Thursday, April25, 2019 L-36.com


Marine Weather and Tides
La Selva Beach, 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 6:18AMSunset 7:51PM Thursday April 25, 2019 4:41 PM PDT (23:41 UTC) Moonrise 12:21AMMoonset 10:20AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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- 208 Pm Pdt Thu Apr 25 2019
Rest of today..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft at 11 seconds.
Tonight..W winds up to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 11 seconds.
Fri..W winds up to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 11 seconds.
Fri night..W winds around 5 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds.
Sat..W winds 5 to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds.
Sat night..W winds up to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 10 seconds.
Sun..SW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft.
Mon..SW winds up to 10 kt. Wind waves 2 ft or less. W swell 2 to 3 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 208 Pm Pdt Thu Apr 25 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure off the coast of the pacific northwest will generate locally stronger winds over the northern waters through tomorrow night with generally light to moderate northerly winds expected elsewhere. As the high shifts westward over the weekend, the strongest winds will become confined to the northern outer waters. Light to moderate northwest swell will persist through the forecast period.


7 Day Forecast for Marine Location Near La Selva Beach, CA
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location: 36.93, -121.85     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 252021
afdmtr
area forecast discussion
national weather service san francisco bay area
121 pm pdt Thu apr 25 2019

Synopsis Night and morning low clouds will continue into the
upcoming weekend. A gradual cooling trend will continue through
the weekend as well. A weak disturbance passing through southern
california will bring clouds and possibly an isolated shower south
of monterey this late this weekend. Otherwise, dry weather through
the forecast period.

Discussion As of 01:18 pm pdt Thursday... Despite ample
sunshine away from the coast today the cooldown is well under way.

The latest 24 hour trend has many locations running 8 to 10
degrees cooler than yesterday at this time. One of the reasons for
this is increased onshore flow and a solid marine layer that
developed. Afternoon visible satellite clearly shows a solid
marine layer (coastal clouds) stretching from socal to well north
of point arena. Other interesting tidbit noticed on the satellite
are fair weather CU popping over the interior mountains like the
southern gabilan range. Not expecting any further development,
but towering CU will be likely. Did lower some coastal
temperatures for the rest of the day due to the cloud cover along
the coast.

Marine layer will move inland again and deepen slightly overnight.

Similar to this morning patchy fog will also be possible along
the coast. The cooling trend noticed today will continue tomorrow,
but only another few degrees. Despite the cooler temperatures high
temperatures across the interior Friday Saturday will still be
above normal for late april.

Lower confidence continues for the end of the weekend and early
next week. Evolving longwave pattern continues to advertise a cut
off low sweeping through socal late Sunday into Monday. An
isolated shower is possible over the higher terrain south of
monterey, but more likely over the sierra and farther south. The
upper low further cool daytime temps into early next week.

Aviation As of 10:32 am pdt Thursday... For 18z tafs. A
weakened northerly gradient allowed stratus to develop overnight
and spread along the coast this morning. Stratus over the monterey
bay sites has dissipated leaving mainly clear skies across the
region. Stratus remains offshore and hugging the immediate
coastline late this morning as the marine layer sits at around
1000 ft agl.VFR conditions to prevail into this evening. Models
are split on timing for stratus to return this evening. For now,
expecting coastal TAF sites to see MVFR to ifr conditions
overnight and tomorrow morning, but confidence is low on timing.

Uncertainty remains as to how far inland stratus will spread
overnight and how long it will hang around. Patchy fog possible in
the north bay overnight. Generally light winds through the period
becoming onshore at 10-15 kt this afternoon.

Vicinity of ksfo...VFR into this evening with low clouds to the
west of the terminal. Models are split on stratus moving into the
airport overnight. Borderline MVFR ifr CIGS will be possible late
tonight and through tomorrow morning. Confidence low on cigs
overnight. W to NW winds 10-15 kt diminishing overnight.

Sfo bridge approach... Same as ksfo.

Monterey bay terminals...VFR through this evening with an early
return of stratus expected. Ifr conditions overnight and tomorrow
morning. Generally light winds through the period.

