Thursday, June20, 2019 L-36.com


Marine Weather and Tides
Manchester, CA

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Sunrise 5:44AMSunset 8:43PM Wednesday June 19, 2019 11:06 PM PDT (06:06 UTC) Moonrise 9:54PMMoonset 6:54AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 845 Pm Pdt Wed Jun 19 2019
.small craft advisory in effect from 3 am pdt Thursday through late Thursday night...
Tonight..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 4 to 5 ft. NW swell 7 to 9 ft at 11 seconds.
Thu..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 5 to 6 ft. NW swell 8 to 10 ft at 11 seconds.
Thu night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 7 to 8 ft. NW swell 9 to 11 ft at 11 seconds.
Fri..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 7 to 8 ft. NW swell 9 to 11 ft at 11 seconds.
Fri night..NW winds 15 to 25 kt with gusts up to 35 kt. Wind waves 6 to 7 ft. NW swell 9 to 11 ft at 11 seconds.
Sat..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves around 3 ft. NW swell 7 to 9 ft.
Sun..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 8 to 10 ft.
PZZ500 845 Pm Pdt Wed Jun 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light southerly winds will persist along the coast south of point reyes through tomorrow as northerly winds increase across the northern outer waters tonight. Gale force gusts will be possible starting tonight over the outer waters north of point reyes through at least tomorrow night. Elevated winds will become more widespread, mainly over the outer waters, tomorrow through Friday. These winds will result in steep fresh swell creating hazardous seas conditions, especially for smaller vessels.


7 Day Forecast for Marine Location Near Manchester, CA
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location: 38.95, -123.73     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 192143
afdeka
area forecast discussion
national weather service eureka ca
243 pm pdt Wed jun 19 2019

Synopsis Inland high temperatures will lower substantially
Thursday and Friday as an upper level trough passes by, but clear
skies will persist through the weekend. Coastal areas will see a
few patches of fog and low clouds, mainly during the morning
hours, with sunshine and a cool northerly breeze for most
locations.

Discussion High pressure remains in control across northwest
california today, with sunny skies for most locations. The
exception continues to be portions of the mendocino coast, mainly
south of fort bragg, where southerly flow nearshore has allowed
marine stratus to persist. Similar to yesterday evening, northerly
winds offshore will tend to drift closer to shore, and clear out
most of the low clouds and fog. However, as opposed to last night
and today, the southerly winds should not return as we go through
tonight and Thursday. This will be mostly due to the influence of
a mid and upper-level trough dropping south and southeastward
across the pacific northwest, which will weaken thermal troughing
near the california coast and allow the northerly pressure
gradient to push closer to the coast. There is still not much
stratus offshore to our west and northwest, and while some of the
model guidance tries to bring a marine stratus push closer to the
redwood coast, it should not directly influence us. The trough
should weaken and raise the inversion, so any stratus that does
develop around humboldt bay and the eel river delta tonight may
push a bit farther up the coastal hills and river valleys heading
into Thursday morning. Otherwise, expect any patchy low clouds to
dissipate early in the day, similar to the past few days, with
widespread sunshine continuing.

On Thursday and Friday, northerly winds across the coastal plain
and the interior will likely be a bit stronger and gustier than
the past couple of days, while ocean-side locations will probably
not notice much of a difference. That may make it feel a bit
cooler, though temperatures at the coast will not change too
much. Inland it will turn noticeably cooler. While daytime highs
will still reach well into the 80s across the valleys, which is
not 'cool' by most standards, overnight lows Friday morning will
approach 40 in the colder valleys. Additionally, the mid and
higher elevations will be a solid 10 to 15 degrees cooler than
today, accompanied by that northerly breeze.

Heading into this weekend, dry and sunny weather will continue,
with still only limited areas of coastal stratus and fog. Upper
level high pressure will build back in somewhat, allowing inland
temperatures to rebound, perhaps back into the low 90s in the
warmer spots. We are still looking at much of the ensemble and
deterministic model guidance bringing a larger trough southward
along the pacific northwest coast from the gulf of alaska during
the early to middle part of next week. This will most assuredly
carry cooler temperatures for our region. It will also weaken high
pressure offshore, allowing the persistent northerly winds to
finally relax. This could allow for a deeper marine layer, and
perhaps more persistent coastal cloudiness. Additionally, the nbm
and naefs guidance points toward some showers reaching southward
to del norte and siskiyou counties late Tuesday or Wednesday, but
chances for measurable rain are still pretty low at this point.

