Monday, January22, 2018 L-36.com


Marine Weather and Tides
Philo, 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 7:24AMSunset 5:24PM Monday January 22, 2018 2:15 AM PST (10:15 UTC) Moonrise 10:40AMMoonset 11:01PM Illumination 31% Phase: Waxing Crescent; Moon at 6 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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PZZ540 Point Arena To Point Reyes To 10 Nm- 839 Pm Pst Sun Jan 21 2018
.small craft advisory in effect through late Monday night...
Tonight..SW winds 15 to 25 kt. Wind waves 4 to 6 ft. W swell 11 to 14 ft at 16 seconds and sw 3 ft at 12 seconds. Rain late in the evening, then rain likely after midnight.
Mon..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 11 to 13 ft at 15 seconds and sw 3 ft at 12 seconds. Slight chance of showers in the morning.
Mon night..N winds 10 kt...becoming southeast after midnight. Wind waves 2 ft or less. W swell 9 to 11 ft at 14 seconds.
Tue..SE winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft at 13 seconds.
Tue night..SE winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 4 to 5 ft at 12 seconds. Slight chance of rain after midnight.
Wed..SW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 5 to 7 ft...increasing to 7 to 9 ft. Rain, then rain likely.
Thu..W winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 12 to 15 ft. Chance of showers, then slight chance of showers.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 10 to 13 ft.
PZZ500 839 Pm Pst Sun Jan 21 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... South winds will increase ahead of an approaching cold front. The cold front is forecast to pass through Monday morning and winds will switch to northwest. Small craft advisories are in place for most coastal water zones mainly due to squared and hazardous seas over the next couple of days. A new northwest swell train arrives by this evening.

7 Day Forecast for Marine Location Near Philo, CA
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location: 39.15, -123.45     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 212254
afdeka
area forecast discussion
national weather service eureka ca
254 pm pst Sun jan 21 2018

Synopsis Precipitation will be diminishing through tonight. Dry
day on Monday, transition day on Tuesday. Next weather system will
impact NW california from Tuesday night through Friday. Potentially
drier weather after that.

Discussion For today, precipitation has moved onshore. The
heaviest rainfall can be found in the hills south of eureka and
north of mendocino county. So far, most areas have seen around 0.5
to 1 inch of rainfall, with higher amounts in exposed windward
slopes. Moderate precipitation will be spreading south and east into
trinity and mendocino county late this afternoon through this
evening. Still expect wintry precipitation for trinity county.

Snowfall rate can be heavy at times, lowering visibilities and
making travel very hazardous. The winter storm warning for northern
trinity county and the winter weather advisory for southern
trinity county remains in effect until 10 pm this evening. For
coastal humboldt and del norte county, do expect precipitation to
taper off through this evening as the front pushes inland.

Gusty winds were also reported by stations in the area. Crescent
city observed a peak gust of 52 mph, while cooskie mountain saw a
gust of 51 mph. Wind gusts were around 40 to 45 mph in the humboldt
bay area. Wind advisory will remain in effect through 4 pm this
afternoon.

Monday will be a dry day across most of NW california as a
transitory high moves over the area. The dry weather, however,
will not last long. The next significant weather front will move
into the area, and allow the return of precipitation to the area
by Tuesday evening. There will also be southerly wind ahead of the
weather front on Tuesday. These southerly winds will have some
downslope drying component to it. Do expect a mostly dry, but
fairly warm day for humboldt and del norte coast. Do expect highs
on Tuesday to approach 60 degrees. Precipitation and wind will
then move into the area by Tuesday night, and then spread inland
during the overnight hours into Wednesday. Do expect moderate to
heavy rain will linger through Wednesday. After the weather front,
much cooler air and showers will impact NW california. Right now,
it looks interior snow will be favorable Thursday through Friday.

After that, looks like we may have drier weather returning to the
area.

Aviation A front will sag southward this evening generating
light to moderate rain and MVFR conditions for the forecast
terminals. Conditions should improve for cec and acv overnight while
conditions at uki deteriorate to ifr.

