Tuesday, March31, 2020
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Marine Weather and Tides
Ocean Beach, 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 6:34AMSunset 7:17PM Tuesday March 31, 2020 9:18 PM EDT (01:18 UTC) Moonrise 10:56AMMoonset 1:22AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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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ANZ370 1154 pm edt Sun mar 29 2020 a marine weather statement has been issued for the following areas... The open waters 20 to 40 nm south of moriches inlet to Montauk point ny... At 1154 pm edt, doppler radar indicated strong Thunderstorms, capable of producing winds to around 30 knots. These Thunderstorms were located along a line extending from 25 nm southeast of dering harbor to 64 nm southeast of westhampton beach, moving east at 50 knots. Precautionary/preparedness actions... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4034 7178 4017 7231 4034 7241 4056 7169 4042 7157
ANZ300 729 Pm Edt Tue Mar 31 2020
Synopsis for the long island waters and new york harbor.. Deepening low pressure will emerge off the carolina coast tonight and then tracks well south and east of the area through Thursday night. The low become will become nearly stationary across the western atlantic Thursday on Friday, before finally moving out to the east Friday night. Weak high pressure will build in on Saturday and settle over the region on Sunday.


7 Day Forecast for Marine Location Near Ocean Beach, NY
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location: 40, -72.73     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 312358 AFDOKX

Area Forecast Discussion National Weather Service New York NY 758 PM EDT Tue Mar 31 2020

SYNOPSIS. Deepening low pressure will emerge off the Carolina coast tonight and then tracks well south and east of the area through Thursday night. High pressure will remain to the north and west of area during this time. The low become will become nearly stationary across the western Atlantic on Friday, before finally moving out to the east Friday night. Weak high pressure will build in on Saturday and settle over the region on Sunday. A weak cold front will approach Sunday night. Weak high pressure will follow on Monday, with low pressure passing south of the region on Tuesday.

NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/. 00Z Update: Slightly bumped up temperatures to match current obs. Low level cloud cover appears to be holding on slightly longer than expected but should continue to scatter out overnight.

Previous discussion below

A springlike blocking pattern will feature an upper ridge amplifying just east of the Mississippi River Valley, with a closed upper low over the Northeast re-consolidating offshore with southern branch energy moving off the Mid Atlantic coast tonight. The latter of which will result in a rapidly deepening surface low moving off the Carolina coast tonight. To the north, high pressure will weaken.

Winds will back around from the east to northeast overnight with a gradually strengthening pressure gradient. In addition, there will likely be some gradual or partial clearing from east to west overnight as drier air is pulled into the region.

Lows will be near seasonable levels and possibly lower depending upon how much clearing is achieved.

SHORT TERM /6 AM WEDNESDAY MORNING THROUGH THURSDAY NIGHT/. Rapidly deepening low pressure passes well south and east of the area through Thursday night. At the same time, high pressure will remain nearly stationary across the Ohio and Tennessee Valleys. This will maintain a northerly gradient wind across the area through the time period which ramps up quite a bit late Wednesday night into Thursday with gusts up to 30 mph possible. Skies will clear during the day Wednesday with the possible exception of far eastern LI Long Island and southeast CT, which will be on the western periphery of the offshore low. Clouds will then increase on Thursday as some moisture wraps back in off the Atlantic as the offshore low retrogrades back to the west Thursday into Thursday night. This will increase chances of rain from east to west during this time. The area at this time will be on the western edge of the storm, so any rainfall amounts look to be light.

Temperatures through the period will remain near seasonable levels with lows in the 30s at night and highs in the lower to mid 50s.

LONG TERM /FRIDAY THROUGH TUESDAY/. Low pressure will stall well offshore and well east of the region on Friday. The low actually is progged by much of the global guidance to cut off and do a loop over the Western Atlantic. As it does so it may swing some showers across the region, especially across eastern sections during the day on Friday. It will then eject further east out into the Atlantic for Friday night into Saturday. Due to the western fringes of the upper level system being over the region and some disturbances progged by some of the global guidance to slide down the eastern side of an approaching upper level ridge, a few showers cannot be ruled out on Saturday. The low levels will be rather dry on a northerly flow, but slight chance POPs seem prudent for much of the area during the day on Saturday, even though much of the day should be dry.

