Thursday, July2, 2020
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Marine Weather and Tides
Peters, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:45AMSunset 8:32PM Thursday July 2, 2020 1:39 AM PDT (08:39 UTC) Moonrise 5:21PMMoonset 2:32AM Illumination 89% Phase: Waxing Gibbous; Moon at 12 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- 900 Pm Pdt Wed Jul 1 2020
.small craft advisory in effect until 11 pm pdt this evening...
Tonight..SW winds 10 to 20 kt with gusts up to 30 kt.
Thu..SW winds 10 to 20 kt with gusts up to 25 kt.
Thu night..SW winds 5 to 15 kt.
Fri..SW winds 10 to 20 kt with gusts up to 25 kt.
Fri night..SW winds 5 to 15 kt.
Independence day..SW winds 5 to 15 kt.
Sat night..W winds 5 to 10 kt.
Sun..W winds 10 to 20 kt with gusts up to 25 kt.
Mon..W winds 10 to 20 kt with gusts up to 25 kt.
PZZ500 900 Pm Pdt Wed Jul 1 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure off the northern california coast will weaken on Thursday as a low pressure system develops off the pacific northwest. Strong northwest winds will continue in the northern outer waters through Thursday before decreasing. Light to moderate winds are expected elsewhere. A long-period southerly swell train will arrive late Thursday or Friday. This will cause occasional breaking waves over nearshore shoals and strong currents along the coast, especially near points and headlands.


7 Day Forecast for Marine Location Near Peters, CA
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location: 38, -121     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 012129 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 229 PM PDT Wed Jul 1 2020

SYNOPSIS. Temperatures around seasonal averages this week, with a quiet, dry pattern continuing.

DISCUSSION. Mid-level water vapor imagery across the western U.S. shows a positively-tilted trough over the Pacific Northwest while ridging remains prominent well off the coast. The resultant northwesterly flow has kept tranquil weather in place with sunny skies over most locations. Some orographically induced fair weather cumulus fields are noted in the 0.64 micron visible satellite channel. Otherwise, much like yesterday, early afternoon temperatures across the Valley and Delta have reached the upper 80s to low 90s. Given additional diurnal heating, another 3 to 5 degrees can be tacked on to these temperatures this afternoon. This should keep readings with a degree or two of seasonal averages for early July.

For Thursday and Friday, an area of low pressure moving toward the Washington coastline will turn flow to a more westerly direction. 1000-500 mb thicknesses are forecast to lower by a few dm as this subtle pattern shift commences. The greater Delta influence will lower temperatures to slightly below average which is in the mid 80s around the Delta and low 90s across the Sacramento and San Joaquin Valleys. In terms of expected winds, 20 to 30 mph southwesterly gusts will be likely around the Delta with 10 to 15 mph southerly winds being more commonplace over Valley locations.

By the start of the holiday weekend, temperatures are forecast to come back up a bit as heights build in response to a Four Corners ridge. However, compared to previous model guidance over the last few days, forecast numbers have come down a bit. This is in due to the Pacific Northwest trough sagging southward to the Oregon/California border. Expected Valley highs will be in the mid to upper 90s which is approximately 2 to 4 degrees above climatology. ~BRO

EXTENDED DISCUSSION (Sunday THROUGH Wednesday). For Sunday and heading into next week, only subtle changes are likely in the large-scale pattern. Global ensemble means maintain a positively-tilted trough just offshore of the Pacific Northwest while the Four Corners ridge expands toward Arizona. Ultimately expecting Valley temperatures to stay in the mid to upper 90s through Monday before a slight cooling trend ensues thereafter. If anything, this may take about 3 to 5 degrees off daily temperatures. The overall dry pattern will continue into next week. ~BRO

AVIATION. VFR conditions next 24 hours. Surface winds generally below 12 kts, except for local southwesterly gusts up to 20-25 kts vicinity Delta.

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 47 mi69 min WNW 16 G 20 63°F
PCOC1 - 9415144 - Port Chicago, CA 55 mi69 min W 19 G 23 58°F 70°F
SFXC1 - San Francisco Bay Reserve, CA 56 mi114 min W 14
AAMC1 - 9414750 - Alameda, CA 71 mi69 min WSW 7 G 8.9 58°F 69°F

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA15 mi44 minNNE 410.00 miFair65°F52°F63%1007.9 hPa

Link to 5 minute data for KSCK

Wind History from SCK (wind in knots)
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Last 24hrN4NW5CalmNW6NW3CalmNW4NW5W6W6NW645W9W8NW5W11W12NW13W10W11W12NW7N4
1 day agoNW6NE4E3CalmS3CalmCalmSE44S5S4S75W8
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2 days agoW4CalmW7NW8NW10W6W7NW9N10N11NW14
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Tide / Current Tables for Blackslough Landing, San Joaquin River, California
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Blackslough Landing
Click for Map
Thu -- 03:33 AM PDT     Moonset
Thu -- 03:43 AM PDT     4.15 feet High Tide
Thu -- 05:47 AM PDT     Sunrise
Thu -- 11:37 AM PDT     -0.26 feet Low Tide
Thu -- 05:23 PM PDT     2.82 feet High Tide
Thu -- 06:22 PM PDT     Moonrise
Thu -- 08:31 PM PDT     Sunset
Thu -- 10:35 PM PDT     1.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.73.544.13.93.22.41.60.90.2-0.2-0.20.20.91.72.42.82.72.41.81.41.11.1

Tide / Current Tables for Brandt Bridge, San Joaquin River, California Current
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Brandt Bridge
Click for Map
Thu -- 12:23 AM PDT     0.00 knots Slack
Thu -- 03:15 AM PDT     0.79 knots Max Flood
Thu -- 03:33 AM PDT     Moonset
Thu -- 05:47 AM PDT     Sunrise
Thu -- 06:07 AM PDT     -0.00 knots Slack
Thu -- 10:34 AM PDT     -1.25 knots Max Ebb
Thu -- 02:37 PM PDT     0.00 knots Slack
Thu -- 05:20 PM PDT     0.55 knots Max Flood
Thu -- 06:21 PM PDT     Moonrise
Thu -- 07:37 PM PDT     -0.00 knots Slack
Thu -- 08:31 PM PDT     Sunset
Thu -- 10:32 PM PDT     -0.55 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.20.30.60.80.70.50.1-0.4-0.8-1.1-1.2-1.2-1.1-0.7-0.30.10.40.50.50.2-0.1-0.4-0.5-0.5

Weather Map
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wmap_P
GEOS 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 (4,6,7,8)
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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 numerous 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.