Tuesday, October16, 2018 L-36.com


Marine Weather and Tides
Greenfield, 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 7:12AMSunset 6:27PM Tuesday October 16, 2018 6:58 PM PDT (01:58 UTC) Moonrise 1:16PMMoonset 11:30PM Illumination 50% Phase: First Quarter Moon; Moon at 7 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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PZZ565 Point Pinos To Point Piedras Blancas To 10 Nm- 224 Pm Pdt Tue Oct 16 2018
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 2 ft at 15 seconds and sw 3 ft at 16 seconds.
Wed..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 2 to 3 ft at 19 seconds and sw 3 ft at 16 seconds.
Wed night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft at 17 seconds and sw 3 to 4 ft at 16 seconds.
Thu..NW winds 10 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft at 16 seconds and sw 3 to 4 ft at 16 seconds.
Thu night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 5 to 6 ft at 14 seconds and sw 3 ft at 15 seconds.
Fri..N winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft. SWell S 3 ft.
Sat..NW winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft.
Sun..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 2 to 4 ft.
PZZ500 224 Pm Pdt Tue Oct 16 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the eastern pacific coupled with a thermal trough along the coast will maintain generally light to locally moderate northwesterly winds across the coastal waters through much of the forecast period. Mixed swell will continue with a long period southerly swell through mid week and a more moderate period northwest swell. A longer period northwest swell will arrive during the second half of the week.


7 Day Forecast for Marine Location Near Greenfield, CA
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location: 36.13, -121.64     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 162345
afdmtr
area forecast discussion
national weather service san francisco bay area
445 pm pdt Tue oct 16 2018

Synopsis Generally weak offshore flow is forecast to persist
through at least midweek with temperatures near or above seasonal
averages. Onshore winds increase slightly late in the week which
should help moisten conditions while daytime temperatures remain
mild. A storm system is then forecast to push inland to our north
early next week with cooling temperatures and potential for light
rain over northern california.

Discussion As of 01:52 pm pdt Tuesday... The upper level
pattern over the region will change little through midweek as
mid upper level high pressure over the eastern pacific extends
inland over the pacific northwest and an upper level low remains
over the desert southwest. This will keep light offshore winds
across the interior and result in seasonably warm conditions each
afternoon. Mostly clear conditions are likely overnight with
seasonably cool temperatures in the lower elevations while mild
temperatures persist in the hills mountains with continued
offshore winds.

By late in the week, weak onshore flow will potentially develop
as the upper level low slowly moves to the northeast and high
pressure builds further inland across the west coast. This may
allow for a shallow marine layer to develop with the development
of coastal stratus during the late night and early morning hours.

However, confidence is low at this time and widespread cloud cover
is not currently expected through late week. This too may cool
conditions a bit near the coast as offshore flow remains confined
to the inland areas. This will likely lead to pleasant fall
weather conditions over the region through the upcoming weekend.

The medium range models continue to suggest a possible pattern
shift early next week as an upper level trough approaches the
pacific northwest. This would likely at least result in a cooling
trend region-wide with rain chances increasing over northern
california late Monday into Tuesday. Unsettled weather conditions
look to linger into late next week as well with precipitation
dropping as far south as the north bay. However, confidence
remains low on widespread rainfall actually developing over our
region late in the forecast period. Will need to monitor in the
coming days.

Aviation As of 4:45 pm pdt Tuesday... Satellite image shows
stratus over the waters from point reyes to the santa cruz coast.

Stratus has been spreading south into northern mry bay and this
could bring CIGS to the mry bay area terminals this evening.

These clouds are expected to remain near the coast as the marine
layer is shallow and there is weak offshore flow. This is
consistent with model guidance which also keeps low clouds out.

Vicinity of ksfo...VFR. Models keep stratus confined along the
coast but it will have to be watched. Northwest winds to 15 kt
decreasing after 04z.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Ifr CIGS after 05z possibly sooner.

Marine As of 04:33 pm pdt Tuesday... High pressure over the
eastern pacific coupled with a thermal trough along the coast will
maintain generally light to locally moderate northwesterly winds
across the coastal waters through much of the forecast period.

Mixed swell will continue with a long period southerly swell
through mid week and a more moderate period northwest swell. A
longer period northwest swell will arrive during the second half
of the week.

Mtr watches warnings advisories
Tngt None.

Public forecast: rgass
aviation: W pi
marine: cw dp
fire weather: mm
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46239 - Point Sur, CA (157) 28 mi58 min 62°F3 ft
46028 - CAPE SAN MARTIN - 55NM West Northwest of Morro Bay, CA 31 mi68 min 62°F 62°F4 ft1017.1 hPa (-0.6)
MEYC1 35 mi82 min 63°F1017.9 hPa
46240 - Cabrillo Point, Monterey Bay, CA (158) 37 mi37 min 62°F2 ft
46092 - MBM1 48 mi43 min W 9.7 58°F 62°F1017.4 hPa (+0.0)
ELXC1 - Elkhorn Slough Reserve, CA 48 mi73 min WNW 5.1 59°F 1022 hPa57°F

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Monterey Regional Airport, CA34 mi64 minWNW 610.00 miFair65°F54°F68%1019.1 hPa

Wind History from MRY (wind in knots)
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Last 24hrSW4SE3CalmE4SE4SE6CalmCalmE4CalmCalmE4E3E3CalmSW3NW3NW6NW7NW7NW6W8W6NW6
1 day agoSW4S3CalmE3E6E3E3CalmE3E4NE3E3E6E6E4W3SW3SW6W6NW5NW4SW8N4NW7
2 days agoSW6SE3S3W3S3SW5W3Calm4CalmE4E4SE5SE5E3NE33NW6NW7SW6SW8SW5W6W6

Tide / Current Tables for Carmel Cove, Carmel Bay, California
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Carmel Cove
Click for Map
Tue -- 07:16 AM PDT     Sunrise
Tue -- 07:20 AM PDT     3.59 feet High Tide
Tue -- 11:02 AM PDT     First Quarter
Tue -- 11:17 AM PDT     3.26 feet Low Tide
Tue -- 02:18 PM PDT     Moonrise
Tue -- 04:44 PM PDT     4.09 feet High Tide
Tue -- 06:29 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.31.72.22.73.23.53.63.63.53.33.33.33.43.63.944.13.93.632.41.81.2

Tide / Current Tables for Monterey, Monterey Harbor, California (3)
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Monterey
Click for Map
Tue -- 06:13 AM PDT     3.98 feet High Tide
Tue -- 07:15 AM PDT     Sunrise
Tue -- 11:02 AM PDT     First Quarter
Tue -- 11:31 AM PDT     3.18 feet Low Tide
Tue -- 02:18 PM PDT     Moonrise
Tue -- 04:26 PM PDT     4.28 feet High Tide
Tue -- 06:29 PM PDT     Sunset
Tue -- 11:48 PM PDT     0.71 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.422.73.33.843.93.83.53.33.23.23.43.744.34.23.93.32.61.81.20.8

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 San Francisco/Monterey Bay Area, CA (21,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, 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.