Marine Weather and Tide Forecast for Stony Brook, NY
April 28, 2024 11:17 PM EDT (03:17 UTC) Change Location
 | Sunrise 5:51 AM Sunset 7:47 PM Moonrise 12:05 AM Moonset 8:39 AM |
ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 754 Pm Edt Sun Apr 28 2024
Tonight - S winds around 5 kt, becoming W after midnight. Seas 1 ft or less. Wave detail: sw 1 ft at 2 seconds. Chance of showers until early morning. Patchy fog after midnight with vsby 1 to 3 nm.
Mon - NW winds 5 to 10 kt. Seas 1 ft or less. Patchy fog in the morning. Slight chance of showers in the afternoon. Vsby 1 to 3 nm in the morning.
Mon night - E winds 5 to 10 kt. Seas 1 ft or less. Wave detail: se 1 ft at 2 seconds. Slight chance of showers.
Tue - E winds 5 to 10 kt. Seas 1 ft or less. Wave detail: E 1 ft at 2 seconds. Slight chance of showers.
Tue night - E winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. Slight chance of tstms after midnight.
Wed - NE winds 5 to 10 kt. Seas 1 ft or less. Wave detail: ne 1 ft at 3 seconds. Chance of showers.
Wed night - E winds 5 to 10 kt. Seas 1 ft or less.
Thu - SE winds 5 to 10 kt. Seas 1 ft or less.
Thu night - S winds 5 to 10 kt. Seas 1 ft or less.
Fri - S winds 5 to 10 kt. Seas 1 ft or less.
Fri night - S winds 5 to 10 kt. Seas 1 ft or less.
winds and seas may be higher in and near tstms.
winds and seas may be higher in and near tstms.
ANZ300 754 Pm Edt Sun Apr 28 2024
Synopsis for the long island and connecticut coastal waters - A warm front lifts north and east through the area tonight, followed by a weak trough or cold front late tonight. The boundary returns as a back door cold front on Monday, before a frontal wave moves out of the ohio valley Tuesday, passing to the the south and east Tuesday night into Wednesday. High pressure builds in for the second half of the week, followed by another frontal system over the weekend.
Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 290037 AFDOKX
Area Forecast Discussion National Weather Service New York NY 837 PM EDT Sun Apr 28 2024
SYNOPSIS
A warm front lifts north and east through the area tonight, followed by a weak trough or cold front late tonight. The boundary returns as a back door cold front on Monday, before a frontal wave moves out of the Ohio Valley Tuesday, passing to the the south and east Tuesday night into Wednesday. High pressure builds in for the second half of the week, followed by another frontal system over the weekend.
NEAR TERM /UNTIL 6 AM MONDAY MORNING/
Showers along a warm front will continue to drop down from the NW tonight with the best chance being across the Lower Hudson Valley. Instability is marginal and mainly north and west of the NYC metro, where there could be an isolated thunderstorm. Elsewhere, showers will be scattered and generally light this evening.
The warm front will eventually lift north and east of the area tonight. Behind the front, temperatures have managed to climb into the 70s with a mild SW.
Showers will gradual dissipate through the evening, ending before midnight for most locations.
Temperatures tonight will run above normal by about 10 degrees, with lows in the 50s and low 60s. Patchy fog is possible overnight into early Monday morning, and could be dense in a few locales.
SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/
Amplified ridging aloft remains over the Eastern US on Monday, with a surface high sitting off the Southeast coast. The warm front that meandered thru will return as a cold front that attempts to slowly backdoor the region thru the day.
Before the fropa, NW flow that developed behind the surface trough should aid deeper mixing than over the weekend and help lead to summerlike levels of warmth for parts of the area.
Still some uncertainty in the temperature forecast as timing of a back door cold front and lingering cloud cover will be key factors in just how warm the BL can get. Should the front advance a bit quicker, temperatures in and around NYC may be a bit cooler than currently forecast. Blended in some of the latest guidance that indicates a slightly quicker fropa across eastern areas, resulting in cooler highs here. West of the Hudson and away from maritime influence, temperatures should get into the low 80s by lunchtime, likely topping out in the mid 80s before falling back late day. Potential continues for parts of urban NE NJ to get into the upper 80s, or near record heat for late April. See Climate section below for records data.
