Point St. George to Point Arena between 60 and 150 NM Offshore Forecast
| Today...N Winds 15 To 25 Kt. Seas 7 To 12 Ft. |
| Tonight...N Winds 10 To 20 Kt. Seas 4 To 8 Ft. |
| Sat...W To Nw Winds 5 To 15 Kt, Becoming S To Sw. Seas 3 To 6 Ft. |
| Sat Night...S Winds 10 To 20 Kt. Seas 4 To 7 Ft. |
| Sun...S Winds 10 To 20 Kt. Seas 5 To 8 Ft. |
| Sun Night...S To Se Winds 15 To 25 Kt. Seas 6 To 11 Ft. |
| Mon...W Winds Less Than 10 Kt, Becoming W To Sw. Seas 8 To 11 Ft. |
| Mon Night...S To Sw Winds Less Than 10 Kt, Increasing To 5 To 15 Kt. Seas 7 To 9 Ft. |
| Tue...W To Sw Winds 5 To 15 Kt, Becoming S To Sw. Seas 5 To 7 Ft. |
| Tue Night...W To Sw Winds 5 To 10 Kt, Becoming Nw 5 To 15 Kt. Seas 5 To 6 Ft. |
| Area Forecast Discussion National Weather Service Eureka CA 1227am PDT Fri April 17 2026 Synopsis Near-freezing to freezing overnight low temperatures expected through the end of the week. Breezy winds forecasted for Lake County through Friday afternoon. Rain expected late weekend into next week before a potential drying trend to end next week. Surface high pressure off the PacNW coastline is interacting with surface low pressure near Las Vegas. This pressure gradient is the driving force for the breezy winds that were present Thursday. These winds are forecasted to continue through Friday morning, the strongest of which are expected to form in Lake County. Overall, winds will be below wind advisory level. However, due to the complex terrain of Lake County, sporadic gusts could 30mph with exposed ridges possibly reaching up to 40mph. The aforementioned surface high pressure system is formed by colder air aloft. This dry, cold air is allowing overnight and early morning temperatures to get very cold. Interior temperatures are forecasted to drop as low as decaf below freezing again this morning. Coastal temperatures could get as low as freezing for the entire NW CA coastline. Freeze Warnings have been issued for some of the coldest interior valleys, along with Frost Advisories for most coastal areas. It is recommended to cover sensitive plants and take other precautions to protect agricultural property. Icy roads also pose a possible threat through the morning. This coming weekend's storm track as varied slightly. Global models now show an upper level trough developing farther out in the Pacific than previous models indicated. By the time this storm begins to impact NW CA, the storm looks to be more of a cutoff low than a sustained deep trough. 250mb winds shows the polar jet stream breaking off from this storm. Rainfall is still forecasted for the entire CWA. CW3E shows around an 80% probability of IVT values over 250kg/m/s and a majority of ensembles members show IVT values between 200-400 IVT. This very weak AR will move slowly, stalling off the coast funneling moisture over the area from Sunday through Monday. Sunday's rain is forecasted to arrive anytime from the morning to the early afternoon as of now. Sunday afternoon through Monday afternoon looks to be rainiest period. NBM data shows the heaviest rainfall rates and totals for the King Range and northern Mendocino County of 2.00-3.00". Elsewhere, rain looks to be between 0.50-1.00" for valleys and between 1.00-1.50" for interior mountains of Del Norte, Humboldt, Southern Trinity, and Mendocino counties. Snow levels are generally expected to be around 5,000 feet ahead of the upper level low. Widespread rain could shift into showers as soon as Monday evening with less widespread coverage. Showers may linger into Wednesday as the upper level low slowly takes its time moving out of the area. The GFS (Global Forecast System) and ECMWF (European Centre for Medium-Range Weather Forecasts) both show high pressure and dry weather is forecasted for the end of next week after these showers pass. DS Marine Northerly winds continue to ease through this morning as the pressure gradient weakens. Steep seas around 10 to 12 ft at 10 seconds will slowly subside down to 5 to 7 ft by Friday afternoon. The strongest winds in the lee of Cape Mendocino and in the northern outer waters in the lee of Cape Blanco will stay above gale force into early/mid morning. A frontal system moves through the area Saturday night into Sunday. Winds will increase and turn southerly. Wind gusts are forecast to peak at around 20 to 25 kts, but there is a low-end chance (15%) for gale force gusts Sunday and Monday in the outer waters. A mid-period west swell will also arrive Monday, peaking at around 8 to 10 ft at 13 seconds. Winds and seas gradually subside Tuesday. Stronger northerly winds return mid to late next week. JB&JLW .EKA WATCHES/WARNINGS/ADVISORIES... CA... Frost Advisory until 9am PDT this morning for CAZ101-103- 104-109-112-113. Freeze Warning until 9am PDT this morning for CAZ102-105- 106-108-110-111-114-116>118. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 3am PDT early this morning for PZZ450. Gale Warning until 3am PDT early this morning for PZZ455- 470-475. For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png |
Eureka CA Radar
Pacific Southwest Radar