Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Capitola, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:28AMSunset 7:53PM Sunday August 20, 2017 2:11 PM PDT (21:11 UTC) Moonrise 4:14AMMoonset 6:20PM Illumination 2% Phase: Waning Crescent; Moon at 28 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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PZZ535 Monterey Bay- 831 Am Pdt Sun Aug 20 2017
Today..SW winds 10 kt in the morning becoming W 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 3 to 4 ft at 10 seconds. Patchy fog late in the morning.
Tonight..W winds 5 to 15 kt in the evening becoming nw 5 kt after midnight. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds. Patchy fog after midnight.
Mon..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 ft at 10 seconds. Patchy fog in the morning.
Mon night..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 ft at 10 seconds. Patchy fog after midnight.
Tue..W winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 2 to 3 ft at 9 seconds. Patchy fog in the morning.
Wed..W winds 10 kt. Wind waves 2 ft or less. NW swell 2 ft. SWell S 3 ft.
Thu..W winds 10 kt. Wind waves 2 ft or less. W swell 2 ft.
PZZ500 831 Am Pdt Sun Aug 20 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Expect moderate northwest winds to continue over the northern outer waters through tonight. Accompanying breezy winds will aid in producing locally steep wind waves before winds begin to subside tonight.

7 Day Forecast for Marine Location Near Capitola, CA
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location: 36.97, -121.94     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 202101
afdmtr
area forecast discussion
national weather service san francisco bay area
201 pm pdt Sun aug 20 2017

Synopsis Cooling will continue early this week as an upper
trough of low pressure becomes nearly stationary over the eastern
pacific. Coastal areas will see little in the way of change with
continued night and morning low clouds and patchy fog.

Discussion As of 2:00 pm pdt Sunday... Clouds have burned-off
from most of our CWA although still have a few patches near and
along the coast. Temperatures have been running close to
yeterday's numbers with most locations in the 60s and 70s at the
coast with 70s and 80s inland. Satellite shows widspread clouds
off the coast, and with the marine layer still over 2000 feet plus
the onshore gradient still around 2 mb west-to-east clouds will
return back to most of the same locations overnight.

For those planning on watching the eclipse (remember to get the
correct lenses) tomorrow morning, still looks like the farther
inland you are the better shot at seeing it starting at 9 am. The
big question remains how quickly the clouds will dissipate through
the morning hours. Feeling right now is the south bay through
santa clara valley will see mostly clear conditions around the
start while farther to the north stretching from san francisco to
oakland there will likely be clouds at first. However, the hope if
they will dissipate during the hour with good viewing before the
peak time. Most of our coastal locations will likely remain cloudy
all morning.

Outside of the eclipse, not much to talk about as we are going to
continue to see overnight clouds, clearing during the day, and
temperatures remaining cool the first part of the week followed by
a modest warming trend going into the weekend as a ridge of high
pressure rebuilds into our region. No chance of rain.

Aviation As of 10:40 am pdt Sunday for 18z tafs. Visible
satellite shows this morning's overcast skies continuing to mix-
out. ExpectVFR conditions at all terminals by late morning,
though monterey bay terminals could be a bit later. Haze and smoke
could cause visibilities to lower a bit, but confidence is too
low for any given terminal to include in the taf. Depth of the
marine layer continues to climb as an upper level low sits off the
southern california coast. Expect the return of the clouds
overnight.

Vicinity of ksfo...VFR conditions expected to prevail through the
day with increasing west wind around 15 kt this afternoon. Expect
a return to MVFR conditions overnight.

Sfo bridge approach... Webcams this morning reveal haze and smoke
associated with northern california and oregon wildfires. Limited
slant range likely through the day. Otherwise, similar to ksfo.

Monterey bay terminals... MVFR ifr CIGS at kmry and ksns this
morning will likely transition toVFR for the afternoon. Some
guidance suggests kmry may remain locked in bkn ovc conditions
through the day, but currently leaning on persistence from
yesterday in the taf. Will amend if necessary.

Marine As of 02:20 am pdt Sunday... Moderate northwesterly
winds will continue over the northern outer waters through tonight
as high pressure continues to build over the eastern pacific.

