Wednesday, December11, 2019
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Marine Weather and Tides
Bay Point, CA

Version 3.4
NOTICE
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.
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 7:12AMSunset 4:49PM Wednesday December 11, 2019 4:47 PM PST (00:47 UTC) Moonrise 4:43PMMoonset 6:35AM Illumination 100% Phase: Full Moon; Moon at 15 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- 205 Pm Pst Wed Dec 11 2019
Tonight..S winds 5 to 10 kt. A chance of rain.
Thu..S winds 5 to 15 kt. A chance of rain.
Thu night..W winds 5 to 10 kt. A slight chance of rain.
Fri..SW winds 5 to 10 kt. A chance of rain.
Fri night..W winds 10 to 20 kt with gusts up to 25 kt. A slight chance of rain.
Sat..W winds 5 to 15 kt.
Sat night..W winds 5 to 15 kt.
Sun..NW winds up to 10 kt.
Mon..NE winds 5 to 10 kt. A chance of rain.
PZZ500 205 Pm Pst Wed Dec 11 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light southerly winds will prevail tonight into Thursday then switch around to the northwest with the arrival of the next weather system. This next system will also bring with it a large long period northwest swells. This swell will build on Thursday, peak on Friday and continue through Saturday.


7 Day Forecast for Marine Location Near Bay Point, CA
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location: 38.04, -121.94     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 112257 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 257 PM PST Wed Dec 11 2019

SYNOPSIS. Light rain at times through Thursday, heaviest in the mountains. Widespread precipitation also expected later in the week and into the weekend. Drier weather Sunday and early next week.

DISCUSSION. Precip should increase over our forecast area tonight into Thu as a strong 150kt Pac jet south of the GOA (Gulf of AK) low reaches the coast and focuses a +3 PW anomaly into our CWA. The U.S. West Coast AR Tool shows that a "weak" AR (TPW/moisture plume) along 130W will make "landfall" during this time tonight and into Thu. Rising 5H heights will steer the storm track and main dynamics a little farther N and into the Pac NW. But the strong WAA tonite and Thu (over 5 deg C/12 hr in the 850-700 mbs layer) will interact with the moisture plume resulting in steady precip over Norcal, mainly over the Nrn mtns and areas N of I-80. One to two inches of precip is forecast over Shasta Co/Wrn Plumas Co during this time, with amounts tapering off rapidly Swd to the I-80 corridor. South of I-80/US-50, only a few hundredths are expected as the storm track shifts Nwd. Snow levels are relatively high due to the transport of subtropical moisture from Hawaii. The snow profilers indicate a snow level around 5500 ft at Shasta Dam, around 7500 ft at Oroville, and Colfax, and could rise some 500 to 1500 ft overnite due to the WAA.

The wet wx should continue on Fri as 5H heights begin to fall slowly as the GOA trof emerges from its source region. This will keep the TPW plume over our CWA through the day. Model freezing/snow level forecasts came in a little colder than previous runs and we began to lower them a little from earlier forecasts. Looks as if the snow level will drop below the passes along the I-80/US-50 corridor by Fri morning. There is likely to be enough QPF Fri and FRi nite (and maybe into Sat) to warrant a snow advisory as the snow levels drop below the Sierra passes. With the bulk of the precip falling over the Sierra, our total QPF thru 12z Sun is now falling in line within the body of the ECMWF ensembles box/whisker plots for BLU, as an example.

The precip should turn more showery on Sat as the colder/unstable air drops into Norcal as the upper low and trof move across the NErn Pac to the Pac NW/Nrn CA coast before winding down on Sun. Snow levels should drop to 3500 ft Nrn mtns to 4000 ft in the Sierra late Sat, but by then the precip will be diminishing. JHM

EXTENDED DISCUSSION (Sunday THROUGH Wednesday).

The weather system bringing multiple days of rain and snow to northern California will be moving out of the area by early Sunday morning. As troughing moves towards the southwest US, upper level ridging begins to build over the west coast. Dry weather and mostly clear skies are anticipated by mid-afternoon Sunday, with these conditions continuing through at least Monday. Tuesday onward, models have varying solutions for when another trough will impact the area bringing additional chances for precipitation. Went with ensemble guidance for this forecast bringing back wet weather to the area Tuesday, although confidence is still low at this time with the onset of any rain. Temperatures remain fairly steady Sunday into next week with Valley highs topping out in the mid-50s. Mountain locations will mainly see high temperatures in the 30s.

AVIATION.

Widespread MVFR/IFR conditions seen through around 20Z. Brief improvement may be seen before another storm brings -RA after 02Z. MVFR/IFR ceilings return by early morning to all sites. VCSH possible around 12Z at Sac terminals. Winds generally less than 12kts.

