Monday, March8, 2021
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Marine Weather and Tides
New London, CT

Version 3.4
NOTICE
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 6:09AMSunset 5:48PM Monday March 8, 2021 10:24 AM EST (15:24 UTC) Moonrise 4:36AMMoonset 1:45PM Illumination 25% Phase: Waning Crescent; Moon at 25 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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ANZ340 Peconic And Gardiners Bays- 419 Am Est Mon Mar 8 2021
Today..W winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft.
Tonight..SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves 1 to 2 ft.
Tue..W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves 1 to 2 ft.
Tue night..N winds 5 to 10 kt. Waves 1 ft or less.
Wed..E winds around 5 kt, becoming se in the afternoon. Waves 1 ft or less.
Wed night..S winds 5 to 10 kt. Waves 1 ft or less.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft.
Thu night..SW winds 15 to 20 kt. Waves 1 to 2 ft.
Fri..SW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. Chance of showers.
Fri night..W winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft.
ANZ300 419 Am Est Mon Mar 8 2021
Synopsis for the long island waters and new york harbor.. High pres will build over the waters today, then drift to the S tonight as a warm front approaches. The front will lift through Tue morning, followed by a cold front Tue evening. High pres will again build over the waters later Tue night into Wed morning, then pass E Wed afternoon into Thu. A cold front will approach on Fri.


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 081129 AFDOKX

Area Forecast Discussion National Weather Service New York NY 629 AM EST Mon Mar 8 2021

SYNOPSIS. High pressure will build over the area today will sink to the south late today. A warm front will approach tonight and lift through Tuesday morning, followed by a cold front Tuesday evening. High pressure will again build in later Tuesday night into Wednesday morning, then pass east later Wednesday into Thursday. A cold front will slowly approach on Friday and become stationary to the south by Saturday night. Unsettled weather should continue into the weekend as low pressure approaches from the Ohio valley.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Subsidence beneath the high will yield sunny skies, with high temps a couple of degrees above MOS, with mid 40s in NE NJ, lower 40s most elsewhere, and upper 30s across ern Long Island, SE CT, and the higher elevations elsewhere.

SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY/. Clouds should slowly increase with the approach of the warm front tonight, becoming mostly cloudy after midnight. Low level WAA may be sufficient to produce a few sprinkles across eastern Long Island and SE CT late. The cloud cover should moderate low temps as compared to last night, low temps reached at or before midnight, then rising overnight tonight

After warm fropa, sunny skies expected, and with downslope flow and mixing up to 875 mb, temps should be on the mild side, with lower 60s in NE NJ and NYC, mid/upper 50s most elsewhere, and lower 50s near the south shore of eastern Long Island and SE CT. A back door cold front will be entering the area late in the day as a lobe of high pressure moves from the Great Lakes into northern PA and upstate NY, but with downslope NW flow (as opposed to shallow NE flow often seen with marine back door fronts) do not think temps will see much impact Tue night except NW of NYC, with lows there in the mid/upper 20s, 30s most elsewhere, and lower 40s in NYC.

Have forecast lower temps for Tue with a stronger subsidence inversion in place as the high moves across, followed by onshore flow as the high shifts east by afternoon. Highs on Wed should be a fairly uniform lower 50s near the coast and mid 50s inland.

LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/. A SW return flow should develop by Thu, with a warming trend through Friday.

CPC ensemble mean forecasts continue to show convergence on a return to a positive NAO into the week. Guidance had held steady with H8 temps of of 8-10 deg C Thu/Fri, with the high slower to move east on Friday, thus maintaining SW flow for much of the day. As a result, and if increased cloud cover doesn't mitigate temps too much, Friday looks to be another mild day before a cool-down this weekend.

With SSTs in the lower 40s across the ocean waters, coupled with the SW wind component, coastal areas will not get as warm as the interior, and should remain in the mid 50s Thu/Fri. Record high temps do not appear in jeopardy.

By Fri afternoon, the ridge shifts to the east of the area with an upper trough passing over New England, and a sfc cold front passing through Fri night, with precip chances Fri afternoon/evening, albeit light. The front should then stall to the south as zonal flow aloft commences, and a deeper closed low takes shape across the Central Plains and moves east by Sunday. Cold advection behind the front will drop temperatures to more seasonable into Sunday.

The stalled boundary remains just south of the area on Sunday as a surface low develops over the OH Valley, keeping the area in clouds and light precipitation chances Sunday, especially Sunday morning. Temperatures may be marginally cold enough Sunday morning for a rain/snow mix across the interior, with plenty of time, still, to work out those details.

AVIATION /12Z MONDAY THROUGH FRIDAY/. VFR as high pressure builds to the south through this evening. A weak cold front approaches tonight, and passes through Tuesday morning.

