Saturday, November1, 2014 L-36.com


Marine Weather and Tides
Dillon Beach, CA

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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 7:36AMSunset 6:11PM Saturday November 1, 2014 2:59 AM PDT (09:59 UTC) Moonrise 2:05PMMoonset 12:44AM Illumination 64% Phase: Waxing Gibbous; Moon at 9 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- 228 Am Pdt Sat Nov 1 2014
Today..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 9 to 11 ft at 13 seconds. Chance of showers in the morning...then slight chance of showers in the afternoon.
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 8 to 10 ft at 11 seconds.
Sun..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 7 to 9 ft at 12 seconds.
Sun night..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 6 to 8 ft at 11 seconds.
Mon..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 5 to 7 ft at 12 seconds. SW swell 3 ft.
Tue..NW winds 10 kt. Wind waves 2 ft or less. NW swell 6 to 8 ft.
Wed..N winds 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft.
PZZ500 228 Am Pdt Sat Nov 1 2014
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Post frontal rain showers with northwest winds will continue to impact the coastal waters as an upper trough aloft shifts east. There is a slight chance that stronger rain cells could develop into Thunderstorms. NW winds will gradually increase tonight and into Sunday as high pressure builds behind the trough. Seas of up 10 to 12 feet will develop creating some hazardous seas for the start of crab season. Large northwest swell entering Monterey bay will create strong rip currents from asilomar to Monterey state beaches through early Sunday morning.

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 010547
afdmtr
area forecast discussion
national weather service san francisco bay area
1047 pm pdt Fri oct 31 2014

Synopsis A slow-moving cold front will continue to produce rain
across monterey and san benito counties through Friday evening.

Behind the front... Showers and isolated thunderstorms will develop
overnight Friday night... Mainly south of san francisco. Showers
will linger into Saturday. Dry conditions are forecast to return
on Sunday and continue through much of next week as high pressure
builds over the region.

Discussion As of 8:55 pm pdt Friday... A cold front produced
widespread much-needed rainfall across our region today.

Significant enhancement occurred along the front as it pressed
south into monterey and san benito counties this afternoon. The
frontal rain band also slowed considerably as a wave developed along
the front off the central ca coast. These developments resulted in
rainfall totals that were opposite of the norm... With heavier
amounts to the south and lighter amounts to the north. Rainfall
totals today across the san francisco bay area were generally
between a quarter and a half inch... While areas from monterey bay
southward picked up between 0.75 and 1.5 inches. There was one
report of nearly 2 inches of rain near laguna seca raceway between
monterey and salinas.

The cold-frontal rain band continues to gradually push to the east
this evening and should exit our forecast area entirely by
midnight. Radar and satellite show scattered shower activity
offshore in the cold unstable airmass associated with the upper
trough. There have also been several lightning strikes detected
offshore this evening. A line of showers is currently approaching
the monterey county coast and latest model data suggest that the
most widespread shower activity overnight will be across the
southern part of our cwa. In fact... The models agree that nearly
all of the showery precip tonight and into Saturday will occur
south of the golden gate. Thunderstorm chances appear greatest
across our southern-most counties tonight... But the best chance of
thunderstorms will be over the coastal waters where surface temps
are warmer and instability greater.

Showers will taper off from north to south late Saturday afternoon
and evening and end by midnight Saturday night. Dry weather will
return to all areas by Sunday as an upper level ridge builds just
offshore. Temperatures will remain cool through the weekend.

The upper ridge will build inland over california and result in a
warming trend during the first half of the work week. Daytime
temps are expected to warm above normal by midweek. The ridge will
also keep our area dry through most of the week... Perhaps the
entire week. A weak system is forecast to approach northern ca
late in the week... But most model data now indicate this system
will remain too far north to bring rain to our area.

Aviation As of 10:40 pm pdt Friday... Showers off the coast in
association with the upper trough. Several lightning strikes have
been detected offshore with more over the san joaquin valley.

These showers will be moving inland tonight through Saturday
but most of the showers will be south of the sfo bay area.

Winds will stay light westerly through tonight then turn more
southerly after 12z.

Vicinity of ksfo...VFR with CIGS remaining above 4000 feet.

Thunderstorms expected to stay south of the approach but cannot
rule out the possibility of a stray thunderstorm getting into the
sfo bay area after 12z. Winds will be light west switching to the
south after 12z then switch back to west Saturday afternoon.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals... Lots of shower activity off the mry
bay will impact mry and sns through Saturday.VFR cigs
occasionally lowering to MVFR in showers.

