Wednesday, August22, 2018 L-36.com


Marine Weather and Tides
Bodega Bay, CA

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7/21/2018 Trying to make page Mobile Friendly

Sunrise 6:30AMSunset 7:57PM Tuesday August 21, 2018 10:52 PM PDT (05:52 UTC) Moonrise 4:04PMMoonset 1:15AM Illumination 82% Phase: Waxing Gibbous; Moon at 11 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- 826 Pm Pdt Tue Aug 21 2018
Tonight..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 12 seconds. Patchy fog after midnight.
Wed..SW winds 10 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 12 seconds. Patchy fog in the morning.
Wed night..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 11 seconds. Patchy fog after midnight.
Thu..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 11 seconds. Patchy fog in the morning.
Thu night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft at 11 seconds. Patchy fog after midnight.
Fri..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 5 to 7 ft. Patchy fog.
Sat..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 5 to 7 ft...decreasing to 4 to 6 ft. Patchy fog.
Sun..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 4 to 6 ft. Patchy fog.
PZZ500 826 Pm Pdt Tue Aug 21 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Expect generally light northwesterly winds over the coastal waters through Thursday. Breezy onshore winds will develop near coastal gaps through the afternoon and evenings. Winds will increase over the northern waters Friday into the weekend.


7 Day Forecast for Marine Location Near Bodega Bay CDP, CA
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location: 38.31, -123.07     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 220350
afdmtr
area forecast discussion
national weather service san francisco bay area
850 pm pdt Tue aug 21 2018

Synopsis Slightly warmer temperatures are forecast over the
next few days as an upper trough over northern california lifts to
the northeast. However, temperatures are forecast to remain
slightly cooler than seasonal averages through the end of the week
and into the upcoming weekend. Widespread night and morning low
clouds will continue with only partial afternoon clearing
expected in coastal areas.

Discussion As of 8:50 pm pdt Tuesday... An upper trough
is currently centered over eastern oregon and idaho, and extends
to the southwest across northern california. This trough was
responsible for our cool temperatures today. Coastal areas were
about 3 to 5 degrees cooler than average while inland locations
were anywhere from 7 to 15 degrees below seasonal averages.

The upper trough is forecast to lift to the northeast tonight and
Wednesday, which will allow for a 3 to 5 degrees of warming
tomorrow and Thursday, but primarily inland. Even with that
warming, temperatures will remain slightly cooler than normal.

The marine layer remains deep this evening with fort ord profiler
data indicating a depth of about 2500 feet. Satellite shows that
low clouds have already surged well inland - as far inland as the
altamont pass and pacheco pass. The deep marine layer will likely mean
slow inland clearing tomorrow, and only partial afternoon
clearing at the coast.

The models agree that another trough will drop into the pacific
northwest and far northern california by late in the week, with
yet another trough due in by late in the weekend into early next
week. So we can expect continued cool weather at the coast and
mild temperatures inland through the extended forecast period.

Aviation As of 5:57 pm pdt Tuesday... A moderately deep marine
layer up to 2400 and 2800 feet will likely compress tonight into
Wednesday as lower level thermal ridging strengthens; 925 mb temps
warm 6c-12c from midday earlier today through Wed afternoon. Bodega
bay, fort ord, point sur profilers starting to show some warming and
compression of the marine layer on recent check.

The 18z NAM shows increasing surface dewpoint temperatures sweeping
se-e across the coastal waters and a weak low pressure circulation
setting up just west of mendocino sonoma counties tonight thru thu
morning. This supports ongoing widespread ocean based stratus feed
along with at least patchy fog (4:20 pm visibility 1 2-1 mile in fog
at the farallon islands). Based on recent high-res model output
wildfire smoke both aloft and prob some smoke extending to the
surface will advance inland and add to presently smoky conditions
over the bay area through this evening into Wednesday; clearing
Wednesday could be a very slow process, many locations may have
stratus and a mix of fog smoky hazy conditions all day.

Expect moderate to poor slant range visibility through mid-late
week, and surface visibilities reduced to MVFR-ifr due to combo
fog and smoke, along with lowering stratus ceilings to ifr-vlifr.