As ridging builds in Saturday night into Sunday clouds should decrease with a return to more in the way of sunshine on Sunday. A prevailing southerly flow should have western parts of the region climb above normal with highs near 60, with noticeably cooler temperatures further east and along the coast due to an onshore wind. The winds are then expected to not be onshore as much on Monday with high pressure attempting to build in from the north. Some of the global guidance is suggesting that a few spokes of upper level energy cloud yield a few pop up showers. Much of the day should be dry as ridging overall will fight to win through, especially by late in the day and into Monday evening. Temperatures on Monday should be warmer overall across the region, with middle 60s more likely inland, with somewhat cooler readings closer to the coast. On Tuesday there appears to be good agreement that another low pressure system and warm front will start to approach. Most of the longer range guidance has this system moving harmlessly to our south and out to seas at this time, thus have kept Tuesday primarily dry with temperatures above normal.

AVIATION /00Z WEDNESDAY THROUGH SUNDAY/. A deepening low east of Nantucket slowly drifts away east tonight. A second low moves off the North Carolina coast throughout the overnight hours.

MVFR clouds will likely remain broken tonight around 2500-4000ft with a mid level cloud deck above.

Southeast winds should become more easterly tonight then northeasterly by morning. The winds may gust to around 20 kt or so for later Wednesday morning into the afternoon but confidence is low at this time.

OUTLOOK FOR 00Z THURSDAY THROUGH SUNDAY. Wednesday-Friday. VFR. NW G15-20kt Thursday and Friday. Saturday. VFR. Sunday. VFR.

MARINE. A tight northerly gradient over the next several days will provide SCA conditions across the waters. A strong coastal low will emerge off the Carolina coast late tonight and continue to deepen as it approaches the 60th parallel, briefly becoming stationary late Thursday night into Friday. There is the potential for a period of gales late Thursday as the gradient tightens up between the offshore low and high to the west.

On Friday,seas will build to about 5 to 6 feet across the western ocean, and 7 to 10 feet across the east ocean. Small craft wind gusts will also accompany the high seas over the eastern ocean waters through Friday night. By Saturday the storm will begin to move further out into the Atlantic, with small craft conditions continuing due to elevated seas along with gradually diminishing winds.

HYDROLOGY. No hydrologic impacts are expected.

TIDES/COASTAL FLOODING. For the Friday and Friday night high tide cycles minor coastal flood benchmarks may be approached for the south shore back bays due to an increasing easterly swell.

HYDROLOGY. No hydrologic impacts are expected.

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 . Small Craft Advisory until 6 PM EDT Thursday for ANZ350-353- 355.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44066 27 mi28 min 44°F7 ft1014.9 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 29 mi28 min 14 G 16 42°F 45°F6 ft1014.4 hPa (-0.4)
44065 - Entrance to New York Harbor 58 mi28 min ESE 7.8 G 12 42°F 5 ft1014.8 hPa35°F

Wind History for Sandy Hook, NJ
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Shirley, Brookhaven Airport, NY57 mi22 minE 310.00 miOvercast41°F30°F65%1015.1 hPa

Link to 5 minute data for KHWV

Wind History from HWV (wind in knots)
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Last 24hrCalmCalm434636Calm334N74443SE4SE4NE5SE8SE5--E3
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N355N6N743N5NW54N93N443Calm
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Tide / Current Tables for Point o' Woods, Long Island, New York
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Point o' Woods
Click for Map
Tue -- 01:26 AM EDT     Moonset
Tue -- 03:10 AM EDT     0.70 feet High Tide
Tue -- 06:36 AM EDT     Sunrise
Tue -- 10:01 AM EDT     0.13 feet Low Tide
Tue -- 10:55 AM EDT     Moonrise
Tue -- 04:02 PM EDT     0.58 feet High Tide
Tue -- 07:16 PM EDT     Sunset
Tue -- 09:51 PM EDT     0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.60.70.70.70.60.50.30.20.10.10.20.20.40.50.60.60.60.50.30.20.20.10.2

Tide / Current Tables for Fire Island Radiobeacon, Long Island, New York
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Fire Island Radiobeacon
Click for Map
Tue -- 01:26 AM EDT     Moonset
Tue -- 01:29 AM EDT     0.70 feet High Tide
Tue -- 06:37 AM EDT     Sunrise
Tue -- 08:48 AM EDT     0.13 feet Low Tide
Tue -- 10:56 AM EDT     Moonrise
Tue -- 02:21 PM EDT     0.58 feet High Tide
Tue -- 07:17 PM EDT     Sunset
Tue -- 08:38 PM EDT     0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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wmap_A
GEOS Local Image of Mid-Atlantic    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New York City/Upton, NY (21,6,7,8)
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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.