Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Mountain House, 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 7:14AMSunset 5:20PM Wednesday January 23, 2019 9:44 AM PST (17:44 UTC) Moonrise 8:38PMMoonset 9:18AM Illumination 92% Phase: Waning Gibbous; Moon at 18 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 The San Francisco Bay North Of The Bay Bridge- 828 Am Pst Wed Jan 23 2019
Today..NE winds up to 10 kt...becoming north this afternoon.
Tonight..N winds up to 10 kt.
Thu..SE winds 5 to 15 kt.
Thu night..NE winds 5 to 10 kt.
Fri..NE winds 5 to 15 kt.
Fri night..N winds 5 to 15 kt.
Sat..NE winds up to 10 kt.
Sun..N winds around 5 kt.
PZZ500 828 Am Pst Wed Jan 23 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the eastern pacific will generate moderate to locally gusty northerly winds across the coastal waters through much of the week. A series of small to moderate northwest swells are forecast throughout the week.


7 Day Forecast for Marine Location Near Mountain House, CA
   Hourly   EDIT   Help
location: 37.83, -121.57     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 231717
afdmtr
area forecast discussion
national weather service san francisco bay area
917 am pst Wed jan 23 2019

Synopsis Building high pressure along the west coast will
result in a gradual warming trend through Saturday, along with
mainly clear skies. The dry weather pattern will likely last
through the end of the month, with a continuation of seasonably
mild days and cool nights.

Discussion As of 09:06 am pst Wednesday... The ongoing forecast
in the short-term remains on track and no updates are anticipated
at this time. Please see the previous forecast discussion for
additional details.

Prev discussion As of 2:42 am pst Wednesday... Upper level high
pressure continues to build off the west coast. Latest overnight
satellite imagery shows a few high clouds spilling over the
periphery of the ridge. Despite a few high clouds spilling into
far norcal, much of the bay area is mostly clear. Clear skies and
relatively light winds will lead to a chilly morning. For what
it's worth the latest 24 hour trend does indicate many locations
are currently running cooler than 24 hours ago - mid 30s to 40s.

Given the clear skies and light winds temperatures are likely to
drop a few more degrees through shortly after sunrise patchy frost
is possible.

The upper level ridge is forecast to remain over the region and
ultimately strengthen moving inland this weekend. There is a
brief ripple late in the week with a weak inside slider, but the
next result locally is offshore flow. Therefore, the rest of the
work week and next weekend will be rather quiet weather wise.

Clear skies and dry conditions will prevail. Temperatures will
gradually warm through the period and peak Friday-Sunday with
periods offshore flow. Temperatures will warmer to above seasonal
levels with highs in the 60s and 70s. Overnight lows on the other
hand will remain cool to chilly with clear skies and light winds.

The question is, when will it rain next? The 00z operational runs
of both the ECMWF and GFS keep the bay area dry through 240 hours
(feb 1). However, some of the ensemble guidance gives a 25% chance
of 0.01" at ksfo around feb 1 or 2. Needless to say the extended
forecast will need some watching, but confidence does seem pretty
high that the region will remain dry through then end of january.

Aviation As of 9:18 am pst Wednesday... For 18z tafs. High
pressure will maintain mainly clear skies across area terminals
with the exception of a few high clouds. Generally light winds
will prevail through the forecast period.

Vicinity of ksfo...VFR conditions will prevail through the period
with only a few high clouds expected. Light to locally variable winds
will persist.

Sfo bridge approach... Similar to sfo.

Monterey bay terminals...VFR conditions and light winds will
prevail through the period.

Marine As of 8:28 am pst Wednesday... High pressure over the
eastern pacific will generate moderate to locally gusty northerly
winds across the coastal waters through much of the week. A series
of small to moderate northwest swells are forecast throughout the
week.

Mtr watches warnings advisories
Tday Sca... Pt arena to pigeon pt 10-60 nm from 3 pm
sca... Pt arena to pt reyes 0-10 nm from 1 pm
sca... Pt pinos to pt piedras blancas 0-10 nm from 1 pm
public forecast: rgass
aviation: sims
marine: sims
visit us at

