Thursday, January24, 2019 L-36.com


Marine Weather and Tides
Myrtle, 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 7:31AMSunset 5:25PM Thursday January 24, 2019 3:39 AM PST (11:39 UTC) Moonrise 9:59PMMoonset 10:08AM Illumination 87% 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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PZZ410 730 pm pdt Tue mar 13 2018 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 bar... At 729 pm pdt, doppler radar indicated a shower, capable of producing winds to around 30 knots. This shower was located 9 nm north of cape mendocino, moving northeast at 20 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. 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 4080 12411 4080 12418 4075 12419 4073 12423 4070 12421 4068 12422 4070 12427 4071 12427 4065 12431 4063 12429 4063 12424 4062 12426 4063 12432 4047 12439 4057 12459 4095 12437 4086 12417 4076 12423 4085 12416 4082 12409
PZZ400 215 Am Pst Thu Jan 24 2019
Synopsis for northern california waters...light to moderate northerlies will prevail for the next several days as high pressure builds over the region. Seas will consist of primarily long-period westerly swell, with steeper northerly wind waves expected south of cape mendocino.


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 232245
afdeka
area forecast discussion
national weather service eureka ca
245 pm pst Wed jan 23 2019

Synopsis Light rain will taper off across portions of del norte
county this evening. Otherwise, mild and dry conditions are expected
to prevail across the region through early next week.

Discussion A weak upper level disturbance moving through the top
of the NE pacific ridge has been sufficient to generate a few
sprinkles over del norte county today, however the primary impact
for most of the area has been an increase in cloud cover helping
to hold afternoon high temperatures down in the low to mid 50s.

The exception has been farther south into mendocino county where
sunnier skies and slightly warmer temperatures prevail. Any light
rain will quickly come to an end this evening as the upper wave
drops south through the area. The ridge will then continue to
amplify during the end of the work week as the ridge axis nudges
eastward to the coast, promoting mostly clear skies and slightly
warmer daytime temperatures heading into the weekend. The
combination of clear skies and large scale subsidence will
continue to support potential fog formation in the typically
favored areas for the next several nights. A potent shortwave
trough progged to dig southward across the intermountain west
early next week will bring more robust offshore flow and colder
temperatures aloft to the area, however sensible weather impacts
look to be negligible as high pressure continues to dominate the
ne pacific and west coast for the foreseeable future. Cb

Aviation MVFR ceilings have spread into acv and cec as a weak
storm system arrives from the northwest. Some light drizzle will be
possible late this afternoon and evening at both sites, with some
improvement in ceilings and visibility expected after midnight,
followed byVFR conditions during the day Thursday.

At uki, some patchy shallow fog will be possible overnight tonight,
but any that manages to develop should dissipate by late morning.

Confidence is low regarding this. Brc

Marine Very little change is expected through the end of the week
as the waters will remain within a regime of moderate to fresh
northerlies. As is often the case in northerly flow regimes, the
strongest winds are expected to occur from CAPE mendocino
southwards, where winds of between 15 and 25 kt are expected to
generate some moderately steep seas. Otherwise, ocean conditions
will generally remain dominated by a series of long period westerly
swells, the first of which will continue to build through the
evening today. While small in comparison to some of the larger
swells we've seen this season, these swells will likely bring
significant wave heights to near and even slightly above 10 feet,
and while seas have not quite reached these heights as of 2 pm
Wednesday, small craft advisories will be allowed to continue
given the expected upward trend later today.

Winds are expected to weaken later in the weekend and early next
week, and eventually turn primarily offshore easterly. Meanwhile,
moderate westerly swells will continue to move through the
waters. Brc

Beach hazards A series of moderate long period westerly
swells will impact area beaches this week, which may result in an
elevated risk of sneaker waves at various times. Beachgoers are
urged to use caution on area beaches, and maintain a safe distance
from the surf line at all times. Brc

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory until
3 am pst Thursday for pzz450-470.

Small craft advisory until 9 pm pst Thursday for pzz455.

Small craft advisory until 3 pm pst Friday 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 5 mi63 min NNE 8 G 9.9 48°F 53°F1030.4 hPa
46244 - Humboldt Bay, North Spit, CA 13 mi39 min 53°F9 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi29 min NNE 14 G 18 53°F1030.3 hPa
46213 - Cape Mendocino, CA (094) 47 mi39 min 54°F8 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, CA13 mi46 minN 00.25 miFog46°F45°F96%1030.7 hPa

Wind History from ACV (wind in knots)
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Last 24hrE4E6E3E3E6S5S6E5E4CalmCalmNW5NW6NW4CalmCalmCalmCalmCalmCalmCalmNE4CalmCalm
1 day agoCalmE3E6CalmE4CalmCalmNW4NW7NW6NW10NW6N5CalmCalmSE3NE3E3E4CalmE5SE4CalmE6
2 days agoSE3CalmE3E3E4CalmCalm4N7NW12NW11N13N10N73N6CalmCalmE4CalmCalmE4E6E6

Tide / Current Tables for Eureka Slough Bridge, Humboldt Bay, California
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Eureka Slough Bridge
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Thu -- 03:05 AM PST     7.23 feet High Tide
Thu -- 07:33 AM PST     Sunrise
Thu -- 08:14 AM PST     2.13 feet Low Tide
Thu -- 10:08 AM PST     Moonset
Thu -- 02:25 PM PST     7.88 feet High Tide
Thu -- 05:24 PM PST     Sunset
Thu -- 08:47 PM PST     -0.84 feet Low Tide
Thu -- 09:58 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.95.66.87.26.95.74.22.82.22.33.24.567.27.87.76.752.90.9-0.5-0.8-0.21.1

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
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Thu -- 02:24 AM PST     5.94 feet High Tide
Thu -- 07:33 AM PST     Sunrise
Thu -- 08:09 AM PST     2.09 feet Low Tide
Thu -- 10:08 AM PST     Moonset
Thu -- 01:44 PM PST     6.53 feet High Tide
Thu -- 05:24 PM PST     Sunset
Thu -- 08:42 PM PST     -0.82 feet Low Tide
Thu -- 09:59 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.85.25.95.85.34.33.32.52.12.33.24.45.66.36.564.93.41.70.3-0.6-0.8-0.11.3

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Eureka, CA (6,6,7,8)
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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.