Sunday, January19, 2020
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Marine Weather and Tides
Benicia, 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 7:20AMSunset 5:18PM Sunday January 19, 2020 8:39 AM PST (16:39 UTC) Moonrise 2:31AMMoonset 1:09PM Illumination 30% Phase: Waning Crescent; Moon at 24 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- 808 Am Pst Sun Jan 19 2020
Rest of today..NE winds 5 to 15 kt.
Tonight..NE winds 5 to 15 kt.
Martin luther king jr day..SE winds up to 10 kt.
Mon night..S winds 10 to 20 kt with gusts up to 25 kt. Rain likely.
Tue..S winds 10 to 20 kt with gusts up to 30 kt. Rain likely.
Tue night..W winds 5 to 15 kt. A chance of rain.
Wed..NW winds around 5 kt.
Thu..NW winds around 5 kt.
PZZ500 808 Am Pst Sun Jan 19 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light to moderate offshore winds will persist across the coastal waters today as high pressure remains over the great basin. Winds will increase and turn southerly on Monday ahead of an approaching frontal system. Moderate northwest swell will continue through the afternoon generating hazardous seas conditions for small vessels. A larger northwest swell will arrive mid week.


7 Day Forecast for Marine Location Near Benicia, CA
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location: 38.04, -122.13     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 191130 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 330 AM PST Sun Jan 19 2020

SYNOPSIS. Some fog possible in portions of the Central Valley and mountain valleys this morning. Mostly dry and mild today with precipitation returning late Monday into Wednesday.

DISCUSSION. Upper ridging near 120W this morning with considerable amounts of baroclinic cirrus feeding into it from approaching mid latitude wave. Despite higher clouds, some fog has developed overnight in portions of the Northern San Joaquin Valley. Potential for patchy fog to further develop north into the Southern Sac Valley and Delta overnight. Fog lifted into stratus deck yesterday in the Northern San Joaquin Valley. This likely to occur again today and will be slow to dissipate, if at all, under abundant higher cloud cover. Rising 1000-500mb thicknesses will lead to slightly warmer temperatures today for most areas in the CWA with highs near to slightly above normal.

Second mid-latitude wave approaches Monday but weakens and gets drawn into progressing long wave. Associated baroclinic zone weakens as it approaches the coast. A stronger Pacific frontal system follows quickly behind it and begins to spread associated precip into the Coastal range and northern portions of the CWA Monday night. Surface winds increase Monday night as front draws closer. Widespread precip then spreads over interior NorCal Tuesday morning as frontal system moves inland. Snow begins in the mountains of Western Plumas and Northern Sierra Nevada Tuesday morning. Bulk of associated precip moves through during the day Tuesday. Post-frontal showers Tuesday night into Wednesday can be expected, especially over our eastern mountains. Snow levels start out around 4000 to 5500 Monday night, lowering to 3500 to 4500 feet by Wednesday morning. Model QPF has decreased some from previous runs and suggests snowfall amounts of 4-12 inches generally AOA 5000 feet with locally higher amounts over Lassen Peak. Rainfall amounts in the Central Valley range from under a tenth in the Northern San Joaquin Valley to above half an inch in the Northern Sacrament Valley. Around an inch of rain is expected in the wetter foothills locations. Breezy Tuesday as the front moves through with locally windy conditions over higher terrain.

Precip turns showery Tuesday afternoon into evening with fropa. Lingering showers possible overnight into Wednesday morning, mainly over the mountains. Drier weather expected midweek with warming temperatures as upper ridging returns. Weak waves moving through the ridge will keep a slight chance of light showers over the Coastal and Shasta mountain Wed/Thu, otherwise dry with some night/morning valley fog likely.

PCH

EXTENDED DISCUSSION (Thursday THROUGH Sunday). The beginning of the forecast period will start out dry, under upper level ridging. The exception will be some light showers, mainly over the northern mountains. Forecast highs in the Valley will be in the upper 50s to low 60s, with mountain locations in the mid 30s to low 50s. Uncertainty arises late in the period as model guidance suggests the potential for widespread precipitation next weekend, but confidence is low given model disagreement. Specific details will likely change so stay tuned.

