Marine Weather Net

Point St. George to Cape Mendocino CA out 10 NM Marine Forecast


TODAY

N
WINDS
10 - 20
KNOTS

TONIGHT

N
WINDS
10 - 20
KNOTS

SUN

N
WINDS
10 - 20
KNOTS

SUN NIGHT

W
WINDS
5 KNOTS

The Marine Weather Forecast In Detail:
PZZ450 Forecast Issued: 253 AM PST Sat Nov 26 2022

SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
Today...N Winds 10 To 20 Kt. Gusts Up To 30 Kt. Waves N 11 Ft At 9 Seconds.
Tonight...N Winds 10 To 20 Kt. Waves N 9 Ft At 9 Seconds...And Nw 6 Ft At 13 Seconds.
Sun...N Winds 10 To 20 Kt...Becoming Nw 5 To 10 Kt. Waves N 8 Ft At 9 Seconds...And Nw 5 Ft At 12 Seconds. Slight Chance Of Rain.
Sun Night...W Winds 5 Kt. Waves Nw 8 Ft At 13 Seconds...And W 3 Ft At 20 Seconds.
Mon...N Winds 5 To 15 Kt. Waves Nw 11 Ft At 14 Seconds...And W 7 Ft At 16 Seconds.
Tue...Ne Winds 5 To 10 Kt. Waves Nw 8 Ft At 13 Seconds.
Wed...S Winds 5 To 10 Kt. Waves Sw 3 Ft At 5 Seconds...And Nw 5 Ft At 12 Seconds.
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Area Forecast Discussion
National Weather Service Eureka CA
500am PST Sat Nov 26 2022

Synopsis
Dry weather with near normal temperatures and occasionally breezy conditions are forecast for this weekend. A colder system will follow Sunday night through Monday, providing light rain and mountain snow. A series of colder storms will bring lowering snow levels and a potential for subfreezing temperatures to coastal areas mid to late next week.

The frontal boundary continues to move across the area with numerous clouds, but little to no rainfall. This continues to move south and east and the mid and high clouds associated with it are starting to thin. Skies are clearing behind it, although some low clouds appear to have developed along the Humboldt coast. It is hard to determine how widespread these are at this point. Once these clouds clear, sunny skies are expected with breezy conditions at the coast. Temperatures at the coast will be notably cooler than yesterday, only reaching the low to mid 50s. Inland areas will cool a few degrees as well. These mainly clear skies are expected to continue tonight and temperatures will be chilly. Frost is likely in the coastal zones so have gone ahead and issued a frost advisory for tonight.

Sunday high clouds expected ahead of the next system. Models have come into better agreement on some rain and light snow coming to the area Sunday night and Monday. Snow levels are expected to around 5,000 feet for much of the precip, but will fall during the day on Monday to around 3,000 feet. Rainfall amounts look to range from around three quarters of inch in Del Norte county, to a half inch in much of Humboldt county and continuing to diminish farther south and east. Snowfall amounts generally look to be less than two inches in populated areas and on highway passes.

Monday night will see a cold airmass over the area, but low temperatures remain uncertain due to the uncertainty in cloud coverage. Tuesday clearing skies are expected and it may be the driest day of the week. Temperatures are expected to remain in the 50s. Tuesday night the next system starts to approach the area. This could provide enough clouds to limit the potential for frost.

Deterministic and ensemble models have shifted notably wetter and colder for the system Wednesday night and Thursday. The current forecast has rainfall amounts ranging from over 2 inches in Del Norte county to less than a quarter inch in Lake county. Snow levels are expected to come down to around 2,000 to 2,500 feet in the north. If this occurs it could cause fairly large impacts on travel Thursday. This is a fairly big change from previous runs so have held off on to many adjustments and too much messaging. Friday and Saturday some showers are expected to continue. MKK

Marine
Gale force conditions will spread south through the outer waters over the next 24 hours. In response seas will become steep and hazardous and propagate toward shore, making a small craft advisory necessary for the inner waters. Gale conditions are forecast to ease by Sunday morning. Lingering steep and elevated seas are expected. Another NW swell is forecast by late Monday into Tuesday at about 7 to 8 feet at 16 seconds.

.EKA WATCHES/WARNINGS/ADVISORIES... CA... Frost Advisory from midnight tonight to 9am PST Sunday for CAZ101-103-109.

NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 9pm PST Sunday for PZZ450.

Small Craft Advisory until 9am PST Monday for PZZ455.

Small Craft Advisory until 3am PST early this morning for PZZ470.

Gale Warning until 3am PST Sunday for PZZ470.

Small Craft Advisory until 3pm PST this afternoon for PZZ475.

Gale Warning from 3pm this afternoon to 3am PST Sunday for PZZ475.