Monday, August3, 2020
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Marine Weather and Tides
Poway, 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 6:02AMSunset 7:46PM Monday August 3, 2020 11:13 AM PDT (18:13 UTC) Moonrise 8:14PMMoonset 5:54AM Illumination 100% Phase: Full Moon; Moon at 14 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- 131 Am Pdt Mon Aug 3 2020
Today..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and S 2 ft at 12 seconds. Patchy fog with vsby 5 nm or less in the morning.
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 ft at 12 seconds.
Tue..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 9 seconds and S 2 ft at 11 seconds.
Tue night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 5 ft at 8 seconds and S 1 to 2 ft at 11 seconds.
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 to 5 ft at 9 seconds and S 1 to 2 ft at 11 seconds.
Wed night..Wind W 10 kt. Gusts to 15 kt in the evening. Wind waves 3 ft in the evening...becoming 2 ft or less. Mixed swell W 3 to 4 ft and S 1 to 2 ft.
Thu..Wind W 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 3 to 4 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 to 3 ft and S 1 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 to 3 ft and sw 1 to 2 ft.
Fri night..Wind nw 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 1 ft.
PZZ700 131 Am Pdt Mon Aug 3 2020
Synopsis for the far southern california coast.. At 2 am, a 1004 mb low was over eastern san bernardino county and a 1015 mb high was over the california bight. Weak to occasionally moderate onshore flow will prevail with a coastal eddy at times. Areas of patchy fog are possible over the coastal waters this morning. Visibility will be reduced to 1-3 nm in areas of fog resulting in hazardous navigation for mariners.


7 Day Forecast for Marine Location Near Poway, CA
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location: 33.03, -117     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 031614 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 914 AM PDT Mon Aug 3 2020

SYNOPSIS. A trough of low pressure deepening over the California coast during the middle of the week will spread cooling inland through Thursday. The marine layer will deepen, with night and morning coastal low clouds and fog spreading farther into the valleys during the middle of the week. For Friday through next weekend, the trough of low pressure will weaken with high temperatures warming to around seasonal averages for next weekend.

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

The marine layer was marginally deeper this morning than it has been the last 2 mornings but didn't spread any farther inland. As a result, we saw significantly fewer locations with dense fog. Sfc pressure gradients are trending towards weaker onshore and portions of the coastal areas have already cleared to near the beaches.

Through Thursday . High pressure will weaken over southern California and shift to the southeast as a trough of low pressure deepens along the California coast for the middle of the week. Desert areas may be a degree or two hotter today than yesterday as 850 mb temperatures increase slightly and we lose the low-level moisture surge from the Gulf of California. This will be followed by general cooling for Tuesday through Thursday. West of the mountains, a cooling trend will continue into Thursday. Thursday high temperatures will be generally around 5 degrees below seasonal averages, except 5 to 10 degrees below average in some valley and mountain areas. The lower deserts will be around the seasonal average. As the trough asserts its influence over the region, we'll be effectively cut off from any access to sub-tropical moisture.

The marine layer has deepened to around 1500 feet with widespread low clouds over the coastal waters extending into coastal areas and some of the western valleys in San Diego County. The marine layer will continue to deepen for the the middle of the week, reaching 2000 to 2500 feet with night and morning coastal low clouds and fog spreading farther into the inland valleys.

For late in the week into next weekend, the trough of low pressure will weaken and the high to the southeast will begin to expand westward into extreme southeastern California. There will be a warming trend with high temperatures returning to around average during the weekend.

AVIATION. 031530Z . Coast/Valleys . Stratus is eroding quickly this morning and expect VFR conditions at the coastal terminals from 17Z onward. Low clouds with bases 500-1000 ft MSL and tops to 1500 ft MSL will reach the coastal terminals again 02-04Z and spread around 15 mi inland overnight. Areas of vis to 3-5 SM, locally 1 SM or less on higher coastal terrain from this evening through 15Z Tuesday.

Elsewhere, mostly clear with unrestricted vis through Tue AM. Areas of smoke near KBUO due to an ongoing wildfire.

Mountains/Deserts . Smoke from an ongoing wildfire will make it into portions of the San Bernardino mountains and the Coachella Valley. West winds with sfc gusts 20-30 kt along the mountain crests/desert slopes and below the passes from 22Z Mon-09Z Tue. Otherwise clear with unrestricted vis through Tuesday morning.