AVIATION. VFR conditions next 24 hours, except for periods of MVFR conditions, locally IFR/LIFR, mainly south of KMYV through 18z-20z today due to BR/FG.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
UPBC1 0 mi87 min ENE 11 G 12
MZXC1 - 9415102 - Martinez-Amorco CA 0 mi57 min 41°F 50°F1022.9 hPa
PCOC1 - 9415144 - Port Chicago, CA 5 mi51 min 40°F 49°F1022.5 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 7 mi51 min 43°F 1022.2 hPa
SFXC1 - San Francisco Bay Reserve, CA 12 mi54 min ESE 7
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi57 min 40°F 1023 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 16 mi51 min 54°F 1022.2 hPa
RCMC1 - 9414863 - Richmond, CA 17 mi51 min 52°F
LNDC1 19 mi51 min 50°F 1021.6 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 19 mi51 min 49°F 1021.7 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 20 mi46 min WNW 5.1 48°F 1022 hPa (+0.0)
OBXC1 20 mi51 min 50°F 45°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 20 mi87 min SE 4.1 G 7
AAMC1 - 9414750 - Alameda, CA 21 mi51 min 52°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi51 min 51°F 1020.8 hPa
PXSC1 22 mi51 min 51°F 40°F
FTPC1 - 9414290 - San Francisco, CA 24 mi57 min 51°F 53°F1021.7 hPa
46237 - San Francisco Bar, CA (142) 32 mi69 min 53°F9 ft
RTYC1 - 9414523 - Redwood City, CA 37 mi51 min 45°F 52°F1022.4 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 42 mi29 min E 19 G 25 53°F 54°F1021 hPa
PRYC1 - 9415020 - Point Reyes, CA 45 mi51 min 53°F1020.5 hPa

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi46 minNNW 610.00 miFair40°F37°F89%1021.3 hPa
Napa, Napa County Airport, CA14 mi45 minE 156.00 miFog/Mist39°F37°F93%1021.2 hPa
Fairfield / Travis Air Force Base, CA20 mi1.7 hrsE 90.38 miFog40°F37°F90%1024.1 hPa
Oakland, Metro Oakland International Airport, CA24 mi46 minSE 710.00 miMostly Cloudy47°F39°F74%1022.1 hPa
Novato / Gnoss Field, CA24 mi44 minSSW 610.00 miFair45°F41°F87%1022.7 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrE4NE5NE6NE9NE6NE7E8NE8E5E3SE3SE4E5E3E4E3CalmNE3E5E4CalmNW6NW6NW6
1 day agoCalmN3NW4N8N6N8N5NW7N7NE4N3N4N4CalmCalmSE4CalmCalmNE3CalmCalm3NE4Calm
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--S8S13S9S8S12S10S7S7S10S9S7S8S10S9S7S6SE5SE4SE4S5CalmE3

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Sun -- 02:17 AM PST     1.29 feet Low Tide
Sun -- 02:31 AM PST     Moonrise
Sun -- 07:21 AM PST     Sunrise
Sun -- 08:52 AM PST     5.46 feet High Tide
Sun -- 01:09 PM PST     Moonset
Sun -- 04:14 PM PST     0.12 feet Low Tide
Sun -- 05:16 PM PST     Sunset
Sun -- 10:17 PM PST     3.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.61.31.41.92.83.94.75.35.55.14.43.32.31.30.50.10.30.91.82.73.53.93.8

Tide / Current Tables for Roe Island S, Suisun Bay, California Current
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Roe Island S
Click for Map
Sun -- 01:43 AM PST     -1.45 knots Max Ebb
Sun -- 02:30 AM PST     Moonrise
Sun -- 04:52 AM PST     0.00 knots Slack
Sun -- 07:21 AM PST     Sunrise
Sun -- 07:41 AM PST     1.00 knots Max Flood
Sun -- 11:11 AM PST     -0.00 knots Slack
Sun -- 01:08 PM PST     Moonset
Sun -- 03:07 PM PST     -2.24 knots Max Ebb
Sun -- 05:16 PM PST     Sunset
Sun -- 07:03 PM PST     0.00 knots Slack
Sun -- 09:44 PM PST     0.64 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9-1.3-1.4-1.2-0.70.10.60.910.80.50.1-0.8-1.6-2-2.2-2.1-1.6-0.8-00.40.60.60.5

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 (11,2,3,4)
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Ground Weather Radar Station Sacramento, CA
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weather_mapweather_map weather_map

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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.