The back door cold front advances south and west into the evening hours, and conditions should quickly cool back into the 60s everywhere by mid evening. Low clouds likely develops in the easterly flow behind the front, and will need to monitor for fog potential overnight into Tuesday AM.
LONG TERM /TUESDAY THROUGH SUNDAY/
*Key Points*
*Near to slightly below normal temperatures to start the period followed by a slight warmup for the week's end.
*Mainly dry conditions expected with a few chances of showers and thunderstorms as multiple frontal systems impact the area during the period.
Upper ridging along the eastern seaboard weakens while moving out into the Atlantic on Tuesday. This will allow weakening low pressure over the Ohio Valley to track east along the front, passing to the south and east of the area Tuesday night into Wednesday. The best forcing looks to reside north across the Mid Hudson Valley and central New England. Rainfall chances have trended down with this event due to blocking across the western Atlantic. An isolated thunderstorm can't be ruled out Tuesday night. With the low tracking to the south Wednesday, some light rain and/or drizzle could linger during the first half of the day, especially eastern areas. Ridging returns for the second half of the week and the trend here has been more amplified and slower. Thus, the remainder of the week looks to be dry. Another upper trough then lifts north out of the intermountain west on Friday, then up into the Great Lakes over the weekend. This will send another weakening frontal system into the area Saturday into Sunday.
As for temperatures, an easterly flow on Tuesday following a backdoor cold front will return highs closer to normal. A gradual warmup can then be expected for the rest of the week with temperatures 3 to 5 degrees above normal along the coast, but to 5 to 10 degrees inland. Chance of rain and cloud cover Saturday and Sunday knocks temps down a bit.
AVIATION /00Z MONDAY THROUGH FRIDAY/
A weak trough approaches this evening and crosses through overnight. A back door cold front moves through Monday afternoon.
Generally VFR through the TAF period. Showers are moving through the Lower Hudson Valley, northeast New Jersey, and southwestern Connecticut, and will move southeast through the evening. There may be brief lowering of visibility as the heavier showers move through, between 3-5 SM until 02Z for more western terminals and until 04Z for more eastern terminals. The probability of thunder has decreased, but still cannot be totally ruled out.
So, although thunder has been taken out of all TAFs, an isolated thunderstorm is still possible (for the same timeframe as previously stated for visibility). Thereafter, conditions remain dry or mainly dry through the forecast period. There is a low chance for fog to develop late tonight, mainly at outlying terminals, but should generally be MVFR.
Light SE to SW winds 5 to around 10 kt continue, shifting to a general SW to W direction after 03Z. Outlying terminals may go light and variable tonight. Winds then become W to NW late tonight with trough passage, then shift to the N, and eventually E to SE by mid to late Monday afternoon as high pressure builds in from the northeast. Wind speeds remain around 10 kt or less.
There may be a sea breeze that briefly develops in the afternoon for KJFK, KBDR, KISP, and KGON. The sea breeze will be short lived for more eastern terminals as the winds shift to the E to SE in these locations first.
NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
Brief reduction in visibility to 5 SM through 04Z possible.
Sea breeze development Monday afternoon possible for KJFK and less likely for KLGA. Timing is uncertain, especially with high pressure building in from the east shifting winds to the E to NE later in the afternoon and early evening hours.
OUTLOOK FOR 00Z TUESDAY THROUGH FRIDAY...
Monday night: MVFR, then VFR. NW/N winds under 10 kt AM, shifting to E/SE winds in the aft/eve. Slight chance of PM shra/tsra.
Tuesday: MVFR or lower conds. PM SHRA potential, w/ slight TSRA potential for NW terminals. E/NE winds.
Wednesday: MVFR or lower conds. E/NE winds.
Thursday thru Friday: VFR.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/ www.weather.gov/zny/n90
MARINE
Winds and seas will remain below advisory levels through late week under a weak pressure gradient regime.
HYDROLOGY
No hydrologic concerns through the end of the week.
