Tuesday, July27, 2021
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Marine Weather and Tides
Mashantucket, 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 5:37AMSunset 8:12PM Tuesday July 27, 2021 1:56 AM EDT (05:56 UTC) Moonrise 10:39PMMoonset 9:20AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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- 1026 Pm Edt Mon Jul 26 2021
Overnight..W winds around 5 kt. Seas 1 ft or less. Patchy fog late this evening and early morning. Hazy. Vsby 1 to 3 nm.
Tue..W winds around 5 kt, becoming sw in the afternoon. Seas 1 ft or less. Hazy in the morning.
Tue night..W winds 5 to 10 kt, becoming N after midnight. Seas 1 ft or less. Chance of showers and tstms.
Wed..N winds 5 to 10 kt, becoming E in the afternoon. Seas 1 ft or less. Chance of showers in the morning.
Wed night..SE winds around 5 kt. Seas 1 ft or less.
Thu..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the afternoon.
Thu night..SW winds around 10 kt with gusts up to 20 kt. Seas 1 ft or less, then around 2 ft after midnight. Chance of showers.
Fri..W winds around 10 kt with gusts up to 20 kt. Seas around 2 ft.
Fri night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Sat..W winds around 10 kt. Seas around 2 ft.
Sat night..SW winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms.
ANZ300 1026 Pm Edt Mon Jul 26 2021
Synopsis for the long island waters and new york harbor.. Weak high pressure builds in from the west across the waters overnight. A cold front will approach from the north late Tuesday, and move across the waters Tuesday night. Weak high pressure builds in Wednesday. A cold front approaches on Thursday and passes through Thursday night into Friday. High pressure then builds in through Saturday.


7 Day Forecast for Marine Location Near Mashantucket, CT
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location: 41.46, -71.97     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 270248 AFDOKX

Area Forecast Discussion National Weather Service New York NY 1048 PM EDT Mon Jul 26 2021

SYNOPSIS. High pressure builds in from the west overnight. High pressure will weaken Tuesday with a cold front from the north then approaching the region. The cold front moves across Tuesday night. Weak high pressure builds in Wednesday. A cold front approaches on Thursday and passes through Thursday night into Friday. High pressure then builds in through Saturday before another frontal system approaches late on Sunday.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. Some residual smoke/haze causing a reduction in visibility (5-6sm) for northern areas overnight. Otherwise, with high pressure at the surface building in from the west, expecting mostly clear sky conditions tonight. Along with decreasing winds, radiational cooling will be optimized. Some patchy fog also possible for these far outlying areas overnight with radiational cooling.

Mid and upper level westerly flow will keep a dry airmass in place. Dewpoints will stay well down into 60s and even upper 50s overnight. A MAV/MET MOS blend was used for low temperatures to resolve a more vast range of temperatures between the urban heat island and outlying rural sections. Lows range from the upper 50s to near 60 for outlying rural sections to low to mid 70s within NYC.

SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/. High pressure at the surface will gradually weaken on Tuesday. A cold front will approach from the north and move across Tuesday night. Drier air at the surface will still be present with lowering dewpoints going into the morning and early afternoon. Forecast 850mb temperatures are expected to reach 17 to 18 degrees C. Highs were a blend of NBM and MOS consensus in the upper 80s to lower 90s. Dewpoints staying mostly in the lower 60s will keep heat indices close to actual temperatures.

Showers and thunderstorms will become probable for interior areas late in the afternoon, but across the whole region Tuesday night as the cold front moves closer to the region. Thunder chances highest for the first half of the night between 8PM Tuesday and 2AM Wednesday. Instability will be limited and will decrease more late at night so after 2AM, thunder chances become slight with a continued chance of showers.

Vertical forcing increases most Tuesday night with positive vorticity advection in the mid levels. Bulk shear will be increasing 0-6km to 30-40 kt so some thunderstorms could be strong with gusty winds. Highest instability at the surface will be in the southern half of the region with around 1000 to 1500 J/kg of CAPE and less to the north. Most of the upper level energy seems to be focused to the north of the region where the height falls will be more and omega will be higher. There is a marginal risk of severe thunderstorms across parts of the Lower Hudson Valley and Southern Connecticut.

