Thursday, February22, 2018 L-36.com


Marine Weather and Tides
Rio Vista, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:45AMSunset 5:55PM Thursday February 22, 2018 2:38 AM PST (10:38 UTC) Moonrise 10:54AMMoonset 12:00AM Illumination 46% Phase: First Quarter Moon; Moon at 7 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
    EDIT      (on/off)   Help
PZZ530 San Pablo Bay Suisun Bay The West Delta And San Francisco Bay North Of The Bay Bridge- 902 Pm Pst Wed Feb 21 2018
.small craft advisory in effect from 3 am pst Thursday through Thursday evening...
Tonight..W winds 5 to 15 kt.
Thu..NW winds 5 to 15 kt...increasing to 15 to 25 kt in the afternoon. Chance of showers and slight chance of Thunderstorms in the afternoon.
Thu night..NW winds 15 to 25 kt...decreasing to 5 to 15 kt after midnight. Slight chance of Thunderstorms in the evening.
Fri..N winds 5 to 15 kt.
Fri night..NW winds 5 to 15 kt.
Sat..W winds 15 to 25 kt.
Sun..SW winds 10 kt.
Mon..W winds 5 to 15 kt. Chance of showers.
PZZ500 902 Pm Pst Wed Feb 21 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Winds will increase to gale force over the outer waters Thursday afternoon and evening after an upper level shortwave passes through. The strong winds will bring steep fresh swell.

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


Area Discussion for - Sacramento, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksto 220013
afdsto
area forecast discussion
national weather service sacramento ca
413 pm pst Wed feb 21 2018

Synopsis
A cold system will bring low elevation snow to the mountains
late tonight into early Friday, which could impact travelers.

Below normal temperatures will continue. Additional systems
possible next week.

Discussion
A cold system dropping south from western canada will bring low
elevation snow to norcal late tonight into Thursday night. Snow
levels will be around 2000 feet, but briefly fall to 1000 feet at
times in heavier snow showers. The system has slowed a bit and
have pushed back the start time for the winter weather advisory to
after midnight. Snow amounts of 3 to 6 inches are expected above
2000 feet with local amounts up to 10 inches over higher peaks.

Foothill locations like grass valley... Placerville and sonora can
expect 2 to 4 inches. Locations like auburn and jackson could even
pick up a quick dusting.

Unstable air will move over the area Thursday afternoon with
thunderstorms possible over the valley some with small hail. This
convective activity will also enhance snow as it moves into the
foothills and mountains late in the afternoon. The system will
move east of the area Thursday night with snow ending around
midnight.

A brief period of dry weather is expected Friday as short wave
ridge moves overhead between systems. The next system will drop
south in the northwest flow Saturday with a quick 1 to 3 inches
of snow for the sierra north of highway 50.

.Extended discussion (Sunday through Wednesday)
active pattern is expected through the extended period as
successive disturbances embedded in the upper flow drop down from
the north. Guidance is still struggling with the progression of
these systems and precipitation amounts. Regardless, these systems
have the potential to bring widespread precipitation, mountain
snow, and breezy to gusty winds. Given the cold nature of these
systems, snow levels will remain relatively low.

Unlike previous systems, the upcoming ones have the potential to
pull in significant moisture. At this point, Sunday appears to be
dry except for shower activity over the mountains. More widespread
precipitation is possible across the forecast area Monday into
early Tuesday. After a brief break late Tuesday into early
Thursday, a stronger and wetter system is progged to push across
interior norcal late next week, but details remain uncertain.

Temperatures will remain at or below average.

Aviation
Vfr conditions this evening. MVFR ifr due to snow showers over
the foothills mountains, mainly after 08z Thursday. Isolated
thunderstorms in the central valley after 18z Thursday.

