Saturday, October16, 2021
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Marine Weather and Tides
Mendocino, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:22AMSunset 6:33PM Saturday October 16, 2021 1:58 AM PDT (08:58 UTC) Moonrise 4:13PMMoonset 2:16AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 days in cycle
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.
Marine Forecasts
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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 837 Pm Pdt Fri Oct 15 2021
Tonight..N winds 5 to 10 kt. Waves N 5 ft at 6 seconds...and nw 7 ft at 14 seconds.
Sat..NW winds 5 to 10 kt. Waves N 4 ft at 5 seconds...and nw 6 ft at 13 seconds.
Sat night..SW winds 5 kt. Waves nw 6 ft at 14 seconds.
Sun..S winds 5 to 10 kt. Waves nw 5 ft at 13 seconds.
Sun night..NW winds 5 to 15 kt. Waves nw 3 ft at 5 seconds... And nw 6 ft at 13 seconds.
Mon..N winds 5 kt. Waves nw 9 ft at 12 seconds.
Tue..SE winds 10 to 20 kt. Waves S 4 ft at 6 seconds...and W 6 ft at 14 seconds.
Wed..SE winds 10 to 15 kt. Waves W 7 ft at 11 seconds...and nw 7 ft at 14 seconds.
PZZ400 837 Pm Pdt Fri Oct 15 2021
Synopsis for northern california waters..Northerly winds and short period seas will continue to gradually subside across the southern waters this evening. Winds will be light across all waters on Saturday. That will be followed by south winds occurring ahead of a cold front during Sunday morning, followed by gusty north winds occurring behind the front Sunday afternoon and evening. Later next week, gale force southerlies will be possible Tuesday and Wednesday.


7 Day Forecast for Marine Location Near Mendocino, CA
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location: 39.3, -123.8     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 152136 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 236 PM PDT Fri Oct 15 2021

SYNOPSIS. Mild afternoon temperatures and dry weather will occur for one more day on Saturday. Thereafter, rain will spread east across the region during Sunday. Another period of dry weather is expected on Monday, followed by additional rainfall during Tuesday and Wednesday.

DISCUSSION. A broad low amplitude upper level ridge was shifting east across the region this afternoon. Mostly clear skies were associated with the ridge, and inland valley temperatures have responded by warming into the 70s and 80s . while cooler onshore flow occurring in the vicinity of the coast favored highs in the upper 50s to 60s. Temperatures across inland valleys tonight are not forecast to be as cold as the past couple of nights, and that will preclude frost/freeze concerns. Otherwise, marine stratus and patchy fog will be probable near the Humboldt/Del Norte coast.

After another mild day on Saturday, a pattern change associated with a digging upper level trough is forecast to occur over the NERN PAC. A cold front associated with the trough will advance east-southeast toward NWRN CA during Sunday morning . with south winds locally gusting from 15 to 30 mph across exposed ridges. Rain will then move onshore across Del Norte and Humboldt Counties during midday Sunday, followed by rainfall entering Trinity County as well as Lake/Mendocino Counties Sunday afternoon and evening. Rainfall totals will generally range from 0.5-1.0 inch in Del Norte County to less than a quarter of an inch in Lake and southern Mendocino Counties as well as far eastern Trinity County.

After the rain episode on Sunday, drier weather will occur across the region Monday as a shortwave ridge progresses east over the west coast. Another period of frontal rains, and pre-frontal gusty southerlies is then expected Tuesday afternoon and night, which will be followed by post frontal showers and maybe even a thunderstorm during Wednesday. Another frontal passage will be possible Friday and Saturday, which would favor additional rainfall. However, uncertainty remains high with that late week scenario due to differing model solutions related to the eastward progression of the front.

Garner

AVIATION. As expected, coastal stratus made a reappearance last night, with some low ceilings and fog along the coast, particularly along the N and central Humboldt County coast. A patch of stratus lingers just offshore as of this writing, although land areas are mostly clear. Expect coastal stratus to expand and spread inland this evening and overnight N of Cape Mendocino as the marine layer deepens and the low-level inversion strengthens a bit. This should result in coastal clouds lingering for longer along the coast Saturday morning. The marine layer still looks to be too shallow for any low-level moisture to make it to KUKI from the W, and the HRRR doesn't indicated any stratus making it up the Russian River Valley from the S. Winds will be light. /SEC

MARINE. High pressure will be shunted south toward the region during the next 24 hours, and will aid in weakening winds across the coastal waters. A frontal boundary will then advance southeast across the area Sunday. South winds ahead of the front will become moderately gusty out of the north behind the front. Thereafter, another period of weak winds is expected to occur on Monday, followed by possible gale force southerlies during Tuesday and Wednesday.

Garner

EKA WATCHES/WARNINGS/ADVISORIES. CA . None. NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 11 PM PDT this evening for PZZ475.



Visit us at https://www.weather.gov/eureka

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For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 10 mi48 min N 7.8G9.7 53°F 54°F1019.4 hPa52°F
ANVC1 - 9416841 - Arena Cove, CA 27 mi64 min E 8G9.9 47°F 1018.5 hPa

Wind History for Arena Cove, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA34 mi62 minN 010.00 miFair51°F37°F59%1019.3 hPa

Link to 5 minute data for KUKI

Wind History from UKI (wind in knots)
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Last 24hr000000000000NE30E30NW300NW50000
1 day ago0000000000000N4NW8NW7NW3S4000000
2 days agoN300000SE30036N10
G16
NW7NW9NW96N7N500S30W30

Tide / Current Tables for Mendocino, Mendocino Bay, California
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Mendocino
Click for Map
Sat -- 02:42 AM PDT     0.08 feet Low Tide
Sat -- 03:16 AM PDT     Moonset
Sat -- 07:26 AM PDT     Sunrise
Sat -- 09:29 AM PDT     5.39 feet High Tide
Sat -- 03:16 PM PDT     1.88 feet Low Tide
Sat -- 05:13 PM PDT     Moonrise
Sat -- 06:34 PM PDT     Sunset
Sat -- 08:57 PM PDT     5.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.8
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0.8
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Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Sat -- 03:16 AM PDT     Moonset
Sat -- 03:40 AM PDT     0.00 knots Slack
Sat -- 06:54 AM PDT     1.06 knots Max Flood
Sat -- 07:26 AM PDT     Sunrise
Sat -- 09:53 AM PDT     -0.00 knots Slack
Sat -- 12:54 PM PDT     -0.81 knots Max Ebb
Sat -- 04:04 PM PDT     0.00 knots Slack
Sat -- 05:13 PM PDT     Moonrise
Sat -- 06:34 PM PDT     Sunset
Sat -- 06:59 PM PDT     0.82 knots Max Flood
Sat -- 09:38 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.1
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Weather Map
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GEOS Local Image of CentralWestCoast    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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