Sunday, December16, 2018 L-36.com


Marine Weather and Tides
Isleton, 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 7:15AMSunset 4:50PM Sunday December 16, 2018 6:17 PM PST (02:17 UTC) Moonrise 1:13PMMoonset 12:39AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 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- 229 Pm Pst Sun Dec 16 2018
.small craft advisory in effect until 6 pm pst this evening...
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt...becoming W 5 to 10 kt after midnight. Showers and a slight chance of Thunderstorms this evening, then a chance of showers after midnight.
Mon..S winds up to 10 kt.
Mon night..NW winds up to 10 kt.
Tue..SW winds 5 to 10 kt.
Tue night..W winds 5 to 10 kt.
Wed..N winds 5 to 10 kt.
Wed night..NE winds up to 10 kt.
Thu..SW winds around 5 kt.
Fri..NW winds around 5 kt. Winds and wind waves higher in and near Thunderstorms.
PZZ500 229 Pm Pst Sun Dec 16 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Strong and gusty southerly winds associated with a frontal system moving through the coastal waters will result in steep fresh swell and hazardous sea conditions through this evening. Winds will then diminish in wake of the frontal passage tonight. A very large, long period wnw swell will continue to move into the coastal waters, with significantly building seas by this evening through Monday morning. The swell will taper off late Monday into Tuesday, however, a different large northwest swell train builds Wednesday into Thursday.


7 Day Forecast for Marine Location Near Isleton, CA
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location: 38.13, -121.58     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 162146
afdsto
area forecast discussion
national weather service sacramento ca
146 pm pst Sun dec 16 2018

Synopsis
A moderate storm system will track over norcal into Monday
causing hazardous travel conditions over the mountains. Drier
weather returns for much of the area this week with the exception
of the far northern areas which will have a chance of showers
into early Wednesday.

Discussion
The weather system is moving through the coastal range this
afternoon with some showers light rain out ahead of the front.

As the front moves closer to the interior upslope areas will
start to get enhanced precipitation. The front will move through
the sacramento area during the late afternoon and evening hours.

Snowfall will be increasing near major pass levels at this time
but remain fairly high through most of the evening hours.

Have ended the advisory for the western plumas county lassen park
and the winter storm warning for the west slopes northern sierra
nevada a couple of hours earlier due to the slightly faster pace
of the storm and amounts dropping off rapidly in the morning.

Snow levels will stay high enough over the far north to lower
snowfall totals over the populated areas roads traveled though
lassen peak could see up to 2 feet of snow. The snow levels
further south look to be near pass level this afternoon into the
early evening before lowering towards midnight and in the late
night hours. The higher totals will be above 6500 to 7000 feet
where up to a foot of snowfall could accumulate below pass levels.

The heaviest snowfall looks to occur from mid to late evening
trough 6 am Monday morning gradually tapering from north to south
after 1 am.

Breezy conditions are likely as the front moves through for most
of the area outside of the crest which will be its normal windy
conditions for winter storms probably in the 50 to 75 mph range
over the peaks.

For the valley a half inch to around an inch and a half of
rainfall can be expected with the highest totals over the north
end of the valley tapering to lowest in the northern san joaquin
valley. As the front moves through the interior rainfall rates
might be sufficient enough for some water buildup of areas with
poor drainage and locations that may get clogged by leaves.

The main part of the system clears the region early Monday
morning with some residual showers lingering mainly over the
mountains during the day before ending in the southern forecast
area. Winds become light in the morning south of sacramento and
with the recent rain some patches of fog forming will be possible
in the morning.

Weak ridging tries to build but the tail end of a system
moving into the pacific northwest will pass through the far
northern part of the state to keep some chances of precipitation
going through Tuesday night.(mainly north of chico in the valley
and well north of i-80 for the mountains) and along the northern
coastal range. To the south expect to stay dry.

Light northerly winds develop on Wednesday as a ridge of high
pressure builds over the region with dry conditions expected
throughout the cwa. Some morning patches of fog will be
possible... Mainly south of sacramento.

.Extended discussion (Thursday through Sunday)
an upper level ridge remains over norcal Thursday before a weak
weather system moves in Thursday night through Friday.

