Saturday, October19, 2019 L-36.com


Marine Weather and Tides
Norris Canyon, 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 7:18AMSunset 6:26PM Saturday October 19, 2019 3:29 PM PDT (22:29 UTC) Moonrise 9:44PMMoonset 11:53AM Illumination 63% Phase: Waning Gibbous; Moon at 21 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- 244 Pm Pdt Sat Oct 19 2019
Rest of today..W winds 10 to 15 kt with gusts up to 25 kt.
Tonight..W winds 5 to 15 kt.
Sun..NW winds 5 to 15 kt.
Sun night..W winds 5 to 15 kt.
Mon..NW winds 5 to 10 kt.
Mon night..W winds around 5 kt.
Tue..NW winds 5 to 15 kt.
Wed..N winds 5 to 15 kt.
PZZ500 244 Pm Pdt Sat Oct 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Locally moderate northwest winds today, with the strongest winds along of the big sur coastline. Northwest swell will subside through the weekend and into early next week. Locally borderline small craft winds and hazardous seas in the outer waters through the rest of the day, diminishing overnight.


7 Day Forecast for Marine Location Near Norris Canyon, CA
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location: 37.7, -121.99     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 192029
afdmtr
area forecast discussion
national weather service san francisco bay area
129 pm pdt Sat oct 19 2019

Synopsis A passing weak cold front will bring breezy winds to
the coast this afternoon. A slight warming trend is expected
this weekend, before a more robust warming trend next week. High
pressure will build over the eastern pacific setting up offshore
flow by midweek.

Discussion As of 1:30 pm pdt Saturday... The weak front that
is moving across northern california did produce some measurable
rain in the north bay. Santa rosa picked up a couple hundredths,
and 0.05 inch was received at bodega bay. Breezy west winds are
expected behind this front, mainly near the coast. Onshore flow
will continue on Sunday with slightly warmer temps. Highs will be
in the 60s and 70s.

A more robust warming trend will occur next week as an upper
level ridge builds over the eastern pacific. High temperatures are
expected to warm into the 70s and 80s next week as the ridge axis
moves slowly east into california. Additionally, the surface
pressure gradients will trend offshore, and the stronger offshore
winds coupled with a much drier and warm airmass will elevate fire
weather concerns. Conditions are expected to become more critical
after midweek when the gradient tightens. The ridge will begin to
flatten by week's end as an upper level trough digs into the great
basin.

Aviation As of 10:50 am pdt Saturday... Weak frontal passage
will bring vcsh to ksts and MVFR CIGS across the region as it
passes through this afternoon. Winds generally light to locally
breezy in favored locations. Clearing rapidly returns tonight
into Sunday morning.

Vicinity of ksfo... Deteriorating CIGS over the next few hours as
boundary approaches with bkn ovc 2000-2500 ft posbl thru the day.

Not expecting wetting rains to impact the runways with this
system. Sust winds increasing to around 15kt with occasional gusts
into the low 20kts posbl after 21z.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Increasing clouds from the northwest
today. Lower level clouds will bring MVFR CIGS after 20-21z thru
the rest of the day before clearing out overnight. Winds 10kt or
less. No wetting rains on the runways.

Fire weather As of 3:05 pm pdt Friday... Two main fire weather
concerns over the next seven days. The first impact will be
focused tonight over the higher terrain of the santa lucia
mountains. Hi-res WRF model continues to show a localized
offshore flow scenario tonight with N to NE winds 25-35 mph with
poor humidity recovery. The second impact will be focused on next
week. High pressure is forecast to build starting Sunday Monday
and continue through much of the next week with a warming and
drying trend. More importantly, offshore flow is forecast to
develop on Monday and increase each day before peaking Wednesday
night Thursday morning. Latest GFS continues to show a robust
15mb+ sfo-wmc... That being said the ECMWF isn't as strong. None
the less, this situation next week needs watching. Even if the
strength of the wind doesn't verify rh will be low by night number
three. Stay tuned... .

Marine As of 10:43 am pdt Saturday... High pressure will build
over the eastern pacific and extend over far northern california
into the great basin through early to mid next week. Northwest
swell will subside through the weekend and into early next week.

