Tuesday, December18, 2018 L-36.com


Marine Weather and Tides
Mountain Center, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:44AMSunset 4:41PM Tuesday December 18, 2018 12:06 PM PST (20:06 UTC) Moonrise 2:58PMMoonset 3:17AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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- 211 Am Pst Tue Dec 18 2018
.small craft advisory for hazardous seas in effect through this evening...
Today..Wind variable less than 10 kt...becoming nw to 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 4 to 7 ft at 18 seconds.
Tonight..Wind nw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 6 ft at 16 seconds.
Wed..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft at 15 seconds.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 4 ft at 14 seconds.
Thu..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 to 5 ft at 18 seconds.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft. Patchy fog with vsby 1 nm or less after midnight.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft. Patchy fog with vsby 1 nm or less in the morning.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft. Patchy fog with vsby 1 nm or less after midnight.
Sat..Wind se 10 kt in the morning...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft. Patchy fog with vsby 1 nm or less in the morning.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft. Patchy fog with vsby 1 nm or less after midnight.
PZZ700 211 Am Pst Tue Dec 18 2018
Synopsis for the far southern california coast.. At 1 am, a 1027 mb high was 900 nm west of san diego and a 1026 mb high was over northeast nevada. A 1018 mb low covered southern sonora, mexico. A large long-period swell will move through the coastal waters today, generating hazardous seas for small craft. Weak offshore flow develops Wednesday, continuing through Thursday. Onshore flow expected Friday and Saturday.


7 Day Forecast for Marine Location Near Mountain Center, CA
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location: 33.72, -116.68     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 181628
afdsgx
area forecast discussion
national weather service san diego ca
828 am pst Tue dec 18 2018

Synopsis
Fair with near normal temperatures today. A strong high pressure
ridge and offshore flow will bring much warmer weather Wednesday
and Thursday. Weak troughing will bring cooling and a return of
marine layer clouds Friday into the weekend. A pacific storm
could bring much cooler and wet weather for christmas.

Discussion For extreme southwestern california including orange...

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

patchy stratus and fog in the valleys will gradually clear by late
morning. Visible satellite imagery is showing some high clouds
moving in from the north. If they stick around through this
evening it could make for a nice sunset.

Fair and dry weather will prevail today as an upper level ridge of
high pressure begins to build in from the west. The ridge
strengthens and moves overhead Wednesday and Thursday. Weak
offshore flow develops at the surface and peaks Wednesday morning.

This will aid in warming west of the mountains, where high temps
will climb into the upper 70s, possibly a few low 80s by Thursday.

Gusty winds will be confined to the favored passes and coastal
mountain slopes, with isolated gusts of 25-30 mph Wednesday
morning, weakening into Thursday.

The ridge weakens and shifts east Friday into the weekend with a
pair of weak short wave troughs passing through california. This
will bring cooler weather with high temps near to slightly above
seasonal averages. Marine layer low clouds should return to the
coastal areas by Friday morning, gradually extending further
inland each night through the weekend.

The ec and GFS are still undecided about the evolution of a pair
of lows early next week. The 00z ec shows a much deeper trough
which brushes so cal and produces some light precipitation Sunday
night into Monday morning, but the GFS is much weaker and keeps
the trough well north, leaving us dry. The solutions for the
second wave are more in line in terms of general track and timing,
though the GFS is a bit more inside and drier, while the ec is
colder and wetter. Both are at least showing some precipitation on
Tuesday, so the mountain communities may be able to enjoy a white
christmas. It looks like an active pattern may stick around for
the few days following christmas. We will see what the 12z models
have in store for us.

Aviation
181620z... Coast valleys... Areas of sct-bkn low clouds with bases
1000-2500 feet msl are sticking around this hour, but should scatter
out around 17-18z. Isolated vis reduced in low lying inland pockets.

Mostly clear skies should prevail by 19z and continue through
tonight.

Marine
A large long-period swell from the wnw will continue today. It will
generate combined seas of 10-13 feet in the outer coastal waters,
creating hazardous sea conditions near shoals. The inner waters
could have some hazardous conditions near jetties and the entrance
to mission bay. Swell and seas will subside late today and
Wednesday. The small craft advisory for hazardous seas is in effect
for all coastal waters.

Beaches
High surf of 5-8 ft in orange county and 7-10 ft in san diego county
will continue today and gradually decrease late in the day. A high
surf advisory remains in effect through 10 pm tonight. Swell and
surf will subside tonight and Wednesday, although another swell
Thursday could again bring high surf.

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

Sgx watches warnings advisories
Ca... High surf advisory until 10 pm pst this evening for orange
county coastal areas-san diego county coastal areas.

Pz... Small craft advisory for hazardous seas until 10 pm pst this
evening for coastal waters from san mateo point to the
mexican border and out to 30 nm-waters from san mateo point
to the mexican border extending 30 to 60 nm out including
san clemente island.

Public... Ss
aviation marine beaches... Connolly


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46224 - Oceanside Offshore, CA (045) 56 mi36 min 64°F5 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs Regional Airport, CA13 mi73 minN 010.00 miFair66°F41°F40%1022.7 hPa

Wind History from PSP (wind in knots)
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Last 24hrCalmE5SE7SE7SE6E3S4SE3N33W3W3W3CalmNW3N3CalmNW6N9NW44SW3CalmCalm
1 day agoCalmCalmCalmE764CalmN3N5N6NW7CalmNW3W3CalmNW3NW5CalmCalmCalmS5N5CalmS3
2 days agoCalm3CalmCalmCalmW4NW3NW7NW4CalmCalmNW5NW6NW3NW6NW8NW6NW7NW7N4NW3CalmCalmCalm

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Tue -- 02:20 AM PST     Moonset
Tue -- 05:40 AM PST     5.22 feet High Tide
Tue -- 06:48 AM PST     Sunrise
Tue -- 12:34 PM PST     0.57 feet Low Tide
Tue -- 02:02 PM PST     Moonrise
Tue -- 04:45 PM PST     Sunset
Tue -- 06:26 PM PST     3.58 feet High Tide
Tue -- 11:48 PM PST     1.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.422.83.74.65.15.24.84321.10.60.611.72.53.23.53.53.12.51.91.5

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California
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Newport Bay Entrance
Click for Map
Tue -- 02:21 AM PST     Moonset
Tue -- 05:40 AM PST     5.29 feet High Tide
Tue -- 06:50 AM PST     Sunrise
Tue -- 12:36 PM PST     0.67 feet Low Tide
Tue -- 02:03 PM PST     Moonrise
Tue -- 04:46 PM PST     Sunset
Tue -- 06:30 PM PST     3.51 feet High Tide
Tue -- 11:42 PM PST     1.50 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.62.12.93.84.75.25.34.94.13.121.20.70.71.11.72.43.13.53.53.12.621.6

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 (15,3,4,5)
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Ground Weather Radar Station Santa Ana Mtns, 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.