Precipitation with this system would mainly be limited to the
sacramento valley and the mountains. Current forecast liquid
precipitation amounts are fairly low, with less than an inch
expected over the mountains. However, forecast confidence is still
low with this system at this time. Isolated showers could linger
in the far north Saturday. Elsewhere will remain dry. Models bring
another weather system into norcal Sunday, though timing and
intensity of the storm are very uncertain at this time. Hec

Aviation
Pacific frontal system moves through norcal this afternoon and
tonight. Widespread MVFR ifr conditions will continue north of
kmyv through 18z Monday. Elsewhere,VFR conditions expected to
predominate through 22z with local MVFR visibilities in the
central valley until 18z Monday. Southerly wind gusts 20-30 kts
possible at TAF sites this afternoon and evening as the front
moves south.

Sto watches warnings advisories
Winter weather advisory until 6 am pst Monday for western plumas
county lassen park.

Winter storm warning until 10 am pst Monday for west slope
northern sierra nevada.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 17 mi29 min SE 9.9 G 12 54°F 1016.3 hPa
SFXC1 - San Francisco Bay Reserve, CA 24 mi92 min SSE 1.9 53°F 1016 hPa51°F
PCOC1 - 9415144 - Port Chicago, CA 25 mi35 min SSE 12 G 16 57°F 53°F1015.7 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 30 mi35 min S 15 G 19 58°F 54°F1015.5 hPa58°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 37 mi29 min SSW 9.9 G 13 60°F 1015.6 hPa
LNDC1 44 mi29 min SE 8 G 12 57°F 1016.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 44 mi29 min ESE 13 G 16 58°F 1016.5 hPa
AAMC1 - 9414750 - Alameda, CA 45 mi35 min ESE 12 G 14 56°F 55°F1016.5 hPa
RCMC1 - 9414863 - Richmond, CA 46 mi29 min 56°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi29 min SE 8 G 11 56°F 1016.3 hPa
OBXC1 46 mi29 min 56°F 56°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi35 min SE 12 G 15
TIBC1 - Tiburon Pier, San Francisco Bay, CA 49 mi36 min SSE 9.9 56°F 1016 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 49 mi29 min SSE 8.9 G 12 56°F 1015.1 hPa
PXSC1 49 mi35 min 57°F 57°F

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fairfield / Travis Air Force Base, CA21 mi79 minSE 74.00 miLight Rain Fog/Mist52°F50°F93%1017.3 hPa
Stockton, Stockton Metropolitan Airport, CA23 mi22 minSE 73.00 miLight Rain Fog/Mist54°F51°F90%1017.5 hPa

Wind History from SUU (wind in knots)
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Last 24hrCalmN3N5CalmCalmCalmCalmE6CalmE4CalmCalmCalmCalmCalmSE3CalmSE3E7E6E9SE6SE7E5
1 day agoW7W9SW10SW4CalmCalmSE4SE3CalmCalmCalmNW5N5N3N5N4N4--NE6E4CalmCalmCalmCalm
2 days agoN7CalmE7NE5N7N9N11N11NE7N9NE6N3NE4SW3NE4S5S6SW6S4S12SW10
G18
SW9S8S6

Tide / Current Tables for Georgiana Slough entrance, Mokelumne River, California
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Georgiana Slough entrance
Click for Map
Sun -- 12:40 AM PST     Moonset
Sun -- 05:51 AM PST     0.29 feet Low Tide
Sun -- 07:16 AM PST     Sunrise
Sun -- 12:39 PM PST     2.80 feet High Tide
Sun -- 01:13 PM PST     Moonrise
Sun -- 04:47 PM PST     Sunset
Sun -- 07:22 PM PST     0.64 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.11.91.510.60.40.30.40.81.422.52.72.82.62.11.61.20.80.70.711.41.8

Tide / Current Tables for West Island Lt .5 mi SE, San Joaquin River, California Current
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West Island Lt .5 mi SE
Click for Map
Sun -- 12:40 AM PST     Moonset
Sun -- 02:37 AM PST     -0.66 knots Max Ebb
Sun -- 06:13 AM PST     0.00 knots Slack
Sun -- 07:16 AM PST     Sunrise
Sun -- 09:21 AM PST     0.46 knots Max Flood
Sun -- 12:38 PM PST     -0.00 knots Slack
Sun -- 01:13 PM PST     Moonrise
Sun -- 04:00 PM PST     -0.62 knots Max Ebb
Sun -- 04:48 PM PST     Sunset
Sun -- 07:29 PM PST     0.00 knots Slack
Sun -- 10:04 PM PST     0.26 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.2-0.5-0.6-0.7-0.6-0.4-0.10.20.40.50.40.30.2-0.1-0.4-0.6-0.6-0.6-0.4-0.10.10.20.30.2

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (21,6,7,8)
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Ground Weather Radar Station Sacramento, CA
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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.