Mtr watches warnings advisories
Tngt Sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Rough bar advisory for sf bar
public forecast: sims
aviation: drp
marine: drp
fire weather: mm
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
AAMC1 - 9414750 - Alameda, CA 17 mi60 min WSW 7 G 8
LNDC1 17 mi60 min WSW 5.1 G 8.9 63°F 1018.1 hPa
RTYC1 - 9414523 - Redwood City, CA 18 mi60 min NNW 2.9 G 5.1 65°F 64°F1018.9 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 19 mi60 min WSW 6 G 8
OBXC1 20 mi60 min 63°F 61°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 20 mi60 min W 4.1 G 8 62°F 1018.1 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi66 min W 5.1 G 12 64°F 1017.2 hPa
PXSC1 23 mi60 min 64°F 60°F
UPBC1 24 mi60 min SW 13 G 17
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 24 mi60 min W 8 G 14 69°F 1016.8 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 24 mi60 min SSW 12 G 16 66°F 64°F1017.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 24 mi66 min SW 9.9 G 14 60°F 1018.3 hPa
PCOC1 - 9415144 - Port Chicago, CA 25 mi60 min SW 7 G 11 68°F 63°F1017.3 hPa
FTPC1 - 9414290 - San Francisco, CA 26 mi60 min SW 8.9 G 15
RCMC1 - 9414863 - Richmond, CA 27 mi60 min S 7 G 12
TIBC1 - Tiburon Pier, San Francisco Bay, CA 28 mi67 min SW 8.9 58°F 1018 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 29 mi60 min SW 11 G 14 63°F 1017 hPa
46237 - San Francisco Bar, CA (142) 35 mi60 min 55°F6 ft
SFXC1 - San Francisco Bay Reserve, CA 35 mi105 min W 12 69°F 1017 hPa56°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 45 mi40 min W 12 G 16 58°F 56°F9 ft1019 hPa

Wind History for Alameda, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hayward, Hayward Air Terminal, CA7 mi36 minWSW 510.00 miOvercast66°F57°F73%1019 hPa
Livermore, Livermore Municipal Airport, CA9 mi37 minWSW 1210.00 miOvercast68°F54°F61%1017.4 hPa
Oakland, Metro Oakland International Airport, CA12 mi37 minW 910.00 miMostly Cloudy67°F57°F71%1018.1 hPa
Palo Alto Airport, CA17 mi43 minN 710.00 miMostly Cloudy64°F57°F78%1018.3 hPa
San Carlos Airport, CA18 mi43 minSW 810.00 miOvercast66°F57°F73%1018.3 hPa
Concord, Buchanan Field, CA20 mi37 minSSW 910.00 miOvercast69°F55°F61%1015.9 hPa
San Francisco, San Francisco International Airport, CA20 mi94 minWSW 13 G 1910.00 miMostly Cloudy70°F55°F61%1018 hPa
San Jose, San Jose International Airport, CA23 mi37 minNW 1010.00 miMostly Cloudy73°F57°F57%1017.7 hPa

Link to 5 minute data for KHWD

Wind History from HWD (wind in knots)
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Last 24hrW13W14W14W10W6W7W6CalmS3SE3SE5SE6SE6SE5SE6SE5E4SE4S6S6W555W5
1 day agoW16W17W15W6W6NW7W8NW6SE4CalmCalmCalmCalmE4NE5NE3E3E4SE4CalmW8W11W11W13
2 days agoW9W10W7W5W4CalmCalmSW3SE3CalmCalmW6CalmW8W5NW3CalmW5W8W10W10W11W15W14
G21

Tide / Current Tables for Roberts Landing, 1.3 miles west of, San Francisco Bay, California
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Roberts Landing
Click for Map
Sat -- 05:53 AM PDT     5.68 feet High Tide
Sat -- 07:20 AM PDT     Sunrise
Sat -- 10:48 AM PDT     3.28 feet Low Tide
Sat -- 12:53 PM PDT     Moonset
Sat -- 04:20 PM PDT     6.83 feet High Tide
Sat -- 06:25 PM PDT     Sunset
Sat -- 10:44 PM PDT     Moonrise
Sat -- 11:53 PM PDT     0.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.71.62.73.84.85.55.75.44.743.43.33.74.45.46.36.86.76.25.13.82.41.20.4

Tide / Current Tables for Little Coyote Pt 3.4 mi NNE, South San Francisco Bay, California Current
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Little Coyote Pt 3.4 mi NNE
Click for Map
Sat -- 01:45 AM PDT     0.59 knots Max Flood
Sat -- 05:22 AM PDT     -0.00 knots Slack
Sat -- 07:20 AM PDT     Sunrise
Sat -- 07:54 AM PDT     -0.39 knots Max Ebb
Sat -- 10:26 AM PDT     0.00 knots Slack
Sat -- 12:53 PM PDT     Moonset
Sat -- 01:32 PM PDT     0.36 knots Max Flood
Sat -- 04:03 PM PDT     -0.00 knots Slack
Sat -- 06:26 PM PDT     Sunset
Sat -- 08:08 PM PDT     -0.80 knots Max Ebb
Sat -- 10:45 PM PDT     Moonrise
Sat -- 11:38 PM PDT     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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0.40.50.60.50.30.1-0.1-0.3-0.4-0.3-0.10.10.20.30.30.20-0.2-0.5-0.7-0.8-0.7-0.5-0.2

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 (18,4,5,8)
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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.