Cape Mendocino to Point Arena CA from 10 NM to 60 NM Marine Forecast
| Today...N Wind 10 To 15 Kt. Seas 6 Ft. Wave Detail: N 6 Ft At 5 Seconds And W 3 Ft At 13 Seconds. |
| Tonight...N Wind 15 To 20 Kt. Seas 7 Ft. Wave Detail: N 6 Ft At 6 Seconds And W 3 Ft At 12 Seconds. |
| Fri...N Wind 25 To 30 Kt With Gusts Up To 40 Kt. Seas 10 Ft. Wave Detail: N 10 Ft At 8 Seconds And W 2 Ft At 11 Seconds. |
| Fri Night...N Wind 30 To 35 Kt With Gusts Up To 45 Kt. Seas Around 14 Ft. Wave Detail: N 14 Ft At 11 Seconds And W 5 Ft At 14 Seconds. |
| Sat...N Wind 25 To 30 Kt With Gusts Up To 45 Kt. Seas 15 Ft. Wave Detail: N 15 Ft At 11 Seconds And Nw 4 Ft At 13 Seconds. |
| Sat 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 And Nw 3 Ft At 12 Seconds. |
| Sun...N Wind 15 To 20 Kt. Seas 9 Ft. Wave Detail: N 9 Ft At 8 Seconds And Nw 3 Ft At 11 Seconds. |
| Sun Night...N Wind 10 To 15 Kt. Seas 8 Ft. Wave Detail: N 8 Ft At 8 Seconds And Nw 3 Ft At 16 Seconds. |
| Mon...N Wind 5 To 10 Kt. Seas 6 Ft. Wave Detail: N 5 Ft At 9 Seconds And Nw 3 Ft At 16 Seconds. |
| Mon Night...N Wind 10 To 15 Kt. Seas 5 Ft. Wave Detail: N 5 Ft At 8 Seconds And W 3 Ft At 14 Seconds. |
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Area Forecast Discussion National Weather Service Eureka CA 512am PST Thu Jan 23 2025 Synopsis Mostly dry for the next six days, then potential of light precipitation arrives late Wednesday night into Thursday next week. Chilly nigheights and mornings, especially this weekend. Potential for gusty winds return to the area Friday through Sunday, focusing on the coast Friday, and including more interior locations Saturday into Sunday. .Synopsis...Mostly dry for the next six days, then potential of light precipitation arrives late Wednesday night into Thursday next week. Chilly nigheights and mornings, especially this weekend. Potential for gusty winds return to the area Friday through Sunday, focusing on the coast Friday, and including more interior locations Saturday into Sunday. Discussion... Key Messages: Cold mornings are forecast through early next week, especially this weekend. There is strong potential for gusty winds for the coast on Friday and Saturday, focusing on the coast on Friday and the interior for Saturday and a bit into Sunday. Weather Pattern Overview: Upper level ridge over the eastern Pacific will give way on the eastern periphery to a sizable upper trough sliding in from the east by Friday night. Off shore winds are keeping stratus off shore and keeping us clear of fog along the coast. Even valley fog is suppressed with increased dryness. This trough has been consistently forecast with placement and timing and the trough axis remaining south and southeast of our area. Mainly dry weather is forecast until late Wednesday into Thursday. Forecast Confidence and Deviations: Wind gusts will increase to over 30 mph along the coast on Friday, and increase to over 30 mph over parts of the interior for Saturday, especially on ridges. NBM is not capturing the potential of stronger gusts indicated by NBM 24-hour wind max wind gusts, and combined NBM and NBM 90 for winds and gusts to at least put gusts within the interquartile of 24-hours for Friday, Saturday, and into Sunday. We still stand a 20-40% chance of 45 mph or greater along the coast on Friday, and a 50-60% chance of 45 mph or greater wind gusts for parts of Lake County. Ensembles indicate a anomalously warm temperatures today as ahead of the next weather system approaching from the north. Used an NBM/NBM90 blend for highs, hiking us up into the lower 60s on the coast, giving us highs above the NBM deterministic but well within the interquartile of the NBM. However, overall, preference continues for trained deterministic NBM for temperatures that are trained within the past 30 days, as opposed to necessarily falling within the NBM interquartile range. NBM mean apparent temperatures have finally caught up to what the WBGT (Wet Bulb Global Temperature) which can at times be utilized for cold rather than heat, for indicating the potential for the cold "feels like" temperatures dipping into the upper 20s on the coast and into the teens for the interior valleys by Sunday morning. Model trends have continued to indicate that the Friday night into Saturday night time range there will be a slight chance of measurable rain in Lake County. Although deterministic forecasts do not show this, Lake County will be close enough to the trough axis to stand the best chance of some light precipitation, considering 24- hour precipitation chances in the NBM. If light precipitation does fall in this time period, there is potential for some light dusting of snow above 3000 feet. NBM is still indicating a 20% chance of light precipitation potential for Lake County in this time frame. The best chance for precipitation arrive Wednesday night into Thursday as 24- hour potential for measurable precipitation increases to 50-70% for most of the area, except a sharply less chance of 20% over Lake County. Marine Northerly winds winds diminish this morning to around 5 to 15 kt while the strongest winds move well offshore. Another long period wave is expected today, with models show it peaking around 5 ft at 15 seconds on Friday. A more significant wind event is expected Friday and Saturday. Northerly winds are expected to start increasing Thursday night and continue to strengthen through Friday. Gale Force gusts are likely by sunrise Friday morning around 50 to 60 NM off Pt St George. These are expected to quickly spread closer to the coast and farther south through the morning and into the afternoon. At this point it looks like there may be a few Gale Force gusts in the inner waters Friday afternoon through Saturday morning as well. These stronger winds on Friday and Saturday will add 10 to 15 ft steep waves to the sea state. The models are coming into better agreement that these winds and locally generated seas will diminish Sunday afternoon and evening. Issued the Gale Warning for the outer waters and small craft advisory for the inner waters. Went out a little farther in time with the advisory since most marine activity is in the inner waters right now. Sunday winds are expected to remain in the 15 to 25 kt range and slowly diminish through the day with lighter winds expected next week. A small swell of 4 to 5 feet at 15 seconds is expected to linger as well. MKK/TRN .EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory from 3pm Friday to 7pm PST Saturday for PZZ450-455. Gale Warning from 9am Friday to 7pm PST Saturday for PZZ470. Gale Warning from 3pm Friday to 7pm PST Saturday for PZZ475. |
Eureka CA Radar
Pacific Southwest Radar