Point St. George to Point Arena between 60 and 150 NM Offshore Forecast
25 - 35
25 - 35
15 - 25
10 - 20
5 - 10
5 - 15
|Tonight...W To Sw Winds 25 To 35 Kt. Seas 12 To 20 Ft. Rain Early, Then Scattered Showers And Tstms.|
|Wed...W To Sw Winds 25 To 35 Kt, Becoming E To Ne 15 To 25 Kt. Seas 9 To 16 Ft. Scattered Showers And Tstms.|
|Wed Night...N To Nw Winds 15 To 25 Kt. Seas Subsiding To 7 To 12 Ft.|
|Thu...Nw Winds 10 To 20 Kt, Becoming W To Nw 10 To 15 Kt. Seas Subsiding To 6 To 8 Ft.|
|Thu Night...W To Sw Winds 5 To 10 Kt. Seas 5 To 7 Ft.|
|Fri...Sw Winds 5 To 15 Kt, Becoming S 15 To 25 Kt. Seas 4 To 6 Ft.|
|Fri Night...S To Sw Winds 20 To 30 Kt. Seas 5 To 8 Ft.|
|Sat...Nw Winds 10 To 20 Kt, Becoming W To Nw 10 To 15 Kt. Seas 5 To 7 Ft.|
|Sat Night...W Winds 10 To 15 Kt. Seas 5 To 8 Ft.|
|Sun...W Winds 10 To 20 Kt, Becoming Nw. Seas 5 To 9 Ft.|
|Sun Night...Nw Winds 15 To 20 Kt. Seas 7 To 11 Ft.|
| Area Forecast Discussion|
National Weather Service Eureka CA
227pm PDT Tuesday Mar 28 2023
Showers will produce beneficial rainfall across the lowlands during the next 24 hours, while periods of light to moderate snow occur across the interior mountains. In addition, gusty winds will impact portions of Del Norte, Humboldt, and Trinity Counties this evening. Otherwise, cool and dry weather is expected Wednesday night through Friday, followed by additional precipitation during the weekend.
A fully occluded Pacific cyclone was centered offshore from NWRN CA this afternoon. An associated frontal boundary passed east across the region during the midday period, and post-frontal precipitation has subsequently transitioned to scattered showers. There is a very marginal non-zero chance of a lightning strike occurring with showers along the coast tonight, as well as sporadic instances of graupel/sleet/small hail. Otherwise, beneficial rainfall is expected across the lowlands during the next 24 hours, while light snow occurs across the interior mountains. One exception is continued periods of moderate snowfall in Trinity County for elevations above 2500 ft MSL, with accumulations during the next 12-18 hours ranging from 5 to 12 inches. Thus, a winter storm warning remains in effect through Wednesday morning. Otherwise, as the cyclone located offshore moves south this evening, gusty winds will redevelop across exposed ridges and coastal headlands in Del Norte, Humboldt, and Trinity Counties. That has prompted a wind advisory for gusts to 50 mph in effect until 11pm tonight.
The previously mentioned cyclone is forecast to exit south of the region during Wednesday afternoon. Showers will begin to dissipate as that takes place, and skies will clear going into Wednesday night. Cold low temperatures in the low to mid 20s will develop across interior valleys by Thursday morning, with widespread frost occurring across much of the region. Thereafter, cool and mainly dry weather will continue into Thursday afternoon and much of Friday. An upper disturbance moving across the PACNW during the weekend will then aid in additional precipitation across NWRN CA, and that period of wet weather may persist into early next week.
Compact surface low about 100NM west of Pt St George will slowly meander southward tonight through Wednesday. Large steep waves will continue to impact the waters through much of tonight before trending downward during the day on Wednesday. Gale force winds will also persist tonight, primarily from Cape Mendocino and northward. Winds will slowly diminish and shift to the north on Wednesday, though seas will likely remain elevated, especially south of Cape Mendocino. Lighter winds and lower seas are forecast for Thursday, before a front brings an increase in southerly winds north of Cape Mendocino on Friday.
.EKA WATCHES/WARNINGS/ADVISORIES... CA... Wind Advisory until 11pm PDT this evening for CAZ101>108.
Winter Weather Advisory until 11am PDT Wednesday for CAZ105-106-110-111-114-115.
Winter Storm Warning until 11am PDT Wednesday for CAZ107- 108.
NORTHWEST CALIFORNIA COASTAL WATERS... Gale Warning until 10pm PDT this evening for PZZ450.
Small Craft Advisory until 5pm PDT Wednesday for PZZ455.
Gale Warning until 5am PDT Wednesday for PZZ470.
Hazardous Seas Warning until 5am PDT Wednesday for PZZ475.