Tuesday, August22, 2017 L-36.com


Marine Weather and Tides
Menlo Park, 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 6:30AMSunset 7:51PM Tuesday August 22, 2017 5:47 PM PDT (00:47 UTC) Moonrise 6:27AMMoonset 7:42PM Illumination 1% Phase: New Moon; Moon at 1 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 San Francisco Bay North Of The Bay Bridge- 234 Pm Pdt Tue Aug 22 2017
.small craft advisory in effect until 9 pm pdt this evening...
.small craft advisory in effect from Wednesday morning through Wednesday evening...
Tonight..SW winds 10 to 20 kt.
Wed..SW winds 10 to 20 kt.
Wed night..SW winds 10 to 20 kt.
Thu..SW winds 10 to 20 kt.
Thu night..SW winds 10 to 20 kt.
Fri..SW winds 15 to 25 kt.
Sat..SW winds 10 kt.
Sun..SW winds 10 kt.
PZZ500 234 Pm Pdt Tue Aug 22 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light to moderate winds through midweek, with locally stronger winds through coastal gaps during the afternoons. Building high pressure from the west will bring stronger northerly winds and steep fresh swell. No significant long period swell through the upcoming week.

7 Day Forecast for Marine Location Near Menlo Park, CA
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location: 37.52, -122.16     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 230027
afdmtr
area forecast discussion
national weather service san francisco bay area
527 pm pdt Tue aug 22 2017

Synopsis Dry weather will prevail today with temperatures
near to slightly below normal for the middle of august. Low
clouds and fog will persist in the overnight and early morning
near the coast and in the valleys the next several days. An inland
warming trend is likely late in the week and into the upcoming
weekend due to strengthening high pressure.

Discussion As of 1:51 pm pdt Tuesday... This morning's overcast
conditions over most of the san francisco bay area have
transitioned to a mostly clear afternoon for much of the area. Low
clouds are still lingering from point reyes northward as well as
the monterey peninsula. When all is set and done this afternoon,
high temperatures should generally top out in the 60s and low 70s
along the coast and upper 70s to perhaps the low 90s for interior
locations. Expect the warmest locations to be in interior san
benito and monterey counties with mid 90s likely.

Synoptically an upper level low remains centered around 150 miles
offshore from big sur around 35n 124w. Models advertise this low
to push onshore by midweek as a broader longwave trough approaches
coastal british columbia. Not expecting much day-to-day change in
temperatures for any particular location during this time with
high temperatures running near seasonal normals. This changes for
Friday as models show a ridge beginning to build over the four
corners and expanding west over the weekend. Interior areas will
return back to the 90s and 100s as a result. Long range guidance
suggests the ridge will remain parked over the southwest with
above normal temperatures likely continuing into next week.

Aviation As of 4:50 pm pdt Tuesday... For 00z tafs.Clear skies
prevail over most area terminals this afternoon. Low clouds
anticipated to push in through the monterey bay early affecting
kmry ksns. Otherwise a compressed marine layer will result in a
later return of the stratus across other terminals as well as an
early clearing Wednesday morning.

Vicinity of ksfo...VFR conditions expected through late tonight.

Borderline ifr-MVFR CIGS expected to return after midnight
tonight. Low clouds will scatter out around 16z-17z Wednesday
morning. Moderate west winds will prevail through this afternoon
with sustained winds of 15-20 kt with occasional gusts to 25 kt
possible. Winds will ease after 04z tonight.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... MVFR CIGS expected to lower to ifr after
03z this evening. Low clouds will clear to the coast around 17z
Wednesday morning. Light to moderate west winds will prevail
through this afternoon becoming light after 03z tonight.

Marine As of 2:34 pm pdt Tuesday... Light to moderate winds
through midweek, with locally stronger winds through coastal gaps
during the afternoons. Building high pressure from the west will
bring stronger northerly winds and steep fresh swell. No
significant long period swell through the upcoming week.

