Sunday, August25, 2019 L-36.com


Marine Weather and Tides
Copperopolis, 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 7:44PM Sunday August 25, 2019 8:34 AM PDT (15:34 UTC) Moonrise 12:08AMMoonset 3:04PM Illumination 24% Phase: Waning Crescent; Moon at 25 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- 826 Am Pdt Sun Aug 25 2019
Today..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt this afternoon.
Tonight..SW winds 10 to 15 kt.
Mon..SW winds 10 to 15 kt with gusts up to 25 kt.
Mon night..SW winds 10 to 15 kt.
Tue..SW winds 10 to 15 kt with gusts up to 25 kt.
Tue night..SW winds 10 to 15 kt.
Wed..SW winds 15 to 20 kt.
Thu..SW winds 15 to 20 kt.
PZZ500 826 Am Pdt Sun Aug 25 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Weakening high pressure over the eastern pacific will keep light winds over the coastal waters through early to mid next week. SEa breezes will develop in the afternoons and evenings over the san francisco bay to the delta. Southerly swell will increase to 2 to 3 feet today and persist through early next week as a tropical system west of the baja peninsula progresses northward. Additionally, light to moderate northwest swell will continue through the period.


7 Day Forecast for Marine Location Near Copperopolis, CA
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location: 37.94, -120.54     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 251030
afdsto
area forecast discussion
national weather service sacramento ca
330 am pdt Sun aug 25 2019

Synopsis
Above normal temperatures through midweek, peaking Tuesday, then
returning to near to slightly above normal by the weekend. Dry
weather continues.

Discussion
High pressure over norcal will continue dry weather with above
normal temperatures. Marine layer has shrunk to around 1000 feet
and is hindering cooling impact of delta breeze into the central
valley. As a result, morning temperatures are running about 2 to 5
degrees warmer than 24 hours ago. Afternoon highs expected to be
near to slightly above what they were Saturday with triple digit
heat again in the northern sacramento valley. Strong subsidence
and dry AMS will hinder mountain deep moist convection today.

Heights and thicknesses slowly trend up into early next week as
desert SW upper high builds towards the northwest. 850 mb temps
top out Tuesday, climbing into the mid to upper 20s deg c in the
afternoon. Bought dry adiabatically to the surface results in max
temperatures Tuesday around the century mark for much of the
central valley. Hottest readings expected in the northern sac
valley with around 107 forecast at redding. Overnight lows
forecast to cool into the 60s for most valley locations providing
some relief. Exception will be portions of the northern and
central sacramento valley and thermal belts within the foothills
where lows will be in the 70s.

Upper ridge axis shifts into the intermountain west Wednesday as
a pair of mesoscale upper troughs move into the cwa. This will
result in some synoptic cooling midweek with increased onshore
flow. Highs temps lower about 2 to 4 degrees Wednesday and again
Thursday, returning to slightly above normal by that time.

Pch

Extended discussion (Thursday through Sunday)
Ensemble models show upper ridge over the western u.S. With
troughing digging in off the coast through the extended period.

Southwest flow aloft will keep monsoon moisture south and east of
the forecast area while ridging keeps any pacific moisture north
of the region. Therefore, extended period is expected to remain
dry through next weekend. Development of upper trough off the
coast will bring continued onshore flow and slightly cooler
temperatures Thursday through Sunday although daytime highs are
expected to remain a few degrees above normal. May see breezy
winds at times over the sierra and through the delta but otherwise
winds are expected to remain relatively light under the ridge.

Aviation
Vfr conditions next 24 hours. Sustained surface winds generally
below 15 knots. Local gusts 15-25 kts in the delta.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCOC1 - 9415144 - Port Chicago, CA 80 mi46 min W 15 G 18
SFXC1 - San Francisco Bay Reserve, CA 81 mi109 min W 7 63°F 1014 hPa57°F
RTYC1 - 9414523 - Redwood City, CA 94 mi46 min NNW 5.1 G 5.1 62°F 75°F1016.7 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
COLUMBIA, CA9 mi39 minN 010.00 miFair70°F57°F64%1017.6 hPa

Link to 5 minute data for KO22

Wind History from O22 (wind in knots)
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Last 24hrCalmCalmCalm546566764CalmCalm----Calm----CalmCalmCalmCalmCalm
1 day agoCalmCalm446Calm55SW7
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------Calm--CalmCalmCalm----CalmCalm
2 days ago--CalmCalmCalmCalm5
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76664------CalmCalmCalm--CalmCalmCalm----

Tide / Current Tables for Holt, Whiskey Slough, San Joaquin River, California
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Holt
Click for Map
Sun -- 01:11 AM PDT     Moonrise
Sun -- 01:12 AM PDT     4.03 feet High Tide
Sun -- 06:29 AM PDT     Sunrise
Sun -- 09:58 AM PDT     0.37 feet Low Tide
Sun -- 03:56 PM PDT     2.82 feet High Tide
Sun -- 04:07 PM PDT     Moonset
Sun -- 07:45 PM PDT     Sunset
Sun -- 08:38 PM PDT     1.47 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.743.93.63.12.41.71.20.80.50.40.611.72.22.72.82.62.21.81.51.51.82.4

Tide / Current Tables for Brandt Bridge, San Joaquin River, California Current
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Brandt Bridge
Click for Map
Sun -- 12:53 AM PDT     0.65 knots Max Flood
Sun -- 01:11 AM PDT     Moonrise
Sun -- 03:30 AM PDT     -0.00 knots Slack
Sun -- 06:29 AM PDT     Sunrise
Sun -- 07:26 AM PDT     -1.09 knots Max Ebb
Sun -- 12:24 PM PDT     0.00 knots Slack
Sun -- 03:38 PM PDT     0.45 knots Max Flood
Sun -- 04:07 PM PDT     Moonset
Sun -- 05:59 PM PDT     -0.00 knots Slack
Sun -- 07:44 PM PDT     Sunset
Sun -- 08:37 PM PDT     -0.37 knots Max Ebb
Sun -- 11:09 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.60.50.2-0.2-0.6-0.9-1.1-1.1-1-0.8-0.5-0.10.20.30.40.40.3-0-0.2-0.3-0.4-0.3-0

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 (11,2,3,4)
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Ground Weather Radar Station Sacramento, 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.