Thursday, January20, 2022
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Marine Weather and Tides
Myrtle, 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 7:34AMSunset 5:21PM Thursday January 20, 2022 3:11 PM PST (23:11 UTC) Moonrise 8:12PMMoonset 9:34AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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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PZZ415 Expires:202111061030;;385745 fzus76 keka 060940 mwseka marine weather statement national weather service eureka ca 240 am pdt Sat nov 6 2021 pzz410-415-450-061030- 240 am pdt Sat nov 6 2021 a marine weather statement has been issued for the following areas... Coastal waters from pt. St. George to cape mendocino ca out 10 nm...humboldt bay...humboldt bay bar... At 238 am pdt, doppler radar indicated showers, capable of producing winds to around 30 knots. These showers were located along a line extending from near trinidad to 6 nm west of cape mendocino, moving east at 10 knots. Precautionary/preparedness actions... Water spouts are possible along with stronger...locally higher waves...and possible lightning strikes. Boaters should seek safe harbor immediately until these storms pass. Mariners can expect gusty winds to around 30 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4092 12414 4070 12426 4071 12426 4061 12433 4044 12441 4045 12464 4098 12433 4105 12413
PZZ400 300 Pm Pst Thu Jan 20 2022
Synopsis for northern california waters..Small craft northerly winds and hazardous short period seas will occur across the coastal waters today into Friday. In addition, a period of gale force gusts is expected Friday afternoon. Otherwise, a mid-period swell will linger through the remainder of the week.


7 Day Forecast for Marine Location Near Myrtle, CA
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location: 40.8, -124.14     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 202255 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 255 PM PST Thu Jan 20 2022

SYNOPSIS. The Humboldt and Del Norte coast will see a general trend of less marine influence through the weekend but areas of low clouds and fog are still likely tonight. Elsewhere expect increasing sunshine with warmer afternoon temperatures through the weekend as weak offshore flow occurs.

DISCUSSION. Pictures from space showing virtually cloudless skies across NW CA with the exception of some light high Cirrus and some patchy marine stratus along the North Coast. This is in response to relatively strong high pressure aloft however there is a low level cloud bank offshore which may promote fog and low clouds to settle back in tonight, particularly around Humboldt Bay and the Eel River Delta. Otherwise, as the low-level flow veers to northeasterly and offshore, the boundary layer will begin to dry out, eradicating any patches of leftover coastal stratus and fog Friday morning. Strong surface high pressure will shift eastward from the Pacific, across the Pacific Northwest, spilling over into the Great Basin by Saturday. Thermal troughing should still hang close enough to the coast on Friday to keep a strong pressure gradient over offshore portions of the coastal waters, with some northerly breezes at the beaches in the afternoon. That might keep temperatures from warming up too much there, but otherwise expect 60s away from the water, and even some 70s possible in southern Mendocino County valleys. The thermal trough will shift offshore Friday night, with strengthening northeast to east winds over the ridgetops from Friday afternoon into Saturday morning, especially around Lake County but also around South Fork Mountain, the King Range, and some of the other more prominent peaks to the north. Local gusts 30 to 40 mph will be achievable in those areas. Did not consider a Wind Advisory for those areas as the winds will tend to be elevated and focused on higher and localized ridge tops where there are no 'populated communities'. Elsewhere through the valleys and along the coast, drier air and radiational cooling will allow decoupling from any breezy winds Friday night and Saturday morning, with cool morning lows under clear skies. That trend will continue through the weekend, but expect much lighter winds area- wide from Saturday afternoon onward. Offshore flow and an amplifying upper ridge aloft along the West Coast will allow for sunny skies and warm afternoon temperatures even at the coast through the weekend. As the offshore thermal trough collapses and redevelops over land early next week, there should at least be a tendency for diurnal onshore flow that will keep the coast a little cooler. After this weekend's offshore flow, the airmass will still be quite dry, but eventually the onshore winds airmass modification may allow for marine layer stratus development along the coast next week. Otherwise, dry weather is essentially assured to continue through the weekend and probably all of next week. There continue to be suggestions from the long range guidance that the pattern will begin to change around next weekend or early February, as the persistent upper ridge near the West Coast retrogrades farther to the west, allowing for a cold upper trough to develop around the Gulf of Alaska. That should eventually try to send colder and wetter weather our way.