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 22 mi44 min NNW 1.9 G 2.9 45°F 1031.7 hPa (+1.1)
PCOC1 - 9415144 - Port Chicago, CA 29 mi44 min NE 4.1 G 4.1 44°F 51°F1031.8 hPa (+1.0)
MZXC1 - 9415102 - Martinez-Amorco CA 33 mi44 min ENE 1.9 G 2.9 46°F 51°F1031.8 hPa (+1.1)46°F
SFXC1 - San Francisco Bay Reserve, CA 35 mi119 min E 4.1 37°F 1031 hPa35°F
LNDC1 38 mi44 min SSE 1 G 1.9 49°F 1031 hPa (+0.8)
AAMC1 - 9414750 - Alameda, CA 39 mi44 min E 2.9 G 4.1 48°F 54°F1031.3 hPa (+0.7)
OKXC1 - 9414776 - Oakland (Berth 34), CA 40 mi44 min N 4.1 G 5.1 47°F 1031.1 hPa (+0.8)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 40 mi44 min N 5.1 G 5.1
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi44 min E 9.9 G 11 47°F 1031.2 hPa (+0.9)
OBXC1 41 mi44 min 48°F 41°F
RTYC1 - 9414523 - Redwood City, CA 41 mi44 min E 1 G 1.9 48°F 54°F1031.5 hPa (+1.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 42 mi44 min N 7 G 8.9 48°F 1031.4 hPa (+0.8)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi44 min NNW 6 G 8 47°F 1030.2 hPa (+0.9)
PXSC1 44 mi62 min 48°F 45°F
RCMC1 - 9414863 - Richmond, CA 45 mi44 min NNW 8 G 9.9 46°F 54°F1031 hPa (+0.8)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 47 mi39 min NNW 5.1 47°F 1032 hPa
FTPC1 - 9414290 - San Francisco, CA 48 mi44 min NE 5.1 G 8 49°F 54°F1031.3 hPa (+0.9)

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
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
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last
24hr
S3
S4
G7
NW1
NE5
NE3
NE1
NW2
E4
E5
NE1
NE2
--
N1
SW1
NE4
S5
S7
S5
S3
SW1
S4
S2
NE4
NE4
1 day
ago
W11
G15
W9
W9
W8
W6
W5
W5
W4
--
W3
SW4
SW3
G7
S5
SW3
G7
SW3
G6
S4
S6
S3
S6
S6
S6
S6
S8
SW2
G6
2 days
ago
S8
G11
S8
G15
SW15
SW16
W13
G16
SW13
G20
SW15
W11
G16
W18
G24
W15
G21
SW7
G12
SW19
G25
SW5
G9
SW5
SW9
G13
W12
G15
W13
G17
W17
SW6
G11
SW7
SW9
G13
W16
W11
G14
W13
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Livermore, Livermore Municipal Airport, CA16 mi51 minN 010.00 miFair41°F35°F79%1031.3 hPa
Stockton, Stockton Metropolitan Airport, CA18 mi49 minN 06.00 miFog/Mist45°F41°F86%1031.1 hPa

Wind History from LVK (wind in knots)
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
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last 24hrNE5NE12E9E9--NE10NE10NE7NE7E4E3E3NE4CalmCalmE3E3CalmE3CalmE3CalmE5Calm
1 day agoNW6SW3SW6SW6W5SW3N9NW4NW3SE3E4NE5CalmCalmCalmNW34CalmSE5SE6CalmSE5E6E8
2 days agoSW7SW8SW7W14W12W15W13W12W18
G25
W11
G21
SW4SW11W11W7CalmSW9W12S8SW9W8SW7CalmW5W6

Tide / Current Tables for Borden Highway Bridge, Old 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
Wed -- 02:25 AM PST     -0.39 feet Low Tide
Wed -- 07:17 AM PST     Sunrise
Wed -- 08:52 AM PST     2.93 feet High Tide
Wed -- 09:17 AM PST     Moonset
Wed -- 02:13 PM PST     0.93 feet Low Tide
Wed -- 05:19 PM PST     Sunset
Wed -- 07:51 PM PST     3.57 feet High Tide
Wed -- 08:38 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.6-0-0.4-0.30.10.91.72.42.82.92.72.21.61.20.911.52.233.43.63.32.82

Tide / Current Tables for Vulcan Island .5 mi E, San Joaquin River, California Current
   EDIT      (on/off)   Help   One Week of Data
Vulcan Island .5 mi E
Click for Map
Wed -- 02:54 AM PST     0.01 knots Slack
Wed -- 05:54 AM PST     0.67 knots Max Flood
Wed -- 07:16 AM PST     Sunrise
Wed -- 09:17 AM PST     Moonset
Wed -- 09:30 AM PST     -0.00 knots Slack
Wed -- 11:54 AM PST     -0.31 knots Max Ebb
Wed -- 02:27 PM PST     0.00 knots Slack
Wed -- 05:08 PM PST     0.73 knots Max Flood
Wed -- 05:18 PM PST     Sunset
Wed -- 08:20 PM PST     -0.01 knots Slack
Wed -- 08:37 PM PST     Moonrise
Wed -- 11:41 PM PST     -0.68 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-0.6-0.5-0.300.40.60.70.60.40.1-0.1-0.3-0.3-0.3-0.10.20.60.70.70.40.1-0.2-0.5-0.6

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (12,3,4,5)
      (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.