Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Fields Landing, 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 7:18AMSunset 7:29PM Wednesday March 20, 2019 2:47 AM PDT (09:47 UTC) Moonrise 6:20PMMoonset 6:30AM Illumination 99% Phase: Full Moon; Moon at 14 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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PZZ410 227 pm pst Fri feb 15 2019 a marine weather statement has been issued for the following areas... Waters from pt. St. George to cape mendocino ca out 60 nm... Humboldt bay bar... At 222 pm pst, doppler radar indicated lines of showers and isolated Thunderstorms over the waters north of cape mendocino, capable of producing winds to around 30 knots and small hail. This activity was moving east-northeast at 30 knots. Precautionary/preparedness actions... Water spouts are possible along with stronger Thunderstorms... Locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4174 12417 4154 12405 4153 12405 4154 12408 4124 12410 4114 12416 4089 12413 4084 12418 4086 12410 4082 12410 4065 12431 4060 12418 4062 12424 4063 12432 4045 12440 4047 12579 4129 12555 4168 12568 4178 12579
PZZ400 233 Am Pdt Wed Mar 20 2019
Synopsis for northern california waters..Southerlies will briefly strengthen today south of cape mendocino as a weak low pressure system moves northward. Otherwise, a westerly swell train will continue through the week.


7 Day Forecast for Marine Location Near Fields Landing, CA
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location: 40.77, -124.25     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 192233
afdeka
area forecast discussion
national weather service eureka ca
333 pm pdt Tue mar 19 2019

Synopsis Mostly dry conditions with the exception of a few
isolated showers this evening. More widespread showers are
expected overnight and tomorrow morning, with continued scattered
showers in places much of the day Wednesday. Widespread moderate
rain is expected again Friday into early Saturday, with dry
conditions the remainder of the weekend. More rain is likely next
week.

Discussion A frontal boundary is approaching the area. This may
bring a few showers to the inland areas this evening. There is
also a slight chance for thunderstorms this evening, but
confidence is low on this. Shower coverage will increase later
tonight. These showers will continue through the day on Wednesday.

Snow levels will remain over 5,000 feet. Rainfall amounts are
generally expected to be less than a quarter of an inch. There is
an outside chance of thunderstorms Wednesday afternoon, but
instability looked too weak to add thunder to the forecast.

Wednesday night models are now slower with the trough moving
through and out of there area. This is a complicated but weak flow
pattern. Small shortwaves will moving through the flow will
impact when the showers are heavier and lighter and the timing of
this is difficult to pin down. Thursday afternoon it looks like
there will be some showers, at least over the interior areas.

Thursday a brief period of high pressure is expected to build into
the area. This should help diminish showers Thursday afternoon.

This will be shortlived however, the next system will spread
clouds across the area Thursday night brining rain on Friday. The
current operational models have the rain coming in fairly early
Friday morning, but the general model consensus has it coming in
mid morning so confidence is low on the exact timing. Rainfall
with this system is expected to range from a half inch to an inch.

Snow levels will remain above 4,500 feet with this event as well.

Saturday the rain is expected to come to an end as high pressure
starts to build into the area. Saturday it looks like showers will
redevelop over the interior in the afternoon. The models are
showing some instability, but it looks like the better instability
is in the morning and will not coincide with the peak heating of
the day. Sunday there is better agreement that there will be
clear skies and dry conditions across the area. Frost is possible
in the morning, although confidence is low on how widespread it
will be.

Sunday into Monday the next frontal boundary starts to impact the
area. The models are still struggling with the exact timing of
this front. The operational GFS is one of the fastest solutions
bringing rain in Sunday. There is general agreement in the
ensembles that something in the neighborhood of 1 to 2 inches is
expected with the heaviest rain Monday or Monday night. Currently
snow levels are expected to be over 4,500 feet. Mkk

Aviation East to southeast winds ahead of the front have
lifted ceilings across the area and conditions areVFR. A few
showers are possible this evening over the inland areas. Later
tonight as this frontal boundary slowly moves north and east
showers will spread across the area. This may bring down CIGS and
vis slightly. Confidence is low on the timing of these showers.

