Friday, March22, 2019 L-36.com


Marine Weather and Tides
Millbrae, 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 7:08AMSunset 7:24PM Friday March 22, 2019 5:43 AM PDT (12:43 UTC) Moonrise 8:35PMMoonset 7:31AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 254 Am Pdt Fri Mar 22 2019
.small craft advisory in effect through Saturday morning...
.small craft advisory for rough bar in effect from this afternoon through Saturday morning...
Today..SE winds 10 to 20 kt...becoming S 15 to 25 kt this afternoon. Wind waves 3 to 5 ft. W swell 4 to 7 ft at 17 seconds and W 2 to 3 ft at 10 seconds. Rain.
Tonight..W winds 10 to 20 kt with gusts up to 25 kt. Wind waves 2 ft or less. W swell 7 to 10 ft at 17 seconds and S 1 to 2 ft at 14 seconds. Rain likely.
Sat..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 9 to 12 ft at 16 seconds and S 1 to 2 ft at 13 seconds.
Sat night..NW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 9 to 12 ft at 16 seconds and S 1 to 2 ft at 13 seconds.
Sun..SE winds 5 to 15 kt. Wind waves 2 ft or less. W swell 7 to 10 ft at 15 seconds and S 1 to 2 ft at 18 seconds.
Sun night..S winds 25 to 35 kt with gusts up to 45 kt. Wind waves 5 to 7 ft. W swell 5 to 8 ft at 14 seconds and S 1 to 2 ft at 18 seconds. Rain likely.
Mon..S winds 5 to 15 kt. Wind waves 2 ft or less. W swell 6 to 8 ft and sw 1 to 2 ft. Rain likely.
Tue..S winds 5 to 15 kt. Wind waves 2 ft or less. W swell 6 to 9 ft and sw 1 to 2 ft. Showers likely.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...combined seas 6 to 9 ft with a dominant of 17 seconds. Across the bar...combined seas 7 to 11 ft with a dominant period of 17 seconds. Maximum ebb current of 3.6 kt at 06:07 am Friday and 2.8 kt at 06:43 pm Friday.
PZZ500 254 Am Pdt Fri Mar 22 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Southerly winds will increase over the waters through the day as a frontal system moves across the coastal waters. Winds will become northwesterly overnight and into Saturday behind the frontal passage. A moderate long-period swell will arrive over the next 24 hours and continue through Saturday, bringing hazardous seas to mariners in smaller vessels.


7 Day Forecast for Marine Location Near Millbrae, CA
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location: 37.58, -122.39     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 221144
afdmtr
area forecast discussion
national weather service san francisco bay area
444 am pdt Fri mar 22 2019

Synopsis A frontal boundary will move from northwest to
southeast across the region today resulting in widespread rainfall
through tonight. Mainly dry conditions develop over the weekend
with unsettled weather likely to return during at least the first
half of next week.

Discussion As of 03:11 am pdt Friday... A modest plume of
atmospheric moisture is forecast to advect inland across the
region today ahead of an approaching frontal boundary. Light rain
will develop first over coastal areas from the santa cruz
mountains northward into the north bay through the morning. As the
front pushes inland from the northwest, rain will become more
widespread over the san francisco bay area this afternoon before
shifting southward into the central coast during the evening
hours. Rainfall will generally be light to occasionally moderate
with breezy southerly winds ahead of and along the frontal
boundary. In wake of the front's passage, northerly winds will
develop and precipitation will diminish from north to south
through the night. A few lingering showers may persist into early
Saturday morning, yet much of the region will dry out shortly
after sunrise. Rainfall amounts are forecast to range from 0.25"
to 0.75" for most urban areas while the coastal ranges and north
bay mountains hills could see upwards of 1.50".

Seasonably cool temperatures are expected on Saturday with
daytime temperatures in the upper 60s to lower 60s as brisk
northwest winds prevail. Winds relax some on Sunday and turn
southerly head of the next weather system to approach the region.

This will lead to slightly warmer temperatures during the day
Sunday.

After the brief dry period this weekend, unsettled weather
conditions return late Sunday with periods of rain expected
through at least the first half next week. The models generally
agree with the first system pushing across the region Sunday night
into Monday followed by a 12 to 24 hour break in between weather
systems. Additional widespread rainfall is expected from late
Tuesday into Wednesday with the potential for subsequent systems
to move across the region through late week. The details regarding
timing and location of greatest rainfall remain difficult to pin
down at this time given differences model output. Regardless, the
ensembles point toward an unsettled pattern with periods of
rainfall through much of next week.

Aviation As of 4:44 am pdt Friday... For 12z tafs. With the
exception of sts,VFR conditions were observed at the TAF sites as
of the 12z TAF publication time. As the morning progresses,
ceilings are forecast to drop to MVFR levels as rain shower
chances increase with the next approaching system. In addition to
the lowering ceilings and rain, southerly winds are forecast for
much of the day throughout the bay area. Rain will become more
widespread in the afternoon evening hours the front approaches.

Vicinity of ksfo...VFR conditions were observed as of the 12z taf
issuance, but expect lowering ceilings to MVFR levels over the
next several hours as the next system approaches, initially
accompanied with light rain showers. There will likely be a short
break in the rain late in the morning, but rain will return in the
afternoon. Southeasterly winds are forecast to prevail through the
day, becoming gusty at times this afternoon. Winds will eventually
become west to northwest overnight.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR MVFR conditions are expected as an
approaching system brings increasing clouds to both mry and sns
with southerly winds through the day.

