Saturday, May25, 2019 L-36.com


Marine Weather and Tides
Santa Clara, 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 5:50AMSunset 8:18PM Saturday May 25, 2019 7:55 PM PDT (02:55 UTC) Moonrise 12:24AMMoonset 10:54AM Illumination 54% Phase: Third Quarter Moon; Moon at 22 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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PZZ560 Coastal Waters From Pigeon Point To Point Pinos California Out To 10 Nm- 232 Pm Pdt Sat May 25 2019
.small craft advisory in effect from 9 pm pdt this evening through Sunday afternoon...
Rest of today..W winds 5 to 15 kt. Wind waves 2 ft or less. NW swell 7 to 9 ft at 10 seconds.
Tonight..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. NW swell 7 to 9 ft at 10 seconds. A slight chance of rain.
Sun..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. NW swell 8 to 9 ft at 10 seconds. A chance of rain.
Sun night..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 6 to 8 ft at 10 seconds. A slight chance of rain.
Memorial day..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft at 9 seconds.
Mon night..NW winds 10 to 20 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft at 9 seconds.
Tue..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. NW swell around 4 ft and sw around 3 ft.
Wed..NW winds 5 to 15 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft and sw around 3 ft.
PZZ500 232 Pm Pdt Sat May 25 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty northwest winds will continue through tonight with gale- force winds over the northern outer waters. Scattered showers and isolated Thunderstorms are possible on by early Sunday morning. Moderate northwest swell will continue through the weekend with steep fresh swell generated by the gusty winds.


7 Day Forecast for Marine Location Near Santa Clara, CA
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location: 37.38, -121.9     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 260034
afdmtr
area forecast discussion
national weather service san francisco bay area
534 pm pdt Sat may 25 2019

Synopsis Increasing clouds later this afternoon and evening
ahead of the next weather system. Rain showers will develop after
midnight into Sunday morning. Showers and isolated thunderstorms
continue on Sunday with cool daytime temperatures. Dry but cool
for memorial day. Gradual warming trend to near normal for the
work week with dry weather forecast.

Discussion As of 2:02 pm pdt Saturday... Interesting weather
pattern across california today. Earlier this morning there was
some showers and storms over northeast california with activity
firing over the northern sierra by midday. Meanwhile some rogue
thunderstorms are now firing in the southern san joaquin valley.

The bay area is seeing a nice Saturday with temps now warming into
the upper 60s and 70s away form the coast. Lingering coastal
clouds in the usual spots from half moon bay to monterey has kept
temps stuck in the upper 50s along the beaches.

All attention is on shortwave currently rotating west of astoria
oregon. For those watching from home this feature shows up nicely
on the goes-17 water vapor imagery. It'll be a blustery Saturday
evening as onshore winds and clouds increase ahead of this
incoming weather system.

All available model guidance shows showers developing after
midnight tonight as the core of the upper low reaches the north
bay by morning. Many areas should wake up to wet roads and the
pitter-patter of raindrops early Sunday morning. Showers and
isolated thunderstorms will continue on Sunday but there should be
a drying trend for the north bay by midday as the upper low drops
south. Rain totals on average of 0.10-0.25 with some areas
receiving no rain given the convective nature of the rainfall.

Even areas that remain dry on Sunday will be unseasonably cool
with highs in the upper 50s to mid 60s most locations.

Drying pattern develops by Sunday night but it'll be chilly in the
wake of the cold upper trough. Memorial day Monday looks dry but
continued unseasonably cool with highs mainly 60s and some lower
70s.

Next week should see a gradual return to more seasonable
temperatures but not seeing any real warm weather with a general
trough over the west coast.

Aviation As of 05:25 pm pdt Saturday... Marine stratus covers
much of the coast south of san francisco, otherwise skies are
clear to partly cloudy.VFR conditions currently prevail at all
sf bay area terminals, while MVFR ceiling onset has already
occurred at kmry and ksns. Very unusual weather circumstances for
this time of year to be developing late tonight into Sunday, as a
cold winter-like upper low plunges southward into our area. It
will bring gusty onshore winds, periods of -shra and shra, and
even a possibility of some thunderstorms and small hail. Primary
impacts look to be south of san francisco during the day on
Sunday.

Vicinity of ksfo...VFR conditions with moderately strong and gusty
onshore winds are forecast to continue through the evening rush,
but can't completely rule out the possibility of an earlier
short-lived MVFR cloud deck spilling through the gap into the
terminal area. With the approaching storm system, expect winds to
actually increase significantly out of the west during the late
night and morning hours, becoming strong and gusty, along with
developing rain showers.

Sfo bridge approach... Similar to ksfo, though more confident the
approach will remain clear through the evening hours than the
terminal itself.

Monterey bay terminals... MVFR ceilings are expected to prevail
through the night and into Wednesday morning. Risk of lowering to
ifr however is considered to be pretty low. With the approaching storm
system, expect winds to strengthen out of the west during the late
night and morning hours, becoming moderately strong and gusty,
along with developing rain showers.

Marine As of 01:42 pm pdt Saturday... Gusty northwest winds will
continue today and tonight with gale-force winds over the
northern outer waters. Scattered showers and isolated
thunderstorms are possible on Sunday. Moderate northwest swell
will continue through the weekend with steep fresh swell generated
by the gusty winds.

