Sunrise 6:14 AM   Sunset 8:05 PM Moonrise 12:22 AM   Moonset 9:20 AM

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PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 904 Am Pdt Mon Apr 29 2024
.gale warning in effect through late tonight - .
Today - NW winds 25 to 35 knots with gusts up to 40 knots. Wind waves 7 to 9 ft. NW swell 4 to 6 ft at 12 seconds. Tonight - NW winds 25 to 35 knots. Wind waves 8 to 10 ft. NW swell 3 to 5 ft at 11 seconds. Tue - NW winds 20 to 30 knots. Wind waves 9 to 11 ft. NW swell 3 to 5 ft at 11 seconds. Tue night - NW winds 25 to 35 knots with gusts up to 45 knots. Wind waves 10 to 12 ft. NW swell 4 to 6 ft at 12 seconds. Wed - NW winds 15 to 25 knots with gusts up to 30 knots. Wind waves 8 to 10 ft. NW swell 4 to 6 ft at 12 seconds. Wed night - NW winds 15 to 25 knots with gusts up to 35 knots. Wind waves 7 to 9 ft. NW swell 2 to 4 ft at 11 seconds. Thu - NW winds 15 to 25 knots with gusts up to 30 knots. Wind waves 5 to 7 ft. NW swell 2 to 4 ft. Fri - NW winds 10 to 20 knots with gusts up to 30 knots. Wind waves 4 to 5 ft. NW swell 3 to 5 ft.

PZZ500 904 Am Pdt Mon Apr 29 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
hazardous conditions will prevail over the coastal waters through midweek thanks to persistent gusty northerly winds. Gale force winds with gusts 40 to 45 knots will be possible over the outer waters and portions of the immediate coast near point reyes and point sur. The strong winds will result in fresh steep wind waves with heights reaching 10 to 12 feet. Conditions will gradually improve late in the week into next week.

FXUS66 KEKA 291238 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 538 AM PDT Mon Apr 29 2024

SYNOPSIS
Stratus and low cloud cover will continue to clear out through the morning. Mild pleasant weather is expected today with colder temperatures expected overnight into Tuesday. Offshore flow and high pressure will promote warming and drying for the interior, late in the week.



DISCUSSION
Low clouds and stratus have already begun to dissipate as drier air aloft is being infused into the area via high pressure, bringing subsidence and pleasant weather by the late morning. Skies are likely to clear as subsidence influences the region. A week inversion can be observed on model soundings, further encouraging mild and pleasant weather as winds mix down. The previously mentioned Pacific high will continue the ridging pattern locally with a meridional flow as it interacts with a mid level trough, to the north of our CWA A steep pressure gradient, with perpendicular alignment to the coast, will accelerate northerly winds in this meridional flow pattern bringing gusty winds to bear on the Mendocino coast and the interior. Anomalously high winds are being signaled by the ensembles and EFI, for coastal areas south of Point Arena and south towards the SF bay area.

Drier air aloft and clearing out of sky cover will allow more radiative cooling over the next few days. This will enhance the probability of frost this morning in Trinity and N Mendocino counties, for which an FR.Y has been issued. These conditions will continue dropping temperatures towards freezing late tonight into Tuesday morning and are expected to spread into the Humboldt and Del Norte interiors. A Freeze Watch has been issued to cover these conditions as NBM indicates a probability of 50-75% for temperatures falling <32 degrees Tuesday morning.

Late Tuesday into Wednesday, gusty northerly winds are expected as the pressure gradient tightens considerably along the coast.
Clearing skies and increasing offshore flow early Wednesday will promote widespread warming and drying across the region, especially in the interior. RH values currently forecast to drop to 30% in interior Mendocino, Trinity and Lake Counties. Models are still without consensus on high valley temperatures Thursday and Friday - right now NBM only has >50% probabilities in southern Mendocino and Lake counties. Regardless, an overall warming trend is expected with highs in the 70's. /JM /EYS


Aviation
An upper level trough is bringing a few showers to the area this morning, however VFR conditions are in place at the TAF sites. These may briefly lower conditions this morning. Some low clouds are in place in many of the valleys of Humboldt and Del Norte counties. Later this morning and into the afternoon as the trough moves out winds will become breezy, especially in Mendocino and Lake counties. This evening and tonight winds are expected to diminish, but this may be slower than usual. Tonight a few clouds are possible in the valleys of Humboldt county near the coast, but the taf sites and most other areas should remain fairly clear. MKK

Marine
Northerly winds have started to pick up in the southern waters, mainly near Point Arena and just downwind of Cape Mendocino.
Gusts close to 30 kt are occurring in some localized areas.
Elsewhere winds are only 5 to 15 kt. Wind driven waves have started to increase with 5 feet at 6 seconds being reported at the buoy off Point Arena. The northwest swell is currently around 6 feet at 12 seconds. The winds will increase some this afternoon, but mainly just south of Cape Mendocino. A small craft advisory has been issued to highlight that.

Tonight and Tuesday winds are expected to remain fairly similar to today. Tuesday night and Wednesday winds are expected to start increasing as high pressure finally starts to build into the eastern Pacific. Small craft advisories will likely be needed for the northern waters and gales are possible in the southern waters.
Thursday and Friday winds are expected to gradually diminish as another weather system approaches the area. The swell is expected to get reinforced on Tuesday peaking 8 feet at 12 seconds. This swell is expected slowly diminish through the week. MKK



EKA WATCHES/WARNINGS/ADVISORIES
CA...
Freeze Watch from late tonight through Tuesday morning for CAZ102-105>108.

Frost Advisory until 9 AM PDT this morning for CAZ107-108- 110-111.

NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory from 3 PM this afternoon to 3 AM PDT Thursday for PZZ455-475.

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Arena Cove
Click for Map
Mon -- 01:23 AM PDT     Moonrise
Mon -- 02:21 AM PDT     5.37 feet High Tide
Mon -- 06:18 AM PDT     Sunrise
Mon -- 09:59 AM PDT     -0.61 feet Low Tide
Mon -- 10:21 AM PDT     Moonset
Mon -- 05:43 PM PDT     4.08 feet High Tide
Mon -- 08:06 PM PDT     Sunset
Mon -- 09:52 PM PDT     3.60 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Arena Cove, California (2), Tide feet

Point Arena
Click for Map
Mon -- 12:49 AM PDT     0.44 knots Max Flood
Mon -- 01:23 AM PDT     Moonrise
Mon -- 03:09 AM PDT     -0.00 knots Slack
Mon -- 06:18 AM PDT     Sunrise
Mon -- 07:14 AM PDT     -1.19 knots Max Ebb
Mon -- 10:21 AM PDT     Moonset
Mon -- 11:14 AM PDT     0.00 knots Slack
Mon -- 02:25 PM PDT     0.82 knots Max Flood
Mon -- 06:15 PM PDT     -0.00 knots Slack
Mon -- 08:06 PM PDT     -0.37 knots Max Ebb
Mon -- 08:06 PM PDT     Sunset
Mon -- 10:55 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Point Arena, California Current, knots

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