Marine As of 03:11 am pdt Friday... Southerly winds will
increase over the waters through the day as a frontal system
moves across the coastal waters. Winds will become northwesterly
overnight and into Saturday behind the frontal passage. A
moderate long-period swell will arrive over the next 24 hours and
continue through Saturday, bringing hazardous seas to mariners in
smaller vessels.

Mtr watches warnings advisories
Tday Sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
sca... Rough bar advisory for sf bar from 3 pm
public forecast: rgass
aviation: rowe
marine: rowe
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 11 mi43 min SE 2.9 G 6 51°F 61°F1021.2 hPa (-0.7)
AAMC1 - 9414750 - Alameda, CA 14 mi43 min ESE 7 G 8.9 51°F 58°F1021 hPa (-0.8)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 15 mi43 min SE 7 G 9.9 54°F 1019.6 hPa (-0.8)
PXSC1 15 mi43 min 55°F 48°F
FTPC1 - 9414290 - San Francisco, CA 16 mi43 min S 2.9 G 5.1 52°F 55°F1020.9 hPa (-0.7)
LNDC1 16 mi43 min ESE 7 G 8 52°F 1020.6 hPa (-0.8)
OBXC1 16 mi43 min 53°F 49°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 16 mi43 min SE 5.1 G 7 52°F 1020.7 hPa (-0.8)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 16 mi43 min ESE 7 G 8.9
46237 - San Francisco Bar, CA (142) 19 mi73 min 55°F7 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 22 mi56 min SSW 2.9 52°F 1021 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 23 mi43 min SE 7 G 11 55°F 1020.9 hPa (-0.7)
RCMC1 - 9414863 - Richmond, CA 24 mi43 min S 7 G 9.9 54°F 56°F1020.3 hPa (-0.9)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 27 mi43 min SSW 12 G 16 53°F 56°F1021.1 hPa (-0.8)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 34 mi43 min NE 5.1 G 6 51°F 1020.3 hPa (-0.8)
MZXC1 - 9415102 - Martinez-Amorco CA 34 mi43 min Calm G 1 51°F 57°F1020.6 hPa (-0.6)51°F
UPBC1 35 mi43 min Calm G 1.9
PCOC1 - 9415144 - Port Chicago, CA 38 mi43 min Calm G 4.1 49°F 56°F1020.6 hPa (-0.6)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 41 mi43 min WSW 2.9 G 5.1 53°F 1020.5 hPa (-0.4)
PRYC1 - 9415020 - Point Reyes, CA 42 mi43 min 56°F1019.9 hPa (-1.0)
SFXC1 - San Francisco Bay Reserve, CA 47 mi118 min W 5.1 48°F 1021 hPa45°F

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA3 mi47 minSSE 410.00 miMostly Cloudy50°F44°F80%1020.4 hPa
San Carlos Airport, CA8 mi48 minN 010.00 miOvercast48°F42°F82%1020.7 hPa
Half Moon Bay Airport, CA8 mi48 minSE 58.00 miOvercast50°F48°F94%1021 hPa
Oakland, Metro Oakland International Airport, CA12 mi50 minSE 610.00 miOvercast51°F46°F83%1020.8 hPa
Hayward, Hayward Air Terminal, CA15 mi49 minSE 710.00 miOvercast57°F44°F62%1021.5 hPa
Mountain View, Moffett Field, CA21 mi47 minSE 710.00 miMostly Cloudy49°F44°F83%1021.3 hPa

Wind History from SFO (wind in knots)
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Last 24hrSW5W4S3N6N5NE4E7NE5W9W13W15W17W12W10W10W9SW5S4SE3S4SW5CalmSE5SE4
1 day agoSE9SE9S6SW8SW12SW14SW11SW11SW9SW11W11W10W7W9SW6SW4SW4SW3SE3S6CalmW4SW4Calm
2 days agoSW3S3S3CalmNE3NE3NE4N3N6W93CalmS18
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Tide / Current Tables for Coyote Point Marina, San Francisco Bay, California
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Coyote Point Marina
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Fri -- 02:04 AM PDT     7.76 feet High Tide
Fri -- 07:09 AM PDT     Sunrise
Fri -- 08:15 AM PDT     0.07 feet Low Tide
Fri -- 08:29 AM PDT     Moonset
Fri -- 02:23 PM PDT     7.33 feet High Tide
Fri -- 07:22 PM PDT     Sunset
Fri -- 08:28 PM PDT     0.30 feet Low Tide
Fri -- 09:35 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.87.27.87.364.22.30.80.10.31.53.256.57.37.26.14.52.81.30.40.41.43

Tide / Current Tables for Oyster Point 2.8 mi E, South San Francisco Bay, California Current
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Oyster Point 2.8 mi E
Click for Map
Fri -- 02:20 AM PDT     -0.00 knots Slack
Fri -- 05:38 AM PDT     -1.87 knots Max Ebb
Fri -- 07:09 AM PDT     Sunrise
Fri -- 08:29 AM PDT     Moonset
Fri -- 08:35 AM PDT     0.01 knots Slack
Fri -- 11:37 AM PDT     1.26 knots Max Flood
Fri -- 02:49 PM PDT     -0.01 knots Slack
Fri -- 06:01 PM PDT     -1.72 knots Max Ebb
Fri -- 07:22 PM PDT     Sunset
Fri -- 08:56 PM PDT     0.00 knots Slack
Fri -- 09:35 PM PDT     Moonrise
Fri -- 11:54 PM PDT     1.14 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.20.80.2-0.6-1.3-1.8-1.8-1.3-0.60.30.81.21.210.5-0.1-0.9-1.5-1.7-1.4-0.800.61

Weather Map and Satellite Images
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wmap_P
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 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.