Friday, August18, 2017 L-36.com


Marine Weather and Tides
Fremont, 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 6:26AMSunset 7:56PM Friday August 18, 2017 8:45 PM PDT (03:45 UTC) Moonrise 2:04AMMoonset 4:41PM Illumination 10% Phase: Waning Crescent; Moon at 26 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 PZZ500 832 Pm Pdt Fri Aug 18 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... As high pressure builds into the eastern pacific winds will increase especially for the northern outer waters. Locally steep wind waves will also accompany increasing winds.

7 Day Forecast for Marine Location Near Fremont, CA
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location: 37.45, -121.96     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 182342
afdmtr
area forecast discussion
national weather service san francisco bay area
442 pm pdt Fri aug 18 2017

Synopsis Look for one more day of minor warming this afternoon
as a ridge of high pressure continues to build into our region.

Minor cooling can be expected over the weekend into next week as
an upper level low and shortwave trough move into our region.

Overnight clouds can be expected especially along the coast.

Discussion As of 1:47 pm pdt Friday... This morning's low
clouds were quick to clear for most locations as we transition to
a mostly clear afternoon. A few areas along the monterey bay
shoreline and coastal areas from san francisco northward still
have some lingering clouds. Synoptically-speaking, there is an
upper level ridge centered near 38n 135w that has gradually
strengthened over the past 24 hours. This strengthening is
expected to correspond with several degrees of warming at the
surface for inland areas. When all is set and done this Friday
afternoon, expect highs to reach the 60s and 70s along the coast
and 80s and 90s for the interior. This equates to temperatures
near middle august climatological normals along the coast, and
about 2 to 7 degrees above normal for the interior. Can't rule out
the chance that a few areas near pinnacles national park surpass
the century mark.

Over the weekend an upper level low will develop just off the
coast of point conception. This will allow for heights and
thickness values over central and northern california to
decrease. We'll see afternoon temperatures across the interior
trend downward several degrees per day through the weekend.

The main thought on many minds as we head into next week is the
cloud cover for Monday morning's solar eclipse. If conditions
permit, the partial solar eclipse can be viewed throughout
california. Right now, models are all in good agreement that the
upper level low will remain parked near point conception in
southern california. For us along the central coast and north to
the san francisco bay area, this yields a few outcomes. For one,
the low can help mix out the marine layer, resulting in mostly
clear conditions. On the other hand, the upper low could help to
enhance the marine layer depth. We'll know a little bit more over
the weekend and will continue to monitor the marine layer's
response to the trough. Climatologically, the best locations in
the bay area for clear skies on a mid late august morning would be
interior areas of the east bay away from the coast, as well as the
higher elevations in the santa cruz mountains, north bay
mountains, and diablo range. The eclipse of the Sun will begin
shortly after 9:00 am pdt for the bay area with peak obscuration
happening around 10:15 am pdt. Peak obscuration of the Sun will
range from 71 percent in monterey and up to 78 percent in santa
rosa.

Aviation As of 4:45 pm pdt Friday... Clouds are hugging most of the
coastline and with a nearly 3 mb west-to-east surface gradient
component, only a matter of time before it moves back to most
terminals. Guidance is running with a range of solutions however
generally went with middle of the road start times that would
still be earlier than this morning. CIGS forecast to be in the ifr
to low-end MVFR categories. Moderate confidence.

Vicinity of ksfo...VFR with winds up to 20 kt currently. Look for
cigs in the ifr MVFR category to return around 09z although
possibly earlier than that. Winds will diminish after 04z.

Moderate confidence.

Sfo bridge approach... Similar to ksfo although sct deck could
impact approach as early as 07z.

Monterey bay terminals... CIGS down to 005 forecast to return
around 0#z at kmry and later at ksns. Will stay ifr all night with
a return toVFR around 17-18z. Moderate confidence.

Marine As of 01:30 pm pdt Friday... Expect increasing
northwesterly winds to continue through the weekend as high
pressure builds over the eastern pacific. Locally steep wind waves
will also accompany the increasing winds.