Mtr watches warnings advisories
Tngt Sca... Sf bay from 9 pm
sca... Mry bay from 9 pm
sca... Pigeon pt to pt pinos 0-10 nm from 9 pm
sca... Pt pinos to pt piedras blancas 0-10 nm from 9 pm
glw... Pt arena to pigeon pt 10-60 nm until 3 am
sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
sca... Rough bar advisory for sf bar
public forecast: rww
aviation: blier
marine: drp
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 19 mi37 min W 9.9 G 12 67°F1010.1 hPa
AAMC1 - 9414750 - Alameda, CA 34 mi43 min WSW 13 G 16 57°F 64°F1010.1 hPa
LNDC1 35 mi37 min WSW 8.9 G 13 1009.5 hPa
OBXC1 37 mi37 min 57°F 53°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 37 mi43 min SW 15 G 19
OKXC1 - 9414776 - Oakland (Berth 34), CA 38 mi37 min WSW 9.9 G 14 1009.4 hPa
PXSC1 39 mi37 min 58°F 51°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 39 mi37 min WSW 7 G 13 56°F 1008.4 hPa
ELXC1 - Elkhorn Slough Reserve, CA 40 mi70 min W 7 56°F 1012 hPa50°F
MLSC1 - Moss Landing, South Harbor, CA 40 mi95 min WSW 8.9 G 26 55°F 1012 hPa48°F
FTPC1 - 9414290 - San Francisco, CA 42 mi43 min WSW 11 G 16 55°F 58°F1009.6 hPa
46092 - MBM1 44 mi42 min W 12 55°F 56°F1011.2 hPa (-0.6)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 44 mi37 min SSW 11 G 14 57°F 1009.2 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 46 mi188 min WSW 12 61°F 1009 hPa
RCMC1 - 9414863 - Richmond, CA 46 mi37 min 61°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 46 mi43 min W 8 G 18 65°F 1007.4 hPa
UPBC1 47 mi37 min WSW 14 G 20
PCOC1 - 9415144 - Port Chicago, CA 47 mi37 min SW 8.9 G 14 63°F1008.1 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 47 mi43 min WSW 11 G 16 61°F 63°F1008.1 hPa47°F
46237 - San Francisco Bar, CA (142) 48 mi85 min 59°F6 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 49 mi65 min WNW 14 G 16 55°F 56°F8 ft1010.8 hPa (-0.7)

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, CA2 mi62 minNNW 1510.00 miMostly Cloudy62°F52°F70%1008.9 hPa
San Jose / Reid / Hillv, CA5 mi65 minNW 810.00 miPartly Cloudy63°F48°F60%1009.1 hPa
Mountain View, Moffett Field, CA9 mi2 hrsNW 810.00 miFair66°F48°F54%1009.3 hPa
Palo Alto Airport, CA14 mi68 minWSW 1210.00 miA Few Clouds61°F48°F63%1009.1 hPa
San Carlos Airport, CA21 mi68 minSW 810.00 miA Few Clouds59°F46°F63%1009.8 hPa
Hayward, Hayward Air Terminal, CA23 mi61 minW 1310.00 miFair58°F48°F70%1010.5 hPa
Livermore, Livermore Municipal Airport, CA23 mi62 minWNW 178.00 miFair60°F48°F65%1008.3 hPa

Wind History from SJC (wind in knots)
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Last 24hrNW11N11N7N5NW4NE3N5NE3CalmS5W3W9W6CalmSW33CalmN8NW9NW13N10NW12N13N15
1 day agoS8SE12S7S11S8S8SE7S6S10S6SE10S5S64343NW9NW85NW9NW12NW11NW17
2 days agoN9N6N4N5N4CalmSE6SE8S7S5S4S6SE11S8SE8SE6SE8SE7E8SW10S9S12S7
G15
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Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
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Sat -- 01:23 AM PDT     Moonrise
Sat -- 01:41 AM PDT     3.23 feet Low Tide
Sat -- 05:25 AM PDT     7.45 feet High Tide
Sat -- 05:51 AM PDT     Sunrise
Sat -- 11:54 AM PDT     Moonset
Sat -- 01:42 PM PDT     0.14 feet Low Tide
Sat -- 08:10 PM PDT     7.58 feet High Tide
Sat -- 08:18 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.93.33.34.367.37.46.964.73.31.90.90.30.20.92.34.15.877.67.46.75.8

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
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Sat -- 01:14 AM PDT     0.00 knots Slack
Sat -- 01:24 AM PDT     Moonrise
Sat -- 03:16 AM PDT     0.49 knots Max Flood
Sat -- 05:52 AM PDT     Sunrise
Sat -- 05:53 AM PDT     -0.00 knots Slack
Sat -- 10:41 AM PDT     -0.95 knots Max Ebb
Sat -- 11:55 AM PDT     Moonset
Sat -- 01:41 PM PDT     0.00 knots Slack
Sat -- 04:38 PM PDT     1.02 knots Max Flood
Sat -- 08:02 PM PDT     -0.01 knots Slack
Sat -- 08:18 PM PDT     Sunset
Sat -- 11:39 PM PDT     -0.47 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.10.30.50.40.3-0-0.3-0.5-0.8-0.9-0.9-0.7-0.30.20.7110.90.50-0.2-0.4-0.5

Weather Map and Satellite Images
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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 (22,6,7,8)
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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.