Tuesday, December18, 2018 L-36.com


Marine Weather and Tides
Dana Point, 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 6:48AMSunset 4:47PM Tuesday December 18, 2018 3:05 AM PST (11:05 UTC) Moonrise 3:02PMMoonset 3:21AM Illumination 83% 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 Dana Point, CA
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location: 33.45, -117.68     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 180537 aaa
afdsgx
area forecast discussion
national weather service san diego ca
936 pm pst Mon dec 17 2018

Synopsis
The tail end of a storm system moving across california will bring a
few light showers along and west of the mountains tonight, along
with more clouds and cooler weather. A strong ridge will build in
midweek with fair and much warmer weather Wednesday through Friday.

The ridge will break down over the weekend leading to cooler, but
continued dry conditions. High surf will continue to pound the
beaches through Tuesday.

Discussion For extreme southwestern california including orange...

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

evening update:
no significant changes were made to the forecast this evening. Areas
of very light rain moving across the region this evening from the nw
as the tail end of a weakening frontal boundary drops into socal.

Not much accumulation expected overnight but a few spots will pick
up a few hundredths of an inch of new rainfall. Previous discussion
remains in place below.

Highlights:
* few light showers near the coast tonight
* warming trend through Thursday under a clear sky
* slight cooling this weekend; continued dry
satellite imagery shows the frontal band that was over ventura
county this morning has made its way into los angeles county, but is
continuing to fall apart. Still, there are some light radar returns
and a few light showers are possible along the coast tonight, likely
this evening across parts of orange county and late evening and
overnight across san diego county. A lesser risk of showers into the
inland valleys and coastal mountain slopes, but possible. No rain is
expected over the deserts.

An upper level ridge will build over socal behind this weakening
frontal band. The ridge will be strong and will peak in strength on
Thursday. Models have backed off on the strenght, now showing to 586-
587dm, but even so we will see some 80f-degree readings inland
(except the mountains and high desert). A clear sky will dominate.

The ridge will break down over the weekend as storm systems move in
from the pacific across washington and oregon and northern
california. This will lead to slight cooling across southern
california, but leave conditions dry.

Early next week, GFS and GEFS indicate an inside trough scenario
which supports a continuation of a dry weather regime. The
operational ECMWF continues to take a closed upper low south and
directly over socal on christmas day. QPF is low, but this scenario
would bring at least some precipitation to socal then. A dry
scenario is favored at this time.

Aviation
180500z... Coast valleys... Bkn low clouds will prevail tonight with
cigs 1500-6000 ft msl and, a few light showers possible though 11z.

Vis of 3-5 miles is expected for inland valleys where low clouds
near terrain. Most areas should clear by mid Tue morning.

Mountains deserts... Local mountain obscurations will occur in
clouds fog through early Tue morning. A few light showers are
possible tonight, withVFR conditions expected Tue late morning.

Marine
A large long-period swell from the wnw will continue through
Tuesday. 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 as well,
especially near jetties and the entrance to mission bay. Swell and
seas will subside late Tuesday and Wednesday. The small craft
advisory for hazardous seas is in effect for all coastal waters (30-
60 nm off the coast) through 10 pm Tuesday.

Beaches
A high surf advisory remains in effect through Tuesday evening. A
west northwest swell of 10-13 ft in the outer waters with a period
of 18-20 sec from 290 degrees will impact the area through Tuesday.

Surf of 6-11 feet is likely with sets to 13 ft possible, highest
south of del mar. Strong rip currents and dangerous swimming
conditions at all beaches. Swell and surf will gradually lower on
Wednesday, though another large swell could again bring elevated
surf Thursday or Friday.

Skywarn
Skywarn activation will not be needed.

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

Pz... Small craft advisory for hazardous seas until 10 pm pst Tuesday
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... Gregoria jmb
aviation marine beaches... Jjt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46224 - Oceanside Offshore, CA (045) 22 mi36 min 63°F5 ft
46253 28 mi36 min 63°F6 ft
46256 33 mi36 min 62°F5 ft
PRJC1 33 mi36 min E 1.9 G 2.9
AGXC1 35 mi36 min WNW 1.9 G 1.9 59°F 1022.2 hPa
PFXC1 35 mi36 min E 1.9 G 1.9 59°F
PFDC1 36 mi36 min N 1 G 1
46222 - San Pedro, CA (092) 36 mi36 min 62°F8 ft
PSXC1 36 mi36 min E 1.9 G 2.9
OHBC1 - 9410660 - Los Angeles, CA 37 mi42 min 63°F1022.3 hPa
BAXC1 37 mi36 min E 1 G 1.9
PXAC1 38 mi36 min NE 1 G 1
46225 - Torrey Pines Outer, CA (100) 39 mi36 min 64°F7 ft
46254 46 mi36 min 63°F4 ft
LJPC1 - La Jolla, CA (073) 46 mi46 min Calm 4 ft
LJAC1 - 9410230 - La Jolla, CA 46 mi42 min SSE 1.9 G 1.9 59°F 62°F1021.7 hPa
46258 49 mi36 min 64°F7 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mcolf Camp Pendleton (Red Beach), CA17 mi70 minE 410.00 miPartly Cloudy0°F0°F%1022 hPa
John Wayne-Orange County Airport, CA19 mi13 minESE 310.00 miFair56°F53°F90%1021.9 hPa
Oceanside, Camp Pendleton, Marine Corps Air Station, CA20 mi11 minN 010.00 miFair48°F48°F100%1022.2 hPa
Oceanside, Oceanside Municipal Airport, CA24 mi14 minN 06.00 miFog/Mist51°F51°F100%1021.8 hPa

Wind History from NXF (wind in knots)
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Last 24hr------SE44N7CalmSW3W5SW5SW6S5SW5W4W7W8W7NW9NW5N3E4NE5NE5E4
1 day agoE8SE5N3N4E6--------------------------------------
2 days ago------------------------------------------------

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 (6,6,7,8)
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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.