Wednesday, July17, 2019 L-36.com


Marine Weather and Tides
North Richmond, CA

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Sunrise 5:59AMSunset 8:32PM Wednesday July 17, 2019 9:23 AM PDT (16:23 UTC) Moonrise 8:23PMMoonset 5:38AM Illumination 100% Phase: Full Moon; Moon at 15 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- 849 Am Pdt Wed Jul 17 2019
Today..SW winds 5 to 10 kt, increasing to 10 to 15 kt this afternoon.
Tonight..SW winds 15 to 20 kt with gusts up to 25 kt.
Thu..SW winds 15 to 20 kt with gusts up to 30 kt.
Thu night..SW winds 15 to 20 kt with gusts up to 25 kt.
Fri..SW winds 15 to 20 kt with gusts up to 25 kt.
Fri night..SW winds 10 to 15 kt.
Sat..SW winds 10 to 15 kt.
Sun..SW winds 10 to 15 kt.
PZZ500 849 Am Pdt Wed Jul 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 across the waters north of point reyes through tomorrow, with lighter northwest winds elsewhere. Wind driven northwest seas will be locally steep and hazardous to small craft vessels. Light long period southerly swell will continue to be the dominant swell group through at least Thursday.


7 Day Forecast for Marine Location Near North Richmond, CA
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location: 38, -122.4     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 171600
afdmtr
area forecast discussion
national weather service san francisco bay area
900 am pdt Wed jul 17 2019

Synopsis Slight cooling is forecast for most areas today. More
significant cooling is expected on Thursday and Friday,
especially inland. Also, night and morning low clouds will become
more widespread over the next few days. Temperatures will begin
to increase by late in the weekend, but likely remain below
seasonal averages through Sunday. Temperatures are then expected
to warm to about average, or slightly above average, next week.

Discussion As of 08:59 am pdt Wednesday... Stratus which spread
inland overnight continues to dissipate this morning with
temperatures running in the upper 50s to lower 60s. As mentioned
in the previous discussion, the deeper marine layer in place and
weak onshore flow should allow for slightly cooler conditions
across the region this afternoon. However, mostly sunny conditions
are likely region-wide with the coolest conditions near the coast
(60s to middle 70s in the warmer locations) with more widespread
80s inland (lower 90s in the warmest interior locations). With
this said, no significant changes to the ongoing forecast other
than minor adjustments to sky cover based on latest satellite
imagery. For additional details, please read the previous forecast
discussion below.

Prev discussion As of 4:00 am pdt Wednesday... The fort ord
profiler indicated a rapid deepening of the marine layer last
evening. Based on current satellite imagery, the depth of the
marine layer is likely between 1500 and 2000 feet. Low clouds have
developed as far inland as the pacheco pass, but inland
development farther to the north across the sf bay area has been
somewhat limited. This is likely due to the fact that a moderate
4.5 mb pressure gradient remains in place from acv to sfo. The
temperature forecast for today is rather tricky. On the one hand,
a deeper marine layer should mean much cooler temperatures. But on
the other hand, onshore flow remains weak and the models forecast
slight warming of the airmass aloft by this afternoon. The most
likely outcome will be slightly cooler temperatures in most areas
today.

The northerly surface gradient is forecast to weaken tonight which
should result in more widespread inland development of low clouds
by Thursday morning. Meanwhile, an upper trough currently
settling into the pacific northwest is forecast to sag slowly south
into northern california tomorrow through Friday, resulting in
further deepening of the marine layer. In addition, the models
develop a low level cyclonic circulation center off the north bay
coast by tomorrow afternoon, and then maintain a weak surface low
off our coast through the end of the week. The resulting
southerly low level flow along our coast will more efficiently
transport marine air inland tomorrow and Friday. Thus, more
significant cooling is expected over the next two days,
particularly in areas that cool more readily during southerly
flow such as the north bay valleys and santa cruz county. Some
inland areas may cool by as much as 15 degrees by Friday and low
clouds will likely linger into the afternoon hours in some areas.

The upper trough to our north is forecast to move to the east by
the weekend, which will allow for modest warming by Sunday. Even
so, temperatures will likely remain at least slightly cooler than
seasonal averages through the upcoming weekend.

In the longer range, the GFS and ECMWF agree that an upper ridge
will quickly amplify across the west early next week, with the
ridge axis aligned from the four corners northward to the
northern rockies. Heights will rise as far west as california as
this ridge strengthens, but a trough offshore along 140w is
expected to prevent the ridge from expanding more strongly over
california as had been previously forecast. Thus, the amount of
inland warming next week now looks to be rather modest, with
temperatures expected to warm only slightly above seasonal
averages.

Aviation As of 4:45 am pdt Wednesday... Ft ord profiler shows
the marine layer is becoming less defined. This is in response to
an upper trough moving through the area cooling the airmass aloft.

There is also a low level cyclonic circulation at 925 mb over the
area which is bringing in a drier northerly flow. Stratus which
came in earlier is now starting to retreat in response to this
drier flow. Thus we should seeVFR conditions for sfo and the
approach today with just some early morning scattered clouds near
the airport. Stratus is more organized in the mry bay area and
there could be some morning drizzle as well.

Vicinity of ksfo...VFR expected today. Could see a light north to
northeast wind this morning up to 6 kt. West winds gusting up to
25 kt after 22z.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Ifr CIGS with patchy drizzle through 17z.

Becoming MVFR until 19z.