AVIATION. A stubborn marine layer still lingers along the coast of Northern California. So far, CEC has been alternating between VFR and MVFR, while ACV has been alternating between VFR and IFR due to the low clouds moving on and off shore. However, the marine layer is projected to push ashore by this evening bringing with it low clouds and potentially fog. By tomorrow morning, the marine layer will begin to clear out of the coastal areas as the high pressure system off the Pacific Northwest exerts its influence on Northern California. Offshore flow will help clear out the low clouds as well, especially around Del Norte county early in the morning. By late morning, low clouds should clear out around Humboldt Bay as well. The high pressure system will also cause stronger northerly winds to inch closer to the coast. Late this afternoon and into the evening, winds are projected to pick up around both CEC and ACV. Gusty northerly winds will continue around the coastal terminals into tomorrow afternoon. UKI will have VFR conditions throughout today and tomorrow.

MARINE. A high pressure system will continue to dominate the Northeastern Pacific throughout the weekend. Due to the high pressure system pushing eastward, northerly winds will continue to increase throughout the southern coastal waters, especially the southern outer waters initially. Winds will be more of a strong breeze right at Cape Mendocino as the northerly winds whip around the cape. Strong northerly breezes are expected to propagate into the northern outer waters this afternoon. Throughout Friday, gale force gusts are expected in the outer waters. Throughout Saturday, a low pressure system is projected to develop along the Northern California coast. This will cause the winds to decline into Sunday. Light breezes will dominate the coastal waters going into next week.

Seas continue to build throughout today as the northerly winds increase. Currently, a long period westerly swell is building throughout the coastal waters. By Friday morning, sea heights are expected to build as a result of the combined wind waves and swell. Wave heights are anticipated to be between 10 to 12 feet by Friday afternoon. Sea heights will begin to drop Saturday morning and continue to fall until Sunday afternoon when yet another long period westerly swell begins to push into the coastal waters.

EKA WATCHES/WARNINGS/ADVISORIES. CA . None. NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 2 PM PST Friday for PZZ450.

Small Craft Advisory until 6 AM PST Friday for PZZ470.

Gale Warning from 6 AM to 2 PM PST Friday for PZZ470-475.

Small Craft Advisory until 10 AM PST Friday for PZZ455.

Small Craft Advisory until 6 AM PST Friday 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
HBXC1 3 mi132 min 51°F
HBYC1 - 9418767 - North Spit, CA 5 mi96 min 51°F1029.9 hPa
NJLC1 6 mi108 min N 7G8.9 49°F
46244 - Humboldt Bay, North Spit, CA 13 mi46 min 52°F4 ft
TDPC1 18 mi72 min 51°F
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi32 min N 14G18 52°F 52°F1028.8 hPa51°F
46213 - Cape Mendocino, CA (094) 47 mi46 min 53°F5 ft

Wind History for North Spit, Humboldt Bay, CA
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Last 24 hr
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Arcata / Eureka, Arcata Airport, CA13 mi2.3 hrsNW 1110.00 miFair54°F49°F83%1029.9 hPa
Fortuna Rohnerville Airport, CA17 mi2.4 hrsWNW 1210.00 miFair54°F54°F100%1029.1 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24 hrNW60SE4W300SE30E4SE4W4E5E4000SE7E30SE53NW11NW12NW14
G20
1 day ago0W3E40000E3000E30E30000W4W3NW430NW6
2 days agoNW50000N30N40E30NE3E400E3E4SE4E4W5N5NW40W5

Tide / Current Tables for Eureka Slough Bridge, Humboldt Bay, California
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Eureka Slough Bridge
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Thu -- 02:37 AM PST     6.13 feet High Tide
Thu -- 07:11 AM PST     3.21 feet Low Tide
Thu -- 07:36 AM PST     Sunrise
Thu -- 09:34 AM PST     Moonset
Thu -- 01:13 PM PST     7.59 feet High Tide
Thu -- 05:19 PM PST     Sunset
Thu -- 07:59 PM PST     -0.56 feet Low Tide
Thu -- 08:11 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Eureka Slough Bridge, Humboldt Bay, California, Tide feet
12
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4.3
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5.4
2
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6
3
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6.1
4
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5.5
5
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4.6
6
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3.7
7
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3.2
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3.4
9
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4.1
10
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5.1
11
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6.3
12
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7.1
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7.6
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7.4
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6.4
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4.9
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3
6
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1.2
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-0.1
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-0.6
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-0.2
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0.9
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2.3


Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Thu -- 01:56 AM PST     4.92 feet High Tide
Thu -- 07:06 AM PST     3.15 feet Low Tide
Thu -- 07:36 AM PST     Sunrise
Thu -- 09:34 AM PST     Moonset
Thu -- 12:32 PM PST     6.26 feet High Tide
Thu -- 05:20 PM PST     Sunset
Thu -- 07:54 PM PST     -0.55 feet Low Tide
Thu -- 08:12 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Humboldt Bay Entrance, California, Tide feet
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3.9
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3.2
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4.8
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5.7
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6.2
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6.2
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5.7
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4.7
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3.4
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1.9
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0.6
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-0.3
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-0.5
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2.3


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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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