Monday, June26, 2017 L-36.com


Marine Weather and Tides
San Simeon, 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 5:48AMSunset 8:28PM Monday June 26, 2017 10:09 AM PDT (17:09 UTC) Moonrise 7:51AMMoonset 9:53PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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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PZZ670 Point Piedras Blancas To Point Sal From 10 To 60 Nm- 907 Am Pdt Mon Jun 26 2017
.small craft advisory in effect through late Tuesday night...
Today..NW winds 15 to 25 kt in the afternoon. Combined seas 3 to 5 ft dominant period 15 seconds. Patchy dense fog with vsby 1 nm or less in the morning.
Tonight..NW winds 15 to 25 kt. Combined seas 4 to 5 ft dominant period 6 seconds. Patchy dense fog in the evening, then areas of dense fog...with vsby 1 nm or less.
Tue..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 3 to 5 ft dominant period 6 seconds. Areas of dense fog with vsby 1 nm or less in the morning.
Tue night..NW winds 20 to 30 kt. Combined seas 5 to 6 ft dominant period 7 seconds. Patchy fog after midnight.
Wed..NW winds 20 to 30 kt. Combined seas 4 to 5 ft dominant period 7 seconds...building to 6 to 7 ft dominant period 7 seconds in the afternoon. Patchy fog in the morning.
Wed night..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft dominant period 7 seconds. Patchy fog after midnight.
Thu..NW winds 15 to 25 kt. Combined seas 6 to 7 ft. Patchy fog.
Fri..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft. Patchy fog.
PZZ600 907 Am Pdt Mon Jun 26 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z...or 8 am pdt...a 1032 mb high pressure center was located 1000 nm west of seattle washing while a 1008 mb thermal low was centered over southeast california. The high will push closer to the coast through Wednesday but will weaken along the way.

7 Day Forecast for Marine Location Near San Simeon, CA
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location: 35.65, -121.79     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 261537
afdmtr
area forecast discussion
national weather service san francisco bay area
837 am pdt Mon jun 26 2017

Synopsis Onshore wind flow today will lead to cooler
conditions through Tuesday. Modest warming is expected during the
second half of the week, however highs will fall well short of
the recent heatwave.

Discussion As of 8:37 am pdt Monday... Completed a minor
forecast grid update to account for current sky cover which is
showing mostly clear conditions for santa cruz monterey and san
benito while a deep marine layer over the bay area allowed low
clouds to push into the far east bay valleys early this morning.

Onshore gradients are around 2 mb at this hour but winds out in
the delta are howling with travis afb currently sustained at 23 kt
from the southwest and gusting to 29 kt. This will keep a cool
onshore wind flow in place today into Tuesday as a weak shortwave
moves onshore near the oregon border. Still expect morning clouds
to slowly mix out and burn back to the coast.

Forecast for the upcoming work week looks benign and seasonable
with a zonal flow aloft in place. Expect seasonable daytime highs
through midweek then perhaps slight warming later in the week
before the next trough arrives Friday Saturday with a cooling
trend.

Prev discussion As of 3:00 am pdt Monday... Clouds mostly
cleared from our CWA later yesterday but satellite shows that they
have returned to san mateo county northward. Clouds are
continuing to stream to the southeast and will be down into
monterey county by sunrise. Patchy fog and drizzle can be expected
into the morning.

Synoptically the ridge of high pressure that had been overhead is
now well to the east while the onshore flow combined with a
moderate marine layer will lead to cooler conditions compared to
yesterday especially for spots away from the coast. Highs will
range from 60s near the water with mostly 70s to mid 80s inland.

In general, temperatures will be 3 to 6 degrees cooler compared to
Sunday. Similar conditions can be expected tonight into Tuesday.

By Wednesday a ridge of high pressure will rebuild into the
pacific and toward our region. This will lead to slight warming
into Thursday. Inland highs will return to the upper 70s to lower
90s with coastal spots in the 60s to the mid 70s. Those
temperatures will hold into early next week and possibly into the
following week.

Aviation As of 06:35 am pdt Monday... Quick update to the
morning forecast. As mentioned before the non-typical marine layer
is eroding quickly around the bay. Possible right exit of upper
jet with subsidence may be to blame. None the less. Koak is now
vfr. Will keep sfo as a mixed bkn but conf is low.

Vicinity of ksfo... MVFR CIGS around sfo this morning. Based on
timing of yesterday and model guidance today will keep the 17-18z
clearing. Conf is low to moderate.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR. CIGS return tonight.

Marine As of 08:23 am pdt Monday... Light to moderate northerly
winds will persist over the coastal waters as high pressure
remains over the eastern pacific. Locally stronger winds will be
possible along the immediate coast and in san francisco bay. A
dominant southerly swell will persist into Wednesday morning.

Mtr watches warnings advisories
Tday Sca... Sf bay from 1 pm
sca... Mry bay from 1 pm
sca... Pigeon pt to pt pinos 0-10 nm from 1 pm
sca... Pt pinos to pt piedras blancas 0-10 nm
public forecast: rww
aviation: mm
marine: canepa
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46028 - CAPE SAN MARTIN - 55NM West Northwest of Morro Bay, CA 6 mi80 min NW 14 G 16 61°F 60°F4 ft1016.4 hPa (+1.0)
46239 - Point Sur, CA (157) 51 mi48 min 55°F3 ft
46215 - Diablo Canyon, CA (076) 58 mi50 min 56°F3 ft

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Paso Robles Municipal Airport, CA62 mi77 minN 410.00 miFair64°F52°F65%1016.2 hPa

Wind History from PRB (wind in knots)
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Last 24hrCalmW4NW33SW12S13S14S13SW8S9W8W12NW12NW10NW11W5W4NW4CalmCalmCalmCalmN43
1 day agoNW6W65NW7NW5S6S8SW6W8NW8NW10W7W6W5W5NW6NW6NW4NW3NW3NW5NW3Calm3
2 days agoNW3W34CalmS16S14S22
G27
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S11S6SW6NW8NW7NW7NW5W3CalmN4W4N5NW43N6

Tide / Current Tables for San Simeon, California
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San Simeon
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Mon -- 05:50 AM PDT     Sunrise
Mon -- 06:56 AM PDT     -1.46 feet Low Tide
Mon -- 08:48 AM PDT     Moonrise
Mon -- 01:43 PM PDT     4.28 feet High Tide
Mon -- 06:32 PM PDT     2.26 feet Low Tide
Mon -- 08:24 PM PDT     Sunset
Mon -- 10:50 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.35.84.631.3-0.2-1.2-1.5-1.1-0.11.22.53.54.14.33.93.32.72.32.32.73.54.45.3

Tide / Current Tables for Morro Beach, Estero Bay, California
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Morro Beach
Click for Map
Mon -- 05:50 AM PDT     Sunrise
Mon -- 06:58 AM PDT     -1.26 feet Low Tide
Mon -- 08:47 AM PDT     Moonrise
Mon -- 01:36 PM PDT     4.13 feet High Tide
Mon -- 06:33 PM PDT     1.92 feet Low Tide
Mon -- 08:22 PM PDT     Sunset
Mon -- 10:48 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.25.84.73.21.50-0.9-1.3-0.9-01.22.53.544.13.73.12.4222.43.24.25.1

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 (13,3,4,5)
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Ground Weather Radar Station Vandenberg AFB, 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.