Vicinity of ksfo... Stratus coverage is more extensive late this
afternoon, plenty of stratus feed off the ocean, and the marine
layer is moderately deep. Stratus ceilings are likely to lower as
lower level warming steps up through the evening into Wednesday
morning. Scattering of stratus may hold off until Wednesday
afternoon. Horizontal visibilities are good at the moment, but
should generally decrease through the evening; khaf vsby and cig
(ifr) have been steadily lowering.

Sfo bridge approach... Moderate to poor slant range visibility for
the period. Otherwise similar to ksfo.

Monterey bay terminals... MVFR gradually lowering to ifr tonight,
patchy lifr-vlifr is possible depending how quickly the marine
layer compresses; may need to adjust vsbys CIGS lower by 06z taf
issuance. Slow mixing process on Wednesday, clearing prob delayed
at least til late morning if not afternoon with brief window of
clearing in the afternoon. Stratus fog likely rolling back inland
early Wednesday evening and night.

Marine As of 8:26 pm pdt Tuesday... Expect generally light
northwesterly winds over the coastal waters through Thursday.

Breezy onshore winds will develop near coastal gaps through the
afternoon and evenings. Winds will increase over the northern
waters Friday into the weekend.

Mtr watches warnings advisories
Tngt None.

Public forecast: dykema
aviation: canepa
marine: canepa
visit us at

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 14 mi32 min SW 3.9 G 3.9 53°F1015.5 hPa
PRYC1 - 9415020 - Point Reyes, CA 22 mi40 min S 1.9 G 1.9 58°F1015.3 hPa
46214 - Point Reyes, CA (029) 33 mi82 min 54°F6 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 40 mi32 min S 1.9 G 3.9 58°F 57°F1016.2 hPa
46237 - San Francisco Bar, CA (142) 43 mi82 min 57°F3 ft
RCMC1 - 9414863 - Richmond, CA 44 mi40 min 63°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 44 mi35 min Calm 60°F 1016 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 46 mi34 min WSW 9.9 G 14 63°F 1015.1 hPa
FTPC1 - 9414290 - San Francisco, CA 47 mi46 min 1016.1 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 47 mi34 min SW 6 G 8 62°F 1016 hPa

Wind History for Point Reyes, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA20 mi59 minSE 57.00 miSmoke57°F55°F96%1014.3 hPa

Wind History from STS (wind in knots)
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Last 24hr--S3S5S3SE3S5CalmCalmW4SW3CalmCalmNE3SE3S5S55S9S12S7S8S7SE6SE5
1 day agoS3CalmCalmCalmCalmCalmCalmSE3CalmCalmCalmCalm444SE8S7S13S13S12S12S9S6S6
2 days agoSE4S4S5S3CalmS4CalmCalmCalmSW3CalmSW4S45S5S7S9S9S10S9SE10S5SE6SE3

Tide / Current Tables for Bodega Harbor entrance, California
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Bodega Harbor entrance
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Wed -- 03:03 AM PDT     Moonset
Wed -- 03:40 AM PDT     0.36 feet Low Tide
Wed -- 06:33 AM PDT     Sunrise
Wed -- 10:29 AM PDT     4.50 feet High Tide
Wed -- 03:30 PM PDT     2.90 feet Low Tide
Wed -- 05:50 PM PDT     Moonrise
Wed -- 07:56 PM PDT     Sunset
Wed -- 09:06 PM PDT     5.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.91.80.90.50.40.71.42.33.244.44.54.23.73.22.92.93.344.75.45.75.54.8

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Wed -- 01:01 AM PDT     -1.09 knots Max Ebb
Wed -- 03:03 AM PDT     Moonset
Wed -- 04:58 AM PDT     0.00 knots Slack
Wed -- 06:33 AM PDT     Sunrise
Wed -- 08:15 AM PDT     0.94 knots Max Flood
Wed -- 11:11 AM PDT     -0.00 knots Slack
Wed -- 02:08 PM PDT     -0.53 knots Max Ebb
Wed -- 04:55 PM PDT     0.00 knots Slack
Wed -- 05:49 PM PDT     Moonrise
Wed -- 07:48 PM PDT     0.67 knots Max Flood
Wed -- 07:55 PM PDT     Sunset
Wed -- 10:24 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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-1-1.1-1-0.9-0.500.50.80.90.90.60.1-0.3-0.5-0.5-0.5-0.300.40.60.70.50.2-0.3

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 San Francisco/Monterey Bay Area, CA (1,6,7,8)
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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.