Thursday, April25, 2019 L-36.com


Marine Weather and Tides
Nevada City, 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 6:13AMSunset 7:53PM Thursday April 25, 2019 5:20 PM PDT (00:20 UTC) Moonrise 12:25AMMoonset 10:10AM Illumination 60% Phase: Waning Gibbous; Moon at 21 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 Nevada City, CA
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location: 39.25, -121     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 252129
afdsto
area forecast discussion
national weather service sacramento ca
229 pm pdt Thu apr 25 2019

Synopsis
A few isolated showers possible over the mountains this evening
and then again Sunday night and early next week. A slow cooling
trend through early next week but with daytime highs remaining
above normal.

Discussion
An upper ridge across california has kept dry and warmer than normal
conditions across norcal today. A weak disturbance ahead of a trough
moving in from the northwest overnight may bring an isolated shower
or two mainly along the northern sierra crest over shasta county this
evening. Elsewhere, dry conditions will be seen.

This upper trough breaks down Friday through the end of the
weekend and a slight cooling trend will be seen. Valley high
temperatures in the upper 80s Friday and Saturday will cool even
further to the mid and low 80s by Sunday. A closed low develops
off the coast of socal Sunday in conjunction with a trough moving
across the northern portion of the state. Ensembles indicate there
could be some light rain across the sierra Sunday evening
associated with this passing system.

.Extended discussion (Monday through Thursday)
guidance continues to show a compact upper low to move across
northern baja california early Monday affording a chance for a
few showers over the southern portion of the sierra Monday evening.

While this system quickly advances into the four corners on
Tuesday, amplifying northern stream flow moves into the central
great basin. The western extent of height falls should graze
interior northern california thus bolstering the chance for
mountain showers on Monday and Tuesday across the sierra-cascade
ranges. Forecast soundings show modest instability but a limiting
factor is the amount of dry air below the cloud layer leading to
enhanced evaporative processes. Impacts across the valley will be
an uptick in the dry, northerly winds. Conditions should improve
by mid- week as the upper trough shifts toward the high plains.

The warmest day of the week will be Monday (upper 70s to lower 80s
over the valley) before cold advection brings numbers closer to
climatology. Looking beyond Wednesday, disturbances cutting
underneath an upper ridge across alaska should be monitored. Both
reliable ensemble systems (ecmwf gefs) show a trough passage over
the west coast late next week. ~bro kr

Aviation
Vfr conditions are expected for the next 24 hours at all sites. A
few isolated showers or thunderstorms will be possible over
primarily shasta county this afternoon and evening.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 91 mi96 min W 13 80°F 1012 hPa56°F
PCOC1 - 9415144 - Port Chicago, CA 99 mi33 min W 12 G 15 1012.2 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Nevada County Air Park, CA2 mi46 minSW 410.00 miFair79°F48°F34%1016.6 hPa
Emigrant Gap, Blue Canyon Nyack Airport, CA16 mi89 minSW 10 G 1510.00 miA Few Clouds71°F41°F34%1012.4 hPa
Auburn Municipal Airport, CA21 mi46 minN 010.00 miFair82°F55°F40%1013.9 hPa

Wind History from GOO (wind in knots)
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Last 24hrCalmNW5NW3CalmCalmSE3CalmE4CalmE3CalmCalmCalmCalmSE3CalmSE3CalmS3CalmSW7SW3SW6W4
1 day agoNW7NW7NW6NW4NE3NE5NE4CalmCalmCalmCalmCalmCalmSE3SE4SE3SE4E3SW3W6W6W7SW4W7
2 days agoN6
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N5E4NE6NE4NE3N4N3CalmNE4E4E5E5E8E7E7SE3NW5W7W7W8W9NW9NW8

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
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Thu -- 01:15 AM PDT     2.28 feet High Tide
Thu -- 01:24 AM PDT     Moonrise
Thu -- 06:16 AM PDT     Sunrise
Thu -- 07:29 AM PDT     0.85 feet Low Tide
Thu -- 11:12 AM PDT     2.56 feet High Tide
Thu -- 11:14 AM PDT     Moonset
Thu -- 07:52 PM PDT     Sunset
Thu -- 08:59 PM PDT     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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22.32.221.61.310.90.91.42.22.62.52.42.11.71.30.90.50.30.100.20.7

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Thu -- 12:06 AM PDT     2.28 feet High Tide
Thu -- 01:24 AM PDT     Moonrise
Thu -- 05:59 AM PDT     0.85 feet Low Tide
Thu -- 06:16 AM PDT     Sunrise
Thu -- 10:03 AM PDT     2.56 feet High Tide
Thu -- 11:14 AM PDT     Moonset
Thu -- 07:29 PM PDT     0.01 feet Low Tide
Thu -- 07:51 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.21.91.51.20.90.91.11.72.32.62.52.321.61.10.70.40.200.10.40.91.5

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 (20,4,5,8)
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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.