Wednesday, April1, 2020
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Marine Weather and Tides
Darien, CT

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 7:20PM Wednesday April 1, 2020 3:18 AM EDT (07:18 UTC) Moonrise 11:49AMMoonset 2:26AM Illumination 58% 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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ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 1216 Am Edt Wed Apr 1 2020
Overnight..NE winds 10 to 15 kt. Seas 1 ft or less.
Wed..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less.
Wed night..N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 ft or less.
Thu..NW winds around 15 kt with gusts up to 30 kt. Seas around 2 ft.
Thu night..N winds 15 to 20 kt with gusts up to 30 kt. Seas around 2 ft. Chance of rain.
Fri..N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft in the morning, then 1 ft or less.
Fri night..NE winds 10 to 15 kt. Seas 1 ft or less.
Sat..E winds 5 to 10 kt. Seas 1 ft or less.
Sat night..S winds 5 to 10 kt. Seas 1 ft or less.
Sun..S winds around 5 kt. Seas 1 ft or less.
Sun night..SW winds 5 to 10 kt, becoming W after midnight. Seas 1 ft or less, then around 2 ft after midnight.
ANZ300 1216 Am Edt Wed Apr 1 2020
Synopsis for the long island waters and new york harbor.. Deepening low pressure will emerge off the carolina coast tonight and then track 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 Darien, CT
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location: 41.05, -73.45     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 010427 AFDOKX

Area Forecast Discussion National Weather Service New York NY 1227 AM EDT Wed Apr 1 2020

SYNOPSIS. Deepening low pressure will emerge off the Carolina coast overnight, then track 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 THIS MORNING/. A few sprinkles have been around the area, well to the north of the low off the North Carolina coast, mainly in the vicinity of the NYC metro area and northwest. Added a slight chance of sprinkles through the overnight. Also, increased cloud cover as strato cu remains in place.

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.

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

SHORT TERM /6 AM THIS 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 /03Z 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 03Z THURSDAY THROUGH SUNDAY. Thursday-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 . MET/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
44040 - Western Long Island Sound 9 mi79 min E 12 G 18 41°F 1 ft34°F
BRHC3 - 8467150 - Bridgeport, CT 17 mi49 min NE 4.1 G 5.1 39°F 45°F1012.2 hPa
44022 - Execution Rocks 19 mi49 min E 9.7 G 14 41°F 32°F36°F
KPTN6 - 8516945 - Kings Point, NY 23 mi49 min SE 1.9 G 6 40°F 51°F1012.8 hPa
NWHC3 - 8465705 - New Haven, CT 33 mi49 min NNE 1 G 6 39°F 45°F1012 hPa
BATN6 - 8518750 - The Battery, NY 38 mi49 min 41°F 46°F1011.6 hPa
ROBN4 - 8530973 - Robins Reef, NJ 42 mi49 min E 9.9 G 9.9 41°F 1011.6 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 47 mi55 min 41°F 47°F1011.8 hPa
MHRN6 47 mi49 min ENE 8 G 9.9
44065 - Entrance to New York Harbor 49 mi29 min ENE 16 G 19 41°F 5 ft1010.7 hPa34°F

Wind History for Bridgeport, CT
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
White Plains - Westchester County Airport, NY14 mi23 minE 510.00 miMostly Cloudy38°F30°F76%1011.6 hPa
Bridgeport, Sikorsky Memorial Airport, CT19 mi27 minNNE 610.00 miMostly Cloudy40°F32°F73%1012.1 hPa
Danbury, Danbury Municipal Airport, CT22 mi26 minE 310.00 miOvercast37°F32°F82%1012.4 hPa
Farmingdale - Republic Airport, NY22 mi26 minNE 510.00 miMostly Cloudy39°F30°F73%1011.6 hPa

Link to 5 minute data for KHPN

Wind History from HPN (wind in knots)
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Last 24hrNE6NE5NE8E6E6NE74SE4CalmSE5Calm3SE5SE6SE6SE3--NE4SE7SE5SE7SE4E6E5
1 day agoN4E4E5N5NE4NE5SE4CalmSE6S4SE5E5SE8E4SE5E4E7E3CalmSE5SE6SE6E4NE7
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4NE5NE6N9N5NE7

Tide / Current Tables for Greens Ledge, Connecticut
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Greens Ledge
Click for Map
Wed -- 02:26 AM EDT     Moonset
Wed -- 05:23 AM EDT     7.15 feet High Tide
Wed -- 06:21 AM EDT     First Quarter
Wed -- 06:36 AM EDT     Sunrise
Wed -- 11:49 AM EDT     Moonrise
Wed -- 11:56 AM EDT     0.89 feet Low Tide
Wed -- 06:04 PM EDT     6.53 feet High Tide
Wed -- 07:19 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.62.53.95.46.57.176.24.83.321.20.91.32.43.95.26.16.56.25.23.92.71.8

Tide / Current Tables for Saugatuck River entrance, Connecticut
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Saugatuck River entrance
Click for Map
Wed -- 02:26 AM EDT     Moonset
Wed -- 05:23 AM EDT     6.95 feet High Tide
Wed -- 06:21 AM EDT     First Quarter
Wed -- 06:35 AM EDT     Sunrise
Wed -- 11:48 AM EDT     Moonrise
Wed -- 11:58 AM EDT     0.86 feet Low Tide
Wed -- 06:04 PM EDT     6.35 feet High Tide
Wed -- 07:19 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.52.43.85.26.36.96.864.63.221.20.91.32.33.7566.365.13.82.61.8

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 (3,6,7,8)
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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.