Sunday, July12, 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 5:31AMSunset 8:28PM Sunday July 12, 2020 3:44 PM EDT (19:44 UTC) Moonrise 12:23AMMoonset 12:50PM Illumination 51% Phase: Third Quarter Moon; Moon at 22 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- 329 Pm Edt Sun Jul 12 2020
This afternoon..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less.
Tonight..SW winds 5 to 10 kt. Seas 1 ft or less. Scattered showers and tstms after midnight.
Mon..S winds around 5 kt. Seas 1 ft or less. Chance of showers and tstms in the morning, then showers and tstms likely in the afternoon.
Mon night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less. Showers likely with chance of tstms in the evening.
Tue..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue night..N winds 5 to 10 kt. Seas 1 ft or less.
Wed..E winds around 5 kt. Seas 1 ft or less.
Wed night..SE winds 5 to 10 kt. Seas 1 ft or less.
Thu..SE winds 5 to 10 kt. Seas 1 ft or less.
Thu night..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms. Winds and seas higher in and near tstms.
ANZ300 329 Pm Edt Sun Jul 12 2020
Synopsis for the long island waters and new york harbor.. A weak front lingers offshore through Monday. High pressure builds in for Tuesday and Wednesday, then offshore on Thursday. The next frontal boundary approaches the region on Friday.


7 Day Forecast for Marine Location Near Darien CDP, 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 121814 AFDOKX

Area Forecast Discussion National Weather Service New York NY 214 PM EDT Sun Jul 12 2020

SYNOPSIS. A weak front lingers offshore through Monday. High pressure builds in for Tuesday and Wednesday, then offshore on Thursday. The next frontal boundary approaches the region on Friday, then stalls across the area into the weekend.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Minor update to increase cloud cover as scattered clouds are developing across the interior and Long Island at this time. Otherwise, the forecast is generally on track with temperatures approaching the low to mid 80s from northeast NJ and NYC on east, with slightly cooler conditions across the lower Hudson Valley and coastal CT where increased cloud cover and/or onshore flow is moderating.

An upper trough will remain over the region today, but with the area in between shortwaves, expecting dry conditions. With southwest flow in place at the surface, daytime highs will rise into the upper 80s to lower 90s. Better mixing will result in noticeably lower dewpoints, leading to less humid conditions than we've experienced the past few days.

There is a high risk of rip current development at Atlantic Ocean beaches today due to continued long period southerly swell.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/. Clouds will increase tonight as a shortwave swings east into the Mid Atlantic. As it does so, a weak surface low develops along the remnant frontal boundary located just offshore. While at least the first half of tonight will remain dry, shower and thunderstorm chances will begin to increase after midnight and continue through much of the day on Monday as this feature lifts north.

With precipitable water values remaining 1.5-2 inches, any showers and thunderstorms that develop during the day on Monday will be capable of producing heavy rainfall. While overall annual rainfall totals remain below average, parts of the area have seen quite a bit of rain over the last two weeks. This is especially true for New York City and points west, which received the bulk of the rainfall associated with Tropical Storm Fay. With this in mind, at least some potential exists for flash flooding on Monday, especially in any areas that see training cells. In addition to the flash flood potential, a few storms could be strong to severe.

More humid conditions will return tonight into Monday, with overnight lows ranging from the upper 60s to lower 70s and daytime highs rising into the mid to perhaps upper 80s as dewpoints rise back into the upper 60s to around 70.

A high risk of rip current development is expected at Atlantic Ocean beaches again on Monday as southerly swell is slow to diminish.

LONG TERM /MONDAY NIGHT THROUGH SUNDAY/. Any lingering precipitation comes to an end Monday night. On Tuesday, an upper level shortwave pivots through New England, which could spark a few showers and thunderstorms across the Lower Hudson Valley and southern Connecticut, although the bulk of the precipitation should remain north of the region.

Wednesday and Thursday are dominated by a ridge building into the Northeast. The ridge flattens somewhat Friday into Saturday but there are some more model differences here with varying amplifications of 500mb height. At the surface, more of a Bermuda high begins to set up. This will mark a return of warm and humid conditions. Forecast max heat indices increase slightly during the period from mid to upper 80s to more in the low to mid 90s. Dry weather forecast on Wednesday and Wednesday night but chances of showers and thunderstorms will return thereafter.

AVIATION /18Z SUNDAY THROUGH FRIDAY/. Weak high pressure across the region will eventually give way to approaching low pressure tonight into Monday.

VFR through today and through much of tonight. However, chances for MVFR will increase late tonight into Monday with a chance of rain showers. Due to uncertainty in exact timing, left as VCSH in TAFs after 06-07Z Monday. This initial timing could be a few hours off.

W-SW flow 10-15 kt this afternoon with gusts near 20 kt. Peak gusts late this afternoon for a few coastal terminals could reach up to 25 kt. Gusts subside this evening with winds overall becoming more SW and decreasing to near 5-8 kt. Wind direction becomes variable late tonight into Monday before a more S-SW flow 5-10 kt returns Monday late morning into afternoon. Thunderstorms are a possibility as well late tonight into Monday but at this point, probabilities are too low to include in TAFs.

