Point St. George to Cape Mendocino CA from 10 to 60 NM Marine Forecast
| Rest Of Today...W Wind 5 To 10 Kt. Seas 5 Ft. Wave Detail: Nw 1 Foot At 4 Seconds And W 5 Ft At 10 Seconds. A Slight Chance Of Showers. |
| Tonight...N Wind 10 To 15 Kt. Seas 6 Ft. Wave Detail: Nw 6 Ft At 10 Seconds And Nw 2 Ft At 13 Seconds. |
| Sun...N Wind 10 To 15 Kt. Seas 7 Ft. Wave Detail: Nw 4 Ft At 5 Seconds And Nw 7 Ft At 10 Seconds. A Chance Of Showers. |
| Sun Night...Nw Wind 10 To 15 Kt. Seas 8 Ft. Wave Detail: Nw 4 Ft At 5 Seconds And Nw 7 Ft At 10 Seconds. Showers. |
| Mon...N Wind 10 To 15 Kt. Seas 8 Ft. Wave Detail: Nw 3 Ft At 5 Seconds And Nw 8 Ft At 10 Seconds. Showers. |
| Mon Night...N Wind 10 To 15 Kt. Seas 9 Ft. Wave Detail: Nw 9 Ft At 11 Seconds. A Chance Of Showers. |
| Tue...Ne Wind 5 To 10 Kt. Seas 8 Ft. Wave Detail: Nw 8 Ft At 10 Seconds And Nw 3 Ft At 18 Seconds. |
| Tue Night...Nw Wind 5 Kt. Seas 7 Ft. Wave Detail: Nw 7 Ft At 9 Seconds And Nw 3 Ft At 16 Seconds. |
| Wed...N Wind 5 To 10 Kt. Seas 6 Ft. Wave Detail: Nw 5 Ft At 8 Seconds And Nw 3 Ft At 15 Seconds. |
| Wed Night...N Wind 5 To 10 Kt. Seas 5 Ft. Wave Detail: Nw 5 Ft At 8 Seconds And Nw 3 Ft At 14 Seconds. |
| Area Forecast Discussion National Weather Service Eureka CA 124am PDT Sat Oct 11 2025 Synopsis Colder air aloft will bring the potential for frost and across the interior valleys this weekend. A colder storm system is forecast early next week, and will bring additional rainfall and the potential for some mountain snow. After an active Friday morning with several non routine products issued by our superteam/day crew (ZVS & RPA), isolated to scattered stratiform precipitation will ease by this evening. Most of the accumulation today will be towards the Oregon border in Del Norte and Northern Humboldt with lighter accumulation in the rest of the CWA. Satellite imagery with isobar overlays and lightning detecting products, show a Meridional flow with a slight shortwave feature near shore, likely the remnants of the low pressure on the back side of the rotation displaying frontolysis as a few lightning strikes but overall a frontal decay near the coastal Oregon border. The aforementioned trough will move inland over the Pacific Northwest and Northern California this weekend. Lingering showers are expected to taper off this evening. Followed by a period of relatively drier weather with 10-30% chance for sprinkles or a few hundredths of an inch will follow in a cold airmass Saturday night and Sunday. Overnight temperatures will trend much lower through the weekend beyond the passage of a cold front. Frost and freezing temperatures are currently forecast for the portions of the interior. How cold it gets will be highly dependent on the amount of clearing/drying that happens. The upper low will be slow to depart the region before the next low begins its quick descent. Cloud cover and lingering showery weather would moderate some of the cold subfreezing overnight lows, with clearing out likely through the rest of the weekend. Ensemble and deterministic models are in a good agreement with a colder storm swooping down across the area on Monday. There still some uncertainties in the location of the low. Additional rainfall and some mountain snow look probable based on ensemble and cluster analysis. There is currently a 30-50 percent chance for 24 rainfall over an inch from 5am Monday through 5AM Tuesday, with the highest chances in Mendocino and Lake counties, as well as southern Humboldt. Colder airmass aloft will support lowering of the snow levels to near 5500 feet early Monday. /ZVS /EYS Marine Light to moderate breezes will slowly turn northerly throughout Saturday as the upper level low continues east. Winds will increase again out of the north on Sunday behind the departing low pressure system. Small craft conditions are forecast for south of Cape Mendocino Sunday into early Monday. Seas will be dominated by a northwesterly fresh swell before the northerlies increase resulting in some steeper seas, especially south of Cape Mendocino, Sunday into Monday. Another low pressure system will slide down the coast Monday into Tuesday bringing a quick period of light southerlies to some of the waters before the northerlies return. /RPA .EKA WATCHES/WARNINGS/ADVISORIES... CA... Frost Advisory until 9am PDT this morning for CAZ107-108- 110-114. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory from 11am to 11pm PDT Sunday for PZZ455. Small Craft Advisory from 3am to 11pm PDT Sunday for PZZ475. For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png |
Eureka CA Radar
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