Monday, December9, 2019
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Marine Weather and Tides
Clyde, 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 7:10AMSunset 4:49PM Monday December 9, 2019 2:48 AM PST (10:48 UTC) Moonrise 3:27PMMoonset 4:30AM Illumination 94% 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- 211 Am Pst Mon Dec 9 2019
Today..SW winds up to 10 kt. Patchy fog this morning.
Tonight..W winds up to 10 kt.
Tue..NE winds up to 10 kt.
Tue night..E winds 5 to 15 kt. A chance of rain.
Wed..NE winds 5 to 15 kt. A slight chance of rain.
Wed night..E winds up to 10 kt.
Thu..SE winds around 5 kt.
Fri..W winds up to 10 kt.
PZZ500 211 Am Pst Mon Dec 9 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure will build in from the west into today, keeping winds generally light across the waters. A weak system will then move through the region early this week bringing a chance of showers Tuesday night into Wednesday while winds turn southerly. Moderate northwest swell will persist through much of the week before a larger and longer period northwest swell arrives late this week.


7 Day Forecast for Marine Location Near Clyde, CA
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location: 38.06, -122.04     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 082234 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 234 PM PST Sun Dec 8 2019

SYNOPSIS. Lingering rain and mountain snow showers continue this afternoon, with drier weather returning late this evening. High pressure builds over the region on Monday, which will lead to a period of dry conditions and near average temperatures. More widespread precipitation could return late in the week.

DISCUSSION. Water vapor imagery and mid-level height fields show a positively-tilted trough slipping southward through central California. Cool temperatures aloft combined with daytime heating has fueled scattered showers generally south of Highway 50. A few of the more robust cells may produce a rumble of thunder or two. Across the higher terrain, generally above 5,500 feet, any such snow shower may briefly reduce visibilities. All of this activity should wind down by the evening hours as the upper low shifts farther south along with the loss of diurnal heating. Some residual cloud cover will likely linger into the evening with skies gradually clearing overnight. At this point expecting Valley fog to form given the level of moisture sitting on the ground and in agriculture. This would include the Sacramento and northern San Joaquin Valleys with any fog likely mixing out by mid/late Monday morning.

Heights will continue to build on Monday as an offshore ridge moves through. This ensures a period of dry weather to start the week with near average temperatures. The ridge axis crosses the state early Tuesday before a weak shortwave enters the picture for Tuesday evening into the following morning. Moisture seems to be meager so precipitation will be light, mainly focused over the northern Sacramento Valley and into the higher terrain. Any snowfall will lead to little to no accumulations. Lingering precipitation should diminish by midday Wednesday with the trough shifting into southern Nevada. ~BRO

EXTENDED DISCUSSION (Thursday THROUGH Sunday). We will see zonal flow for the start of the extended period. A short wave tracking into the PacNW Thursday will push a cold front into the region. This will bring the chance for some light showers over the higher elevations with the best chances north of I-80. Snow levels will be high and most of the activity will fall as rain. A stronger trough will dig into the area on Friday. Ensembles are in pretty good agreement with pushing a cold front south through the area Friday night. This will be the best chances for widespread precip activity. The trough axis will then push through on Saturday and this is going to keep widespread shower activity in the mountains throughout the day. Snow levels start out well above pass level but will be falling on Saturday and we could see some light snow down to pass level Saturday afternoon. We also could see breezy southerly winds Saturday morning/afternoon as the trough pushes east through the area.

Short wave riding builds in on Sunday and continues into Monday with dry weather expected. Temperatures will mainly be near average throughout the period.

-CJM

AVIATION. Scattered showers will be possible for KSCK and KMOD until 23z. MVFR conditions are expected until 23z for southern terminals due to low cigs, locally lower vis and cigs in any showers. Skies clear overnight with fog developing KMYV south. Low vis is expected from 10z to 17z brining widespread MVFR conditions with localized IFR. Winds remain under 10 knots.

