Thursday, October17, 2019 L-36.com


Marine Weather and Tides
Richmond, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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 7:18AMSunset 6:30PM Thursday October 17, 2019 10:32 AM PDT (17:32 UTC) Moonrise 8:08PMMoonset 9:54AM Illumination 83% Phase: Waning Gibbous; Moon at 19 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 The San Francisco Bay North Of The Bay Bridge- 859 Am Pdt Thu Oct 17 2019
.small craft advisory in effect from 2 pm pdt this afternoon through this evening...
Today..W winds 5 to 15 kt increasing to 15 to 25 kt in the afternoon.
Tonight..NW winds 5 to 15 kt.
Fri..W winds 5 to 15 kt.
Fri night..W winds 5 to 15 kt.
Sat..SW winds 5 to 15 kt. A slight chance of rain.
Sat night..W winds 5 to 15 kt.
Sun..NW winds 10 to 20 kt.
Mon..NW winds 5 to 15 kt.
PZZ500 859 Am Pdt Thu Oct 17 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate northwest winds will continue over the waters through Friday. A large, northwest swell will arrive this afternoon with the largest waves occurring Thursday night and Friday. The northwest swell will persist as the dominant wave through the weekend, waves will slowly reduce from their peak heights but will remain at hazard levels for small craft.


7 Day Forecast for Marine Location Near Richmond, CA
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location: 37.91, -122.38     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 171551
afdmtr
area forecast discussion
national weather service san francisco bay area
851 am pdt Thu oct 17 2019

Synopsis A weakening frontal boundary pushing through the
central coast this morning brought light rain or coastal drizzle
to areas. Expect cooler, breezy conditions to develop in wake of
the frontal passage this afternoon and continue through Saturday.

A warming and drying trend will begin over the weekend and
continue into next week.

Discussion As of 8:51 am pdt Thursday... Satellite imagery
shows the frontal boundary now has moved through much of the bay
area, and clouds are decreasing from north to south. Rainfall
amounts were light, generally a few hundredths at a handful of
places. Mt. Diablo checked in with 0.08" which was the most noted.

Look for northwest winds to increase by this afternoon and become
locally gusty at times along the coast and in the hills.

Temperatures will also be slightly cooler this afternoon,
especially in the hills and higher elevations where 50s and 60s
will be common. More widespread 60s are likely near the coast with
lower 70s possible in the interior valleys. Very little change is
anticipated on Friday, however it should be less windy.

Another quick-moving weather system will clip the north bay late
Friday night into Saturday morning. This system may produce a brief
period of light rain across mainly the north bay, leaving most of
the remainder of the region dry. As this system moves to the east,
a brief period of dry offshore winds will be possible over the
north bay by late Sunday night into early Monday. However, these
winds are not forecast to be strong. A subtle warming trend is
also expected through the upcoming weekend as high pressure builds
over the eastern pacific.

This high pressure ridge is then progged to rebuild into
california by the middle of next week. This will bring a warming
and drying trend, along with periods of offshore flow. Dry
conditions will also persist through the extended forecast period.

Thus, will need to continue to monitor the potential for fire
weather concerns.

Aviation As of 4:45 am pdt Thursday... Weak frontal passage
currently is bringing a spectrum of MVFR to ifr CIGS across the
bay area. Clearing will be strongly dependent on the movement of
the front, but it should transition toVFR conditions from north
to south through the morning hours. Breezy northwest winds will
develop by midday, lasting through the afternoon.

Vicinity of ksfo... Borderline MVFR ifr CIGS for the morning hours,
becomingVFR by the late morning. Winds will be onshore,
increasing through the day with gusts approaching 25 kt in the
afternoon.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Ifr MVFR CIGS and or vis due to frontal
cloud passage currently. Transition toVFR conditions around
midday. Increasing, breezy onshore winds through the afternoon.

Marine As of 2:33 am pdt Thursday... Moderate northwest winds
will continue over the waters through Friday. A large, northwest
swell will arrive this afternoon with the largest waves occurring
Thursday night and Friday. The northwest swell will persist as the
dominant wave through the weekend, waves will slowly reduce from
their peak heights but will remain at hazard levels for small craft.