Marine As of 8:55 pm pdt Friday... A frontal system has moved
through the area. An upper level trough behind the system will
bring showers and possibly a few thunderstorms tonight. NW winds
will gradually increase Saturday night and Sunday as high pressure
builds behind the trough. Seas of up to 10 feet will develop
creating some hazardous seas for the start of crab season.

Mtr watches/warnings/advisories
Tngt None.

Public forecast: dykema
aviation/marine: W pi
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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 mi70 min NNW 12 G 16 59°F 60°F10 ft1007.7 hPa (+0.5)
PRYC1 - 9415020 - Point Reyes, CA 18 mi42 min WNW 8 G 11 59°F 61°F1007.6 hPa
46214 - Point Reyes, CA (029) 33 mi49 min 61°F11 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi70 min NW 9.7 G 12 59°F 60°F9 ft1008 hPa (-0.0)
46237 - San Francisco Bar, CA (142) 37 mi48 min 62°F7 ft
RCMC1 - 9414863 - Richmond, CA 38 mi42 min WNW 7 G 12 58°F 63°F1007.1 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi42 min WNW 8 G 11 60°F 1007.6 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi42 min WNW 7 G 9.9 58°F 1006.9 hPa
FTPC1 - 9414290 - San Francisco, CA 41 mi42 min W 2.9 G 7 58°F 62°F1007.8 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi42 min W 5.1 G 8 58°F 1006.6 hPa
PXSC1 44 mi42 min 58°F 48°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi42 min W 8.9 G 12 59°F 1007.4 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi42 min W 9.9 G 12
OBXC1 46 mi42 min 59°F 49°F
UPBC1 48 mi42 min W 9.9 G 13
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi42 min WSW 7 G 8.9 57°F 64°F1006.2 hPa49°F
AAMC1 - 9414750 - Alameda, CA 49 mi42 min WNW 6 G 11 59°F 64°F1007.2 hPa
LNDC1 49 mi42 min WNW 5.1 G 9.9 59°F 1007.5 hPa

Wind History for Point Reyes, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa (awos), CA20 mi67 minESE 410.00 miFair48°F46°F93%1006.5 hPa
Petaluma Muni, CA20 mi70 minNNW 410.00 miA Few Clouds50°F46°F88%1008.1 hPa
Novato/Gnoss Field Airport, CA24 mi65 minWNW 11 G 16 miFair57°F44°F63%1007.4 hPa

Wind History from O69 (wind in knots)
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Last 24hrCalmE5SE4E5SE3CalmSW7NW6CalmNW4W6NW5CalmSW3W5NW3CalmCalmNW3NW3NW3NW4NW3NW3
1 day agoCalmCalmCalmCalmCalmCalmCalmS7S8SE7S6S3NW4SW8W6W9NW3NW3NW3CalmNW3N3CalmCalm
2 days agoCalmCalmCalmCalmCalmN4CalmCalmS3SE4SE5S4CalmS3CalmNW6CalmCalmCalmCalmNW3CalmCalmCalm

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
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Sat -- 01:02 AM PDT     0.25 feet Low Tide
Sat -- 01:44 AM PDT     Moonset
Sat -- 07:38 AM PDT     Sunrise
Sat -- 07:49 AM PDT     4.63 feet High Tide
Sat -- 01:55 PM PDT     1.78 feet Low Tide
Sat -- 03:05 PM PDT     Moonrise
Sat -- 06:12 PM PDT     Sunset
Sat -- 07:25 PM PDT     4.20 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.20.51.123.13.94.54.64.43.83.12.41.91.822.53.23.84.24.13.732.1

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Sat -- 01:44 AM PDT     Moonset
Sat -- 01:54 AM PDT     0.00 knots Slack
Sat -- 04:58 AM PDT     1.01 knots Max Flood
Sat -- 07:38 AM PDT     Sunrise
Sat -- 08:17 AM PDT     -0.00 knots Slack
Sat -- 10:50 AM PDT     -0.90 knots Max Ebb
Sat -- 02:37 PM PDT     0.00 knots Slack
Sat -- 03:04 PM PDT     Moonrise
Sat -- 05:19 PM PDT     0.76 knots Max Flood
Sat -- 06:12 PM PDT     Sunset
Sat -- 08:13 PM PDT     -0.00 knots Slack
Sat -- 11:06 PM PDT     -1.10 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.400.50.910.90.60.2-0.4-0.8-0.9-0.8-0.6-0.30.20.60.70.70.50.1-0.4-0.9-1.1

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 (5,6,7,8)
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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.