NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION. Privacy and Cookie policy

PZZ410 700 Pm Pdt Mon Apr 17 2023
a marine weather statement has been issued for the following areas... Coastal waters from pt. St. George to cape mendocino ca out 10 nm... Humboldt bay... Humboldt bay bar... Waters from pt. St. George to cape mendocino ca from 10 to 60 nm...
at 659 pm pdt, doppler radar indicated strong Thunderstorms, capable of producing winds to around 30 knots and small hail. These Thunderstorms were located along a line extending from near trinidad head to 18 nm northwest of cape mendocino, moving east at 20 knots.
precautionary/preparedness actions...
water spouts are possible along with stronger Thunderstorms...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass.
mariners can expect gusty winds to around 30 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass.
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lat...lon 4080 12413 4080 12418 4072 12422 4070 12421 4069 12423 4070 12426 4070 12427 4071 12427 4045 12442 4047 12479 4054 12490 4108 12416 4105 12415 4103 12411 4100 12412 4076 12423 4087 12415 4085 12409 4083 12408

PZZ400 855 Pm Pst Wed Nov 29 2023
Synopsis for northern california waters..Light northerly winds will begin to strengthen tomorrow behind a weak front, bringing steep seas. Winds will diminish Friday morning, but seas will remain elevated as a 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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Eureka
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Wed -- 01:49 AM PST     5.90 feet High Tide
Wed -- 06:38 AM PST     3.18 feet Low Tide
Wed -- 07:19 AM PST     Sunrise
Wed -- 09:59 AM PST     Moonset
Wed -- 12:40 PM PST     7.87 feet High Tide
Wed -- 04:50 PM PST     Sunset
Wed -- 06:40 PM PST     Moonrise
Wed -- 07:40 PM PST     -1.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Eureka, Humboldt Bay, California, Tide feet

Fields Landing
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Wed -- 01:44 AM PST     5.51 feet High Tide
Wed -- 06:20 AM PST     3.39 feet Low Tide
Wed -- 07:19 AM PST     Sunrise
Wed -- 09:59 AM PST     Moonset
Wed -- 12:08 PM PST     7.49 feet High Tide
Wed -- 04:50 PM PST     Sunset
Wed -- 06:41 PM PST     Moonrise
Wed -- 07:33 PM PST     -1.15 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Fields Landing, Humboldt Bay, California, Tide feet

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