Friday, May26, 2017 L-36.com


Marine Weather and Tides
Gonzales, CA

Version 3.4
What's New / NOTES
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 5:49AMSunset 8:15PM Thursday May 25, 2017 10:31 PM PDT (05:31 UTC) Moonrise 5:04AMMoonset 7:17PM Illumination 0% Phase: New Moon; 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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PZZ535 Monterey Bay- 900 Pm Pdt Thu May 25 2017
Tonight..W winds 10 kt. Wind waves 2 ft or less. W swell 3 ft at 10 seconds.
Fri..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 ft at 10 seconds.
Fri night..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 ft at 9 seconds. Patchy fog after midnight.
Sat..W winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 3 ft at 9 seconds. Patchy fog in the morning.
Sat night..W winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 3 ft at 10 seconds.
Sun..W winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 3 to 4 ft.
Memorial day..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 4 ft.
Tue..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft.
PZZ500 900 Pm Pdt Thu May 25 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light onshore flow and moderate seas expected through tonight into Friday. Winds will increasing over the memorial day weekend as high pressure redevelop over the eastern pacific.

7 Day Forecast for Marine Location Near Gonzales, CA
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location: 36.54, -121.46     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 260400
afdmtr
area forecast discussion
national weather service san francisco bay area
900 pm pdt Thu may 25 2017

Synopsis Seasonably cool temperatures will continue into
Friday with a deep marine layer near the coast. Seasonable
temperatures on Saturday should trend warmer inland by Sunday and
memorial day Monday. Aside from the isolated coastal drizzle, dry
weather forecast through the next 7 to 10 days.

Discussion As of 9:00 pm pdt Thursday... Cool temperatures were
observed across the region today with most locations topping out
in the mid 50s to mid 60s. Warmest inland locations reached into
the low 70s. It was a mixed bag of trends with some locations
warming a few degrees with others cooling as much as 22 degrees
over yesterdays temperatures. The deep marine layer allowed for
significant inland intrusion of the cool marine air and cloudy
conditions limited the amount of, if any, sunlight to reach the
ground. Low pressure over the region will maintain the deep and
undefined marine layer across the region through Friday and hence
similar temperatures to those that were seen today. Coastal
drizzle will once again be possible Friday morning.

The upper level trough that currently dominates the western united
states is forecast to begin moving eastward on Friday. This will
allow a shortwave ridge to build over california beginning
Saturday, and result in a modest warming trend for inland areas
over the memorial day weekend. However, coastal areas are not
expected to warm much over the weekend since onshore flow will
continue, along with a persistent marine layer.

Longer range models indicate the arrival of a trough along the
west coast around the middle of next week which should result in
at least slight cooling for inland areas during the second half of
the week.

Aviation As of 5:30 pm pdt Thursday... A deep marine layer along
with southwesterly winds has resulted in a challenging forecast
for this evening. Although most terminals developedVFR conditions
by late afternoon, the boundary layer remains moist and it's
likely that MVFR ceilings will develop in most areas by late
evening. A complicating factor is southerly flow which may delay
onset of ceilings at ksfo and kmry.

Vicinity of ksfo...VFR conditions forecast to persist through 04z
with MVFR ceilings thereafter. However, southerly flow may delay
onset of ceilings. Clearing expected to occur by 17z on Friday.

Moderate and gusty southwest winds this evening and again on
Friday afternoon. Low confidence on onset of low clouds this
evening. Otherwise moderate confidence.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR early in period as southerly winds
downslope off the santa lucias. However, MVFR ceilings will likely
develop by 03z as cooling occurs in the boundary layer. MVFR
ceilings then likely through midday Friday before low clouds
scatter out. Moderate and gusty southwest winds through early this
evening then light winds thereafter. Moderate confidence.

Marine As of 07:48 pm pdt Thursday... Gusty south to southwest
winds along the coast and over the bays will diminish through the
late evening. Generally light winds are then expected overnight
and into Friday. High pressure will redevelop over the eastern
pacific late week and into the memorial day weekend bringing a
return to more typical afternoon and evening onshore winds to the
coastal waters and bays.

Mtr watches warnings advisories
Tngt Sca... Sf bay until 9 pm
sca... Mry bay until 9 pm
sca... Pt pinos to pt piedras blancas 0-10 nm until 9 pm
sca... Pt arena to pigeon pt 10-60 nm until 9 pm
public forecast: cw
aviation: dykema
marine: rgass
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MEYC1 23 mi56 min S 12 G 15 55°F 55°F1011 hPa
ELXC1 - Elkhorn Slough Reserve, CA 24 mi107 min NW 5.1 56°F 1010 hPa52°F
46240 - Cabrillo Point, Monterey Bay, CA (158) 24 mi41 min 55°F3 ft
46092 - MBM1 34 mi85 min SSW 12 56°F 55°F1009.9 hPa (+0.8)
46239 - Point Sur, CA (157) 37 mi40 min 55°F7 ft
46114 - West Monterey Bay, CA 49 mi32 min 57°F6 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salinas, Salinas Municipal Airport, CA11 mi39 minNW 810.00 miOvercast58°F51°F78%1012.3 hPa
Monterey, Monterey Peninsula Airport, CA20 mi38 minSSW 12 G 1910.00 miOvercast56°F51°F84%1012.5 hPa

Wind History from SNS (wind in knots)
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Last 24hrNW8W7SW5N3NE3N3S4S4CalmSE8SE10E6W8W4NW10NW12NW14W14
G22
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1 day agoW3W3CalmSW5W6W5NW7W4NW5W5CalmW4NW7NW8W8W13NW12NW10W13W10W12NW13NW11NW9
2 days agoW6NW5NW5NW5W5N3NE3CalmE4SE5CalmCalmW4W9W14W17W14W11
G19
W9NW11W9W7NW8NW7

Tide / Current Tables for Monterey, Monterey Harbor, California
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Monterey
Click for Map
Fri -- 05:51 AM PDT     -1.49 feet Low Tide
Fri -- 05:52 AM PDT     Sunrise
Fri -- 06:58 AM PDT     Moonrise
Fri -- 12:26 PM PDT     4.13 feet High Tide
Fri -- 05:15 PM PDT     1.89 feet Low Tide
Fri -- 08:16 PM PDT     Sunset
Fri -- 09:27 PM PDT     Moonset
Fri -- 11:24 PM PDT     6.41 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.84.62.91.2-0.3-1.2-1.5-1-01.32.63.64.143.62.92.21.922.73.74.85.86.4

Tide / Current Tables for Elkhorn, California
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Elkhorn
Click for Map
Fri -- 05:51 AM PDT     Sunrise
Fri -- 06:05 AM PDT     -1.41 feet Low Tide
Fri -- 06:57 AM PDT     Moonrise
Fri -- 12:41 PM PDT     4.14 feet High Tide
Fri -- 05:25 PM PDT     1.99 feet Low Tide
Fri -- 08:16 PM PDT     Sunset
Fri -- 09:27 PM PDT     Moonset
Fri -- 11:49 PM PDT     6.33 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.15.13.71.90.3-0.9-1.4-1.1-0.21.12.43.444.13.73.12.422.12.63.54.55.56.1

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 San Francisco/Monterey Bay Area, CA (1,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, 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.