Thursday, September16, 2021
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Marine Weather and Tides
New London, CT

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:28AMSunset 6:57PM Thursday September 16, 2021 2:24 PM EDT (18:24 UTC) Moonrise 5:02PMMoonset 1:17AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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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ANZ332 Long Island Sound East Of The Mouth Of The Connecticut River- 125 Pm Edt Thu Sep 16 2021
This afternoon..E winds 10 to 15 kt. Seas 1 ft or less. Isolated tstms. Scattered showers.
Tonight..E winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less, then 2 to 3 ft after midnight. Chance of showers.
Fri..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers.
Fri night..NE winds 10 to 15 kt. Seas 2 to 4 ft. Chance of showers in the evening.
Sat..NE winds 5 to 10 kt. Seas 2 to 4 ft.
Sat night..N winds 5 to 10 kt. Seas 2 to 3 ft.
Sun..N winds 5 to 10 kt. Seas 1 ft or less.
Sun night..E winds 5 to 10 kt. Seas 1 ft or less.
Mon..E winds around 5 kt. Seas 1 ft or less.
Mon night..SW winds around 5 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms.
ANZ300 125 Pm Edt Thu Sep 16 2021
Synopsis for the long island waters and new york harbor.. A front remains nearly stationary nearby, and gradually dissipates into Friday. Low pressure well south of long island on Friday will be moving northeast within the western atlantic through the weekend, passing well southeast of long island. Meanwhile, a weakening cold front approaches the local waters Saturday with high pressure eventually taking over for the latter half of the weekend into early next week.


7 Day Forecast for Marine Location Near New London, CT
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location: 41.26, -72.11     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 161757 AFDOKX

Area Forecast Discussion National Weather Service New York NY 157 PM EDT Thu Sep 16 2021

SYNOPSIS. A front remains nearly stationary south of Long Island, gradually dissipating into Friday. Low pressure well south of Long Island on Friday will be moving northeast within the Western Atlantic through the weekend, passing well southeast of Long Island. Meanwhile, a weakening cold front approaches the local region Saturday with high pressure eventually taking over for the latter half of the weekend into early next week. The high pressure area will start moving offshore by the middle of next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. A frontal boundary remains south of Long Island this afternoon with thunderstorms along the boundary where convergence is occurring. Otherwise showers and isolated thunderstorm will be possible this afternoon as daytime heating peaks. With the scattered nature and low probabilities have kept with the coverage wording. Much of the day will remain nearly overcast across the region.

With high moisture content, around 1.75 inches of precipitable water, any thunderstorm can produce locally and briefly heavy rainfall which may result in nuisance and poor drainage flooding. Slow movement of storms if persistent enough may produce a more substantial flood concern, as such, WPC has much of the area in a marginal risk for excessive rainfall today. The highs today will be in the middle to upper 70s.

SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/. Any stronger storms this evening gradually weaken though there will remain a chance for showers through much of the overnight period with onshore moist flow interacting with the stalled frontal boundary. Lows tonight will be in the middle to upper 60s.

The models remain coherent in their forecast depiction of a low off the coast of Carolinas. While the National Hurricane Center continues to indicate potential tropical development of this low, the models indicate a track of the low that passes southeast of the 40N/70W benchmark late Friday night and continue to track northeast farther away from the region for the upcoming weekend.

For Friday, with a narrow upper level jet streak off the coast of New England and right rear quadrant near the region, along with positive vorticity advection in the mid levels, there will be factors for lift during the day. These factors shift farther east Friday night eventually leaving the region. The surface pressure gradient between an offshore low and high pressure in the Canadian Maritimes will lead to easterly flow. With some frictional convergence and aforementioned factors aloft, there will be chances for showers through the day and into early evening and with weak instability, a slight chance for thunderstorms. Chances for showers lower Friday night with mainly dry conditions getting reestablished from west to east. Across the interior, with low level moisture, cooling of temperatures, and lighter winds, patchy fog is expected to develop Friday night into early Saturday morning.

LONG TERM /SATURDAY THROUGH THURSDAY/. For Saturday, a weak cold front approaches from the west. There will be a slight chance of showers and thunderstorms across Northeast NJ, Lower Hudson Valley, NYC, western parts of Long Island as well as Southwest Connecticut. These locations will be closer to the cold front and will be warmer and therefore more unstable relative to locations farther east.

For Saturday night into the rest of the weekend, high pressure will return and become established across the Northeastern Seaboard with dry weather forecast. A trough aloft and associated upper level jet will help accelerate the low in the Western Atlantic farther northeast, getting to a vicinity of southeast of the Canadian Maritimes.

Ridging increases Sunday night into early next week with high pressure at the surface remaining along the Northeastern Seaboard. This will be a large ridge of high pressure so expecting the weather to remain dry with subsidence from the high pressure. The high pressure area will start moving more out into the Atlantic by the middle of next week. Weather will remain mainly dry.

Temperatures are not much different from previous forecast with high temperatures averaging a few degrees above normal during the long term. One exception is Saturday with the relatively highest temperatures of the long term period, getting near 5 degrees above normal, as max temperatures reach more into the lower 80s.

AVIATION /18Z THURSDAY THROUGH TUESDAY/. A stationary front remains south of Long Island thru Fri.

Sct shwrs and isold tstms possible thru 00Z, but coverage and probability were to low to pinpoint in the TAF. Because of this, VCSH has been included til 00-01Z. There are additional chances for shwrs and tstms tngt, but again the probability was too low to include in the TAFs. An isold shwr/tstm cannot be ruled out for Fri.

Cigs are expected to fall to MVFR this aftn and then IFR tngt. Conditions may remain IFR most of Fri, with improvement possible mainly aft 18Z. There could be some vis reductions tngt in br. 5sm vis has been included across wrn terminals attm.

