Monday, March18, 2019 L-36.com


Marine Weather and Tides
Geyserville, 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 7:16AMSunset 7:22PM Monday March 18, 2019 7:09 PM PDT (02:09 UTC) Moonrise 3:48PMMoonset 5:04AM Illumination 96% Phase: Waxing Gibbous; Moon at 13 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 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 217 Pm Pdt Mon Mar 18 2019
Rest of today..S winds 5 to 10 kt. Wind waves 2 ft or less. W swell 3 to 5 ft at 13 seconds and sw 1 to 2 ft at 16 seconds. Patchy fog.
Tonight..SE winds 5 to 15 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 18 seconds and S 1 to 2 ft at 16 seconds. Patchy fog.
Tue..SE winds 10 to 15 kt. Wind waves 2 ft or less. W swell 5 to 7 ft at 18 seconds and S 1 to 2 ft at 18 seconds.
Tue night..SE winds up to 10 kt. Wind waves 2 ft or less. W swell 6 to 8 ft at 18 seconds and S 1 to 2 ft at 17 seconds. Showers likely.
Wed..NW winds 10 to 20 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. W swell 8 to 9 ft at 16 seconds and S 1 to 2 ft at 18 seconds. Showers likely.
Wed night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 5 ft. W swell 7 to 8 ft at 14 seconds and S 1 to 2 ft at 17 seconds. A chance of showers.
Thu..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 5 to 7 ft and S 1 to 2 ft.
Fri..SW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 8 to 11 ft and S 1 to 2 ft. Showers likely.
PZZ500 217 Pm Pdt Mon Mar 18 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Winds will become more southerly into this evening ahead of an approaching low pressure system moving in from the west. Southerly winds will increase along with rain chances on Tuesday as a cold front moves through the region. Winds will turn back out of the west to northwest on Wednesday. A long period westerly swell will arrive tomorrow, increasing shoaling on bars and harbor entrances is anticipated.


7 Day Forecast for Marine Location Near Geyserville, CA
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location: 38.71, -123     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 182228
afdsto
area forecast discussion
national weather service sacramento ca
328 pm pdt Mon mar 18 2019

Synopsis
Dry and mild weather into Tuesday. Precipitation chances return
Tuesday night bringing high mountain snow with travel delays
through Wednesday night. Another wet system is possible late
Friday into Saturday.

Discussion
Dry and mild once again today, with temperatures 1 to 5 degrees
warmer than this time yesterday. The warmest spot is stockton,
where it was 78 degrees at 3 pm pdt, with 70s across the rest of
the valley. Today will be the warmest day of the week, with more
clouds and unsettled weather for the rest of the week. Highs are
expected to cool a bit over the valley on Tuesday as the leading
edge of a pacific system approaches bringing increasing clouds and
a return to cooler onshore flow.

The system gradually spreads in Tuesday, with precipitation
arriving by evening. A winter weather advisory has been issued for
the northern sierra from 8 pm pdt Tuesday to 11 pm pdt Wednesday
above 6000 feet due to travel delays and chain controls from snow.

Snow will initially be light and at pass levels (around 7200
feet), then become moderate in heavier convective showers after
midnight, with snow levels dropping to around 5500 feet Wednesday.

Total snow accumulations of 6 to 9 inches, with localized amounts
up to 12 inches are possible.

Valley total rainfall will be around 0.25" to 0.50" through early
Thursday. Wet commutes are expected Wednesday morning and
afternoon and could cause minor delays.

Wednesday afternoon and early evening thunderstorms are possible,
mainly over the northern san joaquin valley and through the
motherlode as the core of the upper low edges northward into the
area. Instability depends to some degree on sunlight from afternoon
clearing.

A relative break in showers is expected on Thursday under short
wave ridging ahead of a stronger system late in the week. Ek
.Extended discussion (Friday through Monday)
by Friday morning, the main upper low will be located over the
southwestern us with predominantly dry conditions over northern
california. A trough approaches the area by Friday and and a quick
system looks to bring more rain and mountain snow. Precipitation
amounts have been trending down with this storm only a tenth of an
inch up to a half inch expected for the duration of this system
through Saturday morning. For now, snow amounts may only be a couple
inches with snow levels mainly above 6000 feet. Upper ridging moves
across the area Saturday into Sunday bringing a break in
precipitation before models hint at another system which may impact
the region early next week. Valley high temperatures remain in the
60s Friday through the weekend, with higher elevations in the 40s
and 50s.

Aviation
Another quiet day withVFR conditions and winds generally below
10kts.

Sto watches warnings advisories
Winter weather advisory from 8 pm Tuesday to 11 pm pdt Wednesday
for west slope northern sierra nevada.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 36 mi39 min S 7.8 G 12 55°F1013.9 hPa
ANVC1 - 9416841 - Arena Cove, CA 40 mi39 min SSW 8.9 G 13 51°F 52°F1013.4 hPa
PRYC1 - 9415020 - Point Reyes, CA 49 mi39 min 58°F1013.5 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA17 mi16 minSSE 410.00 miFair64°F48°F58%1011.7 hPa

Wind History from STS (wind in knots)
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Last 24hrCalmCalmW3NW3NW4CalmNW3CalmNW4N6NW4CalmNW3NW4CalmCalmCalm4SW7S9S9SW9SW6SE4
1 day agoSE7S4S3SE3CalmCalmW3CalmNW3CalmCalmCalmCalmCalmN3CalmCalm4S5S8SW6S7S6S6
2 days agoSE4SE6SE4W3CalmNW3NW4W3CalmCalmCalmCalmCalmCalmCalmCalmCalm3S4S5S10W7SW6S5

Tide / Current Tables for Fort Ross, California
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Fort Ross
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Mon -- 03:18 AM PDT     2.04 feet Low Tide
Mon -- 06:03 AM PDT     Moonset
Mon -- 07:19 AM PDT     Sunrise
Mon -- 09:04 AM PDT     5.98 feet High Tide
Mon -- 03:59 PM PDT     -0.71 feet Low Tide
Mon -- 04:49 PM PDT     Moonrise
Mon -- 07:22 PM PDT     Sunset
Mon -- 10:39 PM PDT     5.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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43.12.42.12.22.83.84.85.665.74.83.51.90.5-0.4-0.7-0.40.51.734.255.2

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Mon -- 01:24 AM PDT     -0.88 knots Max Ebb
Mon -- 04:43 AM PDT     0.00 knots Slack
Mon -- 06:04 AM PDT     Moonset
Mon -- 07:20 AM PDT     Sunrise
Mon -- 07:34 AM PDT     0.99 knots Max Flood
Mon -- 10:26 AM PDT     -0.00 knots Slack
Mon -- 01:37 PM PDT     -1.57 knots Max Ebb
Mon -- 04:49 PM PDT     Moonrise
Mon -- 05:26 PM PDT     0.00 knots Slack
Mon -- 07:23 PM PDT     Sunset
Mon -- 08:29 PM PDT     1.32 knots Max Flood
Mon -- 11:40 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-0.9-0.8-0.6-0.30.10.60.910.70.3-0.4-1.1-1.5-1.5-1.3-0.9-0.30.411.31.310.5

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (22,6,7,8)
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Ground Weather Radar Station Sacramento, CA
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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.