Monday, December11, 2017 L-36.com


Marine Weather and Tides
Discovery Bay, 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 7:10AMSunset 4:48PM Monday December 11, 2017 2:42 PM PST (22:42 UTC) Moonrise 12:51AMMoonset 1:22PM Illumination 40% Phase: Third Quarter Moon; Moon at 23 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- 211 Pm Pst Mon Dec 11 2017
Tonight..NE winds 10 kt.
Tue..NE winds 10 kt.
Tue night..NE winds 10 kt.
Wed..NE winds 10 kt.
Wed night..NE winds 10 kt.
Thu..NE winds 10 kt.
Fri..NW winds 5 kt.
Sat..SW winds 5 kt.
PZZ500 211 Pm Pst Mon Dec 11 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light to moderate winds will continue along the central coast as high pressure remains over the region. Winds will gradually increase out of the north midweek. A longer period swell arrived today and will impact the coast thru midweek.

7 Day Forecast for Marine Location Near Discovery Bay, CA
   Hourly   EDIT   Help
location: 37.89, -121.49     debug


Area Discussion for - Sacramento, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksto 111118
afdsto
area forecast discussion
national weather service sacramento ca
318 am pst Mon dec 11 2017

Synopsis
Dry weather into next weekend with mild days and chilly nights.

Discussion
Clear skies across interior norcal except for some high clouds
south of i-80 associated with the closed low near baja california.

Current temperatures are similar to readings from 24 hours ago and
range from the teens in the mountain valleys, upper 20s to upper
30s in the central valley and 40s to lower 50s across the foothill
and west slopes thermal belts.

Upper high shifts slightly east into Tuesday as a short-wave
trough rides the ridge towards bc. Ridge then retrogrades back to
the west coast Wednesday with dry weather persisting. Little
change in the weather through the week with some morning patchy
fog or frost possible in the central valley. Highs will continue
to be above average with record highs possible across portions of
the northern sacramento valley.

.Extended discussion (Friday through Monday)
upper trough moving through the pacific northwest on Friday will
weaken persistant west coast ridge bringing cooling most areas
especially northern cwa. At this time it appears any precipitation
with this system will remain north of the forecast area. Dispite
cooling, daytime highs will remain above normal. Upper ridge
rebuilds briefly on Saturday will little change expected in
daytime highs. Another shortwave trough rides over the ridge on
Sunday. Models differ on strength of this shortwave with gfs
currently a little deeper. Far northern california could see a
little light precipitation but probability remains fairly small.

Otherwise, extended forecast remains dry with above normal daytime
highs and relatively light winds.

Aviation
Vfr conditions over interior norcal next 24 hours except for MVFR
ifr vsbys possible in br fg over the central valley through 20z
and again after 06z tonight. Surface winds generally below 10 kts.

Sto watches warnings advisories None.



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 23 mi43 min SSE 6 G 8 60°F 1025.6 hPa (-2.1)
PCOC1 - 9415144 - Port Chicago, CA 31 mi43 min ENE 8.9 G 11 60°F 53°F1025.3 hPa (-2.0)
MZXC1 - 9415102 - Martinez-Amorco CA 35 mi43 min ENE 4.1 G 6 61°F 54°F1025.6 hPa (-2.1)37°F
SFXC1 - San Francisco Bay Reserve, CA 36 mi58 min E 8 65°F 1025 hPa33°F
LNDC1 42 mi43 min SSW 1.9 G 1.9 62°F 1024.7 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 43 mi43 min E 8.9 G 12 60°F 1025 hPa (-1.4)
AAMC1 - 9414750 - Alameda, CA 44 mi43 min ESE 1 G 2.9 56°F 55°F1024.8 hPa (-1.7)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 45 mi43 min SW 1 G 1.9
OBXC1 45 mi43 min 60°F 38°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 45 mi43 min SSW 1.9 G 1.9 62°F 1024.7 hPa (-1.8)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 46 mi43 min NE 4.1 G 6 68°F 1025.1 hPa (-1.6)
RTYC1 - 9414523 - Redwood City, CA 47 mi43 min E 1 G 2.9 64°F 54°F1025.1 hPa (-1.8)
PXSC1 48 mi43 min 59°F 43°F
RCMC1 - 9414863 - Richmond, CA 49 mi43 min NE 9.9 G 12 65°F 55°F1024.6 hPa (-1.7)

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
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
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last
24hr
E11
E11
E9
E8
E7
E5
G8
NE7
NE4
E1
G4
E1
--
N2
NE5
NE4
E4
E3
E4
E6
E7
E7
NE6
NE10
NE9
E10
1 day
ago
E11
E11
E8
E8
NE4
NE4
NE3
NE1
SE3
E1
S3
N1
NE5
E6
SE4
E7
E2
SE4
E6
NE5
NE11
NE10
E11
E11
2 days
ago
E9
E7
E5
E4
W1
N4
N2
SE3
E2
SE1
W1
W2
S5
NE1
E1
--
E4
E5
E4
NE6
NE7
NE9
E11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA13 mi48 minNW 510.00 miFair64°F41°F43%1025.6 hPa
Livermore, Livermore Municipal Airport, CA22 mi50 minENE 1010.00 miFair66°F32°F28%1024.8 hPa

Wind History from SCK (wind in knots)
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
Last 24hrNW6W5W4CalmCalmCalmCalmCalmCalmCalmCalmCalmE4E4CalmCalmCalmCalm--CalmW4NW64NW5
1 day agoCalmCalmW5W3W3W3CalmE3CalmCalmSE4NE3CalmCalmCalmE4CalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmNW6W5NW5W3W3CalmE3CalmSE4CalmE4CalmCalmCalmCalmE3E3CalmCalmCalmW33Calm

Tide / Current Tables for Borden Highway Bridge, Middle River, San Joaquin River, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Borden Highway Bridge
Click for Map
Mon -- 12:46 AM PST     2.46 feet High Tide
Mon -- 12:51 AM PST     Moonrise
Mon -- 07:11 AM PST     Sunrise
Mon -- 07:26 AM PST     0.05 feet Low Tide
Mon -- 01:21 PM PST     Moonset
Mon -- 01:58 PM PST     3.09 feet High Tide
Mon -- 04:46 PM PST     Sunset
Mon -- 08:25 PM PST     0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.52.31.81.20.70.30.10.10.51.11.82.42.93.12.92.41.81.20.70.40.50.81.3

Tide / Current Tables for Brandt Bridge, San Joaquin River, California Current
   EDIT      (on/off)   Help   One Week of Data
Brandt Bridge
Click for Map
Mon -- 12:50 AM PST     Moonrise
Mon -- 02:03 AM PST     -0.00 knots Slack
Mon -- 06:03 AM PST     -0.97 knots Max Ebb
Mon -- 07:11 AM PST     Sunrise
Mon -- 09:35 AM PST     0.00 knots Slack
Mon -- 12:53 PM PST     0.72 knots Max Flood
Mon -- 01:20 PM PST     Moonset
Mon -- 03:38 PM PST     -0.00 knots Slack
Mon -- 04:46 PM PST     Sunset
Mon -- 07:23 PM PST     -0.97 knots Max Ebb
Mon -- 10:40 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.30-0.4-0.7-0.9-1-0.9-0.7-0.30.20.50.70.70.60.3-0.2-0.5-0.8-1-0.9-0.7-0.30.1

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 (17,4,5,8)
      (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.