Friday, May24, 2019 L-36.com


Marine Weather and Tides
Big Lagoon, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:49AMSunset 8:36PM Friday May 24, 2019 9:49 AM PDT (16:49 UTC) Moonrise 12:06AMMoonset 9:58AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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- 812 Am Pdt Fri May 24 2019
.small craft advisory in effect from 5 pm pdt this afternoon through late Saturday night...
Today..N winds 10 to 20 kt. Waves nw 7 ft at 8 seconds...and W 2 ft at 14 seconds.
Tonight..N winds 15 to 25 kt. Waves nw 10 ft at 9 seconds.
Sat..N winds 15 to 25 kt. Waves nw 10 ft at 9 seconds...and sw 2 ft at 17 seconds.
Sat night..NW winds 15 to 20 kt. Waves nw 9 ft at 8 seconds.
Sun..NW winds 5 to 15 kt. Waves nw 7 ft at 8 seconds...and sw 2 ft at 16 seconds.
Mon..NW winds 5 kt. Waves nw 5 ft at 15 seconds.
Tue..NW winds 10 kt. Waves nw 4 ft at 7 seconds...and W 3 ft at 18 seconds.
PZZ400 812 Am Pdt Fri May 24 2019
Synopsis for northern california waters..Winds will ease briefly this morning, and then quickly strengthen back to near gale force gusts tonight and Saturday. Winds will start to trend down on Sunday, however seas will remain hazardous. Ocean conditions will improve much more significantly early next week.


7 Day Forecast for Marine Location Near Big Lagoon, CA
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location: 41.17, -124.32     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 241149
afdeka
area forecast discussion
national weather service eureka ca
449 am pdt Fri may 24 2019

Synopsis While mostly dry conditions can be expected in most
areas today, isolated showers and perhaps a thunderstorm or two
will be possible across eastern trinity and mendocino counties
this afternoon and evening. Even more showers are expected late
Saturday through Sunday across mainly interior areas, with
perhaps another round of isolated thunderstorms possible across
interior mountains Monday afternoon.

Discussion Another similarly mild and mostly dry day can be
expected for most areas of northwest california Friday, as the
region remains within a regime of northerly flow. However, this
will not be entirely true of all places, as a fast moving but weak
upper level system approaching from the north will begin to make
its presence known. Modest cooling aloft from this system may
result in some top-down destabilization across interior areas this
afternoon, perhaps enough to allow for isolated to scattered
shower and weak thunderstorm initiation along and east of the
trinity mendocino county line. Despite this, most areas in our
four counties (del norte, humboldt, trinity and mendocino) will
remain dry as these showers are expected to move toward the
southeast and away from the area shortly after forming. This
system will quickly sweep through the area overnight tonight, and
temperatures Saturday will likely be 4 to 8 degrees cooler in its
wake.

Dry conditions will again be expected for most of the day
Saturday, but like Friday this will not be true of all areas as
yet another fast moving low pressure system will rapidly approach
the area from the north. However, this next system will be
slightly stronger than its predecessor, and is expected to produce
more widespread showers across much of the area as it quickly
sweeps through from late Saturday afternoon through Sunday
morning. These showers will be heaviest and more concentrated in
interior areas, but a few light showers can't be ruled out along
the redwood coast as well. Shower coverage should diminish late
Sunday morning as the low quickly exits the region to the
southeast, but some weak showers may redevelop across interior
mountains in the afternoon and evening with perhaps widespread
overnight drizzle along the coast through Monday morning.

For much of the next work week a gradual warming trend can be
expected, although this will be a somewhat muted warming trend as
the upper level pattern will remain somewhat settled. While most
areas will remain dry through the end of the week, repeated
chances for isolated to scattered afternoon showers will be
possible almost every day of the week, mostly across the mountain
ranges of eastern trinity and northeast mendocino counties. This
includes memorial day afternoon, when a few isolated thunderstorms
will be possible as well.

