Point St. George to Cape Mendocino CA out 10 NM Marine Forecast
| Rest Of Today...N Wind 20 To 25 Kt. Gusts Up To 40 Kt This Afternoon. Seas 8 Ft. Wave Detail: N 7 Ft At 7 Seconds And W 2 Ft At 10 Seconds. |
| Tonight...N Wind 20 To 25 Kt With Gusts Up To 40 Kt. Seas 11 Ft. Wave Detail: Nw 11 Ft At 8 Seconds. |
| Sun...N Wind 15 To 20 Kt. Seas 10 Ft. Wave Detail: N 10 Ft At 9 Seconds. |
| Sun Night...N Wind 15 To 20 Kt. Seas 9 Ft. Wave Detail: Nw 9 Ft At 9 Seconds. |
| Mon...Nw Wind 5 To 10 Kt. Seas 8 Ft. Wave Detail: N 7 Ft At 8 Seconds And Nw 6 Ft At 13 Seconds. |
| Mon Night...S Wind 5 Kt. Seas 7 Ft. Wave Detail: N 3 Ft At 6 Seconds And Nw 6 Ft At 12 Seconds. A Chance Of Rain. |
| Tue...S Wind 10 To 15 Kt. Seas 6 Ft. Wave Detail: Nw 5 Ft At 11 Seconds. Rain Likely. |
| Tue Night...Nw Wind 5 Kt. Seas 6 Ft. Wave Detail: W 6 Ft At 12 Seconds. Rain Likely. |
| Wed...N Wind 10 To 15 Kt. Seas 8 Ft. Wave Detail: W 8 Ft At 11 Seconds. A Chance Of Rain. |
| Wed Night...N Wind 20 To 25 Kt. Seas 11 Ft. Wave Detail: Nw 7 Ft At 7 Seconds And Nw 9 Ft At 11 Seconds. |
| Area Forecast Discussion National Weather Service Eureka CA 203am PDT Sat Mar 21 2026 Synopsis Unseasonable warmth with widespread minor heat risk in the interior is forecast to abate this weekend into early next week. Coastal northerlies will increase on Saturday after passage of a front. Next chance for rain is expected Tuesday into Wednesday. A decaying cold front moving southeast is bringing mid- to high-level moisture across the area, and aiding in a deepening marine layer. Aside from some patches of mist and coastal drizzle for the North Coast, generally dry weather conditions are expected to continue. Today will be the "coolest" day, but will still remain above climatological normals. Interior high temperatures are forecast to be generally in the upper 60s to upper 70s, except for Lake County where highs in the 80s is forecast along with a prevailing minor heat risk. Coastal high temperatures are forecast to be in the mid 50s to low 60s. In addition, breezy to locally gusty W-NW winds are expected this afternoon, especially over the coastal headlands, exposed ridges, and channeled terrain. Tonight into Sunday, a surface high will build under a zonal flow aloft. Offshore flow will promote chilly overnight temperatures with lows in the mid 30s to mid 40s for the valleys. Cooler temperatures are forecast for the Trinity valleys where low in the mid 20s to mid 30s are forecast for Sunday morning. A broad flat ridge with above normal 500 mb heigheights will dominate the weather pattern for Northwest California Sunday through early next week. A slow warming trend is expected to begin again on Sunday and persist through early next week as surface high pressure strengthens. Breezy winds are anticipated right along shore and channeled along the Eel River valley Sunday afternoon, while daytime winds will be mostly gentle and terrain driven. The high pressure will crawill eastward early to mid next week. Model guidances suggest a strong surface low approaching the Pacific NW, while a decaying frontal system moves southeastward across the area. This will bring an increasing chance of precipitation Monday night through Tuesday, especially for Del Norte and Humboldt counties. This front will contain anomalously high precipitable water values (over 200% percent of normal), enhanced 925 mb southerly winds (around 2000ft up), and IVT values over 250 kg/m/s. The front will be very quick moving, but a brief period of heavy rainfall rates are possible for the west- southwest windward facing terrain in Del Norte County. Deterministic models continue to vary widely with timing and amounts. If the low takes a farther track north, there will be much less rainfall and lighter southerly winds. Otherwise, high uncertainties remain in the detail with this system. Ridging springs back around mid next week after our brief spat of rain Tuesday or Wed. Generally dry conditions with above normal interior high temps are expected. Overnight low temps may cool down mid or late next week for perhaps low end frost freeze concerns. /ZVS Marine Very hazardous ocean conditions are forecast this weekend. North wind gusts from 34 to 42 kt are highly probable (>80% chance), primarily over the outer waters and inner waters south of Cape Mendocino. A gale warning is in effect. A long fetch of strong northerly winds will generate very steep waves from 10 to 15 feet with periods from 8 to 10 seconds by Saturday afternoon and evening. Waves this large and steep will be capable of capsizing small vessels and mariners are encouraged to remain in port. A hazardous seas warning has been issued for northern inner waters with very steep waves forecast to build to 10 ft or more Sat evening and Sat night. These very steep waves will continue Sunday morning. A secondary ramp up in very steep waves will occur Sunday afternoon and evening for the inners. For the outers, waves will remain very steep and treacherous through at least early Monday morning. Outlook going into next week: Conditions will begin to ease up and subside on Monday with lower seas into Tue. Conditions deteriorate again around mid week as a large mid period W-NW swell arrives and potential for northerly gales increases after frontal passage. .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory from 8am to 5pm PDT Saturday for PZZ450. Hazardous Seas Warning from 5pm Saturday to noon PDT Sunday for PZZ450. Small Craft Advisory until 11am PDT Saturday for PZZ455- 470-475. Gale Warning from 11am Saturday to 11am PDT Sunday for PZZ455. Gale Warning from 11am Saturday to 9pm PDT Sunday for PZZ470-475. For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png. |
Eureka CA Radar
Pacific Southwest Radar