Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Coloma, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:54AMSunset 7:23PM Sunday March 26, 2017 11:50 AM PDT (18:50 UTC) Moonrise 5:18AMMoonset 5:04PM Illumination 1% Phase: Waning Crescent; Moon at 29 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 902 Am Pdt Sun Mar 26 2017
.small craft advisory in effect from Monday morning through Monday afternoon...
Today..SE winds 5 kt. Slight chance of rain.
Tonight..W winds 5 to 15 kt. Rain likely in the evening, then chance of showers after midnight.
Mon..NW winds 15 to 25 kt.
Mon night..NW winds 15 to 25 kt.
Tue..NW winds 10 to 20 kt.
Wed..W winds 5 to 15 kt.
Thu..NW winds 15 to 25 kt.
PZZ500 902 Am Pdt Sun Mar 26 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light winds and moderate seas expected across the waters through most of today. Northwest winds will increase over the waters by Monday as high pressure builds over the eastern pacific.

7 Day Forecast for Marine Location Near Coloma, CA
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location: 38.81, -120.92     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 261744
afdsto
area forecast discussion
national weather service sacramento ca
1044 am pdt Sun mar 26 2017

Synopsis
Pacific storm moves through today into Monday bringing
some rain and mountain snow. Drier Tuesday followed by a threat
of another storm midweek.

Discussion
Some light amounts of precipitation are spreading across the
interior this morning. Other than the far north end of the valley
the rest of the valley will just see some sprinkles to maybe a few
light showers during the day. Snow levels ranging between 4500 to
5500 feet and are not expected to fluctuate that much from that
range during the day. Only light amounts of snow may accumulate
during the day today.

Previous discussion
Pacific frontal system is approaching and will move through
interior norcal today into Monday. Models have slowed onset of
precipitation across the CWA with northern and western portions
seeing the best chances today. Bulk of precip modeled to move
across the CWA tonight with showers Monday, mainly over the
mountains. Storm total QPF amounts look to be less than half an
inch in the central valley with around half an inch to inch for
the foothills and mountains. Snow levels forecast to be around
4000 feet over the shasta mountains, 4500 feet over western
plumas/lassen park, and 5500 feet over the trans-sierra passes
tonight during the peak precip period. Snow turns to snow showers
Monday morning as snow levels drop another 500 to 1000 feet. Snow
totals at this time appear to be upwards of around 3 to 6 inches
with locally up to a foot over the highest terrain. Have issued
a winter weather advisory to cover this. Lighter snow amounts
possible over the higher terrain of shasta county and the coastal
range over the next 24 hours. Some breezy conditions possible
this afternoon into evening but wind speeds remain below advisory
criteria.

Increasing subsidence over the area Monday night into Tuesday as
upper level ridging in epac pushes inland. Surface high also
builds inland across oregon into the great basin. This will
increase the low level n-s pressure gradient over interior norcal.

Tightened surface gradient along with momentum transfer from
stronger winds aloft will result in some breezy northerly wind
over the CWA Monday night and Tuesday. Above normal temperatures
expected Tuesday with highs in the lower 70s for the central
valley with 50s to 60s for the mountains and foothills.

Models suggest ridging shifts east Wednesday as next pacific storm
begins to spread some generally light precip north of a kuki-kove-
krts line during the day. Precip threat increases over most of
the forecast area Wednesday night into Thursday.

Pch
.Extended discussion (Thursday through Sunday)
a fast moving clipper system is forecast to brush through the
region Thursday bringing a chance of showers, mainly to the
mountains. Impacts are expected to be minimal. Ridging from the
eastern pacific will then build into norcal for the remainder of
the week resulting in dry and milder weather along with locally
gusty north to northeast wind.

Aviation
Weather system moves through norcal over the next 24 hours.

Showers currently affecting krdd and krbl will spread to other
valley TAF sites by 0z Monday, ending by 12z Monday. TAF sites
expected to remainVFR with local MVFR possible vicinity showers.

Local southerly winds 10-15 kts 18z- 02z Monday.

Sto watches/warnings/advisories
Winter weather advisory from 5 pm this afternoon to 5 am pdt
Monday for western plumas county/lassen park.

Winter weather advisory from 8 pm this evening to 8 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 72 mi66 min W 2.9 55°F 1020 hPa49°F
PCOC1 - 9415144 - Port Chicago, CA 79 mi51 min S 6 G 7 56°F 56°F1020.2 hPa (+1.4)
RCMC1 - 9414863 - Richmond, CA 100 mi51 min SSE 5.1 G 8 56°F 57°F1019.7 hPa (+1.0)

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Auburn Municipal Airport, CA13 mi56 minSE 910.00 miA Few Clouds52°F41°F67%1020.7 hPa
Lincoln Regional Karl Harder Field, CA24 mi56 minSSE 910.00 miPartly Cloudy55°F42°F63%1020.3 hPa

Wind History from AUN (wind in knots)
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Last 24hrW6SW4W8W5SW5W7W5CalmCalmE3CalmE4CalmE4SE6E5E7SE7SE5CalmSE6SE7SE6SE10
1 day agoSE11SE7SE15
G21
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SE8SE7SE6SE5SE5SE5SE4S3E6E6E6CalmE3N3CalmE3E4CalmW6
2 days agoW3W6W5SW7SW6SW7S9S5SE5SE4SE3CalmCalmS3SE3SE4CalmSE6SE8SE6SE7SE11
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Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Sun -- 02:20 AM PDT     0.06 feet Low Tide
Sun -- 06:19 AM PDT     Moonrise
Sun -- 06:59 AM PDT     Sunrise
Sun -- 07:06 AM PDT     2.72 feet High Tide
Sun -- 02:30 PM PDT     0.39 feet Low Tide
Sun -- 06:06 PM PDT     Moonset
Sun -- 06:46 PM PDT     2.87 feet High Tide
Sun -- 07:24 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.20.10.20.81.72.42.72.62.31.91.40.90.60.40.51.122.72.92.72.31.81.3

Tide / Current Tables for Sacramento, Sacramento River, California
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Sacramento
Click for MapNote: These data apply only during low river stages.

Sun -- 02:19 AM PDT     0.07 feet Low Tide
Sun -- 06:19 AM PDT     Moonrise
Sun -- 06:59 AM PDT     Sunrise
Sun -- 07:06 AM PDT     2.73 feet High Tide
Sun -- 02:30 PM PDT     0.40 feet Low Tide
Sun -- 06:06 PM PDT     Moonset
Sun -- 06:46 PM PDT     2.88 feet High Tide
Sun -- 07:24 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.20.10.20.81.72.42.72.62.31.91.40.90.60.40.51.122.72.92.72.41.81.3

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Sacramento, CA (14,3,4,5)
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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.