MARINE. No hazardous marine weather is expected through Friday.

FIRE WEATHER. Lowest daytime humidity in the deserts and the lower desert slopes of the mountains will fall to 5 to 10 percent today, then recover slightly to around 10 percent for Wednesday through Friday. Sea breeze winds of 15 to 30 mph will continue each afternoon and evening for the mountains into the deserts. This combination of wind and low humidity will bring a few hours of near critical fire weather conditions during the late afternoon each day from the lower desert slopes of the mountains into the deserts. The diurnal onshore winds will be strongest Wednesday and Thursday afternoons and evenings.

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/FIRE WEATHER . PG AVIATION/MARINE . Moreland


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46266 16 mi163 min 65°F 64°F2 ft
46254 18 mi47 min 66°F1 ft
LJAC1 - 9410230 - La Jolla, CA 18 mi55 min WSW 5.1 G 5.1
LJPC1 - La Jolla, CA (073) 18 mi53 min WSW 4.1 G 6 1 ft
46225 - Torrey Pines Outer, CA (100) 22 mi47 min 68°F2 ft
SDBC1 - 9410170 - San Diego, CA 24 mi61 min 68°F1014.8 hPa
46224 - Oceanside Offshore, CA (045) 27 mi47 min 70°F2 ft
TIXC1 - Tijuana River Reserve, CA 32 mi88 min WSW 5.1 66°F 1015 hPa64°F
46258 33 mi47 min 70°F2 ft
46232 - Point Loma South, CA (191) 42 mi47 min 71°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
Ramona, Ramona Airport, CA5 mi20 minWNW 710.00 miFair90°F59°F35%1013.7 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA13 mi78 minVar 610.00 miFair80°F64°F58%1013.9 hPa
Gillespie Field Airport, CA14 mi26 minVar 610.00 miClear84°F60°F45%1014.6 hPa
San Diego, Montgomery Field, CA15 mi20 minSW 88.00 miFair76°F64°F67%1014.6 hPa
Carlsbad, McClellan-Palomar Airport, CA17 mi20 minW 710.00 miFair70°F62°F76%1014.3 hPa
Oceanside, Oceanside Municipal Airport, CA23 mi21 minW 76.00 miMostly Cloudy with Haze72°F66°F82%1014.5 hPa
San Diego International Airport, CA23 mi22 minSSW 77.00 miMostly Cloudy69°F63°F81%1015.5 hPa

Link to 5 minute data for KRNM

Wind History from RNM (wind in knots)
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NW5W5W5CalmW5CalmCalmCalmCalmE3CalmCalmCalmCalm33NW7
1 day agoNW9NW10
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NW14NW12NW6NW5W3CalmCalmCalmCalmCalmCalmCalmSE4CalmCalm33NW9NW10

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Mon -- 04:11 AM PDT     -0.81 feet Low Tide
Mon -- 05:54 AM PDT     Moonset
Mon -- 06:04 AM PDT     Sunrise
Mon -- 08:59 AM PDT     Full Moon
Mon -- 10:38 AM PDT     4.18 feet High Tide
Mon -- 03:29 PM PDT     2.07 feet Low Tide
Mon -- 07:45 PM PDT     Sunset
Mon -- 08:14 PM PDT     Moonrise
Mon -- 09:39 PM PDT     6.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.82.20.7-0.3-0.8-0.60.21.32.53.54.14.23.83.22.52.12.12.63.54.65.56.26.35.7

Tide / Current Tables for La Jolla, Scripps Pier, California (3)
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La Jolla
Click for Map
Mon -- 04:18 AM PDT     -1.00 feet Low Tide
Mon -- 05:54 AM PDT     Moonset
Mon -- 06:04 AM PDT     Sunrise
Mon -- 08:59 AM PDT     Full Moon
Mon -- 10:48 AM PDT     4.33 feet High Tide
Mon -- 03:43 PM PDT     1.86 feet Low Tide
Mon -- 07:45 PM PDT     Sunset
Mon -- 08:14 PM PDT     Moonrise
Mon -- 09:54 PM PDT     6.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.12.50.9-0.4-1-0.8-0.11.12.43.54.24.343.32.521.92.33.14.25.36.16.46

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 (14,3,4,5)
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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 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.