A final note: those planning outdoor activities in the interior
mountains over this holiday weekend should remain aware of
expected weather conditions, as showers will be possible each day
at various times through Monday, with isolated chances for
lightning as well. Brc

Aviation Mostly ifr conditions prevailed along the coast
during the overnight period. Early morning satellite imagery
depicted marine stratus blanketed along the coast north of cape
mendocino, with a surge of stratus currently pushing up the
mendocino coast. MVFR conditions are expected to return at both
coastal terminals by this afternoon. Low clouds developed
overnight across portions of the interior and are expected to
dissipate by mid-morning. A surge of low clouds impacted kuki
overnight, dropping conditions fromVFR to ifr early this morning.

Expect conditions to improve at kuki by around 15 to 16z.

Otherwise, gusty conditions are expected to develop along the
coast by this afternoon and evening. Additionally, gusty
conditions may develop at kuki late tonight.

Marine Winds will increase again later today and remain
elevated through Sunday. Though, winds are expected to remain
relatively light in the vicinity of humboldt bay through this
afternoon before increasing this evening. Gusts to gale force will
be possible across mainly the outer waters, with strongest gusts
expected to be in the southern outer waters. As a result, issued a
gale warning for this zone. The southern inner and northern outer
zones will need to be monitored, but the overall coverage for
gale force gusts appears to be lacking at this time. Regardless,
steep, short-period seas will rebuild given the gusty conditions.

Otherwise, winds and seas are forecast to subside beginning
Monday.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory until 8 am pdt this morning for pzz450-455.

Small craft advisory from 5 pm this afternoon to 5 am pdt Sunday
for pzz450-455.

Small craft advisory until 5 am pdt Sunday for pzz470.

Small craft advisory until 5 am pdt Saturday for pzz475.

Gale warning from 5 am Saturday to 5 am pdt Sunday for pzz475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 28 mi74 min 55°F1017.4 hPa
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 34 mi40 min N 16 G 21 54°F1018.5 hPa
CECC1 - 9419750 - Crescent City, CA 40 mi38 min W 4.1 G 5.1 53°F 53°F1018 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, CA17 mi57 minS 510.00 miOvercast54°F52°F93%1017.7 hPa

Wind History from ACV (wind in knots)
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NW17NW15NW10NW12NW10--NW5NW5N6N3NW3CalmCalmNW4NW4SE3SW3SE5S5
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W10W8W7W6W5NW5W3N10N3N4NE3CalmCalm3CalmSE3CalmN9

Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
Click for Map
Fri -- 01:04 AM PDT     Moonrise
Fri -- 03:25 AM PDT     5.49 feet High Tide
Fri -- 05:51 AM PDT     Sunrise
Fri -- 10:39 AM PDT     -0.13 feet Low Tide
Fri -- 10:58 AM PDT     Moonset
Fri -- 05:47 PM PDT     4.94 feet High Tide
Fri -- 08:36 PM PDT     Sunset
Fri -- 10:58 PM PDT     3.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.94.55.15.55.44.942.81.60.6-0-0.10.31.22.33.44.34.84.94.74.23.73.43.2

Tide / Current Tables for Arcata Wharf, Humboldt Bay, California
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Arcata Wharf
Click for Map
Fri -- 01:04 AM PDT     Moonrise
Fri -- 04:21 AM PDT     6.30 feet High Tide
Fri -- 05:51 AM PDT     Sunrise
Fri -- 10:58 AM PDT     Moonset
Fri -- 11:46 AM PDT     0.21 feet Low Tide
Fri -- 06:57 PM PDT     5.54 feet High Tide
Fri -- 08:35 PM PDT     Sunset
Fri -- 11:56 PM PDT     3.76 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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44.55.35.96.36.25.74.83.62.31.10.40.20.71.62.73.84.85.35.55.34.94.33.9

Weather Map and Satellite Images
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wmap_P
GOES Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Eureka, CA (12,3,4,5)
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Ground Weather Radar Station Eureka, CA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.