Groton, CT Marine Weather and Tide Forecast
L-36.com
Top   Marine   7-Day   NWS   Buoy   Airport   Tide   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for Groton, CT

June 15, 2024 6:59 AM EDT (10:59 UTC) Change Location
Sunrise 5:12 AM   Sunset 8:25 PM
Moonrise 2:11 PM   Moonset 1:28 AM 
  Print   HELP   Reset   Save   Recall  New
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
    EDIT      HIDE   Help
ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 600 Am Edt Tue Mar 30 2021

Today - E winds around 5 kt, becoming S late this morning and afternoon. Seas 1 ft or less.

Tonight - S winds around 10 kt. Seas 1 to 2 ft.

Wed - S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers in the morning, then chance of rain in the afternoon.

Wed night - S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain. Vsby 1 to 3 nm.

Thu - W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers.

Thu night - NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.

Fri - NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

Fri night - NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

Sat - W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

Sat night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

ANZ300 543 Am Edt Sat Jun 15 2024

Synopsis for the long island and connecticut coastal waters - High pressure builds in from the northwest today, moving overhead Sunday morning and offshore by Sunday evening. The high remains in control through late next week. A few weak disturbances may approach from the north next weekend.


7 Day Forecast for Marine Location Near Groton city, CT
   Hourly   EDIT   Help   Map   HIDE
NEW! Add second zone forecast


Area Discussion for - New York City/Upton, NY
      HIDE   Help   
NOTE: mouseover dotted underlined text for definition
FXUS61 KOKX 150950 AFDOKX

Area Forecast Discussion National Weather Service New York NY 550 AM EDT Sat Jun 15 2024

SYNOPSIS
High pressure builds in from the northwest today, moving overhead Sunday morning and offshore by Sunday evening. The high remains in control through late next week. A few weak disturbances may approach from the north next weekend.

NEAR TERM /THROUGH TONIGHT/
The cold front is now offshore and will continue to head east this morning. The upper level trough axis can be seen in water vapor satellite imagery passing through the area currently. The whole area is now dry with any lingering showers now offshore.
Continued the mention of fog in the forecast for western areas as they cleared out first and fog was able to develop.

As the upper level trough shifts east this morning, heights rise as a ridge builds over the eastern US. At the surface, high pressure builds in from the northwest. The airmass building in will be drier and a bit cooler than the past several days. Highs today will likely top out in the upper 70s to low 80s. With dewpoints in the upper 40s to low 50s, the air will have a comfortable feel.

Given the dry airmass and mostly clear skies/some thin high clouds, radiational cooling should help the usual cool spots get down to the upper 40s/low 50s.

SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/
Heights continue to rise aloft through Monday night. High pressure at the surface will move overhead early Sunday and then offshore by Sunday evening, but will remain in control through the week.

The short term period will be dry and mostly sunny. Some energy rounding the upper level ridge will pass overhead Sunday afternoon/evening, but will likely just result in some high clouds.

Temperatures Sunday will be just a few degrees cooler than Saturday, with the same low dewpoints. As the high shifts offshore later on Sunday a return flow sets up and moisture increases. Dewpoints return to the mid 60s on Monday, with highs in the 80s for most.
This will likely be the last day before a heat wave sets up for the rest of the week.

LONG TERM /TUESDAY THROUGH FRIDAY/
**Key Point**

* A long duration heat wave is expected during most of next week beginning on Tuesday and lasting until Friday or Saturday. Heat index values of greater than 95 degrees are expected for much of the area during this time.

A strengthening deep layer ridge will be positioned over the East Coast by Tuesday with a surface high pressure system over the Western Atlantic. Low level flow on the west side of the high pressure will allow for a southerly or southwesterly flow through much of the extended period. This will allow for the advection of both low level moisture and warm air.

The upper level ridge continues strengthening in intensity through the middle and end of the week, eventually peaking in strength by Thursday with 500mb heights between 594 and 600dam. This highly anomalous strength in the upper level ridge will allow for a prolonged heat event to take place over the entire Northeast. By Tuesday, surface highs will be in the 90s for much of the interior portions of the area with coastal locations in the middle to upper 80s.

Heat persists through the week, eventually allowing temperatures to rise into the middle to upper 90s for interior portions of the Lower Hudson Valley, NE NJ, and southern CT. It would not be that surprising if some locations hit 100 degrees, especially into Thursday and Friday. Because this is a fairly early season heat wave, relatively cooler waters only in the 60s will shelter Long Island and immediate coastal Connecticut from experiencing the worst of the heat, but may result in some enhanced surface moisture over these areas. Heat index values will likely be greater than 95 degrees during each afternoon from Tuesday through at least Friday for everywhere except Long Island. This may eventually facilitate heat headlines.

Given the duration and intensity of the anticipated heat, it is important to take precautions to protect one's health, particularly those without effective cooling and/or adequate hydration. Some heat- sensitive industries and infrastructure will likely be impacted by the extent of this heat as well.

AVIATION /10Z SATURDAY THROUGH WEDNESDAY/
A cold front pushes through the terminals into early morning.
High pressure then builds into the area from the north into Sunday.

Mainly VFR through the TAF period. There is a very low chance of localized brief MVFR/IFR cigs or visibilities before 10Z for coastal terminals.

