Saturday, April29, 2017 L-36.com


Marine Weather and Tides
Santa Clara, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:13AMSunset 7:56PM Friday April 28, 2017 10:38 PM PDT (05:38 UTC) Moonrise 7:19AMMoonset 9:43PM Illumination 11% Phase: Waxing Crescent; Moon at 3 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
    EDIT      (on/off)   Help
PZZ560 Pigeon Point To Point Pinos To 10 Nm- 909 Pm Pdt Fri Apr 28 2017
.small craft advisory in effect through late Saturday night...
Tonight..NW winds 15 to 25 kt...decreasing to 10 to 20 kt late. Wind waves 3 to 5 ft. NW swell 8 to 10 ft at 10 seconds.
Sat..N winds 10 to 20 kt...becoming northwest 15 to 25 kt in the afternoon. Wind waves 2 to 3 ft...becoming 3 to 5 ft in the afternoon. NW swell 6 to 8 ft at 11 seconds.
Sat night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 6 to 7 ft at 11 seconds.
Sun..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 7 to 8 ft at 10 seconds.
Sun night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 7 to 9 ft at 9 seconds.
Mon..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 9 to 11 ft.
Tue..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 7 to 9 ft.
Wed..NW winds 10 kt. Wind waves 2 ft or less. NW swell 6 to 8 ft...shifting to the west 5 to 7 ft and south 3 ft.
PZZ500 909 Pm Pdt Fri Apr 28 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will remain strong and gusty through the weekend as strong high pressure remains offshore. Occasional gale force gusts are possible across the coastal waters. In addition to gusty winds...steep fresh swells with relatively short periods will make seas hazardous this weekend.

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


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 290350
afdmtr
area forecast discussion
national weather service san francisco bay area
850 pm pdt Fri apr 28 2017

Synopsis Sunny and warmer today and becoming breezy again
tonight in the hills under offshore flow and clear skies. Winds
will ease Saturday morning giving way to a clear and warm weekend.

Another round of offshore winds possible Monday morning otherwise
continued seasonably warm and dry through Wednesday. Cooling
trend may start by the end of next week.

Discussion As of 8:50 pm pdt Friday... Clear skies and breezy
conditions prevail this evening under the continued influence of
high pressure across the region. Temperatures finished off the day
under clear skies and temperatures in the 60s along the coast and
70s inland with moderate north to northwesterly winds around 10
to 20 mph.

A thermal trough situated along the california coast coupled with
high pressure ridging across the pacific northwest will result in
a tighter pressure gradient across northern and central california
tonight. The northerly gradient from acv to sfo is currently at 7
mb and expected to strengthen overnight. While not as strong as
yesterday northerly winds are forecast to increase to around 15 to
25 mph tonight into Saturday morning with gusts to around 35 mph.

Strongest winds will be over the elevated terrain of the north
and east bays.

Winds should taper by midday Saturday but remain mainly offshore
as high pressure fills in over the great basin. The gradual
warming trend that we have seen over the last couple of day will
kick into high gear Saturday and continue through early next week.

Temperatures will warm anywhere from 3 to 6 degrees Saturday with
an increase of 2 to 3 degrees each day thereafter. High in the
70s and 80s are expected across the region this weekend with some
lower 90s expected in the warmest inland valleys early next week.

Warmest days are expected to be Tuesday and Wednesday.

Winds will remain mostly offshore through midweek with some
period of gusty winds possible as the combination of the thermal
trough and strengthening high pressure over the eastern pacific
tighten the gradient over the region once again.

Clear skies and warm temperatures will prevail through midweek
before the ridge of high pressure begins to break down over the
west coast. By Thursday temperatures will begin to cool back down
to seasonal norms with widespread 60s and 70s. Until then please
use caution when outdoor and protect young children, the elderly
and pets from dehydration, sunburns and heat exhaustion while
never leaving children or pets unattended in vehicles.

Aviation As of 4:30 pm pdt Friday... For 00z tafs.VFR through
the forecast period. Locally gusty west to northwest winds this
evening will gradually diminish overnight. Winds will not be as
strong on Saturday afternoon/evening.

Vicinity of ksfo...VFR. W-nw winds gusting to around 30 knots at
ksfo through 04z then gradually diminishing through the remainder
of the evening and overnight. Winds late Saturday afternoon will
not be as strong as late Friday.

Sfo bridge approach... Similar to ksfo except winds not quite as
strong.

Monterey bay terminals...VFR. Moderate west winds late afternoon
and early evening. Otherwise light winds.

Marine As of 2:20 pm pdt Friday... Northwest winds will remain
strong and gusty through the weekend as high pressure sits off the
coast. Occasional gale force gusts are possible across the
coastal waters. Steep fresh swells with relatively short periods
will make seas hazardous this weekend... In addition to the gusty
winds.

