Wednesday, June26, 2019 L-36.com


Marine Weather and Tides
San Francisco, CA

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Sunrise 5:47AMSunset 8:37PM Tuesday June 25, 2019 9:48 PM PDT (04:48 UTC) Moonrise 12:27AMMoonset 12:32PM Illumination 38% Phase: Third Quarter Moon; Moon at 23 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- 844 Pm Pdt Tue Jun 25 2019
Tonight..W winds 10 to 15 kt. Gusts up to 25 kt this evening.
Wed..W winds 15 to 20 kt with gusts up to 25 kt.
Wed night..W winds 15 to 20 kt with gusts up to 25 kt.
Thu..W winds 15 to 20 kt with gusts up to 30 kt.
Thu night..W winds 10 to 15 kt with gusts up to 25 kt.
Fri..W winds 10 to 15 kt.
Fri night..W winds 10 to 15 kt.
Sat..W winds 15 to 20 kt with gusts up to 25 kt.
Sun..W winds 15 to 20 kt with gusts up to 25 kt.
PZZ500 844 Pm Pdt Tue Jun 25 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure off the california coast will shift south tonight and Wednesday as a low pressure system moves into the pacific northwest waters. As a result winds will decrease over the northern waters and increase over the southern waters Wednesday and Thursday. The high will rebuild northward on Friday and the strongest winds will be in the northern waters.


7 Day Forecast for Marine Location Near San Francisco, CA
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location: 37.81, -122.44     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 252340
afdmtr
area forecast discussion
national weather service san francisco bay area
440 pm pdt Tue jun 25 2019

Synopsis Generally quiet weather is expected for the bay area
over the next several days. Mostly sunny conditions prevail today
as low-level clouds continue to travel southward allowing skies to
clear along the coast, but the stratus can be expected to return
overnight for southern counties. Temperatures continue a cooling
trend today through Thursday. Warmer temperatures can be expected
at the end of the work week and through the weekend; however, they
are still expected to be cooler than seasonal averages.

Discussion As of 1:43 pm pdt Tuesday... An upper level trough
is currently over the north pacific ocean and traveling east
towards the pacific northwest. This passing of the trough to our
north is what is driving the consistent onshore winds as well as
the recent cooling trend. As the trough axis approaches Wednesday,
temperatures in inland areas, particularly interior the north and
east bays could see temperatures drop by as much as 10 degrees.

High temperatures are expected to continue to decrease on Thursday
as well, but not nearly as dramatically.

Breezy northerly winds off the coast have helped mix the marine
layer and leave mostly sunny skies across the area, with a few high
level cirrus clouds moving east. The marine layer is expected to
return overnight; however, it looks as be limited to confine itself
mostly to south of the santa cruz mountains.

Late in the week and into Friday, the upper level trough tries to
lift towards british columbia allowing for high pressure to build
back into the region along with warmer temperatures. The magnitude
of this warming is still uncertain due to model disagreement. The
gfs has the trough lifting out quicker which could mean a much
warmer trend for the bay area; however, the euro shows the upper low
become more stationary and lingers in the pacific northwest, which
could provide cooler conditions.

Aviation As of 4:40 pm pdt Tuesday... Low clouds have cleared
away from the coast this afternoon. Onshore flow is northwesterly
with a fairly robust north-south component. This is evident by a 4
pm METAR report of north winds gusting to 25 kt at sts. This
should be enough to keep stratus out of the sfo bay area tonight.

Stratus should be confined to the coast where ifr CIGS area
expected at mry and sns after 04z.

Vicinity of ksfo... RemainingVFR. W to NW winds increasing 15-18
kt with gusts to 25 kt decreasing after 04z.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Ifr after 04z possibly later.

Marine As of 04:28 pm pdt Tuesday... Gusty northwest winds will
gradually diminish over the norther outer waters through tonight.

However, gusty winds will persist along the big sur coast south of
point sur and during the afternoon hours over the coastal gaps and
bays. These winds will generate steep fresh swell resulting in
hazardous conditions over the waters, particularly for smaller
vessels. Expect northwest winds to re-strengthen later this week.

