Monday, July13, 2020
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Marine Weather and Tides
Palm Desert, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:43AMSunset 7:58PM Monday July 13, 2020 8:21 AM PDT (15:21 UTC) Moonrise 12:45AMMoonset 1:41PM Illumination 43% 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- 142 Am Pdt Mon Jul 13 2020
Today..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 to 3 ft at 9 seconds.
Tonight..Wind W to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and S 2 ft at 10 seconds.
Tue..Wind W to 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and S 2 ft at 10 seconds.
Tue night..Wind W to 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and S 1 to 2 ft at 10 seconds.
Wed..Wind W to 10 kt...becoming 10 to 15 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 2 to 3 ft at 6 seconds and S 1 ft at 10 seconds.
Wed night..Wind nw 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 ft and sw 1 ft.
Thu..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft and S 1 ft.
Thu night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 1 to 2 ft.
Fri..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft and S 1 to 2 ft.
Fri night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
PZZ700 142 Am Pdt Mon Jul 13 2020
Synopsis for the far southern california coast.. Weak to occasionally moderate onshore flow will prevail through Thursday, with the gustier winds restricted to the outer waters each afternoon and evening, with gusts nearing 20 kts Tuesday and Wednesday. Otherwise, no hazardous marine conditions are expected through Friday.


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 130937 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 236 AM PDT Mon Jul 13 2020

SYNOPSIS. High pressure over the Southwest will weaken and shift east this week, easing the heat across the region. Onshore flow will increase, further strengthening the westerly winds over the mountains and deserts, building the marine layer inland. After one more very hot day in the deserts, seasonally warm July weather will prevail for the remainder of the week with periods of night and morning low clouds and fog west of the mountains.

DISCUSSION. FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE . SAN DIEGO . WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES .

Marine stratus was rapidly expanding offshore and spreading inland at 2 AM PDT in response to increasing onshore sfc pressure gradients. Westerly winds of 20-30 MPH with gusts of 40-50 MPH were reported through the San Gorgonio Pass, but most other onshore wind-prone areas of the mts/deserts had dropped off to 15-25 MPH or less. South winds along the coast early this morning due to a Catalina Eddy, seem to be transporting some of the smoke from the fire aboard the Bonnhommee Richard northward over coastal and western valley areas. Even if not visible, the odor may be detectable in some areas this morning before winds shift.

Expect gusty westerly winds to continue for at least the next few days through the passes and into the desert areas, helping to take a bit of the sharp edge off of the daytime heat. For today, the an Excessive Heat Warning continues for the deserts, but cooling will be much more efficient west of the mountains with the marine layer rebuilding. The inland penetration of nocturnal low clouds and fog will confirmation it's arrival.

Cooler weather is on the way for the next few days as the strong high pressure ridge aloft weakens over the SW and is replaced by a weak trough along the West Coast. The trough is basically the result of two strong ridges, one over the EastPac, and the shifting SW ridge, which is relocating to the Southern Great Plains. This appears to be a fairly stable hemispheric pattern, based on the global model solutions, so it is likely to persist for awhile. There will be some temperature and marine layer fluctuations, but after today, no extremes of temperature or monsoonal activity is currently in the picture for SoCal for at least the next ten days.

AVIATION. 130900Z . Coast . BKN-OVC009-013 with tops to 1,800 ft MSL through 16Z, +/- an hour. Occasional brief SCT conditions may occur at the terminals at times. Elevated coastal terrain at cloud level will be obscured with visibility reducing to 3 SM or less at times. VFR conditions will prevail for several hours late morning and into the afternoon. Low clouds will redevelop Monday evening, likely significantly earlier (between 02-04Z, or a little later at KSNA), with CIGS around 200 ft higher than this morning.

Mountains/Deserts . A few high clouds and unrestricted vis through Monday night. Southwest to west winds with sfc gusts 25-35 kt developing on the desert mountain slopes, below the passes, and into the deserts Monday afternoon and evening.

MARINE. The outer waters will get breezy in the afternoon/evening on Tuesday and Wednesday, with maximum gusts that may locally approach 20 knots. Otherwise, no hazardous marine conditions are expected through Friday.

SGX WATCHES/WARNINGS/ADVISORIES. CA . Excessive Heat Warning until 8 PM PDT Monday for Apple and Lucerne Valleys-Coachella Valley-San Diego County Deserts- San Gorgonio Pass Near Banning.

PZ . NONE.

PUBLIC . 10 AVIATION/MARINE . Rodriguez


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46224 - Oceanside Offshore, CA (045) 71 mi55 min 72°F3 ft

Wind History for La Jolla, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palm Springs Regional Airport, CA10 mi28 minSSW 410.00 miFair94°F46°F19%1007.6 hPa
Palm Springs, Jacqueline Cochran Regional Airport, CA12 mi29 minSE 510.00 miFair95°F57°F29%1006.5 hPa

Link to 5 minute data for KPSP

Wind History from PSP (wind in knots)
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SE6S4CalmS3CalmCalmCalmSW3SW4
1 day agoSE4CalmS44S5W4NW3--NW10E17
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2 days agoE3SE6SE6E5E4E6SE9E11E94E5SE45NW11CalmNW12CalmCalmCalmSW3CalmCalm6S5

Tide / Current Tables for San Clemente, California
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San Clemente
Click for Map
Mon -- 12:50 AM PDT     Moonrise
Mon -- 03:59 AM PDT     3.11 feet High Tide
Mon -- 05:50 AM PDT     Sunrise
Mon -- 09:57 AM PDT     1.62 feet Low Tide
Mon -- 01:46 PM PDT     Moonset
Mon -- 05:00 PM PDT     4.56 feet High Tide
Mon -- 08:01 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.22.52.833.132.82.421.71.61.82.12.73.444.44.64.443.42.82.21.8

Tide / Current Tables for La Jolla (Scripps Institution Wharf), California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_P
GEOS 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 (11,2,3,4)
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Ground Weather Radar Station San Diego, 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 numerous 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.