Friday, September22, 2017 L-36.com


Marine Weather and Tides
Bayview, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:04AMSunset 7:13PM Friday September 22, 2017 5:02 PM PDT (00:02 UTC) Moonrise 8:30AMMoonset 7:56PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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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This is a Weather Statement Zone, please check the Date to see if it has expired
PZZ410 754 Am Pdt Thu Sep 7 2017
.a strong Thunderstorm over the waters... The areas affected include... Coastal waters from pt. St. George to cape mendocino ca out to 50... At 751 am pdt...doppler radar indicated Thunderstorms... Capable of producing local winds to around 30 knots and small hail. These storms are moving to the northwest at 25 knots. These Thunderstorms will continue through at least mid morning. Precautionary/preparedness actions... Mariners can expect gusty winds to around 30 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && lat...lon 4174 12417 4160 12410 4114 12416 4104 12412 4077 12423 4076 12423 4081 12418 4081 12417 4069 12422 4071 12426 4065 12431 4063 12428 4062 12426 4061 12433 4045 12441 4052 12578 4178 12499 4178 12426
PZZ400 304 Pm Pdt Fri Sep 22 2017
Synopsis for northern california waters..High pressure building into the area will bring increasing northerly winds this evening and into the weekend. Strongest winds south of the capes and in the outer waters. The northwesterly swell will continue to subside this weekend.

7 Day Forecast for Marine Location Near Bayview, CA
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location: 40.78, -124.2     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 222230
afdeka
area forecast discussion
national weather service eureka ca
330 pm pdt Fri sep 22 2017

Synopsis Frost will once again be possible across some interior
valleys tonight, but a warming and drying trend is expected to
unfold beginning tomorrow. By early next week, temperatures are
expected to climb back above normal.

Discussion After an extended wet and cool period throughout the
region, a steady warming and drying trend is expected to unfold
over the next several days as high pressure reclaims the west
coast. Much like last night, frost will again be a possibility
across several interior valley locations overnight tonight,
particularly in trinity and northern mendocino counties. While
temperatures overall are expected to be slightly warmer than they
were the night before, a few protected pockets will likely see
temperatures in the low to mid 30s yet again. Frost potential will
steadily diminish tomorrow night and beyond.

Temperatures will gradually climb each day from Saturday
until Monday, eventually reaching into the 90s throughout
interior valleys. Interior temperatures will hover in the low to
mid 90s from Monday until at least Friday, although a very slow
cooling trend is expected to close out the week. Coastal
temperatures are expected to reach slightly above normal thanks
to the development of offshore winds, particularly Tuesday and
beyond as the inland thermal trough slides offshore in response to
an approaching upper level trough. Given that high pressure will
dominate area weather for quite some time, precipitation will be
hard to come by for at least the next week. Brc

Aviation A slow building ridge of high pressure and offshore
flow will produceVFR conditions across much of NW california's
aviation district in the next 24 hours. The northeasterly offshore
flow will surely be quite detrimental to any significant marine
layer cloud develop during the TAF period too. Today however,
skies were mostly clear this morning except around humboldt bay
(and a few other places) where morning shallow fog stratus briefly
formed, but swiftly dissipated around sunrise. Also, residual
moisture allowed for a few pockets of fog to form along some river
valleys. Inland areas: as the departing upper trof shifted
eastward... Residual moisture, mountain lift and heat energy caused
enough instability to produce small cumulus buildups over
interior ranges. Ta

Marine Strong northerly winds have begun to develop across the
waters today, and these winds will persist through the weekend and
into the middle of next week. As a result, building steep seas can
be expected throughout much of the waters over the next several
days. The strongest winds are expected to be located to the
immediate south of prominent capes and points, as is often the
case with northerly winds in this region.

By Wednesday, an approaching trough of low pressure will help to
weaken the pressure gradient, and winds will begin to subside.

As a result, steep seas will gradually subside, and relatively
tranquil conditions will develop for the and half of the week.

Brc

Fire weather Warming and drying conditions are expected to
gradually unfold throughout the region between Saturday and early
next week. While many areas saw considerable rainfall this past
week, portions of eastern trinity and most of mendocino and lake
counties did not, and fuels have the potential to dry quickly.

This will especially apply to Monday and Tuesday, as well above
normal temperatures are expected to develop in addition to gusty
nocturnal northeasterly winds at high elevations. While the worst
conditions are expected to unfold to the south and east of the
region, periods of critical fire weather will be possible during
this time frame. Temperatures will remain above normal through the
rest of the week, but offshore wind speeds will begin to diminish
Wednesday and beyond. Brc

Eka watches warnings advisories
Ca... Frost advisory from 1 am to 8 am pdt Saturday for caz107-108-110-
111.

Northwest california coastal waters... Small craft advisory until 8 pm pdt Tuesday for pzz470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 1 mi87 min N 7 G 8 56°F 55°F1015.4 hPa
46244 - Humboldt Bay, North Spit, CA 12 mi42 min 58°F9 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 18 mi73 min N 16 G 19 59°F 59°F9 ft1014.4 hPa (+0.0)53°F
46213 - Cape Mendocino, CA (094) 44 mi41 min 59°F10 ft

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, CA15 mi70 minNW 1210.00 miA Few Clouds63°F50°F63%1014.6 hPa
Fortuna Rohnerville Airport, CA16 mi68 minNW 1310.00 miFair63°F46°F56%1014.9 hPa

Wind History from ACV (wind in knots)
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Last 24hrNW8NW5CalmCalmCalmCalmCalmCalmCalmCalmCalmE4E4E3E4E3CalmNW4W6NW8NW13NW16NW12NW13
1 day agoNW8NE5CalmCalmE3CalmNE5E3E3E4CalmCalmE4E4E4E3CalmNW6NW5W8NW6NW8NW8W7
2 days agoSW7S8S11
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E4CalmNW54W4W8W6

Tide / Current Tables for Bucksport, Humboldt Bay, California
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Bucksport
Click for Map
Fri -- 02:04 AM PDT     6.51 feet High Tide
Fri -- 07:04 AM PDT     Sunrise
Fri -- 07:55 AM PDT     0.99 feet Low Tide
Fri -- 09:30 AM PDT     Moonrise
Fri -- 02:17 PM PDT     6.92 feet High Tide
Fri -- 07:13 PM PDT     Sunset
Fri -- 08:28 PM PDT     0.61 feet Low Tide
Fri -- 08:56 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.16.16.56.25.23.82.41.311.42.53.95.36.46.96.75.84.42.81.50.70.71.42.6

Tide / Current Tables for Mad River Slough, Arcata Bay, Humboldt Bay, California
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Mad River Slough
Click for Map
Fri -- 02:23 AM PDT     7.27 feet High Tide
Fri -- 07:04 AM PDT     Sunrise
Fri -- 08:11 AM PDT     1.07 feet Low Tide
Fri -- 09:30 AM PDT     Moonrise
Fri -- 02:35 PM PDT     7.67 feet High Tide
Fri -- 07:13 PM PDT     Sunset
Fri -- 08:44 PM PDT     0.50 feet Low Tide
Fri -- 08:55 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.26.57.27.16.24.73.11.71.11.42.43.95.46.77.57.66.85.33.61.90.80.51.22.4

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Eureka, CA (20,4,5,8)
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Ground Weather Radar Station Eureka, CA
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weather_mapweather_map weather_map

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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.