-zonal flow forms Thursday as the trough moves east and spreads out. This will leave S. Oregon and NorCal in west- northwest flow, which will keep rain chances highest along the coast, coast ranges, and Cascades, but will be limited up to 40-50% because there is no large scale upper level support to sustain them. This will also cause afternoon temperatures to bump up 3-5 degrees. The trough will retrograde some on Friday, exerting its influence back over the region and another front onshore. Being on the backside of the trough, this front will be relatively weak. Rain chances are greatest at the coast and in the Cascades, with amounts in the mountains over 24 hours. The position of the trough on Saturday will induce some offshore flow along the coast and north winds everywhere else. While normally this would raise some fire weather concerns, the recent rains have mitigated the drying impact and lowering the threat significantly. The dry offshore flow will last through the weekend and could create high quality conditions for fog in valleys along the I-5 corridor and the coast. The most model solutions show another, more shallow, trough coming through the PNW next week. However, not all solutions show this, with about 20% building a ridge over the west. While neither would have a large impact, the differences are stark, so stay tune for how the forecast trends. NOAA Medford OR Office: Watches - Warnings - Advisories OR...CA...None. PACIFIC COASTAL WATERS...Small Craft Advisory until 11pm PDT this evening for PZZ350-356-370-376. Hazardous Seas Warning until 11am PDT this morning for PZZ350- 370. |
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