Monday, September25, 2017 L-36.com


Marine Weather and Tides
Templeton, 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 6:52AMSunset 6:55PM Monday September 25, 2017 8:49 PM PDT (03:49 UTC) Moonrise 11:00AMMoonset 9:37PM Illumination 30% Phase: Waxing Crescent; Moon at 5 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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PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 816 Pm Pdt Mon Sep 25 2017
Tonight..NW winds 10 to 15 kt... Becoming 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds.
Tue..Winds variable 10 kt or less...becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 to 5 ft at 9 seconds.
Tue night..NW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds.
Wed..Winds variable 10 kt or less...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds.
Wed night..NW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds.
Thu..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds.
Thu night..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 ft at 9 seconds.
Fri..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 3 to 5 ft.
Sat..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 6 ft.
PZZ600 816 Pm Pdt Mon Sep 25 2017
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 8 pm pdt....A 1021 mb surface high was centered in idaho. A 1005 mb low was centered in southeastern ca with a thermal trough extending northwestward into coastal southern ca. This trough will move off the coast late tonight and Tuesday morning, allowing for some locally gusty offshore winds to develop across the inner waters.

7 Day Forecast for Marine Location Near Templeton, CA
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location: 35.56, -120.71     debug


Area Discussion for - Los Angeles/Oxnard, CA
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Fxus66 klox 260320
afdlox
area forecast discussion
national weather service los angeles oxnard ca
820 pm pdt Mon sep 25 2017

Synopsis
Gradually strengthening offshore flow will bring a warming and
drying trend with mostly clear skies to the area through this week
and into the weekend. There will be some gusty north to northeast
winds at times over the region, especially below and through
passes and canyons. Temperatures will be a few degrees above
normal for many areas early this week, then increase to much
above normal for late this week and into the weekend.

Short term (mon-thu)
max temps jumped up several degrees across the region today, with
temps reaching or slightly exceeding 90 degrees in a few
locations in the valleys and across interior sections of the
coastal plain. Pressure gradients were running around 2 mb
offshore between klax and kdag, slightly more offshore than
forecast by the models. A band of fairly thick high clouds
streamed southward across l.A. County early this evening, but was
currently exiting the county, so clear skies should prevail
overnight. So far, there were just some locally gusty north winds
through and below passes and canyons of the santa ynez range this
evening. Models continue to show offshore gradients increasing
overnight and some increase in upper level support, so expect
areas of gusty northeast winds across vtu county, and the
mountains and northern and western valley areas of l.A. County.

However, it looks as though winds will remain below advisory
levels in most areas late tonight and Tue morning, although local
advisory level gusts are certainly possible in the more wind prone
locations. The WRF shows some lowering of heights and thicknesses
across the region on Tue as an upper low drops southward through
nv. However, it also shows a bit of warming at 950 mb, and
offshore flow will be a bit stronger. This should bring some
warming to areas west of the mountains on tue, but if the GFS is
as far west with the upper low as is the wrf, MAX temps may have
to be lowered a couple of degrees in many areas.

*** from previous discussion ***
on Wednesday gradients and upper support weaken and models show a
little eddy spinning up and pulling in some low level moisture
from the south that could allow some low clouds and fog to creep
up from the south. But even if low clouds do not form coast valley
temps should cool a few degrees and potentially more than what is
currently forecast. Some mixed signals for Thu but likely minimal
change overall. Low level temps are warmer but gradients trend
slightly onshore so those factors likely will cancel each other
out. If low clouds manage to work their way into la county
Wednesday they will likely still be around Thu and forecast highs
will almost certainly be too warm.

Long term (fri-mon)
models are definitely trending away from the ridge pattern through
the weekend and gradients generally trend more onshore each day.

So a few degrees have been trimmed off the forecast highs and more
trimming may be needed if this continues, especially Sunday into
Monday as both the GFS and ECMWF show a pretty strong upper low
moving into the pac NW late in the weekend. Low clouds would
likely return by the weekend as well if models don't flip back
around to a warmer pattern.

Aviation 25 2340z.

At 23z, there was no marine inversion at klax.

Skies will be clear through the period withVFR conds. Gusty ne-n
will affect portions of l.A. And vtu counties late tonight through
early Tue afternoon. Periods of moderate to strong wind shear and
moderate to strong uddfs are possible late tonight Tue morning,
mainly at terminals south of point conception.

Klax... Very high confidence inVFR conditions thru the period.

There will likely be moderate wind shear thru 04z, then there is
a 30-40% chance of wind shear between 04z and 19z. There is a
10-20% chance of east winds greater than 7 knots between 08z and 16z.

Kbur... Very high confidence inVFR conditions thru the period. There
is a 40% chance of wind shear through 13z, then moderate wind shear
is likely between 13z and 20z.

Marine 25 830 pm.

Moderate to high confidence in the current forecast. Main concern
is the developing northeast winds across the inner waters late
tonight and into Tuesday morning.

