Wednesday, June20, 2018 L-36.com


Marine Weather and Tides
Big Lagoon, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:42AMSunset 8:53PM Wednesday June 20, 2018 12:06 PM PDT (19:06 UTC) Moonrise 12:38PMMoonset 12:37AM Illumination 49% Phase: First Quarter Moon; Moon at 7 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- 817 Am Pdt Wed Jun 20 2018
Today..NW winds 5 kt. Waves nw 3 ft at 5 seconds...and W 4 ft at 11 seconds.
Tonight..NW winds 5 kt. Waves nw 3 ft at 4 seconds...and W 3 ft at 11 seconds. Patchy fog.
Thu..NW winds 5 to 10 kt. Waves nw 3 ft at 4 seconds...and W 3 ft at 11 seconds. Patchy fog.
Thu night..N winds 5 to 10 kt. Waves nw 4 ft at 5 seconds... And nw 2 ft at 10 seconds.
Fri..N winds 10 to 20 kt. Waves nw 7 ft at 8 seconds.
Sat..N winds 10 to 20 kt. Waves nw 9 ft at 9 seconds.
Sun..NW winds 5 to 15 kt. Waves nw 7 ft at 7 seconds.
PZZ400 817 Am Pdt Wed Jun 20 2018
Synopsis for northern california waters..High pressure will continue to build toward the west coast, N winds will gradually increase through the end of the week. Gale force conditions along with steep and hazardous seas will be possible by this weekend.

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 201100
afdeka
area forecast discussion
national weather service eureka ca
400 am pdt Wed jun 20 2018

Synopsis Warm and dry conditions will persist across inland
areas for the foreseeable future, with more notably hot
conditions Friday through Sunday. An isolated thunderstorm will be
possible in far northeast trinity county late this afternoon.

Marine clouds will persist along the coast through Friday
morning, and very little Sun can be expected this afternoon. More
sun is expected along the coast Friday and beyond.

Discussion
Coast A strong marine layer inversion continues to bring
widespread stratus and periodic drizzle along much of the coast
overnight tonight... Generally reaching up to around 2000 to 2500
feet along coastal ridges. Through the day today, a passing upper
level disturbance will likely help to deepen the marine layer a
bit, but the inversion itself will remain strong and this will
limit the amount of clearing that takes place during the afternoon
along the coast. All that is to say that the coastal lowlands
will likely remain cloudy for the majority of the day, aside from
a few pockets of Sun here and there. Widespread marine clouds will
persist through at least Friday morning, with perhaps a few more
breaks in the clouds during the afternoon Thursday.

Friday afternoon through the weekend... A ridge of high pressure
will help to shrink the depth of the marine layer, while
increasing northerly winds should help to clear out some of the
marine layer clouds. As a result, increasing Sun can be expected
along the coast Friday and beyond, with slightly warmer
temperatures as well. This will be especially true Saturday, when
temperatures may approach 70 degrees in the coastal lowlands.

Inland Another warm and dry day can be expected across most
interior areas, again with afternoon temperatures likely to reach
into the upper 80s to low 90s across interior valleys. However,
the lone exception in this region may be the far northeastern
corner of trinity county, as a brief thunderstorm or two will be
possible during the later afternoon. Instability and wind shear
will support the development of thunderstorms in this
area; however, storms will likely quickly move to the north and
into siskiyou county before they become particularly strong. In
fact, it is more likely that storms initiate farther to the north
in siskiyou county anyways, completely missing trinity county
altogether. In any case, should a storm develop there, cloud to
ground lightning and small hail will be possible for a brief
period.

Otherwise, the primary item of interest for the next several days
will be heat, as upper level high pressure will quickly build into
the region Thursday and beyond. Most residents can expect a
similarly warm day Thursday, with more noticeable heat expected
Friday through Sunday. Over those three days, many interior
valleys will climb into the upper 90s and low 100s... Perhaps
reaching the 105 mark in the ukiah area. While these temperatures
are not particularly out of the ordinary for our area, a moderate
risk of adverse health effects may develop for those sensitive to
heat over the weekend.

