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Marine Weather and Tides Port Jefferson, 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.

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Sunrise 6:18AM

Sunset 5:49PM

Friday March 5, 2021 2:16 AM EST (07:16 UTC)

Moonrise 1:22AM

Moonset 11:10AM

Illumination 59%

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.

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7 Day Forecast for Marine Location Near Port Jefferson, NY

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Area Discussion for - New York City/Upton, NY

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FXUS61 KOKX 050644 AFDOKX

Area Forecast Discussion National Weather Service New York NY 144 AM EST Fri Mar 5 2021

SYNOPSIS. Low pressure system north of Maine meanders over eastern Canada through Friday as a high pressure over central Canada dives south into the Great Lakes region. The high will build over the region Sunday and remain in control Monday, and then shift to the south and east into the middle of next week. The high moves offshore Wednesday night and Thursday as a cold front slowly approaches from the west.

NEAR TERM /THROUGH TODAY/. Forecast is generally on track. Just a few minor adjustments with respect to winds over land, thus adjusted up with winds for the next few hours.

High pressure north of the Great Lakes Region continues to force dry air from the northwest into the local area. Winds around 15-20 mph drive dew points down from the teens into the single digits overnight. Likewise a chilly night is in store as ambient temperatures fall into the low 20s and upper teens. Sky cover remains rather clear with possibly some mid-level clouds creeping in prior to sunrise as a weak reinforcing cold front pushes south into Long Island.

SHORT TERM /TONIGHT THROUGH 6 PM SATURDAY/. Trough north of Maine remains quasi-stationary through Friday with dry conditions dominating for the day. As the surface low over eastern Canada slowly fills, the high pressure system over central Canada nudges south following the upper level southwesterly flow. Locally this maintains and even slightly strengthens the pressure gradient over the Northeast states and northwest winds over souther New York remain stable 15-20 mph with gusts up to 30 mph. Temperatures by the afternoon will be around 10 degrees colder on average that the day prior settling back in the mid to low 30s. Additionally, wind chills will make it feel like the low 20s even with clear skies.

As the Sun sets expect winds to decouple and gusts to come to a end for the evening. The relaxing winds and end to the mixing should allow dew points to slightly recover overnight. This does help overnight minimums which are expected to be in the mid to low 20s throughout the area.

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/. Upper ridging will be building into the eastern U.S. beginning Saturday, as a deep closed upper low over eastern Canada and the northeast weakens and slowly tracks east, and continuing into Wednesday. A cool airmass will remain over the northeast Saturday with weak cold advection gradually ending into Saturday night. With surface high pressure to the west Saturday, a gusty northwest flow will dominate, and temperatures will remain up to 10 degrees below normal. Deep northwest flow will continue Saturday night through Sunday night as heights slowly rise with the approach of the ridge axis. Below normal temperatures are expected into Monday, however, weak warm advection begins to setup during Monday as low level winds gradually back, and a warming trend begins. The warming will then continue into the end of the week, with stronger warming expected Wednesday and Thursday as the surface high and upper ridge begin to move offshore. By Thursday temperatures may be as much as 10 to 15 degrees above normal seasonal levels. The southwesterly flow that does set up Tuesday through Thursday will keep temperatures along the coast several degrees lower as ocean water temperature remain in the lower 40s. A frontal system will be approaching for Thursday, however, the trend has been for the eastern ridge to be slower to move offshore as the trough deepens across the central U.S. As a result, will have low to slight chance probabilities for Thursday, with the possibility of Thursday remaining dry.

AVIATION /07Z FRIDAY THROUGH TUESDAY/. VFR with gusty NW winds as the region remains between high pressure over the Midwest and low pressure over the Canadian Maritimes.

NW winds 15-20G25-30kt, which may lull somewhat to 15-20G20-25kt right before the into the AM push, then pick up again to 15-20G25- 30kt, while shifting slightly right of, on, or just left of 310 mag.

. NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty .

Occasional gusts around 30-35 kt are possible through 09z.

OUTLOOK FOR 06Z SATURDAY THROUGH TUESDAY. Friday night and Saturday. VFR. NW winds 10-15G20kt. Saturday night through Tuesday. VFR.

Detailed information, including hourly TAF wind component forecasts, can be found at: http:/www.weather.gov/zny/n90

MARINE. With the gusty winds, elevated seas, and low temperatures expected later tonight into Friday morning, updated to add a chance of light freezing spray to the ocean waters and eastern Long Island Sound.

Persistent SCA criteria offshore winds remain through the short-term forecast. Particularly offshore gusts between 25-30 kts are expected through Saturday morning. Waves are anticipated to hold around 4 feet through late Friday before beginning to wane possibly Saturday morning.

