Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Soda Bay, 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 7:34PM Thursday March 30, 2017 1:29 PM PDT (20:29 UTC) Moonrise 7:56AMMoonset 9:50PM Illumination 12% 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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PZZ540 Point Arena To Point Reyes To 10 Nm- 829 Am Pdt Thu Mar 30 2017
.small craft advisory in effect until 5 pm pdt this afternoon...
.gale warning in effect from 5 pm pdt this afternoon through late tonight...
.small craft advisory in effect from Friday morning through Friday afternoon...
Today..NW winds 20 to 30 kt. Wind waves 3 to 5 ft. W swell 10 to 13 ft at 14 seconds.
Tonight..NW winds 20 to 30 kt with occasional gusts to 45 kt. Wind waves 4 to 6 ft. NW swell 7 to 9 ft at 13 seconds.
Fri..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 8 to 10 ft at 12 seconds.
Fri night..NW winds 20 to 30 kt. Wind waves 3 to 5 ft. NW swell 11 to 14 ft at 14 seconds.
Sat..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 9 to 11 ft at 16 seconds.
Sun..NW winds 20 to 30 kt. Wind waves 4 to 6 ft. NW swell 10 to 13 ft...increasing to 14 to 17 ft.
Mon..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 11 to 14 ft...decreasing to 6 to 8 ft.
PZZ500 829 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... Northwest winds will remain strong and gusty in wake of a frontal passage earlier this morning. Surface high pressure will build over far northern california resulting in gale force winds over the coastal waters through at least Friday. 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 Soda Bay, CA
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location: 39.01, -122.83     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 301717
afdsto
area forecast discussion
national weather service sacramento ca
1017 am pdt Thu mar 30 2017

Synopsis
Weak front will bring light rain and snow to norcal today with
lowering snow levels. Gusty north winds are likely today and
Friday. Seasonably dry weather anticipated for Saturday with
chances for light rain over the mountains late Sunday and Sunday
night.

Morning update (Thursday 1017 am)
latest model guidance suggests increased winds for the central
valley this afternoon through this evening. The wind forecast has
been adjusted with a wind advisory issued. Periods of strongest
winds will be more for the northern sacramento valley and northern
san joaquin valley this afternoon through the early evening hours,
but the entire valley can expect breezy conditions through this
evening.

As the trough base continues to move through the region this
morning, some scattered light rain and snow for the sierra will
continue and diminish by early afternoon.

Discussion
Ir satellite imagery shows back edge of weak frontal band moving
across the north coast at this time. Precipitation amounts across
the north state with this system have been quite light and
generally a tenth inch or less except over the sierra were
orographics have squeezed out a few tenths. A shortwave trough
pivoting through southwest flow ahead of the front has brought
isolated thunderstorms southeast of redding but this storm should
dissipate as it moves into the mountains. Any precipitation
threat should end by this afternoon as the upper low shifts into
the great basin except over the sierra where rap around moisture
may bring a few lingering showers. Snow levels should drop from
over 8000 feet this morning to below 5000 feet this afternoon but
limited precipitation should limit impacts. Cooler airmass behind
the front will bring down daytime highs today to near normal for
this time of year. Northerly flow between upper low moving
eastward and upper ridging over the eastern pacific will bring
breezy to gusty north winds across the north state. Surface
gradients this afternoon through Friday are forecast to run
between 8 and 10 mb. With surface gradients and upper level
support... Breezy to gusty winds should continue most areas through
the nighttime hours. Upper ridge axis pushes eastward to near the
coast by Friday afternoon bringing several degrees of warming and
fair skies for norcal. Still more warming is expected on Saturday
as the upper ridge shifts over the west coast. Daytime highs
should come in around 10-15 degrees above normal. Upper ridge axis
breaks down by Sunday allowing for a chance of precipitation
across the northern mountains by afternoon.

.Extended discussion (Monday through Thursday)
ridging builds over the region Mon and Tue with temperatures
remaining around 5 degrees warmer than normal. A larger upper
level trough approaches the pacific NW next Wed and thu, bringing
a wetter atmospheric river storm pattern. The probability of
integrated vapor transport tool shows increasing confidence of a
steadily strengthening ar event . Right now the brunt of the
energy is still northward of 40 deg N and into oregon, but the
last couple runs have trended farther south. This certainly grabs
our attention. Jclapp

Aviation
Incrsg nly flow alf as upr trof movs into grt basin and upr
rdg in epac blds inld.VFR conds ovr intr norcal nxt 24 hrs
exc isold ifr/lifr poss ovr siernev in snow shwrs til 01z fri.

Areas nly sfc wnd gsts up to 35 kts poss ovr intr norcal tda thru
03z fri.

Sto watches/warnings/advisories
Wind advisory until 8 pm pdt this evening for carquinez strait
and delta-central sacramento valley-mountains southwestern
shasta county to northern lake county-northern sacramento valley-
northern san joaquin valley-southern sacramento valley.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 47 mi42 min W 9.9 G 16 54°F 52°F1023 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 59 mi30 min NW 27 G 33 53°F 54°F1021.4 hPa (-1.2)46°F

Wind History for Arena Cove, CA
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NW7
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NW5
G15
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NW3
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NW6
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G11
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G14
NW9
G13

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah, Ukiah Municipal Airport, CA22 mi34 minNNW 13 G 1910.00 miFair61°F35°F38%1020.4 hPa

Wind History from UKI (wind in knots)
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Last 24hrNW7CalmNW11
G15
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N8N9NE6N4N6N9NW4CalmCalmNW11
G16
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G28
NW8N12
G17
NW13NW7NW12NW13
G19
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1 day agoNW12
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G18
NE5N6N5CalmCalmCalmCalmCalmCalmNW3CalmE3CalmN4NW3N34N10N8
2 days agoNW9
G20
NW9
G17
W12W14W9
G18
N5N5N3CalmCalmCalmNW3CalmSW3CalmCalmCalmCalmNW4N3CalmCalmCalmW13
G18

Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Thu -- 12:50 AM PDT     5.84 feet High Tide
Thu -- 07:00 AM PDT     Sunrise
Thu -- 07:20 AM PDT     -0.25 feet Low Tide
Thu -- 08:58 AM PDT     Moonrise
Thu -- 01:45 PM PDT     4.92 feet High Tide
Thu -- 07:26 PM PDT     1.23 feet Low Tide
Thu -- 07:34 PM PDT     Sunset
Thu -- 10:50 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.65.85.44.42.91.50.3-0.2-0.10.61.72.944.74.94.53.72.71.81.31.3234.1

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Thu -- 02:03 AM PDT     -0.00 knots Slack
Thu -- 05:09 AM PDT     -1.47 knots Max Ebb
Thu -- 07:00 AM PDT     Sunrise
Thu -- 08:44 AM PDT     0.00 knots Slack
Thu -- 08:59 AM PDT     Moonrise
Thu -- 11:44 AM PDT     1.19 knots Max Flood
Thu -- 03:03 PM PDT     -0.00 knots Slack
Thu -- 05:38 PM PDT     -1.07 knots Max Ebb
Thu -- 07:35 PM PDT     Sunset
Thu -- 08:52 PM PDT     0.00 knots Slack
Thu -- 10:51 PM PDT     Moonset
Thu -- 11:50 PM PDT     0.97 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.60-0.6-1.2-1.5-1.3-0.9-0.40.10.71.11.210.60-0.6-1-1-0.8-0.40.10.50.9

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 (16,3,4,5)
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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.