Sunrise 5:52 AM   Sunset 8:26 PM Moonrise 6:01 PM   Moonset 3:38 AM

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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 303 Am Pdt Tue May 21 2024
.hazardous seas warning in effect through this evening - .
Today - NW winds 20 to 30 kt. Waves nw 11 ft at 10 seconds - .and sw 3 ft at 16 seconds. Tonight - NW winds 20 to 30 kt. Waves nw 12 ft at 10 seconds - .and S 2 ft at 17 seconds. Wed - NW winds 15 to 25 kt with gusts to around 35 kt. Waves nw 8 ft at 7 seconds - .and sw 2 ft at 16 seconds. Wed night - N winds 20 to 25 kt. Waves nw 10 ft at 9 seconds - .and sw 2 ft at 16 seconds. Thu - NW winds 15 to 25 kt. Waves nw 9 ft at 9 seconds - .and sw 2 ft at 15 seconds. Fri - NW winds 10 to 20 kt. Waves nw 7 ft at 8 seconds - .and sw 2 ft at 15 seconds. Sat - NW winds 15 to 20 kt. Waves nw 7 ft at 8 seconds - .and S 2 ft at 14 seconds.

PZZ400 303 Am Pdt Tue May 21 2024
Synopsis for northern california waters - Gale force conditions are expected to persist across the southern outer waters and leeward of cape mendocino through Tuesday evening. Northerly winds will slowly diminish across northern waters as the surface pressure gradient briefly relaxes. Seas will remain steep and hazardous across the coastal waters through late this week with gale force gusts continuing over the southern outer waters.

FXUS66 KEKA 211213 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 513 AM PDT Tue May 21 2024

SYNOPSIS
Slightly below normal interior temperatures are expected through the weekend. Gusty northwest winds will persist today and Wednesday.

DISCUSSION
Dry weather with below normal interior temperatures is expected for the remainder of the week and into the weekend.
Early morning temperatures varied widely from the lower to mid 30's in a few colder valleys in Trinity, eastern Humboldt and northern Mendocino while sites in Lake were still in the upper 60's where N-NE winds have been steady through the night. Too much humidity and low cloud cover tonight (Tue Night) may mitigate the risk for frost. Drier conditions with clearer skies appear to re-develop tomorrow night (Wed night) and frost will once again be possible.

Slight warming is expected today for the interior; mid 70's to mid 80's are forecast. Coastal areas will remain cool and blustery and probably will not even break 60F. Wind gusts to 25-30 MPH are forecast. Surface pressure gradients may be become disrupted by the approach of a cold front from the NW late in the day, however looking at the wind profiles for CEC and ACV, 1000 to 1500 feet above ground level (AGL), reveals magnitudes around 25-32kt or 29-37mph this afternoon and early evening. GFS profiles with height are even more robust than the NAM12, with a NW speed max around 42-44kt or about 50 mph within 1000ft AGL. That may be a bit hot and heavy, but that has certainly been the case with multiple strong N-NW wind episodes this spring. HRRR means are generally around 25-30 mph for most areas, except at wind prone coastal headlands and ridges where speeds will most likely (>70% chance) exceed 40 mph. The wind speed max appears to shift south of Cape Mendocino on Wednesday as weakening front brings a shallow push of moist air and perhaps some light rain or drizzle to the North Coast. Behind the front pressure gradients tighten again and breezy/windy conditions return to the North Coast.

Another shortwave trough will move across the Pacific Northwest this weekend. This reinforcing shortwave trough will keep temperatures from warming up this weekend and may bring another bout of breezy/windy conditions. This shortwave trough appears to be dry too. Some coastal drizzle is possible (10% or less chance), but not worth adding to the forecast due to high certainty at this time. Warmer or near normal temperatures should begin to build back on days 6-7 (Sun-Mon).

AVIATION
Light offshore winds at ACV this morning may allow for scattered stratus to briefly develop in the Humboldt Bay area.
Otherwise, gusty northerly winds expected to develop again this afternoon for the coastal terminals, with HRRR indicating high probability for CEC to exceed 35 mph. Mid to high level clouds expected to drop into NorCal late this afternoon as an upper trough progresses east. Moist NW flow ahead of a weak surface front will encourage coastal stratus to return late tonight into early Wednesday - light accumulating drizzle is possible at CEC and ACV during the early morning hours. A pattern of nightly marine stratus is possible for the ladder half of the weak as the marine layer deepens.



MARINE
Winds will begin to diminish in the northern waters as gales gradually shift to the southern outer waters late today.
Short period seas will remain steep and hazardous in the outer waters through midweek, with the highest wave heights at 10-12 feet concentrated in the outer waters and lee of Cape Mendocino.
Winds and seas expected to fall near or below advisory level by late this week as high pressure builds offshore.



EKA WATCHES/WARNINGS/ADVISORIES
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Gale Warning until 3 AM PDT early this morning for Pzz450- 455.

Small Craft Advisory until 9 PM PDT this evening for Pzz450.

Hazardous Seas Warning until 9 PM PDT this evening for Pzz450.

Gale Warning until 9 AM PDT this morning for Pzz450.

Small Craft Advisory from 9 AM this morning to 9 PM PDT this evening for PZZ470.

Gale Warning until 9 PM PDT this evening for PZZ475.

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Albion
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Tue -- 04:38 AM PDT     Moonset
Tue -- 04:48 AM PDT     -0.20 feet Low Tide
Tue -- 05:56 AM PDT     Sunrise
Tue -- 11:29 AM PDT     3.95 feet High Tide
Tue -- 04:14 PM PDT     2.34 feet Low Tide
Tue -- 07:01 PM PDT     Moonrise
Tue -- 08:27 PM PDT     Sunset
Tue -- 10:19 PM PDT     5.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Albion, California, Tide feet

Point Cabrillo
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Tue -- 01:45 AM PDT     -1.27 knots Max Ebb
Tue -- 04:38 AM PDT     Moonset
Tue -- 05:41 AM PDT     0.00 knots Slack
Tue -- 05:56 AM PDT     Sunrise
Tue -- 08:43 AM PDT     1.01 knots Max Flood
Tue -- 11:55 AM PDT     -0.00 knots Slack
Tue -- 02:13 PM PDT     -0.69 knots Max Ebb
Tue -- 05:28 PM PDT     0.00 knots Slack
Tue -- 07:02 PM PDT     Moonrise
Tue -- 08:17 PM PDT     0.77 knots Max Flood
Tue -- 08:28 PM PDT     Sunset
Tue -- 11:03 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Point Cabrillo, California Current, knots

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