Saturday, August8, 2020
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Marine Weather and Tides
Sacramento, 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 6:12AMSunset 8:10PM Friday August 7, 2020 11:06 PM PDT (06:06 UTC) Moonrise 9:41PMMoonset 9:02AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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- 831 Pm Pdt Fri Aug 7 2020
Tonight..SW winds 5 to 15 kt.
Sat..SW winds 10 to 20 kt with gusts up to 25 kt.
Sat night..SW winds 5 to 15 kt with gusts up to 25 kt.
Sun..SW winds 10 to 20 kt with gusts up to 25 kt.
Sun night..SW winds 5 to 15 kt.
Mon..SW winds 10 to 20 kt with gusts up to 30 kt.
Mon night..SW winds 10 to 15 kt.
Tue..SW winds 10 to 20 kt with gusts up to 25 kt.
Wed..SW winds 10 to 20 kt with gusts up to 25 kt.
PZZ500 831 Pm Pdt Fri Aug 7 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Breezy north-northwest winds over the northern outer waters with lighter south-southwesterly breezes near the coast. Winds are forecast to ease gradually through the weekend. Locally hazardous conditions for small craft primarily in the region of stronger winds and the potential for squared seas in the northern outer waters.


7 Day Forecast for Marine Location Near Sacramento, CA
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location: 38.58, -121.51     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 072111 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 211 PM PDT Fri Aug 7 2020

SYNOPSIS. Warming trend through the weekend, turning above normal by Saturday. Moderate heat risk for the northern Sacramento Valley and foothills Sunday and Monday. A slight chance of mountain thunderstorms from Friday into early next week.

DISCUSSION. Temperatures early this afternoon are around 4 to 10 degrees warmer than this time yesterday across the Valley, a couple degrees warmer in the mountains. The upper trough over CA continues to slowly separate from the main flow today as the main jet moves into Montana, allowing heights to raise and temperatures to warm for NorCal. Temperatures will peak right around normal today in the 90s to 100 in the Valley and 70s to upper 80s in the mountains. Models indicate just enough moisture streaming around the low and instability to produce a slight chance of isolated thunderstorms over the Sierra crest this afternoon and early evening, mainly south of I-80.

The upper low cuts off by tomorrow and will linger off the Central CA coast into early next week. Upper heights and therefore temperatures will continue to rise through the weekend, rising 2 to 5 degrees each day to 5 to 10 degrees above normal by Sunday and Monday. Moderate heat risk is forecast Sunday and Monday, especially in the northern Sacramento Valley and adjacent foothills, as Valley temperatures peak in the upper 90s to 108. Overnight lows will be fairly warm in the north as well, only falling to the upper 60s to low 70s through Monday night. Sensitive groups should take precautions to protect themselves from this heat, especially those without air conditioning or those with outdoor plans.

The cut off low lingering off the coast will continue to produce a slight chance of afternoon and evening thunderstorms over the Sierra crest through the weekend. Ensembles then suggest heights lowering slightly over the west and NorCal Monday could bring enough instability over the mountains to produce a better chance of isolated thunderstorms over the Sierra Monday afternoon and evening. HEC

EXTENDED DISCUSSION (Tuesday THROUGH Friday). The synoptic pattern which has been a fixture for much of the summer continues next week. A weak, elongated trough sets up off the coast while a sprawling ridge of high pressure remains fixed over the Four Corners region. Up in the Pacific Northwest, shortwaves will race toward the east, but attendant height falls should remain well to the north of the region. It will prove to be a quiet period over interior northern California with highs running close to mid-August climatology. Some moisture and instability lingering along the Sierra crest could spawn a few showers and thunderstorms on Tuesday, mainly south of I-80. Otherwise, the period is looking quite dry. ~BRO

AVIATION. VFR conditions expected the next 24 hours. Southwesterly surface wind gusts 20-25 knots in the vicinity of the Carquinez Strait/West Delta, particularly after 00Z. Over the northern Sacramento Valley TAF sites, brief north to northwesterly gusts up to 15 knots are possible through 00Z. ~BRO

STO WATCHES/WARNINGS/ADVISORIES. None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 38 mi81 min W 12
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 42 mi48 min WNW 8.9 G 12 75°F 1011.6 hPa
PCOC1 - 9415144 - Port Chicago, CA 46 mi48 min WSW 7 G 8.9 69°F 71°F1012.3 hPa
RCMC1 - 9414863 - Richmond, CA 66 mi48 min 65°F

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sacramento Executive Airport, CA4 mi73 minS 410.00 miFair72°F55°F57%1010.9 hPa
Sacramento, McClellan Airfield Airport, CA8 mi71 minS 510.00 miFair79°F57°F48%1010.8 hPa
Sacramento International Airport, CA10 mi73 minS 910.00 miFair76°F57°F54%1010.3 hPa
University Airport, CA15 mi76 minSW 410.00 miFair75°F57°F54%1010.8 hPa
Lincoln Regional Karl Harder Field, CA24 mi71 minN 010.00 miFair77°F53°F44%1010.8 hPa

Link to 5 minute data for KSAC

Wind History from SAC (wind in knots)
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Last 24hrS7S5--S7S5S5S7S3SW3Calm3S4S3S3SW5S6S5CalmS66SW7SW6S4SW4
1 day agoS5S3S4S4S7S6S5S3W7W7NW4443CalmW4S64SW7SW11
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Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Sat -- 06:14 AM PDT     Sunrise
Sat -- 06:35 AM PDT     0.67 feet Low Tide
Sat -- 10:30 AM PDT     2.49 feet High Tide
Sat -- 10:59 AM PDT     Moonset
Sat -- 06:32 PM PDT     0.18 feet Low Tide
Sat -- 08:08 PM PDT     Sunset
Sat -- 11:04 PM PDT     Moonrise
Sat -- 11:44 PM PDT     2.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.62.421.61.20.90.70.71.222.42.52.321.61.10.70.40.20.20.61.42.12.6

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Sat -- 05:05 AM PDT     0.67 feet Low Tide
Sat -- 06:14 AM PDT     Sunrise
Sat -- 09:21 AM PDT     2.49 feet High Tide
Sat -- 10:59 AM PDT     Moonset
Sat -- 05:02 PM PDT     0.18 feet Low Tide
Sat -- 08:07 PM PDT     Sunset
Sat -- 10:35 PM PDT     2.65 feet High Tide
Sat -- 11:04 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.31.91.410.80.70.91.52.12.52.52.31.91.40.90.50.30.20.40.91.72.32.62.6

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 (2,6,7,8)
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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.