Thursday, June20, 2019 L-36.com


Marine Weather and Tides
Rollingwood, CA

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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 5:45AMSunset 8:36PM Thursday June 20, 2019 5:59 AM PDT (12:59 UTC) Moonrise 10:25PMMoonset 7:47AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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- 233 Am Pdt Thu Jun 20 2019
.small craft advisory in effect from noon pdt today through this evening...
Today..SW winds 5 to 15 kt...becoming W 15 to 25 kt with gusts up to 30 kt this afternoon.
Tonight..SW winds 15 to 25 kt...diminishing to 5 to 15 kt overnight.
Fri..SW winds 5 to 15 kt...becoming W 15 to 25 kt with gusts up to 30 kt this afternoon.
Fri night..SW winds 15 to 25 kt...diminishing to 5 to 15 kt overnight.
Sat..SW winds 5 to 15 kt...becoming W 15 to 25 kt with gusts up to 30 kt this afternoon.
Sat night..SW winds 15 to 25 kt...diminishing to 5 to 15 kt overnight.
Sun..SW winds 5 to 15 kt...becoming W 15 to 25 kt with gusts up to 30 kt this afternoon.
Mon..SW winds 5 to 15 kt...becoming W 15 to 25 kt with gusts up to 30 kt this afternoon.
PZZ500 233 Am Pdt Thu Jun 20 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light southerly winds will persist along the coast south of point reyes through midday today then gradually veer to the northwest in the late afternoon. Strong gale force winds across the northern outer waters are forecast to spread farther south late this afternoon prompting gale warnings over the outer waters to expand in coverage. Stronger winds are forecast across all coastal waters this evening into Friday. These winds will result in steep fresh swell creating hazardous seas conditions, especially for smaller vessels.


7 Day Forecast for Marine Location Near Rollingwood, CA
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location: 37.96, -122.33     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 201218
afdmtr
area forecast discussion
national weather service san francisco bay area
518 am pdt Thu jun 20 2019

Synopsis Slightly cooler temperatures are expected once again
on Thursday. Winds shift to the north Friday and Saturday
mornings which will allow for slightly warmer temperatures leading
into the weekend. These northerly winds have the potential to be
gusty particularly in the north bay hills.

Discussion As of 3:00 am pdt Thursday... Upper level ridge off
the california coast is retrograding a little as an upper low
from western canada moves into the northern great basin. The
marine layer is deepening again this morning but is becoming less
defined as the airmass aloft is cooling. So even though stratus
extends quite far inland this morning it should be mostly gone by
late morning. Coastal areas will be the last to clear. With the
cooler air aloft MAX temperatures will be a few degrees cooler
than yesterday.

Drier northerly winds will increase Thursday night as a trough
associated with the upper low drops south along the western
states. Latest WRF still forecasts 925 mb winds as high 15-25 kt
in the north and east bay hills Friday 12z with maximum winds to
35 kt in napa county. There should be less coverage of stratus
starting Thursday night and lasting for a few nights. Currently
there are no wind or fire weather advisories in our cwa.

Winds decrease during the day Friday but pick up again out of the
north to northeast Friday night and Saturday morning although not
quite as strong. Adiabatic warming will bring slightly warmer
temperatures on Friday including the coastal areas. Additional
warming is expected Saturday into Sunday as the upper low moves
into the midwest and an upper ridge builds to our north.

Long range models indicate a transitory pattern with the ridge
being replaced by an upper trough off the pacific northwest early
through middle of next week. This will bring cooling back to the
area with temperatures near or slightly below normal.

Aviation As of 4:52 am pdt Thursday... For 12z tafs. A robust
2500 ft marine layer has once again brought widespread low clouds
to the region. The tricky spot this morning is ksfo with
downsloping southerly winds keep the terminal clear this morning.

With that being said a tempo group persist as we anticipate
sunrise to bring CIGS to the terminals. Clearing is anticipated
between 16z-18z over bay area terminals while monterey bay
terminals hold out a bit long with clearing anticipated around
19z-20z this afternoon. Light winds will continue through the
morning with winds strengthening in the afternoon with the onset
of the seabreeze.

Vicinity of ksfo...VFR with tempo MVFR CIGS possible over ksfo
this morning. Clearing is forecast around 17z-18z this morning.

Light to locally moderate winds will continue through the morning
with winds strengthening to around 15 to 20 kt with gusts to 25 kt in
the afternoon.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Ifr CIGS will prevail this morning with
clearing not expected until 19z-20z this afternoon. It is
possible that MVFR ifr CIGS continue at kmry all day, but
confidence is low. Light winds will continue through the morning
with winds strengthening in the afternoon with the onset of the
seabreeze.

Marine As of 2:33 am pdt Thursday... Light southerly winds will
persist along the coast south of point reyes through midday today
then gradually veer to the northwest in the late afternoon.

Strong gale force winds across the northern outer waters are
forecast to spread farther south late this afternoon prompting
gale warnings over the outer waters to expand in coverage.

Stronger winds are forecast across all coastal waters this evening
into Friday. These winds will result in steep fresh swell
creating hazardous seas conditions, especially for smaller
vessels.

