Tuesday, March2, 2021
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Marine Weather and Tides
Westhaven-Moonstone, CA

Version 3.4
NOTICE
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 6:46AMSunset 6:10PM Tuesday March 2, 2021 5:54 PM PST (01:54 UTC) Moonrise 10:28PMMoonset 8:56AM Illumination 81% Phase: Waning Gibbous; Moon at 19 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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PZZ450 Pt St George To Cape Mendocino Out 10 Nm- 223 Pm Pst Tue Mar 2 2021
.small craft advisory in effect through late tonight...
Tonight..N winds 5 to 15 kt. Waves nw 11 ft at 14 seconds.
Wed..NW winds 5 to 10 kt. Waves nw 8 ft at 13 seconds.
Wed night..S winds 5 to 10 kt...rising to 10 to 20 kt with gusts to around 30 kt. Waves nw 8 ft at 13 seconds...and nw 6 ft at 20 seconds.
Thu..S winds 15 to 25 kt. Waves sw 9 ft at 9 seconds...and nw 9 ft at 18 seconds.
Thu night..S winds 20 to 25 kt. Waves S 12 ft at 10 seconds... And nw 11 ft at 17 seconds.
Fri..S winds 10 to 15 kt. Waves sw 7 ft at 10 seconds...and W 11 ft at 16 seconds.
Sat..SW winds 5 kt. Waves W 10 ft at 14 seconds.
Sun..SW winds 5 to 10 kt. Waves W 17 ft at 18 seconds.
PZZ400 223 Pm Pst Tue Mar 2 2021
Synopsis for northern california waters..A new nw swell will continue to pick up today, reaching around 11 feet later this evening. An approaching front late this week will bring robust southerlies and chaotic seas heading into the weekend.


7 Day Forecast for Marine Location Near Westhaven-Moonstone, CA
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location: 41.05, -124.1     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 022300 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 300 PM PST Tue Mar 2 2021

SYNOPSIS. Dry weather, along with near-normal daytime and cool nighttime temperatures, will occur across northwest California through Wednesday. There is the potential for strong winds late Thursday and early Friday with rain moving in Thursday night and Friday morning. The potential for rain and mountain snow will continue into early next week.

DISCUSSION. An upper low off the S CA coast will gradually fill as it moves ENE. As this feature exits toward the rockies, a broader trough of low pressure will dig S over the E Pacific. Skies across the area have been mostly sunny this afternoon with just some lingering wisps of cirrus rotating around the NE periphery of the S CA upper low. Cold overnight temperatures are expected tonight with frost across portions of the North Coast, Mendocino, and Lake counties. A few of the normally colder locations may reach near or just below freezing again. For now, have just gone with another Frost Advisory for the aforementioned areas.

Dry weather is forecast to persist through mid-week. Thereafter, model guidance shows the cold upper trough over the E Pacific moving eastward across the West Coast Friday and Saturday. A period of moderate to locally heavy frontal rain will be possible Friday afternoon and evening. There are still precip timing and QPF total discrepancies among the long range models. It appears rainfall amounts of between 1 and 2 inches are likely for portions of the North Coast. However, there is the potential for more rainfall, particularly across Del Norte County. Pre-frontal advisory level southerly winds may occur across exposed ridges and coastal areas late Thursday and early Friday. Light mountain snow also appears possible during Saturday as a cold post-frontal mid- level airmass spreads east across the region. Periods of snow may continue across the mountains into early next week, with snow levels occasionally dropping to near 2000 feet. /SEC

AVIATION. At daybreak, most areas were VFR with interval high clouds moving across the Region. Patchy fog developed over a few inland river valleys, and CEC very briefly dipped into IFR due to CIG and HZ obstruction. Minor HZ obstructions expected to continue along the coast through the day. Stratus may develop along the coast this evening although there is room for some uncertainty since no coastal stratus was observed on Visual Satellite by mid- afternoon. Also, none was observed near coastal hills or Eel Delta; model data is showing no significant low level moisture advection/development. VFR and light winds will continue through the TAF period for inland areas. /TA

MARINE. Light northerly winds around 5 to 15 kt continue today, with a local max in the high teens developing off of Cape Mendocino late this afternoon. A mid period NW swell continues to fill in through tonight, when it should peak around 12 ft at 14 seconds, then decay through Wednesday.

A front is expected to approach the coast late this week, bringing a slow moving, wide and robust band of southerly winds starting early Thursday. These winds should efficiently build up short period southerly seas by Thursday night, with heights in the low to mid teens currently forecasted for the outer waters. Meanwhile, another slightly longer period 10 to 12 ft NW swell should arrive on Thursday and last through the weekend, bringing a chance of chaotic combined seas in the high teens to low 20's for Friday. /TDJ&EYS

EKA WATCHES/WARNINGS/ADVISORIES. CA . Frost Advisory from midnight tonight to 9 AM Wednesday for CAZ101-103-109>115.

NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 6 AM Wednesday for PZZ450-470. Small Craft Advisory from 6 PM this evening to noon Wednesday for PZZ455. Small Craft Advisory until noon Wednesday for PZZ475.

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

Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka

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
TDPC1 3 mi175 min 47°F
46244 - Humboldt Bay, North Spit, CA 17 mi149 min 50°F12 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 31 mi145 min N 14 G 18 51°F 51°F1012.7 hPa48°F
CECC1 - 9419750 - Crescent City, CA 48 mi163 min WNW 5.1 G 7 59°F 49°F1013.4 hPa

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Arcata / Eureka, Arcata Airport, CA4 mi62 minN 03.00 miFair with Haze52°F42°F69%1012.8 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24hrN4CalmE4E3E3E3SE3NE3CalmNE3CalmCalmE6CalmE5S4SE4NW5NW83NW5NW6NW4Calm
1 day agoN5E3E3CalmE3CalmE3CalmE3E4E4E5CalmCalmE4E3CalmSW4NW6NW9NW10W5CalmCalm
2 days agoN13
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N9NE8NE5N4CalmCalmNE4CalmCalmE5E3CalmE3E3Calm3NW4NW7NW7NW8NW14N11NW10

Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
Click for Map
Tue -- 01:34 AM PST     7.03 feet High Tide
Tue -- 06:48 AM PST     Sunrise
Tue -- 07:46 AM PST     0.77 feet Low Tide
Tue -- 08:56 AM PST     Moonset
Tue -- 01:49 PM PST     6.32 feet High Tide
Tue -- 06:09 PM PST     Sunset
Tue -- 07:51 PM PST     0.80 feet Low Tide
Tue -- 10:28 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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66.976.24.93.31.910.81.32.43.95.26.16.35.84.73.321.10.81.32.43.9

Tide / Current Tables for Arcata Wharf, Humboldt Bay, California
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Arcata Wharf
Click for Map
Tue -- 02:39 AM PST     7.19 feet High Tide
Tue -- 06:48 AM PST     Sunrise
Tue -- 08:56 AM PST     Moonset
Tue -- 08:56 AM PST     0.86 feet Low Tide
Tue -- 02:51 PM PST     6.45 feet High Tide
Tue -- 06:09 PM PST     Sunset
Tue -- 09:01 PM PST     0.83 feet Low Tide
Tue -- 10:28 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.66.177.16.55.33.72.31.20.91.32.43.95.36.26.4653.62.31.20.81.22.4

Weather Map
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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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