Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Yuba City, 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 6:50AMSunset 7:30PM Thursday March 30, 2017 3:47 AM PDT (10:47 UTC) Moonrise 7:52AMMoonset 9:46PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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- 214 Am Pdt Thu Mar 30 2017
.small craft advisory in effect from this afternoon through Friday afternoon...
Today..NW winds 10 to 20 kt...increasing to 15 to 25 kt in the afternoon.
Tonight..NW winds 15 to 25 kt.
Fri..N winds 15 to 25 kt.
Fri night..NW winds 10 to 20 kt.
Sat..NW winds 10 kt.
Sun..W winds 5 kt...increasing to 5 to 15 kt.
Mon..NW winds 5 to 15 kt.
PZZ500 214 Am Pdt Thu Mar 30 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... 0800z surface observations and bouy data depicted a cold front entering the northern portions of the coastal waters. Northwest winds behind this cold frontal passage will increase through the day today. Surface high pressure will build over far northern california into Friday resulting in gale force winds over the coastal waters beginning later this afternoon and continuing into Friday...and possibly later for the outer water zones. Northwest swell will level off while swell periods steadily decrease today. Large and very long period northwesterly swell will return to the coastal waters late Saturday night that will last through the weekend.

7 Day Forecast for Marine Location Near Yuba City, CA
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location: 39.11, -121.68     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 300400
afdsto
area forecast discussion
national weather service sacramento ca
900 pm pdt Wed mar 29 2017

Synopsis
An approaching upper level disturbance will bring light rain for the
valley and light snow for elevations higher than 4000 feet. Gusty
north winds are likely Thursday and Friday. Seasonably dry
weather anticipated for Saturday with chances for light rain in
the sierra Sunday.

Discussion
A weak weather system is moving into parts of northern california
this evening. Some scattered light showers exist at this time
north of about chico. The low will deepen over the area late
tonight and by 8 am the trough axis will be over the sierra
nevada. Only some light showers will persist after then over the
western slopes but will continue to diminish throughout the day.

Snow levels start to drop late tonight and Thursday morning. A
couple of inches of snow may accumulation near major pass levels
with up to about 4 inches over the peaks. Rainfall amounts within
the valley will be under a tenth of an inch and some areas may not
see any rainfall.

Northerly winds will increase behind the front during the morning
hours in the valley. Winds will increase to mainly between 15 and
25 mph with gusts between 25 to 35 mph. Locally there could be
some stronger winds. By evening the showers will have moved out of
the forecast area and winds will start to decrease but will likely
remain breezy into the evening hours.

Previous discussion (today through Saturday)
The upper level ridge over the eastern pacific is beginning to break
down as an upper level trough approaches from the northwest.

Satellite and radar imagery shows increasing clouds and some areas
of precipitation moving into the region across the northern
mountains and northern sacramento valley.

Forecast concerns this period include some light rain for the valley
and foothills with light snow for elevations higher than 4000 feet
starting tonight through Thursday night/Friday morning, and gusty
north winds on Friday. Model forecasts are in good agreement and
indicate the shortwave trough quickly moving through northern
california, which will start late tonight and last through Friday.

Little impacts are expected from the precipitation with only 1 to 2
inches of snow for the mountains and some wet roadways. A stronger
mid to lower level jet will be present across the area Friday, which
could translate to gusty north winds between 30 and 35 mph for the
valley and upwards of 45 mph for the higher terrain. Gusts will
start to diminish Friday evening.

Another upper level ridge will begin to build across the region and
will allow for dry seasonal weather to return with temperatures
between 5 and 10 degrees above normal.

.Extended discussion (Sunday through Wednesday)
the extended period will be somewhat unsettled with a couple
weather systems expected to move through the area. A shortwave
will deepen as it moves over the northwest us on Sunday, bringing
light precipitation to the norcal mountains Sunday evening
through the overnight hours. Temperatures will lower slightly by
Monday, and we could see a gusty northern wind event behind the
trough. Ridging builds again for the early part of the week with
temperatures remaining around 5 degrees warmer than normal. A
larger upper level trough looks to approach the pacific northwest
by the end of the extended period, bringing a wetter storm system
into the area beginning Wednesday evening.

Hec

Aviation
MainlyVFR conditions. A brief weather system will bring scattered
-shra through tomorrow morning and possible MVFR conditions to
taf sites after 11z tomorrow. Winds increasing to sustained
greater than 10-15 kt by 12z with gusts up to 20-25 kt by 18z.

Hec

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 66 mi63 min W 16 57°F 1018 hPa55°F
PCOC1 - 9415144 - Port Chicago, CA 75 mi48 min SW 11 G 17 59°F 57°F1018 hPa (-1.0)
RCMC1 - 9414863 - Richmond, CA 91 mi48 min WNW 11 G 14 58°F 58°F1018.7 hPa (-1.3)

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
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W16
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marysville, Yuba County Airport, CA6 mi55 minS 910.00 miMostly Cloudy58°F54°F87%1015.5 hPa
Marysville, Beale Air Force Base, CA13 mi1.8 hrsSSE 1310.00 miLight Drizzle59°F55°F88%1015.1 hPa
Lincoln Regional Karl Harder Field, CA22 mi53 minSSE 12 G 1510.00 miOvercast55°F51°F88%1015.6 hPa

Wind History from MYV (wind in knots)
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Last 24hrNE3E4CalmCalmCalmCalmS5SE6S5333E5E3S6SW3CalmNE3E5CalmS7S11S10S9
1 day agoN11NW10NW13NW17
G25
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2 days agoSE3NW6CalmN3NE4N5E5N3NW10NW11
G20
NW6NW12NW17
G24
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G23
NW11NW11NW6NW8NW8N9N6N9N9NW10

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 -- 04:39 AM PDT     0.28 feet Low Tide
Thu -- 06:53 AM PDT     Sunrise
Thu -- 08:51 AM PDT     Moonrise
Thu -- 09:04 AM PDT     3.16 feet High Tide
Thu -- 05:35 PM PDT     -0.01 feet Low Tide
Thu -- 07:27 PM PDT     Sunset
Thu -- 10:14 PM PDT     2.62 feet High Tide
Thu -- 10:43 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
21.50.90.50.30.30.81.82.83.23.12.82.31.71.10.60.2000.61.52.22.62.6

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Thu -- 04:39 AM PDT     0.27 feet Low Tide
Thu -- 06:53 AM PDT     Sunrise
Thu -- 08:51 AM PDT     Moonrise
Thu -- 09:05 AM PDT     3.15 feet High Tide
Thu -- 05:35 PM PDT     -0.01 feet Low Tide
Thu -- 07:28 PM PDT     Sunset
Thu -- 10:14 PM PDT     2.61 feet High Tide
Thu -- 10:43 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
21.50.90.50.30.30.81.82.83.13.12.72.31.71.10.60.2000.51.42.22.62.6

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 (6,6,7,8)
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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.