Lows Tuesday night were taken from a consensus of all guidance with temperatures ranging from the lower 60s across the interior to upper 60s and lower 70s along and near the coast as well as NYC.

LONG TERM /WEDNESDAY THROUGH MONDAY/. The long term continues to be dominated by a large mid-level trough that is reinforced by shortwaves in the flow through the weekend and into next week.

Weak high pressure over the area on Wednesday may result in a few showers or thunderstorms though coverage should be rather isolated if they occur at all. The weak high shifts offshore into Wednesday night providing for an increasing southerly flow advecting moisture back into the area. An intensifying low pressure system to the north tightens the pressure gradient over the area ahead of the approaching cold front. Showers become likely much of the day Thursday with an isolated thunderstorm possible late in the day. Though there is some uncertainty in the timing of the frontal passage, showers looks to continue into Thursday night and early Friday.

A brisk NW flow behind the front on Friday gradually weakens into Saturday as a high pressure tries to build in from the southwest, but Friday and Saturday will be mostly, if not entirely, dry. High pressure quickly gets pushed offshore by Sunday as another frontal system brings another cold front into the area for late on Sunday. The strongest forcing appears to be toward the north of the area, but the GFS brings in a surge of moisture just ahead of the front resulting a significant difference in precipitation and rainfall amounts. Capped the PoPs at a chance for now. Thereafter, models diverge in the pattern but look to show a generally dry Monday and Tuesday.

AVIATION /03Z TUESDAY THROUGH SATURDAY/. Weak high pressure remains over the region into Tuesday. A cold front approaches from the north late in the day, and crosses in the evening.

MVFR in haze for northern terminals through the evening. Some haze aloft possible tomorrow afternoon, although HRRR model guidance not indicating vsby impacts to the surface.

Light and variable winds this evening, becoming W/NW less than 7 kt Tuesday morning. S/SE 8-12 kt afternoon seabreeze development expected at most terminals. Potential for scattered shra/tsra after 00z.

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

Light W/NW winds (less than 5 kt) for Tue morning push. S/SE seabreeze 8-12 kt for evening push. Potential for scattered shra/tsra btwn 01z and 05z

OUTLOOK FOR 00Z WEDNESDAY THROUGH SATURDAY. Tuesday night. Chance of brief MVFR/local IFR cond with any showers/isolated tstms. Wednesday and Wednesday night. VFR. Slight chance of a shower or tstm. Thursday and Thursday night. Chance of MVFR, local IFR, with a chance of showers and thunderstorms. Friday-Saturday. VFR.

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

MARINE. A weak pressure gradient will be in place across the waters with conditions expected to remain below SCA thresholds through Wednesday night.

A strengthening southerly flow ahead of an approaching cold front will likely bring SCA conditions to the ocean waters late Thursday into Thursday night. Waves will slowly subside on Friday in a post-frontal NW flow, which may bring marginal SCA gusts during the afternoon. Elsewhere, conditions are forecast to remain below SCA criteria. Conditions drop below SCA conditions by Friday night.

HYDROLOGY. Layer PWATS reach almost 1.7 inches Tuesday night. Aside from the possibility of minor flooding with thunderstorms in low lying and poor drainage areas with locally higher amounts of rainfall Tuesday night, no hydrologic issues are expected through Tuesday night.

Looking ahead, no hydrologic impacts are expected Wednesday through early next week.

TIDES/COASTAL FLOODING. A moderate risk of rip current development is forecast for the ocean beaches for Tuesday, with a mix of 2 ft S and SE swells.

