Saturday, April4, 2020
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Marine Weather and Tides
Sea Cliff, NY

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:30AMSunset 7:24PM Saturday April 4, 2020 10:49 AM EDT (14:49 UTC) Moonrise 3:14PMMoonset 4:50AM Illumination 88% 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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ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 1009 Am Edt Sat Apr 4 2020
Today..NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft late this morning, then 1 ft or less.
Tonight..S winds around 5 kt. Seas 1 ft or less.
Sun..S winds 5 to 10 kt. Seas 1 ft or less.
Sun night..S winds around 5 kt, becoming nw after midnight. Seas 1 ft or less.
Mon..NW winds 5 to 10 kt. Seas 1 ft or less.
Mon night..SW winds around 5 kt. Seas 1 ft or less.
Tue..NW winds around 5 kt, becoming sw in the afternoon. Seas 1 ft or less.
Tue night..W winds 5 to 10 kt, becoming ne after midnight. Seas 1 ft or less.
Wed..E winds 5 to 10 kt, becoming S in the afternoon. Seas 1 ft or less. Chance of rain.
Wed night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less. Chance of rain.
ANZ300 1009 Am Edt Sat Apr 4 2020
Synopsis for the long island waters and new york harbor.. Offshore low pressure continues to move farther away from the eastern seaboard today. High pressure briefly builds over the waters into tonight. A weak cold front approaches on Sunday and eventually crosses the waters Sunday night. High pressure returns Monday and Tuesday. A frontal system approaches for Wednesday.


7 Day Forecast for Marine Location Near Sea Cliff, NY
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location: 40.86, -73.66     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 041108 AFDOKX

Area Forecast Discussion National Weather Service New York NY 708 AM EDT Sat Apr 4 2020

SYNOPSIS. Weak high pressure briefly builds over the region through Sunday morning. A weak cold front approaches Sunday afternoon and moves across Sunday night. High pressure returns Monday and Tuesday. A series of frontal systems may impact the region Wednesday through Friday.

NEAR TERM /THROUGH TONIGHT/. The mature low pressure system over the Atlantic drifts southeast today as a mid level ridge builds into central New York state. Subsidence from the approaching ridge will dry out the mid and upper atmosphere as RH values above 700 mb are below 25%. However enough moisture in the low levels is expected to keep clouds overhead all throughout the day. Despite the clouds little to no chance for rain is forecast. Mild temperatures will be just around normal for this time of year in the mid to upper 50s Saturday afternoon.

The aforementioned ridge axis stretching from Maine to West Virginia moves off the east coast tonight into early Sunday morning. Cloudiness should hold temperatures in the low 40s near the city though some surrounding areas could see temperatures in the low 30s prior to sunrise.

SHORT TERM /SUNDAY THROUGH MONDAY/. Sunday begins dry but some showers could be possible late in the day towards the evening.Near the surface the high from the ridge aloft shifts east of the area allowing for south wind in return moisture into the area. Precipitable water values increase from 0.50 to 0.80 inches. At the same time a shortwave trough in southern Quebec and a weak frontal boundary extending into the Mid-Atlantic pushes through the northeast states Sunday evening. The front could provide the necessary lift needed for isolated showers Sunday night. Though with the main area of positive vorticity advection being off to the north only slight chances for showers are forecast for now.

Following the frontal passage the atmospheric column dries considerably as a surface high builds into central New York state. Monday could be the first sunny day in over five days with afternoon temperatures rising into the low 60s.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/. A quiet night Monday night into Tuesday morning with overnight minimums falling into the 40s throughout the area as the surface high once over central New York travels offshore. This brings an end to the dry weather owing to a moisture return from south winds.

