Norwich, CT Marine Weather and Tide Forecast

Marine Weather and Tide Forecast for Norwich, CT

December 10, 2023 3:38 AM EST (08:38 UTC)
Sunrise 7:02AM   Sunset 4:19PM   Moonrise  5:34AM   Moonset 3:27PM 

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. Privacy and Cookie policy

Marine Forecasts
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ANZ237 Block Island Sound- 101 Am Est Sun Dec 10 2023
.storm watch in effect from late tonight through Monday afternoon...
Rest of tonight..S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 nm or less.
Sun..S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Rain likely. Vsby 1 nm or less.
Sun night..S winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. Patchy fog. Rain. Vsby 1 nm or less.
Mon..SW winds 25 to 30 kt with gusts up to 50 kt, becoming W with gusts up to 35 kt in the afternoon. Seas 7 to 10 ft. Patchy fog. Rain. Vsby 1 nm or less.
Mon night..W winds 20 to 25 kt with gusts up to 35 kt, diminishing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 5 to 8 ft.
Tue and Tue night..W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Wed through Thu..NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
Thu night..W winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

ANZ200 101 Am Est Sun Dec 10 2023
Synopsis for massachusetts and rhode island coastal waters.. A powerful low pres will move across the waters Sun night and Mon. Wind gusts are expected to reach storm force, producing very rough seas. Conditions gradually improve on Tues as another high pres builds to the S of the region. A cold front will cross the waters on Wednesday. High pressure b builds south of the waters Thursday with yet another cold frontal passage early Friday.

7 Day Forecast for Marine Location Near Norwich, CT
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Area Discussion for - New York City/Upton, NY
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Area Forecast Discussion National Weather Service New York NY 103 AM EST Sun Dec 10 2023

High pressure over the western Atlantic will continue to gradually move eastward, while a strengthening frontal system over the mid section of the country tracks east. A strong cold frontal passage will occur late Sunday night into Monday morning, with low pressure deepening along it as it tracks into Canada on Monday. Strong high pressure building to to the south on Tuesday will flatten out, allowing a cold front to approach Tuesday night and pass through late Tuesday night or Wednesday morning. Another strong high will then build from the west for later in the week, then shift off the New England coast Saturday night.

A warm front will be nearby this evening and shift north through the night, with increasing clouds, also isolated showers across Long Island this evening, and patchy fog across eastern Long Island/CT this evening and elsewhere overnight. Isentropic lift with increasing low level moisture may result in some additional light rainfall in a few spots overnight. Low temps should be above normal due to cloud cover and WAA.

A 500 mb trough digs in to our west on Sunday, then lifts during the day Monday with its axis shifting through the forecast area Monday evening. At the surface, a strong cold front approaches us on Sunday and passes through during Sunday night. While it's passing through, an area of low pressure develops along the front, passing through or nearby the forecast area before rapidly deepening to our NE.

Rain chances ramp up through the day with the entire forecast area likely seeing rain by the end of the afternoon. The rain could be heavy at times as early as the afternoon as per latest CAM reflectivity, with this potential lasting into the night.
The heavy rain potential comes from a developing strong low level jet combining with deep synoptic lift aloft and an anomalously moist air mass. Some models continue to show some elevated instability, so with deep lift, will keep in an isolated thunderstorm in the forecast. Models continue to favor eastern areas for the higher total rain amounts, as the llj will be stronger here, and forcing/convergence near the deepening low center will be passing through or nearby. Further enhancement may occur in parts of CT due to speed convergence on a southerly flow. The flood watch has been extended to include eastern Suffolk County as the trend for heavier rain totals remains focused more over eastern sections. See the hydrology section below for more details.

Regarding winds for this event, for several days now, 925mb winds continue to be progged reach 60-80 kt over roughly the eastern half of the forecast area Sunday night. Even by late afternoon, they're progged at 50-60 kt. There will be a low level inversion, but not particularly strong. Especially with the threat of convectively enhanced downpours and models showing 50-60kt winds below the inversion at 1000 ft, there is an increased threat of seeing wind gusts reaching high wind warning thresholds in some areas. Thinking about 60-70% of the 925 mb jet could mix down. Complicating this is that there could be a couple hours of a lull in the winds as low pressure takes shape along the developing low nearby or just off to our south. There could be a pretty sharp east to west gradient where winds could get to at least wind advisory criteria. There also could be a timing offset on when the potential convective downpours could occur with the strongest winds aloft. Therefore do not have the confidence at this time to upgrade to a high wind warning for the zones currently under a watch. There is a possibility that the threat will be more focused over Long Island, and not so much for Brooklyn and Queens. Will however maintain the watch for the time being. However, after collaboration with WFO BOX, have enough confidence to go with a wind advisory along portions of the CT Coast.

