Saturday, August24, 2019 L-36.com


Marine Weather and Tides
San Jacinto, 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 6:14AMSunset 7:26PM Friday August 23, 2019 9:53 PM PDT (04:53 UTC) Moonrise 12:00AMMoonset 1:36PM Illumination 38% Phase: Third Quarter Moon; Moon at 23 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 130 Pm Pdt Fri Aug 23 2019
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and sw 2 to 3 ft at 16 seconds.
Sat..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and sw 2 to 3 ft at 15 seconds.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 to 4 ft at 13 seconds.
Sun..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 12 seconds and S 2 to 4 ft at 12 seconds.
Sun night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 12 seconds and S 3 to 4 ft at 11 seconds.
Mon..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 to 4 ft.
Mon night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 2 to 3 ft.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 ft and S 2 to 3 ft.
Tue night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 ft and S 2 ft.
Wed..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 1 to 2 ft.
Wed night..Wind nw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 2 to 3 ft.
PZZ700 130 Pm Pdt Fri Aug 23 2019
Synopsis for the far southern california coast.. At 2 pm, a 1005 mb low was near needles and a 1012 mb high was off the coast of san diego. A weak coastal eddy circulation will continue overnight, followed by weak onshore flow through Wednesday.


7 Day Forecast for Marine Location Near San Jacinto, CA
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location: 33.81, -117     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 240411
afdsgx
area forecast discussion
national weather service san diego ca
910 pm pdt Fri aug 23 2019

Synopsis
High pressure is building over the state, and will thin the marine
layer and limit nocturnal low cloud development. It will also boost
daytime temperatures. Expect very warm to hot conditions inland,
with some warming over coastal areas as well, especially prior to
sea breeze onset. Some moisture will move in from the east, but no
showers or thunderstorms are expected.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino
counties...

at 9 pm pdt... Satellite imagery showed patchy high clouds drifting
to the SW over socal, with all the low marine clouds well offshore.

Monsoonal thunderstorms were occurring over SE az and sonora mx. The
00z miramar sounding still indicated a fairly deep marine layer near
2k ft, topped by a 5c inversion. Winds through the mid-levels were
se 10-15 kt. Weak to moderate sfc pressure gradients continued from
the coast to the deserts with peak w-sw wind gusts of 20-30 mph.

It looks like there is at least a potential to exceed forecast max
temps on Saturday over inland coastal and western valley areas,
depending on the onset of the sea breeze. Not enough confidence to
make forecast changes this evening though.

From previous discussion...

our coastal eddy keeps on cranking, but low clouds cleared out
fully and nicely this morning. The eddy will gradually fade
tonight. Low clouds will move ashore and inland overnight, but
probably not as far as they got this morning. A gulf surge is
probable in the lower desert again Saturday morning, a sort of
desert style marine layer. They should get some low clouds out
there, but not full overcast. A trough of low pressure moving
through the interior west today will quickly lift out and allow a
nose of high pressure from the pacific to build into california.

That will take care of the eddy. This banana-shaped ridge extends
from san francisco to phoenix on Sunday and Monday. That will tamp
down our marine layer so that clouds only cover the coastal areas
nights and mornings. It will also bring us a modest warming trend
through about Tuesday. The ridge weakens slightly to back off
temps a couple degrees around the middle of next week. Some
increase in monsoon moisture at mid levels of the atmosphere is
happening this weekend, but with little if any instability. That
means we'll see some cumulus clouds over the mountains during the
afternoons, and nothing more. That moisture retreats for a few
days, then models depict a return later next week. Maybe the
following weekend we get a chance of thunderstorms. Or not.

That's what we've been saying for the last couple weeks when we
were thinking we might get thunderstorms today. Needless to say,
confidence is really low. The monsoon season is quietly slipping
by without too many thunderstorm days; our next tstorm might not
arrive until september. What impact will ivo have on socal? None
in the weather department, but we do expect him to bump up in the
swell and surf (see beaches discussion below). The high pressure
could build a little stronger over socal toward next weekend,
which would bring us another modest warming trend.

Aviation
240400z... Coast valleys... Stratus will be much less widespread
tonight, with areas of bkn-ovc CIGS developing within 10 miles of
the coast 06z-10z sat. Bases will be 1200-1500 ft msl with tops to
1700 ft msl. Most vis will remain 5+ miles. Most areas will clear
15z-17z sat, withVFR conditions prevailing after 17z sat, likely
continuing Sat evening.

Mountains deserts... Mostly clear with unrestricted visibility
through Saturday evening.

Marine
No hazardous marine conditions are expected through Wednesday.

Beaches
South-southeast swells from 160-170 degrees with a 12-14 sec period
generated by tropical storm ivo will reach the beaches of southern
california late Saturday, peaking Sunday before lowering Monday and
Tuesday. These swells could produce isolated surf up to 6 ft and
strong rip currents on the more southerly-facing beaches of orange
county. West facing beaches, mainly in san diego county, will have
little or no effects. A beach hazards statement is in effect for
orange and san diego county beaches Saturday night through Tuesday
morning with biggest impacts being strong rip currents and longshore
currents.

Skywarn
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

Sgx watches warnings advisories
Ca... Beach hazards statement from late Saturday night through Tuesday
morning for orange county coastal areas-san diego county
coastal areas.

Pz... None.

Public... 10 mm
aviation marine beaches... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46224 - Oceanside Offshore, CA (045) 50 mi54 min 72°F3 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Riverside / March Air Force Base, CA15 mi2.9 hrsWNW 710.00 miFair84°F57°F41%1009 hPa
San Bernardino Intl. Airport, CA24 mi2.1 hrsWSW 97.00 miClear90°F51°F27%1009.5 hPa

Link to 5 minute data for KRIV

Wind History from RIV (wind in knots)
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Last 24hrNW6W3NW3W3NW4W5NW4CalmW3W4CalmCalmCalmN3N7W8--N3NW7NW8NW9W7W4Calm
1 day agoCalmCalmW3CalmCalmCalmCalmCalmCalmCalmSE4E3CalmE4NW9W9NW9NW10NW9NW11NW9NW7NW8NW4
2 days agoNW6NW3CalmW3CalmCalmCalmCalmCalmCalmCalmCalmCalmN3W6W8W9W4NW8NW10NW10NW7NW4NW5

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Sat -- 12:21 AM PDT     Moonrise
Sat -- 05:43 AM PDT     3.01 feet High Tide
Sat -- 06:19 AM PDT     Sunrise
Sat -- 09:44 AM PDT     2.60 feet Low Tide
Sat -- 02:38 PM PDT     Moonset
Sat -- 04:38 PM PDT     4.92 feet High Tide
Sat -- 07:25 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.72.12.52.8332.92.82.62.62.73.13.54.14.54.94.94.64.13.32.51.71.1

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California
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Newport Bay Entrance
Click for Map
Sat -- 12:22 AM PDT     Moonrise
Sat -- 06:02 AM PDT     3.02 feet High Tide
Sat -- 06:19 AM PDT     Sunrise
Sat -- 09:32 AM PDT     2.74 feet Low Tide
Sat -- 02:40 PM PDT     Moonset
Sat -- 04:41 PM PDT     5.00 feet High Tide
Sat -- 07:27 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.722.42.72.9332.92.82.82.93.23.64.14.64.954.74.23.42.61.81.2

Weather Map and Satellite Images
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wmap_P
GOES Local Image of Southwest    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (0,6,7,8)
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Ground Weather Radar Station Santa Ana Mtns, 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.