A modest cooling trend will begin Monday and last through the
middle of next week, although temperatures will remain warm and
generally slightly above normal. No additional thunderstorms, or
precipitation for that matter, are expected. Brc

Aviation Stratus continues to impact both acv and cec this
morning with ifr to lifr ceilings and visibilities. Uki has
remained clear as of 4am however stratus is currently at the
sonoma mendocino border and steadily moving to the north. By
sunrise uki may see scattered to broken low clouds near the
airport and persist for a few hours before dissipating by late
morning. Due to an upper level system swinging by today; ifr to
lifr ceilings should remain locked in at both acv and cec through
the entire period. Periods of drizzle will also reduce
visibilities at acv and cec at times through early this afternoon.

Wci

Marine Latest ascat pass this morning shows light northerly
winds in place across the southern waters with very light to calm
winds across the northern waters. Surface high pressure will
continue to build across the area today which will cause northerly
winds to continue to gradually strengthen. Seas on the other
hand, will continue to gradually subside for the next few days as
a westerly and northerly swell continue to decay.

Winds will really begin to strengthen tomorrow evening south of
cape mendocino and across all of the waters by Friday. Gale force
conditions are possible across the waters beginning on Saturday,
leading to steep and hazardous seas. Strong winds and steep seas
will persist through at least the middle of next week. Wci

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46244 - Humboldt Bay, North Spit, CA 19 mi67 min 52°F4 ft
HBYC1 - 9418767 - North Spit, CA 28 mi91 min WNW 7 G 8 53°F 52°F1018.3 hPa
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 33 mi47 min WNW 7.8 G 9.7 53°F 53°F1019.2 hPa52°F
CECC1 - 9419750 - Crescent City, CA 40 mi49 min WSW 5.1 G 5.1 54°F 52°F1017.8 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 47 mi77 min S 1.9 G 3.9 53°F 55°F4 ft1017.7 hPa (+0.7)

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 mi74 minNW 610.00 miOvercast57°F53°F87%1018.1 hPa

Wind History from ACV (wind in knots)
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Last 24hrW5NW8NW10NW9NW9NW7NW7--W5S3S4SE3CalmCalmCalmCalmCalmCalmE3CalmCalmW3NW6W8
1 day agoW5NW7NW95W3W6NW7NW6W4CalmCalmCalmCalmNE4CalmN4NW3N4NE3W5NW4NW5W6NW6
2 days agoSW8SW12SW9SW9W9SW5SW5S4SW8S53S3S4S3SW5CalmCalmW4W3SW3W7W4CalmW5

Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
Click for Map
Wed -- 12:00 AM PDT     2.05 feet Low Tide
Wed -- 01:36 AM PDT     Moonset
Wed -- 03:52 AM PDT     First Quarter
Wed -- 05:36 AM PDT     5.25 feet High Tide
Wed -- 05:44 AM PDT     Sunrise
Wed -- 12:04 PM PDT     0.24 feet Low Tide
Wed -- 01:37 PM PDT     Moonrise
Wed -- 06:53 PM PDT     6.27 feet High Tide
Wed -- 08:52 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
22.32.93.84.65.25.24.73.82.61.50.60.20.51.32.645.266.35.95.142.9

Tide / Current Tables for Mad River Slough, Arcata Bay, Humboldt Bay, California
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Mad River Slough
Click for Map
Wed -- 12:34 AM PDT     2.31 feet Low Tide
Wed -- 01:36 AM PDT     Moonset
Wed -- 03:52 AM PDT     First Quarter
Wed -- 05:44 AM PDT     Sunrise
Wed -- 06:26 AM PDT     6.16 feet High Tide
Wed -- 12:42 PM PDT     0.18 feet Low Tide
Wed -- 01:37 PM PDT     Moonrise
Wed -- 07:46 PM PDT     7.22 feet High Tide
Wed -- 08:51 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.42.93.74.75.66.16.15.34.12.61.30.40.20.81.93.34.86.277.26.75.64.3

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 (15,3,4,5)
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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.