Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Broadmoor, 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 6:47AMSunset 5:01PM Tuesday November 13, 2018 6:11 PM PST (02:11 UTC) Moonrise 12:02PMMoonset 10:12PM Illumination 35% Phase: Waxing Crescent; Moon at 6 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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PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 211 Pm Pst Tue Nov 13 2018
Tonight..N winds up to 10 kt. Wind waves 2 ft or less. W swell 1 to 2 ft at 11 seconds and S around 2 ft at 15 seconds. Areas of smoke this evening, then patchy smoke after midnight.
Wed..N winds 5 to 15 kt. Wind waves 2 ft or less. W swell 2 to 3 ft at 11 seconds and S up to 4 ft at 15 seconds. Patchy smoke.
Wed night..NW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 2 to 6 ft at 15 seconds and S up to 3 ft at 15 seconds.
Thu..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 4 to 9 ft at 15 seconds and S up to 2 ft at 14 seconds.
Thu night..NW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 5 to 8 ft at 15 seconds and S around 2 ft at 14 seconds.
Fri..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 4 to 7 ft and S around 2 ft.
Fri night..NW winds up to 10 kt. Wind waves 2 ft or less. W swell 3 to 6 ft and S around 2 ft.
Sat..SW winds around 5 kt. Wind waves 2 ft or less. W swell 2 to 6 ft and S around 2 ft.
Sun..W winds around 5 kt. Wind waves 2 ft or less. W swell 4 to 6 ft and S around 2 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...combined seas 2 to 3 ft with a dominant period of 10 seconds. Across the bar...combined seas 3 to 5 ft with a dominant period of 10 seconds. Maximum ebb current of 2.1 knots at 07:31 pm Tuesday and 1 knots at 09:55 am Wednesday.
PZZ500 211 Pm Pst Tue Nov 13 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light southerly winds will continue tonight as an upper low pass by well to the north of the region. Winds will transition back out of the northwest tomorrow as high pressure builds back over the eastern pacific. Light mixed swell will continue through mid-week before a northwest swell arrives.


7 Day Forecast for Marine Location Near Broadmoor CDP, CA
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location: 37.74, -122.59     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 140052
afdmtr
area forecast discussion
national weather service san francisco bay area
452 pm pst Tue nov 13 2018

Synopsis Smoke over the region will continue to result in poor
air quality through at least midweek 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 02:00 pm pst Tuesday... Synoptic pattern
features an amplified upper level ridge overhead with a closed
low over the southern plains and a broad trough in the eastern
pacific. A weak shortwave trough on the eastern side of this broad
trough is advecting high clouds overhead. These clouds have kept
temperatures cooler this afternoon areawide. Highs so far have
only been in the low to mid 60s in the bay area and points
northward, while santa cruz southward has seen temperatures in the
mid 60s to lower 70s. The difference in temperature between the
northern and southern half of the CWA is caused primarily by
smoke coverage. The bay area is still socked in by smoke and poor
air quality, with visibilities around 2 1 2 miles this afternoon
is several locations such as santa rosa, sfo, and oakland.

Meanwhile, the southern half of the CWA has been spared the worst
of the air quality issues. Expect smoke to persist across the bay
area through this week as winds remain weak, limiting mixing.

Surface winds will turn onshore Wednesday afternoon along the
coast, but this may not offer much relief as a large area of smoke
extends several hundred miles off the coast.

An upper level ridge and a weak surface pressure gradient will
keep winds light through the rest of the week. Winds will be
generally 10 mph or less with gusts below 15 mph. Relative
humidity remains low in the higher terrain, with relative humidity
mainly in the 10-30 percent range above 1000 feet. Poor overnight
humidity recoveries are expected through the rest of the week.

Due to the dry air and very dry fuels, near critical fire weather
conditions will continue. An increasing onshore component in the
surface flow will allow humidity to gradually increase along the
coast. Highs this week will be seasonably warm with 60s near the
coast and low to mid 70s inland. A limiting factor, but less
certain, will be aerial smoke coverage, with more smoke reducing
daytime heating potential. Lows will not be quite as cold as
recent nights with the increase in moisture in the valleys.

Looking ahead to next week, the advertised pattern change remains
likely but details are still far from certain. Models are at least
in agreement that a low will move to our south on Monday and
Tuesday. This does not look to bring any precipitation, but it
opens the door for a broad trough to potentially drop far enough
south to bring rain to our area as it moves eastward from the
pacific. Models are not consistent run to run on the timing or
strength of the trough and precipitation, but both the GFS and
euro show precip sometime in the Wednesday to Friday timeframe
next week. As always with forecasts this far in advance, details
are likely to change. Bottom line is that a pattern change is
likely next week, and the potential for precipitation around
thanksgiving is increasing.

Aviation As of 4:52 pm pst Tuesday... Ongoing wildfire smoke is
obscuring horizontal and slant range visibilities to MVFR-ifr in
a stagnant weather pattern. Mid and high clouds are streaming in
from the west with a weakly amplified, but dry 500 mb trough, and
weakly divergent jet stream winds becoming replaced by 500 mb
ridging Wednesday that slowly weakens through late week.

Vicinity of ksfo... MVFR in smoke. Poor to very poor slant range
visibility. Light winds.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR-MVFR. Varying amounts of smoke.

