Monday, October14, 2019 L-36.com


Marine Weather and Tides
El Granada, 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 7:16AMSunset 6:35PM Monday October 14, 2019 4:42 AM PDT (11:42 UTC) Moonrise 6:27PMMoonset 6:54AM Illumination 99% 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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PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 235 Am Pdt Mon Oct 14 2019
Today..SW winds around 5 kt. Wind waves 1 to 2 ft. NW swell 5 to 7 ft at 10 seconds.
Tonight..W winds around 5 kt. Wind waves 1 ft. NW swell 4 to 6 ft at 11 seconds and sw around 2 ft at 17 seconds.
Tue..NW winds up to 10 kt. Wind waves 1 to 2 ft. NW swell 3 to 5 ft at 11 seconds and sw around 2 ft at 17 seconds.
Tue night..NW winds 5 to 15 kt. Wind waves 2 to 3 ft. NW swell 3 to 4 ft at 10 seconds and sw around 2 ft at 17 seconds.
Wed..NW winds 5 to 10 kt. Wind waves 2 to 3 ft. NW swell 3 to 4 ft at 10 seconds and sw around 2 ft at 17 seconds.
Wed night..W winds up to 10 kt. Wind waves 2 to 3 ft. W swell 5 to 7 ft at 14 seconds and sw 2 to 3 ft at 16 seconds.
Thu..NW winds 15 to 25 kt. Wind waves 5 to 6 ft. W swell 9 to 11 ft and sw 2 to 3 ft.
Fri..NW winds 10 to 20 kt. Wind waves 4 to 5 ft. W swell 10 to 12 ft and sw 2 to 3 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...seas 2 to 4 ft with a dominant period of 14 seconds. Across the bar...seas 3 to 4 ft with a dominant period of 14 seconds. Maximum ebb current of 1.8 kt at 05:37 am Monday and 3.2 kt at 05:31 pm Monday.
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 El Granada, CA
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location: 37.5, -122.48     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 141116
afdmtr
area forecast discussion
national weather service san francisco bay area
416 am pdt Mon oct 14 2019

Synopsis Seasonably mild conditions will persist through
Tuesday. A frontal system will move through the region late
Wednesday and may produce light rain over the northern portions of
the north bay. Post-frontal breezy conditions and cooler
temperatures are expected from late Wednesday through Thursday and
may persist into the upcoming weekend.

Discussion As of 3:27 am pdt Monday... Patchy low clouds
persist along portions of the coast this morning and have spread
locally inland down into the salinas valley. Meanwhile, more
widespread fog is being reported over the sonoma valley with
temperatures ranging from the middle 40s to lower 50s region-wide.

This is in response to a mid upper level trough over much of the
west coast. Low clouds and fog will begin to dissipate after
sunrise with temperatures warming into the 70s to lower 80s inland
this afternoon. Coastal locations will likely only warm into the
upper 60s to lower 70s as onshore flow persists.

Temperatures look to warm by a few degrees heading into Tuesday
as a weak short-wave ridge will move over the region in wake of
the exiting mid upper level trough. Conditions will cool slightly
over the northern portion of the region on Wednesday in advance of
an approaching weather system. The core of this system will push
inland over the pacific northwest and drive a weak frontal
boundary into northern california late Wednesday into Wednesday
night. Thus, a slight chance of rain remains in the forecast for
the north bay. However, measurable rainfall south of northern
sonoma county appear unlikely as the frontal system dissipates
Wednesday night into Thursday morning. This system will also
result in cooler temperatures region-wide through late week.

In addition, locally gusty post-frontal northwest winds are
expected Wednesday into Thursday, primarily in coastal locations.

Breezy conditions will likely continue through late week and
potentially into the upcoming weekend with temperatures near to
slightly below seasonal averages. Ongoing dry weather conditions
are also likely to persist late in the forecast period.

Aviation As of 4:16 am pdt Monday... For 12z tafs. Infrared
satellite imagery shows some areas of low clouds fog along the
central california coast this morning, pushing inland to parts of
the north bay and salinas valley. Most TAF sites will remainVFR
through the TAF period with the exception being sts, sns, and
possibly mry this morning with low ceilings and or visibilities
for another several hours. Light winds this morning will become
onshore this afternoon.