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 3 mi53 min ESE 6 G 7 53°F 1022.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 5 mi53 min ENE 7 G 8.9 52°F 54°F1022.5 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 10 mi53 min ENE 4.1 G 6 52°F 54°F1023 hPa
UPBC1 10 mi53 min E 5.1 G 8
SFXC1 - San Francisco Bay Reserve, CA 12 mi62 min ESE 5.1 53°F 1023 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 17 mi53 min ESE 13 G 15 53°F 1022.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 24 mi53 min NNW 1.9 G 2.9 58°F 1022.6 hPa
LNDC1 25 mi53 min N 1 G 1.9 57°F 1022.1 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 26 mi53 min NNW 4.1 G 4.1 54°F 1022.3 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 26 mi53 min NNW 4.1 G 5.1
RCMC1 - 9414863 - Richmond, CA 26 mi53 min NW 5.1 G 5.1 54°F 55°F1022.1 hPa
OBXC1 27 mi53 min 55°F 55°F
AAMC1 - 9414750 - Alameda, CA 27 mi53 min N 1.9 G 4.1 56°F 55°F1022.2 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi53 min NW 2.9 G 2.9 54°F 1021.3 hPa
PXSC1 29 mi53 min 55°F 55°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 29 mi66 min N 6 53°F 1023 hPa
FTPC1 - 9414290 - San Francisco, CA 32 mi53 min NNE 2.9 G 4.1 54°F 55°F1022.6 hPa
RTYC1 - 9414523 - Redwood City, CA 40 mi53 min N 2.9 G 2.9 58°F 57°F1022.5 hPa
46237 - San Francisco Bar, CA (142) 41 mi47 min 55°F8 ft

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA7 mi54 minNE 31.75 miFog/Mist54°F50°F87%1021.3 hPa
Fairfield / Travis Air Force Base, CA17 mi1.8 hrsENE 52.50 miFog/Mist53°F51°F92%1023.7 hPa
Napa, Napa County Airport, CA22 mi53 minE 13 G 182.50 miFog/Mist53°F51°F93%1021.4 hPa
Vacaville Nut Tree Airport, CA23 mi54 minN 01.00 miFog/Mist53°F51°F93%1023.5 hPa
Livermore, Livermore Municipal Airport, CA24 mi54 minE 66.00 miFog/Mist57°F53°F87%1022.2 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrE6N4N5CalmSW3NW4CalmCalmCalmCalmN3N5NE3CalmCalmCalmNE3NE4N5CalmCalmNE56NE3
1 day agoCalmW4W6W5W4CalmW5W3CalmCalmCalmCalmCalmCalmCalmNW3CalmE3NE5NE3NE5N3NE5E6
2 days agoNW5CalmNW4E3N3CalmS3SE3SE3SE3S3SE3CalmSE4CalmCalmSW3CalmCalmSW5CalmNW8NW7NW8

Tide / Current Tables for Mallard Island Ferry Wharf, Suisun Bay, California
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Mallard Island Ferry Wharf
Click for Map
Wed -- 02:52 AM PST     3.07 feet High Tide
Wed -- 06:35 AM PST     Moonset
Wed -- 07:13 AM PST     Sunrise
Wed -- 07:40 AM PST     1.51 feet Low Tide
Wed -- 01:20 PM PST     4.48 feet High Tide
Wed -- 04:42 PM PST     Moonrise
Wed -- 04:48 PM PST     Sunset
Wed -- 09:14 PM PST     Full Moon
Wed -- 09:23 PM PST     -0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.72.42.93.12.82.41.91.61.51.82.53.34.14.54.43.93.22.31.30.60-0.3-0.20.3

Tide / Current Tables for Stake Point .9 Mi NNW, Suisun Bay, California Current
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Stake Point .9 Mi NNW
Click for Map
Wed -- 01:22 AM PST     0.66 knots Max Flood
Wed -- 04:13 AM PST     -0.00 knots Slack
Wed -- 06:05 AM PST     -0.26 knots Max Ebb
Wed -- 06:35 AM PST     Moonset
Wed -- 07:13 AM PST     Sunrise
Wed -- 08:00 AM PST     0.00 knots Slack
Wed -- 11:43 AM PST     0.95 knots Max Flood
Wed -- 02:31 PM PST     -0.00 knots Slack
Wed -- 04:42 PM PST     Moonrise
Wed -- 04:48 PM PST     Sunset
Wed -- 05:56 PM PST     -0.95 knots Max Ebb
Wed -- 09:14 PM PST     Full Moon
Wed -- 10:13 PM PST     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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0.60.70.60.40.1-0.2-0.3-0.2-00.30.70.90.90.70.3-0.2-0.6-0.9-1-0.9-0.7-0.5-0.10.3

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 (19,4,5,8)
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Ground Weather Radar Station Sacramento, CA
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