Saturday, April10, 2021
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Marine Weather and Tides
Bellport, NY

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 6:18AMSunset 7:27PM Saturday April 10, 2021 7:22 AM EDT (11:22 UTC) Moonrise 6:04AMMoonset 6:07PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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ANZ345 South Shore Bays From Jones Inlet Through Shinnecock Bay- 646 Am Edt Sat Apr 10 2021
Today..SE winds around 5 kt. Waves 1 ft or less. Patchy fog this morning. Slight chance of showers until late afternoon. Vsby 1 to 3 nm this morning.
Tonight..SE winds around 5 kt. Waves 1 ft or less. Chance of showers after midnight. Patchy fog after midnight with vsby 1 to 3 nm.
Sun..E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 ft or less, then 1 to 2 ft in the afternoon. Showers.
Sun night..NE winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less. Showers.
Mon..NE winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less, then 1 to 2 ft in the afternoon. Chance of showers.
Mon night..NE winds 5 to 10 kt. Waves 1 to 2 ft. Chance of showers in the evening.
Tue..SW winds 5 to 10 kt. Waves 1 ft or less.
Tue night..SE winds 5 to 10 kt. Waves 1 ft or less.
Wed..E winds 5 to 10 kt. Waves 1 ft or less.
Wed night..E winds around 5 kt. Waves 1 ft or less.
ANZ300 646 Am Edt Sat Apr 10 2021
Synopsis for the long island waters and new york harbor.. High pressure gradually shifts east farther out into the atlantic today as a weak warm front approaches the waters from the southwest. Another frontal system impacts the waters on Sunday, followed by unsettled weather through the middle of next week as broad low pressure lingers over the northeast.


7 Day Forecast for Marine Location Near Bellport, NY
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location: 40.75, -72.93     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 100818 AFDOKX

Area Forecast Discussion National Weather Service New York NY 418 AM EDT Sat Apr 10 2021

SYNOPSIS. A weak warm front approaches today into Sunday morning. A backdoor cold front will pass later on Sunday, then remain nearly stationary southwest of the area through the middle of next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Light showers are beginning to develop and move through the forecast area as an upper level ridge breaks down and warm advection well ahead of a slowly approaching warm front sets up early this morning. An area of showers and thunderstorms over southeast Pennsylvania and southwestern New Jersey will move east, weakening as it does so as it moves into a more stable environment. Earlier it looked like these showers could make its way into the forecast area, but now it looks like it may move south of the region. Will have to reassess and adjust chances for precipitation accordingly with next update if this trend continues.

Despite the breakdown of the ridge to the east, another ridge to the west will move into the area, ahead of the approaching warm front today. Subsidence from this ridge will limit the potential for showers and mainly dry conditions are expected from mid morning onward. Clouds will also diminish in response to the ridging, helping to provide warmer conditions than Friday for most places. Highs will range from the lower 60s to around 70. Cooler conditions are expected along the immediate coast.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SUNDAY/. The upper level ridge will cross the area tonight, weaken and push east into Sunday. The first half of tonight should remain dry, but showers will move in from southwest to northeast as the warm front continues to slowly approach and the upper ridge slides east. This warm front is associated with a weakening stacked low over the mid-West. This low is forecast to weaken as it meanders over the mid-West.

Sunday will see chances for showers continue to increase from southwest to northeast as the warm front continues to move toward the area, then remain in the vicinity. There is a good deal uncertainty with model guidance in regards to amount of rainfall for Sunday, with the ECMWF an outlier with its higher rainfall amounts. However, with the frontal boundary in the vicinity, showers should continue for much of the day Sunday. A passing thunderstorm is also possible as there is some elevated instability. This may bring some brief, locally heavier rainfall (and could be what the ECMWF is hinting at).

Clouds and rain will mean slightly cooler temperatures for Sunday, with highs in upper 50s to middle 60s. Temperatures may drop slightly late in the day as a backdoor cold front may move through.

LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/. The front then lingers near or southwest of the cwa thru Thu per the 12Z progs. This will keep some chances for shwrs in the fcst thru the week, along with a cool nely flow. The NBM was generally used for temps, although the MEX was blended in at times to keep temps aob the lwr 60s due to the pattern in place. Clearing periods will need to be timed with peak heating to overachieve on temps.

AVIATION /08Z SATURDAY THROUGH WEDNESDAY/. High pressure slowly drifts farther east out into the Atlantic today with a weak warm front approaching from the southwest.

MVFR and IFR ceilings are fairly widespread this morning though there are some spots where conditions can briefly become VFR. LIFR conditions remain possible with the development of any locally dense fog or lowering stratus, though the likelihood of LIFR conditions diminishes after 13Z. General improvement to MVFR is expected Saturday morning and afternoon, where VFR may once again be possible.

