Tuesday, September18, 2018 L-36.com


Marine Weather and Tides
Oroville, CA

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Sunrise 6:49AMSunset 7:10PM Tuesday September 18, 2018 3:10 PM PDT (22:10 UTC) Moonrise 2:44PMMoonset 12:00AM Illumination 65% 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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7 Day Forecast for Marine Location Near Oroville, CA
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location: 39.5, -121.57     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 182111
afdsto
area forecast discussion
national weather service sacramento ca
211 pm pdt Tue sep 18 2018

Synopsis
Below average temperatures continue today, then warmer weather
returns for the second half of the week. Enhanced fire weather
concerns Wednesday evening through Thursday. Patchy smoke and
haze will continue, mainly locally over northern portions of
shasta county.

Discussion
A weak upper level trough is moving over the forecast area today.

Today's temperatures will be similar to yesterdays with valley
highs in the high 70s to mid 80s and mountains in the 60s. Upper
level ridging builds through the rest of the week over california,
allowing temperatures to warm to near or few degrees above normal
Wednesday through Friday. However, a weak impulse moves along the
large scale flow over norcal Wednesday night through Thursday
night. Gusty northerly winds are expected to return overnight
Wednesday into Thursday, with the strongest winds expected
Thursday afternoon. The warmer temperatures and northerly winds
will lower humidity levels over the northern and northwestern
portion of our forecast area. This has increased fire weather
concerns, and as such a fire weather watch has been issued for
this time period. Hec
.Extended discussion (Saturday through Tuesday)
upper trof moves through the pac NW on Sat with wly flow bringing
seasonably warm temps to our cwa. Any precip from the trof is
forecast to remain N of ca. Medium range models in decent agreement
in moving this trof through the NRN rockys this weekend and into the
nrn plains early next week before some model differences arise
mon Tue and into mid week. The GFS digs some secondary energy from
the canadian rockys into the NRN rockys Mon tue, in contrast to the
ecmwf which is more progressive with the trof. This results in the
gfs having a more wwd (offshore) displacement of the W coast ridge
than the ecmwf, and a cooler, breezier scenario for our CWA than
the ecmwf.

With the wr modtrend tool showing higher 5h heights over the nern
pac b.C. Pacnw and norcal region, we are inclined to trend the
latter half of the efp to the warmer, less windy ecmwf. This will
moderate the "cooling" trend with MAX temps trending a little above
normal by tue. Dry, warm ridge expected to prevail through the
middle of next week. Jhm

Aviation
Dry stable air mass over interior norcal through Wed withVFR skc
conditions except for local MVFR ifr vsbys due to smoke near the
delta fire in shasta co. Winds generally below 10 knots with weak
to modest delta breeze. Less of a marine influence over the
inland areas is expected Wed morning (than this morning) as the
marine layer is eroding from the N and is becoming elevated this
afternoon.

Sto watches warnings advisories
Fire weather watch from Wednesday evening through Thursday
afternoon for central sacramento valley in glenn, colusa, yuba,
northern sutter, and butte county below 1000 ft-eastern
mendocino nf-eastern portion of shasta trinity nf-lake county
portion of lake-napa-sonoma unit-northern sacramento valley to
southern tehama county line below 1000 ft-northern sierra
foothills from 1000 to 3000 ft. Includes portions of shasta-
trinity and butte units-southeast edge shasta-trinity nf and
western portions of tehama-glenn unit-southern sacramento valley
in yolo-sacramento far western placer, southern sutter and
solano county below 1000 ft.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 93 mi85 min W 5.1 73°F 1013 hPa49°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oroville Municipal Airport, CA3 mi17 minW 410.00 miFair79°F51°F38%1012 hPa

Wind History from OVE (wind in knots)
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Last 24hrCalmSW6SW7S5SE6E4SE3S7SE6SE4SE6CalmS6SW3CalmNE3CalmCalm343SW36W4
1 day ago3CalmE5S4E3CalmNE3CalmSE4E4E4E3CalmW3NW3CalmCalmCalmCalmW3NW4SW3S43
2 days agoS8SE11SE12S7SE7E7SE9SE8E6SE4S7SE3S3CalmE3CalmCalmCalmCalm4W5SW4CalmCalm

Tide / Current Tables for Sacramento, 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 Sacramento #4, Sacramento River, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 (18,4,5,8)
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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.