Tuesday, October15, 2019 L-36.com


Marine Weather and Tides
Ladera, 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 7:15AMSunset 6:33PM Tuesday October 15, 2019 5:07 AM PDT (12:07 UTC) Moonrise 6:56PMMoonset 7:52AM Illumination 97% 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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 220 Am Pdt Tue Oct 15 2019
Today..SW winds up to 10 kt.
Tonight..SW winds up to 10 kt.
Wed..SW winds 5 to 15 kt.
Wed night..SW winds 5 to 15 kt. A slight chance of rain.
Thu..W winds 5 to 15 kt.
Thu night..NW winds 5 to 15 kt.
Fri..W winds 10 to 20 kt with gusts up to 25 kt.
Sat..W winds 10 to 20 kt with gusts up to 25 kt.
PZZ500 220 Am Pdt Tue Oct 15 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 are forecast to prevail over the coastal waters through Tuesday. Winds will gradually increase later this week behind a passing front that will bring a slight chance of light rain to parts of the waters. A larger northwest swell is forecast to arrive later this week with forerunners expected as early as Wednesday night or Thursday.


7 Day Forecast for Marine Location Near Ladera, CA
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location: 37.4, -122.21     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 151145
afdmtr
area forecast discussion
national weather service san francisco bay area
445 am pdt Tue oct 15 2019

Synopsis Slight warming will be possible across the interior
today ahead of a weak frontal system that will move through the
region Wednesday night. Light rain will be possible for portions of
the north bay and as far south as the monterey peninsula late
Wednesday into early Thursday. Breezy conditions develop and
temperatures turn cooler for the remainder of the week in wake of
the frontal passage.

Discussion As of 03:04 am pdt Tuesday... A marine layer of
between 1,000 to 1,500 feet in depth has resulted in stratus
development along the coast and locally inland into the salinas
valley. Meanwhile, patchy dense fog is being reported in the
sonoma valley and portions of northern marin county. Temperatures
region-wide range from the middle 40s in the cooler valley
locations to the lower 50s. A slight warming trend will be
possible across interior portions of the region this afternoon as
a weak short-wave ridge builds over the region. However, many
coastal locations will see little change overall compared to
yesterday given the persistent onshore flow and overnight morning
cloud cover.

Conditions will not change much overnight in advance of an
approaching weather system that will push into the pacific northwest
late tonight into Wednesday. This system will push a frontal
boundary through the san francisco bay area by Wednesday night
resulting in a slight chance of light rain across portions of the
north bay. Precipitation along this boundary is forecast to be light
in nature as the frontal boundary dissipates over the central coast
early Thursday morning. The latest operational models and ensemble
members show light rain as far south as monterey, yet widespread
measurable rainfall south of the north bay (primarily sonoma county)
appears unlikely. Those that do pick up measurable rainfall will
likely see less than a tenth of an inch.

Increasing northwest winds are forecast to develop and become gusty
by Thursday afternoon in wake of the frontal passage. At this time,
cannot rule out gsts of 30 to 40 mph along coastal areas and in the
higher elevations. A much cooler air mass will also advect into the
region with daytime high temperatures likely to remain the 60s to
lower 70s. Some coastal and higher elevation locations may even
struggle to warm out of the upper 50s Thursday afternoon. Little
change is forecast heading into Friday as well as Saturday with
seasonably cool and breezy weather conditions. Another weak short-
wave trough is forecast to bring another round of light
precipitation to northern california and as far south as sonoma
county Friday night into Saturday. However, as with the first
system, precipitation if any will be very light. A more robust
warming and drying trend is then likely Sunday into early next week
as a ridge of high pressure builds over the region.

Aviation As of 4:45 am pdt Tuesday... For 12z tafs. Infrared
satellite imagery reveals areas of stratus impacting parts of the
san francisco bay area and central california coast this morning.

As of the 12z TAF publication time, terminals were reporting
anywhere fromVFR conditions at lvk and sjc all the way down to
lifr vlifr conditions at sts. Do expect a gradual increase in
stratus coverage through sunrise, possibly impacting oak and sfo.

Low clouds will then mix-out around mid- morning withVFR
conditions returning.

Vicinity of ksfo... Stratus is beginning to fill in over the
southern half of the san francisco bay, and is expected to
gradually expand toward the terminal from the bay through sunrise
with the potential for MVFR ifr bkn ceilings at the terminal
itself. Low clouds will dissipate around mid-morning withVFR
conditions for the afternoon. Light winds this morning will
increase out of the west around 12-17 kt this afternoon.

Sfo bridge approach... Infrared satellite shows low clouds
developing over the southern half of the san francisco bay as of
the 12z TAF publication time. The low clouds are expected to
expand in coverage through sunrise, then begin to mix-out around
mid-morning.

