Friday, August23, 2019 L-36.com


Marine Weather and Tides
Discovery Bay, CA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:26AMSunset 7:49PM Friday August 23, 2019 3:58 AM PDT (10:58 UTC) Moonrise 11:28PMMoonset 1:03PM Illumination 46% 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- 249 Am Pdt Fri Aug 23 2019
.small craft advisory in effect from 9 am pdt this morning through this evening...
Today..SW winds 10 to 15 kt, increasing to 15 to 25 kt with gusts up to 30 kt this afternoon.
Tonight..SW winds 15 to 20 kt with gusts up to 25 kt.
Sat..SW winds 10 to 15 kt with gusts up to 25 kt.
Sat night..SW winds 10 to 15 kt.
Sun..SW winds 10 to 15 kt with gusts up to 25 kt.
Sun night..SW winds 10 to 15 kt.
Mon..SW winds 15 to 20 kt with gusts up to 25 kt.
Tue..SW winds 15 to 20 kt with gusts up to 25 kt.
PZZ500 249 Am Pdt Fri Aug 23 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will decrease across the area today but remain breezy over the northern outer waters. Steep northwesterly swell at 8 to 10 seconds will decrease today through the weekend with period becoming 7 to 8 seconds over the weekend. A coastally trapped southerly wind reversal will lead to light southwesterly winds over the waters this weekend. A moderate southerly swell will arrive on Sunday through early next week with light northwesterly swell continuing through the period.


7 Day Forecast for Marine Location Near Discovery Bay, CA
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location: 37.89, -121.49     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 231040
afdsto
area forecast discussion
national weather service sacramento ca
340 am pdt Fri aug 23 2019

Synopsis
Above average temperatures are expected into next week. Dry
weather pattern continues.

Discussion
Well above normal temperatures are expected through the forecast
period as strong high pressure strengthens over norcal. In
addition, the ridge will keep interior norcal under dry
conditions. Valley locations should see temperatures in the upper
90s to around 106, while highs in the low 70s to mid 80s are
expected over the mountains through the forecast period. Warmest
readings are anticipated over the N sac valley, where triple digit
highs will be possible each day.

The aforementioned highs could result in heat-related illnesses
among sensitive groups. Therefore, those that are sensitive to
heat should hydrate adequately, avoid long exposures in the
afternoon sun, and dress appropriately while using sunscreen.

Overnight lows could provide some relief from the hot daytime
temperatures, with valley morning readings mainly in the 60s
through the weekend.

Extended discussion (Tuesday through Friday)
Upper ridging from the desert SW will keep triple digit heat over
the northern half of the sacramento valley Tuesday. Upper 90s
expected elsewhere in the central valley. Ridge axis begins to
shift east Wednesday as upper low off the ca coast progresses.

Wave weakens as it lifts across the ca or border Thursday so dry
weather expected. Main impact will be cooling midweek with highs
forecast in the 90s throughout the central valley Thursday and
Friday.

Aviation
Vfr conds ovr intr norcal nxt 24 hrs. Sfc wnds genly blo 12 kts
exc LCL swly sfc wnd gsts up to 25 kts poss in delta and ovr hyr
trrn this aftn into eve.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 23 mi65 min NW 9.9 G 13 70°F 1004.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 31 mi65 min WSW 11 G 13 65°F 73°F1005.8 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 35 mi65 min WNW 11 G 13 64°F 72°F1006.1 hPa
UPBC1 35 mi65 min WNW 9.9 G 14
SFXC1 - San Francisco Bay Reserve, CA 36 mi74 min W 7 66°F 1005 hPa59°F
LNDC1 42 mi59 min SW 4.1 G 5.1 63°F 1006.8 hPa (-0.6)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 43 mi65 min WSW 5.1 G 8 64°F 1006 hPa
AAMC1 - 9414750 - Alameda, CA 44 mi65 min W 4.1 G 6 63°F 72°F1007.4 hPa
OBXC1 45 mi59 min 63°F 61°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 45 mi59 min SW 4.1 G 6 62°F 1006.8 hPa (-0.6)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 45 mi65 min SW 8 G 8.9
PPXC1 - 9414847 - Richmond (Point Potrero), CA 46 mi71 min SW 12 G 14 62°F 1006.8 hPa
RTYC1 - 9414523 - Redwood City, CA 47 mi65 min W 2.9 G 2.9 63°F 75°F1007.4 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 48 mi65 min W 5.1 G 6 61°F 1005.8 hPa
PXSC1 48 mi59 min 62°F 58°F
RCMC1 - 9414863 - Richmond, CA 49 mi59 min 68°F

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA13 mi4.1 hrsWNW 510.00 miFair77°F55°F48%1005.1 hPa
Livermore, Livermore Municipal Airport, CA22 mi2.1 hrsN 010.00 miFair65°F54°F68%1006 hPa

Link to 5 minute data for KSCK

Wind History from SCK (wind in knots)
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Last 24hrW5W7W7NW4W4NW9W9NW8N7N10NW7N9W10NW8NW7NW10W10W11W9W7W5E5E3Calm
1 day agoCalmCalmCalmN3N3N3NW5W8NW8N8NW8NW9NW7NW12NW10W15W9W8W11W12W8NW7NW5NW5
2 days agoW11NW9NW6NW5NW11N45W73W7NW9W10
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NW10W15W14W14W12W9W6NW6CalmCalmCalm

Tide / Current Tables for Borden Highway Bridge, Middle River, San Joaquin River, California
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Borden Highway Bridge
Click for Map
Fri -- 06:28 AM PDT     Sunrise
Fri -- 07:46 AM PDT     0.61 feet Low Tide
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 01:58 PM PDT     2.08 feet High Tide
Fri -- 02:02 PM PDT     Moonset
Fri -- 06:42 PM PDT     0.94 feet Low Tide
Fri -- 07:48 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.132.72.21.71.20.80.70.60.81.11.51.822.121.71.310.91.11.52.12.7

Tide / Current Tables for Vulcan Island .5 mi E, San Joaquin River, California Current
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Vulcan Island .5 mi E
Click for Map
Fri -- 12:35 AM PDT     -0.00 knots Slack
Fri -- 03:38 AM PDT     -0.48 knots Max Ebb
Fri -- 06:27 AM PDT     Sunrise
Fri -- 07:58 AM PDT     Last Quarter
Fri -- 08:08 AM PDT     0.00 knots Slack
Fri -- 10:43 AM PDT     0.36 knots Max Flood
Fri -- 02:02 PM PDT     Moonset
Fri -- 02:06 PM PDT     -0.00 knots Slack
Fri -- 04:23 PM PDT     -0.25 knots Max Ebb
Fri -- 07:10 PM PDT     0.00 knots Slack
Fri -- 07:48 PM PDT     Sunset
Fri -- 10:05 PM PDT     0.66 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.2-0.1-0.3-0.5-0.5-0.4-0.3-0.2-00.20.30.40.30.20-0.1-0.2-0.2-0.2-00.20.50.70.6

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (6,6,7,8)
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Ground Weather Radar Station Sacramento, 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.