Tuesday, March28, 2017 L-36.com


Marine Weather and Tides
San Rafael, 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 6:57AMSunset 7:31PM Tuesday March 28, 2017 8:20 PM PDT (03:20 UTC) Moonrise 6:37AMMoonset 7:27PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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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PZZ530 San Pablo Bay Suisun Bay The West Delta And San Francisco Bay North Of The Bay Bridge- 224 Pm Pdt Tue Mar 28 2017
Tonight..NW winds 5 to 15 kt.
Wed..W winds 5 to 15 kt.
Wed night..W winds 10 to 20 kt.
Thu..NW winds 10 to 20 kt.
Thu night..NW winds 5 to 15 kt.
Fri..N winds 15 to 25 kt.
Sat..NW winds 10 kt.
Sun..W winds 10 to 20 kt.
PZZ500 224 Pm Pdt Tue Mar 28 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate and gusty northwest winds will continue through the next several days as high pressure strengthens over the eastern pacific and tightens the pressure gradient along the central coast of california. Northwest swell will slowly decrease some tonight and will continue to through about Thursday morning before building again late Thursday and through the weekend.

7 Day Forecast for Marine Location Near San Rafael, CA
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location: 37.98, -122.47     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 290029
afdmtr
area forecast discussion
national weather service san francisco bay area
529 pm pdt Tue mar 28 2017

Synopsis A gradual warming trend will continue through
Wednesday as high pressure builds over the region. Cooler and
breezy conditions return on Thursday as a cold front sweeps
through the region. While a few light rain showers will be
possible, most locations will remain dry. The ridge will then
rebuild back over the region late in the week resulting in another
warming trend heading into the upcoming weekend.

Discussion As of 01:48 pm pdt Tuesday... High pressure building
over the region has resulted in mostly sunny skies and an uptick
in daytime temperatures compared to yesterday. The ridge aloft
will continue to build and bring even warmer temperatures on
Wednesday with inland areas reaching into the 70s to lower 80s.

Dry weather conditions will also prevail.

By late Wednesday night, the forecast models continue to indicate
a mid/upper level trough will push into the pacific northwest. As
the trough pushes inland, a cold front will drop southward into
northern california and bring the potential for light
precipitation. While the best chances for measurable rainfall will
be to our north, cannot rule out some light rain showers across
the north bay Wednesday night into early Thursday morning. Light
precipitation in the form of showers or sprinkles may drop as far
south as the central coast just before sunrise Thursday morning.

With that said, most locations will remain dry or only see trace
amounts of rainfall from this passing system. Temperatures cool in
wake of the frontal passage with only 60s and lower 70s expected
for Thursday afternoon. Northerly winds will also increase as the
main mid/upper level low slides down into the desert southwest and
the surface pressure gradient tightens along the coast. Breezy
conditions then persist into Friday before the mid/upper level
trough pushes further to the east. May see a few degrees of
warming by Friday afternoon, yet conditions will feel cool given
the breezy northerly winds.

High pressure is forecast to rebuild back across the region late
Friday into the upcoming weekend. As a result, inland areas will
rebound back into the 70s and lower 80s with mostly sunny skies.

Medium range guidance suggest dry weather and seasonably mild
temperatures will persist into early next week as well with the
ridge aloft. While confidence this far out remains low, the models
do hint at the potential return to a wetter pattern late next
week.

Aviation As of 5:28 pm pdt Tuesday... Near high confidenceVFR
persists for the evening hours. Late afternoon visible imagery as
well as 24 hour trends indicate warmer and drier conditions all
supporting ongoingVFR; it's a gorgeous spring day out there.

While there's presently an absence of coastal stratus and/or fog
lower level inversions are strengthening under mid-upper level
ridging and there could be a more organized stratus and/or fog
pattern visiting the coastline as early as Wednesday afternoon
and evening. This would precede the passage of a cold front
Thursday morning thus an intrusion of stratus and/or fog is
increasingly likely from later Wednesday evening into Thursday
morning. Just a heads up, following TAF cycles may need to include
more in the way of cigs.

Vicinity of ksfo... Westerly winds 20 to near 30 knots til 05z then
lighter westerly winds forecast for the remainder of tonight. Gusty
westerly winds resume on Wednesday.VFR.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Westerly winds occasionally gusting to near
20 knots early this evening, lighter winds quickly returning thereafter.

Vfr except possibly could see local MVFR CIGS near sunrise Wednesday,
otherwise it looks favorable forVFR in 00z TAF cycle. Stratus and/or
fog are possible Wednesday evening and night.

Marine As of 4:41 pm pdt Tuesday... Moderate and gusty northwest
winds will continue through the next several days as high pressure
strengthens over the eastern pacific and tightens the pressure
gradient along the central coast of california. Northwest swell
will slowly decrease some tonight and will continue to through
about Thursday morning before building again late Thursday and
through the weekend.

