Friday, October30, 2020
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Marine Weather and Tides
Cornwall-on-Hudson, NY

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:24AMSunset 5:54PM Friday October 30, 2020 11:34 AM EDT (15:34 UTC) Moonrise 5:48PMMoonset 6:15AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 939 Am Edt Fri Oct 30 2020
.gale warning in effect until 2 pm edt this afternoon...
Today..N winds 20 to 25 kt, diminishing to 10 to 15 kt. Seas 2 to 4 ft. Light sleet late this morning. Rain late this morning and early afternoon, then chance of rain late. Vsby 1 to 3 nm this afternoon.
Tonight..N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft.
Sat..N winds 5 to 10 kt, becoming E in the afternoon. Seas 1 ft or less.
Sat night..S winds 5 to 10 kt. Seas 1 ft or less.
Sun..SW winds 5 to 10 kt, increasing to 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. Chance of rain in the afternoon.
Sun night..W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas around 2 ft. Rain likely in the evening.
Mon..NW winds 15 to 20 kt. Seas 2 to 3 ft.
Mon night..W winds 15 to 20 kt. Seas 2 to 3 ft.
Tue..W winds 10 to 15 kt, becoming nw 5 to 10 kt in the afternoon. Seas around 2 ft in the morning, then 1 ft or less.
Tue night..NW winds around 5 kt, becoming sw after midnight. Seas 1 ft or less.
ANZ300 939 Am Edt Fri Oct 30 2020
Synopsis for the long island waters and new york harbor.. Low pressure moves off to the east today. Strong high pressure builds in tonight and settles over the waters on Saturday. A cold front then moves through Sunday evening, followed by a couple of surface troughs into Monday and Monday night. High pressure then builds in on Tuesday and remains in control through the middle of the week.


7 Day Forecast for Marine Location Near Cornwall-on-Hudson, NY
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location: 41.46, -73.99     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 301350 AFDOKX

Area Forecast Discussion National Weather Service New York NY 950 AM EDT Fri Oct 30 2020

SYNOPSIS. Low pressure moves off to the east today. Strong high pressure builds in tonight and settles over the area on Saturday. A cold front then moves through Sunday evening, followed by a couple of surface troughs into Monday and Monday night. High pressure then builds in on Tuesday and remains in control through the middle of the week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Mixed sleet and rain was being reported along the Connecticut coast and south across Long Island and portions of metropolitan New York City. Sounding indicating the chances of mixed sleet and rain will continue through the morning. Updated for precipitation type, and for current temperatures and dew points, as colder air was filtering down across Connecticut.

Light to potentially moderate rainfall, mixed with sleet at times, continues this morning associated with low pressure south of Long Island, and tracking quickly to the east. This low is in response to vort max at 500 mb which has led to cyclogenesis. The trough is progressive, thus the steadier precipitation moves east-northeast throughout this morning. The steadier rain based on trends will fall across the southeastern half of the area. Also colder air has filtered down from the north. This yields some wet snow across much of the northern half of the CWA. The higher elevations could get a light accumulation of up to an inch or so, mainly on the grassy surfaces due to a relatively warm ground. Forecast soundings indicate above freezing temperatures from the surface to about 300 to 500 feet across these northern locations, except in some of the higher elevations. Thus overall temperatures right along the ground should remain above freezing, especially where elevation does not play a role.

During this afternoon as the system continues to pull away drier air moves in with clearing skies taking shape for the late afternoon and into the early evening. A northerly wind will be gusting throughout the day making it feel unseasonably chilly with gusts of 20 to 30 mph across much of the area.

SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY NIGHT/. During tonight the coldest air of the fall season thus far moves in. A hard freeze is expected across northern most sections as freeze warning is in effect late tonight for sub freezing temperatures. Towards daybreak the coldest interior sections should get well down into the 20s, otherwise at or just below freezing temperatures are anticipated across the more southern portions of the freeze warning. As high pressure continues to build in tonight the winds will diminish, and more noticeably so after midnight. On Saturday with high pressure over the region it will be sunny, but rather cool. Temperatures will continue to average well below normal with daytime highs likely not getting out of the 40s, although late in the day the NYC metro will flirt with 50.

During Saturday night the high will shift offshore resulting in a return flow out of the south and southeast. This will bring in some lower level moisture later at night, especially further southeast across the area. Therefore more clouds can be expected, with the slight chance of a little light rain or sprinkles across southeastern sections. Saturday night will begin rather chilly, but the return flow will bring in milder air off the ocean. Temperatures will likely begin to rise before daybreak, especially along the coast.

