Wednesday, August23, 2017 L-36.com


Marine Weather and Tides
Little River, 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 6:33AMSunset 7:56PM Wednesday August 23, 2017 1:18 AM PDT (08:18 UTC) Moonrise 7:38AMMoonset 8:23PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 840 Pm Pdt Tue Aug 22 2017
Tonight..NW winds 5 to 15 kt. Waves nw 3 ft at 5 seconds... And nw 3 ft at 9 seconds. Patchy fog.
Wed..NW winds 5 to 15 kt. Waves nw 4 ft at 6 seconds...and sw 2 ft at 12 seconds. Patchy fog.
Wed night..NW winds 10 to 15 kt. Waves nw 6 ft at 7 seconds... And nw 3 ft at 11 seconds. Patchy fog.
Thu..NW winds 10 to 20 kt. Waves nw 7 ft at 8 seconds...and nw 4 ft at 13 seconds.
Thu night..NW winds 15 to 25 kt. Waves nw 8 ft at 9 seconds.
Fri..NW winds 5 to 15 kt. Waves nw 7 ft at 8 seconds.
Sat..NW winds 5 to 10 kt. Waves N 4 ft at 9 seconds.
Sun..NW winds 5 to 10 kt. Waves nw 6 ft at 8 seconds.
PZZ400 840 Pm Pdt Tue Aug 22 2017
Synopsis for northern california waters..Marine conditions will deteriorate tonight as high pressure builds offshore bringing increasing northerly winds. Strong northerlies and steep seas will persist through the work week with gale force wind gusts possible across the outer waters.

7 Day Forecast for Marine Location Near Little River, CA
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location: 39.26, -123.75     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 222235 cca
afdeka
area forecast discussion... Corrected
national weather service eureka ca
335 pm pdt Tue aug 22 2017

Synopsis An upper trough will moderate interior temperatures
through most of the week. Warmer weather conditions are expected
for the weekend as high pressure builds over the area. Coastal
locations will continue to see the usual dose of low clouds and
fog through the week before the marine layer decreases.

Discussion The primary concern tonight is the potential for
thunderstorms and lightning activity in trinity county. An upper
level low offshore the southern ca coast has been steering mid
level moisture from the great basin northwestward into the nw
california today. The GFS and NAM as well as mesoscale analysis
indicates the best chance for storms across the trinity mountains
north and northeast of weaverville this evening. The storms appear
to be driven by the heating of the day and for the most part
should die down by mid to late evening. A shortwave pin-wheeling
around the upper level low may trigger a few overnight storms
past midnight, mainly across northern trinity county.

Drier mid level southwesterly flow will spread into the area
through the day on Wednesday as an upper level trough approaches
the west coast. Thus, expect the thunderstorm threat to shift off
to the northeast and east. There does appear to be some lingering
instability in NE trinity county early Wednesday morning, so left
a slight chance of showers in the forecast for that area.

The offshore trough will moderate temperatures across the
interior through the week. The marine layer should remain
moderately deep with onshore flow dominating through the week. A
dry cold front will move across the region on Thursday and the
layer may lift up and push into the coastal mountains while
coastal areas clear out. The bufkit profiles support the idea of
a deeper marine through Thursday. The increase in northerly winds
offshore should help to erode the stratus clouds late in the week,
especially south of the cape. For now, the stratus forecast has
been based largely on persistence and climatology due to the weak
offshore flow signal from the models and small amount of cooling
aloft from the front.

Going into this weekend, an upper level ridge will build over the
area resulting in warming for the interior. Interior valleys will
once again flirt with 100f degree heat as 850mb temperatures hit
25-30c in response to strong adiabatic warming. The marine layer
should compress with the potential for dense fog at sea level. The
offshore flow does not look very pronounced at this point, thus
patches of low clouds and fog may linger near or at the shoreline
through the day. The hot weather will most likely continue into
the early portion of next week as strong ridging aloft dominates
the weather across the region.

Aviation The marine layer stratus has persistently and
consistently kept coastal conditions belowVFR through several
day's TAF cycles... . Remaining quite entrenched and showed little
possibility of breakup. However, middle upper level clouds
advecting west to east into humboldt today "may" be the catalyst
to briefly allow for some dispersal of stratus from eka-
acv... Therefore briefly raising CIGS at acv. The 20z (1pm)
satellite visual picture gave weak indication of this scenario.