Rain chances continue into Monday even behind the front as the flow aloft remains cyclonic and we'll be within the right entrance region of an upper jet streak. Some cold air wraps in behind the front, and may cause a mix of rain and snow well NW of the city in the morning. Little to no snow accumulation expected. Remaining breezy through the day as we dry out for the afternoon. Highs generally in the 40s.

Quasi-zonal flow aloft in the wake of one departing trough on Tue will give way to another northern stream trough on Wednesday, which should drive a cold front through either late Tuesday night or Wednesday morning. Confluent mid level flow after this trough passage, followed by ridging aloft Fri-Sat, will then maintain strong sfc high pressure over the area, with perhaps a weak intervening cold frontal passage Friday night. A storm system to the west should hold off until just after the forecast period, with some increase in high/mid cloud cover Sat into Sat night.

Forecast follows the NBM for the most part given close enough NWP model guidance agreement during this time frame, with only minor adjustments. Fair wx should prevail through the period, with only slight chance (20%) PoP for late Sat night. Near normal temps Tue- Wed, and a little below normal Wed night-Thu after the cold frontal passage, should moderate to a few degrees above normal Fri-Sat via ridging sfc and aloft.

High pressure moves offshore tonight, while a strengthening frontal system approaches Sunday and crosses the region Sunday Night.

IFR/MVFR conditions become more widespread late tonight into Sun AM push. SHRA chances increase during the mid morning, with IFR/LIFR in +SHRA expected Sun aft into Sun Night. Isolated TSRA possible.

Light southerly flow tonight. Southerly flow will increase through Sunday afternoon, with southerly gusts 35 to 45 kt likely at the coastal terminals for the late aft/evening push.
Highest gusts for KJFK/KISP/KGON.

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

MVFR conditions likely, IFR possible for morning push. Scattered rain showers possible for morning push. +SHRA with IFR/LIFR conds and gusts 35 to 40 kt likely for evening push. Isolated TSRA possible for aft/eve push as well. LLWS w/ S winds of 50-60kt at 2kft for coastal terminals in aft/eve.


Sunday night: IFR, with +SHRA. Isolated TSRA possible. S winds 25-35G30-45kt for coastal terminals, strongest for eastern terminals. A peak gust up to 50 kt possible at KISP/KGON. LLWS with S winds of 50-60kt@2kft for coastal terminals in the evening. FROPA to NW winds 15g25kt btwn 03-05z for western terminals and 9-12z for eastern terminals

Monday: MVFR or lower for AM push in RA/SN mix for western terminals. VFR in afternoon. W-WNW winds 20-25G30-40kt.

Tuesday: VFR. SW gusts 15-20 kt in the afternoon.

Wednesday: VFR. W to NW gusts 15-25 kt in the afternoon.

Thursday: VFR.

Detailed information, including hourly TAF wind component forecasts, can be found at: https:/

Winds and seas should ramp up quickly during Sunday with SCA cond quickly going to gales by late in the day/early evening.
After collaboration with the surrounding offices, have maintained a Storm Watch where it has existed, but was confident enough to convert the Gale Watches to Gale Warnings.
Gales are expected to continue through Monday, and possibly linger into Monday evening for these zones. Gales would also prevail elsewhere Monday into Monday night. Ocean seas are likely build to 10-16 feet during this time with waves over 5 ft across portions of eastern Long Island Sound.

Longer term, SCA cond expected for the most part. Hazardous ocean seas 5-8 ft Tue AM should subside to 4-6 ft by afternoon, then remain at those levels into at least Wed night.
Meanwhile W flow gusting up to 25 kt on all waters Tue night, should shift NW by Wed morning after a cold frontal passage.
Gusts could peak at 30 kt on the ocean Wed night. Lingering 25-kt gusts are possible on the ocean and the open Sound waters into daytime Thu.