Mtr watches warnings advisories
Tngt Sca... Sf bay until 9 pm
public forecast: rowe
aviation: cw
marine: drp
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 3 mi47 min NNW 13 G 14 71°F 73°F1014.4 hPa (-1.9)
AAMC1 - 9414750 - Alameda, CA 19 mi47 min W 7 G 11 67°F 69°F1016.1 hPa (-1.4)
LNDC1 20 mi47 min WSW 7 G 8.9 67°F 1015.6 hPa (-1.4)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 21 mi47 min W 2.9 G 5.1
OBXC1 22 mi47 min 65°F 59°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 22 mi47 min W 9.9 G 12 65°F 1015.6 hPa (-1.5)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 23 mi47 min W 12 G 19 66°F 1014.3 hPa (-1.7)
PXSC1 23 mi47 min 67°F 58°F
FTPC1 - 9414290 - San Francisco, CA 26 mi47 min W 13 G 21 62°F 62°F1016.1 hPa (-1.5)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 29 mi47 min SSW 7 G 9.9 67°F 1015.6 hPa (-1.7)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 30 mi60 min SW 7 68°F 1015 hPa
46237 - San Francisco Bar, CA (142) 31 mi47 min 60°F3 ft
RCMC1 - 9414863 - Richmond, CA 31 mi47 min WNW 1.9 G 5.1 69°F 65°F1015 hPa (-1.7)
MZXC1 - 9415102 - Martinez-Amorco CA 36 mi47 min WNW 14 G 16 77°F 69°F1014.1 hPa (-2.1)59°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 37 mi47 min W 8.9 G 11 73°F 1014.2 hPa (-1.9)
PCOC1 - 9415144 - Port Chicago, CA 38 mi47 min W 16 G 18 77°F 69°F1013.7 hPa (-2.0)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 39 mi47 min NW 12 G 16 78°F 1013.1 hPa (-2.0)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 39 mi57 min WNW 9.7 G 14 60°F 61°F2 ft1016.8 hPa (-1.3)
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 40 mi57 min WNW 9.7 G 12 61°F 62°F3 ft1016.4 hPa (-1.2)
SFXC1 - San Francisco Bay Reserve, CA 48 mi62 min WNW 13 83°F 1013 hPa57°F

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palo Alto Airport, CA3 mi60 minNNW 1610.00 miClear75°F60°F61%1014.9 hPa
San Carlos Airport, CA5 mi53 minW 87.00 miA Few Clouds with Haze79°F57°F48%1015.2 hPa
Mountain View, Moffett Field, CA9 mi51 minN 1310.00 miFair73°F61°F66%1015.4 hPa
Hayward, Hayward Air Terminal, CA10 mi53 minWNW 1410.00 miFair73°F55°F53%1016 hPa
San Francisco, San Francisco International Airport, CA13 mi51 minW 2010.00 miA Few Clouds and Breezy69°F55°F63%1015.2 hPa
Oakland, Metro Oakland International Airport, CA13 mi54 minW 1410.00 miA Few Clouds70°F59°F68%1015.4 hPa
San Jose, San Jose International Airport, CA16 mi54 minW 1110.00 miA Few Clouds80°F59°F49%1014.6 hPa
Half Moon Bay Airport, CA18 mi52 minNW 109.00 miFair64°F57°F78%1015.6 hPa
San Jose / Reid / Hillv, CA22 mi60 minNNW 610.00 miClear82°F55°F40%1015.2 hPa
Livermore, Livermore Municipal Airport, CA22 mi54 minWNW 1110.00 miFair87°F57°F36%1013.4 hPa

Wind History from PAO (wind in knots)
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Last 24hrN16N14NW10NW6------------------CalmCalmCalm5--N9N10N10N11N12N16
1 day agoN12N11NW10N8------------------455--5NE6--N11N12N17--
2 days agoN17N12NW10N12------------------44W55N6N7N10--NW15N15N15

Tide / Current Tables for Redwood Creek, C.M. No.8, San Francisco Bay, California
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Redwood Creek
Click for Map
Tue -- 01:04 AM PDT     8.84 feet High Tide
Tue -- 06:30 AM PDT     Sunrise
Tue -- 07:27 AM PDT     Moonrise
Tue -- 07:56 AM PDT     -0.88 feet Low Tide
Tue -- 02:20 PM PDT     8.11 feet High Tide
Tue -- 07:51 PM PDT     Sunset
Tue -- 08:07 PM PDT     1.56 feet Low Tide
Tue -- 08:41 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.38.88.47.15.23.11.1-0.3-0.9-0.21.43.45.57.287.96.95.33.62.21.623.45.2

Tide / Current Tables for Dumbarton Bridge, San Francisco Bay, California Current
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Dumbarton Bridge
Click for Map
Tue -- 02:22 AM PDT     -0.00 knots Slack
Tue -- 05:17 AM PDT     -1.86 knots Max Ebb
Tue -- 06:30 AM PDT     Sunrise
Tue -- 07:26 AM PDT     Moonrise
Tue -- 08:40 AM PDT     0.00 knots Slack
Tue -- 11:51 AM PDT     2.06 knots Max Flood
Tue -- 03:26 PM PDT     -0.00 knots Slack
Tue -- 05:49 PM PDT     -1.21 knots Max Ebb
Tue -- 07:51 PM PDT     Sunset
Tue -- 08:41 PM PDT     Moonset
Tue -- 08:44 PM PDT     0.00 knots Slack
Tue -- 11:50 PM PDT     1.81 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.20.4-0.6-1.5-1.8-1.8-1.4-0.60.31.31.92.11.81.30.4-0.5-1.1-1.2-1-0.50.21.11.6

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 (20,4,5,8)
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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.