Thursday, April27, 2017 L-36.com


Marine Weather and Tides
Cloverdale, 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 6:15AMSunset 8:01PM Thursday April 27, 2017 9:55 AM PDT (16:55 UTC) Moonrise 6:32AMMoonset 8:41PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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- 839 Am Pdt Thu Apr 27 2017
.small craft advisory in effect through Friday evening...
Today..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. W swell 8 to 9 ft at 12 seconds.
Tonight..NW winds 20 to 30 kt. Wind waves 5 to 7 ft. NW swell 7 to 9 ft at 12 seconds.
Fri..NW winds 20 to 30 kt. Wind waves 5 to 7 ft. NW swell 4 to 6 ft at 12 seconds.
Fri night..NW winds 15 to 25 kt. Wind waves 5 to 7 ft. NW swell 7 to 9 ft at 11 seconds.
Sat..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 6 to 8 ft.
Sun..NW winds 20 to 30 kt. Wind waves 4 to 6 ft. NW swell 7 to 9 ft.
Mon..NW winds 20 to 30 kt. Wind waves 4 to 6 ft. NW swell 6 to 8 ft.
PZZ500 839 Am Pdt Thu Apr 27 2017
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Increasing northwesterly winds will impact the coastal waters today and Friday as building high pressure tightens the pressure gradient. Some isolated gale force gusts will be possible offshore and near coastal points. Steep seas will develop in response to the winds and a fresh northwest swell will continue to impact the coastal waters through the weekend.

7 Day Forecast for Marine Location Near Cloverdale, CA
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location: 38.77, -122.99     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 271045
afdsto
area forecast discussion
national weather service sacramento ca
345 am pdt Thu apr 27 2017

Synopsis
Dry weather thru much of next week with breezy north winds
Thursday and Friday.

Discussion
Last remaining batch of showers is slowly shifting east from the
northern sierra along i-80 and will likely be east of the region
by sunrise. Satellite imagery shows plenty of mid and high clouds
spilling over the eastern pacific into norcal, and the IR fog
product shows low clouds along the eastern edge of the central
valley banked up along the foothills and onto the west slopes of
the northern sierra.

Current temperatures are a little cooler across most of the area
compared to 24 hours ago and generally range from the mid 30s to
mid 40s in the mountains with upper 40s to mid 50s elsewhere.

Weather systems will be deflected well to the north of the region
over the next several days as ridging builds along the west coast.

The result will be dry and milder weather for interior norcal
along with periods of breezy north winds for the central valley,
especially Friday. Temperatures are expected to return to around
average, or above, by the weekend.

Extended discussion (Monday through Thursday)
First half of next week looks warm and dry under upper level high
pressure ridge along the west coast. Daytime highs start out
around 10 degrees above normal on Monday then continue to warm to
almost 15 degrees above normal by Wednesday. Extended models
indicating north breezy winds at times as weak weather systems
pass to the north. Surface gradients become fairly tight at times
across the north state but northwest flow aloft provides poor
upper level support so these winds should not become a major
factor except in the role of warming temperatures and drying.

Should see lighter winds next Wednesday as upper high pressure
ridge centers over the west coast. Upper ridge shifts inland by
next Thursday bringing a return to a more onshore flow and
slightly cooler temperatures although daytime highs are still
expected to remain well above normal. GFS and ECMWF both show a
shortwave trough passage through the pacific northwest and norcal
late next Thursday and Friday and bring a slight precipitation
threat to the north state. Still too early to jump on this yet and
would not be surprised to see this feature shift northward in
subsequent model runs.

Aviation
Vfr TAF sites next 24 hours except slight chance ifr ceilings
northern san joaquin/southern sacramento valleys through about 15z
this morning. Areas ifr over sierra through about 18z thenVFR.

North winds increasing Friday with gusts 20 to 30 knots in the
central valley with highest winds over the northern san joaquin.

Sto watches/warnings/advisories None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 40 mi38 min NW 5.1 G 8.9 53°F 50°F1021.4 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 40 mi26 min NW 27 G 35 53°F 53°F1019.5 hPa47°F

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, CA20 mi63 minN 810.00 miMostly Cloudy58°F44°F60%1016.7 hPa

Wind History from STS (wind in knots)
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Last 24hrSW3W6W5W9W13
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W9W8W11W11W10W8W7W83N5NW7N3CalmCalmN8NW5N6N8N8
1 day agoCalmSE3CalmCalm6W11W11W9W11W11W9W7W3CalmW6SE4S4SE3SE4S4CalmS4S5S5
2 days agoS4SE4W9W12W11
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W12W12W13W10W8W9W5W6CalmCalmCalmCalmCalm3CalmCalmCalmCalm

Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Thu -- 06:17 AM PDT     -1.02 feet Low Tide
Thu -- 06:20 AM PDT     Sunrise
Thu -- 07:33 AM PDT     Moonrise
Thu -- 12:51 PM PDT     4.90 feet High Tide
Thu -- 06:17 PM PDT     1.39 feet Low Tide
Thu -- 08:01 PM PDT     Sunset
Thu -- 09:41 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
65.44.12.40.8-0.4-1-0.801.22.63.84.64.94.53.72.71.81.41.62.33.44.65.6

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Thu -- 12:50 AM PDT     -0.00 knots Slack
Thu -- 04:01 AM PDT     -1.68 knots Max Ebb
Thu -- 06:20 AM PDT     Sunrise
Thu -- 07:34 AM PDT     Moonrise
Thu -- 07:41 AM PDT     0.00 knots Slack
Thu -- 10:42 AM PDT     1.37 knots Max Flood
Thu -- 02:03 PM PDT     -0.00 knots Slack
Thu -- 04:31 PM PDT     -1.09 knots Max Ebb
Thu -- 07:44 PM PDT     0.00 knots Slack
Thu -- 08:01 PM PDT     Sunset
Thu -- 09:41 PM PDT     Moonset
Thu -- 10:39 PM PDT     1.06 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.5-0.1-0.8-1.4-1.7-1.5-1-0.40.20.91.31.41.10.70-0.6-1-1-0.8-0.30.10.611

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 (12,3,4,5)
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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.