Marine As of 08:59 am pdt Wednesday... Moderate northwest winds
across the waters north of point reyes through tomorrow, with
lighter northwest winds elsewhere. Wind driven northwest seas will
be locally steep and hazardous to small craft vessels. Light long
period southerly swell will continue to be the dominant swell
group through at least Thursday.

Mtr watches warnings advisories
Tngt Sca... Pt arena to pigeon pt 10-60 nm
sca... Pt arena to pt reyes 0-10 nm until 3 am
sca... Pigeon pt to pt piedras blancas 10-60 nm until 9 pm
public forecast: rgass dykema
aviation: W pi
marine: drp
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCMC1 - 9414863 - Richmond, CA 5 mi53 min S 4.1 G 8 63°F1012.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 7 mi53 min SW 6 G 8.9 59°F 1013.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 8 mi53 min W 5.1 G 8.9 61°F 1012.4 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 8 mi42 min SE 6 60°F 1013 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 14 mi53 min E 5.1 G 6 60°F 1011.9 hPa
FTPC1 - 9414290 - San Francisco, CA 14 mi53 min W 5.1 G 8.9 58°F 61°F1013.4 hPa
OBXC1 14 mi53 min 60°F 58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 14 mi53 min S 2.9 G 5.1 61°F 1013 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 14 mi53 min S 1.9 G 5.1
UPBC1 15 mi53 min NW 8 G 8.9
MZXC1 - 9415102 - Martinez-Amorco CA 15 mi53 min WNW 8 G 8.9 62°F 69°F1012.5 hPa
LNDC1 16 mi53 min SE 4.1 G 5.1 62°F 1012.8 hPa
AAMC1 - 9414750 - Alameda, CA 17 mi53 min SW 1.9 G 2.9 1013.4 hPa
46237 - San Francisco Bar, CA (142) 19 mi53 min 57°F5 ft
PCOC1 - 9415144 - Port Chicago, CA 20 mi53 min W 8.9 G 12 62°F 69°F1012.5 hPa
SFXC1 - San Francisco Bay Reserve, CA 24 mi98 min WNW 9.9 60°F 1012 hPa57°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 27 mi53 min NW 6 G 8 66°F 1011.9 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 29 mi33 min S 1.9 G 3.9 54°F 53°F6 ft1013.6 hPa
PRYC1 - 9415020 - Point Reyes, CA 31 mi53 min 52°F1013 hPa
RTYC1 - 9414523 - Redwood City, CA 35 mi53 min E 1.9 G 2.9 63°F 73°F1013.4 hPa

Wind History for Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA13 mi48 minN 010.00 miFair63°F55°F77%1013.2 hPa
Napa, Napa County Airport, CA16 mi29 minN 010.00 miPartly Cloudy62°F55°F80%1012.1 hPa
Concord, Buchanan Field, CA19 mi30 minS 510.00 miFair68°F54°F61%1011.1 hPa
Petaluma Municipal Airport, CA21 mi28 minVar 39.00 miFair64°F57°F78%1013.2 hPa
Oakland, Metro Oakland International Airport, CA23 mi30 minSSE 810.00 miA Few Clouds65°F54°F68%1013 hPa

Wind History from DVO (wind in knots)
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Last 24hrCalm44SE9SW12
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SE4E4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalm3N5
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Calm4CalmCalmNE5NE4CalmNW4CalmCalmN4Calm
2 days agoCalmE4E64
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SW9S9S9S8S13SE5NE3SE7CalmCalmCalmCalmNE5E4CalmNW3CalmCalm

Tide / Current Tables for Pinole Point, San Pablo Bay, California
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Pinole Point
Click for Map
Wed -- 01:03 AM PDT     6.47 feet High Tide
Wed -- 06:00 AM PDT     Sunrise
Wed -- 06:37 AM PDT     Moonset
Wed -- 08:09 AM PDT     -0.65 feet Low Tide
Wed -- 03:15 PM PDT     5.04 feet High Tide
Wed -- 08:00 PM PDT     2.69 feet Low Tide
Wed -- 08:30 PM PDT     Sunset
Wed -- 09:22 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.16.56.25.33.92.30.8-0.2-0.6-0.40.31.32.53.74.654.94.33.52.92.72.93.64.5

Tide / Current Tables for Pinole Point 1.2 mi W, San Pablo Bay, California Current
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Pinole Point 1.2 mi W
Click for Map
Wed -- 01:41 AM PDT     -0.00 knots Slack
Wed -- 05:41 AM PDT     -1.20 knots Max Ebb
Wed -- 06:00 AM PDT     Sunrise
Wed -- 06:37 AM PDT     Moonset
Wed -- 09:25 AM PDT     0.00 knots Slack
Wed -- 12:17 PM PDT     0.83 knots Max Flood
Wed -- 04:10 PM PDT     -0.00 knots Slack
Wed -- 06:19 PM PDT     -0.46 knots Max Ebb
Wed -- 08:21 PM PDT     0.00 knots Slack
Wed -- 08:30 PM PDT     Sunset
Wed -- 09:22 PM PDT     Moonrise
Wed -- 10:36 PM PDT     0.80 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.2-0.2-0.7-1-1.2-1.2-1.1-0.7-0.20.30.60.80.80.60.30-0.3-0.4-0.4-0.10.30.70.8

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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Wind Forecast for San Francisco/Monterey Bay Area, CA (12,3,4,5)
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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.