Monday, October14, 2019 L-36.com


Marine Weather and Tides
Redwood City, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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 7:14AMSunset 6:34PM Monday October 14, 2019 3:18 AM PDT (10:18 UTC) Moonrise 6:26PMMoonset 6:53AM 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- 235 Am Pdt Mon Oct 14 2019
Today..SW winds 5 to 15 kt.
Tonight..SW winds 5 to 10 kt.
Tue..SW winds up to 10 kt.
Tue night..SW winds up to 10 kt.
Wed..SW winds 5 to 15 kt.
Wed night..W winds up to 10 kt.
Thu..NW winds 10 to 20 kt with gusts up to 25 kt.
Fri..W winds 10 to 20 kt with gusts up to 25 kt.
PZZ500 235 Am Pdt Mon Oct 14 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light northwest winds will prevail over the coastal waters through columbus day. Mixed seas will continue over the next few days with a light shorter period northwest swell and a light southerly swell. A larger northwest swell is forecast to arrive later this week with forerunners expected in the next couple days.


7 Day Forecast for Marine Location Near Redwood City, CA
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location: 37.52, -122.2     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 140535
afdmtr
area forecast discussion
national weather service san francisco bay area
1035 pm pdt Sun oct 13 2019

Synopsis Little change is expected through Monday. Slight
warming is forecast for Tuesday prior to the arrival of a weak
system that may produce light rain in the north bay late Wednesday
and Wednesday night. Breezy conditions are expected after frontal
passage from late Wednesday through Thursday. Slightly warmer and
drier conditions are forecast from Friday on into next weekend,
along with moderate breezes at times.

Discussion As of 8:35 pm pdt Sunday... Evening water vapor
satellite imagery shows a weak upper trough currently aligned
along the west coast. This trough brought a slightly cooler
airmass into our area today, and also enhanced onshore flow. The
result was cooler temperatures across nearly our entire region.

Downtown san francisco's high of 62 today was 15 degrees cooler
than Saturday's high.

Little change is forecast as we move into columbus day. Patchy
night and morning low clouds will primarily be limited to coastal
areas and temperatures will remain close to seasonal averages.

A shortwave ridge will briefly build over california late tomorrow
and Tuesday, resulting in a slight warm-up on Tuesday.

A pacific weather system projected to move into the pacific
northwest around midweek is forecast to produce widespread
rainfall across western washington and oregon, as well as
northwest california. The southern end of a cold frontal rain
band may clip the north bay late Wednesday and Wednesday night,
although the likelihood of measurable rain south of northern
sonoma county is very low. The midweek system will cool our
temperatures slightly on Wednesday and Thursday.

Locally gusty post-frontal northwest winds are expected from late
Wednesday through Thursday, primarily in coastal areas where
gusts to 35 mph are possible along the north bay coast on
Thursday. These winds will coincide with higher relative humidity
which will lessen fire concerns. Northwest winds will then veer a
bit more to the north by the weekend, resulting in slight warming
and drying. However, winds are not currently expected to be
strong enough to raise significant fire weather concerns through
next weekend.

Aviation As of 10:35 pm pdt Sunday... For 06z tafs. Patchy low
clouds continue to develop along the coast with some inland
intrusion visible on satellite. Gradual deepening of the marine
layer and expansion of coastal stratus will bring patchy low
clouds to coastal terminals overnight. However, it may be one of
those night where the stratus moves in and out bringing tempo cigs
to the some terminals. Light and locally variable winds will
prevail overnight.

Vicinity of ksfo...VFR conditions will prevail through the
forecast period with patchy low clouds likely peeking through
coastal gaps early Monday morning. Light and locally variable
winds will prevail overnight.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR conditions will prevail through late
tonight. Patchy low clouds may bring temporary CIGS to area
terminals between 07z and 14z early Monday morning. Light
offshore or locally variable winds expected overnight.

Marine As of 8:59 pm pdt Sunday... Light to locally moderate
northwest winds will persist across the coastal waters with
locally breezy winds over the northern outer waters. Mixed seas
will continue through early this week with a light shorter period
northwest swell and a light southerly swell. Fresh wind generate
short period waves in combination with swells will produce locally
hazardous seas over portions of the outer waters beginning this
evening. A larger northwest swell will then arrive later this week
with forerunners expected in the next couple days.

