Sunday, May26, 2019 L-36.com


Marine Weather and Tides
Plymouth, 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 5:42AMSunset 8:19PM Sunday May 26, 2019 1:04 AM PDT (08:04 UTC) Moonrise 12:55AMMoonset 11:45AM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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- 854 Pm Pdt Sat May 25 2019
.small craft advisory in effect through Sunday afternoon...
Tonight..W winds 15 to 25 kt with gusts up to 30 kt.
Sun..W winds 15 to 25 kt with gusts up to 35 kt. A chance of rain.
Sun night..W winds 5 to 15 kt.
Memorial day..SW winds 10 to 20 kt with gusts up to 25 kt.
Mon night..SW winds 10 to 20 kt with gusts up to 25 kt.
Tue..SW winds 10 to 20 kt with gusts up to 25 kt.
Wed..SW winds 5 to 15 kt.
PZZ500 854 Pm Pdt Sat May 25 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty northwest winds will continue through the night and into Sunday, with gale-force winds over the northern outer waters tonight. Scattered showers and isolated Thunderstorms are possible beginning early Sunday morning. Moderate northwest swell will continue through the weekend with steep choppy seas generated by the gusty winds.


7 Day Forecast for Marine Location Near Plymouth, CA
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location: 38.48, -120.84     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 252118
afdsto
area forecast discussion
national weather service sacramento ca
218 pm pdt Sat may 25 2019

Synopsis
Showers and thunderstorms remain in the forecast for the rest of
today, especially over the higher terrain. These conditions will
become more widespread late this evening into Sunday night with
snow being forecast for the higher sierra elevations. Afternoon
mountain showers or thunderstorms continue through next week, with
our high temperatures returning to near normal by Tuesday.

Discussion
Water vapor satellite imagery this afternoon shows a broad trough
sitting over the western us which has resulted in mountain showers
developing over the sierra. Shower activity is expected to become
scattered to widespread later today with the possibility of some
thunderstorm activity as well. Href guidance this afternoon shows
evening and overnight convection, with the bulls eye being
painted over the northern portion of the valley. We'll be keeping
an eye out for heavy showers and the potential for strong
thunderstorms.

As the night progresses, an upper low will drop down the coast and
arrive over northern ca Sunday morning. This system will bring
widespread showers to the region, with thunderstorms being
possible for the southern portion of the valley, and the foothills
and mountains. The storm will also bring cooler air to the region,
resulting in unseasonably cool temperatures and snow levels
falling to around 6000 feet. A winter weather advisory has been
issued for elevations above 6000 feet as this storm is expected
to bring travel impacts such as slippery roads, reduced
visibility, and chain controls to the sierra this holiday
weekend. Between i-80 and hwy 50, elevations above 6000 feet could
see 2-5 inches of snow while hwy 88 could see 6-12 inches at pass
level. If traveling this weekend, make sure to the check the
forecast and road conditions before heading out.

As the low exits the region on Monday, showers will become more
isolated and scattered in nature. Our high temperatures will start
to increase as well, with more seasonal temps returning for
Tuesday and the rest of the week.

The combination of instability and moisture should result in
another round of convection today, with ensemble probabilities
indicating the best chances over higher terrain. Localized heavy
downpours, gusty winds, and small hail could be possible with
stronger storms.

A deeper upper low is expected to bring better chances for
showers and thunderstorms late this evening into Sunday. There is
some indication that hourly rainfall rates could approach or
exceed 0.5 inches in the vicinity of the camp fire burn scar this
evening, so will continue to monitor for debris flow potential.

Snow levels will likely drop to below pass levels as colder air
moves in, which will likely bring travel impacts to the sierra.

Thus, mountain travel impacts are possible early Sunday into early
Monday, with possible travel delays and chain controls.

Accumulations of 6 to 12 inches of snow can be expected at pass
levels through early Monday; higher amounts possible south of hwy
50. Temperatures will be as much as 10 to 20 degrees below normal
this weekend.

Looking into early next week, the upper low shifts eastward into
the great basin, with precipitation chances expected to remain over
higher terrain. Guidance promotes thunderstorm development each
afternoon into the early evening hours. Temperatures will
gradually warm up early next week, but will remain several degrees
below normal on Monday; slightly below or near average by
Tuesday.

.Extended discussion (Wednesday through Saturday)
long wave trough remains near 120w through the extended period
with mainly weak to moderate short waves tracking through. This
will keep an unsettled weather pattern. Threat of showers and
afternoon thunderstorms will be possible. Best chances will be
over the foothills and mountains and north of ksts-kmyv line in
the central valley. High temperatures expected to be near normal
for late may.

Aviation
Lcl MVFR conds til abt 04z, then areas MVFR ifr conds ovr intr
norcal as nxt pac stm movs into fcst area. Isold TSTM poss omtns
with LCL lifr conds obsrg trrn. Sn lvls lwrg to arnd 060 Sun mrng.

Areas sly sfc wnd gsts to 25 kts in cntrl vly aft 08z. AWW in
effect at ksck for sust wly wnd gtr 24 kts btwn 09z-17z sun.

Sto watches warnings advisories
Winter weather advisory from 5 am Sunday to 5 am pdt Monday for
west slope northern sierra nevada.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 66 mi79 min SW 11 55°F 1006 hPa48°F
PCOC1 - 9415144 - Port Chicago, CA 70 mi34 min SSW 11 G 18 56°F 63°F1006.3 hPa
AAMC1 - 9414750 - Alameda, CA 92 mi40 min W 14 G 19 56°F 64°F1008.7 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from MHR (wind in knots)
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Last 24hrSW10SW10S5S6------SW9S7S7S5S6S7S7SE6
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1 day agoE9SE6S5E5S5----S6S6S6S5SE8S6S7SW8SW7S8SW9SW8S9S8S6SE6
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2 days agoNW6NW5NE3NE5Calm----NE5S4E6--SE7SE10
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Tide / Current Tables for Clarksburg, Sacramento River, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Sun -- 01:26 AM PDT     2.37 feet High Tide
Sun -- 01:57 AM PDT     Moonrise
Sun -- 05:46 AM PDT     Sunrise
Sun -- 07:53 AM PDT     0.78 feet Low Tide
Sun -- 09:34 AM PDT     Last Quarter
Sun -- 11:38 AM PDT     2.04 feet High Tide
Sun -- 12:48 PM PDT     Moonset
Sun -- 08:19 PM PDT     0.04 feet Low Tide
Sun -- 08:19 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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22.32.32.11.71.41.10.80.81.11.6221.91.71.410.70.40.20.10.10.51.1

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 (4,6,7,8)
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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.