Visibilities for the most part have been VFR though some patches of fog have resulted in 1 to 3 SM visibility overnight. The chance of reduction in visibilities to this extent through the morning is low but remains possible, especially in any showers. Scattered showers have developed to the southwest of the area and will approach the terminals over the next several hours.

Winds will be generally south to southeast near 5 to 10 kts through the TAF period with some terminals having a variable direction through this morning.

MARINE. Winds and seas remain below SCA thresholds as light flow remains over the waters through early Sunday. Visibilities will likely be reduced once again tonight through early Sunday morning as fog develops. Though a marine dense fog advisory is not expected to be needed as fog may be patchy in nature, one will be possible if widespread fog develops and is dense and persistent.

Both winds and ocean waves pick up a bit Sunday afternoon to near SCA criteria for the ocean waters. By Sunday evening, wave heights increase to 5ft with wind gusts of 25 - 30 kt through at least Monday afternoon. Gusts fall below SCA threshold Monday evening but seas take a bit longer to fall. All waters should be below SCA threshold by Tuesday morning.

HYDROLOGY. No hydrologic impacts are expected through Thursday. 0.50"-1.00" of rainfall is forecast through the day Monday.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . None. NJ . None. MARINE . None.

SYNOPSIS . JMC/JP NEAR TERM . JP SHORT TERM . JP LONG TERM . JMC/JP AVIATION . MW MARINE . MW HYDROLOGY . JMC/JP


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44039 - Central Long Island Sound 31 mi83 min SE 3.9 G 5.8 46°F 46°F
BRHC3 - 8467150 - Bridgeport, CT 32 mi53 min S 2.9 G 2.9 48°F 47°F1016.8 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 37 mi33 min ESE 9.7 G 12 47°F3 ft1016.5 hPa
NWHC3 - 8465705 - New Haven, CT 37 mi53 min S 2.9 G 4.1 47°F 49°F1018.3 hPa
KPTN6 - 8516945 - Kings Point, NY 44 mi53 min ENE 2.9 G 2.9 49°F 1018.1 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 47 mi33 min SE 5.8 G 7.8 46°F 47°F3 ft1017.6 hPa45°F
44065 - Entrance to New York Harbor 49 mi33 min Calm G 1.9 49°F3 ft1017.1 hPa

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Shirley, Brookhaven Airport, NY6 mi27 minN 08.00 miMostly Cloudy48°F45°F89%1017.9 hPa
Islip, Long Island Mac Arthur Airport, NY10 mi27 minN 310.00 miOvercast50°F48°F93%1017.7 hPa
The Gabreski Airport, NY17 mi30 minN 010.00 miOvercast47°F46°F97%1018.1 hPa

Link to 5 minute data for KHWV

Wind History from HWV (wind in knots)
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Last 24hrSE3CalmCalmCalmS6SE10S9S8S8S5SW5S7SW6S5S7S3S5S3CalmCalmCalmS3CalmCalm
1 day agoNW5NW5NW4N75--S8SW11S12S10S11S8SE6SE4S5SE3CalmCalmCalmE3CalmSE3CalmS3
2 days agoCalmN4NW4N75W7N8N7SW10S8S8SE6SE4SE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Bellport, Bellport Bay, Long Island, New York
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Bellport
Click for Map
Sat -- 05:55 AM EDT     0.02 feet Low Tide
Sat -- 06:04 AM EDT     Moonrise
Sat -- 06:20 AM EDT     Sunrise
Sat -- 11:24 AM EDT     0.87 feet High Tide
Sat -- 06:07 PM EDT     Moonset
Sat -- 06:11 PM EDT     -0.01 feet Low Tide
Sat -- 07:26 PM EDT     Sunset
Sat -- 11:47 PM EDT     0.89 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.70.50.40.20.100.10.30.50.70.90.80.70.60.40.20.1-000.20.50.70.8

Tide / Current Tables for Sayville (Brown Creek), Long Island, New York
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Sayville (Brown Creek)
Click for Map
Sat -- 05:25 AM EDT     0.02 feet Low Tide
Sat -- 06:04 AM EDT     Moonrise
Sat -- 06:20 AM EDT     Sunrise
Sat -- 11:19 AM EDT     0.66 feet High Tide
Sat -- 05:41 PM EDT     -0.01 feet Low Tide
Sat -- 06:08 PM EDT     Moonset
Sat -- 07:26 PM EDT     Sunset
Sat -- 11:42 PM EDT     0.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.50.40.20.1000.10.30.40.60.70.60.50.40.30.10-00.10.20.40.50.7

Weather Map
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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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