Monday, September25, 2017 L-36.com


Marine Weather and Tides
Boonville, 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 7:03AMSunset 7:04PM Monday September 25, 2017 1:47 PM PDT (20:47 UTC) Moonrise 11:18AMMoonset 9:41PM Illumination 27% Phase: Waxing Crescent; Moon at 5 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- 832 Am Pdt Mon Sep 25 2017
Today..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft at 9 seconds.
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 5 to 7 ft at 9 seconds.
Tue..N winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft at 10 seconds.
Tue night..NW winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 10 seconds.
Wed..SW winds 5 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds.
Thu..NW winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft.
Fri..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 3 ft.
PZZ500 832 Am Pdt Mon Sep 25 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate northwesterly winds will continue over the northern outer waters as high pressure sits over the eastern pacific and a thermal trough resides over california. Winds will begin to decrease on Tuesday as the trough shifts towards the coast.

7 Day Forecast for Marine Location Near Boonville, CA
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location: 38.89, -123.38     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 251147
afdeka
area forecast discussion
national weather service eureka ca
417 am pdt Mon sep 25 2017

Synopsis Above normal temperatures and dry conditions will
persist through the week into the weekend as high pressure
continues to persist over the east pacific ocean.

Discussion Overnight temperatures were much warmer than the
previous nights. Mostly clear skies prevailed over the area, along
with patches of low clouds along the redwood coast and eel river
drainage basin. With the upper level ridge axis pushing east towards
the west coast, do expect another sunny and warm day across nw
california. Highs will be in the mid 80s for interior locations, 60s
along the coast.

Even warmer temperatures for Tuesday and Wednesday, with highs
around 90 degrees in interior locations. By Thursday, the upper
level ridge will push east of our area, and we will start to feel
the influence of a broad upper level trough off the coast of pacific
northwest. With onshore flow, temperatures will be slightly cooler
on Thursday and Friday. The ridge will rebuild over the area for the
weekend, leading to warmer temperatures then.

This pattern doesn't favor precipitation. Do expect dry conditions
to prevail for the next 7 days.

Aviation Mainly clear skies andVFR conditions are in place
across the area this morning. A few areas of stratus are in place
along the coast north of CAPE mendocino. High clouds are making it
difficult to see the extent of the low stratus. This is making
confidence lower than average this morning. Any stratus around is
expected to dissipate by midday. This afternoon breezy winds are
expected along the coast with gusts up to 25 kt. Tonight offshore
flow strengthens and there is little to no stratus expected. Winds
at the surface will diminish once again. Mkk

Marine Northerly winds and seas persist across the outer waters
with light and variable winds closer to the coast. Waves at the
buoys have increased slightly to around 6 to 8 feet around 7
seconds. This afternoon winds will increase with the diurnal
heating of the day and will push the stronger northerly winds in
closer to the coast. Have issued a small craft advisory for these
increased winds and waves. Today the strongest winds will be over
the southern outer waters. Tonight and Tuesday the strongest
winds will shift to the northern outer waters as the high pressure
starts to weaken.

Late Tuesday night and Wednesday models are in decent agreement
that winds will rapidly diminish to less than 5 kt. Seas will also
diminish, but a bit more slowly. Thursday some light southerly
winds are possible, but these should be less than 5 kt. Friday
high pressure starts to build back into the area bringing a return
to stronger northerly winds. Northerly winds of 20 to 30 kt are
expected through the weekend. Models are in decent agreement on
this.

A northwest swell will fluctuate around 2 to 4 feet at 10 to 12
seconds and is expected to persist through the week. Mkk

Fire weather Warm and dry conditions for the work week. Do expect
gusty offshore winds through Tuesday night. Strongest winds will be
at ridge top level. Models show that NE winds of 20 to 30 kt can be
found at 925 mb and 850 mb level. If there is enough diurnal
heating, the lower part of the atmosphere should be well mixed
enough such that the stronger winds can get down to the surface
level. Minimum rh will be around 20 percent. Overnight recoveries
will be poor, at around 40 percent, especially along the ridges. The
combination of low rh and gusty offshore winds can lead to
marginally critical fire weather conditions for Tuesday and Tuesday
night for mendocino, lake, and eastern trinity counties.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory from 1 pm this afternoon to 4 am pdt
Tuesday for pzz450-455.

Small craft advisory until 9 am pdt Wednesday 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 18 mi47 min NW 5.1 G 12 62°F 52°F1014.8 hPa (-0.6)
46014 - PT ARENA - 19NM North of Point Arena, CA 39 mi37 min NNW 9.7 G 14 1015 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 45 mi37 min NW 14 G 18 58°F 60°F1014 hPa56°F

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA20 mi51 minN 010.00 miFair82°F36°F19%1012.7 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmSW3NW8W10
G17
3N8CalmCalmCalmE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm33CalmCalm
1 day agoNW63W7NW12
G16
3N5SW3CalmCalmCalmCalmCalmCalmCalmNW3CalmCalmCalmCalmCalmE3CalmCalm4
2 days ago4N6CalmNW7SW5CalmCalmCalmSE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW35W5

Tide / Current Tables for Arena Cove, Pacific Ocean, California
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Arena Cove
Click for Map
Mon -- 03:30 AM PDT     4.34 feet High Tide
Mon -- 07:05 AM PDT     Sunrise
Mon -- 08:48 AM PDT     2.45 feet Low Tide
Mon -- 12:18 PM PDT     Moonrise
Mon -- 02:52 PM PDT     5.16 feet High Tide
Mon -- 07:06 PM PDT     Sunset
Mon -- 09:56 PM PDT     0.89 feet Low Tide
Mon -- 10:42 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.43.33.94.34.343.52.92.62.52.73.23.94.555.24.94.33.42.51.61.10.91.1

Tide / Current Tables for Point Arena, California Current
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Point Arena
Click for Map
Mon -- 01:05 AM PDT     0.85 knots Max Flood
Mon -- 04:26 AM PDT     -0.00 knots Slack
Mon -- 06:46 AM PDT     -0.70 knots Max Ebb
Mon -- 07:05 AM PDT     Sunrise
Mon -- 10:16 AM PDT     0.00 knots Slack
Mon -- 12:19 PM PDT     Moonrise
Mon -- 01:01 PM PDT     0.62 knots Max Flood
Mon -- 03:55 PM PDT     -0.00 knots Slack
Mon -- 07:03 PM PDT     -1.06 knots Max Ebb
Mon -- 07:06 PM PDT     Sunset
Mon -- 10:42 PM PDT     Moonset
Mon -- 11:05 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.80.80.60.2-0.3-0.6-0.7-0.5-0.3-0.10.20.50.60.50.3-0-0.5-0.9-1.1-0.9-0.7-0.4-0

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 (16,3,4,5)
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Ground Weather Radar Station Sacramento, 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.