Mtr watches warnings advisories
Tngt Sca... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm from 3 am
public forecast: dykema
aviation: cw
marine: as cw
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 1 mi48 min Calm G 1.9 51°F 67°F1013.5 hPa
AAMC1 - 9414750 - Alameda, CA 18 mi48 min W 2.9 G 4.1 55°F 63°F1013.3 hPa
LNDC1 19 mi48 min ESE 2.9 G 4.1 55°F 1012.8 hPa
OBXC1 21 mi48 min 55°F 54°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 21 mi48 min SSW 1 G 1.9 54°F 1012.8 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 21 mi48 min W 2.9 G 4.1
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi48 min NW 1 G 4.1 54°F 1011.8 hPa
PXSC1 22 mi48 min 55°F 54°F
FTPC1 - 9414290 - San Francisco, CA 24 mi48 min SW 2.9 G 6 54°F 57°F1013 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 28 mi48 min S 8.9 G 11 56°F 1013 hPa
46237 - San Francisco Bar, CA (142) 29 mi78 min 55°F4 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 29 mi55 min Calm 51°F 1012 hPa
RCMC1 - 9414863 - Richmond, CA 30 mi48 min SSE 1.9 G 4.1 54°F 60°F1012.7 hPa
UPBC1 36 mi48 min WNW 7 G 8.9
MZXC1 - 9415102 - Martinez-Amorco CA 36 mi48 min W 5.1 G 7 55°F 64°F1012.5 hPa55°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 37 mi48 min WSW 2.9 G 4.1 53°F 1012.3 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 38 mi38 min W 3.9 G 5.8 55°F 55°F1012.9 hPa
PCOC1 - 9415144 - Port Chicago, CA 38 mi48 min SSW 2.9 G 5.1 50°F 65°F1012.5 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 40 mi48 min WNW 8.9 G 11 58°F 1011.4 hPa
SFXC1 - San Francisco Bay Reserve, CA 48 mi93 min Calm 50°F 1012 hPa47°F

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hayward, Hayward Air Terminal, CA11 mi24 minNE 410.00 miFair49°F39°F71%1013.8 hPa
San Francisco, San Francisco International Airport, CA11 mi22 minN 010.00 miA Few Clouds54°F44°F69%1012.8 hPa
Oakland, Metro Oakland International Airport, CA12 mi25 minENE 310.00 miPartly Cloudy48°F45°F89%1013.1 hPa
Half Moon Bay Airport, CA16 mi23 minENE 310.00 miOvercast50°F46°F88%1013.2 hPa
San Jose, San Jose International Airport, CA18 mi25 minSE 410.00 miFair48°F39°F74%1012.9 hPa
Livermore, Livermore Municipal Airport, CA24 mi25 minN 010.00 miFair47°F30°F54%1012.3 hPa

Link to 5 minute data for KSQL

Wind History from SQL (wind in knots)
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Last 24hr------------------CalmCalmW4333NW7NW7N9NW8W8NW10NW9NW7W5
1 day ago------------------CalmCalmCalmCalmCalmNE3N6N6NW5N5NW6NW6W4W6W6
2 days ago------------------CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3NW33NW5Calm

Tide / Current Tables for Redwood Creek entrance (inside), San Francisco Bay, California
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Redwood Creek entrance (inside)
Click for Map
Mon -- 01:41 AM PDT     7.15 feet High Tide
Mon -- 07:15 AM PDT     Sunrise
Mon -- 07:44 AM PDT     1.56 feet Low Tide
Mon -- 07:53 AM PDT     Moonset
Mon -- 01:35 PM PDT     7.71 feet High Tide
Mon -- 06:33 PM PDT     Sunset
Mon -- 07:25 PM PDT     Moonrise
Mon -- 08:17 PM PDT     0.68 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.96.97.16.55.43.92.61.81.62.33.65.16.67.57.775.74.12.51.30.70.91.93.3

Tide / Current Tables for Dumbarton Bridge, San Francisco Bay, California Current
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Dumbarton Bridge
Click for Map
Mon -- 03:00 AM PDT     -0.00 knots Slack
Mon -- 05:19 AM PDT     -1.03 knots Max Ebb
Mon -- 07:15 AM PDT     Sunrise
Mon -- 07:52 AM PDT     Moonset
Mon -- 08:18 AM PDT     0.00 knots Slack
Mon -- 11:25 AM PDT     1.50 knots Max Flood
Mon -- 02:53 PM PDT     -0.00 knots Slack
Mon -- 05:33 PM PDT     -1.35 knots Max Ebb
Mon -- 06:32 PM PDT     Sunset
Mon -- 07:25 PM PDT     Moonrise
Mon -- 08:47 PM PDT     0.00 knots Slack
Mon -- 11:58 PM PDT     1.65 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.20.70-0.7-1-1-0.6-0.20.41.11.51.41.10.6-0.1-0.8-1.3-1.3-1-0.50.10.91.5

Weather Map
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wmap_P
GEOS 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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (6,6,7,8)
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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.