Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Rio Vista, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:10AMSunset 7:18PM Tuesday March 19, 2019 10:16 PM PDT (05:16 UTC) Moonrise 4:57PMMoonset 5:40AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 905 Pm Pdt Tue Mar 19 2019
.small craft advisory in effect from 3 am pdt Wednesday through Wednesday evening...
Tonight..SW winds 10 to 20 kt...becoming southeast 15 to 25 kt after midnight. A chance of showers this evening, then showers likely after midnight.
Wed..SW winds 15 to 20 kt with gusts up to 30 kt. Showers likely and a slight chance of Thunderstorms.
Wed night..S winds 5 to 15 kt. A chance of showers.
Thu..SW winds 5 to 15 kt.
Thu night..W winds 5 to 15 kt.
Fri..SW winds 5 to 15 kt. A chance of rain.
Fri night..SW winds 5 to 10 kt. Rain likely.
Sat..W winds 5 to 10 kt.
Sun..S winds up to 10 kt. Winds and wind waves higher in and near Thunderstorms.
PZZ500 905 Pm Pdt Tue Mar 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty southerly winds continuing tonight ahead of an approaching low pressure system and cold front moving in from the west. Winds will shift back to the west and northwest later tomorrow. A long period west swell gradually diminishes late tonight and Wednesday. An additional long period west to northwest swell will arrive towards the end of the week.


7 Day Forecast for Marine Location Near Rio Vista, CA
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location: 38.15, -121.69     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 192213
afdsto
area forecast discussion
national weather service sacramento ca
313 pm pdt Tue mar 19 2019

Synopsis
Last day of dry and mild weather today. Precipitation chances
return tonight bringing high mountain snow with travel delays
through Wednesday night. Another wet system is possible late
Friday into Saturday.

Discussion
Upper trough with negative tilt orientation currently west of the
bay area will move east through norcal tonight. There is not a
lot of moisture with this system. Although, a reasonable amount of
mid-level instability will allow scattered showers and isolated
thunderstorms to develop this evening, best chances will be from
7 pm to 2 am. Snow levels will start out pretty high, above 7000
feet, but lower to 5500 feet by Wednesday. Rainfall over the
valley will be generally light from 0.25-0.50 inches, but locally
heavier in thunderstorms, also some small hail will be possible in
any stronger storms. Snowfall at pass level will be 4 to 8
inches, heaviest period will be after midnight tonight.

Showers are likely to decrease some Wednesday morning, but
atmosphere is expected to again turn unstable during the
afternoon. A better shear profile with increasing southeast low-
level flow will give storms better organization and it is
possible the strongest storms will be Wednesday afternoon, instead
of this evening. Scattered snow showers to continue over the
mountains with accumulations dependent on where convection sets
up.

Dry conditions look to return for most valley locations Thursday
into Friday morning with scattered light showers continuing over
the mountains, not expecting much snow accumulation. Next system
will move in on Friday with more wet weather and mountain travel
delays, but not expecting significant precipitation.

.Extended discussion (Saturday through Tuesday)
guidance for the weekend continues to show a trough passing
through the region on Saturday with weak ridging building behind
it Sunday. Models have trended wetter over the past few runs. Rain
and snow showers will be likely over the foothills and the ridges
Saturday. Drier weather expected by Sunday. Model and ensemble
guidance continue to hint at wet weather for early next week, with
a broad low pressure system sitting off the west coast. Rain
could make into northern california as early as Monday morning,
but the timing is likely to change as we're fairly far out in the
extended forecast.

Aviation
Vfr conditions expected with areas of MVFR possible after 03z due
to showers. Isolated valley thunderstorms will be possible
through 06z Wednesday and again between 18z Wednesday and 03z
Thursday. Southerly winds increase tonight becoming 10-20 knots by
12z.

