Wednesday, November14, 2018 L-36.com


Marine Weather and Tides
Brisbane, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:48AMSunset 5:00PM Wednesday November 14, 2018 8:12 AM PST (16:12 UTC) Moonrise 12:40PMMoonset 11:07PM Illumination 41% Phase: Waxing Crescent; Moon at 7 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 249 Am Pst Wed Nov 14 2018
Today..NW winds up to 10 kt. Hazy and patchy smoke.
Tonight..SW winds up to 10 kt. Hazy and patchy smoke.
Thu..NW winds around 5 kt. Hazy and patchy smoke.
Thu night..NW winds 5 to 10 kt.
Fri..NW winds up to 10 kt.
Fri night..W winds 5 to 10 kt.
Sat..W winds around 5 kt.
Sun..W winds around 5 kt.
PZZ500 249 Am Pst Wed Nov 14 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light northerly winds are forecast to prevail over the coastal waters today as high pressure remains over the eastern pacific. Light mixed swell will continue today before a northwest swell arrives on Thursday. A change in the pattern has the potential to bring cooler temperatures and the possibly of light rain to the waters by the middle of next week.


7 Day Forecast for Marine Location Near Brisbane, CA
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location: 37.67, -122.38     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 141142
afdmtr
area forecast discussion
national weather service san francisco bay area
342 am pst Wed nov 14 2018

Synopsis Smoke over the region will continue to result in poor
air quality through the work week with dry conditions and light
offshore winds. Seasonably mild, dry conditions will then persist
through the upcoming weekend. A pattern change will potentially
bring rainfall to the region around thanksgiving.

Discussion As of 03:41 am pst Wednesday... Not expecting much
change in the overall forecast through late in the week as the
synoptic pattern continues to feature an amplified upper level
ridge overhead and a weak trough pushing inland across british
columbia. This trough well to our north will advect another round
of high level clouds across the region during the next 24 to 36
hours which will help hold temperatures down slightly. Near
surface smoke from the camp fire will also continue to impact the
region and produce poor air quality, especially the san francisco
bay area through late week. This is as weak offshore flow
continues region-wide which is also maintaining critically dry
weather conditions. Thus, near-critical fire weather conditions
will persist at least for another day or two.

The ridge aloft is forecast to weaken slightly this weekend as a
closed upper level low develops over the eastern pacific and
approaches southern california. This should allow for slightly
cooler daytime temperatures with light onshore flow developing at
times. This pattern will also bring a slight increase in low level
moisture lessening fire weather concerns and potentially
resulting in improved air quality.

The main focus then turns toward a likely pattern change during
the second half of next week which could potentially bring
precipitation to the region. Medium range models generally agree
that a long-wave trough will develop over the eastern pacific and
approach the west coast during the middle of next week. However,
confidence in the details remains low at this time on the track
and strength of embedded short-wave disturbances as they approach
the coast. The ECMWF has backed on precipitation for our region
during the latter half of the week while the GFS and canadian
models have trended wetter from Wednesday into thanksgiving day.

Regardless, look for cooler conditions, increase in surface
moisture and potential for unsettled conditions late in the
forecast period.

Aviation As of 3:36 am pst Wednesday... For 12z tafs. Aviation
impacts over the next 24 to 30 hours will continue to be limited
visibilities -- both surface and slant range -- as a result of the
smoke from the camp fire in butte county. Latest experimental,
high-resolution smoke models keep smoke over much of the region
again today. Surface visibilities are generally expected to remain
in the 4 to 6 mile range; however, can't rule out periods with
visibilities dropping to ifr levels. Only moisture clouds to speak
of today will be periodic passing high clouds.

Vicinity of ksfo... Generally expect MVFR conditions to prevail
today as a consequence of the smoke-related visibility
limitations. Light variable winds this morning are expected to
become west to northwest in the afternoon hours around 10 kt.

Sfo bridge approach... Slant range visibilities are expected to be
impacted along the approach due to smoke. Otherwise, similar to
ksfo.