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 0 mi54 min SSW 2.9 G 4.1 50°F 53°F1019.5 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 5 mi54 min WSW 2.9 G 5.1 50°F 54°F1020 hPa
UPBC1 5 mi54 min W 5.1 G 6
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 8 mi54 min SSW 1 G 1 50°F 1019.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 10 mi183 min NNW 1.9 43°F 1020 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi54 min WSW 4.1 G 5.1 51°F 1019.8 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 20 mi54 min N 6 G 7 52°F 1020.3 hPa
LNDC1 22 mi54 min ESE 2.9 G 2.9 51°F 1019.9 hPa
RCMC1 - 9414863 - Richmond, CA 22 mi54 min N 1 G 1.9 51°F 54°F1019.8 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 23 mi54 min N 2.9 G 2.9 52°F 1020.1 hPa
AAMC1 - 9414750 - Alameda, CA 24 mi54 min Calm G 0 51°F 55°F1020.1 hPa
OBXC1 24 mi54 min 53°F 53°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 24 mi67 min Calm 50°F 1020 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 26 mi54 min WNW 2.9 G 4.1 52°F 1019 hPa
FTPC1 - 9414290 - San Francisco, CA 29 mi54 min S 1 G 1 50°F 54°F1020.4 hPa
46237 - San Francisco Bar, CA (142) 37 mi48 min 54°F5 ft
RTYC1 - 9414523 - Redwood City, CA 39 mi54 min Calm G 1.9 51°F 57°F1020.6 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 47 mi28 min ENE 1.9 G 5.8 54°F 56°F1020.7 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi55 minSSE 33.00 miFog/Mist48°F44°F86%1018.5 hPa
Fairfield / Travis Air Force Base, CA16 mi1.8 hrsSW 54.00 miFog/Mist45°F42°F91%1020.6 hPa
Napa, Napa County Airport, CA16 mi54 minWNW 30.25 miFog41°F41°F100%1019.4 hPa
Vacaville Nut Tree Airport, CA22 mi55 minN 010.00 miFair43°F41°F93%1020 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrCalmSE3CalmE4S6SE3CalmS7SW6NW94CalmNW4CalmNW5CalmNW4E3N3CalmS3SE3SE3SE3
1 day agoCalmS4S8S7S4S6S10S18
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SW135S4SW9S4S8S7SE7S6S9S7
2 days agoCalmCalmCalmCalmNW4E4CalmW5NW7N5NW6W4CalmCalmS9S12
G19
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Tide / Current Tables for Port Chicago, Suisun Bay, California
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Port Chicago
Click for Map
Mon -- 12:17 AM PST     3.44 feet High Tide
Mon -- 04:30 AM PST     Moonset
Mon -- 05:24 AM PST     1.35 feet Low Tide
Mon -- 07:12 AM PST     Sunrise
Mon -- 11:31 AM PST     4.95 feet High Tide
Mon -- 03:26 PM PST     Moonrise
Mon -- 04:48 PM PST     Sunset
Mon -- 07:04 PM PST     -0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.43.32.82.21.71.41.41.92.73.74.54.94.94.53.62.61.60.80.2-0.10.10.81.72.6

Tide / Current Tables for Roe Island S, Suisun Bay, California Current
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Roe Island S
Click for Map
Mon -- 01:57 AM PST     -0.00 knots Slack
Mon -- 04:28 AM PST     -1.08 knots Max Ebb
Mon -- 04:30 AM PST     Moonset
Mon -- 07:12 AM PST     Sunrise
Mon -- 07:23 AM PST     0.00 knots Slack
Mon -- 10:08 AM PST     0.93 knots Max Flood
Mon -- 01:17 PM PST     -0.00 knots Slack
Mon -- 03:26 PM PST     Moonrise
Mon -- 04:48 PM PST     Sunset
Mon -- 05:01 PM PST     -2.27 knots Max Ebb
Mon -- 09:23 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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0.60.4-0-0.7-1-1-0.8-0.30.30.70.90.80.60.1-0.7-1.6-2.1-2.3-2.2-1.8-1.1-0.30.30.5

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 (5,6,7,8)
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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.