Mtr watches/warnings/advisories
Tngt Sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pigeon pt to pt pinos 0-10 nm
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
sca... Mry bay until 3 am
public forecast: cw
aviation: dykema
marine: bam
visit us at

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 19 mi50 min W 8 G 8.9 60°F 64°F1016 hPa
AAMC1 - 9414750 - Alameda, CA 34 mi50 min NW 2.9 G 6 63°F 63°F1016.9 hPa
LNDC1 35 mi56 min NW 5.1 G 8 63°F 1016.6 hPa
OBXC1 37 mi50 min 61°F 49°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 37 mi50 min NNW 7 G 8.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 38 mi50 min N 7 G 8 61°F 1016.8 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 39 mi62 min W 5.1 G 7 64°F 1015.8 hPa
PXSC1 39 mi50 min 64°F 39°F
FTPC1 - 9414290 - San Francisco, CA 42 mi50 min SSW 7 G 12 55°F 56°F1017.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 44 mi50 min N 7 G 12 65°F 1017 hPa
46092 - MBM1 44 mi91 min W 18 52°F 1014.7 hPa (+0.7)
RCMC1 - 9414863 - Richmond, CA 46 mi50 min N 7 G 7 64°F 58°F1016.7 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 46 mi50 min N 6 G 8 64°F 1016.5 hPa
UPBC1 47 mi50 min N 11 G 14
MZXC1 - 9415102 - Martinez-Amorco CA 47 mi50 min N 8.9 G 14 67°F 61°F1017 hPa28°F
PCOC1 - 9415144 - Port Chicago, CA 47 mi50 min WNW 6 G 7 65°F 61°F1016.6 hPa
46237 - San Francisco Bar, CA (142) 48 mi68 min 54°F7 ft

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last
24hr
W18
G23
NW16
G20
W12
G15
NW12
G15
SW4
S3
SW1
SW2
S2
NW4
NW3
NW7
G10
NW6
G9
NW11
G14
NW10
G16
NW14
G18
W15
NW14
G17
W13
G16
NW12
W12
W10
W6
W6
1 day
ago
W15
G23
W14
G18
W12
W11
G16
W10
G14
W8
G11
W11
G14
W12
W7
W5
W1
NW2
N5
G9
N7
W14
W13
G19
NW16
NW20
W19
G23
W24
G30
W28
G35
W26
W24
G30
W19
G23
2 days
ago
SE4
W5
S1
NW1
W9
W8
W8
G11
W9
W13
W13
W13
W9
W10
G13
NW10
G15
W9
G12
W9
G16
W10
G15
W17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA2 mi45 minW 410.00 miA Few Clouds58°F48°F70%1016.7 hPa
San Jose / Reid / Hillv, CA5 mi51 minNW 510.00 miClear57°F48°F72%1017.6 hPa
Mountain View, Moffett Field, CA9 mi42 minN 010.00 miFair59°F44°F58%1017.2 hPa
Palo Alto Airport, CA14 mi51 minWNW 1010.00 miClear61°F44°F55%1016.3 hPa
San Carlos Airport, CA21 mi43 minWNW 610.00 miFair63°F39°F42%1016.9 hPa
Livermore, Livermore Municipal Airport, CA23 mi45 minNNW 910.00 miFair65°F28°F25%1015.9 hPa
Hayward, Hayward Air Terminal, CA23 mi44 minNNW 610.00 miFair63°F44°F50%1017.2 hPa

Wind History from SJC (wind in knots)
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last 24hrNW5NW7NW5W5N3W4CalmCalmCalmCalmNW6W10W7NW9W10
G17
W11W16
G23
NW18NW13
G21
NW11NW13
G23
NW11NW8W4
1 day ago3NW10NW7NW11NW8NW7NW6W6NW4W4CalmW6NW10NW9W8NW12NW15NW17NW14
G21
NW13NW16
G25
W13
G18
W9NW7
2 days agoNW6N5N3NW4CalmCalmCalmCalmSE3SE5SE3E3E4CalmNW8NW7NW12
G16
NW15NW15NW16NW16NW10NW13NW12

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Gold Street Bridge
Click for Map
Sat -- 02:54 AM PDT     10.51 feet High Tide
Sat -- 06:14 AM PDT     Sunrise
Sat -- 09:12 AM PDT     Moonrise
Sat -- 10:48 AM PDT     -1.23 feet Low Tide
Sat -- 04:44 PM PDT     8.10 feet High Tide
Sat -- 07:56 PM PDT     Sunset
Sat -- 10:52 PM PDT     2.08 feet Low Tide
Sat -- 11:47 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.97.69.710.5108.76.74.420.2-1-1.2-0.21.746.27.78.17.56.24.73.32.42.1

Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Dumbarton Point 2.3 mi NE
Click for Map
Sat -- 12:22 AM PDT     1.26 knots Max Flood
Sat -- 03:12 AM PDT     -0.00 knots Slack
Sat -- 06:14 AM PDT     Sunrise
Sat -- 08:01 AM PDT     -1.62 knots Max Ebb
Sat -- 09:12 AM PDT     Moonrise
Sat -- 10:38 AM PDT     0.01 knots Slack
Sat -- 01:24 PM PDT     1.66 knots Max Flood
Sat -- 04:56 PM PDT     -0.00 knots Slack
Sat -- 07:56 PM PDT     Sunset
Sat -- 08:39 PM PDT     -0.82 knots Max Ebb
Sat -- 10:39 PM PDT     0.00 knots Slack
Sat -- 11:48 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.20.80.2-0.3-0.8-1.2-1.5-1.6-1.3-0.50.31.21.61.61.30.7-0-0.4-0.6-0.8-0.8-0.40.2

Weather Map and Satellite Images
       (on/off)   Help
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)
      (on/off)   Help

Ground Weather Radar Station San Francisco Bay Area, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.