Cascade Head to Florence, OR out 10 NM Marine Forecast
| Rest Of Today...Sw Wind To 5 Kt. Wind Waves Sw 1 Ft At 4 Seconds. Nw Swell 2 Ft At 9 Seconds. Widespread Dense Fog And A Chance Of Showers In The Morning, Then Areas Of Dense Fog In The Afternoon. |
| Tonight...N Wind To 5 Kt. Wind Waves N 1 Ft At 4 Seconds. Nw Swell 3 Ft At 9 Seconds. Areas Of Dense Fog In The Evening. Patchy Dense Fog After Midnight. |
| Wed...N Wind 5 Kt. Wind Waves N 1 Ft At 4 Seconds. Nw Swell 3 Ft At 9 Seconds. Patchy Dense Fog In The Morning. |
| Wed Night...Nw Wind 5 Kt. Wind Waves W 1 Ft At 4 Seconds. Nw Swell 3 Ft At 9 Seconds. |
| Thu...Se Wind 5 Kt, Veering To W In The Afternoon. Wind Waves Se 1 Ft At 4 Seconds, Shifting To The W At 4 Seconds In The Afternoon. Nw Swell 3 Ft At 10 Seconds. |
| Thu Night...N Wind 5 To 10 Kt. Wind Waves N 1 Ft At 4 Seconds. Nw Swell 3 Ft At 10 Seconds. |
| Fri...N Wind 5 To 10 Kt. Wind Waves 2 Ft. Nw Swell 3 Ft. |
| Sat...Nw Wind 5 To 10 Kt. Wind Waves 2 Ft. Nw Swell 4 Ft. |
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Area Forecast Discussion National Weather Service Portland OR 258am PST Tuesday Jan 14 2025 Synopsis Dry weather will prevail through the majority of the week into the weekend as high pressure re-builds across the Pacific Northwest. The only exception is a weak weather system producing slight chances of light rain Thursday into Friday, mainly along the coast and higher terrain. Cold overnight temperatures this week with inland temperatures near freezing, producing frosty mornings. Moderate confidence in colder overnight temperatures manifesting this weekend with inland temperatures likely dropping into the 20s. .SHORT TERM...Now through Thursday...Low stratus continues to remain over the Willamette Valley and inland valleys, limiting diurnal temperature variations and keeping a low overcast deck. Over the next few days, expect temperatures to bounce back and forth somewhere between the mid 30s and low 40s. With no real synoptic weather that could break the pattern, expect overcast skies and similar temperatures through Thursday at least. While clearing could allow for certain patchy areas to reach freezing overnight, cloud cover should generally keep temperatures from falling too much, limiting the threat of frost as well. Indications for a very weak front to pass through during Thursday daytime hours, but this looks quite weak; little to no accumulation expected anywhere but the mountains, and virga and some high clouds is the most likely result. /JLiu Long Term Friday through Monday Cluster guidance continues to show high confidence in ridging returning this weekend, though moderate confidence in the degree of ridging. Colder overnight temperatures will continue as the passing front ushers in colder air from Canada, but if strong ridging occurs as ~60-70% of the clusters indicate, even colder overnight temperatures could materialize. NBM guidance shows 50-60% confidence in low temperatures below 25 degrees Sunday and Monday mornings. Near universal agreement in temperatures below freezing Saturday morning through Monday morning at least. NBM indicates this pattern is likely to continue into early next week. -HEC/JLiu Marine High pressure remains in place over the waters through the weekend, resulting in persistent northerly flow with winds generally staying under 20 kt. A northwesterly swell will also remain in place with wave heigheights generally ranging between 6 to 10 ft with a dominant wave period between 13 and 17 seconds. With seas near 10 ft from Tuesday afternoon through Wednesday morning, have issued a Small Craft Advisory for all marine zones during that time. Have also issued a Small Craft Advisory for the Columbia River Bar for the same time period. Seas along the Columbia River Bar will peak near 12 ft late Tuesday afternoon into the early evening hours, as this is when a very strong ebb current of 6.41 kt will occur. A weak frontal passage Thursday through Thursday night will likely bring breezier northerly wind with gusts between 20-25 kt, mainly for the outer coastal waters. Otherwise, conditions will remain relatively quiet. -TK/DH NOAA Portland OR Office: Watches - Warnings - Advisories OR...None. WA...None. PZ...Small Craft Advisory from 10am this morning to 10am PST Wednesday for PZZ210-251>253-271>273. |
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