CLIMATE
Here are the record high temperatures for Monday, April 29:
EWR: 91/1974 BDR: 86/2017 NYC: 89/1974 LGA: 88/2017* JFK: 85/2017 ISP: 85/2017
*Also occurred in previous years
OKX WATCHES/WARNINGS/ADVISORIES
CT...None.
NY...None.
NJ...None.
MARINE...None.
Area Forecast Discussion National Weather Service New York NY 837 PM EDT Sun Apr 28 2024
SYNOPSIS
A warm front lifts north and east through the area tonight, followed by a weak trough or cold front late tonight. The boundary returns as a back door cold front on Monday, before a frontal wave moves out of the Ohio Valley Tuesday, passing to the the south and east Tuesday night into Wednesday. High pressure builds in for the second half of the week, followed by another frontal system over the weekend.
NEAR TERM /UNTIL 6 AM MONDAY MORNING/
Showers along a warm front will continue to drop down from the NW tonight with the best chance being across the Lower Hudson Valley. Instability is marginal and mainly north and west of the NYC metro, where there could be an isolated thunderstorm. Elsewhere, showers will be scattered and generally light this evening.
The warm front will eventually lift north and east of the area tonight. Behind the front, temperatures have managed to climb into the 70s with a mild SW.
Showers will gradual dissipate through the evening, ending before midnight for most locations.
Temperatures tonight will run above normal by about 10 degrees, with lows in the 50s and low 60s. Patchy fog is possible overnight into early Monday morning, and could be dense in a few locales.
SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/
Amplified ridging aloft remains over the Eastern US on Monday, with a surface high sitting off the Southeast coast. The warm front that meandered thru will return as a cold front that attempts to slowly backdoor the region thru the day.
Before the fropa, NW flow that developed behind the surface trough should aid deeper mixing than over the weekend and help lead to summerlike levels of warmth for parts of the area.
Still some uncertainty in the temperature forecast as timing of a back door cold front and lingering cloud cover will be key factors in just how warm the BL can get. Should the front advance a bit quicker, temperatures in and around NYC may be a bit cooler than currently forecast. Blended in some of the latest guidance that indicates a slightly quicker fropa across eastern areas, resulting in cooler highs here. West of the Hudson and away from maritime influence, temperatures should get into the low 80s by lunchtime, likely topping out in the mid 80s before falling back late day. Potential continues for parts of urban NE NJ to get into the upper 80s, or near record heat for late April. See Climate section below for records data.
The back door cold front advances south and west into the evening hours, and conditions should quickly cool back into the 60s everywhere by mid evening. Low clouds likely develops in the easterly flow behind the front, and will need to monitor for fog potential overnight into Tuesday AM.
LONG TERM /TUESDAY THROUGH SUNDAY/
*Key Points*
*Near to slightly below normal temperatures to start the period followed by a slight warmup for the week's end.
*Mainly dry conditions expected with a few chances of showers and thunderstorms as multiple frontal systems impact the area during the period.
Upper ridging along the eastern seaboard weakens while moving out into the Atlantic on Tuesday. This will allow weakening low pressure over the Ohio Valley to track east along the front, passing to the south and east of the area Tuesday night into Wednesday. The best forcing looks to reside north across the Mid Hudson Valley and central New England. Rainfall chances have trended down with this event due to blocking across the western Atlantic. An isolated thunderstorm can't be ruled out Tuesday night. With the low tracking to the south Wednesday, some light rain and/or drizzle could linger during the first half of the day, especially eastern areas. Ridging returns for the second half of the week and the trend here has been more amplified and slower. Thus, the remainder of the week looks to be dry. Another upper trough then lifts north out of the intermountain west on Friday, then up into the Great Lakes over the weekend. This will send another weakening frontal system into the area Saturday into Sunday.
As for temperatures, an easterly flow on Tuesday following a backdoor cold front will return highs closer to normal. A gradual warmup can then be expected for the rest of the week with temperatures 3 to 5 degrees above normal along the coast, but to 5 to 10 degrees inland. Chance of rain and cloud cover Saturday and Sunday knocks temps down a bit.
AVIATION /00Z MONDAY THROUGH FRIDAY/
A weak trough approaches this evening and crosses through overnight. A back door cold front moves through Monday afternoon.
