Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Mountain House, 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 6:25AMSunset 7:52PM Sunday August 20, 2017 4:51 AM PDT (11:51 UTC) Moonrise 4:10AMMoonset 6:20PM Illumination 3% Phase: Waning Crescent; Moon at 28 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- 220 Am Pdt Sun Aug 20 2017
.small craft advisory in effect from 1 pm pdt this afternoon through this evening...
Today..SW winds 10 to 20 kt...increasing to 15 to 25 kt in the afternoon. Patchy fog in the morning.
Tonight..SW winds 15 to 25 kt. Patchy fog after midnight.
Mon..SW winds 10 to 20 kt. Patchy fog in the morning.
Mon night..SW winds 15 to 25 kt. Patchy fog after midnight.
Tue..SW winds 10 to 20 kt. Patchy fog in the morning.
Wed..SW winds 10 kt.
Thu..SW winds 10 kt.
PZZ500 220 Am Pdt Sun Aug 20 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate northwesterly winds will continue over the northern outer waters through tonight as high pressure continues to build over the eastern pacific. Accompanying breezy winds will be locally steep wind waves before winds begin to decrease tonight.

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 201128
afdmtr
area forecast discussion
national weather service san francisco bay area
428 am pdt Sun aug 20 2017

Synopsis Cooling will continue early this week as an upper
trough of low pressure becomes nearly stationary over the eastern
pacific. Coastal areas will see little in the way of change with
continued night and morning low clouds and patchy fog.

Discussion As of 3:00 am pdt Sunday... A nearly stationary
upper level closed low will remain along the central coast through
early to mid week. Cooler temperatures will continue this week
with comfortable day time highs expected most places with only far
inland locations experiencing warm to hot temperatures. Wildfire
smoke from the pacific northwest began to mix into the air over
the bay area and central coast yesterday. Widespread low clouds
and fog over the coastal waters will be ushered inland this
morning on onshore breezes with returning low clouds and fog again
tonight and Monday morning. Cloud coverage mid-late Monday
morning will be challenging to predict much of it depending upon
the depth and strength of the marine layer, though of course, the
farther inland one is the better chances there are for clear skies
during the solar eclipse. Patchy high clouds are possible over
the area Monday as well. Medium range forecasts indicate some
strengthening of an upper level high over the desert southwest
and california.

Aviation As of 04:30 am pdt Sunday... For 12z tafs. MVFR to ifr
conditions at most airports as stratus continues to spread inland.

Expecting stratus to burn off late this morning. Westerly winds
this afternoon at around 15 kt.

Vicinity of ksfo... MVFR CIGS currently around the airport
expected to burn off late this morning around 18-19z.VFR
conditions this afternoon with westerly winds around 15 kt.

Sfo bridge approach... Similar to sfo.

Monterey bay terminals... Ifr CIGS at kmry and ksns. Expecting MVFR
toVFR conditions around 18-19z. Low CIGS should return again this
evening.

Marine As of 02:20 am pdt Sunday... Moderate northwesterly
winds will continue over the northern outer waters through tonight
as high pressure continues to build over the eastern pacific.

Accompanying breezy winds will be locally steep wind waves before
winds begin to decrease tonight.

Mtr watches warnings advisories
Tday Sca... Pt arena to pigeon pt 10-60 nm
sca... Pt pinos to pt piedras blancas 0-10 nm from 11 am
sca... Sf bay from 1 pm
public forecast: canepa
aviation: as
marine: as
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 mi52 min WNW 16 G 22 63°F 1009.4 hPa (-0.5)
PCOC1 - 9415144 - Port Chicago, CA 29 mi52 min WSW 14 G 18 61°F 69°F1010.6 hPa (-0.3)
MZXC1 - 9415102 - Martinez-Amorco CA 33 mi52 min W 9.9 G 13 61°F 68°F1011.1 hPa (-0.6)59°F
SFXC1 - San Francisco Bay Reserve, CA 35 mi67 min WNW 9.9 59°F 1010 hPa57°F
LNDC1 38 mi52 min W 4.1 G 6 62°F 1011.2 hPa (-0.6)
AAMC1 - 9414750 - Alameda, CA 39 mi52 min W 4.1 G 7 61°F 68°F1011.7 hPa (-0.6)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi52 min W 9.9 G 14 61°F 1010.8 hPa (-0.5)
OKXC1 - 9414776 - Oakland (Berth 34), CA 40 mi52 min WSW 7 G 8.9 61°F 1011.2 hPa (-0.6)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 40 mi52 min WSW 8.9 G 11
OBXC1 41 mi52 min 61°F 58°F
RTYC1 - 9414523 - Redwood City, CA 41 mi52 min WNW 2.9 G 4.1 63°F 73°F1010.6 hPa (-0.5)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 42 mi52 min SW 14 G 17 61°F 1011.3 hPa (-0.6)
PXSC1 44 mi52 min 61°F 58°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi52 min W 6 G 9.9 60°F 1010.2 hPa
RCMC1 - 9414863 - Richmond, CA 45 mi52 min SSW 11 G 14 61°F 64°F1011.1 hPa (-0.6)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 47 mi60 min ESE 7 59°F 1011 hPa (-1.0)
FTPC1 - 9414290 - San Francisco, CA 48 mi52 min WSW 8 G 12 59°F 60°F1011.7 hPa (-0.6)

