Sunday, April18, 2021
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Marine Weather and Tides
Huntington Beach, CA

Version 3.4
NOTICE
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 6:15AMSunset 7:26PM Sunday April 18, 2021 12:54 PM PDT (19:54 UTC) Moonrise 10:40AMMoonset 12:46AM Illumination 43% Phase: First Quarter Moon; Moon at 7 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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PZZ655 Inner Waters From Point Mugu To San Mateo Pt. Ca Including Santa Catalina And Anacapa Islands- 833 Am Pdt Sun Apr 18 2021
.small craft advisory in effect through this evening...
Today..From point mugu to santa Monica, ne winds 20 to 25 kt. Elsewhere, N winds 10 to 15 kt with gusts to 15 kt. Combined seas 3 to 4 ft dominant period 8 seconds.
Tonight..W winds 15 to 25 kt with gusts to 30 kt, becoming nw 15 to 20 kt after midnight. Combined seas 4 to 5 ft dominant period 7 seconds.
Mon..W winds 10 to 15 kt. Wind waves 1 to 3 ft. Mixed swell W 2 ft at 7 seconds and sw 2 ft at 15 seconds.
Mon night..W winds 15 to 20 kt, becoming sw 10 to 15 kt after midnight. Wind waves 1 to 3 ft. Mixed swell W 2 to 4 ft at 7 seconds and sw 2 ft at 21 seconds. Patchy fog after midnight.
Tue..S winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and sw 2 ft at 19 seconds. Patchy fog in the morning.
Tue night..W winds 10 to 15 kt. Wind waves 2 ft or less. W swell 3 to 5 ft at 9 seconds. Patchy fog after midnight.
Wed..NE winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 5 ft. Patchy fog.
Thu..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S 2 ft. Patchy fog.
PZZ600 833 Am Pdt Sun Apr 18 2021
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z, or 8 am pdt, a 1026 mb high pressure center was located 500 nm west of point conception and a 998 mb low pressure center was located 1000 nm west of portland oregon. Patchy fog, locally dense with visibility under one mile, will continue through midday off the central coast and across the outer waters. There will be little to no notable fog overnight tonight, then it will be widespread Tuesday through Thursday.


7 Day Forecast for Marine Location Near Huntington Beach, CA
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location: 33.65, -117.99     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 181543 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 843 AM PDT Sun Apr 18 2021

SYNOPSIS. Santa Ana conditions will mean gusty northeast winds over the mountains, foothills and Inland Empire today. The winds will weaken later today, but very dry and warm conditions will linger inland. Cooling will begin along the coast on Monday, and progress inland through midweek as onshore flow strengthens ahead of another trough dropping south through Nevada. A deepening marine layer will mean more clouds and fog over the coastal basin, with some drizzle possible by Wednesday night. Temperatures will be below average midweek, then rise back to average and above into next weekend.

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

Low clouds and fog were rapidly dissipating this morning near the coast as northeast winds increased As of 8 AM PDT. Strongest gusts were in the 35-45 MPH range over mountain and pass areas. The sfc pressure gradients were moderately offshore from the high deserts to KSAN and neutral to the east. Not very impressive for wind support. The 12Z Miramar sounding had a strong 8C inversion based near 1200 FT MSL. Northeast winds of around 15 KTS were located in the 2K-4K layer.

Some of that wind will mix down to the surface this morning, especially along the foothills, helping to dry and rapidly warm the atmosphere. Very low relative humidity in these areas, coupled with the locally strong winds will marginally increase the wildfire threat. Temperatures could top out 10-15F above average just inland from the immediate coast, while far inland areas and deserts are closer to average for the date. A Wind Advisory remains in effect over northern portions of the forecast area today, but will be monitored for possible cancellation if stronger winds don't materialize in the next couple of hours. No forecast changes at this time.

From previous discussion .

High temperatures today could be 10 to 20 degrees higher than yesterday, with some inland valley locations reaching the upper 80s to low 90s. By this afternoon, humidities everywhere but at the coast will be 15 percent or lower with many inland areas experiencing single digit humidities. This will result in elevated fire weather conditions for several hours this afternoon in the windy areas. The strongest winds will be in The Inland Empire, San Bernardino County Mountains, Santa Ana Mountains and Foothills and Orange County Inland Areas. Wind gusts of 35 to 45 mph are expected, with gusts to 55 mph possible in the favored locations.

Monday will again be very warm and dry but the Santa Ana winds will weaken considerably as offshore sfc pressure gradients weaken and the winds aloft turn more northwesterly. Humidities inland will remain near or below 15 percent with daytime high temps close to today. Temperatures near the coast will begin to moderate as a sea breeze develops Monday afternoon.

