Monday, September1, 2014 L-36.com


Marine Weather and Tides
Dillon Beach, CA

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What's New / NOTES
6/17/2014 - I reported slow load times to NOAA and they quickly resolved the problem. Sorry for any inconvience. NOAA had some stuck processes on two servers. This was a problem on 5 to 10% of the requests.
6/10/2014 - Marine Zones updated. Some zones have changed. Edit your Marine Forecast section to check.

Sunrise 6:39AMSunset 7:40PM Monday September 1, 2014 6:48 PM PDT (01:48 UTC) Moonrise 12:26PMMoonset 10:53PM Illumination 51% Phase: First Quarter Moon; Moon at 7 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- 227 Pm Pdt Mon Sep 1 2014
.small craft advisory in effect until 9 pm pdt this evening...
Tonight..NW winds 15 to 25 kt. Wind waves 3 to 6 ft. NW swell 4 to 6 ft at 8 seconds and sw 3 ft at 14 seconds. Patchy fog after midnight.
Tue..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 4 to 6 ft at 8 seconds and sw 3 ft at 14 seconds. Patchy fog in the morning.
Tue night..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft at 8 seconds. Patchy fog after midnight.
Wed..SE winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 10 seconds. Patchy fog in the morning.
Wed night..SW winds 5 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft at 10 seconds. Patchy fog after midnight.
Thu..S winds 5 to 15 kt. Wind waves 1 to 3 ft...becoming 2 ft or less. NW swell 4 to 6 ft. SW swell 3 ft. Patchy fog.
Fri..W winds 10 kt. Wind waves 2 ft or less. Mixed swell nw 3 to 5 ft and sw 3 ft. Patchy fog.
Sat..W winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 4 to 6 ft and sw 3 ft. Patchy fog.
PZZ500 227 Pm Pdt Mon Sep 1 2014
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Northwest winds will continue tonight over the outer coastal waters. These winds decrease tomorrow as a thermal trough develops over the california coast.

7 Day Forecast for Marine Location Near Dillon Beach, CA
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location: 38.25, -122.98     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 020139
afdmtr
area forecast discussion
national weather service san francisco bay area
639 pm pdt Mon sep 1 2014

Synopsis Temperatures return to near seasonal averages by Tuesday
and will persist through late week along with dry weather conditions.

Discussion As of 01:18 pm pdt Monday... The 12z upper air
sounding from oakland this morning showed weak offshore flow in
the 2-6kft layer that resulted in warmer temperatures aloft. This
has generally translated to a warm up in surface temperatures as
expected with a mid/upper level ridge axis also stretching across
the region. The fort ord profiler is also showing these warmer
temperatures above the marine layer... Which has kept coastal
clouds just off the central coast. Given a deepening marine
layer... Should see development of coastal clouds late this evening
that will likely spread inland overnight.

Slightly cooler temperatures are then expected for tomorrow as the
ridge weakens ahead of the next mid/upper level trough set to drop
southward out of the gulf of alaska and down into the pacific
northwest during the next couple of days. In addition... Onshore flow
and deepening marine layer will help bring temperatures back to near
seasonal averages by Tuesday. The forecast models continue to keep a
lingering trough draped over the region through late week. With
limited moisture to work with... Not expecting any measurable
precipitation through the extended forecast period and temperatures
will be within a few degrees of normal.

The medium range models do not show much change in the upper level
pattern as we head into next weekend. With this... Will continue to
keep temperatures near what is typical for late summer and keep any
mention of precipitation out of the extended forecast.

Aviation As of 5:00 pm pdt Monday... A moderately strong 4.7 mb
northerly gradient has swept much of the stratus off the coast
this afternoon. Mainly clear skies are expected to persist through
late tonight. Patchy low clouds will return after 12z Tuesday
morning.

Vicinity of ksfo...VFR conditions expected through late tonight.

Low clouds will return to the bay area after 12z Tuesday morning. West
winds around 15 to 20 kt will ease this evening to around 5 kt overnight.

Stratus tonight expected to be patchy and mostly confined to coast
and east bay.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals...VFR conditions expected through
late this evening. Stratus to return overnight. Light to moderate
sea breeze will ease overnight.

