Monday, June18, 2018 L-36.com


Marine Weather and Tides
Hayward, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:45AMSunset 8:34PM Monday June 18, 2018 2:10 PM PDT (21:10 UTC) Moonrise 10:18AMMoonset 11:52PM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 900 Am Pdt Mon Jun 18 2018
Today..SW winds 10 to 20 kt.
Tonight..SW winds 10 to 20 kt.
Tue..SW winds 10 to 20 kt.
Tue night..SW winds 10 to 20 kt.
Wed..SW winds 15 to 25 kt.
Thu..SW winds 10 to 20 kt.
Fri..W winds 5 to 15 kt.
PZZ500 900 Am Pdt Mon Jun 18 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light southerly winds will continue along the near shore waters through the morning becoming northwesterly across all waters this afternoon. Winds will remain generally light through mid-week before increasing during the later half of the week. Seas will also remain light with a mixed northwest and southerly swell.

7 Day Forecast for Marine Location Near Hayward, CA
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location: 37.62, -122.15     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 182047
afdmtr
area forecast discussion
national weather service san francisco bay area
147 pm pdt Mon jun 18 2018

Synopsis A warming trend is forecast to begin on Monday and
continue through much of the week as high pressure builds over
california.

Discussion As of 01:47 pm pdt Monday... Early morning low
clouds and patchy fog did erode back to the coast by mid morning
giving way to sunny skies this afternoon. There are a few high
clouds streaming overhead creating filtered sunshine at times, but
for the most part a nice day for the bay area. The exception is
along the immediate coastline north of the golden gate where
clouds are staying put. High pressure currently off the west coast
and is slowly building over the region. Building high pressure
and decent insolation today allowed for warmer temperatures. The
latest 24 hour trend has many locations running 2 to 4 degrees
warmer than Sunday afternoon.

The warming trend noticed today will continue Tuesday and
Wednesday as the ridge of high pressure builds over bay area.

Night and morning low clouds will linger as there isn't much in
the way of an offshore flow component at this time. If anything,
the marine layer will be compressed slightly given the building
500mb heights aloft. Highs will be in the 60s to low 70s along the
coast and 80s to near 100 inland. Overnight lows will be mild,
especially in the hills with a thermal belt in full effect.

The ridge of high pressure flattens on Thursday as a trough passes
to the north. Temperatures will moderate during this time period.

Of bigger news will be the flattened high pressure drifting
westward and rebuilding Friday and into the weekend. Latest
medium range models really ramp up 500mb heights and 850mb temps
Friday. Building heights and warming temps aloft will yield hot
weather away from the coast. Based on the latest model output and
pattern set up raised many interior locations this Friday and
Saturday to 5 to 15 degrees above normal. High temps across the
interior will be in the 90s to lower 100s. Once again lack of
strong offshore flow will keep cooler temperatures along the coast
and some of the bay shoreline. Will have to keep a close eye on
this the next few days as heat related impacts may be an issue
Friday Saturday.

Aviation As of 10:45 am pdt Sunday... For 18z tafs. Stratus is
clearing quickly to the coast at this hour. As winds turn
increasingly to the west to northwesterly this afternoon stratus
will advect inland once again this evening with ifr MVFR cigs
returning overnight. Will need to monitor both the marine layer
depth and timing of the winds shift this afternoon to pin point
the exact timing of the return of the stratus. Generally light
winds are expected through the day with a slight seabreeze this
afternoon as winds turn westerly.

Moderate confidence.

Vicinity of ksfo...VFR conditions will persist through late
tonight. CIGS anticipated to return after 06z tonight. Generally
light onshore flow increasing to around 15 kt this afternoon.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR conditions will persist through
late tonight. CIGS anticipated to return after 06z-08z tonight.

Generally light onshore flow increasing to around 10-12 kt this
afternoon.

Low CIGS have cleared away for now, but
may build back in over the next few hours. Any stratus
redevelopment is not expected to be long lasting.VFR conditions
through late tonight before low clouds return. Generally light
winds through the period.

Marine As of 10:39 am pdt Monday... Light southerly winds will
continue along the near shore waters through the morning becoming
northwesterly across all waters this afternoon. Winds will remain
generally light through mid-week before increasing during the
later half of the week. Seas will also remain light with a mixed
northwest and southerly swell.