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
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
3
AM
4
AM
Last
24hr
W13
G17
W14
G19
W16
W18
W15
G19
W19
W17
W18
W19
W19
W17
SW15
G19
SW14
G18
W16
W17
W12
W12
G15
W18
G24
W17
W19
W17
W14
G18
SW13
G17
W14
G18
1 day
ago
SW17
G23
SW15
G19
SW14
G18
SW12
G16
W16
W17
W17
W17
W17
W16
W15
W18
W17
W14
G19
SW15
G20
SW13
G17
W16
W18
W18
G23
W19
G24
W20
W21
W17
W13
G19
2 days
ago
SW13
G17
SW13
G17
W13
G16
W13
W15
W17
W16
W17
W16
W14
G17
W13
G17
W15
W17
SW13
G17
SW13
G17
SW14
G17
SW11
G14
W14
G17
W18
W19
W16
G20
W16
G21
W19
G23
W18
G22

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Livermore, Livermore Municipal Airport, CA16 mi59 minWNW 310.00 miA Few Clouds60°F57°F90%1010.4 hPa
Stockton, Stockton Metropolitan Airport, CA18 mi57 minN 49.00 miFair61°F57°F90%1009.7 hPa

Wind History from LVK (wind in knots)
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
3
AM
4
AM
Last 24hrNW6NW6N4CalmNW33CalmW8NW9NW9W11W14W14W12NW13NW15NW11NW9NW6NW9NW8NW7NW5NW3
1 day agoNW6NW7NW5NW5Calm3NW4SW65NW9W7W10W12NW11NW11NW9W9W8W10W5W7W8NW5NW6
2 days agoNW4NW4NW3W3SW3Calm3W8W9W11W11W14NW13W10W13W12W6W6W7NW7NW9NW6NW7NW8

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
Sun -- 05:10 AM PDT     Moonrise
Sun -- 05:26 AM PDT     3.63 feet High Tide
Sun -- 06:26 AM PDT     Sunrise
Sun -- 12:56 PM PDT     -0.20 feet Low Tide
Sun -- 07:08 PM PDT     2.93 feet High Tide
Sun -- 07:20 PM PDT     Moonset
Sun -- 07:52 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.422.73.33.63.63.22.61.81.10.5-0-0.200.61.42.12.72.92.82.31.81.3

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
Sun -- 02:35 AM PDT     0.72 knots Max Flood
Sun -- 05:09 AM PDT     Moonrise
Sun -- 05:52 AM PDT     -0.00 knots Slack
Sun -- 06:25 AM PDT     Sunrise
Sun -- 09:34 AM PDT     -0.63 knots Max Ebb
Sun -- 01:25 PM PDT     0.00 knots Slack
Sun -- 04:33 PM PDT     0.64 knots Max Flood
Sun -- 07:19 PM PDT     Moonset
Sun -- 07:45 PM PDT     -0.00 knots Slack
Sun -- 07:51 PM PDT     Sunset
Sun -- 10:17 PM PDT     -0.33 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.50.70.70.60.3-0-0.3-0.5-0.6-0.6-0.5-0.4-0.10.20.50.60.60.50.2-0.1-0.2-0.3-0.3

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 San Francisco/Monterey Bay Area, CA (7,2,3,4)
      (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.