Sunday, June25, 2017 L-36.com


Marine Weather and Tides
Foster City, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:48AMSunset 8:35PM Sunday June 25, 2017 8:42 PM PDT (03:42 UTC) Moonrise 6:41AMMoonset 9:11PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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- 215 Pm Pdt Sun Jun 25 2017
Tonight..W winds 5 to 15 kt. Patchy fog after midnight.
Mon..W winds 5 to 15 kt. Patchy fog in the morning.
Mon night..W winds 5 to 15 kt. Patchy fog after midnight.
Tue..W winds 10 to 20 kt. Patchy fog in the morning.
Tue night..W winds 15 to 25 kt. Patchy fog after midnight.
Wed..W winds 10 to 20 kt. Patchy fog.
Thu..SW winds 10 kt. Patchy fog.
Fri..SW winds 10 kt. Patchy fog.
PZZ500 215 Pm Pdt Sun Jun 25 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure off the west coast will maintain northerly winds over the coastal waters through the coming week. Winds will be locally stronger along the immediate coast. Seas will be small with a dominant southerly swell.

7 Day Forecast for Marine Location Near Foster City, CA
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location: 37.55, -122.24     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 260208
afdmtr
area forecast discussion
national weather service san francisco bay area
708 pm pdt Sun jun 25 2017

Synopsis Look for continued cooling inland through Monday as
the ridge of high pressure that had been overhead continues to
progress to the east. Also areas of night and morning low clouds
and fog followed by sunny afternoons can be expected. Modest
warming is expected during the second half of the week, however
highs will fall well short of the recent heatwave.

Discussion As of 07:08 pm pdt Sunday... The cool down continued
this afternoon across locations that experienced very hot
conditions late last week. High temperatures dropped 6 degrees
from yesterday to today in concord (88 to 82), 5 degrees in
livermore (85 to 80), and even 4 degrees in san jose (78 to 74).

These highs translate to values that are about 2 to 8 degrees
below late june climatological normals -- a rather drastic change
from several days ago when these same locations were 15 to 25
degrees above normal. Most of the coastline along and north of
half moon bay managed to remain overcast through the entire day
while the marine stratus was able to mix out throughout monterey
bay. Do expect the overcast skies to return later tonight for most
coastal areas with the marine layer sitting around 1,500 ft per
the fort ord profiler. A weak shortwave trough will push through
northern california and oregon through tomorrow and will allow for
interior temperatures to drop another few degrees for Monday
afternoon.

The current forecast remains on track and no major updates
planned this evening. Please refer to previous discussion for
additional details.

Prev discussion As of 2:00 pm pdt Sunday... As expected
temperatures are running cooler than yesterday especially for
inland locations. Overall looking at a drop of 4 to 9 degrees away
from the coast with temperatures close to Saturday's values.

Synoptically the strong high pressure ridge aloft has continued to
progress to the east while a more pronounced onshore flow is
setting up. Look for a quick return of the clouds this evening
along with patchy drizzle.

The ridge will continue to move to the east on Monday while 850 mb
temperatures drop another 2c down to the 19-21c range. Highs end
up being another 2 to 5 degrees cooler in most locations -- 70s to
mid 80s inland with mostly 60s at the coast. The only real
exception will be far southern monterey and san bentio counties
where highs will still reach the 90s. Conditions on Tuesday will
be similar.

A ridge of high pressure will attempt to rebuild into our region
starting Wednesday which will help to increase temperatures a bit,
however values will stay well below the very high numbers we had
recently. Generally look for 60s to lower 70s at the coast with
mid 70s to near 90 inland.

Longer range guidance through july 9th favors dry conditions with
temperatures near to a bit above normal.

Aviation As of 5:12 pm pdt Sunday... The marine layer is
1800-2000 feet deep and likely to deepen tonight and Monday as
lower level cooling develops and persists. Onshore winds will
bring in stratus ceilings tonight with clearing back to the
coastline Monday.

Vicinity of ksfo... MVFR cig forecast this evening into Monday
morning with ifr 08z-12z time-frame Monday morning.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Ifr CIGS develop this evening. Clearing
returns 16z-17z Monday.

Marine As of 06:51 pm pdt Sunday... High pressure off the west
coast will maintain northerly winds over the coastal waters
through the coming week. Winds will be locally stronger along the
immediate coast. Seas will be small with a dominant southerly
swell.