Marine As of 01:18 pm pdt Monday... High pressure extends from
the eastern pacific into the pacific northwest. Moderate northwest
winds continue along the california coast. The winds will decrease
over the southern waters Tuesday through Thursday as a thermal
trough develops along the coast.

Mtr watches/warnings/advisories
Tngt Sca... Pt arena to pt reyes 10-60 nm
sca... Sf bay north of the bay bridge until 9 pm
sca... Pt arena to pt reyes 0-10 nm until 9 pm
sca... Pt reyes to pigeon pt 10-60 nm
sca... Pigeon pt to pt pinos 10-60 nm until 3 am
public forecast: rgass
aviation: cw
marine: ac
visit us at weather.Gov/sanfrancisco
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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 17 mi58 min NW 18 G 19 59°F 60°F6 ft1008.8 hPa (-1.5)
PRYC1 - 9415020 - Point Reyes, CA 18 mi30 min NW 13 G 18 62°F 61°F1008.7 hPa
46214 - Point Reyes, CA (029) 33 mi52 min 60°F7 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi58 min NW 18 G 21 61°F 63°F6 ft1009.1 hPa (-1.3)
46237 - San Francisco Bar, CA (142) 37 mi36 min 60°F5 ft
RCMC1 - 9414863 - Richmond, CA 38 mi30 min SSE 5.1 G 7 73°F 68°F1007.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi30 min SW 6 G 8.9 69°F 1007.7 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi30 min WSW 9.9 G 11 79°F 1006.5 hPa
FTPC1 - 9414290 - San Francisco, CA 41 mi30 min WSW 17 G 22 63°F 65°F1008.1 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi30 min W 11 G 16 68°F 1006.6 hPa
PXSC1 44 mi30 min 70°F 58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi30 min W 8 G 9.9 69°F 1007.7 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi30 min S 1.9 G 4.1
OBXC1 46 mi54 min 70°F 59°F
UPBC1 48 mi30 min WNW 13 G 15
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi30 min WNW 9.9 G 13 84°F 71°F1006.2 hPa58°F
AAMC1 - 9414750 - Alameda, CA 49 mi30 min WNW 7 G 9.9 71°F 72°F1007.7 hPa
LNDC1 49 mi30 min WSW 5.1 G 6 73°F 1007.7 hPa

Wind History for Point Reyes, CA
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W25
W25

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa (awos), CA20 mi55 minSSE 810.00 miFair89°F52°F28%1005.9 hPa
Novato/Gnoss Field Airport, CA24 mi53 minW 3 miFair91°F48°F23%1007.4 hPa

Wind History from O69 (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmSW3W6W6NW4W8W10
G14
W8NW7NW4NW3NW4NW3CalmCalmNW3Calm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Mon -- 05:07 AM PDT     3.38 feet High Tide
Mon -- 06:41 AM PDT     Sunrise
Mon -- 10:10 AM PDT     2.25 feet Low Tide
Mon -- 01:26 PM PDT     Moonrise
Mon -- 04:40 PM PDT     4.78 feet High Tide
Mon -- 07:41 PM PDT     Sunset
Mon -- 11:52 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.62.22.83.23.43.332.72.42.22.32.63.13.74.34.74.84.53.93.12.31.51

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Mon -- 02:32 AM PDT     0.72 knots Max Flood
Mon -- 05:52 AM PDT     -0.00 knots Slack
Mon -- 06:42 AM PDT     Sunrise
Mon -- 08:20 AM PDT     -0.66 knots Max Ebb
Mon -- 11:10 AM PDT     0.00 knots Slack
Mon -- 01:26 PM PDT     Moonrise
Mon -- 02:30 PM PDT     0.65 knots Max Flood
Mon -- 05:21 PM PDT     -0.00 knots Slack
Mon -- 07:41 PM PDT     Sunset
Mon -- 08:47 PM PDT     -1.12 knots Max Ebb
Mon -- 11:53 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.50.70.70.50.3-0-0.4-0.6-0.6-0.3-00.20.40.60.60.40.1-0.2-0.7-1-1.1-0.9-0.6

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 San Francisco/Monterey Bay Area, CA (21,6,7,8)
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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.