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

SYNOPSIS . JM/MW NEAR TERM . JM/NV/MW SHORT TERM . JM LONG TERM . MW AVIATION . NV MARINE . JM/MW/NV HYDROLOGY . JM/MW TIDES/COASTAL FLOODING . JM/NV


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NLNC3 - 8461490 - New London, CT 9 mi146 min 73°F 67°F1013.4 hPa
MTKN6 - 8510560 - Montauk, NY 28 mi146 min 74°F 72°F1013 hPa
QPTR1 - 8454049 - Quonset Point, RI 31 mi146 min W 6 G 7 74°F 71°F1012.7 hPa
NWPR1 - 8452660 - Newport, RI 34 mi146 min SSW 1 G 1.9
NAXR1 - Narragansett Bay Reserve, RI 36 mi71 min W 4.1 70°F 1013 hPa63°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 36 mi146 min WSW 2.9 G 2.9 71°F 1013.2 hPa
PRUR1 37 mi146 min 71°F 66°F
CPTR1 - 8452944 - Conimicut Light, RI 38 mi146 min 75°F 74°F1012.2 hPa
PVDR1 38 mi146 min W 2.9 G 4.1 77°F 1012.7 hPa63°F
FOXR1 - 8454000 - Providence, RI 39 mi146 min NW 5.1 G 7 77°F 68°F1012.6 hPa
44039 - Central Long Island Sound 43 mi116 min W 3.9 G 3.9 76°F 76°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 45 mi146 min SSW 5.1 G 6 76°F 1012.6 hPa
FRXM3 45 mi146 min 75°F 72°F
FRVM3 - 8447386 - Fall River, MA 46 mi146 min 76°F 75°F1012.8 hPa

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, CT10 mi60 minN 05.00 miFog/Mist68°F67°F96%1012.8 hPa
Westerly, Westerly State Airport, RI12 mi63 minN 06.00 miFog/Mist65°F65°F100%1012.9 hPa
Willimantic, Windham Airport, CT23 mi64 minN 04.00 miFog/Mist65°F63°F93%1013.3 hPa

Link to 5 minute data for KGON

Wind History from GON (wind in knots)
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Last 24hrCalmCalmCalmW3CalmCalmNW5S6S6S7SW7SW11SW8SW8W5SW7W6SW5CalmCalmCalmCalmSW3Calm
1 day agoSE5S4SE5S6S5SW11SW9SW9S13S13S8SW6SW8SW12SW8SW15
G19
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2 days agoN4CalmN8N4CalmN3N7S4S3S6S8S10S10S9SE8S6S8S6SE6S3CalmCalmS3SE4

Tide / Current Tables for Norwich, Connecticut
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Norwich
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Tue -- 12:25 AM EDT     3.68 feet High Tide
Tue -- 05:38 AM EDT     Sunrise
Tue -- 07:11 AM EDT     0.10 feet Low Tide
Tue -- 09:20 AM EDT     Moonset
Tue -- 12:59 PM EDT     3.34 feet High Tide
Tue -- 07:32 PM EDT     0.38 feet Low Tide
Tue -- 08:10 PM EDT     Sunset
Tue -- 10:39 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.63.63.22.61.91.10.50.10.311.82.63.13.33.12.72.11.50.90.50.411.82.5

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
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Tue -- 02:19 AM EDT     -0.01 knots Slack
Tue -- 05:24 AM EDT     -3.49 knots Max Ebb
Tue -- 05:39 AM EDT     Sunrise
Tue -- 08:42 AM EDT     0.00 knots Slack
Tue -- 09:20 AM EDT     Moonset
Tue -- 11:33 AM EDT     2.99 knots Max Flood
Tue -- 02:53 PM EDT     -0.00 knots Slack
Tue -- 05:50 PM EDT     -3.10 knots Max Ebb
Tue -- 08:09 PM EDT     Sunset
Tue -- 09:03 PM EDT     0.00 knots Slack
Tue -- 10:39 PM EDT     Moonrise
Tue -- 11:51 PM EDT     2.75 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.71.90.5-1.1-2.6-3.4-3.3-2.5-1.10.522.92.92.31.3-0.2-1.7-2.8-3.1-2.6-1.5-0.11.42.5

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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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