Friday, July19, 2019 L-36.com


Marine Weather and Tides
San Jose, CA

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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:00AMSunset 8:27PM Friday July 19, 2019 3:20 AM PDT (10:20 UTC) Moonrise 9:29PMMoonset 7:31AM Illumination 94% 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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PZZ535 Monterey Bay- 237 Am Pdt Fri Jul 19 2019
Today..SW winds 5 to 10 kt, increasing to 10 to 15 kt this afternoon. Wind waves 2 ft or less, then around 3 ft this afternoon. W swell around 2 ft at 15 seconds. Patchy fog this morning.
Tonight..SW winds 5 to 10 kt. Wind waves 2 ft or less. W swell around 2 ft at 15 seconds.
Sat..W winds 5 to 10 kt. Wind waves around 3 ft.
Sat night..W winds around 5 kt. Wind waves 2 ft or less.
Sun..W winds 5 to 10 kt. Wind waves around 3 ft.
Sun night..W winds 5 to 10 kt. Wind waves 2 ft or less.
Mon..W winds 10 to 15 kt. Wind waves around 3 ft.
Tue..NW winds 15 to 20 kt. Wind waves around 3 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 237 Am Pdt Fri Jul 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Split flow will develop overnight through Friday with light to locally moderate northwest winds in the northern outer waters and southerly winds along the coast. The sea state will continue to be dominated by steeper northwest wind waves mixed with a light long period southwest swell.


7 Day Forecast for Marine Location Near San Jose, CA
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location: 37.26, -121.78     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 191003
afdmtr
area forecast discussion
national weather service san francisco bay area
303 am pdt Fri jul 19 2019

Synopsis An inland cooling trend will persist today and
early Saturday with periods of night and morning low clouds.

Temperatures will then warm slightly this weekend before
rebounding back to near seasonal normals by next week.

Discussion As of 3:03 am pdt Friday... The marine layer is
slightly more shallow than last night, but still over 1500 feet
deep per the fort ord profiler. Satellite imagery shows low clouds
filling into the usual inland valleys, but the stratus has eroded
somewhat over the ocean near the coast, especially north of the
golden gate. Patchy fog and coastal drizzle will also be possible
early this morning. Highs today should be similar to yesterday's
overall.

A warming trend will begin, especially inland, on Sunday and
continue into next week as high pressure begins to build westward
from the desert southwest. An upper level trough over the eastern
pacific, though, will keep coastal temperatures moderate with a
persistent sea breeze. Highs across inland areas will be int he
mid 80s to mid 90s by Sunday, with additional warming by Thursday.

The deepening trough off of the west coast will prevent the ridge
from strengthening too much over our area next week.

Aviation As of 10:45 pm pdt Thursday... For 06z tafs. Marine
stratus deck developed along the coast and pushed inland over the
course of the evening, however, latest satellite imagery shows
rapid clearing from north to south across most of the waters at
this hour. The marine stratus deck is currently holding on along
the immediate coastline at this hour and tendrils of stratus are
protruding inland despite the clearing offshore. Low confidence
overall on duration of clearing but expecting to see some
redevelopment of marine deck overnight into Friday morning.

Vicinity of ksfo... Sct bkn CIGS 1000-1500 ft agl overnight into
fri morning. Low confidence on ceilings and timings giving
rapid clearing offshore. Breezy onshore winds tomorrow
afternoon evening.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Marine layer is deeper around the
monterey bay. Lifr-ifr CIGS all night into Friday morning.

Occasionally breezy onshore winds tomorrow afternoon.

Marine As of 2:37 am pdt Friday... Split flow will develop
overnight through Friday with light to locally moderate northwest
winds in the northern outer waters and southerly winds along the
coast. The sea state will continue to be dominated by steeper
northwest wind waves mixed with a light long period southwest
swell.

Mtr watches warnings advisories
Tday Sca... Pt arena to pigeon pt 10-60 nm
public forecast: sims
aviation: drp
marine: W pi
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 29 mi50 min S 5.1 G 8 64°F 74°F1012 hPa
ELXC1 - Elkhorn Slough Reserve, CA 31 mi95 min SW 2.9 58°F 1013 hPa58°F
MLSC1 - Moss Landing, South Harbor, CA 32 mi26 min SW 4.1 G 11 56°F 1013.3 hPa56°F
46092 - MBM1 38 mi67 min W 5.8 56°F 55°F1013.4 hPa (-0.6)
46240 - Cabrillo Point, Monterey Bay, CA (158) 44 mi50 min 59°F1 ft
AAMC1 - 9414750 - Alameda, CA 45 mi50 min WSW 4.1 G 5.1 60°F 67°F1012.1 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 46 mi30 min W 3.9 G 5.8 59°F 59°F4 ft1012.2 hPa (-0.7)
LNDC1 46 mi50 min WSW 5.1 G 6 60°F 1011.5 hPa
MEYC1 46 mi44 min 60°F1013.2 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 47 mi50 min SW 12 G 14
46114 - West Monterey Bay, CA 48 mi50 min 60°F4 ft
OBXC1 48 mi50 min 59°F 58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 48 mi50 min SW 8 G 12 59°F 1011.5 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 49 mi50 min E 1.9 G 4.1 58°F 1010.5 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA11 mi27 minSE 1110.00 miFair60°F23°F24%1011.5 hPa
Mountain View, Moffett Field, CA19 mi84 minNNE 310.00 miMostly Cloudy63°F57°F84%1012.2 hPa
Watsonville, Watsonville Municipal Airport, CA22 mi27 minN 09.00 miOvercast59°F55°F90%1012.8 hPa

Wind History from RHV (wind in knots)
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Last 24hr----------------S7S7S5S6SE10S74--NW12NW10NW9NW9NW10NW8NW3Calm
1 day ago----------------SE7S5S9S10S6SW6CalmW5W11NW8
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2 days ago----------------CalmCalmCalmCalmW7N8W10NW13
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Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
Click for Map
Fri -- 02:15 AM PDT     9.66 feet High Tide
Fri -- 06:01 AM PDT     Sunrise
Fri -- 08:31 AM PDT     Moonset
Fri -- 10:19 AM PDT     -0.38 feet Low Tide
Fri -- 04:18 PM PDT     8.06 feet High Tide
Fri -- 08:26 PM PDT     Sunset
Fri -- 10:26 PM PDT     3.06 feet Low Tide
Fri -- 10:29 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.38.49.69.58.77.25.33.31.50.2-0.3-0.11.33.25.37.187.97.15.94.73.73.13.3

Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
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Dumbarton Point 2.3 mi NE
Click for Map
Fri -- 02:42 AM PDT     -0.00 knots Slack
Fri -- 06:02 AM PDT     Sunrise
Fri -- 07:24 AM PDT     -1.38 knots Max Ebb
Fri -- 08:31 AM PDT     Moonset
Fri -- 10:09 AM PDT     0.00 knots Slack
Fri -- 12:52 PM PDT     1.41 knots Max Flood
Fri -- 04:16 PM PDT     -0.01 knots Slack
Fri -- 07:57 PM PDT     -0.71 knots Max Ebb
Fri -- 08:26 PM PDT     Sunset
Fri -- 10:04 PM PDT     0.00 knots Slack
Fri -- 10:30 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.80.4-0.1-0.5-0.9-1.2-1.4-1.3-0.8-0.10.71.31.41.20.80.2-0.2-0.5-0.7-0.7-0.5-00.5

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (6,6,7,8)
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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.