Sunrise 6:16 AM   Sunset 8:03 PM Moonrise 11:26 PM   Moonset 7:21 AM

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PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 303 Am Pdt Sat Apr 27 2024
.small craft advisory in effect through late tonight - ..small craft advisory in effect from Sunday morning through Sunday afternoon - .
Today - NW winds 10 to 20 knots with gusts up to 25 knots - . Increasing to 20 to 30 knots this afternoon. Wind waves 6 to 8 ft. NW swell 3 to 5 ft at 14 seconds and sw up to 2 ft at 16 seconds. Tonight - NW winds 20 to 30 knots. Wind waves 6 to 8 ft. NW swell 2 to 4 ft at 14 seconds and sw up to 2 ft at 16 seconds. Sun - NW winds 15 to 25 knots with gusts up to 30 knots. Wind waves 5 to 6 ft. NW swell 3 to 5 ft at 13 seconds and sw around 2 ft at 15 seconds. Sun night - NW winds 20 to 30 knots. Wind waves 7 to 9 ft. NW swell 3 to 5 ft at 12 seconds and sw up to 2 ft at 15 seconds. Mon - NW winds 20 to 30 knots with gusts up to 40 knots. Wind waves 8 to 10 ft. NW swell 3 to 5 ft at 12 seconds. Mon night - NW winds 20 to 30 knots with gusts up to 40 knots. Wind waves 8 to 10 ft. NW swell 3 to 4 ft at 11 seconds. Tue - NW winds 20 to 30 knots with gusts up to 40 knots. Wind waves 6 to 8 ft. NW swell 3 to 5 ft. Wed - NW winds 15 to 25 knots with gusts up to 30 knots. Wind waves 5 to 7 ft. NW swell 4 to 6 ft.

PZZ500 303 Am Pdt Sat Apr 27 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
strong northwest winds with occasional gale-force gusts are expected this weekend, creating hazardous conditions for small craft operators. Moderate period northwesterly swell and breezy conditions will continue through mid week.

FXUS66 KEKA 271250 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 550 AM PDT Sat Apr 27 2024

SYNOPSIS
Light rain in the northern half of the forecast area is expected this morning through Sunday. Cold temperatures could cause frost at lower elevations as cold air advection sets in. Drier weather weather is expected early next week.



DISCUSSION
Synoptic scale views of 500mb heights show a persistent eastern Pacific high pressure system near the 140W - 150W longitude and the 30N latitude. A PWAT heavy moisture plume will wrap around the top of this high pressure system, aided by an upper level low positioned over the Aleutian islands. The upper level jet streaks between these two pressure cogs with the moisture plume following geostrophic flow. A surface shortwave feature over the coast will bring precipitation to bear on the PNW as the cold front arrives a few hours after day break. Most of the precipitation will accumulate north of Cape Mendocino. The probability of a rainfall total greater than 0.15 inches is 50% through Sunday morning in Del Norte and N Humboldt, when rain is expected to cease.

A cold core upper level low spinning off the coast of Alaska will aide in cold air advection, at least until the previously mentioned eastern Pacific high dominates our CWA with ridging and warmer air by early next week. A frost advisory has been hoisted for morning for elevations below 3000 feet, between 33 and 36 degrees. This has been isolated to valleys of Trinity, and Northern Mendocino counties.

Otherwise, broad and flat ridging is forecast to build offshore as a series of shortwave troughs brush the northern portion of the area, mostly Del Norte county, with periodic precipitation chances into mid week. Low-amplitude westerly flow will most likely keep temperatures on the mild side and near seasonal normals through early next week. Greater uncertainty arises mid to late week with potential for flow amplification over the NE Pacific and above normal interior temperatures. /EYS



Aviation
Low clouds are in place in many of the interior valleys and along some of the coast. These are expected to lift later this morning as a weak front approaches the area bringing southerly winds of 10 to 20 kt today to the northern areas. This afternoon this front will bring some light rain to KCEC and KACV. This will gradually bring some lower ceilings late this afternoon and evening along the Humboldt and Del Norte county areas. KUKI is only expected to see some high clouds and breezy northwest winds. In the north the ceilings will drop to IFR later tonight. Sunday clouds are expected to clear in the morning in most areas. MKK



Marine
10 to 20 kt northerly winds will diminish this morning as a weak front brings southerly winds up to 20 kt to areas north of Cape Mendocino later this morning and into the afternoon. The short period wind driven waves will diminish through the day as well. The main swell moving into the waters this morning is around 5 feet at 9 seconds. A new swell hast started to move into the waters and currently it is around 2 feet at 14 seconds.

Sunday the northwest winds will return across the area as high pressure builds in. These will be slow to increase through Monday lingering around 10 to 20 Kt. These are expected to increase to around 20 to 25 kt on Tuesday and persist through Thursday. The wind driven waves associated with these winds are expected to peak around 6 to 9 feet by the middle of the week. In addition to the wind driven waves the two swells are expected to generally merge on Sunday. These will be around 8 feet at 12 seconds. These are expected to diminish slightly, but will generally persist through the week. MKK



EKA WATCHES/WARNINGS/ADVISORIES
CA...
Frost Advisory until 8 AM PDT this morning for CAZ107-108- 110-111-114.

NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory until 6 PM PDT this evening for PZZ455- 475.

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Albion
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Sat -- 01:00 AM PDT     5.53 feet High Tide
Sat -- 06:20 AM PDT     Sunrise
Sat -- 08:11 AM PDT     -0.72 feet Low Tide
Sat -- 08:23 AM PDT     Moonset
Sat -- 03:37 PM PDT     3.91 feet High Tide
Sat -- 07:39 PM PDT     3.17 feet Low Tide
Sat -- 08:05 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Albion, California, Tide feet

Arena Cove
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Sat -- 12:50 AM PDT     5.68 feet High Tide
Sat -- 06:21 AM PDT     Sunrise
Sat -- 08:23 AM PDT     -0.69 feet Low Tide
Sat -- 08:24 AM PDT     Moonset
Sat -- 03:27 PM PDT     3.73 feet High Tide
Sat -- 07:23 PM PDT     2.94 feet Low Tide
Sat -- 08:04 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Arena Cove, California, Tide feet

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