Friday, September18, 2020
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Marine Weather and Tides
Norwich, CT

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:31AMSunset 6:53PM Friday September 18, 2020 8:01 PM EDT (00:01 UTC) Moonrise 7:43AMMoonset 7:58PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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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ANZ237 Block Island Sound- 716 Pm Edt Fri Sep 18 2020
.small craft advisory in effect through Sunday evening...
Tonight..N winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft.
Sat..N winds 15 to 20 kt, becoming ne 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft.
Sat night..NE winds around 10 kt, becoming N 15 to 20 kt after midnight. Seas 3 to 5 ft.
Sun..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft.
Sun night..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft.
Mon..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft.
Mon night..NE winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 8 ft.
Tue and Tue night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft.
Wed and Wed night..W winds 10 to 15 kt. Gusts up to 20 kt. Seas 2 to 4 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 716 Pm Edt Fri Sep 18 2020
Synopsis for massachusetts and rhode island coastal waters.. High pressure brings cool and dry air for the weekend. Gusty northeast winds and rough seas will continue through the weekend. Hurricane teddy will move north into the maritimes by Tuesday, passing well east of the southern new england waters. Teddy will bring the potential for gale force north to northeast winds, as well as seas building to between 10 and 15 plus feet across our eastern waters. This may result in dangerous conditions for mariners who should keep posted on the latest weather forecasts. Winds and seas will diminish Wednesday as teddy moves off to the north. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.


7 Day Forecast for Marine Location Near Norwich, CT
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location: 41.52, -72.08     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 182334 AFDOKX

Area Forecast Discussion National Weather Service New York NY 734 PM EDT Fri Sep 18 2020

SYNOPSIS. High pressure builds into the region from the northwest tonight and through the weekend. The high will gradually weaken and shift south and west of the area by mid week, while tropical cyclone Teddy approaches the Canadian Maritimes. A frontal system moves into the area late in the week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/. High pressure over the Great Lakes builds east tonight with a dry, unseasonably cool airmass working into the region overnight. Northerly winds will remain gusty with a relatively tight pressure gradient between the departing frontal system and the strong high building in.

Gusty winds tonight will prevent substantial radiative cooling even under dry conditions and clear skies. Low temperatures will drop into the 40s for much of the area with localized spots in the middle to upper 30s for northern portions of the Lower Hudson Valley and Northern Fairfield County in CT. It is possible there may be areas of patchy frost in the coldest of spots.

SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/. Gusty winds during the morning on Saturday should diminish gradually through the late morning and afternoon as the high pressure builds overhead. Clear skies and dry conditions will persist through the day and through Saturday night.

With winds diminishing, clear skies, and dry conditions, Saturday night may be a better radiative cooling night with low temperatures in the 40s. Some spots in the northern interior counties may drop into the 30s with patchy frost possible again.

There is a moderate rip current risk on Saturday due to a building northerly wind wave of 5-6 ft and a l-2 long period SE swell from distant hurricane Teddy. The risk may become high toward evening. Swells will continue to build Saturday night into Sunday with a high rip current risk developing.

LONG TERM /SUNDAY THROUGH FRIDAY/. Strong high pressure over the Northeast at the onset of the period will begin to weaken and shift south and west of the area Tuesday into Wednesday. Global models are in very good agreement with sending an upper trough across the Northeast Sunday and offshore Sunday night. The latter of which will interact with Hurricane Teddy, east of New England, steering the system toward the Canadian Maritimes Tuesday into Wednesday.

Forecast area would be far enough removed from the system to not see any direct impacts other than gusty NW winds. Refer to the latest official forecasts from NHC for updates.

A late week frontal system will then bring a low chance of showers to the area Thursday night into Friday.

Before then though, the area will reside in NE flow Sunday through Monday which at times will gusts up to 20 mph, especially near the coast. Winds then back to the NW on Tuesday and even more westerly by mid week.

Under mainly clear skies, temperatures will be close to 10 degrees below normal for the last couple of days of summer before rebounding back to near or above normal by mid week.

High surf, beach erosion, and beach flooding are likely Sunday into Tuesday. Refer to Tides/Coastal Flooding section below for additional details. There will be a high rip current risk through at least Tuesday.

AVIATION /00Z SATURDAY THROUGH WEDNESDAY/. High pressure builds into the region through the TAF period.

VFR. Winds N mainly at 10 to 15 kt, gusting to 20 kt at most of the the city and coastal terminals. Outlying terminals lose gusts late tonight and early Saturday morning. N winds continue into Saturday, and gradually diminish later in the day.

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

Gusts could be only occasional at times through tonight. Some uncertainty on Saturday as to how late in the day any gusts will persist.

OUTLOOK FOR 0Z SUNDAY THROUGH WEDNESDAY. Saturday Night. VFR, N-NE winds up to 10kt. Sunday and Monday. VFR. NE winds gusts around 20kt, mainly during the daytime, and highest along the coast. Tuesday and Wednesday. VFR. NW winds gusts 20-25 kt.

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

MARINE. A persistent NE flow and swells from Teddy will result in building seas on the ocean and gusts near SCA criteria from Saturday through Tuesday. Seas will begin to slowly subside mid week.

FIRE WEATHER. Northerly wind gusts up to 20 to 25 mph on Saturday morning combined with low RH values approaching 30% in the afternoon will allow for the enhanced spread of any fire.