Aad

Aviation Robust northerlies continued overnight along the far
north coast keeping conditions at cec quite windy and mostly
clear. However, gusty winds decoupled early at acv... Then marine
stratus moved back across the terminal starting in MVFR to ifr and
lasting into late morning. A shallow marine layer still continued
to hug much of the mendocino coast. A surge of stratus breached
across the interior mendocino sonoma border but halted once again
just south of hopland. Inland mountains areas remained skc.

Through next 24 hours, no real change expected as model data
continue to forecast brisk conditions at cec and mostly skc.

Stratus advection once again expected at acv with CIGS probably
700-1100 feet.VFR will repeat across the interior. Ta

Marine A large area of surface high pressure located over the
nern pac combined with low pressure over cntrl ca and the great
basin continues to yield a tight pressure gradient over the coastal
waters of nwrn ca. Gale force northerlies are occurring as a result
over the eka outer waters. Those winds are producing steep hazardous
seas that are propagating across the eka inner waters. Model
guidance indicates these conditions will continue through the
weekend. The tight pressure gradient is forecast to dissipate
early next week, which will cause winds and seas to finally
subside.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Hazardous seas warning
until 11 pm pdt Friday for pzz450-455.

Gale warning until 11 pm pdt Friday for pzz470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 3 mi48 min E 2.9 G 4.1 51°F 55°F1013.5 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 23 mi26 min NNW 23 G 27 54°F 51°F1012.7 hPa52°F

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA31 mi70 minSW 410.00 miFair75°F55°F52%1010.6 hPa

Wind History from UKI (wind in knots)
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Last 24hrS4S4SE4SE4S3S3S4S3S3SE33SE5SE55SE7SE8SE9SE5SE6SE7SE6S7E4SW4
1 day agoSE3S5S3SE3SE3CalmCalmCalmCalmCalmCalmW333Calm--NW10--NW7CalmSE5SE6S5SE3
2 days agoSE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE533S7SE645N9N7W3SW3Calm

Tide / Current Tables for Point Arena, California
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Point Arena
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Thu -- 12:43 AM PDT     5.60 feet High Tide
Thu -- 05:49 AM PDT     Sunrise
Thu -- 07:59 AM PDT     -0.74 feet Low Tide
Thu -- 08:50 AM PDT     Moonset
Thu -- 03:11 PM PDT     4.56 feet High Tide
Thu -- 08:07 PM PDT     3.08 feet Low Tide
Thu -- 08:43 PM PDT     Sunset
Thu -- 11:32 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.55.65.24.331.60.3-0.5-0.7-0.40.31.32.43.54.24.54.44.13.63.23.13.23.74.3

Tide / Current Tables for Point Arena, California Current
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Point Arena
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Thu -- 01:49 AM PDT     -0.00 knots Slack
Thu -- 05:12 AM PDT     -1.39 knots Max Ebb
Thu -- 05:49 AM PDT     Sunrise
Thu -- 08:50 AM PDT     Moonset
Thu -- 09:13 AM PDT     0.00 knots Slack
Thu -- 12:16 PM PDT     1.05 knots Max Flood
Thu -- 03:44 PM PDT     -0.00 knots Slack
Thu -- 05:50 PM PDT     -0.60 knots Max Ebb
Thu -- 08:43 PM PDT     Sunset
Thu -- 09:08 PM PDT     0.00 knots Slack
Thu -- 11:32 PM PDT     Moonrise
Thu -- 11:49 PM PDT     0.61 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.3-0.1-0.6-1.1-1.4-1.3-1-0.6-0.10.40.9110.80.4-0.1-0.5-0.6-0.5-0.3-00.30.5

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 (2,6,7,8)
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Ground Weather Radar Station Sacramento, 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.