Marine A front will transition southward into mendocino waters
this evening, however confidence that winds will gusts to 35 kt or
more remains low. All the models continue to indicate the boundary
weakening south of the CAPE this evening. Thus will let the current
warnings for gales end around 6pm. Winds north of the CAPE should
dye down quickly late this afternoon into early evening, however
seas will remain chaotic with a combination of large mid period
westerly swell and steep southerly wind waves. A small craft
advisory warning for hazardous seas will be necessary.

Winds should be tranquil on mon, though seas will continue to be
hazardous due to a westerly swell centered near 14 seconds. This
swell should subside on tue, bottoming out around 8 ft. This brief
reprieve probably will not last long, especially in the outer waters
and north of CAPE mendo, as southerlies start to ramp up again in
advance of the next storm.

A new storm system will impact the waters through the rest of the
week. South-southeasterly winds will likely strengthen to gale force
again by Tue night as the frontal boundary eventually moves across
the waters. We should see frontal passage on Wed along with brisk
west to southwest winds. Short period southerly wind waves will
dominate the spectrum Tue and Tue night. The storm will generate a
fairly large westerly swell group arrives that should arrive wed
night into thu. The GFS wind fields continue to fluctuate around, so
the exact magnitude of the swell is still sketchy. We may start to
see a break in the active pattern toward the end of the week (fri
that is), though seas will probably hover around 10 ft.

Eka watches warnings advisories
Ca... Winter weather advisory until 10 pm pst this evening for caz108.

Wind advisory until 4 pm pst this afternoon for caz101-102-
104>106.

Winter storm warning until 10 pm pst this evening for caz107.

Northwest california coastal waters... Gale warning until 5 pm pst this afternoon for pzz450-470.

Gale warning until 6 pm pst this evening for pzz455-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 21 mi45 min NW 4.1 G 8 52°F 55°F1024.9 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 28 mi35 min NNW 7.8 G 14 1024.5 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA13 mi19 minSSE 74.00 miLight Rain Fog/Mist51°F48°F89%1023.3 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmW3CalmCalmCalmN3E5CalmCalmCalm3CalmS6S7S6S7S7S8S11S10
G18
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1 day agoCalmCalmN3CalmNE4CalmCalmNW4--CalmNW8NW7
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2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW4S3CalmN6CalmN4CalmCalmCalmSW3CalmNW4CalmCalm

Tide / Current Tables for Albion, California
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Albion
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Mon -- 02:48 AM PST     5.12 feet High Tide
Mon -- 07:29 AM PST     Sunrise
Mon -- 08:32 AM PST     2.45 feet Low Tide
Mon -- 10:41 AM PST     Moonrise
Mon -- 02:09 PM PST     4.57 feet High Tide
Mon -- 05:24 PM PST     Sunset
Mon -- 08:34 PM PST     0.83 feet Low Tide
Mon -- 11:03 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.54.455.14.84.23.52.82.52.52.83.33.94.34.64.43.93.12.21.40.90.91.32.1

Tide / Current Tables for Point Arena, California Current
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Point Arena
Click for Map
Mon -- 12:17 AM PST     0.90 knots Max Flood
Mon -- 03:40 AM PST     -0.00 knots Slack
Mon -- 06:16 AM PST     -0.84 knots Max Ebb
Mon -- 07:28 AM PST     Sunrise
Mon -- 09:46 AM PST     0.00 knots Slack
Mon -- 10:41 AM PST     Moonrise
Mon -- 12:30 PM PST     0.59 knots Max Flood
Mon -- 03:16 PM PST     -0.00 knots Slack
Mon -- 05:24 PM PST     Sunset
Mon -- 06:27 PM PST     -0.99 knots Max Ebb
Mon -- 09:49 PM PST     0.00 knots Slack
Mon -- 11:03 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.80.60.3-0.1-0.6-0.8-0.8-0.5-0.20.10.40.60.60.40.1-0.3-0.7-0.9-0.9-0.7-0.30.10.4

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 (5,6,7,8)
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Ground Weather Radar Station Beal AFB, 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.