Sto watches warnings advisories
Winter weather advisory from 11 pm this evening to 11 pm pdt
Wednesday for west slope northern sierra nevada.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi28 min WNW 11 G 17 59°F 1010 hPa
SFXC1 - San Francisco Bay Reserve, CA 18 mi91 min WNW 9.9 56°F 1010 hPa41°F
PCOC1 - 9415144 - Port Chicago, CA 20 mi28 min WSW 8 G 12 57°F 56°F1010.9 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 24 mi28 min W 8.9 G 12 58°F 56°F1011 hPa48°F
UPBC1 24 mi28 min WNW 11 G 14
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 31 mi28 min WSW 9.9 G 14 57°F 1010.9 hPa
LNDC1 40 mi28 min SW 7 G 11 58°F 1011.4 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi28 min SW 13 G 17 58°F 1011.6 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 41 mi28 min SSW 7 G 9.9 58°F 1011.5 hPa
RCMC1 - 9414863 - Richmond, CA 41 mi34 min SSW 9.9 G 17 58°F 56°F1010.9 hPa
AAMC1 - 9414750 - Alameda, CA 42 mi34 min SSW 11 G 13 58°F 59°F1011.9 hPa
OBXC1 42 mi28 min 58°F 51°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 42 mi28 min S 9.9 G 13
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi28 min SE 11 G 14 58°F 1010.3 hPa
PXSC1 44 mi28 min 60°F 49°F
FTPC1 - 9414290 - San Francisco, CA 48 mi34 min WSW 2.9 G 8 57°F 56°F1011.6 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fairfield / Travis Air Force Base, CA16 mi78 minWSW 20 G 2610.00 miPartly Cloudy and Breezy58°F32°F38%1010.5 hPa
Vacaville Nut Tree Airport, CA21 mi23 minSW 1410.00 miA Few Clouds59°F36°F42%1010 hPa
Concord, Buchanan Field, CA22 mi23 minSSW 910.00 miMostly Cloudy60°F44°F56%1009.6 hPa

Wind History from SUU (wind in knots)
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Last 24hrSW8SW9SW11SW4SW9SW7S5CalmSW5SW4SW7SW3CalmCalmSE3CalmCalmS3CalmCalmSW11SW16W20
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1 day agoNW3NW5CalmCalmE3CalmN4N6NE4NE4NE7NE10NE11NE12NE9NE8NE6E7CalmCalmCalmCalmNW5SW4
2 days agoS8S6W5S6SW7CalmNW4NW4N4N8NE9NE9NE7NE9NE8NE6NE5E4NE5E5SE5CalmCalmNW6

Tide / Current Tables for Rio Vista, Sacramento River, California
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Rio Vista
Click for Map
Wed -- 04:23 AM PDT     4.04 feet High Tide
Wed -- 07:10 AM PDT     Sunrise
Wed -- 07:16 AM PDT     Moonset
Wed -- 10:30 AM PDT     0.61 feet Low Tide
Wed -- 04:02 PM PDT     4.76 feet High Tide
Wed -- 06:43 PM PDT     Full Moon
Wed -- 07:10 PM PDT     Moonrise
Wed -- 07:18 PM PDT     Sunset
Wed -- 10:55 PM PDT     -0.67 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.11.32.63.543.93.52.81.91.20.70.71.32.33.54.44.84.53.72.61.40.3-0.4-0.7

Tide / Current Tables for Point Sacramento .3 mi NE, Sacramento River, California Current
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Point Sacramento .3 mi NE
Click for Map
Wed -- 01:51 AM PDT     1.14 knots Max Flood
Wed -- 05:31 AM PDT     -0.00 knots Slack
Wed -- 07:11 AM PDT     Sunrise
Wed -- 07:17 AM PDT     Moonset
Wed -- 08:11 AM PDT     -0.86 knots Max Ebb
Wed -- 11:01 AM PDT     0.00 knots Slack
Wed -- 01:37 PM PDT     1.26 knots Max Flood
Wed -- 05:09 PM PDT     -0.00 knots Slack
Wed -- 06:43 PM PDT     Full Moon
Wed -- 07:11 PM PDT     Moonrise
Wed -- 07:19 PM PDT     Sunset
Wed -- 08:08 PM PDT     -1.21 knots Max Ebb
Wed -- 11:41 PM PDT     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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0.711.110.70.3-0.3-0.7-0.9-0.8-0.5-00.71.21.210.70.1-0.6-1-1.2-1.1-0.9-0.4

Weather Map and Satellite Images
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wmap_P
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (1,6,7,8)
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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.