LONG TERM /SUNDAY THROUGH THURSDAY/. A return southerly flow in response to high pressure centered to our east will bring increasing moisture to the region. Isentropic lift combines with this moisture for low chances of light rain over eastern LI and SE CT after midnight and into Sunday morning. Thereafter, a cold front approaches from the west. The entire forecast area will have a chance of showers before the day is done. Better chances of rain will occur during Sunday evening with the cold front moving through. Breezy conditions develop late in the day, and become more gusty during the night as cold air advection strengthens behind the front. High temperatures on Sunday will be near normal.

Gusty NW flow for Monday with a surface trough and upper trough axis shifting through early. Perhaps a few flurries for western Orange County in the morning. High temperatures about 10-15 degrees below normal. Another surface trough in association with clipper-type low passing to the north brings the chance of snow showers over SE CT Monday night.

High pressure then builds in on Tuesday and moves offshore Tuesday night. Highs Tuesday remaining well below normal. The air mass then moderates for Wednesday and Thursday with a SW flow. Both days are shaping up to be mostly sunny with temperatures closer to normal.

AVIATION /14Z FRIDAY THROUGH TUESDAY/. Low pressure passes to the south and east of the terminals today, with strong high pressure building in tonight through Saturday morning.

Mainly MVFR this morning with occasional IFR conditions. Currently experiencing light snow at KSWF, KBDR, and KGON, with a mixture of rain and snow at KHPN. Minor accumulations possible, but unlikely on runways due to a warm ground and temperatures above freezing. Sleet may mix in briefly at other terminals with rain being the primary precipitation type. VFR conditions return late this afternoon into early this evening.

NNE winds will be strongest at the coast at 15 to 20 kt with G25-30 kt. Winds will then gradually diminish from late morning into the afternoon.

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

Occasional IFR conditions this morning. A few wet snow flakes or sleet pellets could mix in late this morning. No accumulation.

OUTLOOK FOR 12Z SATURDAY THROUGH MONDAY. Sat..VFR. Sun. MVFR and -shra possible with SW winds near 15 kt with gusts 25-30 kt. Mon. Mainly VFR. NW winds 15-25kt with gusts 30-35kt.

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

MARINE. Gales conditions are expected for much of today, except for the Harbor where small craft advisories are in effect. Gale conditions will then transition to small craft advisories from west to east into this afternoon. This is when some of the higher gusts will subside. Seas will range from 6 to 11 ft initially, then start to gradually come down during this afternoon. For early this evening small craft wind gusts may linger for the eastern ocean for a few hours before the winds subside further. The seas will continue to gradually lower, but small craft seas will linger into early Saturday morning. High pressure builds over the waters during tonight into Saturday morning resulting in a relaxing pressure gradient, and thus a diminishing wind out of the north. By Saturday afternoon seas should fall below SCA criteria.

High pressure will then move offshore Saturday night as a return flow out of the south gets initiated. During the day on Sunday the likelihood of small craft conditions will increase from south to north across the waters on an increasing south to southwest flow in advance of an approaching cold front. By the afternoon a period of small craft conditions will be more likely for the non-ocean waters. During early Sunday night the cold front will move through and the winds will switch around to the west and northwest with small craft conditions on all waters. A period of gale force wind gusts are possible on the ocean waters on Monday. Small craft conditions are likely to continue through Monday night on a west to northwest wind.

HYDROLOGY. No hydrologic impacts are anticipated through the forecast period.

TIDES/COASTAL FLOODING. Coastal flood advisories remain up across Lower NY Harbor, the south shore back bays of Queens, Nassau and SW Suffolk, the remaining shoreline of Suffolk and the shorelines of Fairfield and Westchester along western Long Island.

Widespread minor flooding is forecast as strong NE flow continues this morning, with water levels already elevated due to the full moon on Halloween. Localized moderate flooding is still a possibility in southern Nassau and nearby SW Suffolk, possibly also in far western Staten Island near Tottenville and the Outerbridge Crossing.

Total tide departures should range from about 1.5-2 ft in most places, to locally 2.5-3 ft in western Peconic Bay, the south shore back bays of Nassau and SW Suffolk, and far western Raritan Bay.

Elevated seas should also cause beach erosion along the oceanfront, perhaps localized washovers on the east end of Long Island. Wave action may also enhance coastal flood impacts across the north shore of Long Island, the north shore of the barrier islands, and the north shore of the south fork.

Localized minor coastal flooding is again possible tonight with high tide along the south shore back bays of Nassau and far SW Suffolk.

