Sunday, May20, 2018 L-36.com


Marine Weather and Tides
Palm Desert, CA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 5:39AMSunset 7:44PM Sunday May 20, 2018 4:31 AM PDT (11:31 UTC) Moonrise 10:59AMMoonset 12:14AM 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 141 Am Pdt Sun May 20 2018
Today..Wind W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 8 seconds and sw 2 ft at 15 seconds. Patchy drizzle in the morning.
Tonight..Wind W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 8 seconds and sw 2 ft at 15 seconds.
Mon..Wind sw 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less. Mixed swell W 4 ft at 8 seconds and sw 2 ft at 18 seconds.
Mon night..Wind sw 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 to 5 ft at 10 seconds and sw 2 to 3 ft at 18 seconds.
Tue..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 10 seconds and sw 3 ft at 18 seconds.
Tue night..Wind W 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 3 to 4 ft.
Wed..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 ft and sw 3 to 4 ft.
Wed night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 3 to 4 ft.
Thu..Wind W 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 2 to 3 ft and S 4 ft.
Thu night..Wind W 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 3 ft and S 3 to 4 ft.
PZZ700 141 Am Pdt Sun May 20 2018
Synopsis for the far southern california coast..At 1 am, a 1027 mb high was about 1460 nm west of san diego, and a 1004 mb low was near laughlin. Mostly moderate onshore flow will prevail through next Thursday, with a coastal eddy at times.

7 Day Forecast for Marine Location Near Palm Desert, CA
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location: 33.74, -116.36     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 201113 cca
afdsgx
area forecast discussion
national weather service san diego ca
412 am pdt Sun may 20 2018
corrected to add beaches section

Synopsis
A trough along the west coast and a coastal eddy will continue
cool weather today with extensive night and morning low clouds
along and west of the mountains. Sunny skies will continue over
the mountains and deserts with gusty west winds at times. On
Monday and Tuesday a deeper low pressure system will bring
additional cooling and a chance for afternoon showers and
thunderstorms over the mountains and high deserts. It will be dry
and a little warmer Wednesday through Friday.

Discussion For extreme southwestern california including orange...

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

extensive low clouds again this morning given a deep marine layer
and onshore flow. Clouds will be slow to clear again today with
partly to mostly cloudy conditions likely near the coast most of
the day. Temperatures will again be on the cool side except near
the coast which will actually be near normal.

On Monday an anomalously cold upper low pressure area will drop
into the mojave desert and linger through Tuesday slowly moving
ne. This will help to increase the onshore flow and bring gusty
winds to the mountains and deserts with some blowing dust sand
possible in the lower deserts. At this time winds are likely to be
marginal for a wind advisory with occasional gusts of 45 mph
mainly in the riverside and san diego county mountains and
deserts.

Proximity to the upper low will bring enough forcing and
instability with a narrow ribbon of mid level moisture to generate
scattered showers and perhaps a few thunderstorms over the
riverside and san bernardino county mountains and the mojave
desert portion of san bernardino county. With modest moisture
parameters any thunderstorms that do form could be capable of
gusty downdraft winds and dry lightning. Pops were increased a bit
with this forecast mainly over the san bernardino mountains on
Monday.

Weak ridging is likely to develop Wednesday through Friday with
some warmer weather for inland locations, meanwhile the marine
layer should retreat a bit with low clouds staying a little closer
to the coast than the last several days.

The latest medium range models are trending with a little better
consensus regarding the potential for another anomalous upper
low. The latest trends look to shift the track of the upper low
further north again more over norcal with a drier flow over socal.

Even with this pattern we should expect a deeper marine layer at
the coast and a more favorable pattern for the potential for
strong winds.

Aviation
200905z... Coast valleys... Widespread ovc low clouds cover the areas
west of the mountains again this morning. Bases are 1500-2500 ft msl
with tops to 3000 ft msl. Higher terrain will be obscured at times,
with areas of vis 1-3 miles and locally 1 mile or less where clouds
and terrain intersect. Slow clearing will begin inland after 16z,
with only partial clearing within 15 miles of the coast. Low clouds
increasing in coverage again this evening with similar bases and
tops.

Mountains deserts... Mostly clear skies with unrestricted vis through
this evening.

Marine
No hazardous marine conditions are expected through Thursday.

Beaches
A long period south-southwest swell from 200 degrees will begin to
build late on Monday, peaking Tuesday afternoon into Wednesday at 3-
4 ft 17-19 sec. The swell will very slowly lower late Thursday and
Friday. This will likely result in a period of high surf along
southwest facing beaches Tuesday into Thursday. Strong rip and
longshore currents and minor beach erosion are also possible during
this period.

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

Sgx watches warnings advisories
Ca... None.

Pz... None.

Public... Brotherton
aviation marine... Pg


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46242 - Camp Pendleton Nearshore, CA (043) 68 mi64 min 63°F3 ft
46224 - Oceanside Offshore, CA (045) 71 mi32 min 64°F3 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs Regional Airport, CA10 mi39 minN 010.00 miFair68°F53°F59%1007.4 hPa
Palm Springs, Jacqueline Cochran Regional Airport, CA12 mi40 minNNW 910.00 miFair72°F52°F50%1006.3 hPa

Wind History from PSP (wind in knots)
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Last 24hrSE4CalmW10W11NW12
G17
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N8NW9
G16
N8N11
G17
NW13NW12NW14
G21
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NW13NW13NW9W43NW3SE5Calm
1 day ago3SE4--CalmNW6NW11
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2 days agoE3CalmCalmSE4CalmNW12
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G36
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W7SE4CalmCalmSE4E3

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Sun -- 12:18 AM PDT     Moonset
Sun -- 12:56 AM PDT     5.23 feet High Tide
Sun -- 05:46 AM PDT     Sunrise
Sun -- 08:31 AM PDT     -0.64 feet Low Tide
Sun -- 11:04 AM PDT     Moonrise
Sun -- 03:31 PM PDT     3.73 feet High Tide
Sun -- 07:47 PM PDT     Sunset
Sun -- 08:22 PM PDT     2.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
55.254.33.220.8-0.1-0.6-0.6-0.10.71.72.63.33.73.73.432.72.42.52.83.3

Tide / Current Tables for La Jolla (Scripps Institution Wharf), California
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La Jolla (Scripps Institution Wharf)
Click for Map
Sun -- 12:15 AM PDT     Moonset
Sun -- 12:47 AM PDT     5.20 feet High Tide
Sun -- 05:46 AM PDT     Sunrise
Sun -- 08:27 AM PDT     -0.59 feet Low Tide
Sun -- 11:04 AM PDT     Moonrise
Sun -- 03:40 PM PDT     3.58 feet High Tide
Sun -- 07:44 PM PDT     Sunset
Sun -- 08:09 PM PDT     2.61 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.15.24.94.13.11.90.8-0.1-0.5-0.5-0.10.71.62.53.13.53.63.43.12.82.62.733.5

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (7,2,3,4)
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Ground Weather Radar Station San Diego, 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.