Marine As of 08:08 am pdt Thursday... Generally light to
moderate northerly winds will continue through much of the week
across the coastal waters. High pressure off the coast of the
pacific northwest will create locally stronger winds over the
northern waters through Friday night. As the high shifts westward
over the weekend, the strongest winds will become confined to the
northern outer waters. Light to moderate northwest swell will
persist through the forecast period.

Mtr watches warnings advisories
Tngt Sca... Pt arena to pigeon pt 10-60 nm
sca... Pt arena to pt reyes 0-10 nm
public forecast: mm
aviation: as
marine: as
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLSC1 - Moss Landing, South Harbor, CA 9 mi35 min W 4.1 G 13 54°F 1016.2 hPa (+0.0)51°F
ELXC1 - Elkhorn Slough Reserve, CA 10 mi117 min WNW 6 57°F 1016 hPa54°F
46092 - MBM1 16 mi89 min WSW 7.8 53°F 55°F1016 hPa (+0.0)
46240 - Cabrillo Point, Monterey Bay, CA (158) 21 mi42 min 59°F3 ft
MEYC1 23 mi66 min 60°F1015.9 hPa
46114 - West Monterey Bay, CA 30 mi42 min 55°F6 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 31 mi52 min WNW 9.7 G 12 53°F 55°F6 ft1015.5 hPa (+0.0)
46239 - Point Sur, CA (157) 43 mi42 min 7 ft
RTYC1 - 9414523 - Redwood City, CA 44 mi42 min NNW 15 G 17 64°F 69°F1014.2 hPa (-0.9)

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA3 mi49 minSW 87.00 miPartly Cloudy59°F54°F83%1015.8 hPa
Monterey Regional Airport, CA23 mi48 minW 86.00 miPartly Cloudy with Haze58°F50°F75%1017 hPa
Salinas, Salinas Municipal Airport, CA23 mi49 minNNW 148.00 miFair62°F51°F67%1016.1 hPa
Hollister, CA, CA23 mi47 minWSW 16 G 2410.00 miFair70°F53°F57%1014.2 hPa

Wind History from WVI (wind in knots)
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Last 24hrSW5SW6S6S4SW3SW3SW3SW3CalmSW3CalmS4SE3SW3CalmCalmCalmCalm4S7SW8SW9SW7SW8
1 day agoS5S6SW5SW3CalmCalmCalmCalmCalmCalmCalmCalmN3N4N4CalmCalmCalmW3S5S7SW8SW56
2 days agoS5S7S6S6CalmE3CalmN3NW3CalmCalmN3NW5NW3N3SW3CalmCalmCalmCalmSW7SW7SW6SW5

Tide / Current Tables for Elkhorn Slough railroad bridge, California
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Elkhorn Slough railroad bridge
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Thu -- 01:20 AM PDT     Moonrise
Thu -- 03:26 AM PDT     4.55 feet High Tide
Thu -- 06:20 AM PDT     Sunrise
Thu -- 10:26 AM PDT     -0.01 feet Low Tide
Thu -- 11:20 AM PDT     Moonset
Thu -- 06:23 PM PDT     3.97 feet High Tide
Thu -- 07:50 PM PDT     Sunset
Thu -- 11:09 PM PDT     2.89 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.43.84.24.54.54.13.32.21.20.4000.411.72.53.23.73.93.93.73.332.9

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Thu -- 01:21 AM PDT     Moonrise
Thu -- 02:15 AM PDT     0.28 knots Max Flood
Thu -- 04:54 AM PDT     -0.00 knots Slack
Thu -- 06:21 AM PDT     Sunrise
Thu -- 08:16 AM PDT     -0.68 knots Max Ebb
Thu -- 11:21 AM PDT     Moonset
Thu -- 12:36 PM PDT     0.00 knots Slack
Thu -- 03:53 PM PDT     0.52 knots Max Flood
Thu -- 07:13 PM PDT     -0.00 knots Slack
Thu -- 07:50 PM PDT     Sunset
Thu -- 09:15 PM PDT     -0.26 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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00.20.30.30.2-0-0.3-0.5-0.7-0.6-0.5-0.4-0.20.10.40.50.50.50.30.1-0.2-0.3-0.2-0.2

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 (19,4,5,8)
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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.