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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 244 Pm Pst Wed Nov 29 2023
.small craft advisory in effect from Thursday afternoon through late Thursday night...
Tonight..NW winds 5 to 15 kt. Waves W 5 ft at 11 seconds.
Thu..NW winds 5 to 10 kt...rising to 10 to 20 kt. Waves N 5 ft at 5 seconds...and nw 5 ft at 15 seconds. Showers.
Thu night..NW winds 10 to 20 kt...becoming N 5 to 10 kt. Waves nw 6 ft at 6 seconds...and nw 5 ft at 13 seconds. Showers likely.
Fri..SE winds 5 to 10 kt. Waves nw 9 ft at 12 seconds.
Fri night..S winds 5 to 10 kt. Waves nw 8 ft at 12 seconds.
Sat..S winds 5 to 15 kt. Waves nw 10 ft at 16 seconds.
Sun..S winds 5 to 10 kt. Waves nw 11 ft at 14 seconds...and nw 4 ft at 21 seconds.
Mon..SE winds 5 to 10 kt. Waves nw 10 ft at 16 seconds.

PZZ400 244 Pm Pst Wed Nov 29 2023
Synopsis for northern california waters..Light northerly winds will continue today, then strengthen tomorrow behind a weak front, bringing steep seas. Winds will diminish Friday morning, but seas will remain elevated as series of larger mid- to long-period nw swells fill in and continue into early next week.

FXUS66 KEKA 292314 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 314 PM PST Wed Nov 29 2023

SYNOPSIS
An active weather pattern will bring periods of light to moderate precipitation Thursday through the weekend. Heavy rain will be possible for Del Norte County this weekend.

DISCUSSION
A cold front will move across the area on Thursday and bring light to moderate rain and mountain snow. Snow levels are expected to fall to 4000 feet Thu afternoon. Highest snow amounts in 12 hours occur across the mountain peaks. Precipitation should wind down in coverage, duration and intensity Thursday night as snow levels fall to 2500-3000 feet across eastern to northeastern Trinity. Probabilities for 2 inches or more in 12 hours are under 5% and a winter weather advisory does not appear to be necessary at this time.

Another front will bring higher amounts of rain and mountain snow on Friday. Probabilities for 2 inches or more increase to 20-30% for Scott mountain pass and South Fork mountain pass.
Marginal winter weather advisory conditions, 2"/12hr are possible on Friday above 4000 ft.

Moist westerly flow with precipitable water anomalies above 200% will move over a dominant eastern Pacific ridge over the weekend.
The positioning of this ridge will steer subtropical moisture into the Pacific NW and clip Del Norte. The highest concentration of rain will be aimed into far NW California and SW Oregon as a low pressure system in the Gulf of AK interacts and ingests the sub- tropical moisture. Potential for heavy rain rates (>0.30in/hr)
should increase as high IVT's coupled with robust SW flow intersects the west and southwest facing slopes of Del Norte County. 24hr probabilities for 1 inch or more increases above 50% this weekend for Del Norte County. Probabilities for 2 inches or more in 24 hr are lower, 20-35%, this weekend. Potential for debris flow on the Smith River Complex burn scar will increase this weekend and watch will need to be considered. For the remainder of the area, chances of exceeding 1 inch or more in 24 hours are much lower and rainfall is expected to be much lighter, especially for southern Mendocino and Lake Counties.

Uncertainty increases early next week. Deterministic guidance and ensemble means indicates a ridge building with potential for drier conditions. Ridge amplification is probably too fast and more rain will probably occur (50-70% chance) early to mid next week, especially north of Cape Mendocino.

AVIATION
Middle/high clouds ceilings, associated with an offshore...
southward moving low, prevailed early in the day; there were a few brief moments of light precip associated with the system. By noonday, clouds had basically scattered out except over much of Mendocino and parts of Trinity and Lake Counties. However, another bout of higher clouds began moving into Del Norte, well ahead of another approaching frontal boundary. Increasing clouds and associated rain will precede the front overnight, then spread inland through Thursday afternoon. During the onset, conditions will remain VFR; expect CEC and ACV to develop MVFR conditions by mid-late morning. Coastal air terminal impacts should remain quite minimal. /TA

MARINE
Light northerlies and calm seas are expected to persist this evening. Northerlies will strengthen tomorrow, generating steep seas behind a front. Winds will diminish Friday morning, but wave heights will remain elevated as a series of larger mid- to long- period NW swells fills in and continues into early next week. Wave heights of around 10 feet are expected with this first swell this weekend, but larger heights are possible early next week.

EKA WATCHES/WARNINGS/ADVISORIES
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory from noon Thursday to 3 AM PST Friday for PZZ455-470-475.

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Albion
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Wed -- 01:09 AM PST     4.70 feet High Tide
Wed -- 05:33 AM PST     3.21 feet Low Tide
Wed -- 07:13 AM PST     Sunrise
Wed -- 09:51 AM PST     Moonset
Wed -- 11:15 AM PST     6.12 feet High Tide
Wed -- 04:53 PM PST     Sunset
Wed -- 06:32 PM PST     -0.96 feet Low Tide
Wed -- 06:45 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Albion, California, Tide feet

Point Cabrillo
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Wed -- 01:30 AM PST     -0.00 knots Slack
Wed -- 03:34 AM PST     -0.55 knots Max Ebb
Wed -- 06:40 AM PST     0.00 knots Slack
Wed -- 07:14 AM PST     Sunrise
Wed -- 09:25 AM PST     0.67 knots Max Flood
Wed -- 09:52 AM PST     Moonset
Wed -- 12:04 PM PST     -0.00 knots Slack
Wed -- 03:35 PM PST     -1.45 knots Max Ebb
Wed -- 04:52 PM PST     Sunset
Wed -- 06:45 PM PST     Moonrise
Wed -- 07:40 PM PST     0.00 knots Slack
Wed -- 10:50 PM PST     1.09 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Point Cabrillo, California Current, knots

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