Mtr watches warnings advisories
Tngt Sca... Mry bay until 10 pm
sca... Pigeon pt to pt pinos 0-10 nm until 10 pm
sca... Pt arena to pt reyes 0-10 nm until 4 am
sca... Pt reyes to pigeon pt 0-10 nm until 4 am
sca... Pt arena to pigeon pt 10-60 nm until 4 am
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Sf bay until 9 pm
public forecast: dk
aviation: W pi
marine: rgass
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FTPC1 - 9414290 - San Francisco, CA 1 mi55 min WSW 8.9 G 17 58°F 59°F1012 hPa
PXSC1 2 mi49 min 60°F 54°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 3 mi49 min WSW 9.9 G 15 59°F 1010.7 hPa
OBXC1 5 mi49 min 61°F 55°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 6 mi38 min SW 1.9 62°F 1011 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 6 mi49 min W 6 G 8 60°F 1011.8 hPa (+0.9)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 6 mi49 min WSW 9.9 G 12
AAMC1 - 9414750 - Alameda, CA 8 mi55 min W 8 G 11 61°F 69°F1012.4 hPa
LNDC1 8 mi49 min W 8 G 11 61°F 1011.9 hPa (+1.1)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 8 mi49 min S 5.1 G 7 64°F 1011.6 hPa
RCMC1 - 9414863 - Richmond, CA 8 mi55 min S 4.1 G 5.1 65°F 65°F1011 hPa
46237 - San Francisco Bar, CA (142) 10 mi49 min 60°F5 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 19 mi49 min SW 13 G 16 65°F 1010.2 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 21 mi29 min WNW 18 G 21 57°F 57°F1013 hPa
UPBC1 23 mi49 min W 15 G 23
MZXC1 - 9415102 - Martinez-Amorco CA 23 mi49 min W 13 G 15 1010.3 hPa (+1.2)
RTYC1 - 9414523 - Redwood City, CA 24 mi49 min WSW 11 G 13 62°F 76°F1013.1 hPa (+1.4)
PCOC1 - 9415144 - Port Chicago, CA 27 mi49 min SW 11 G 14 1010.2 hPa (+1.1)
PRYC1 - 9415020 - Point Reyes, CA 31 mi49 min 1012.3 hPa (+0.8)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 33 mi49 min W 8 G 15 1009.2 hPa (+1.0)
SFXC1 - San Francisco Bay Reserve, CA 35 mi64 min WSW 5.1 68°F 1010 hPa44°F

Wind History for San Francisco, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA14 mi56 minW 1110.00 miA Few Clouds62°F51°F67%1012.1 hPa
San Francisco, San Francisco International Airport, CA14 mi53 minW 1010.00 miA Few Clouds61°F46°F60%1011.8 hPa
Hayward, Hayward Air Terminal, CA20 mi55 minW 510.00 miFair62°F50°F65%1013.1 hPa
Half Moon Bay Airport, CA21 mi54 minNW 410.00 miMostly Cloudy55°F53°F94%1013.5 hPa
San Carlos Airport, CA22 mi2 hrsSW 11 G 1710.00 miA Few Clouds63°F48°F60%1012.2 hPa
Concord, Buchanan Field, CA24 mi56 minS 1410.00 miFair68°F50°F53%1009 hPa
Novato / Gnoss Field, CA24 mi54 minESE 910.00 miFair66°F39°F37%1010.5 hPa

Wind History from SFO (wind in knots)
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Last 24hrNW10NW10NW7W5NW6NW6W7NW6NW7NW7NW8NW9NW11NW11NW12W15W13W17
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1 day agoW12W12W7W7NW9W6W6W4W6CalmCalmNE4N6N6N6NW9NW13NW16NW18NW16NW15NW13NW14W14
2 days agoW9W8W8W11W8W7W8W7W6W6W5CalmN5N5N7NW8NW13W22NW16NW16W21NW19NW15NW12

Tide / Current Tables for San Francisco, California
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San Francisco
Click for Map
Wed -- 01:39 AM PDT     1.93 feet Low Tide
Wed -- 01:54 AM PDT     Moonrise
Wed -- 05:49 AM PDT     Sunrise
Wed -- 07:08 AM PDT     3.62 feet High Tide
Wed -- 12:49 PM PDT     1.45 feet Low Tide
Wed -- 02:29 PM PDT     Moonset
Wed -- 07:46 PM PDT     5.36 feet High Tide
Wed -- 08:35 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.421.92.22.63.13.43.63.53.12.621.61.51.72.33.144.75.25.454.33.4

Tide / Current Tables for Alcatraz Island S, San Francisco Bay, California Current
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Alcatraz Island S
Click for Map
Wed -- 01:53 AM PDT     Moonrise
Wed -- 03:19 AM PDT     0.00 knots Slack
Wed -- 05:49 AM PDT     Sunrise
Wed -- 06:04 AM PDT     0.79 knots Max Flood
Wed -- 08:46 AM PDT     -0.00 knots Slack
Wed -- 11:14 AM PDT     -1.31 knots Max Ebb
Wed -- 02:29 PM PDT     Moonset
Wed -- 02:54 PM PDT     0.00 knots Slack
Wed -- 06:11 PM PDT     1.17 knots Max Flood
Wed -- 08:35 PM PDT     Sunset
Wed -- 09:12 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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-1.4-1.1-0.7-0.20.30.70.80.70.4-0.2-0.9-1.3-1.2-0.9-0.500.511.21.10.70.1-0.8-1.5

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (0,6,7,8)
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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.