Monday, June21, 2021
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Marine Weather and Tides
National City, 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 5:39AMSunset 8:00PM Monday June 21, 2021 12:56 AM PDT (07:56 UTC) Moonrise 4:51PMMoonset 3:00AM Illumination 86% 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- 137 Pm Pdt Sun Jun 20 2021
Tonight..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 5 seconds and sw 2 to 3 ft at 17 seconds.
Mon..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 5 seconds and S 3 ft at 18 seconds.
Mon night..Wind nw 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 5 seconds and S 3 ft at 17 seconds.
Tue..Wind nw 10 to 15 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 3 to 4 ft at 5 seconds and S 3 ft at 17 seconds.
Tue night..Wind nw 10 to 15 kt. Wind waves 3 ft in the evening...becoming 2 ft or less. Mixed swell nw 3 to 4 ft at 5 seconds and S 3 ft at 16 seconds.
Wed..Wind nw 10 to 15 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell nw 3 to 4 ft and S 3 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 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 2 to 3 ft.
Thu 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.
Fri..Wind W 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 3 ft and S 2 ft.
Fri 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 2 ft.
PZZ700 137 Pm Pdt Sun Jun 20 2021
Synopsis for the far southern california coast.. At 2 pm, a 1028 mb high was about 700 nautical miles west of san francisco, and a 1002 mb surface low was near needles. Weak to moderate onshore flow will continue through Monday. Onshore flow will increase Tuesday through Thursday, with peak gusts to 20 knots possible each afternoon and evening over the outer coastal waters.


7 Day Forecast for Marine Location Near National City, CA
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location: 32.67, -117.12     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 210511 AAA AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 1000 PM PDT Sun Jun 20 2021

SYNOPSIS. Hot and dry conditions will continue from the foothills, across the mountains and into the deserts this afternoon, while the marine layer and onshore flow moderates temperatures farther to the west. Low pressure approaching the Coast will amplify the onshore flow through Monday and gradually push cooling farther inland through the first half of the week. Areas of low clouds and patchy fog will continue along the coast at times. On Tuesday into Wednesday, widespread high clouds from the remnants of Dolores will arrive. As those clouds part, a re-building ridge aloft will bring hotter weather again Friday into next weekend.

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

Evening Update:

No significant updates were needed this evening. Today was another hot one for the inland areas, with peak temperatures almost 120 degrees in the lower deserts. Winds have also been gusty in the deserts this evening with peak gusts as high as 45 mph in Palm Springs. These winds will diminish after midnight, however look for another diurnal resurgence of winds in the passes and deserts for Monday afternoon through Monday evening.

Remainder of previous discussion, issued at 100 pm pdt:

Heat stress and wildfire potential are the main concerns for the mountains and deserts. Look for wind to increase this afternoon and evening, and continue through the night. Overnight minimums will be elevated in windier areas. Along the Coast, the marine layer will keep it much cooler with periods of low clouds and patchy morning fog much of the week.

High pressure over the Southwest today will drift eastward through midweek as a weak Pacific trough edges closer to the California Coast. The repositioning of these weather features will bring increasing onshore winds over SoCal, driving cooling inland through about midweek. The ridge is forecast to drift back westward later in the week along 30N, as the trough slowly weakens, maintaining westerly flow aloft, but with rising heights/thickness and consequently, warming over SoCal. The picture gets muddied a bit by next weekend with differing model solutions, but warming is favored through the weekend when temperatures are currently forecast to be back above normal most areas and perhaps excessively so once again.

Until then, there will be some moisture from the remnants of Tropical Cyclone Dolores to monitor for Tue/Wed. For now, it looks substantial, aloft anyway, and that should bring plenty of high clouds on Tuesday, which will help to moderate peak surface temperatures even beyond the increased onshore influences. Initially this looks to be occurring in a very stable atmosphere. So other than a few sprinkles over the mountains, no precipitation is expected. For Wednesday though, a weak easterly wave is drawn northward and could clip us with enough instability to draw on that moisture for some showers. For now, the trajectory of that feature looks to be too far east to affect us, so there are no forecast POPS.

The Excessive Heat Warnings all expire this evening. It will remain quite warm on Monday far inland. wind Advisories may be needed tonight into Monday, but for now the threat is marginal enough to not issue. Cooling will be more noticeable far inland on Tuesday, with continued cooling through midweek. Daytime temperatures may actually be a few degrees below average this period.

AVIATION. 210400Z . Coasts/Valleys . Stratus with bases 900-1400 ft MSL will fill in along the coast through 06Z, then spread 10-15 mi inland overnight. Bases may locally lower to around 700 ft MSL with 4-6 SM vis in BR/HZ, mainly on higher coastal terrain. Clouds clearing back to the coast 15-18Z, though areas near the immediate coast may remain BKN-OVC through much of the afternoon, including near KSAN and KCRQ. Clouds will slowly spread back inland after 22/02Z with similar bases.

Mountains/Deserts . West winds with surface gusts 25 to 35 kt will continue across the desert mountain slopes and locally into the deserts through about 08Z, weakening overnight. Winds will strengthen again Monday afternoon with similar strength gusts, including gusts near 30-35 kt at KPSP. MOD-STG up/downdrafts and areas of LLWS possible over and east of the mountains.