Mkk

Marine A long period westerly swell has been a bit slow to
arrive today, but will continue to build through tonight and hold
through Thursday. Another larger west swell is expected to replace
it by Friday afternoon and continue through the weekend. Locally,
short period southerly seas are expected to rise tomorrow morning in
response to accelerating southerly winds driven by a system moving
northward along the coast. More short period southerly seas are
expected later in the week as well as another front moves over the
region, however confidence on the timing of this is currently low.

Relatively calm winds are expected tonight before southerlies
accelerate along the coast south of CAPE mendocino as a system
moves northward along the coast. These winds will be short-lived
but dynamic, accelerating and decelerating quickly as low moves
north along the coast. After these calm winds are expected to stay
light and southerly before another front approaches the coast on
Friday. Tdj

Eka watches warnings advisories
Ca... Beach hazards statement until 7 pm pdt this evening for caz101-
103-104-109.

Northwest california coastal waters...

small craft advisory from 10 am to 4 pm pdt Wednesday
for pzz455.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 2 mi71 min S 6 G 8.9 53°F 52°F1010.6 hPa
46244 - Humboldt Bay, North Spit, CA 10 mi47 min 53°F8 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 15 mi27 min S 7.8 G 9.7 53°F1010.9 hPa
46213 - Cape Mendocino, CA (094) 42 mi47 min 53°F8 ft

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fortuna Rohnerville Airport, CA16 mi72 minSE 310.00 miA Few Clouds45°F44°F100%1010.8 hPa
Arcata / Eureka, Arcata Airport, CA17 mi54 minSSE 610.00 miMostly Cloudy50°F48°F93%1011.2 hPa

Wind History from FOT (wind in knots)
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Last 24hrSE5SE8SE6SE5CalmCalmCalmCalmNW3N3NW3NW7NW12NW8W9CalmCalmCalmS4SE3SE5S3CalmSE6
1 day agoSE8SE11SE9SE9SE9SE9S5S3S3NW6NW9NW11NW11W12NW11NW4NW6CalmCalmCalmCalmSE4SE5S5
2 days agoSE5SE7N3CalmSE5SE10SE7S8CalmNW8NW10NW11NW13W9NW8NW4NW4S4SE8S7N3N5SE4SE8

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Wed -- 12:12 AM PDT     6.05 feet High Tide
Wed -- 06:09 AM PDT     1.24 feet Low Tide
Wed -- 07:20 AM PDT     Sunrise
Wed -- 07:29 AM PDT     Moonset
Wed -- 11:59 AM PDT     6.86 feet High Tide
Wed -- 06:41 PM PDT     -0.61 feet Low Tide
Wed -- 06:43 PM PDT     Full Moon
Wed -- 07:20 PM PDT     Moonrise
Wed -- 07:29 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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65.95.13.92.71.71.21.52.53.95.46.56.96.55.43.82.10.5-0.4-0.60.21.73.45

Tide / Current Tables for Hookton Slough, Humboldt Bay, California
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Hookton Slough
Click for Map
Wed -- 12:36 AM PDT     6.55 feet High Tide
Wed -- 06:27 AM PDT     1.24 feet Low Tide
Wed -- 07:20 AM PDT     Sunrise
Wed -- 07:29 AM PDT     Moonset
Wed -- 12:23 PM PDT     7.36 feet High Tide
Wed -- 06:43 PM PDT     Full Moon
Wed -- 06:59 PM PDT     -0.61 feet Low Tide
Wed -- 07:20 PM PDT     Moonrise
Wed -- 07:28 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.46.55.94.73.321.31.42.23.65.26.67.37.26.34.82.91.1-0.2-0.6-0.11.234.9

Weather Map and Satellite Images
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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 (5,6,7,8)
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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.