Monday, September27, 2021
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Marine Weather and Tides
Del Mar, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:39AMSunset 6:40PM Monday September 27, 2021 1:10 AM PDT (08:10 UTC) Moonrise 10:52PMMoonset 12:52PM Illumination 66% Phase: Waning Gibbous; Moon at 21 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- 138 Pm Pdt Sun Sep 26 2021
Tonight..Wind nw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 14 seconds and S 2 to 3 ft at 17 seconds.
Mon..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 14 seconds and S 2 to 3 ft at 17 seconds.
Mon 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 at 13 seconds and S 2 to 3 ft at 15 seconds.
Tue..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 12 seconds and S 2 to 3 ft at 15 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 4 ft at 8 seconds and S 2 to 3 ft at 14 seconds.
Wed..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and S 2 ft.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 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 to 3 ft and S 2 ft.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 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 2 ft.
Fri 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 2 ft.
PZZ700 138 Pm Pdt Sun Sep 26 2021
Synopsis for the far southern california coast.. At 1 pm, a 1023 mb high was 700 nm west of san diego, and a 1010 mb low was near needles. Mostly weak onshore flow will prevail this week, except for some gusts around 20 knots possible in the outer coastal waters Tuesday late afternoon and evening.


7 Day Forecast for Marine Location Near Del Mar, CA
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location: 32.9, -117.25     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 270416 AAA AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 915 PM PDT Sun Sep 26 2021

SYNOPSIS. Residual moisture circulating around a departing upper-level storm system will threaten a few more showers or thunderstorms today, mainly near the mountains. A large trough will then develop over the West through the first half of the week, maintaining onshore flow, a deep marine layer, and cooler than average days. Weak Santa Ana conditions are favored after midweek, for much warmer and dry weather.

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

-Forecast Highlights-

* Cool pattern on strengthening west winds through Wednesday * Weak Santa Ana winds Thursday with significant warming late week

Evening Forecast Update:

A deep marine layer is in place this evening with stratus clouds stretching now almost to Imperial County. The 00Z sounding indicated the marine layer height was about 3000 feet but is likely closer to 4000 feet now given the inland extent that we are seeing. The only significant updates this evening were to add patchy drizzle to the forecast through Monday morning (we have observed drizzle here in Rancho Bernardo most of the evening) and also to increase sky cover grids a bit as well. No other changes to the forecast and the remainder of the afternoon discussion remains valid. Have a good evening!

Remainder of the afternoon forecaster discussion (1252 PM PDT):

Changeable weather will be seen this week. The first half of the week will be cool with temperatures averaging some 5-10 degrees below normal as an upper level trough dominates the region. One upper low is departing to the east. Residual moisture around this feature could allow isolated showers/t-storms to develop over the mountains this afternoon. Meanwhile the marine layer has deepened and hanging tough along the coast and even into the valleys this afternoon. Some additional slow clearing will occur from the east, but the beaches look to remain cloudy.

Another longwave trough will dive southeastward through midweek. This will lead to increasing west winds with the gustiest winds occurring Tuesday afternoon/evening along the desert mountain slopes and through the passes with gusts of mostly 30-40 mph. The trough will exit east with surface high pressure building into the Great Basin. This will set up what looks to be a weak Santa Ana wind by Thursday, followed by lightening winds Friday-Saturday but with potentially hotter temperatures as upper ridging builds in from the west.

Followed NBM temps in the extended, but if this pattern sets up as it seems, we may need to increase temperatures Friday-Saturday. Dry weather is expected to prevail for the week ahead.

AVIATION. 270300Z . Coast/Valleys . Low clouds will again spread inland throughout the coastal areas and valleys tonight, with bases 1200- 2000 ft MSL and tops to 3000 ft MSL. Expect local vis below 1 mile near higher terrain as areas of higher terrain will be obscured. Clearing will be slow Mon, mostly 17Z-20Z in the valleys with little/no clearing again near the coast. Cigs at coastal TAF sites likely to persist into Monday afternoon.

Mountains/Deserts . SCT-BKN clouds at/above 10,000 ft MSL will continue at times through tonight.

MARINE. Northwest winds will increase Tuesday over the outer coastal waters, with gusts near 20 knots possible. Otherwise, no hazardous marine weather is expected through Friday.

BEACHES. A long-period south-southwest swell and a modest west-northwest swell will bring elevated surf and a high rip current risk to the beaches Monday into Tuesday. Sets to 6 feet are possible at Orange County beaches, and sets to 5 feet are possible at San Diego beaches. The south swell will gradually diminish Tuesday through Wednesday, though the west-northwest swell will continue the elevated surf and the high rip current risk in San Diego County on Wednesday.