Mtr watches warnings advisories
Tday High surf advisory... Caz006-505-509-529-530
sca... Pigeon pt to pt pinos 0-10 nm from 9 am
sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 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 from 11 am
sca... Mry bay from 11 am
sca... Sf bay from 2 pm
public forecast: sims
aviation: dk
marine: dk
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPXC1 - 9414847 - Richmond (Point Potrero), CA 1 mi45 min WNW 1 G 2.9 63°F 1015.2 hPa
RCMC1 - 9414863 - Richmond, CA 2 mi45 min 59°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 4 mi58 min NNW 8 60°F 1015 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 7 mi45 min NNW 5.1 G 7 1014.9 hPa
PXSC1 7 mi45 min 61°F 47°F
OBXC1 8 mi51 min 60°F 49°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 8 mi51 min NW 4.1 G 6
PXOC1 - 9414311 - San Francisco (Pier 1), CA 8 mi45 min WSW 6 G 9.9 60°F 1013.9 hPa
FTPC1 - 9414290 - San Francisco, CA 9 mi51 min SW 8 G 9.9 58°F 57°F1015.3 hPa
AAMC1 - 9414750 - Alameda, CA 10 mi51 min WNW 4.1 G 6 61°F 61°F1015.3 hPa
LNDC1 10 mi45 min NW 6 G 8.9 1014.8 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi45 min WNW 5.1 G 7 59°F 1014.5 hPa
UPBC1 16 mi45 min W 15 G 18
MZXC1 - 9415102 - Martinez-Amorco CA 16 mi51 min W 15 G 17 58°F 63°F1014.4 hPa
46237 - San Francisco Bar, CA (142) 16 mi33 min 55°F6 ft
PCOC1 - 9415144 - Port Chicago, CA 21 mi45 min W 13 G 16 1014.5 hPa
SFXC1 - San Francisco Bay Reserve, CA 27 mi108 min WNW 7 56°F 1013 hPa51°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 27 mi23 min NW 18 G 19 56°F 56°F1016.4 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 28 mi51 min WNW 11 G 17 61°F 1013.8 hPa
RTYC1 - 9414523 - Redwood City, CA 29 mi45 min W 11 G 15 1015.8 hPa
PRYC1 - 9415020 - Point Reyes, CA 32 mi45 min 1016.2 hPa

Wind History for Point Potrero Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA17 mi40 minW 710.00 miA Few Clouds62°F48°F62%1015 hPa
Concord, Buchanan Field, CA18 mi40 minWNW 1110.00 miFair63°F44°F50%1013.1 hPa
Novato / Gnoss Field, CA19 mi38 minWNW 15 G 2310.00 miFair61°F42°F52%1014.9 hPa
San Francisco, San Francisco International Airport, CA20 mi37 minW 199.00 miA Few Clouds and Breezy62°F48°F62%1015.1 hPa
Napa, Napa County Airport, CA21 mi39 minN 010.00 miFair60°F46°F62%1013.9 hPa
Hayward, Hayward Air Terminal, CA22 mi39 minW 810.00 miFair62°F48°F62%1016 hPa

Link to 5 minute data for KOAK

Wind History from OAK (wind in knots)
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Last 24hrW3SW4SW4W4W8W13W10W13W9W7W4SW5W10W6W7W6W7W8W9W7W8NW5W8W7
1 day agoCalmNW5W10W7W7W5W4NW9W10W6CalmW3CalmCalmN3CalmN3NE3CalmNE3NE3CalmCalmCalm
2 days agoW6SW6W7NW10NW8NW11NW11NW7NW7NW7NW5NW4NW5CalmN3E4CalmN4N4NE5NE4E3W4N3

Tide / Current Tables for Richmond Inner Harbor, San Francisco Bay, California
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Richmond Inner Harbor
Click for Map
Thu -- 03:17 AM PDT     4.66 feet High Tide
Thu -- 07:19 AM PDT     Sunrise
Thu -- 08:20 AM PDT     2.47 feet Low Tide
Thu -- 10:54 AM PDT     Moonset
Thu -- 02:23 PM PDT     5.80 feet High Tide
Thu -- 06:29 PM PDT     Sunset
Thu -- 09:08 PM PDT     Moonrise
Thu -- 09:11 PM PDT     0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.73.64.34.64.64.13.42.82.52.63.13.84.65.35.85.75.14.12.71.50.50.10.30.9

Tide / Current Tables for Point Richmond .5 mi W, San Francisco Bay, California Current
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Point Richmond .5 mi W
Click for Map
Thu -- 01:27 AM PDT     0.95 knots Max Flood
Thu -- 04:56 AM PDT     -0.01 knots Slack
Thu -- 07:05 AM PDT     -0.76 knots Max Ebb
Thu -- 07:19 AM PDT     Sunrise
Thu -- 09:42 AM PDT     0.00 knots Slack
Thu -- 10:54 AM PDT     Moonset
Thu -- 01:18 PM PDT     0.69 knots Max Flood
Thu -- 04:02 PM PDT     -0.00 knots Slack
Thu -- 06:29 PM PDT     Sunset
Thu -- 07:19 PM PDT     -1.27 knots Max Ebb
Thu -- 09:08 PM PDT     Moonrise
Thu -- 10:36 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.90.90.70.4-0-0.5-0.8-0.6-0.30.10.30.50.70.60.40-0.4-0.9-1.2-1.2-0.8-0.30.1

Weather Map
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wmap_P
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (13,3,4,5)
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Ground Weather Radar Station Sacramento, 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.