Poor slant range visibility.

Marine As of 03:44 pm pst Tuesday... Generally light southerly
winds will continue tonight as an upper low pass by well to the
north of the region. Winds will transition back out of the
northwest tomorrow as high pressure builds back over the eastern
pacific. Light mixed swell will continue through mid-week before a
northwest swell arrives.

Mtr watches warnings advisories
Tngt None.

Public forecast: st
aviation: canepa
marine: as
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46237 - San Francisco Bar, CA (142) 4 mi72 min 56°F3 ft
FTPC1 - 9414290 - San Francisco, CA 8 mi42 min N 8.9 G 9.9 60°F 56°F1028.1 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 11 mi42 min WNW 1.9 G 2.9 60°F 1027.1 hPa
PXSC1 11 mi42 min 61°F 37°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 13 mi32 min E 5.8 G 5.8 56°F 54°F1028 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 14 mi42 min WNW 4.1 G 4.1
OBXC1 14 mi42 min 59°F 44°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 14 mi42 min WNW 4.1 G 5.1 58°F 1028 hPa
RCMC1 - 9414863 - Richmond, CA 16 mi42 min NE 2.9 G 5.1 62°F 58°F1027.7 hPa
AAMC1 - 9414750 - Alameda, CA 16 mi42 min Calm G 2.9 59°F 59°F1028.2 hPa
LNDC1 17 mi42 min Calm G 1 60°F 1027.9 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 17 mi42 min NE 4.1 G 5.1 63°F 1028.2 hPa
RTYC1 - 9414523 - Redwood City, CA 26 mi42 min Calm G 1 58°F 60°F1028.5 hPa
PRYC1 - 9415020 - Point Reyes, CA 27 mi42 min Calm G 1 55°F1027.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 28 mi42 min E 9.9 G 11 60°F 1027.8 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 32 mi42 min ENE 1.9 G 1.9 58°F 59°F1028.5 hPa47°F
PCOC1 - 9415144 - Port Chicago, CA 36 mi42 min E 4.1 G 5.1 57°F 59°F1028.5 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 43 mi42 min S 1.9 G 2.9 59°F 1028.4 hPa
SFXC1 - San Francisco Bay Reserve, CA 44 mi87 min Calm 55°F 1028 hPa37°F
46214 - Point Reyes, CA (029) 49 mi42 min 58°F3 ft

Wind History for San Francisco, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA15 mi16 minN 04.00 miPartly Cloudy with Haze58°F44°F60%1028 hPa
Half Moon Bay Airport, CA17 mi17 minN 07.00 miMostly Cloudy50°F41°F71%1027.8 hPa
Oakland, Metro Oakland International Airport, CA20 mi19 minSSW 34.00 miOvercast with Haze56°F43°F62%1028.4 hPa
San Carlos Airport, CA23 mi25 minN 03.00 miSmoke Haze57°F44°F63%1028.4 hPa

Wind History from SFO (wind in knots)
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Last 24hrS3S3CalmCalmCalmCalmCalmCalmSW3CalmSW3CalmSW3CalmCalmS3CalmCalmCalmCalmN3NE3CalmCalm
1 day agoCalmNE7CalmS3SW3S3CalmS3CalmS4CalmSW4CalmSE3SE6S6E3E4CalmCalmNE3CalmCalmE3
2 days agoCalmSE4CalmSW3N5CalmN4CalmSW4CalmCalm4CalmSE7E8E10E7E5E7NE15NE13NE11E6E4

Tide / Current Tables for San Francisco Bar, California
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San Francisco Bar
Click for Map
Tue -- 03:59 AM PST     4.35 feet High Tide
Tue -- 06:48 AM PST     Sunrise
Tue -- 08:53 AM PST     3.33 feet Low Tide
Tue -- 12:02 PM PST     Moonrise
Tue -- 02:05 PM PST     4.65 feet High Tide
Tue -- 05:00 PM PST     Sunset
Tue -- 09:08 PM PST     0.35 feet Low Tide
Tue -- 10:13 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.233.74.24.34.243.63.43.33.53.84.14.54.74.543.12.21.30.60.40.51

Tide / Current Tables for South Channel, San Francisco Bay Approach, California Current
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South Channel
Click for Map
Tue -- 12:59 AM PST     1.16 knots Max Flood
Tue -- 04:53 AM PST     -0.01 knots Slack
Tue -- 06:48 AM PST     Sunrise
Tue -- 06:50 AM PST     -0.67 knots Max Ebb
Tue -- 10:11 AM PST     0.00 knots Slack
Tue -- 12:01 PM PST     Moonrise
Tue -- 12:39 PM PST     0.58 knots Max Flood
Tue -- 03:39 PM PST     -0.00 knots Slack
Tue -- 05:00 PM PST     Sunset
Tue -- 06:55 PM PST     -1.39 knots Max Ebb
Tue -- 10:12 PM PST     Moonset
Tue -- 10:44 PM PST     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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11.21.10.90.5-0.1-0.5-0.7-0.5-0.3-0.10.30.50.60.40.2-0.2-0.7-1.2-1.4-1.2-0.8-0.40.1

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 (21,6,7,8)
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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.