Mtr watches warnings advisories
Tday Glw... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm from 9 am
sca... Pt arena to pt reyes 0-10 nm
sca... Sf bay from 12 pm
public forecast: W pi
aviation: cw
marine: cw
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPXC1 - 9414847 - Richmond (Point Potrero), CA 4 mi66 min SW 14 G 18 58°F 1012.4 hPa
RCMC1 - 9414863 - Richmond, CA 5 mi66 min SW 8 G 19 58°F 62°F1012.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 7 mi66 min W 13 G 21 58°F 1011.7 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 8 mi61 min SSW 8 56°F 1012 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 10 mi66 min W 7 G 8.9 57°F 1012.2 hPa
OBXC1 11 mi66 min 57°F 57°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 11 mi66 min W 11 G 13
PXSC1 11 mi66 min 57°F 57°F
UPBC1 12 mi66 min W 14 G 19
PXOC1 - 9414311 - San Francisco (Pier 1), CA 12 mi66 min W 5.1 G 9.9 56°F 1011.2 hPa
LNDC1 12 mi66 min W 7 G 8.9 58°F 1012.2 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 12 mi66 min W 12 G 18 58°F 68°F1011.8 hPa58°F
AAMC1 - 9414750 - Alameda, CA 13 mi66 min W 5.1 G 7 58°F 66°F1012.6 hPa
FTPC1 - 9414290 - San Francisco, CA 13 mi66 min WSW 5.1 G 12 55°F 58°F1012.7 hPa
PCOC1 - 9415144 - Port Chicago, CA 17 mi66 min WSW 20 G 23 58°F 68°F1011.3 hPa
46237 - San Francisco Bar, CA (142) 20 mi60 min 57°F5 ft
SFXC1 - San Francisco Bay Reserve, CA 23 mi75 min W 15 58°F 1011 hPa53°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 24 mi66 min WNW 16 G 23 60°F 1009.9 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 31 mi50 min S 12 G 14 55°F 57°F1013 hPa
RTYC1 - 9414523 - Redwood City, CA 32 mi66 min NNW 1.9 G 2.9 60°F 74°F1012.5 hPa
PRYC1 - 9415020 - Point Reyes, CA 34 mi66 min 58°F1012 hPa

Wind History for Point Potrero Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA15 mi67 minW 910.00 miOvercast60°F52°F75%1010.1 hPa
Napa, Napa County Airport, CA17 mi66 minW 1010.00 miOvercast57°F53°F87%1010.9 hPa
Novato / Gnoss Field, CA17 mi65 minN 010.00 miOvercast57°F53°F88%1012.2 hPa
Oakland, Metro Oakland International Airport, CA19 mi67 minSW 810.00 miOvercast62°F54°F75%1012 hPa
Hayward, Hayward Air Terminal, CA24 mi66 minS 510.00 miOvercast62°F55°F78%1012.8 hPa
San Francisco, San Francisco International Airport, CA24 mi64 minS 810.00 miA Few Clouds59°F52°F78%1011.9 hPa

Wind History from CCR (wind in knots)
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Last 24hrW7W7W10W12W11W9W9W11W9W12W7W12W12W11S5W7Calm--SW5SW8W8W8
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1 day agoNW4N3N7NW10NW8NW11NW12NW14NW11NW12NW12NW10W13W76CalmNW7NW9W7NW4W5W8W8W6
2 days agoS8SW8SW8NW8NW7N9N13NW11W11NW11W12W9W8NW7NW54N3----W5NW4SW3CalmCalm

Tide / Current Tables for Richmond, Chevron Oil Pier, California (2)
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Richmond
Click for Map
Thu -- 01:54 AM PDT     5.76 feet High Tide
Thu -- 05:47 AM PDT     Sunrise
Thu -- 08:47 AM PDT     Moonset
Thu -- 08:56 AM PDT     -0.72 feet Low Tide
Thu -- 04:22 PM PDT     4.70 feet High Tide
Thu -- 08:35 PM PDT     Sunset
Thu -- 09:04 PM PDT     2.99 feet Low Tide
Thu -- 11:24 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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55.55.85.44.63.21.70.4-0.5-0.7-0.40.31.32.43.54.34.74.64.23.63.233.13.6

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
Thu -- 03:14 AM PDT     -0.00 knots Slack
Thu -- 05:46 AM PDT     Sunrise
Thu -- 06:48 AM PDT     -1.21 knots Max Ebb
Thu -- 08:47 AM PDT     Moonset
Thu -- 11:00 AM PDT     0.00 knots Slack
Thu -- 01:58 PM PDT     0.81 knots Max Flood
Thu -- 06:01 PM PDT     -0.00 knots Slack
Thu -- 08:02 PM PDT     -0.43 knots Max Ebb
Thu -- 08:35 PM PDT     Sunset
Thu -- 10:14 PM PDT     0.00 knots Slack
Thu -- 11:24 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.70.40.1-0.4-0.9-1.1-1.2-1.1-0.9-0.5-00.50.70.80.80.60.30-0.3-0.4-0.3-0.10.4

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 (8,2,3,4)
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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.