Vicinity of ksfo...VFR conditions are forecast to prevail. Low
clouds should remain on the pacific side of the peninsula away
from the terminal. Light variable winds this morning will become
onshore this afternoon around 10-15 kt.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Ifr ceilings will impact sns over the
next few hours, then becomingVFR around mid-morning. Mry may see
temporary over the next few hours, otherwise remainingVFR this
morning. Light offshore winds will switch onshore around mid-day.

Marine As of 2:35 am pdt Monday... 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.

Mtr watches warnings advisories
Tday Sca... Pt arena to pigeon pt 10-60 nm until 9 am
sca... Pigeon pt to pt piedras blancas 10-60 nm until 9 am
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 14 mi55 min SSE 1 G 1.9 52°F 67°F1013.4 hPa
AAMC1 - 9414750 - Alameda, CA 21 mi61 min E 1 G 1.9 54°F 63°F1013.1 hPa
FTPC1 - 9414290 - San Francisco, CA 21 mi61 min WSW 4.1 G 6 54°F 57°F1012.9 hPa
46237 - San Francisco Bar, CA (142) 21 mi73 min 55°F5 ft
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi55 min Calm G 1.9 55°F 1011.6 hPa
PXSC1 21 mi55 min 55°F 53°F
OBXC1 22 mi55 min 55°F 54°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 22 mi55 min SE 1.9 G 1.9
LNDC1 23 mi55 min SE 2.9 G 2.9 54°F 1012.6 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 23 mi55 min SW 1 G 1.9 54°F 1012.6 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 26 mi43 min SSW 1.9 G 5.8 54°F 55°F1013.2 hPa (+0.0)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 27 mi44 min Calm 53°F 1012 hPa
RCMC1 - 9414863 - Richmond, CA 29 mi55 min 60°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 29 mi55 min S 5.1 G 9.9 56°F 1012.9 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi55 min SW 7 G 9.9 55°F 1012.2 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 41 mi55 min W 9.9 G 11 1012.4 hPa
UPBC1 42 mi55 min WNW 8.9 G 11
PRYC1 - 9415020 - Point Reyes, CA 43 mi55 min 1012.4 hPa
PCOC1 - 9415144 - Port Chicago, CA 45 mi55 min SW 6 G 8.9 1012.3 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 49 mi55 min NW 8 G 11 1011.2 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Half Moon Bay Airport, CA1 mi48 minNE 310.00 miOvercast48°F46°F94%1012.9 hPa
San Francisco, San Francisco International Airport, CA10 mi1.8 hrsN 010.00 miA Few Clouds54°F44°F69%1012.8 hPa
Oakland, Metro Oakland International Airport, CA20 mi50 minN 010.00 miA Few Clouds47°F44°F90%1013 hPa
Hayward, Hayward Air Terminal, CA22 mi49 minENE 310.00 miFair49°F41°F74%1013.7 hPa

Link to 5 minute data for KSFO

Wind History from SFO (wind in knots)
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Last 24hrW5W5CalmW12W10NW4NE3NW13NW9NW10W15W16W17W14W9NW10NW7NW7W10W6W6CalmCalm3
1 day agoSW4CalmCalmCalmN4N5N5NE4NE4N4NE3NW12NW11NW12W14W14W14W8S4W6W7W7W3W10
2 days agoCalmS3S4CalmCalm3CalmCalmCalmNE3CalmCalmCalmNE3W12W13W12NW7W6W5S4CalmCalmCalm

Tide / Current Tables for Princeton, Half Moon Bay, California
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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 San Mateo Bridge, South San Francisco Bay, California Current
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San Mateo Bridge
Click for Map
Mon -- 02:32 AM PDT     -0.00 knots Slack
Mon -- 05:28 AM PDT     -1.30 knots Max Ebb
Mon -- 07:16 AM PDT     Sunrise
Mon -- 07:53 AM PDT     Moonset
Mon -- 08:31 AM PDT     0.00 knots Slack
Mon -- 11:10 AM PDT     1.46 knots Max Flood
Mon -- 02:26 PM PDT     -0.00 knots Slack
Mon -- 05:44 PM PDT     -1.62 knots Max Ebb
Mon -- 06:33 PM PDT     Sunset
Mon -- 07:25 PM PDT     Moonrise
Mon -- 08:58 PM PDT     0.00 knots Slack
Mon -- 11:42 PM PDT     1.64 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.10.4-0.3-0.9-1.3-1.2-0.9-0.30.41.11.51.310.3-0.4-1.1-1.5-1.6-1.2-0.700.91.5

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (7,2,3,4)
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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.