Sunday, May19, 2019 L-36.com


Marine Weather and Tides
August, 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 5:50AMSunset 8:13PM Sunday May 19, 2019 3:19 AM PDT (10:19 UTC) Moonrise 8:17PMMoonset 5:41AM Illumination 100% Phase: Full Moon; Moon at 15 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- 212 Am Pdt Sun May 19 2019
.small craft advisory in effect until noon pdt today...
Today..SW winds 15 to 25 kt with gusts up to 30 kt...diminishing to 5 to 15 kt this afternoon. Showers and a slight chance of Thunderstorms.
Tonight..NW winds up to 10 kt.
Mon..W winds 10 to 20 kt with gusts up to 30 kt.
Mon night..SW winds 10 to 20 kt with gusts up to 25 kt. Rain likely.
Tue..W winds 15 to 20 kt with gusts up to 30 kt. A chance of rain.
Tue night..NW winds 10 to 20 kt with gusts up to 25 kt.
Wed..NW winds 5 to 15 kt.
Thu..W winds 5 to 15 kt. Winds and wind waves higher in and near Thunderstorms.
PZZ500 212 Am Pdt Sun May 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A low pressure system will move into the northern california waters early today bringing showers and a slight chance of Thunderstorms into late this morning. Moderate southerly winds will continue to gradually shift out of the west. SWells will build across the waters today creating hazardous conditions, particularly for smaller vessels. West to northwest winds will increase across the waters into Tuesday as another system passes by to the north.


7 Day Forecast for Marine Location Near August, CA
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location: 37.95, -121.28     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 190941
afdsto
area forecast discussion
national weather service sacramento ca
241 am pdt Sun may 19 2019

Synopsis
Rain and mountain snow continue today with sierra cascade travel
impacts expected through early Monday morning. Thunderstorms are
possible this afternoon. Another system will impact northern
california Monday night into Tuesday bringing more rain and
mountain snow. Cool temperatures continue through most of the
week.

Discussion
An upper low resides just west of the northern california coast
early this morning, with widespread precipitation seen ahead of this
feature. Conditions are beginning to deteriorate in the sierra with
snow levels expected to drop near 5kft by early this morning. This
low will continue to track southeast, moving over central california
by late afternoon. Accumulations of 6 to 12 inches can still be
expected through early Monday morning, with the heaviest snow this
morning and rates decreasing as this system moves out of the area.

For the valley, convective models indicate shower and thunderstorm
initiation by late morning with ensemble probabilities signaling the
best chances along and south of i-80 where the strongest
instability resides. Shear will be weak as the low moves overhead
and the main hazards with any scattered or clustered storms will
be heavy localized rain, small hail, and lightning. There is some
indication rate rates may be near or exceed a half an inch an
hour, especially in the late morning and early afternoon with
storms.

This system will move out of the area by early Monday, but only a
brief dry period will be seen before another system tracks over
norcal Monday night through Tuesday night. Snow levels, once again,
look to be near pass level with snow accumulations around 5-10
inches. Travel impacts should be anticipated, especially Tuesday
morning into the evening hours when the heaviest precipitation is
expected over the sierra. Thunderstorms may also be possible again
Tuesday in the valley.

.Extended discussion (Thursday through Sunday)
ensemble guidance continues to feature a broad upper level trough
across the region later in the week, continuing the threat for
mainly mountain showers and below average temperatures. Models
still vary in the details, so have continued to lean on the nbm
and ensembles for precipitation chances and amounts.

Aviation
Widespread MVFR conditions, locally ifr, next 24 hours as a
weather system continues to move across interior norcal. Areas of
southerly wind gusts 20-25 kts about 18z. Scattered thunderstorms
possible 15z-00z Monday.

Sto watches warnings advisories
Winter storm warning until 5 am pdt Monday for west slope
northern sierra nevada-western plumas county lassen park.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 33 mi31 min SW 4.1 G 7 54°F 1006.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 41 mi31 min SW 2.9 G 5.1 53°F 63°F1006.9 hPa
SFXC1 - San Francisco Bay Reserve, CA 43 mi94 min SW 7 54°F 1007 hPa51°F
MZXC1 - 9415102 - Martinez-Amorco CA 45 mi31 min SW 7 G 8 54°F 62°F1006.8 hPa54°F
UPBC1 45 mi31 min WSW 12 G 14
AAMC1 - 9414750 - Alameda, CA 55 mi37 min WSW 8 G 8.9 56°F 60°F1007.8 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA3 mi24 minS 1010.00 miOvercast55°F52°F90%1007.2 hPa

Wind History from SCK (wind in knots)
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Last 24hrCalmNW3W3CalmE4S4SE8S9S7W10NW10NW5CalmCalmSE8SE10S11SE10S12SE13SE7S10SE15
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2 days agoW6CalmW4N5W10SW8S9CalmS7SW6SW12W15W15W11W13SW10W10SW9SW8W9SW5W8SW6SW5

Tide / Current Tables for Blackslough Landing, San Joaquin River, California
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Blackslough Landing
Click for Map
Sun -- 12:47 AM PDT     0.76 feet Low Tide
Sun -- 05:52 AM PDT     Sunrise
Sun -- 06:22 AM PDT     4.00 feet High Tide
Sun -- 06:40 AM PDT     Moonset
Sun -- 02:09 PM PDT     -0.43 feet Low Tide
Sun -- 08:04 PM PDT     3.01 feet High Tide
Sun -- 08:12 PM PDT     Sunset
Sun -- 09:17 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.81.11.92.83.643.93.52.81.91.10.4-0.2-0.4-0.20.41.32.12.832.82.31.8

Tide / Current Tables for Vulcan Island .5 mi E, San Joaquin River, California Current
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Vulcan Island .5 mi E
Click for Map
Sun -- 01:19 AM PDT     0.00 knots Slack
Sun -- 04:02 AM PDT     0.75 knots Max Flood
Sun -- 05:52 AM PDT     Sunrise
Sun -- 06:40 AM PDT     Moonset
Sun -- 07:27 AM PDT     -0.00 knots Slack
Sun -- 11:15 AM PDT     -0.61 knots Max Ebb
Sun -- 03:01 PM PDT     0.01 knots Slack
Sun -- 05:58 PM PDT     0.60 knots Max Flood
Sun -- 08:12 PM PDT     Sunset
Sun -- 09:10 PM PDT     -0.00 knots Slack
Sun -- 09:17 PM PDT     Moonrise
Sun -- 11:30 PM PDT     -0.28 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.10.30.60.70.70.50.2-0.1-0.4-0.6-0.6-0.6-0.5-0.3-00.30.50.60.50.30-0.2-0.3

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (6,6,7,8)
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Ground Weather Radar Station Sacramento, CA
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weather_mapweather_map weather_map

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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.