Still plenty of skepticism since the stratus has been quite
prevalent and has been a little tough to see under all the mid-
high level clouds. Also models not really optimistic. For now
will hang on to model solutions. Inland mountains valleys:
plethora of mid-upper level clouds being driven across the region
will continue to produce thunderstorm threats to flight
operations. However,VFR skies and visibilities should prevail. Ta

Marine Relatively low marine conditions prevailed today with
predominately light winds and seas ranging from 3 to 5 feet.

Conditions will change starting tonight as high pressure offshore
brings increasing northerlies. Moderate to fresh winds will develop
on Wednesday, with the strongest winds across the southern waters.

Then strong winds will become more widespread Thursday and Friday as
the pressure gradient tightens further. Gale force wind gusts will
be possible, primarily across the outer waters, later in the work
week. The existing advisories will continue but we will have to take
a look at the possibility for a potential gale warning. As of now,
gale gusts look marginal but there may be a quick shot of gusts near
40 kt Thursday night. Stay tuned. In addition, small craft
advisories will likely be needed across the inner waters but it is a
bit too early issue. Steep seas will build through the week with a
few moderate northwesterly wave systems forecast to propagate the
waters. It looks like some relief will come late this weekend into
next week as the ridge of high pressure weakens offshore. This will
subsequently allow winds to diminish and seas to subside but there
is some uncertainty this far in advance. Kml

Fire weather A red flag warning remains in effect for zone 283
through this evening for abundant lightning. Thus far, the only
lightning activity has been in-cloud just north of the trinity
alps. The models continue indicate favorable convective
parameters for isolated storms over the trinity mountains this
evening, though confidence is not high we are going to see a
major outbreak of lightning activity in zone 283 this evening.

The storms should be slow moving resulting in the potential for
locally heavy rain. An isolated dry strike may still occur outside
of these wet cores. Warmer and drier weather conditions are
expected to return this weekend. This may allow holdover fires to
intensify and spread. An offshore flow is expected for the
weekend, however current indications are for east winds to be
lighter than the offshore flow event last weekend.

Eka watches warnings advisories
Ca... Red flag warning until midnight pdt tonight for caz283.

Northwest california coastal waters...

small craft advisory from 3 am Wednesday to 9 pm pdt Thursday
for pzz470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 12 mi38 min NNW 5.8 G 7.8 1016.4 hPa
ANVC1 - 9416841 - Arena Cove, CA 24 mi48 min WNW 4.1 G 7 54°F 56°F1016.7 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA30 mi82 minS 310.00 miFair69°F52°F55%1014 hPa

Wind History from UKI (wind in knots)
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Last 24hrSE5S5S6CalmCalmCalmS3Calm4CalmE44Calm3W7W9
G16
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1 day agoS6S6S4S4S4S3SE6SE6SE6S8SE8SE9S11SE12
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Tide / Current Tables for Albion, California
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Albion
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Wed -- 12:20 AM PDT     6.24 feet High Tide
Wed -- 06:35 AM PDT     Sunrise
Wed -- 06:49 AM PDT     -0.15 feet Low Tide
Wed -- 08:37 AM PDT     Moonrise
Wed -- 01:29 PM PDT     5.63 feet High Tide
Wed -- 07:06 PM PDT     1.52 feet Low Tide
Wed -- 07:58 PM PDT     Sunset
Wed -- 09:23 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.26.15.33.92.410.1-0.10.31.22.53.84.95.55.54.93.92.71.91.51.82.53.54.6

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Wed -- 01:08 AM PDT     -0.00 knots Slack
Wed -- 04:08 AM PDT     -1.48 knots Max Ebb
Wed -- 06:35 AM PDT     Sunrise
Wed -- 07:54 AM PDT     0.00 knots Slack
Wed -- 08:37 AM PDT     Moonrise
Wed -- 10:51 AM PDT     1.24 knots Max Flood
Wed -- 02:00 PM PDT     -0.00 knots Slack
Wed -- 04:36 PM PDT     -1.12 knots Max Ebb
Wed -- 07:59 PM PDT     Sunset
Wed -- 08:07 PM PDT     0.00 knots Slack
Wed -- 09:23 PM PDT     Moonset
Wed -- 10:58 PM PDT     1.07 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.1-0.6-1.2-1.5-1.4-1-0.60.10.71.11.21.10.6-0-0.7-1.1-1.1-0.9-0.6-0.10.50.91.1

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 (4,6,7,8)
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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.