A complex frontal system extending east from low pressure across the nation's mid-section will approach into Tuesday. There is some disagreement as to how the front will set up and how close it actually gets to the region. Some global guidance has enough of a confluence zone to the north to promote surface high pressure building to our north, which could fend off the warm front, at least at the surface for a time later Tuesday into early Wednesday. The big question is when and where will the warm front stall and become stationary. In any event, there will be a good deal of clouds moving back into the region late Monday night into Tuesday. The timing and the advancement east of precip, which will be in the form of rain will prove to be difficult due to the uncertainty that currently exists. After collaboration with surrounding offices through it prudent to go with slight chances POPs beginning early Tuesday morning and through Tuesday night. Then raised to chance POPs on Wednesday as potential surface low draws closer. Chose to continue with low end chance POPs, mainly due to model uncertainty.

A strong shortwave associated with an intensifying upper level low will then slide down out of the northwest territories of Canada for later in the week. If this does indeed pan out then a cold pool aloft will exist with a good deal of at least daytime heating associated cloud cover into Friday. High pressure will then gradually build in late in the week and into the start of the following weekend with diminishing winds and dry weather expected. Temperatures on average will remain several degrees above normal through much of the long term, with temperatures trending cooler during the second half of the period.

AVIATION /12Z SATURDAY THROUGH WEDNESDAY/. Weak high pressure builds over the terminals through tonight.

Mainly MVFR this morning with ceilings around 020-030. Some improvement to low end VFR is expected for the afternoon and early evening. MVFR ceilings likely return overnight into Sunday morning.

N-NE winds 10-15 kt through this morning. Gusts should be most frequent at ISP and GON, but there could be some occasional gusts to around 20 kt at JFK and BDR. Winds weaken in the afternoon as the direction veers towards the E and then SE late. Light and/or variable winds are forecast tonight.

OUTLOOK FOR 12Z SUNDAY THROUGH WEDNESDAY. Sunday. MVFR ceilings possible. Slight chance of rain late in the day and night. Monday-Tuesday. Mainly VFR. Slight chance of rain on Tuesday. Wednesday. MVFR or lower and rain possible.

MARINE. Low pressure will continue moving away from the Eastern Seaboard today. The pressure gradient over the waters will gradually relax leading to a weakening of winds through the day. SCA gusts on the Eastern Sound and Eastern LI Bays will end by noon and on the waters east of Moriches Inlet this evening. However, seas will remain elevated above 5 ft on the ocean waters due to lingering easterly swells through Sunday. Therefore, the SCA has been extended through 22z Sunday on the ocean waters. Ocean seas should then fall below 5 ft Sunday night. Otherwise, a relaxed pressure gradient over the waters through Tuesday will lead to sub-SCA conditions. An approaching frontal system for the middle week could build seas and increase wind gusts, but sub-SCA conditions should continue.

HYDROLOGY. No hydrologic impacts are expected through the period.

TIDES/COASTAL FLOODING. Widespread minor coastal flooding is expected for LI shorelines, NY/NJ Harbor and along Western LI Sound with this mornings high tide cycle. Localized moderate flood impacts are possible for the south shore back bays of LI.

Breaking waves of 4 to 8 ft continue this morning, gradually subsiding through the day. Scattered areas of beach erosion and localized washovers are possible during the times of high tide along the Atlantic oceanfront and Orient Point with the highest threat this morning.

Surge expected to gradually subside through the day. Localized minor coastal flooding is possible along the south shore back bays of LI with this evenings high tide and possible again during Sunday mornings high tide. Coastal flood statements are possible. Elsewhere, forecast tide levels fall below minor benchmarks for Saturday evening and Sunday morning high tide.

EQUIPMENT. NYC NOAA Weather Radio Station KWO35 (162.55 MHz) is undergoing its final stages of testing, and is operating at full power.

OKX WATCHES/WARNINGS/ADVISORIES. CT . Coastal Flood Advisory until 10 AM EDT this morning for CTZ009. NY . Coastal Flood Advisory until 10 AM EDT this morning for NYZ071- 078-079-081-177. Coastal Flood Advisory until 11 AM EDT this morning for NYZ080- 179. NJ . None. MARINE . Small Craft Advisory until noon EDT today for ANZ330-340. Small Craft Advisory until 6 PM EDT Sunday for ANZ350-353-355.

SYNOPSIS . DJ/DS NEAR TERM . DJ SHORT TERM . DJ LONG TERM . JE AVIATION . DS MARINE . DS HYDROLOGY . DJ TIDES/COASTAL FLOODING . EQUIPMENT .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44022 - Execution Rocks 4 mi49 min NE 9.7 G 14 46°F 32°F43°F
KPTN6 - 8516945 - Kings Point, NY 7 mi55 min E 5.1 G 8.9 48°F 52°F1017.1 hPa
44040 - Western Long Island Sound 8 mi64 min NE 9.7 G 14 46°F 2 ft41°F
BATN6 - 8518750 - The Battery, NY 22 mi55 min 47°F 47°F1016.6 hPa
ROBN4 - 8530973 - Robins Reef, NJ 26 mi55 min N 5.1 G 6 46°F 1016.4 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 30 mi55 min 47°F 48°F1016.7 hPa
MHRN6 31 mi55 min NNE 7 G 9.9
BRHC3 - 8467150 - Bridgeport, CT 33 mi55 min NE 8.9 G 16 47°F 45°F1016 hPa
SDHN4 - 8531680 - Sandy Hook, NJ 33 mi55 min NNE 4.1 G 7 47°F 48°F1016.9 hPa
44065 - Entrance to New York Harbor 34 mi39 min NE 9.7 G 12 46°F 1016.6 hPa41°F
NWHC3 - 8465705 - New Haven, CT 49 mi55 min E 4.1 G 7 47°F 45°F1015.7 hPa

Wind History for Kings Point, NY
(wind in knots)    EDIT      (on/off)   Help
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G20
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G27

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New York, La Guardia Airport, NY13 mi58 minENE 910.00 miOvercast48°F39°F74%1016.4 hPa
New York, Kennedy International Airport, NY15 mi58 minNE 1310.00 miOvercast48°F41°F77%1016.6 hPa
Farmingdale - Republic Airport, NY16 mi56 minNE 13 G 2310.00 miOvercast49°F37°F66%1016 hPa
White Plains - Westchester County Airport, NY16 mi53 minN 910.00 miMostly Cloudy47°F39°F74%1016.3 hPa
New York City, Central Park, NY17 mi58 minNE 710.00 miOvercast48°F42°F80%1016.4 hPa
Teterboro, Teterboro Airport, NJ21 mi58 minNE 510.00 miOvercast49°F42°F77%1016.2 hPa

Link to 5 minute data for KLGA

Wind History from LGA (wind in knots)
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N8N11N8N8NE13
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1 day agoN15
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NW18NW19
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2 days agoE11NE11NE5N6NW14
G19
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NW7N15N10N11N11N7NW13NW13NW12N13
G20
NW12NW17NW13
G21
NW14NW14
G20
NW11NW18
G25

Tide / Current Tables for Glen Cove, Hempstead Harbor, Long Island, New York
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
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Throg's Neck
Click for Map
Sat -- 03:21 AM EDT     0.96 knots Max Flood
Sat -- 04:49 AM EDT     Moonset
Sat -- 06:11 AM EDT     -0.00 knots Slack
Sat -- 06:32 AM EDT     Sunrise
Sat -- 09:35 AM EDT     -0.69 knots Max Ebb
Sat -- 12:23 PM EDT     0.00 knots Slack
Sat -- 03:14 PM EDT     Moonrise
Sat -- 03:46 PM EDT     0.96 knots Max Flood
Sat -- 06:28 PM EDT     -0.00 knots Slack
Sat -- 07:23 PM EDT     Sunset
Sat -- 09:58 PM EDT     -0.75 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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00.20.50.90.80.40-0.2-0.4-0.6-0.7-0.4-0.10.10.30.80.90.60.1-0.1-0.4-0.6-0.7-0.6

Weather Map
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wmap_A
GEOS Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New York City/Upton, NY (10,2,3,4)
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Ground Weather Radar Station Upton, NY
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.