Accompanying breezy winds will be locally steep wind waves before
winds begin to decrease tonight.

Eclipse Here are the times for the start, peak, and end of the
eclipse for Monday morning. The percent of obscuration for each
location is also listed.

Santa rosa... San francisco... Oakland... San jose... Monterey

Start... 9:01... ... ... .9:01... ... ... 9:02... ... 9:02... ... .9:02..

Peak... 10:15... ... ... 10:15... ... ..10:15... ..10:16... ... 10:16..

End... .11:37... ... ... 11:37... ... ..11:37... ..11:38... ... 11:38..

Obsur... .78%... ... ... ..76%... ... ... .76%... ... .74%... ... ..71%...

Mtr watches warnings advisories
Tday Sca... Pt arena to pigeon pt 10-60 nm
sca... Pt pinos to pt piedras blancas 0-10 nm from 11 am
sca... Sf bay from 1 pm
public forecast: bell
aviation: rowe
marine: as
eclipse:bell rowe
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ELXC1 - Elkhorn Slough Reserve, CA 15 mi86 min WNW 9.9 66°F 1013 hPa59°F
46092 - MBM1 16 mi69 min S 7.8 61°F 60°F1013.3 hPa (+0.0)
46240 - Cabrillo Point, Monterey Bay, CA (158) 24 mi50 min 58°F2 ft
MEYC1 25 mi41 min N 8 G 11 61°F 58°F1012.8 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 27 mi81 min SSE 9.7 G 12 61°F 60°F7 ft1013.2 hPa (+0.0)
46114 - West Monterey Bay, CA 28 mi41 min 60°F7 ft
RTYC1 - 9414523 - Redwood City, CA 40 mi41 min N 12 G 13 68°F 72°F1011.8 hPa
46239 - Point Sur, CA (157) 44 mi49 min 60°F8 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA8 mi18 minWSW 11 G 1910.00 miFair70°F57°F64%1013.1 hPa

Wind History from WVI (wind in knots)
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Last 24hrSW12SW8W7W6SW5SW5SW4W4SW4SW4SW4SW3SW4CalmSW3SW4W3SW4SW5SW8W10W9SW13SW11
G19
1 day agoSW9SW9SW9S9SW8SW5SW4SW4SW5W3CalmS3CalmW3CalmW3CalmW3CalmCalmW4SW7SW10SW11
2 days agoSW9SW8SW8S8SW5SW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3N3CalmE35S6S8W8

Tide / Current Tables for Santa Cruz, California
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Santa Cruz
Click for Map
Sun -- 03:57 AM PDT     -0.88 feet Low Tide
Sun -- 05:14 AM PDT     Moonrise
Sun -- 06:29 AM PDT     Sunrise
Sun -- 11:05 AM PDT     4.75 feet High Tide
Sun -- 03:55 PM PDT     2.03 feet Low Tide
Sun -- 07:20 PM PDT     Moonset
Sun -- 07:52 PM PDT     Sunset
Sun -- 10:01 PM PDT     6.10 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.61.90.4-0.6-0.9-0.60.21.32.43.64.44.74.53.82.92.322.33455.86.15.8

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Sun -- 02:26 AM PDT     -1.05 knots Max Ebb
Sun -- 05:14 AM PDT     Moonrise
Sun -- 06:20 AM PDT     0.00 knots Slack
Sun -- 06:29 AM PDT     Sunrise
Sun -- 09:26 AM PDT     0.86 knots Max Flood
Sun -- 12:35 PM PDT     -0.00 knots Slack
Sun -- 03:04 PM PDT     -0.61 knots Max Ebb
Sun -- 06:20 PM PDT     0.00 knots Slack
Sun -- 07:19 PM PDT     Moonset
Sun -- 07:51 PM PDT     Sunset
Sun -- 09:13 PM PDT     0.71 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.8-1-1-0.9-0.6-0.20.30.70.80.80.60.3-0.2-0.5-0.6-0.6-0.4-0.10.20.60.70.70.4

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 (17,4,5,8)
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Ground Weather Radar Station San Francisco Bay Area, 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.