OUTLOOK FOR 18Z MONDAY THROUGH FRIDAY. Monday. Showers and thunderstorms likely afternoon into early evening before diminishing thereafter from west to east. MVFR to locally IFR conditions possible, otherwise VFR. S-SW winds 7-12 kt becoming W-NW going into the evening. Tuesday and Wednesday. Mainly VFR. Thursday. Mainly VFR. A chance of SHRA/TSRA with MVFR or lower conditions possible in the afternoon and at night. Friday. A chance of SHRA/TSRA with MVFR or lower conditions possible.

MARINE. A Small Craft Advisory continues on the ocean waters today due to seas around 5 feet in lingering southerly swell. While seas likely fall below 5 feet west of Fire Island Inlet on Monday, farther east conditions will continue to remain elevated through Monday night before seas gradually fall below 5 feet during the day on Tuesday. After gusts to 20-25 kt on the ocean today, winds will generally remain below 20 kt on all waters through mid week.

HYDROLOGY. Showers and thunderstorms on Monday could result in flash flooding, especially across northeast New Jersey, where flash flood guidance remains less than one inch/hour.

No significant widespread rainfall is expected Tuesday through Saturday.

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 . High Rip Current Risk until 9 PM EDT this evening for NYZ075- 080-081-178-179. NJ . None. MARINE . Small Craft Advisory until 8 AM EDT Monday for ANZ350-353-355.

SYNOPSIS . FEB/DJ NEAR TERM . FEB/DBR SHORT TERM . FEB LONG TERM . FEB/DJ/JM AVIATION . JM MARINE . FEB/DJ/JM HYDROLOGY . FEB EQUIPMENT .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44040 - Western Long Island Sound 9 mi75 min SW 3.9 G 5.8 80°F 1 ft69°F
BRHC3 - 8467150 - Bridgeport, CT 17 mi57 min SSW 9.9 G 14 81°F 77°F1005.3 hPa
44022 - Execution Rocks 19 mi75 min W 7.8 G 12 82°F 67°F
KPTN6 - 8516945 - Kings Point, NY 23 mi57 min NW 6 G 8.9 83°F 1007 hPa
NWHC3 - 8465705 - New Haven, CT 33 mi57 min SW 12 G 15 79°F 79°F1005.2 hPa
BATN6 - 8518750 - The Battery, NY 38 mi57 min 84°F 76°F1006.6 hPa
ROBN4 - 8530973 - Robins Reef, NJ 42 mi57 min W 14 G 20 86°F 1006.4 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 47 mi57 min 87°F 78°F1006.6 hPa
MHRN6 47 mi57 min SW 16 G 19
44065 - Entrance to New York Harbor 49 mi45 min SSW 7.8 G 12 1006.3 hPa (-0.7)

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
White Plains - Westchester County Airport, NY14 mi49 minW 310.00 miMostly Cloudy84°F63°F49%1005.8 hPa
Bridgeport, Sikorsky Memorial Airport, CT19 mi53 minSSW 1310.00 miPartly Cloudy86°F66°F51%1005.8 hPa
Danbury, Danbury Municipal Airport, CT22 mi52 minWSW 910.00 miA Few Clouds83°F64°F55%1006.3 hPa
Farmingdale - Republic Airport, NY22 mi52 minSW 1010.00 miMostly Cloudy89°F63°F42%1006.1 hPa

Link to 5 minute data for KHPN

Wind History from HPN (wind in knots)
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Last 24hrSE8SE11S12
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4CalmCalmCalm3W6W6SW4W6SW5W6W9W4W7W11NW11W9W65W3
1 day agoE16
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S8SE8CalmCalmE3E4E3E4E3E4E4NE6NE4E4E5E7E8
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Tide / Current Tables for Greens Ledge, Connecticut
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Greens Ledge
Click for Map
Sun -- 12:23 AM EDT     Moonrise
Sun -- 05:04 AM EDT     6.70 feet High Tide
Sun -- 05:32 AM EDT     Sunrise
Sun -- 11:21 AM EDT     1.15 feet Low Tide
Sun -- 12:50 PM EDT     Moonset
Sun -- 05:33 PM EDT     7.12 feet High Tide
Sun -- 07:31 PM EDT     Last Quarter
Sun -- 08:26 PM EDT     Sunset
Sun -- 11:57 PM EDT     1.35 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.62.645.36.36.76.45.44.12.91.81.21.32.23.656.2776.35.13.82.61.7

Tide / Current Tables for Saugatuck River entrance, Connecticut
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Saugatuck River entrance
Click for Map
Sun -- 12:22 AM EDT     Moonrise
Sun -- 05:04 AM EDT     6.51 feet High Tide
Sun -- 05:32 AM EDT     Sunrise
Sun -- 11:23 AM EDT     1.11 feet Low Tide
Sun -- 12:50 PM EDT     Moonset
Sun -- 05:33 PM EDT     6.92 feet High Tide
Sun -- 07:31 PM EDT     Last Quarter
Sun -- 08:25 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.52.53.85.16.16.56.25.242.81.81.21.32.13.44.866.86.86.253.72.61.7

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 (15,3,4,5)
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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.