Small craft advisory wind gusts will be possible across all the forecast waters Saturday morning as deep low pressure continues to meander through the Canadian Maritimes and high pressure builds to the west. In addition, ocean seas will be subsiding to below 5 feet in a west to northwest flow. Conditions will be gradually improving through Saturday from west to east, as high pressure builds toward the waters from the northwest. There is some uncertainty as to how quickly the high builds toward the forecast waters, and SCA conditions may linger into late Saturday. After Saturday tranquil conditions are expected into early next week as high pressure dominates.

HYDROLOGY. The dry weather regime will continue, thus there are no hydrologic concerns into the middle of next week.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . None. NJ . None. MARINE . Small Craft Advisory until 6 PM EST this evening for ANZ330- 335-338-340-345. Small Craft Advisory until 7 AM EST Saturday for ANZ350-353- 355.

SYNOPSIS . DJ/MET NEAR TERM . JE/DJ SHORT TERM . DJ LONG TERM . MET AVIATION . JC MARINE . DJ/MET HYDROLOGY . DJ/MET

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
BRHC3 - 8467150 - Bridgeport, CT	17 mi	46 min	NW 6 G 13	26°F	37°F		1009.3 hPa
NWHC3 - 8465705 - New Haven, CT	24 mi	46 min	NNW 18 G 23	28°F	37°F		1009.2 hPa
44039 - Central Long Island Sound	25 mi	76 min	WNW 25 G 33	29°F	37°F	5 ft
44022 - Execution Rocks	36 mi	31 min	WNW 16 G 21	27°F				14°F
KPTN6 - 8516945 - Kings Point, NY	39 mi	46 min	N 17 G 22	27°F			1012.4 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY	49 mi	26 min	NW 25 G 31		40°F	7 ft	1009.9 hPa

Wind History for Bridgeport, CT

(wind in knots)    EDIT      (on/off)   Help

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9 AM

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11 AM

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1 PM

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1 AM

Last 24hr

N1

N3

W1

W3

W3 G9

NW3

NW5 G8

NW9 G13

N9 G13

NW9 G17

NW10 G15

NW8 G14

N12 G17

NW11 G18

NW11 G17

NW11 G17

NW10 G16

NW11 G17

NW9 G14

NW8 G13

NW7 G10

NW10 G18

NW8 G17

NW8 G12

1 day ago

W2

W4 G8

W2 G5

SW3 G6

SW4 G7

NW3 G8

NW3 G6

SW5 G9

NW5

NW4 G8

NW9 G14

W10 G14

NW8 G16

NW8 G11

NW6 G10

NW3 G9

NW4 G9

NW3

NW4 G8

NW4 G8

W1

NW2 G5

N3

N3

2 days ago

NW14 G19

NW11 G16

NW12 G19

NW11 G22

NW10 G20

NW9 G22

NW11 G19

NW11 G23

NW10 G19

NW8 G17

W12 G17

W8 G15

W7 G14

W4 G9

W3 G11

W3 G6

SW3

SW4

SW3

W3

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Islip, Long Island Mac Arthur Airport, NY	11 mi	20 min	NW 17 G 22	10.00 mi	Fair	26°F	9°F	48%	1009.3 hPa
Shirley, Brookhaven Airport, NY	14 mi	20 min	NW 15 G 26	10.00 mi	Fair	27°F	8°F	45%	1009 hPa
Bridgeport, Sikorsky Memorial Airport, CT	16 mi	24 min	WNW 10 G 16	10.00 mi	A Few Clouds	27°F	7°F	43%	1009.3 hPa
The Gabreski Airport, NY	24 mi	23 min	NW 17 G 27	10.00 mi	Fair	26°F	8°F	46%	1008.5 hPa
Farmingdale - Republic Airport, NY	24 mi	23 min	NW 12 G 22	10.00 mi	Fair	27°F	8°F	45%	1010.1 hPa

Link to 5 minute data for KISP

Wind History from ISP (wind in knots)

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W3

Calm

W6

W7

W8

NW12

NW15 G23

NW17 G22

N13 G23

NW21 G24

NW18 G24

NW18 G28

W20 G27

NW20 G29

NW21 G26

NW21 G28

NW15 G25

NW16 G25

NW10 G23

NW18 G24

NW17 G25

NW18 G24

NW20 G27

NW17 G22

1 day ago

SW7

SW8

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W9

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NW14

W7

W8 G16

W7

W12

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NW7

N3

W5

NW6

NW4

N3

W3

Calm

Calm

2 days ago

NW23 G38

W27 G35

NW23 G33

NW20 G46

NW19 G33

NW22 G32

NW23 G37

NW22 G32

NW20 G32

NW20 G27

W26 G33

W18 G29

W17 G29

W18 G26

W15 G27

NW16 G24

W10

NW8

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Calm

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Tide / Current Tables for Port Jefferson, Long Island Sound, New York

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Tide / Current Tables for Stratford Shoal, Long Island Sound, New York

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Weather Map

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GEOS Local Image of    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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