Point St. George to Cape Mendocino CA from 10 to 60 NM Marine Forecast
| Tonight...N Wind 25 To 30 Kt With Gusts Up To 45 Kt. Seas 12 Ft. Wave Detail: N 12 Ft At 8 Seconds And Nw 5 Ft At 11 Seconds. |
| Thu...N Wind 25 To 30 Kt With Gusts Up To 40 Kt. Seas 12 Ft. Wave Detail: N 12 Ft At 10 Seconds And Nw 5 Ft At 11 Seconds. |
| Thu Night...N Wind 25 To 30 Kt With Gusts Up To 40 Kt. Seas Around 12 Ft. Wave Detail: N 12 Ft At 10 Seconds. |
| Fri...N Wind 25 To 30 Kt With Gusts Up To 40 Kt. Seas 12 Ft. Wave Detail: N 12 Ft At 10 Seconds. |
| Fri Night...N Wind 25 To 30 Kt. Seas 11 Ft. Wave Detail: N 11 Ft At 9 Seconds. |
| Sat...N Wind 20 To 25 Kt. Seas 9 Ft. Wave Detail: N 9 Ft At 8 Seconds And Sw 2 Ft At 17 Seconds. |
| Sat Night...N Wind 15 To 20 Kt. Seas 8 Ft. Wave Detail: N 8 Ft At 8 Seconds. |
| Sun...N Wind 15 To 20 Kt. Seas 8 Ft. Wave Detail: Nw 8 Ft At 8 Seconds And Sw 2 Ft At 15 Seconds. |
| Sun Night...N Wind 10 To 15 Kt. Seas 7 Ft. Wave Detail: N 5 Ft At 7 Seconds And Nw 5 Ft At 14 Seconds. |
| Mon...Nw Wind 5 To 10 Kt. Seas 6 Ft. Wave Detail: Nw 3 Ft At 7 Seconds And Nw 5 Ft At 13 Seconds. |
| Mon Night...Nw Wind 15 To 20 Kt. Seas 7 Ft. |
| Area Forecast Discussion National Weather Service Eureka CA 143pm PDT Wednesday May 20 2026 Synopsis Clear and dry conditions will remain through the week with a warming trend through Thursday. A weak and shallow marine layer will hang along shore. Temperatures will trend lower this weekend weekend. .KEY MESSAGES... - Winds will trend lighter Thursday and much lighter through the holiday weekend -A brief chance for very light rainfall or light drizzle early next week -Chance for morning coastal stratus and fog will persist, with increasing opportunity for longer duration stratus and fog through the weekend -Conditions will warm through Thursday with highs in the interior peaking near 90. The stratus quickly cleared out through midday. Expecting a similar evolution Thursday, with shallow stratus and fog giving way to ample sunshine. A ridge of high pressure is building in over the region. This will increase daytime highs Thursday, creating some minor heatrisk for the interior, with temperatures getting into the low to mid 90s. Winds will trend lower Thursday and especially through the weekend. A weak shortwave disturbance will push through from the north late Thursday and Friday. Some ensembles are generating shower activity over east Trinity Friday afternoon. These types of setups usually bare watching for thunderstorm development; however, The mid to lower level environment will be very dry and this will inhibit convective development. There is up to a 10% chance for a thunderstorm over the Yolla Bolly area Friday afternoon. A couple light showers may form otherwise, but no precipitation would likely reach the ground. .EXTENDED(Saturday through Tuesday)...High pressure weakens over the weekend, and daytime highs will trend cooler. The combination of light northwesterly flow and a shallow marine layer will present a setup for more persistent coastal stratus with some fog likely through the weekend. Most ensemble members continue to show a trough dipping across the Pacific Northwest early next week. Very light showers to light drizzle will be possible. There is currently 20 to 35% chance for 0.1 (wetting rainfall) over northern Humboldt through Del Norte. This will be dependent of how far south the low tracks, and if it ends up farther north, little to no rainfall will fall through the already dry antecedent environment. Marine Buoy observations are reporting nearshore gusts near 20kts and steep, short period waves dominating the sea state. In the outer waters, Gale Force gusts are forecasted and model data is upholding is claim with a 4mb pressure differential modeled between 10nm to 60nm out to sea. While the pressure gradient driving these winds will shift slightly over the next few days, strong winds with near-gale force gusts and short period seas will persist. High resolution ensemble model data is showing high (>80%) confidence for gale force winds in the northern outer waters. The chance for Gale force winds in the southern waters are slightly less likely at 30 - 50%. The synoptic weather pattern shifts this weekend as a storm in the gulf of alaska weakens the pacific high pressure center. This shift will result in a weakening of the surface pressure gradient and therefore, weaker winds. Significant wave heigheights will lower as a result, possibly under 5ft by Monday afternoon. Looking into next week, winds remain calm and a westerly mid-period swell enters the waters. DS .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 10am PDT Thursday for PZZ450- 455. Gale Warning until 9pm PDT Friday for PZZ470. Gale Warning until 10am PDT Thursday for PZZ475. For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png |
Eureka CA Radar
Pacific Southwest Radar