Winds will generally be around 060-080 thru the TAF period.

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

Amendments possible for the timing of falling cigs this aftn/eve. Amendments will be required if shwrs and tstms are expected to become widespread this aftn and/or eve.

OUTLOOK FOR 18Z FRIDAY THROUGH TUESDAY. Rest of Friday. Improvement to MVFR or VFR, then potential for IFR overnight. Sat. Mainly VFR. A cold front could produce isold-sct shwrs. Winds shift to the N by late in the day. Sun. VFR with NW flow. Mon-Tue. MVFR possible at times.

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

MARINE. The line of thunderstorms along the stalled frontal boundary have moved to just south of the forecast waters. No changes were made at this time to the forecast waters winds, seas, and weather.

Sub SCA conditions are expected into late tonight, though seas start building over the ocean waters around daybreak Friday.

Residual higher ocean seas of near 5 to 6 ft are forecast that will keep ocean with SCA level seas Friday into Saturday with otherwise sub-SCA conditions for non-ocean waters. Conditions are below SCA criteria for all waters by daybreak Sunday through early next week as strong high pressure moves across the waters, making for a weak pressure gradient.

HYDROLOGY. Showers and possibly a thunderstorm cannot be ruled out today. A few downpours are possible which may lead to nuisance minor urban flooding, however, the best chances for heavy rain is over the ocean, along a stalled frontal boundary.

TIDES/COASTAL FLOODING. There will be a moderate risk of rip currents today for the ocean beaches with 2 to 3 ft ocean seas with residual southerly swell and E-SE winds of near 10 kt. For Friday, ocean seas will be building to 5 to 6 ft with more of an easterly swell and winds will be E-NE near 10-15 kt, making for a high risk of rip currents for the ocean beaches.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . None. NJ . None. MARINE . None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LDLC3 - New London Ledge CT - Ledge Light Weather 4 mi164 min E 16 G 18 71°F 1022.4 hPa57°F
NLNC3 - 8461490 - New London, CT 7 mi54 min 72°F 73°F1024.6 hPa
MTKN6 - 8510560 - Montauk, NY 17 mi54 min 71°F 72°F1023.8 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 39 mi34 min NE 16 G 19 69°F 70°F4 ft1023 hPa67°F
NWHC3 - 8465705 - New Haven, CT 42 mi54 min ESE 2.9 G 5.1 72°F 74°F1024.6 hPa
QPTR1 - 8454049 - Quonset Point, RI 44 mi54 min NE 9.9 G 11 70°F 72°F1024.7 hPa
NWPR1 - 8452660 - Newport, RI 45 mi54 min NE 4.1 G 8.9 71°F 71°F1024.4 hPa
NAXR1 - Narragansett Bay Reserve, RI 48 mi99 min ENE 5.1 69°F 1025 hPa68°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 48 mi54 min ENE 5.1 G 7 70°F 1025.4 hPa
PRUR1 49 mi54 min 71°F 71°F

Wind History for New London, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT6 mi28 minE 510.00 miOvercast72°F66°F82%1023.7 hPa
Montauk, Montauk Airport, NY16 mi30 minENE 8 G 14 mi73°F66°F79%1023.9 hPa
Westerly, Westerly State Airport, RI18 mi31 minE 910.00 miMostly Cloudy70°F65°F84%1023.9 hPa
Chester, Chester Airport, CT23 mi29 minENE 410.00 miOvercast70°F68°F94%1024.4 hPa

Link to 5 minute data for KGON

Wind History from GON (wind in knots)
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Last 24hrS12S18S13SW12SW11SW7W9SW11SW6SW5SW6S8W3W3N7N11NE8NE8N11NE9E9E9E11E5
1 day agoSE8SE7E6SE6SE7SE6SE4SE7SE5SE4SE3S7S8S5CalmCalmCalmS5S7SW6SW9S8SW9SW10
2 days agoNW13W9NW9NW5NW3CalmCalmCalmCalmCalmCalmW4CalmNW3NE6N4NE5CalmNE5E3SE6SE7SE10SE10

Tide / Current Tables for Little Gull Island, Long Island Sound, New York
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Little Gull Island
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Thu -- 01:16 AM EDT     Moonset
Thu -- 06:30 AM EDT     Sunrise
Thu -- 06:33 AM EDT     2.08 feet High Tide
Thu -- 12:05 PM EDT     0.44 feet Low Tide
Thu -- 05:01 PM EDT     Moonrise
Thu -- 06:52 PM EDT     2.71 feet High Tide
Thu -- 06:55 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.40.81.21.51.92.12.11.81.51.10.70.40.611.51.92.32.62.72.52.11.61

Tide / Current Tables for The Race, Long Island Sound, New York Current (2) (expired 1993-12-31)
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The Race
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Thu -- 01:16 AM EDT     Moonset
Thu -- 02:37 AM EDT     0.00 knots Slack
Thu -- 05:28 AM EDT     2.85 knots Max Flood
Thu -- 06:29 AM EDT     Sunrise
Thu -- 08:24 AM EDT     -0.00 knots Slack
Thu -- 11:42 AM EDT     -3.26 knots Max Ebb
Thu -- 02:54 PM EDT     0.00 knots Slack
Thu -- 05:01 PM EDT     Moonrise
Thu -- 05:50 PM EDT     3.04 knots Max Flood
Thu -- 06:55 PM EDT     Sunset
Thu -- 08:47 PM EDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-3.4-2.4-10.72.12.82.82.10.7-0.9-2.1-3-3.2-2.5-1.40.11.82.832.61.3-0.4-1.9-3.1

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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