Onshore flow develops again Tuesday ahead of a low pressure system moving into the Great Basin from the Pacific Northwest. The associated trough will extend to the southwest, moving through SoCal by Thursday morning. The strengthening onshore flow will bring gusty westerly winds to the mtns and deserts for Tue into Wed. This system will also bring much lower temperatures and a deepening marine layer with increasing clouds by Wed morning. The deep marine layer could bring patchy drizzle to areas west of the mtns on Wed morning. As the trough moves through the region, it will bring a chance for measurable rain from the coast to the foothills Wed night through Thursday morning. A majority of the European Model and the GFS ensemble members now indicate some measurable precip during this period so confidence is growing, however preliminary estimates are for less than one tenth of an inch with most locations getting less than 0.05 inch.

Dry and warmer again for Friday through next weekend as the low pressure system moves to the southeast and a ridge of high pressure moves in from the west.

AVIATION. 181530Z . Clear skies will prevail through Monday with unrestricted vis.

Areas of N-NE winds 15-25 knots with local gusts 30-40 knots will occur from the mountain crests through the foothills and into the valleys through 22Z with gradually diminishing winds through 02Z Mon. This will including VCNTY KONT, KCNO, KRAL, KRIV, KAJO. Areas of MOD up/downdrafts and LLWS will also occur.

MARINE. Northwesterly winds will locally gust around or slightly over 20 knots in the outer coastal waters this evening and then again Monday evening. Otherwise, no hazardous marine weather is expected through Thursday.

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

SGX WATCHES/WARNINGS/ADVISORIES. CA . Wind Advisory until 4 PM PDT this afternoon for Orange County Inland Areas-San Bernardino County Mountains-San Bernardino and Riverside County Valleys-The Inland Empire-Santa Ana Mountains and Foothills.

PZ . NONE.



PUBLIC . 10/PG AVIATION/MARINE . Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46253 11 mi58 min 64°F3 ft
46256 12 mi58 min 63°F3 ft
AGXC1 14 mi72 min SSE 1.9 G 2.9 76°F 1015.1 hPa
BAXC1 15 mi66 min E 8.9 G 11
PFDC1 15 mi60 min ESE 4.1 G 6
OHBC1 - 9410660 - Los Angeles, CA 16 mi54 min 62°F1017.3 hPa (+0.0)
46222 - San Pedro, CA (092) 17 mi63 min 63°F3 ft
PXAC1 17 mi60 min SSE 5.1 G 8.9
46221 - Santa Monica Bay, CA (028) 37 mi58 min 62°F4 ft
ICAC1 - 9410840 - Santa Monica Pier 37 mi54 min NNE 14 G 22 82°F 60°F1016.8 hPa (-1.0)
46268 40 mi54 min 78°F 60°F2 ft
46224 - Oceanside Offshore, CA (045) 43 mi58 min 63°F3 ft

Wind History for Los Angeles Pier J, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
John Wayne-Orange County Airport, CA7 mi61 minNNE 17 G 2310.00 miA Few Clouds86°F17°F8%1015.8 hPa
Los Alamitos Army Airfield, CA10 mi56 minN 010.00 miFair83°F16°F8%1016.5 hPa
Fullerton, Fullerton Municipal Airport, CA15 mi61 minN 010.00 miFair85°F49°F29%1015.7 hPa
Long Beach, Long Beach Airport, CA15 mi61 minNE 510.00 miFair83°F18°F9%1016.3 hPa
Torrance, Zamperini Field Airport, CA21 mi2.1 hrsVar 310.00 miClear81°F25°F13%1016.9 hPa

Link to 5 minute data for KSNA

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2 days agoSW8SW9W7SW10W7W7W5SW4SW4S3CalmCalmCalmSE3CalmCalmE3--NE4NE3Calm44S7

Tide / Current Tables for Santa Ana River entrance (inside), California
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Santa Ana River entrance (inside)
Click for Map
Sun -- 12:45 AM PDT     Moonset
Sun -- 12:55 AM PDT     2.40 feet High Tide
Sun -- 06:17 AM PDT     Sunrise
Sun -- 10:39 AM PDT     Moonrise
Sun -- 10:57 AM PDT     0.13 feet Low Tide
Sun -- 07:25 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.42.32.21.91.61.20.90.60.30.20.10.20.40.70.91.21.41.51.51.61.71.81.9

Tide / Current Tables for Newport Bay Entrance, Corona del Mar, California (2)
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Newport Bay Entrance
Click for Map
Sun -- 12:29 AM PDT     4.31 feet High Tide
Sun -- 12:45 AM PDT     Moonset
Sun -- 06:17 AM PDT     Sunrise
Sun -- 09:09 AM PDT     0.63 feet Low Tide
Sun -- 10:39 AM PDT     Moonrise
Sun -- 07:25 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.34.34.13.632.31.71.10.80.60.711.31.72.12.42.62.82.933.13.23.43.7

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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