Sunrise 6:00 AM   Sunset 8:25 PM Moonrise 7:38 AM   Moonset 11:52 PM

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PZZ410 1057 Pm Pdt Wed Mar 27 2024
a marine weather statement has been issued for the following areas - . Coastal waters from cape mendocino to pt. Arena ca out 10 nm - . Coastal waters from pt. St. George to cape mendocino ca out 10 nm - . Humboldt bay - . Humboldt bay bar - . Waters from cape mendocino to pt. Arena ca from 10 to 60 nm - . Waters from pt. St. George to cape mendocino ca from 10 to 60 nm - .
at 1056 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 12 nm northwest of cape mendocino to 37 nm southwest of eureka, moving northeast at 25 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 4082 12409 4080 12413 4081 12416 4080 12418 4075 12419 4072 12422 4070 12421 4069 12423 4071 12427 4061 12433 4044 12441 4039 12437 4023 12480 4061 12466 4087 12416 4076 12423 4086 12415 4085 12412 4086 12410

PZZ400 833 Pm Pdt Sat May 11 2024
Synopsis for northern california waters - Mild marine conditions with moderate north winds and smaller, long- period swells within the coastal waters through the weekend. Winds and seas will begin to increase late Sunday as a high pressure gradient builds along the coast, with northerly gales possible in the outer waters by late Monday. 14 to 16 foot mid-period steep seas are possible Monday through Thursday.

FXUS66 KEKA 112205 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 305 PM PDT Sat May 11 2024

SYNOPSIS
The ridge of high pressure is weakening and this will allow coastal clouds to return tonight and Sunday night.
Temperatures will be cooler and an inland shower or two is expected on Sunday. Monday cooler temperatures will continue before a warmup again Tuesday and Wednesday.

DISCUSSION
A weak shortwave is approaching the area today and this is nudging the high pressure off the east. This has weakened the offshore flow and this has allowed stratus to drop down from the north. As of 2pm it is getting very close to the coast. This is expected to rapidly expand this evening once the daytime heating diminishes. This has also allowed some flat topped CU to develop over the interior areas. A few sprinkles are possible today, but otherwise it looks dry. Tonight this approaching shortwave may bring some drizzle to the coast. Sunday the coast may take some time to clear out and the immediate coast may not clear at all in some areas. Sunday afternoon there is a chance for some showers and possible a thunderstorm in northern Trinity county, but coverage should be fairly limited. Inland areas will be cooler than today by around 5 degrees or so with highs in the mid to upper 80s in the interior valleys. Sunday night into Monday the flow starts to shift again and offshore flow is possible once more. It is uncertain how quickly this will clear out the coastal clouds, but it should help with clearing on Monday. The northerly winds are also expected to increase through the day on Monday.

Tuesday and Wednesday high pressure is expected to build in along with offshore flow. This may bring highs in the mid 60s along the coast and low 90s inland. A few areas of the warmer valleys are expected to see a moderate heat risk. Late in the week the ensemble clusters show different solutions. Two of the clusters show a trough bringing a return to cooler while the other two keep high pressure over the area. This could mean the difference between highs around 90 or highs around 60. MKK

AVIATION
VFR conditions across the region will continue for the next few hours with light NNW winds. A broad shield of marine stratus is gradually enclosing the NorCal coast from the outer waters, accompanied by a southerly coastal wind reversal reaching north from the Mendocino coast and a northerly plume descending from southern Oregon. Hi-res models suggest IFR ceilings (<1,000 ft) and potential for reduced visibilities beginning just before sunset and persisting overnight for coastal terminals. Light SE offshore winds will have minor effects on the coastal extent of the stratus deck. Some uncertainty still remains regarding the lasting strength of the marine layer into Sunday and how much fog will reduce visibilities, especially early tomorrow morning. UKI expected to remain clear and dry with light offshore winds overnight.

MARINE
Light diurnally driven WNW winds will continue through the weekend as minor NW swells dominate the sea state. Northerly winds expected to increase late Sunday night into early Monday morning, forming two expansion fans downwind of southern OR and of Cape Mendocino. Gusts expected to rapidly develop in the outer waters through the day Monday, with mid-range models currently forecasting 40 knot gusts or greater beginning early Tuesday and continuing through mid-week. Steep wind wave response expected to exceed 10 feet late Monday across all zones, potentially approaching 14-16 feet by Tuesday and Wednesday in the outer waters. Seas expected to diminish slightly in the latter half of the week but remain near or greater than 10 feet, depending largely on the persistence of offshore winds.

EKA WATCHES/WARNINGS/ADVISORIES
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
None.

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Eureka Slough Bridge
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Sat -- 02:30 AM PDT     8.32 feet High Tide
Sat -- 06:02 AM PDT     Sunrise
Sat -- 08:37 AM PDT     Moonrise
Sat -- 09:30 AM PDT     -1.15 feet Low Tide
Sat -- 04:54 PM PDT     5.91 feet High Tide
Sat -- 08:23 PM PDT     Sunset
Sat -- 09:04 PM PDT     3.64 feet Low Tide
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Eureka Slough Bridge, Humboldt Bay, California, Tide feet

Humboldt Bay (south jetty)
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Sat -- 02:06 AM PDT     6.76 feet High Tide
Sat -- 06:03 AM PDT     Sunrise
Sat -- 08:38 AM PDT     Moonrise
Sat -- 09:35 AM PDT     -1.39 feet Low Tide
Sat -- 04:40 PM PDT     4.67 feet High Tide
Sat -- 08:24 PM PDT     Sunset
Sat -- 09:08 PM PDT     3.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Humboldt Bay (south jetty), California (expired 1984-12-31), Tide feet

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