MARINE. Breezy northwest winds will occur each afternoon and evening Monday through Wednesday across the outer waters with gusts approaching 20 kt, with the strongest winds Tuesday and Wednesday. Otherwise, no hazardous marine weather is expected through Friday.

BEACHES. A south swell from 200 degrees will build Monday, peaking at 3 ft/18 sec. The swell will persist into Wednesday before slowly fading. This will generate surf of 3-6 ft along the south facing beaches of far northern San Diego County into Orange County through Wednesday, as well as strong rip and longshore currents.

FIRE WEATHER.

. ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS OVER OUR MOUNTAINS AND DESERT AREAS THIS AFTERNOON AND MONDAY .

Extreme heat, low afternoon RH of 5-15%, and gusty westerly winds will maintain elevated fire weather conditions along the desert slopes, through the passes and into some desert areas through Monday. Strongest southwest to west winds of 25 to 35 mph with gusts 40-50 mph and locally higher are likely in these areas at times, especially near the passes. Near critical fire weather conditions will develop in these areas for several hours today and again Monday afternoon.

The extreme heat today, coupled with high mixing heights and very dry fuels in the mountains, will increase the potential for plume- driven fire growth as well.

Some cooling will begin on Monday. Better cooling and slightly higher humidity will work a little farther inland Tuesday and Wednesday when clouds and high elevation moisture will arrive. Westerly winds will remain gusty in the usual onshore favored areas.

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 . 10/JMB AVIATION/MARINE/BEACHES . SS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 4 mi56 min 70°F1013.6 hPa (+0.5)
46235 7 mi60 min 68°F2 ft
TIXC1 - Tijuana River Reserve, CA 7 mi71 min NW 1 63°F 1014 hPa60°F
LJAC1 - 9410230 - La Jolla, CA 15 mi56 min NNW 1.9 G 2.9 63°F 65°F1013.5 hPa (+0.4)
LJPC1 - La Jolla, CA (073) 15 mi36 min NW 1.9 G 5.1 2 ft
46254 16 mi60 min 68°F2 ft
46232 - Point Loma South, CA (191) 19 mi60 min 65°F4 ft
46258 21 mi60 min 66°F4 ft
46266 22 mi56 min 63°F 67°F3 ft
46225 - Torrey Pines Outer, CA (100) 23 mi60 min 68°F3 ft
46224 - Oceanside Offshore, CA (045) 40 mi60 min 66°F3 ft

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, North Island, Naval Air Station, CA5 mi64 minWNW 410.00 miMostly Cloudy63°F57°F81%1013.5 hPa
San Diego International Airport, CA5 mi65 minWNW 310.00 miPartly Cloudy65°F57°F76%1014.1 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA6 mi60 minno data10.00 miOvercast0°F0°F%1013.9 hPa
San Diego, Brown Field Municipal Airport, CA10 mi63 minN 09.00 miOvercast62°F55°F78%1013.3 hPa
San Diego, Montgomery Field, CA11 mi63 minW 310.00 miFair63°F57°F81%1013.4 hPa
Gillespie Field Airport, CA14 mi61 minN 010.00 miFair63°F57°F83%1013.5 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA15 mi61 minW 310.00 miFair59°F55°F87%1013.1 hPa

Link to 5 minute data for KNZY

Wind History from NZY (wind in knots)
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Last 24hrNW5W4W4CalmNW65NW7N4W4SW6SW5W8W6SW7W8W5SW8W8W6W6W4W4W3W4
1 day agoCalmS3CalmW3W4CalmW4SW4W43SW65SW8W9W9NW9W9NW10NW8NW8NW5NW5NW6NW6
2 days agoSW4SW4S6S4CalmCalmSW3S4S3SW4S7SW9SW7SW7SW7S8SW6SW4SW6S5SW5CalmSW4SW3

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Mon -- 01:51 AM PDT     -0.18 feet Low Tide
Mon -- 02:59 AM PDT     Moonset
Mon -- 05:41 AM PDT     Sunrise
Mon -- 07:52 AM PDT     4.25 feet High Tide
Mon -- 01:06 PM PDT     1.40 feet Low Tide
Mon -- 04:51 PM PDT     Moonrise
Mon -- 07:29 PM PDT     7.08 feet High Tide
Mon -- 07:59 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90-0.20.21.12.33.344.23.93.22.41.71.41.62.43.75.16.3776.34.93.2

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
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Mon -- 02:11 AM PDT     0.00 knots Slack
Mon -- 02:59 AM PDT     Moonset
Mon -- 05:07 AM PDT     1.36 knots Max Flood
Mon -- 05:41 AM PDT     Sunrise
Mon -- 08:01 AM PDT     -0.00 knots Slack
Mon -- 10:42 AM PDT     -1.28 knots Max Ebb
Mon -- 01:23 PM PDT     0.00 knots Slack
Mon -- 04:49 PM PDT     1.76 knots Max Flood
Mon -- 04:51 PM PDT     Moonrise
Mon -- 07:49 PM PDT     -0.00 knots Slack
Mon -- 07:59 PM PDT     Sunset
Mon -- 11:19 PM PDT     -2.52 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.7-1-0.20.61.11.41.20.70-0.7-1.2-1.3-0.9-0.30.51.21.61.71.50.8-0.2-1.2-2.1-2.5

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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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