Monday, August19, 2019 L-36.com


Marine Weather and Tides
San Simeon, CA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:24AMSunset 7:52PM Monday August 19, 2019 2:15 PM PDT (21:15 UTC) Moonrise 9:23PMMoonset 9:09AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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- 203 Pm Pdt Mon Aug 19 2019
.small craft advisory in effect through late Tuesday night...
Tonight..NW winds 15 to 25 kt. Combined seas 5 to 6 ft dominant period 8 seconds. Patchy fog.
Tue..NW winds 15 to 25 kt, becoming 20 to 30 kt in the afternoon. Combined seas 6 to 7 ft dominant period 8 seconds. Patchy dense fog with visibility 1 nm or less in the morning.
Tue night..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft dominant period 7 seconds. Patchy dense fog with visibility 1 nm or less after midnight.
Wed..NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 6 to 7 ft dominant period 7 seconds. Patchy dense fog with visibility 1 nm or less in the morning.
Wed night..NW winds 20 to 30 kt. Combined seas 7 to 9 ft dominant period 6 seconds. Patchy fog after midnight.
Thu..NW winds 15 to 25 kt. Combined seas 7 to 8 ft dominant period 6 seconds. Patchy fog in the morning.
Thu night..NW winds 15 to 25 kt, becoming 10 to 20 kt after midnight. Combined seas 6 to 8 ft dominant period 6 seconds. Patchy fog after midnight.
Fri..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft. Patchy fog.
Sat..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft. Patchy fog.
PZZ600 203 Pm Pdt Mon Aug 19 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z, or 1 pm pdt, a 1019 mb surface high was located about 700 nm west of point conception. A 1002 mb thermal low was centered near las vegas.


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 192051
afdmtr
area forecast discussion
national weather service san francisco bay area
151 pm pdt Mon aug 19 2019

Synopsis A deep marine layer will prevail through today,
maintaining widespread morning low clouds and cooler than normal
inland temperatures. Warmer temperatures will develop by midweek
and continue through the upcoming weekend as high pressure
rebuilds.

Discussion As of 1:52 pm pdt Monday... The deep marine layer
has prevented the usual mid-day clearing across parts of the san
francisco bay area and central california coast. As of 1 pm pdt,
monterey, san francisco, and oakland airports were all still
reporting overcast skies. While the slow and gradual clearing
trend is expected to continue as the afternoon progresses, some
locations along the immediate pacific coast may not see the sun
shine at all today. The clouds are influencing temperature trends
this afternoon as most airports are running about 2 to 7 degrees
cooler than 24 hours ago. By the time the afternoon concludes,
high temperatures will reach the 60s along the immediate coast and
70s to 80s for inland locations. The low clouds are expected to
return again tonight with the chance of some light drizzle along
the pacific coast.

Synoptically, an upper level ridge presently centered over the
southern plains is forecast to build and broaden westward towards
the desert southwest and baja california over the next several
days. This will result in a gradual compression of the marine
layer by the middle of the week. Additionally, a noticeable
warming trend will take place through at least mid-week with the
most significant day-to-day warm-up occurring from Tuesday to
Wednesday. Low 90s will become increasingly more likely on
Wednesday across some of the region's typical hot spots such as
king city, gilroy, livermore, and even santa rosa. Can't rule out
some rural far-inland locations approaching the upper 90s low
100s, but at this point don't think last the MAX temperatures
achieved last week will be repeated this week for the core
population centers.

Forecast guidance shows an upper level trough approaching the
pacific northwest on Wednesday and Thursday with some
precipitation potential for parts of oregon and washington state.

While the san francisco bay area will be well south of any
precipitation chances, the positioning of this trough will help
prevent additional warming for our region. The current forecast by
late week and into the weekend calls for forecast highs to
generally fall within a several degrees of normal along the coast
with inland locations at or slightly above normal.

As mentioned in the previous overnight discussion, models are
suggesting the potential for an uptick in tropical activity well
to our south along the baja california coast by the weekend and
into early next week. There still remains plenty of uncertainty
this far out, but will have to keep tabs on any development as
northbound moisture transport to parts of the southern california
coast and possibly even the central california coast isn't
completely out of the question by early next week.