Mtr watches warnings advisories
Tngt Sca... Sf bay until 9 pm
sca... Pigeon pt to pt pinos 0-10 nm until 9 pm
sca... Pt pinos to pt piedras blancas 0-10 nm
public forecast: rowe bell
aviation: canepa
marine: sims
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 3 mi42 min W 14 G 18 62°F 74°F1014.7 hPa (+0.4)
AAMC1 - 9414750 - Alameda, CA 16 mi42 min W 8 G 12 61°F 68°F1015.9 hPa (-0.0)
LNDC1 17 mi42 min WSW 9.9 G 14 62°F 1015.4 hPa (+0.0)
OBXC1 18 mi42 min 60°F 56°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi42 min W 14 G 17
PXOC1 - 9414311 - San Francisco (Pier 1), CA 19 mi42 min WSW 7 G 18 60°F 1014.2 hPa (+0.0)
PXSC1 19 mi42 min 60°F 55°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 19 mi42 min W 9.9 G 14 61°F 1015.3 hPa (+0.0)
FTPC1 - 9414290 - San Francisco, CA 21 mi42 min WSW 12 G 17 59°F 59°F1015.6 hPa (+0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 25 mi42 min SW 11 G 13 63°F 1015.1 hPa
46237 - San Francisco Bar, CA (142) 26 mi42 min 58°F3 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 26 mi50 min SW 9.9 60°F 1015 hPa (-0.0)
RCMC1 - 9414863 - Richmond, CA 27 mi42 min WSW 5.1 G 8.9 63°F 60°F1014.7 hPa (+0.3)
MZXC1 - 9415102 - Martinez-Amorco CA 34 mi42 min WSW 13 G 18 65°F 70°F1014.3 hPa (+0.4)57°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 35 mi42 min WNW 13 G 18 65°F 1014.2 hPa (+0.5)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi52 min NW 9.7 G 12 59°F 58°F3 ft1015.8 hPa (-0.4)
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 36 mi52 min NNW 1.9 G 3.9 60°F 59°F3 ft1015.7 hPa (-0.4)
PCOC1 - 9415144 - Port Chicago, CA 37 mi42 min WSW 15 G 19 66°F 71°F1013.7 hPa (+0.4)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 39 mi42 min WNW 16 G 20 70°F 1012.8 hPa (+0.5)
SFXC1 - San Francisco Bay Reserve, CA 46 mi57 min W 12 67°F 1013 hPa57°F

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Carlos Airport, CA1 mi1.9 hrsWNW 16 G 2110.00 miA Few Clouds64°F53°F68%1015.2 hPa
Palo Alto Airport, CA8 mi55 minNW 1510.00 miA Few Clouds66°F57°F73%1014.9 hPa
San Francisco, San Francisco International Airport, CA8 mi46 minW 1310.00 miMostly Cloudy61°F52°F72%1015.6 hPa
Oakland, Metro Oakland International Airport, CA10 mi49 minW 1410.00 miPartly Cloudy64°F55°F73%1015.6 hPa
Hayward, Hayward Air Terminal, CA10 mi48 minWNW 1010.00 miPartly Cloudy64°F52°F65%1016.4 hPa
Mountain View, Moffett Field, CA13 mi46 minNNW 1010.00 miFair65°F55°F73%1015.7 hPa
San Jose, San Jose International Airport, CA21 mi49 minNW 1210.00 miA Few Clouds66°F55°F70%1015.2 hPa

Wind History from SQL (wind in knots)
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Last 24hrW9NW8NW7NW8NW8NW7NW6NW7NW8NW7NW7W8NW7--N10N12N10
G16
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1 day agoNW6NW6N5NW4NW6NW5W4N4NW4NW4N4CalmN54--NE8N9N9N12N11W12W12N9NW7
2 days agoN7N7N5N5N3N5N4N4NW3N3NW3NW33N5N10NE9N11N8N10N10NW7N8NW9N7

Tide / Current Tables for Bay Slough, west end, San Francisco Bay, California
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Bay Slough
Click for Map
Sun -- 01:10 AM PDT     9.32 feet High Tide
Sun -- 05:49 AM PDT     Sunrise
Sun -- 07:42 AM PDT     Moonrise
Sun -- 08:36 AM PDT     -1.73 feet Low Tide
Sun -- 03:12 PM PDT     7.06 feet High Tide
Sun -- 08:34 PM PDT     Sunset
Sun -- 08:34 PM PDT     2.35 feet Low Tide
Sun -- 10:10 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.59.397.95.93.61.2-0.6-1.6-1.6-0.70.92.84.76.376.85.84.53.22.52.53.45

Tide / Current Tables for San Mateo Bridge, South San Francisco Bay, California Current
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San Mateo Bridge
Click for Map
Sun -- 02:16 AM PDT     -0.00 knots Slack
Sun -- 05:49 AM PDT     Sunrise
Sun -- 05:57 AM PDT     -2.44 knots Max Ebb
Sun -- 07:42 AM PDT     Moonrise
Sun -- 09:22 AM PDT     0.01 knots Slack
Sun -- 12:16 PM PDT     2.40 knots Max Flood
Sun -- 03:58 PM PDT     -0.01 knots Slack
Sun -- 06:36 PM PDT     -1.21 knots Max Ebb
Sun -- 08:34 PM PDT     Sunset
Sun -- 09:18 PM PDT     0.00 knots Slack
Sun -- 10:10 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.10.3-0.6-1.5-2.2-2.4-2.1-1.4-0.40.81.92.42.31.81-0-0.7-1.1-1.2-0.8-0.20.61.4

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for San Francisco/Monterey Bay Area, CA (23,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, CA
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weather_mapweather_map weather_map

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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.