Thursday, August17, 2017 L-36.com


Marine Weather and Tides
Magalia, 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 6:20AMSunset 8:00PM Thursday August 17, 2017 8:30 AM PDT (15:30 UTC) Moonrise 12:59AMMoonset 3:47PM Illumination 22% Phase: Waning Crescent; Moon at 25 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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7 Day Forecast for Marine Location Near Magalia, CA
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location: 39.77, -121.63     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 171035
afdsto
area forecast discussion
national weather service sacramento ca
335 am pdt Thu aug 17 2017

Synopsis
Temperatures near to slightly above normal with a threat of
late-day mountain thunderstorms.

Discussion (today through Saturday)
Strong delta breeze early this morning with marine layer about
2000 ft deep per ft. Ord profiler. Fog product imagery showing
coastal stratus extending inland to near cordelia attm. Patchy
stratus may pop up around the sacramento area around sunrise but
will be short lived. Some warming expected today over interior
norcal as high pressure in the epac builds inland. MAX temps this
afternoon forecast to be around 3 to 7 degrees above normal.

Elevated instability progs point to the potential for deep moist
convection over the higher terrain of the sierra nevada, mainly
south of highway 50, this afternoon.

Slight warming continues over interior norcal Friday under
increased subsidence, shallower marine layer, and weaker delta
breeze. Higher levels of 700-500 mb mu CAPE and tt values
exceeding 30 progged over the higher terrain of the sierra nevada
again tomorrow, but also over the coastal range for a threat of
afternoon to early evening thunderstorms there as well.

Heights thicknesses trend down over interior norcal through the
weekend as upper troughing deepens over the area. As a result,
onshore flow increases along with depth of marine layer. High
temperatures trend down to near normal by Sunday. Afternoon
thunderstorms again possible over the higher terrain of the sierra
nevada Saturday, expanding to increase the NE and N mountains
Sunday.

Pch
.Extended discussion (Monday through Thursday)
an upper level low will be setting up off the coast of socal to
start the extended period. This will push moisture north into
norcal and bring a chance for mountain t-storms during the
afternoon and evening both Sunday and Monday. Of course Monday is
a day you will want minimal cloud cover to see the eclipse. It
dose look like there will be enough moisture to see some clouds in
the valley but not expecting widespread cloud cover. Not as much
moisture is expected on Tuesday and that should limit the
thunderstorm chances but still could see some activity mainly over
the coastal range of tehama and shasta counties. On Wednesday the
upper level low pushes east as a trough drops south out of the
gulf of alaska. This will bring troughing for the end of the
period but mountain thunderstorm chances look limited. Overall
temperatures will be seasonal throughout the period to maybe a few
degrees below normal on Tuesday.

-cjm

Aviation
Vfr conds ovr intr norcal nxt 24 hrs exc LCL MVFR ifr poss in st
vcnty of delta til arnd 17z. Isold aftn TSTM poss ovr hyr trrn of
siernev tda btwn 21z-01z. Swly sfc wnd gsts to 25 kts poss thru
delta til 16z and agn aft 00z.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chico Municipal Airport, CA12 mi44 minSE 510.00 miClear70°F57°F64%1015.6 hPa
Oroville Municipal Airport, CA19 mi38 minN 010.00 miFair70°F59°F68%1015.4 hPa

Wind History from CIC (wind in knots)
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Last 24hr5555555S7S10SE10SE10S10SE7CalmCalmCalmN3N3NE6CalmCalmSE55SE5
1 day agoCalmCalm5CalmS6S6S10S7S6S7S9S7S7SE7S6SE5SE4CalmCalmCalmSE4Calm55
2 days agoSE7SE85CalmS10S10SE10SE13
G18
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S12S9SE7SE6SE8SE7CalmSW5S7SE6S5CalmCalmCalm

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

Thu -- 02:01 AM PDT     Moonrise
Thu -- 02:55 AM PDT     3.18 feet High Tide
Thu -- 06:22 AM PDT     Sunrise
Thu -- 12:17 PM PDT     0.08 feet Low Tide
Thu -- 04:43 PM PDT     Moonset
Thu -- 04:58 PM PDT     2.32 feet High Tide
Thu -- 07:57 PM PDT     Sunset
Thu -- 11:21 PM PDT     0.74 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.42.333.23.12.82.41.91.30.90.50.20.10.20.81.52.12.32.21.91.51.10.90.7

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Thu -- 02:01 AM PDT     Moonrise
Thu -- 02:55 AM PDT     3.17 feet High Tide
Thu -- 06:22 AM PDT     Sunrise
Thu -- 12:17 PM PDT     0.08 feet Low Tide
Thu -- 04:43 PM PDT     Moonset
Thu -- 04:58 PM PDT     2.31 feet High Tide
Thu -- 07:57 PM PDT     Sunset
Thu -- 11:20 PM PDT     0.73 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.42.333.23.12.82.41.81.30.90.50.20.10.20.81.52.12.32.21.91.51.10.90.7

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 (11,2,3,4)
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Ground Weather Radar Station Beal AFB, 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.