Generally VFR through the TAF period. Showers are moving through the Lower Hudson Valley, northeast New Jersey, and southwestern Connecticut, and will move southeast through the evening. There may be brief lowering of visibility as the heavier showers move through, between 3-5 SM until 02Z for more western terminals and until 04Z for more eastern terminals. The probability of thunder has decreased, but still cannot be totally ruled out.
So, although thunder has been taken out of all TAFs, an isolated thunderstorm is still possible (for the same timeframe as previously stated for visibility). Thereafter, conditions remain dry or mainly dry through the forecast period. There is a low chance for fog to develop late tonight, mainly at outlying terminals, but should generally be MVFR.
Light SE to SW winds 5 to around 10 kt continue, shifting to a general SW to W direction after 03Z. Outlying terminals may go light and variable tonight. Winds then become W to NW late tonight with trough passage, then shift to the N, and eventually E to SE by mid to late Monday afternoon as high pressure builds in from the northeast. Wind speeds remain around 10 kt or less.
There may be a sea breeze that briefly develops in the afternoon for KJFK, KBDR, KISP, and KGON. The sea breeze will be short lived for more eastern terminals as the winds shift to the E to SE in these locations first.
NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
Brief reduction in visibility to 5 SM through 04Z possible.
Sea breeze development Monday afternoon possible for KJFK and less likely for KLGA. Timing is uncertain, especially with high pressure building in from the east shifting winds to the E to NE later in the afternoon and early evening hours.
OUTLOOK FOR 00Z TUESDAY THROUGH FRIDAY...
Monday night: MVFR, then VFR. NW/N winds under 10 kt AM, shifting to E/SE winds in the aft/eve. Slight chance of PM shra/tsra.
Tuesday: MVFR or lower conds. PM SHRA potential, w/ slight TSRA potential for NW terminals. E/NE winds.
Wednesday: MVFR or lower conds. E/NE winds.
Thursday thru Friday: VFR.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/ www.weather.gov/zny/n90
MARINE
Winds and seas will remain below advisory levels through late week under a weak pressure gradient regime.
HYDROLOGY
No hydrologic concerns through the end of the week.
CLIMATE
Here are the record high temperatures for Monday, April 29:
EWR: 91/1974 BDR: 86/2017 NYC: 89/1974 LGA: 88/2017* JFK: 85/2017 ISP: 85/2017
*Also occurred in previous years
OKX WATCHES/WARNINGS/ADVISORIES
CT...None.
NY...None.
NJ...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| BRHC3 - 8467150 - Bridgeport, CT | 18 mi | 48 min | 0G | 57°F | 29.98 | |||
| NWHC3 - 8465705 - New Haven, CT | 28 mi | 48 min | SW 4.1G | 56°F | 52°F | 30.03 | ||
| 44022 - Execution Rocks | 31 mi | 33 min | NNE 5.8 | 55°F | 30.02 | 53°F | ||
| KPTN6 - 8516945 - Kings Point, NY | 33 mi | 48 min | 0G | 56°F | 30.04 | |||
| 44025 - LONG ISLAND 33 NM South of Islip, NY | 46 mi | 38 min | SW 3.9G | 52°F | 49°F | 30.03 | 52°F | |