Sto watches warnings advisories
Winter weather advisory from 1 am to 10 pm pst Thursday for
burney basin eastern shasta county-motherlode-northeast
foothills sacramento valley-west slope northern sierra nevada-
western plumas county lassen park.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi51 min W 5.1 G 8 46°F 1021.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 18 mi114 min W 5.1 41°F 1022 hPa38°F
PCOC1 - 9415144 - Port Chicago, CA 20 mi51 min SSW 7 G 9.9 42°F 52°F1021.8 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 24 mi51 min SW 8 G 8.9 45°F 52°F1022.1 hPa41°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 31 mi57 min W 8 G 11 47°F 1021.8 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi51 min NW 8.9 G 12 48°F 1022.6 hPa
LNDC1 40 mi51 min WNW 8 G 12 48°F 1022.5 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 41 mi51 min NW 9.9 G 13 48°F 1022.6 hPa
RCMC1 - 9414863 - Richmond, CA 41 mi51 min WNW 7 G 9.9 1022.2 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 42 mi51 min WNW 12 G 14
OBXC1 42 mi51 min 48°F 39°F
AAMC1 - 9414750 - Alameda, CA 42 mi51 min WNW 13 G 17 1022.6 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 44 mi50 min SW 2.9 42°F 1022 hPa (-1.0)
PXSC1 44 mi51 min 48°F 39°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi51 min W 5.1 G 8.9 47°F 1021.6 hPa
FTPC1 - 9414290 - San Francisco, CA 48 mi51 min W 4.1 G 8 1022.9 hPa

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
Last
24hr
S5
G9
SW3
G7
S3
NE8
NE10
NE11
E10
E11
G14
E6
G10
NE4
NE2
W3
NE1
N2
N1
W5
W9
W14
W12
G17
SW6
G9
SW3
G9
S7
S8
SW4
G10
1 day
ago
S8
S6
S7
S7
S7
S8
S5
G8
S2
NE5
NE5
NE6
NW6
NW4
W9
G12
W10
SW7
W9
G12
W8
SW9
SW3
G7
S7
S7
S5
S6
2 days
ago
W20
W17
W13
G16
W11
G16
W11
W7
SW3
W5
W3
W4
G10
W3
G13
N2
W7
W2
G5
S5
S6
SW3
G7
S4
S4
G8
SW5
SW3
G6
S6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fairfield / Travis Air Force Base, CA16 mi41 minSW 1510.00 miFair39°F38°F96%1021.7 hPa
Vacaville Nut Tree Airport, CA21 mi46 minSSW 610.00 miFair42°F36°F79%1021.4 hPa
Concord, Buchanan Field, CA22 mi46 minS 610.00 miFair41°F34°F76%1020.8 hPa

Wind History from SUU (wind in knots)
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
Last 24hrCalmN6NE7N9NE8N10N11NE13N9N9N7CalmSE3SW3SW6SW7W9SW12SW11SW9SW11SW12SW12SW15
1 day agoCalmCalmW5SW7S5CalmCalmN4N4N4CalmS5CalmSW8CalmW9W7SW6S7S8SW7CalmCalmCalm
2 days agoW10W10W8W5W5CalmCalmNW5N7N8N7S6SW6W5CalmCalmW4W3W5SW3CalmCalmW3N5

Tide / Current Tables for Rio Vista, Sacramento River, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Rio Vista
Click for Map
Thu -- 01:11 AM PST     1.64 feet Low Tide
Thu -- 06:48 AM PST     Sunrise
Thu -- 08:15 AM PST     4.54 feet High Tide
Thu -- 10:53 AM PST     Moonrise
Thu -- 03:49 PM PST     0.77 feet Low Tide
Thu -- 05:52 PM PST     Sunset
Thu -- 09:02 PM PST     3.04 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.61.71.822.63.34.14.54.43.82.92.11.61.10.90.811.52.22.832.92.5

Tide / Current Tables for Sherman Island (East), California Current
   EDIT      (on/off)   Help   One Week of Data
Sherman Island (East)
Click for Map
Thu -- 02:10 AM PST     0.00 knots Slack
Thu -- 05:23 AM PST     1.15 knots Max Flood
Thu -- 06:48 AM PST     Sunrise
Thu -- 08:45 AM PST     -0.00 knots Slack
Thu -- 10:54 AM PST     Moonrise
Thu -- 11:43 AM PST     -1.30 knots Max Ebb
Thu -- 04:05 PM PST     0.00 knots Slack
Thu -- 05:53 PM PST     Sunset
Thu -- 07:27 PM PST     0.64 knots Max Flood
Thu -- 09:58 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-0.5-0.10.40.91.11.10.90.4-0.2-0.8-1.2-1.3-1.1-0.8-0.4-00.30.50.60.60.4-0-0.5

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Sacramento, CA (5,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Sacramento, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.