Mtr watches warnings advisories
Tngt Sca... Pt pinos to pt piedras blancas 0-10 nm until 3 am
public forecast: mm
aviation: cw
marine: cw
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 8 mi41 min NNW 11 G 13 65°F 70°F1017.6 hPa
AAMC1 - 9414750 - Alameda, CA 13 mi41 min WNW 11 G 13 62°F 68°F1017.8 hPa
LNDC1 14 mi41 min W 7 G 12 64°F 1017.6 hPa
OBXC1 16 mi41 min 60°F 55°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 16 mi41 min W 12 G 14
OKXC1 - 9414776 - Oakland (Berth 34), CA 16 mi41 min WNW 14 G 15 59°F 1017.7 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 18 mi41 min W 14 G 20 60°F 1016.7 hPa
PXSC1 18 mi41 min 62°F 54°F
FTPC1 - 9414290 - San Francisco, CA 21 mi41 min W 8.9 G 18 58°F 60°F1018.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 23 mi41 min SSW 8 G 12 61°F 1017.8 hPa
RCMC1 - 9414863 - Richmond, CA 25 mi41 min S 5.1 G 7 63°F 62°F1017.3 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 25 mi42 min WSW 4.1 62°F 1018 hPa
46237 - San Francisco Bar, CA (142) 28 mi41 min 57°F4 ft
MZXC1 - 9415102 - Martinez-Amorco CA 29 mi41 min WNW 14 G 15 69°F 68°F1016.3 hPa56°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 31 mi41 min WSW 9.9 G 11 67°F 1016.5 hPa
PCOC1 - 9415144 - Port Chicago, CA 31 mi41 min W 15 G 17 70°F 67°F1016.1 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 32 mi41 min NW 11 G 14 72°F 1015.7 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 38 mi31 min W 5.8 G 7.8 55°F 54°F1019.1 hPa55°F
SFXC1 - San Francisco Bay Reserve, CA 41 mi86 min W 8.9 75°F 1016 hPa57°F
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 43 mi81 min WSW 5.8 G 5.8 55°F 54°F6 ft1018.4 hPa (+0.0)

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
Hayward, Hayward Air Terminal, CA3 mi17 minW 1410.00 miFair73°F55°F53%1017.9 hPa
Oakland, Metro Oakland International Airport, CA7 mi18 minWNW 1710.00 miMostly Cloudy68°F54°F61%1017.3 hPa
San Carlos Airport, CA8 mi24 minN 1010.00 miA Few Clouds72°F55°F57%1016.9 hPa
Palo Alto Airport, CA10 mi84 minNNW 1010.00 miA Few Clouds70°F57°F64%1017.3 hPa
San Francisco, San Francisco International Airport, CA11 mi15 minWNW 2010.00 miMostly Cloudy and Breezy68°F52°F57%1017.1 hPa
Mountain View, Moffett Field, CA14 mi15 minN 1210.00 miFair73°F57°F59%1017.1 hPa
Livermore, Livermore Municipal Airport, CA18 mi18 minWSW 810.00 miFair81°F59°F47%1015.6 hPa
Half Moon Bay Airport, CA20 mi16 minW 78.00 mi59°F53°F82%1019 hPa
San Jose, San Jose International Airport, CA21 mi18 minWNW 11 G 1910.00 miMostly Cloudy77°F55°F47%1016.2 hPa

Wind History from HWD (wind in knots)
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Last 24hrW10
G16
W10W11W13NW11NW11NW11NW11NW6NW6W5SW5CalmN3NW4NW6NW6N4Calm4W7W7NW8W14
1 day agoW13W15
G21
W17W19
G26
W14
G21
W12W13W9W9W10SW10SW8S6S7S7S7SE8S8S8S9S63W11W8
2 days agoW14W14
G23
W15W15W12W9SW8W5W7W7SW3W5S6SE6S6SE5S9SE10SE9SW9SW84W6W11
G17

Tide / Current Tables for San Mateo Bridge (east end), San Francisco Bay, California
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San Mateo Bridge (east end)
Click for Map
Mon -- 12:12 AM PDT     Moonset
Mon -- 04:05 AM PDT     7.52 feet High Tide
Mon -- 05:47 AM PDT     Sunrise
Mon -- 11:18 AM PDT     Moonrise
Mon -- 11:18 AM PDT     -0.88 feet Low Tide
Mon -- 06:11 PM PDT     7.18 feet High Tide
Mon -- 08:32 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.14.35.76.97.57.26.24.72.81-0.3-0.9-0.70.31.83.55.26.67.26.964.73.52.7

Tide / Current Tables for Mulford Gardens Channel #2 SSW, South San Francisco Bay, California Current
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Mulford Gardens Channel #2 SSW
Click for Map
Mon -- 12:13 AM PDT     Moonset
Mon -- 01:12 AM PDT     0.76 knots Max Flood
Mon -- 03:56 AM PDT     -0.00 knots Slack
Mon -- 05:47 AM PDT     Sunrise
Mon -- 07:22 AM PDT     -0.94 knots Max Ebb
Mon -- 10:50 AM PDT     0.00 knots Slack
Mon -- 11:18 AM PDT     Moonrise
Mon -- 02:17 PM PDT     1.15 knots Max Flood
Mon -- 05:41 PM PDT     -0.00 knots Slack
Mon -- 08:12 PM PDT     -0.53 knots Max Ebb
Mon -- 08:33 PM PDT     Sunset
Mon -- 11:22 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.80.70.4-0-0.4-0.7-0.9-0.9-0.7-0.30.10.611.11.10.80.4-0.1-0.4-0.5-0.5-0.3-0.1

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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Wind Forecast for San Francisco/Monterey Bay Area, CA (17,4,5,8)
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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.