| 44065 - Entrance to New York Harbor | 48 mi | 38 min | W 7.8G | 56°F | 52°F | 30.04 | 54°F | |
| BATN6 - 8518750 - The Battery, NY | 48 mi | 48 min | 60°F | 52°F | 29.98 |
toggle option: (graph/table)
Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KISP LONG ISLAND MAC ARTHUR,NY | 9 sm | 21 min | SW 04 | 10 sm | Overcast | 57°F | 55°F | 94% | 30.02 | |
| KHWV BROOKHAVEN,NY | 16 sm | 21 min | calm | 9 sm | Overcast | 57°F | 45°F | 63% | 30.03 | |
| KBDR IGOR I SIKORSKY MEMORIAL,CT | 17 sm | 25 min | N 03 | 10 sm | Overcast | 57°F | 54°F | 88% | 30.01 | |
| KFRG REPUBLIC,NY | 19 sm | 24 min | calm | 10 sm | Overcast | 61°F | 55°F | 82% | 30.03 |
Tide / Current for Stony Brook, Smithtown Bay, Long Island Sound, New York
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Stony Brook
Click for Map
Sun -- 12:04 AM EDT Moonrise
Sun -- 02:37 AM EDT 6.49 feet High Tide
Sun -- 05:54 AM EDT Sunrise
Sun -- 08:38 AM EDT Moonset
Sun -- 09:11 AM EDT 0.36 feet Low Tide
Sun -- 03:16 PM EDT 5.69 feet High Tide
Sun -- 07:46 PM EDT Sunset
Sun -- 09:19 PM EDT 1.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:04 AM EDT Moonrise
Sun -- 02:37 AM EDT 6.49 feet High Tide
Sun -- 05:54 AM EDT Sunrise
Sun -- 08:38 AM EDT Moonset
Sun -- 09:11 AM EDT 0.36 feet Low Tide
Sun -- 03:16 PM EDT 5.69 feet High Tide
Sun -- 07:46 PM EDT Sunset
Sun -- 09:19 PM EDT 1.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Stony Brook, Smithtown Bay, Long Island Sound, New York, Tide feet
| 12 am |
| 4.4 |
| 1 am |
| 5.6 |
| 2 am |
| 6.3 |
| 3 am |
| 6.4 |
| 4 am |
| 5.8 |
| 5 am |
| 4.6 |
| 6 am |
| 3.1 |
| 7 am |
| 1.7 |
| 8 am |
| 0.8 |
| 9 am |
| 0.4 |
| 10 am |
| 0.6 |
| 11 am |
| 1.5 |
| 12 pm |
| 2.8 |
| 1 pm |
| 4.2 |
| 2 pm |
| 5.2 |
| 3 pm |
| 5.7 |
| 4 pm |
| 5.5 |
| 5 pm |
| 4.7 |
| 6 pm |
| 3.6 |
| 7 pm |
| 2.4 |
| 8 pm |
| 1.5 |
| 9 pm |
| 1.1 |
| 10 pm |
| 1.2 |
| 11 pm |
| 2 |
Mount Sinai Harbor
Click for Map
Sun -- 12:04 AM EDT Moonrise
Sun -- 02:35 AM EDT 6.42 feet High Tide
Sun -- 05:53 AM EDT Sunrise
Sun -- 08:38 AM EDT Moonset
Sun -- 09:19 AM EDT 0.35 feet Low Tide
Sun -- 03:13 PM EDT 5.63 feet High Tide
Sun -- 07:46 PM EDT Sunset
Sun -- 09:27 PM EDT 1.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:04 AM EDT Moonrise
Sun -- 02:35 AM EDT 6.42 feet High Tide
Sun -- 05:53 AM EDT Sunrise
Sun -- 08:38 AM EDT Moonset
Sun -- 09:19 AM EDT 0.35 feet Low Tide
Sun -- 03:13 PM EDT 5.63 feet High Tide
Sun -- 07:46 PM EDT Sunset
Sun -- 09:27 PM EDT 1.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Mount Sinai Harbor, Long Island Sound, New York, Tide feet
| 12 am |
| 4.3 |
| 1 am |
| 5.5 |
| 2 am |
| 6.3 |
| 3 am |
| 6.4 |
| 4 am |
| 5.7 |
| 5 am |
| 4.5 |
| 6 am |
| 3.1 |
| 7 am |
| 1.8 |
| 8 am |
| 0.9 |
| 9 am |
| 0.4 |
| 10 am |
| 0.5 |
| 11 am |
| 1.4 |
| 12 pm |
| 2.7 |
| 1 pm |
| 4.1 |
| 2 pm |
| 5.1 |
| 3 pm |
| 5.6 |
| 4 pm |
| 5.4 |
| 5 pm |
| 4.7 |
| 6 pm |
| 3.5 |
| 7 pm |
| 2.4 |
| 8 pm |
| 1.6 |
| 9 pm |
| 1.1 |
| 10 pm |
| 1.2 |
| 11 pm |
| 1.9 |
Upton, NY,
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