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... Rough bar advisory for sf bar until 3 am
sca... Mry bay until 9 pm
public forecast: rgass
aviation: canepa
marine: bm
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCMC1 - 9414863 - Richmond, CA 5 mi51 min NW 8.9 G 12 62°F 58°F1021.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 8 mi51 min WNW 16 G 20 64°F 1021.5 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi51 min SW 7 G 9.9 62°F 1021.3 hPa
FTPC1 - 9414290 - San Francisco, CA 12 mi51 min WSW 8 G 11 61°F 57°F1021.7 hPa
PXSC1 13 mi51 min 65°F 45°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 14 mi51 min NW 4.1 G 7
OKXC1 - 9414776 - Oakland (Berth 34), CA 14 mi51 min NW 6 G 8 62°F 1021.5 hPa
OBXC1 14 mi51 min 63°F 49°F
LNDC1 16 mi57 min NNW 6 G 9.9 65°F 1021.4 hPa
46237 - San Francisco Bar, CA (142) 16 mi51 min 56°F10 ft
AAMC1 - 9414750 - Alameda, CA 17 mi51 min W 2.9 G 5.1 64°F 60°F1021.8 hPa
UPBC1 19 mi159 min N 9.9 G 13
MZXC1 - 9415102 - Martinez-Amorco CA 19 mi51 min WNW 9.9 G 12 64°F 58°F1021.4 hPa49°F
PCOC1 - 9415144 - Port Chicago, CA 23 mi51 min W 11 G 12 64°F 58°F1020.8 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 25 mi91 min NW 21 G 27 56°F 55°F11 ft1022.1 hPa (-0.0)
SFXC1 - San Francisco Bay Reserve, CA 28 mi96 min NE 6 68°F 1020 hPa47°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 31 mi51 min NNE 8 G 8.9 67°F 1020.6 hPa
RTYC1 - 9414523 - Redwood City, CA 35 mi51 min W 13 G 17 61°F 61°F1021 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 48 mi91 min NW 23 G 29 57°F 56°F13 ft1021.7 hPa (-0.4)
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 48 mi41 min NW 25 G 31 56°F 55°F1022.9 hPa49°F

Wind History for Richmond, CA
(wind in knots)    EDIT      (on/off)   Help
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NW13
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NW7
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NW9
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G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA12 mi26 minESE 510.00 miFair63°F46°F56%1021.7 hPa
Napa, Napa County Airport, CA19 mi27 minWNW 610.00 miFair61°F51°F70%1020.3 hPa
Concord, Buchanan Field, CA22 mi28 minWNW 810.00 miFair66°F48°F52%1019.6 hPa
Oakland, Metro Oakland International Airport, CA23 mi28 minNW 510.00 miA Few Clouds62°F50°F65%1021.6 hPa

Wind History from DVO (wind in knots)
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Last 24hrNW8
G15
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NW11NW17
G23
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NW16NW13
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SW14CalmE4
1 day agoW9W10
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W7E4NE5CalmNW6NW5N9
G14
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2 days agoCalm4E4NE35CalmCalmCalmCalmCalmCalmCalmCalmCalmE3SE6SE10SE7
G13
S8S7SW11S16
G22
S11S5

Tide / Current Tables for Point San Quentin, San Francisco Bay, California
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Point San Quentin
Click for Map
Tue -- 01:08 AM PDT     5.69 feet High Tide
Tue -- 07:00 AM PDT     Sunrise
Tue -- 07:07 AM PDT     0.38 feet Low Tide
Tue -- 07:37 AM PDT     Moonrise
Tue -- 01:27 PM PDT     5.56 feet High Tide
Tue -- 07:21 PM PDT     0.42 feet Low Tide
Tue -- 07:29 PM PDT     Sunset
Tue -- 08:27 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.25.75.44.53.21.80.80.40.61.52.63.84.95.55.54.83.62.210.50.61.32.53.8

Tide / Current Tables for Point San Pablo Midchannel, San Pablo Bay, California Current
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Point San Pablo Midchannel
Click for Map
Tue -- 02:54 AM PDT     -0.00 knots Slack
Tue -- 05:49 AM PDT     -2.57 knots Max Ebb
Tue -- 07:00 AM PDT     Sunrise
Tue -- 07:36 AM PDT     Moonrise
Tue -- 09:22 AM PDT     0.00 knots Slack
Tue -- 12:09 PM PDT     2.03 knots Max Flood
Tue -- 03:20 PM PDT     -0.00 knots Slack
Tue -- 06:04 PM PDT     -2.45 knots Max Ebb
Tue -- 07:29 PM PDT     Sunset
Tue -- 08:26 PM PDT     Moonset
Tue -- 09:22 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.71-0.1-1.5-2.4-2.6-2.3-1.6-0.50.71.721.91.30.4-0.9-2-2.4-2.2-1.6-0.50.81.9

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 (23,6,7,8)
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Ground Weather Radar Station Sacramento, 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.