Winds may be light and variable before the cold front provides a mainly N/NW flow around 10kt. There is also a chance for a few gusts 15-20kt behind the cold front, but that is more likely after 12Z.
Gusts diminish in the later afternoon Saturday as high pressure works in from the Great Lakes.

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

Northerly wind gusts could develop sooner than forecast behind the cold front overnight, but should not be frequent until late morning.

OUTLOOK FOR 06Z SUNDAY THROUGH WEDNESDAY...

Saturday Night through Wednesday: VFR.

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

MARINE
Waves slowly build through tonight, but will likely remain below 5 ft. With high pressure remaining in control, sub SCA conditions are expected on all waters this weekend thru early next week.

HYDROLOGY
There are no hydrologic concerns through the end of next week.

TIDES/COASTAL FLOODING
Rip current conditions improve today, with a moderate risk as winds shift offshore. The moderate risk will continue on Sunday.

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




Weather Reporting Stations
   EDIT       HIDE   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
NLHC3 5 mi59 min 29.87
MTKN6 - 8510560 - Montauk, NY 19 mi59 min 29.81
QPTR1 - 8454049 - Quonset Point, RI 41 mi59 minNNW 6G8 29.87
NWPR1 - 8452660 - Newport, RI 42 mi59 minN 2.9G6 29.86
PDVR1 42 mi59 minNW 8G9.9 29.85
NWHC3 - 8465705 - New Haven, CT 44 mi59 minNNE 8G11 29.90
NAXR1 - Narragansett Bay Reserve, RI 46 mi74 minNNE 1.9 63°F 29.8663°F
PRUR1 46 mi71 min 65°F 63°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 46 mi59 minN 4.1G7 29.89
CPTR1 - 8452944 - Conimicut Light, RI 48 mi59 minNW 11G14 29.87


Wind History for No Ports station near this location
(wind in knots)    EDIT      HIDE   Help
toggle option: (graph/table)

No data


Airport Reports
    EDIT      HIDE   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KGON GROTONNEW LONDON,CT 3 sm63 minN 1010 smPartly Cloudy64°F63°F94%29.86
KWST WESTERLY STATE,RI 15 sm66 minN 0410 smPartly Cloudy64°F63°F94%29.86
KMTP MONTAUK,NY 17 sm65 minN 05--66°F63°F88%29.87
KSNC CHESTER,CT 23 sm24 minNNW 0610 smClear66°F63°F88%29.91
Link to 1 hour of 5 minute data for KGON
   
NEW Forecast page for KGON


Wind History graph: GON
(wind in knots)
toggle option: (graph/table)


Tide / Current for Silver Eel Pond, Fishers Island, N.Y.
   
EDIT   Weekend mode (on/off)   HIDE   Help
Silver Eel Pond
Click for Map
Sat -- 01:27 AM EDT     Moonset
Sat -- 04:46 AM EDT     2.01 feet High Tide
Sat -- 05:14 AM EDT     Sunrise
Sat -- 11:24 AM EDT     0.56 feet Low Tide
Sat -- 02:10 PM EDT     Moonrise
Sat -- 05:23 PM EDT     2.42 feet High Tide
Sat -- 08:23 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Silver Eel Pond, Fishers Island, N.Y., Tide feet
12
am
0.8
1
am
1.1
2
am
1.4
3
am
1.7
4
am
1.9
5
am
2
6
am
1.9
7
am
1.7
8
am
1.4
9
am
1.1
10
am
0.8
11
am
0.6
12
pm
0.6
1
pm
1
2
pm
1.4
3
pm
1.9
4
pm
2.2
5
pm
2.4
6
pm
2.4
7
pm
2.2
8
pm
1.9
9
pm
1.6
10
pm
1.2
11
pm
0.8


Tide / Current for The Race, Long Island Sound, New York Current
   EDIT      HIDE   Help
The Race
Click for Map
Sat -- 01:07 AM EDT     0.00 knots Slack
Sat -- 01:27 AM EDT     Moonset
Sat -- 03:46 AM EDT     1.73 knots Max Flood
Sat -- 05:14 AM EDT     Sunrise
Sat -- 07:04 AM EDT     -0.00 knots Slack
Sat -- 10:02 AM EDT     -2.13 knots Max Ebb
Sat -- 01:15 PM EDT     0.00 knots Slack
Sat -- 02:10 PM EDT     Moonrise
Sat -- 04:07 PM EDT     2.05 knots Max Flood
Sat -- 07:33 PM EDT     -0.00 knots Slack
Sat -- 08:23 PM EDT     Sunset
Sat -- 10:36 PM EDT     -2.38 knots Max Ebb
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
12
am
-1.1
1
am
-0.1
2
am
0.9
3
am
1.6
4
am
1.7
5
am
1.4
6
am
0.9
7
am
0.1
8
am
-0.9
9
am
-1.8
10
am
-2.1
11
am
-1.9
12
pm
-1.2
1
pm
-0.3
2
pm
0.8
3
pm
1.7
4
pm
2
5
pm
1.9
6
pm
1.4
7
pm
0.6
8
pm
-0.5
9
pm
-1.6
10
pm
-2.3
11
pm
-2.3


Weather Map
      HIDE   Help


GEOS Local Image of Northeast   
EDIT   HIDE



Boston, MA,




NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE