Friday, April10, 2020
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Marine Weather and Tides
Elmont, 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 6:21AMSunset 7:30PM Friday April 10, 2020 2:52 AM EDT (06:52 UTC) Moonrise 10:52PMMoonset 8:13AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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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ANZ355 Sandy Hook Nj To Fire Island Inlet Ny Out 20 Nm- 1254 Am Edt Fri Apr 10 2020
.gale warning in effect through this afternoon...
Overnight..W winds 20 to 25 kt, increasing to 25 to 30 kt late. Seas 4 to 7 ft. Slight chance of showers.
Fri..W winds 25 to 30 kt with gusts up to 45 kt. Seas 5 to 7 ft.
Fri night..NW winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 4 to 7 ft, subsiding to 3 to 5 ft after midnight.
Sat..NW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Seas 3 to 5 ft.
Sat night..NW winds 10 to 15 kt with gusts up to 20 kt, becoming ne 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less.
Sun..SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon.
Sun night..S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas around 3 ft, building to 4 to 6 ft after midnight. Chance of rain in the evening, then rain after midnight with vsby 1 to 3 nm.
Mon..S winds 20 to 25 kt. Seas 7 to 10 ft. Rain, mainly in the morning. Vsby 1 to 3 nm.
Mon night..W winds 15 to 20 kt. Seas 7 to 10 ft. Chance of rain in the evening.
Tue..W winds 10 to 15 kt. Seas 4 to 7 ft, subsiding to 3 to 5 ft in the afternoon. Chance of showers in the afternoon.
Tue night..W winds around 15 kt. Seas 3 to 5 ft in the evening.
ANZ300 1254 Am Edt Fri Apr 10 2020
Synopsis for the long island waters and new york harbor.. Low pressure will track up into the canadian maritimes into Friday, while high pressure over the mid section of the country builds east. The high moves across the waters Saturday night into Sunday morning. A complex low pressure system will approach Sunday night and move across on Monday.


7 Day Forecast for Marine Location Near Elmont, NY
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location: 40.7, -73.7     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 100555 AFDOKX

Area Forecast Discussion National Weather Service New York NY 155 AM EDT Fri Apr 10 2020

SYNOPSIS. High pressure will build from the west Friday through Saturday night, then move offshore on Sunday. A complex low pressure system will approach Sunday night and move across on Monday. A cold front will move across on Tuesday.

NEAR TERM /UNTIL 6 AM THIS MORNING/. A fast moving small area of showers went across northern NJ and the NYC metro the last hour and briefly mixed down some wind gusts up to 40 kt (46 mph). However, for the most part gusts will be mainly to around 20 kt for another couple of hours, before ramping back up to around 30 kt with another shot of cold advection as a mid level shortwave passes to the east.

Temperatures will drop to near normal levels tonight, with lows ranging from the 30s inland to the lower 40s in the New York City metro area.

SHORT TERM /6 AM THIS MORNING THROUGH 6 PM SATURDAY/. On Friday, on the back side of the low that is slowly moving into the Canadian Maritimes, a vort max/shortwaves will be in the vicinity, again giving the area a slight chance for showers, this time mainly across the Lower Hudson Valley and southern Connecticut.

The biggest concern on Friday will be the winds that develop as the pressure gradient tightens up. Strong westerly winds will gust 40-45 mph with sustained winds 25-30 mph. A wind advisory may be needed, but because of the uncertainty, did not issue one just yet, but may need to be issued with the overnight forecast.

Temperatures will be below normal on Friday, with highs in the upper 40s to lower 50s.

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/. High pressure will strengthen as it moves east Saturday night with the local pressure tendency in the region increasing Saturday night. The high will be moving offshore going into Sunday and will eventually give way to an approaching complex low pressure system approaching from the south and west. The progression of the system will have a warm front passage followed by a cold front passage Monday into Monday evening.

Dry weather will prevail Sunday into Sunday evening as the atmospheric column will have to sufficiently moisten before the commencement of rainfall ahead of this system. Rain becomes likely late Sunday night and continues through much of Monday. Heavy rain will be possible Monday morning with the bulk of the rainfall occurring Monday morning into early Monday afternoon. Rain tapers off Monday night.

Rain showers a possibility again on Tuesday into Tuesday night with another cold frontal passage. Models show possible stalling of the front offshore heading into Wednesday so another chance of rain showers is forecast Wednesday as well.

Temperatures on average are forecast to be a few degrees below normal Friday night through Saturday night, near normal Sunday, above normal Sunday night through Monday night, and closer to normal thereafter.

AVIATION /06Z FRIDAY THROUGH TUESDAY/. Low pressure will track away from the area today.

Mainly VFR through the TAF period. There could be a few brief periods of MVFR or lower conditions in scattered showers today. Coverage and probability are too low to include in the TAFs at this time.

Strong WNW winds are expected through the TAF period. Winds could pick up in speed after 08z, then increasing speeds after 14Z Fri. Peak gusts around 40 kt expected.

OUTLOOK FOR 06Z SATURDAY THROUGH TUESDAY. Friday night. VFR with WNW winds gradually diminishing to 15-20G25kt. Saturday. VFR. WNW winds 15G20-25kt. Sunday. VFR. Sunday night and Monday. MVFR to IFR in rain. S winds G20-30kt. Chance of LLWS. Tuesday. Cold frontal passage with chance of afternoon MVFR showers showers. W winds G15-20kt.

MARINE. Gale warning remains on all waters tonight through Friday.

There looks to be short respite for the first half of tonight before gales return to the waters during the early morning hours Friday. A shot of cold air in conjunction with deepening low pressure tracking from northern New England into the Canadian Maritimes Thursday night into Friday will allow gales to continue through Friday evening.

SCA gusts for all waters Saturday. Sub-SCA conditions Saturday night into Sunday evening as high pressure moves across the waters. SCA gusts return for all waters late Sunday night with gales on the ocean probable again Monday with rest of waters maintaining SCA gusts. SCA gusts linger into much of Monday night. Ocean seas forecast of 5 to 8 ft Friday night, 3 to 5 ft Saturday morning into early Saturday afternoon. Then below 5 ft ocean seas thereafter through Sunday evening. Ocean seas build back up to near 6 to 11 ft late Sunday night into early next week.

FIRE WEATHER. Showers today resulted in around a quarter to three quarters of an inch of rain. This should help limit fire growth potential on Friday despite strong winds and low afternoon RH. However, there is a possibility for lower dewpoints than forecast Friday and that would result in some min RH values getting close to or just below 30 percent. Therefore, the potential for favorable fire spread conditions is not totally out of the question on Friday. It will really depend on how fast the surface ground layer dries out.

With some drying out Saturday, could be a day of concern as there will be more potential for fire spread, with W winds still gusting 25 to 30 mph and minimum RH 25 to 30%.

HYDROLOGY. QPF of 1-2 inches Sunday night into Monday could also cause at least minor poor drainage flooding at that time.

TIDES/COASTAL FLOODING. The combination of spring tides and background tidal anomaly will have water levels exceeding minor flood thresholds for vulnerable locations along the south shore bays of western Long Island, and along NY/NJ harbor for high tide tonight. This all despite offshore flow tonight. Coastal flood advisory remains for the South Shore Bays (Southern Nassau and Southern Queens) and coastal flood statements are in effect for the Lower NY Harbor shorelines as well as Southern Suffolk County shorelines for high tides tonight. The advisory indicates where widespread minor coastal flooding is expected and the statement indicates where isolated minor coastal flooding is expected.

Only need around 1/4 to 1/2 ft to reach minor coastal flood benchmarks across some of the South Shore Bays of Long Island as well as some shorelines along Lower NY Harbor. Highest threat of minor coastal flooding is along the South Shore bays of Long Island, with water slow to exit through the inlets. Elsewhere, a negative surge will likely have water levels falling below minor flood thresholds. This is especially for shorelines bordering Long Island Sound which have high tide cycles overnight when enough offshore flow will have occurred to make for water levels falling below minor coastal flood benchmarks.

Some breaking waves likely of 4-6 ft tonight, which will likely cause beach erosion, but dune impacts should be minimal.

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 . None. NY . None. NJ . None. MARINE . Gale Warning until 6 PM EDT this evening for ANZ330-335-338- 340-345-350-353-355.

SYNOPSIS . JM/JP NEAR TERM . DW SHORT TERM . JP LONG TERM . CB/JM AVIATION . BC MARINE . JP FIRE WEATHER . HYDROLOGY . CB/Goodman/JP TIDES/COASTAL FLOODING . EQUIPMENT .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KPTN6 - 8516945 - Kings Point, NY 8 mi52 min NW 18 G 23 43°F 55°F993.7 hPa (-1.3)
44022 - Execution Rocks 13 mi52 min WSW 18 G 23 43°F 32°F35°F
BATN6 - 8518750 - The Battery, NY 17 mi52 min 42°F 49°F993.9 hPa (-1.0)
44040 - Western Long Island Sound 19 mi67 min WSW 19 G 25 44°F 2 ft33°F
ROBN4 - 8530973 - Robins Reef, NJ 20 mi52 min W 22 G 25 42°F 993.7 hPa (-1.2)
44065 - Entrance to New York Harbor 23 mi32 min W 25 G 31 43°F 994.1 hPa35°F
SDHN4 - 8531680 - Sandy Hook, NJ 23 mi52 min W 19 G 26 42°F 51°F994.7 hPa (-0.7)
BGNN4 - 8519483 - Bergen Point West Reach, NJ 24 mi52 min 42°F 50°F994.2 hPa (-0.8)
MHRN6 25 mi52 min W 16 G 21
44025 - LONG ISLAND 33 NM South of Islip, NY 42 mi62 min 27 G 37 44°F 46°F4 ft993.3 hPa (-1.0)
BRHC3 - 8467150 - Bridgeport, CT 43 mi52 min WNW 4.1 G 8.9 44°F 49°F991.4 hPa (-0.7)

Wind History for Kings Point, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New York, Kennedy International Airport, NY5 mi61 minW 17 G 2510.00 miOvercast42°F34°F73%994 hPa
New York, La Guardia Airport, NY11 mi61 minW 20 G 2510.00 miOvercast and Breezy43°F30°F60%993.4 hPa
New York City, Central Park, NY15 mi61 minVar 6 G 1410.00 miFair42°F30°F65%993.5 hPa
Farmingdale - Republic Airport, NY16 mi59 minW 1110.00 miPartly Cloudy43°F30°F60%992.8 hPa
Teterboro, Teterboro Airport, NJ22 mi61 minW 910.00 miFair41°F30°F67%993.2 hPa

Link to 5 minute data for KJFK

Wind History from JFK (wind in knots)
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Last 24hrS6S6SE3CalmSE6SE9S10SE12S12S10S18
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1 day agoSE3S3CalmS7W10N7N9N10N9N12NW10
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2 days agoNW9NW6NW6W5SW7SW7SW6NW6W63SW10SW9S15S18S14S15S14S10S12S10SW8S7SE5S4

Tide / Current Tables for East Rockaway, Long Island, New York
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East Rockaway
Click for Map
Fri -- 05:17 AM EDT     -0.81 feet Low Tide
Fri -- 06:23 AM EDT     Sunrise
Fri -- 08:13 AM EDT     Moonset
Fri -- 11:08 AM EDT     4.56 feet High Tide
Fri -- 05:29 PM EDT     -0.52 feet Low Tide
Fri -- 07:29 PM EDT     Sunset
Fri -- 10:52 PM EDT     Moonrise
Fri -- 11:34 PM EDT     5.15 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.73.62.20.9-0.2-0.8-0.60.41.93.24.14.64.33.52.31.20.2-0.4-0.40.41.83.24.45

Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
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Throg's Neck
Click for Map
Fri -- 02:08 AM EDT     -0.91 knots Max Ebb
Fri -- 05:00 AM EDT     0.00 knots Slack
Fri -- 06:23 AM EDT     Sunrise
Fri -- 08:13 AM EDT     Moonset
Fri -- 08:23 AM EDT     1.17 knots Max Flood
Fri -- 11:16 AM EDT     -0.00 knots Slack
Fri -- 02:35 PM EDT     -0.87 knots Max Ebb
Fri -- 05:26 PM EDT     0.00 knots Slack
Fri -- 07:29 PM EDT     Sunset
Fri -- 08:48 PM EDT     1.11 knots Max Flood
Fri -- 10:53 PM EDT     Moonrise
Fri -- 11:35 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.4-0.7-0.9-0.8-0.4-00.30.71.110.50.1-0.2-0.6-0.8-0.8-0.6-0.10.10.40.91.10.70.2

Weather Map
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wmap_A
GEOS Local Image of    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 (2,6,7,8)
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Ground Weather Radar Station Upton, NY
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Disclaimer:
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.