OKX WATCHES/WARNINGS/ADVISORIES. CT . Freeze Warning from 10 PM this evening to 10 AM EDT Saturday for CTZ005>007-011-012. Freeze Warning from 2 AM to 10 AM EDT Saturday for CTZ009-010. Coastal Flood Advisory until 2 PM EDT this afternoon for CTZ009. NY . Freeze Warning from 10 PM this evening to 10 AM EDT Saturday for NYZ068-079-081. Coastal Flood Advisory until 2 PM EDT this afternoon for NYZ079-081. Freeze Warning from 2 AM to 10 AM EDT Saturday for NYZ069>071- 078-080. Coastal Flood Advisory until 11 AM EDT this morning for NYZ074- 075-178-179. Coastal Flood Advisory until 2 PM EDT this afternoon for NYZ071. Coastal Flood Advisory until 2 PM EDT this afternoon for NYZ080. NJ . Freeze Warning from 2 AM to 10 AM EDT Saturday for NJZ002-004- 103>108. Coastal Flood Advisory until 11 AM EDT this morning for NJZ006- 106-108. MARINE . Gale Warning until 2 PM EDT this afternoon for ANZ330-335-340- 345-353-355. Small Craft Advisory until 2 PM EDT this afternoon for ANZ338. Gale Warning until 4 PM EDT this afternoon for ANZ350.

SYNOPSIS . JE NEAR TERM . JE/MET SHORT TERM . JE LONG TERM . JC AVIATION . MW MARINE . JE/MET HYDROLOGY . JE TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NPXN6 26 mi65 min N 4.1 34°F 1013 hPa32°F
TKPN6 38 mi47 min N 16 G 21 37°F 56°F1014.1 hPa36°F
ANMN6 - Hudson River Reserve, NY 39 mi65 min S 1 33°F 1013 hPa32°F
44022 - Execution Rocks 42 mi50 min ENE 18 G 18 42°F 42°F
KPTN6 - 8516945 - Kings Point, NY 46 mi47 min ENE 13 G 25 40°F 1012 hPa
BRHC3 - 8467150 - Bridgeport, CT 47 mi47 min NNE 9.9 G 17 35°F 61°F1010.8 hPa

Wind History for Kings Point, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newburgh / Stewart, NY7 mi50 minNNE 52.00 miLight Snow Fog/Mist34°F32°F93%1012.5 hPa
Poughkeepsie, Dutchess County Airport, NY14 mi42 minN 61.00 miLight Snow Fog/Mist34°F30°F89%1012.9 hPa
Montgomery, Orange County Airport, NY15 mi41 minNNE 89.00 miLight Snow34°F33°F97%1012.9 hPa

Link to 5 minute data for KSWF

Wind History from SWF (wind in knots)
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1 day agoCalmCalmCalmCalmW6W7W5CalmCalmCalmCalmCalmW7W6W5W6CalmCalm5E5E5E6E6E6
2 days ago4444--CalmCalmCalmCalmCalmCalmCalmS5S5S4----CalmE4NE5NE6NE5NE5N5

Tide / Current Tables for Newburgh, Hudson River, New York
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Newburgh
Click for Map
Fri -- 06:08 AM EDT     0.08 feet Low Tide
Fri -- 06:15 AM EDT     Moonset
Fri -- 07:26 AM EDT     Sunrise
Fri -- 12:02 PM EDT     3.20 feet High Tide
Fri -- 05:47 PM EDT     Moonrise
Fri -- 05:52 PM EDT     Sunset
Fri -- 06:38 PM EDT     0.18 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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32.72.11.40.90.40.10.311.82.533.232.51.81.20.70.30.20.71.42.12.7

Tide / Current Tables for Haverstraw (Hudson River), New York Current
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Haverstraw (Hudson River)
Click for Map
Fri -- 12:21 AM EDT     -0.00 knots Slack
Fri -- 03:58 AM EDT     -1.25 knots Max Ebb
Fri -- 06:15 AM EDT     Moonset
Fri -- 07:25 AM EDT     Sunrise
Fri -- 07:35 AM EDT     0.00 knots Slack
Fri -- 09:59 AM EDT     0.91 knots Max Flood
Fri -- 12:49 PM EDT     -0.00 knots Slack
Fri -- 04:27 PM EDT     -1.31 knots Max Ebb
Fri -- 05:47 PM EDT     Moonrise
Fri -- 05:53 PM EDT     Sunset
Fri -- 08:08 PM EDT     0.00 knots Slack
Fri -- 10:17 PM EDT     0.78 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.2-0.3-0.8-1.1-1.3-1.1-0.9-0.40.30.80.90.80.5-0.1-0.6-1-1.3-1.3-1.1-0.7-0.10.50.80.7

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
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.