Aviation As of 10:36 am pdt Monday... For 18z tafs. The marine
layer is still fairly deep at around 2500 ft agl per the fort ord
profiler. Satellite imagery shows stratus remains over much of
the region this morning, but is finally beginning to dissipate.

Vfr conditions to prevail by this afternoon with clearing
currently expected between 18z-20z. MVFR to ifr CIGS to return
this evening and prevail again overnight for most sites.VFR
conditions will last later into the evening for more inland
locations. W to SW winds this morning increasing this afternoon to
10-15 kt with locally higher gusts at ksfo.

Vicinity of ksfo... MVFR CIGS to continue until around 19z-20z.VFR
conditions expected this afternoon with models showing an earlier
return of MVFR CIGS this evening. SW to W winds around 10 kt this
morning increasing to 15 kt this afternoon with gusts 20-25 kt
after around 20z-21z.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... MVFR ceilings until 18z-20z. Satellite
shows a decent feed of stratus into the peninsula. It is possible
that MVFR CIGS could linger around kmry longer than currently
forecast. Will keep an eye on satellite obs and update the TAF as
needed. Light winds this morning turning onshore in the afternoon
and increasing to 10-15 kt.VFR conditions expected in the
afternoon before MVFR CIGS return early to mid evening and for the
overnight hours.

Marine As of 8:12 am pdt Monday... Generally light winds today
and tonight across the coastal waters as high pressure off the
california coast weakens and a surface low develops offshore of
the pacific northwest. Locally gusty winds are expected later
today and into tomorrow over the inner coastal waters south of
point sur. Mixed seas will continue with shorter period northwest
waves at around 8 to 10 seconds, a light longer period west swell,
and a light southerly swell.

Mtr watches warnings advisories
Tngt Sca... Pt pinos to pt piedras blancas 0-10 nm from 3 am
public forecast: rowe
aviation: as
marine: as
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46239 - Point Sur, CA (157) 51 mi16 min 62°F3 ft
46215 - Diablo Canyon, CA (076) 58 mi16 min 59°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 mi23 minSSW 1210.00 miFair80°F53°F39%1014 hPa

Link to 5 minute data for KPRB

Wind History from PRB (wind in knots)
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Last 24hrS11SW11SW11
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S16S13S9S9--SW3----N6NE3E3E3Calm--CalmNW3W4--
1 day agoSW13
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SW15S16SW15S14S13S12S9S7SW4----SW5SW6SW5SW4----SW5SW6SW7SW7SW9
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--S15S12--SW9--CalmW3--SE6S7Calm--S8S8SW9S9SW11SW10
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Tide / Current Tables for San Simeon, California
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San Simeon
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Mon -- 12:25 AM PDT     4.87 feet High Tide
Mon -- 06:26 AM PDT     Sunrise
Mon -- 07:03 AM PDT     0.81 feet Low Tide
Mon -- 10:06 AM PDT     Moonset
Mon -- 01:27 PM PDT     4.37 feet High Tide
Mon -- 07:14 PM PDT     1.99 feet Low Tide
Mon -- 07:49 PM PDT     Sunset
Mon -- 10:20 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.84.84.33.62.61.71.10.811.62.43.344.34.343.42.72.222.12.53.13.7

Tide / Current Tables for Morro Beach, Estero Bay, California (2)
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Morro Beach
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Mon -- 12:25 AM PDT     4.72 feet High Tide
Mon -- 06:25 AM PDT     Sunrise
Mon -- 07:01 AM PDT     0.79 feet Low Tide
Mon -- 10:05 AM PDT     Moonset
Mon -- 01:27 PM PDT     4.24 feet High Tide
Mon -- 07:12 PM PDT     1.93 feet Low Tide
Mon -- 07:47 PM PDT     Sunset
Mon -- 10:19 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.74.64.23.42.51.610.811.62.43.23.84.24.23.83.32.62.21.922.433.6

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 (17,4,5,8)
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Ground Weather Radar Station Vandenberg AFB, 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.