Monterey bay terminals...VFR MVFR visibilities expected today as
smoke impacts both sns and mry. Easterly winds in the morning will
become onshore in the afternoon.

Marine As of 03:41 am pst Wednesday... Generally light
northerly winds are forecast to prevail over the coastal waters
today as high pressure remains over the eastern pacific. Light
mixed swell will continue today before a northwest swell arrives
on Thursday. A change in the pattern has the potential to bring
cooler temperatures and the possibly of light rain to the waters
by the middle of next week.

Mtr watches warnings advisories
Tday None.

Public forecast: rgass
aviation: rowe
marine: rowe
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 25 mi33 min NE 9.7 G 14 56°F 55°F1028.2 hPa

Wind History for Alameda, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA4 mi17 minE 34.00 miPartly Cloudy with Haze51°F44°F77%1028.1 hPa
Oakland, Metro Oakland International Airport, CA9 mi20 minNNE 33.00 miA Few Clouds with Haze45°F33°F63%1028.7 hPa
San Carlos Airport, CA12 mi73 minN 03.00 miFair with Haze43°F33°F71%1028.1 hPa
Half Moon Bay Airport, CA13 mi18 minNNW 45.00 miFair with Haze54°F37°F54%1027.4 hPa
Hayward, Hayward Air Terminal, CA14 mi19 minN 04.00 miHaze Smoke47°F28°F48%1029.3 hPa
Palo Alto Airport, CA19 mi26 minN 05.00 miSmoke Haze43°F33°F71%1028.4 hPa
Mountain View, Moffett Field, CA24 mi17 minN 05.00 miFair with Haze44°F33°F65%1028.7 hPa

Wind History from SFO (wind in knots)
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Last 24hrCalmS3CalmCalmCalmCalmN3NE3CalmCalmCalmS3S3CalmCalmSE5CalmCalmSW6W4CalmCalmS3S3
1 day agoSE6S6E3E4CalmCalmNE3CalmCalmE3S3S3CalmCalmCalmCalmCalmCalmSW3CalmSW3CalmSW3Calm
2 days agoE8E10E7E5E7NE15NE13NE11E6E4CalmNE7CalmS3SW3S3CalmS3CalmS4CalmSW4CalmSE3

Tide / Current Tables for Oyster Point Marina, San Francisco Bay, California (3)
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Oyster Point Marina
Click for Map
Wed -- 06:13 AM PST     5.67 feet High Tide
Wed -- 06:48 AM PST     Sunrise
Wed -- 11:43 AM PST     3.24 feet Low Tide
Wed -- 12:40 PM PST     Moonrise
Wed -- 04:22 PM PST     5.60 feet High Tide
Wed -- 04:58 PM PST     Sunset
Wed -- 11:07 PM PST     Moonset
Wed -- 11:36 PM PST     0.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.62.63.74.75.45.75.554.43.73.33.33.64.35.15.55.554.23.121.20.7

Tide / Current Tables for Sierra Point 1.3 mi ENE, South San Francisco Bay, California Current
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Sierra Point 1.3 mi ENE
Click for Map
Wed -- 02:30 AM PST     0.82 knots Max Flood
Wed -- 06:02 AM PST     -0.01 knots Slack
Wed -- 06:48 AM PST     Sunrise
Wed -- 08:24 AM PST     -0.50 knots Max Ebb
Wed -- 11:45 AM PST     0.00 knots Slack
Wed -- 12:40 PM PST     Moonrise
Wed -- 02:15 PM PST     0.40 knots Max Flood
Wed -- 04:58 PM PST     -0.00 knots Slack
Wed -- 04:58 PM PST     Sunset
Wed -- 08:28 PM PST     -0.96 knots Max Ebb
Wed -- 11:07 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.60.80.80.70.40-0.3-0.5-0.5-0.3-0.20.10.30.40.40.2-0-0.3-0.7-0.9-0.9-0.7-0.4

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 (11,2,3,4)
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Ground Weather Radar Station San Francisco Bay Area, 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.