Winds and seas will likely remain below small craft advisory
levels across the outer and northern inner waters through at least
Friday. Winds will likely increase over the weekend.

For the inner waters, winds and seas are expected to remain below
small craft advisory levels through Friday. However, there is a
30 percent chance of small craft advisory north to northeast
winds late each night through the morning until Thursday across
the nearshore waters from ventura south to santa monica.

Fire weather 25 1130 am.

A long duration of elevated fire danger expected to continue
across portions of southwest california through this upcoming
weekend. Weak to occasionally moderate offshore flow is expected
during this period which will continue to support a prolonged
period of very warm and dry conditions to the region.

In the short term, offshore pressure gradients are expected to
peak today and Tuesday when lax-daggett gradients are expected to
range between -3 and -4 mb each morning. There is the potential
for a slight ramp up in upper level support on Tuesday and
Wednesday as computer models continue to show the potential for a
cutoff low pressure system to develop near the colorado river
valley. Offshore winds are expected to be the strongest across
the mountains today and Tuesday with some weakening for Wednesday
(including the santa monica mountains) when gusts between 30 and
40 mph are expected with local gusts to around 45 mph. Gusts
between 25 and 35 mph are likely for wind prone valley and
interior coastal areas. Offshore flow is expected to be weaker on
Thursday and Friday, then potentially nudge upward again by
Sunday.

This prolonged period of offshore flow will bring widespread
minimum humidities between 10 and 20 percent for areas away from
the coast through next weekend, along with poor overnight
recoveries across the mountains, foothills, and wind exposed
locations. In addition, there will be a prolonged period of very
warm temperatures with highs climbing into the 90s much of this
week in the valleys, and triple digit readings possible Friday
through next weekend. The above mentioned fire weather conditions
combined with fuels becoming critically dry will support this long
duration of elevated fire danger, with an increased risk for
large fires and erratic fire behavior. Brief critical fire weather
conditions are likely for areas with strongest winds today,
Tuesday and possibly Wednesday. Local or brief critical fire
weather conditions may return by Sunday.

Lox watches warnings advisories
Ca... None.

Pz... None.

Hazard potential outlook (thu-mon)
no significant hazards expected.

Public... Mw db
aviation... Db
marine... Hall db
fire... Munroe gomberg
synopsis... Sweet
weather.Gov losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 26 mi53 min 58°F4 ft
PSLC1 - 9412110 - Port San Luis, CA 27 mi50 min N 1.9 G 4.1 73°F 57°F1010.3 hPa (+0.7)
CPXC1 27 mi30 min SSW 4.1 G 5.1 69°F 1010.3 hPa43°F
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 45 mi60 min NNW 16 G 18 63°F 64°F5 ft1009.9 hPa (+0.4)

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Paso Robles Municipal Airport, CA9 mi57 minNNW 910.00 miFair70°F33°F26%1010.3 hPa
San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA22 mi54 minN 010.00 miFair68°F42°F39%1009.8 hPa

Wind History from PRB (wind in knots)
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Last 24hrSW3CalmCalmCalmCalmCalmCalmE3CalmCalmE3CalmCalm33N4N7--6CalmSE3E8E7NW9
1 day agoNW8NW6NW4CalmE4E5E3CalmCalmSE4CalmCalmCalmCalm43N44E10
G15
CalmSW4SE5E93
2 days agoNW14
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NW7NW9NW9NW8N5CalmE3E3E5CalmSE3CalmCalm3NW7NW65N9
G14
N5W7SW8SW6NW7

Tide / Current Tables for Morro Beach, Estero Bay, California
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Morro Beach
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Mon -- 02:13 AM PDT     3.47 feet High Tide
Mon -- 06:53 AM PDT     Sunrise
Mon -- 07:17 AM PDT     2.26 feet Low Tide
Mon -- 12:00 PM PDT     Moonrise
Mon -- 01:42 PM PDT     4.53 feet High Tide
Mon -- 06:55 PM PDT     Sunset
Mon -- 09:03 PM PDT     1.30 feet Low Tide
Mon -- 10:38 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.93.33.53.43.12.82.42.32.32.63.13.64.14.54.54.33.83.12.51.91.51.31.41.7

Tide / Current Tables for Morro Bay, California
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Morro Bay
Click for Map
Mon -- 02:59 AM PDT     2.84 feet High Tide
Mon -- 06:53 AM PDT     Sunrise
Mon -- 08:06 AM PDT     2.02 feet Low Tide
Mon -- 12:00 PM PDT     Moonrise
Mon -- 02:42 PM PDT     4.01 feet High Tide
Mon -- 06:55 PM PDT     Sunset
Mon -- 10:15 PM PDT     0.83 feet Low Tide
Mon -- 10:38 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.92.32.72.82.72.52.32.122.12.32.73.23.63.943.73.22.621.410.80.9

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Los Angeles/Oxnard, CA (23,6,7,8)
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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.