FIRE WEATHER. A weak Santa Ana wind is forecast to occur late Wednesday night through Thursday. Right now northeast to east wind gusts to about 30 mph is expected through the mountain passes and along the coastal mountain slopes. Relative humidity will be lowering into the 15-20% range as well. This is the period of most elevated fire weather conditions in the coming days.

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 . Gregoria/JMB AVIATION/MARINE . PG


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46254 2 mi44 min 65°F1 ft
LJAC1 - 9410230 - La Jolla, CA 2 mi52 min NW 5.1 G 6 66°F 65°F1016.3 hPa
LJPC1 - La Jolla, CA (073) 2 mi50 min NW 5.1 G 7 1 ft
46266 4 mi70 min 66°F 65°F2 ft
46225 - Torrey Pines Outer, CA (100) 8 mi44 min 70°F3 ft
SDBC1 - 9410170 - San Diego, CA 13 mi58 min 68°F1016.5 hPa
46258 17 mi44 min 69°F3 ft
46224 - Oceanside Offshore, CA (045) 23 mi44 min 67°F3 ft
46235 23 mi44 min 65°F 65°F3 ft
TIXC1 - Tijuana River Reserve, CA 23 mi85 min Calm 65°F 1017 hPa61°F
46232 - Point Loma South, CA (191) 28 mi44 min 70°F4 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, Miramar MCAS/Mitscher Field Airport, CA5 mi75 minWNW 610.00 miOvercast63°F59°F87%1016.5 hPa
San Diego, Montgomery Field, CA8 mi17 minNNW 610.00 miOvercast65°F59°F81%1016.6 hPa
San Diego International Airport, CA12 mi19 minNW 410.00 miOvercast68°F59°F73%1017.3 hPa
San Diego, North Island, Naval Air Station, CA14 mi18 minNW 710.00 miOvercast67°F58°F73%1016.6 hPa
Gillespie Field Airport, CA16 mi15 minNW 43.00 miFog/Mist63°F61°F94%1016.9 hPa
Carlsbad, McClellan-Palomar Airport, CA17 mi17 minN 010.00 miOvercast63°F60°F90%1016.5 hPa
Ramona, Ramona Airport, CA20 mi17 minW 43.00 miFog/Mist59°F59°F100%1016.2 hPa
Oceanside, Oceanside Municipal Airport, CA23 mi18 minN 09.00 miOvercast66°F60°F81%1016.6 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA23 mi14 minNNW 510.00 miOvercast0°F0°F%1017.3 hPa

Link to 5 minute data for KNKX

Wind History from NKX (wind in knots)
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Last 24hrW3W3NW3NW4CalmW4W4NW5NW53--NW6W9NW7W6NW6W8NW7NW6W7NW5NW5NW4NW6
1 day agoCalmCalmNW4N3NW4N5N3CalmCalm45W5NW96W9W7NW6W6NW5W5NW7CalmNW5W4
2 days agoSW3CalmN5N4CalmE3CalmNE3N3NW3Calm5NW8NW10W5NW10CalmW7W9CalmE4NE4CalmCalm

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Mon -- 03:26 AM PDT     2.95 feet High Tide
Mon -- 05:13 AM PDT     2.92 feet Low Tide
Mon -- 06:40 AM PDT     Sunrise
Mon -- 12:52 PM PDT     Moonset
Mon -- 12:55 PM PDT     4.50 feet High Tide
Mon -- 06:38 PM PDT     Sunset
Mon -- 09:44 PM PDT     1.36 feet Low Tide
Mon -- 10:52 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.72.92.92.92.92.933.23.53.94.24.44.54.44.13.63.12.521.61.41.41.5

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Mon -- 02:53 AM PDT     -0.00 knots Slack
Mon -- 05:01 AM PDT     -0.25 knots Max Ebb
Mon -- 06:40 AM PDT     Sunrise
Mon -- 06:57 AM PDT     0.00 knots Slack
Mon -- 09:58 AM PDT     0.49 knots Max Flood
Mon -- 12:51 PM PDT     Moonset
Mon -- 01:24 PM PDT     -0.00 knots Slack
Mon -- 05:54 PM PDT     -0.99 knots Max Ebb
Mon -- 06:38 PM PDT     Sunset
Mon -- 10:36 PM PDT     0.00 knots Slack
Mon -- 10:52 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.30.2-0-0.2-0.3-0.200.20.40.50.40.30.1-0.1-0.4-0.7-0.9-1-0.9-0.7-0.4-0.10.1

Weather Map
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GEOS Local Image of Southwest    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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