A flood watch remains in effect for the entire area. Between 2-3 inches of rain is likely Sunday into Monday morning. Locally higher amounts in excess of 3 inches are possible - potentially up to 4-5 inches in parts of southern Connecticut. Widespread urban and poor drainage flooding is likely, with some areas of more significant flooding possible, including the flooding of some rivers and streams. Heavier downpours will be possible as early afternoon, but impacts are more likely later afternoon into the night.

A strong cold front will bring increasing S flow late Sunday into Sunday night. The system brings potential for minor coastal flooding with the Monday morning high tide cycle. Winds quickly shift to the W-NW late Sunday night/early Monday morning, which will help keep water levels down during times of high tide.
That said, latest Stevens NYHOPS 95th percentile numbers and taking into account wave runup on south facing coastlines suggest some potential for the CT coastline and the forks of Long Island to touch minor thresholds.

CT...Flood Watch from this afternoon through late tonight for CTZ005>012.
Wind Advisory from 6 PM this evening to 6 AM EST Monday for CTZ010>012.
NY...Flood Watch from this afternoon through late tonight for NYZ067>075-078>081-176>179.
High Wind Watch from this afternoon through late tonight for NYZ075-078>081-176>179.
NJ...Flood Watch from this afternoon through late tonight for NJZ002-004-006-103>108.
MARINE...Gale Warning from 4 PM this afternoon to 6 PM EST Monday for ANZ331-335-338.
Storm Watch from this afternoon through late tonight for ANZ332-340-345-350-353-355.

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
NLHC3 10 mi51 min 49°F 49°F30.08
LDLC3 - New London Ledge CT - Ledge Light Weather 15 mi39 min S 4.1G5.1 50°F
MTKN6 - 8510560 - Montauk, NY 33 mi51 min 50°F 48°F30.05
PDVR1 36 mi51 min 0G1.9 48°F 30.1147°F
QPTR1 - 8454049 - Quonset Point, RI 36 mi51 min SSE 4.1G5.1 50°F 45°F30.11
NAXR1 - Narragansett Bay Reserve, RI 40 mi114 min W 1.9 49°F 30.1249°F
NWPR1 - 8452660 - Newport, RI 40 mi51 min 0G1 50°F 49°F30.11
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 40 mi51 min SSE 1G1.9 49°F 30.13
CPTR1 - 8452944 - Conimicut Light, RI 41 mi51 min SE 7G7 46°F 46°F30.10
FOXR1 - 8454000 - Providence, RI 41 mi51 min SSE 4.1G5.1 47°F 46°F30.11
PVDR1 41 mi51 min SSE 4.1G4.1 46°F 30.1246°F
PRUR1 42 mi51 min 50°F
NWHC3 - 8465705 - New Haven, CT 47 mi51 min SSE 5.1G6 49°F 47°F30.08
FRXM3 49 mi51 min 48°F 48°F

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Wind History for No Ports station near this location
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No data

Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KGON GROTONNEW LONDON,CT 13 sm34 minS 033 smOvercast Mist 50°F50°F100%30.10
KIJD WINDHAM,CT 16 sm11 mincalm1/2 smOvercast Fog 39°F39°F100%30.07
KWST WESTERLY STATE,RI 19 sm7 minS 031/2 smOvercast Mist 48°F48°F100%30.08

Wind History from GON
(wind in knots)

Tide / Current for Norwich, Thames River, Connecticut
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Norwich, Thames River, Connecticut, Tide feet

Tide / Current for The Race, Long Island Sound, New York Current
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The Race
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Sun -- 02:54 AM EST     0.01 knots Slack
Sun -- 04:33 AM EST     Moonrise
Sun -- 05:51 AM EST     2.61 knots Max Flood
Sun -- 07:02 AM EST     Sunrise
Sun -- 09:07 AM EST     -0.00 knots Slack
Sun -- 12:18 PM EST     -3.16 knots Max Ebb
Sun -- 02:27 PM EST     Moonset
Sun -- 03:41 PM EST     0.00 knots Slack
Sun -- 04:19 PM EST     Sunset
Sun -- 06:25 PM EST     2.48 knots Max Flood
Sun -- 09:42 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

The Race, Long Island Sound, New York Current, knots

Weather Map
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GEOS Local Image of Northeast   

Boston, MA,

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