NW-NNW winds around 10 kt through the morning push at NYC metro terminals. NW winds increasing to around 10 kt for outlying terminals. Winds back to the W/SW by late afternoon, then SW in the evening. SW winds 5-10 kt potential for south coastal terminals late tonight.

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

Timing of winds backing left of 310 magnetic in the afternoon could be off by 1 to 2 hours.

OUTLOOK FOR 12Z TUESDAY THROUGH FRIDAY. Tuesday. VFR. SW winds veering to W/NW Tue afternoon. Wednesday. VFR. Light winds NE/E winds AM, becoming SE PM. Wednesday Night. MVFR or lower in stratus possible for coastal terminals. Thursday. MVFR or lower AM coastal terminals, then VFR. S-SW gusts 15-20 kt. Friday. Mainly VFR. Chance of showers. S-SW gusts 20-25 kt.

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

MARINE. SW flow as a warm front passes late tonight into Tue AM could bring minimal SCA conds (both seas and wind gusts) to the ern ocean waters during that time frame.

By Thu afternoon, strengthening SW flow ahead of an approaching cold front will result in SCA conds on the ocean, with seas building to 5 ft and gusts 25-30 kt. Ocean seas will remain elevated into Saturday afternoon, with seas 5-7 ft and occasional gusts to 30 kt before diminishing late Saturday.

Ocean seas could begin to build again on Sunday evening, with occasional gusts to 25 kt.

HYDROLOGY. No hydrologic concerns are expected.

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

SYNOPSIS . BG/DBR NEAR TERM . BG SHORT TERM . BG LONG TERM . BG/DBR AVIATION . NV MARINE . BG/DBR HYDROLOGY . BG/DBR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LDLC3 - New London Ledge CT - Ledge Light Weather 4 mi30 min NW 12 G 16 30°F 1026.7 hPa
NLNC3 - 8461490 - New London, CT 7 mi55 min 29°F 1029.6 hPa
MTKN6 - 8510560 - Montauk, NY 17 mi55 min 27°F 1030.3 hPa
44039 - Central Long Island Sound 30 mi85 min NW 12 G 18 27°F 36°F1 ft
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 39 mi35 min NW 12 G 16 29°F 41°F2 ft1030.5 hPa16°F
NWHC3 - 8465705 - New Haven, CT 42 mi55 min NNW 14 G 20 27°F 36°F1031.6 hPa
QPTR1 - 8454049 - Quonset Point, RI 44 mi55 min N 8.9 G 11 29°F 37°F1029.1 hPa
NWPR1 - 8452660 - Newport, RI 45 mi55 min N 9.9 G 13 28°F 36°F1029 hPa
NAXR1 - Narragansett Bay Reserve, RI 48 mi100 min N 5.1 30°F 1029 hPa10°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 48 mi55 min N 4.1 G 8 31°F 1029.8 hPa
PRUR1 49 mi55 min 30°F 10°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 mi29 minNW 910.00 miFair32°F8°F36%1029.3 hPa
Montauk, Montauk Airport, NY16 mi31 minW 8 mi31°F11°F43%1029.8 hPa
Westerly, Westerly State Airport, RI18 mi32 minW 710.00 miFair28°F8°F43%1029.3 hPa
Chester, Chester Airport, CT23 mi30 minNNW 1110.00 miFair30°F3°F31%1029.5 hPa

Link to 5 minute data for KGON

Wind History from GON (wind in knots)
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Tide / Current Tables for Little Gull Island, Long Island Sound, New York
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Little Gull Island
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Mon -- 03:36 AM EST     Moonrise
Mon -- 05:24 AM EST     2.41 feet High Tide
Mon -- 06:11 AM EST     Sunrise
Mon -- 11:31 AM EST     -0.01 feet Low Tide
Mon -- 12:44 PM EST     Moonset
Mon -- 05:47 PM EST     Sunset
Mon -- 06:09 PM EST     1.77 feet High Tide
Mon -- 11:35 PM EST     0.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.511.41.92.22.42.42.11.71.10.50.100.30.611.41.61.81.71.41.10.70.3

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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Mon -- 01:24 AM EST     0.01 knots Slack
Mon -- 03:36 AM EST     Moonrise
Mon -- 04:19 AM EST     2.87 knots Max Flood
Mon -- 06:11 AM EST     Sunrise
Mon -- 07:17 AM EST     -0.00 knots Slack
Mon -- 10:46 AM EST     -3.66 knots Max Ebb
Mon -- 12:44 PM EST     Moonset
Mon -- 02:13 PM EST     0.01 knots Slack
Mon -- 05:09 PM EST     2.82 knots Max Flood
Mon -- 05:47 PM EST     Sunset
Mon -- 08:01 PM EST     -0.00 knots Slack
Mon -- 11:15 PM EST     -3.21 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.8-0.612.32.82.720.5-1.1-2.4-3.4-3.6-3-1.9-0.41.32.42.82.61.50-1.3-2.5-3.2

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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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