Mtr watches warnings advisories
Tngt Sca... Pt arena to pigeon pt 10-60 nm
public forecast: rowe
aviation: bell
marine: as
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 14 mi45 min NNW 7 G 8.9 66°F 73°F1013.3 hPa (+0.4)
LNDC1 29 mi45 min WNW 6 G 8.9 62°F 1014.3 hPa (-0.0)
AAMC1 - 9414750 - Alameda, CA 29 mi45 min WNW 8 G 12 62°F 69°F1014.8 hPa (-0.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 31 mi45 min W 12 G 15
OKXC1 - 9414776 - Oakland (Berth 34), CA 32 mi45 min W 8 G 11 62°F 1014.2 hPa (-0.0)
OBXC1 32 mi45 min 62°F 59°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 33 mi45 min WSW 7 G 12 61°F 1013.1 hPa (+0.0)
PXSC1 34 mi45 min 62°F 59°F
FTPC1 - 9414290 - San Francisco, CA 36 mi45 min W 2.9 G 8.9 60°F 61°F1014.5 hPa (+0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 38 mi45 min SW 9.9 G 14 62°F 1014.1 hPa (-0.0)
RCMC1 - 9414863 - Richmond, CA 40 mi45 min S 2.9 G 5.1 62°F 65°F1013.7 hPa (-0.0)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 40 mi58 min WSW 15 60°F 1014 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 41 mi45 min WSW 14 G 17 67°F 71°F1013 hPa (+0.6)58°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 41 mi45 min WNW 12 G 15 74°F 1011.5 hPa (+0.4)
PCOC1 - 9415144 - Port Chicago, CA 42 mi45 min WSW 13 G 17 69°F 71°F1012.3 hPa (+0.5)
46237 - San Francisco Bar, CA (142) 43 mi45 min 61°F4 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 45 mi45 min SW 13 G 17 63°F 1013 hPa (+0.4)
ELXC1 - Elkhorn Slough Reserve, CA 45 mi60 min WNW 4.1 60°F 1015 hPa57°F
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 49 mi55 min WSW 3.9 G 5.8 60°F 62°F6 ft1014.1 hPa (-0.5)
46092 - MBM1 49 mi103 min WSW 5.8 60°F 59°F1014.8 hPa (-0.8)

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mountain View, Moffett Field, CA5 mi49 minNNW 510.00 miFair67°F61°F81%1014.3 hPa
San Jose, San Jose International Airport, CA6 mi52 minWNW 610.00 miA Few Clouds69°F61°F76%1013.6 hPa
Palo Alto Airport, CA9 mi58 minNNW 1110.00 miClear66°F60°F83%1013.9 hPa
San Jose / Reid / Hillv, CA11 mi58 minN 010.00 miClear72°F60°F69%1014.2 hPa
San Carlos Airport, CA16 mi58 minNW 610.00 miClear66°F57°F73%1013.9 hPa
Hayward, Hayward Air Terminal, CA17 mi51 minNW 108.00 miFair63°F55°F76%1014.8 hPa
Livermore, Livermore Municipal Airport, CA19 mi52 minWNW 910.00 miFair73°F57°F57%1012.3 hPa
Oakland, Metro Oakland International Airport, CA22 mi52 minNW 129.00 miA Few Clouds62°F59°F90%1014 hPa
San Francisco, San Francisco International Airport, CA24 mi49 minWNW 1410.00 miA Few Clouds63°F55°F78%1013.5 hPa

Wind History from NUQ (wind in knots)
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Last 24hrN5N7N6N6N8N6NE4NE5N5CalmN3N3CalmCalm3N6N8NW8NW11NW11NW10NW10NW7N5
1 day agoN9N8NE6NE3CalmCalmCalmCalmSE3SE4SE4E3CalmNW3N5N7N9N10N10N10N11NW9NW10NW7
2 days agoN8N8NE9NE6CalmE3CalmCalmSE4SE3CalmSE7SE5SE644N9N8N10N13N10N11N11NW8

Tide / Current Tables for Coyote Creek, Tributary #1, San Francisco Bay, California
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Coyote Creek
Click for Map
Fri -- 03:04 AM PDT     Moonrise
Fri -- 06:07 AM PDT     -0.63 feet Low Tide
Fri -- 06:26 AM PDT     Sunrise
Fri -- 11:52 AM PDT     7.44 feet High Tide
Fri -- 05:41 PM PDT     Moonset
Fri -- 05:54 PM PDT     2.20 feet Low Tide
Fri -- 07:55 PM PDT     Sunset
Fri -- 10:46 PM PDT     9.28 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.664.12.30.7-0.3-0.6-0.21.33.25.36.97.4764.63.42.52.234.97.18.89.3

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
Fri -- 02:37 AM PDT     -1.40 knots Max Ebb
Fri -- 03:04 AM PDT     Moonrise
Fri -- 05:31 AM PDT     0.00 knots Slack
Fri -- 06:27 AM PDT     Sunrise
Fri -- 08:23 AM PDT     1.46 knots Max Flood
Fri -- 11:36 AM PDT     -0.00 knots Slack
Fri -- 03:20 PM PDT     -0.68 knots Max Ebb
Fri -- 05:25 PM PDT     0.01 knots Slack
Fri -- 05:41 PM PDT     Moonset
Fri -- 07:56 PM PDT     Sunset
Fri -- 08:01 PM PDT     1.16 knots Max Flood
Fri -- 10:54 PM PDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-1.2-1.4-1.4-1-0.40.41.11.41.41.10.5-0.1-0.4-0.6-0.7-0.6-0.30.40.91.210.6-0

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.