Monterey bay terminals... Ifr lifr ceilings and or visibilities
through sunrise, slowly improving through the morning and
returning toVFR around 17z for both sns and mry. Light offshore
winds this morning will reverse and become onshore around mid-day.

Marine As of 02:20 am pdt Tuesday... Generally light northwest
winds are forecast to prevail over the coastal waters through
Tuesday. Winds will gradually increase later this week behind a
passing front that will bring a slight chance of light rain to
parts of the waters. A larger northwest swell is forecast to
arrive later this week with forerunners expected as early as
Wednesday night or Thursday.

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
RTYC1 - 9414523 - Redwood City, CA 7 mi49 min NW 1.9 G 2.9 53°F 67°F1018.1 hPa
AAMC1 - 9414750 - Alameda, CA 26 mi55 min WNW 1.9 G 4.1 53°F 63°F1017.9 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 28 mi49 min W 5.1 G 7
LNDC1 28 mi49 min NNW 2.9 G 5.1 52°F 1017.5 hPa
OBXC1 29 mi49 min 52°F 52°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi49 min WSW 5.1 G 7 51°F 1016.4 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 29 mi49 min WNW 5.1 G 6 51°F 1017.5 hPa
PXSC1 30 mi49 min 52°F 52°F
FTPC1 - 9414290 - San Francisco, CA 31 mi55 min SW 7 G 9.9 50°F 57°F1017.7 hPa
46237 - San Francisco Bar, CA (142) 35 mi37 min 55°F4 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 36 mi44 min WSW 1.9 49°F 1017 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 36 mi49 min SW 2.9 G 5.1 54°F 1017.6 hPa
RCMC1 - 9414863 - Richmond, CA 38 mi49 min 60°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi27 min WNW 1.9 G 3.9 51°F 56°F1018.1 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 44 mi77 min 9.7 G 12 53°F 58°F7 ft1017.1 hPa (+0.4)
MZXC1 - 9415102 - Martinez-Amorco CA 44 mi49 min W 12 G 13 53°F 64°F1017 hPa53°F
UPBC1 44 mi49 min WNW 9.9 G 14
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 45 mi49 min NNW 8 G 9.9 50°F 1017.1 hPa
PCOC1 - 9415144 - Port Chicago, CA 46 mi49 min W 13 G 17 53°F 64°F1016.9 hPa
46092 - MBM1 46 mi56 min N 3.9 52°F 57°F1017.1 hPa (+0.3)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 47 mi49 min WNW 8.9 G 12 55°F 1016.1 hPa
46114 - West Monterey Bay, CA 47 mi37 min 58°F6 ft
ELXC1 - Elkhorn Slough Reserve, CA 48 mi82 min ENE 1.9 48°F 1016 hPa48°F

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA15 mi74 minW 310.00 miFair51°F48°F92%1017.2 hPa
San Francisco, San Francisco International Airport, CA17 mi71 minWNW 1010.00 miA Few Clouds50°F46°F89%1017.3 hPa
Half Moon Bay Airport, CA17 mi67 minENE 57.00 miOvercast48°F46°F94%1017.9 hPa
Hayward, Hayward Air Terminal, CA19 mi73 minNE 310.00 miFair49°F43°F80%1018.2 hPa
Oakland, Metro Oakland International Airport, CA21 mi74 minN 410.00 miA Few Clouds50°F46°F89%1017.6 hPa

Link to 5 minute data for KPAO

Wind History from PAO (wind in knots)
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Last 24hr----------------------CalmCalm44N5N7--N9NW11NW10NW10NW4NW4
1 day ago------------------Calm------N6N7N10N8N7N11N11N11N10NW6W4
2 days ago------------------CalmCalm--------N6N7--NW7N7----NW4--

Tide / Current Tables for Redwood City, Wharf 5, San Francisco Bay, California (sub)
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
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Dumbarton Point 2.3 mi NE
Click for Map
Tue -- 02:49 AM PDT     -0.00 knots Slack
Tue -- 06:48 AM PDT     -0.92 knots Max Ebb
Tue -- 07:16 AM PDT     Sunrise
Tue -- 08:51 AM PDT     Moonset
Tue -- 08:58 AM PDT     0.00 knots Slack
Tue -- 11:32 AM PDT     1.10 knots Max Flood
Tue -- 02:28 PM PDT     -0.00 knots Slack
Tue -- 06:31 PM PDT     Sunset
Tue -- 07:02 PM PDT     -1.26 knots Max Ebb
Tue -- 07:55 PM PDT     Moonrise
Tue -- 09:32 PM PDT     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.310.5-0.1-0.4-0.7-0.9-0.9-0.500.611.10.80.3-0.2-0.6-0.9-1.2-1.3-1-0.40.31

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 (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.