Similar conditions will be possible Sunday, though the winds will be lighter.

HYDROLOGY. No hydrological concerns are anticipated through the entire forecast period.

TIDES/COASTAL FLOODING. Widespread dune erosion and scattered overwashes expected for the ocean beachfront Sunday into Monday . Numerous tidal cycles of minor coastal flooding expected for the south shore bays of W LI, Lower NY/NJ harbor, SW CT, and S Westchester Tonight through Sunday, possibly though early next week .

Astronomical tides continue to run high associated with a recent new moon, with a persistent NNE flow through Monday and tidal piling allowing for 1/2 to 1 1/2 ft of surge.

Primary concern is the combination of elevated water levels and incoming energetic swells from Teddy building to our shores Saturday Night into Monday. This is expected to develop high surf of 8-12 ft Sunday into Monday, which combined with elevated water levels during the times of high tide will likely result in significant and widespread erosion and damage to dune structures. In addition, scattered overwashes are likely, resulting in minor to moderate flooding of roadways and vulnerable structures behind protective dunes. This is depicted in the NOAA/USGS Coastal Change Forecast Viewer, which is showing potential for an erosion and overwash event close to what was seen the October 10th 2019 Nor'easter and possibly during Hurricane Jose swell event.

In terms of the coastal flood threat, minor coastal flooding is expected along the south shore back bays of Nassau and Queens for this evening's high tide cycle. The widespread minor coastal flooding threat will expand during the Saturday morning/afternoon high tides into the lower NY/NJ harbor and SW CT, S Westchester as well. A similar threat likely for Sunday morning high tides. Brief and localized minor flooding likely for the night time high tides Sat Night and Sun Night.

A similar coastal flood threat is likely to at least continue into the Monday and Tuesday daytime high tidal cycles as Hurricane Teddy makes it closest approach, with potential for moderate coastal flood impacts along vulnerable Great South Bay and areas as energetic swells from Teddy restrict tidal drainage.

OKX WATCHES/WARNINGS/ADVISORIES. CT . Coastal Flood Advisory from noon to 2 PM EDT Saturday for CTZ009. Coastal Flood Advisory from 1 PM to 3 PM EDT Sunday for CTZ009. NY . Coastal Flood Advisory from noon to 2 PM EDT Saturday for NYZ071. Coastal Flood Advisory from 1 PM to 3 PM EDT Sunday for NYZ071. High Surf Advisory from 8 PM Saturday to 8 PM EDT Monday for NYZ080-081-178-179. Coastal Flood Advisory until midnight EDT tonight for NYZ178- 179. Coastal Flood Advisory from 8 AM to 1 PM EDT Saturday for NYZ074-075-178-179. Coastal Flood Advisory from 9 AM to 2 PM EDT Sunday for NYZ074- 075-178-179. NJ . Coastal Flood Advisory from 8 AM to 1 PM EDT Saturday for NJZ006-106-108. Coastal Flood Advisory from 9 AM to 2 PM EDT Sunday for NJZ006- 106-108. MARINE . Small Craft Advisory until 6 AM EDT Saturday for ANZ330-335- 338-340-345. Small Craft Advisory until 6 PM EDT Monday for ANZ350-353-355.

SYNOPSIS . DW/MW NEAR TERM . DW/MW SHORT TERM . MW LONG TERM . DW AVIATION . JE MARINE . DW/MW FIRE WEATHER . HYDROLOGY . DW/MW TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NLNC3 - 8461490 - New London, CT 11 mi44 min Calm G 4.1 63°F 69°F1015.5 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 15 mi37 min N 11 G 14 64°F 1010.6 hPa50°F
MTKN6 - 8510560 - Montauk, NY 33 mi44 min 64°F 69°F1015.6 hPa
QPTR1 - 8454049 - Quonset Point, RI 36 mi44 min NNE 13 G 15 64°F 69°F1015.8 hPa
NAXR1 - Narragansett Bay Reserve, RI 40 mi77 min ENE 8.9 63°F 1015 hPa50°F
NWPR1 - 8452660 - Newport, RI 40 mi44 min NE 7 G 9.9 62°F 67°F1015.5 hPa
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 40 mi44 min ENE 7 G 9.9 63°F 1016.3 hPa
CPTR1 - 8452944 - Conimicut Light, RI 41 mi44 min 62°F 69°F1015.8 hPa
FOXR1 - 8454000 - Providence, RI 41 mi44 min NE 8 G 12 64°F 67°F1015.9 hPa
PVDR1 41 mi44 min N 8.9 G 14 64°F 1016 hPa47°F
PRUR1 42 mi44 min 63°F 47°F
NWHC3 - 8465705 - New Haven, CT 47 mi44 min N 9.9 G 16 65°F 70°F1015.7 hPa
FRXM3 49 mi44 min 62°F 47°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, CT13 mi66 minN 710.00 miFair62°F48°F62%1015.2 hPa
Willimantic, Windham Airport, CT17 mi70 minN 510.00 miFair61°F48°F63%1015.7 hPa
Westerly, Westerly State Airport, RI19 mi69 minN 810.00 miMostly Cloudy63°F46°F56%1015.4 hPa
Chester, Chester Airport, CT24 mi87 minVar 510.00 miFair63°F50°F64%1015.6 hPa

Link to 5 minute data for KGON

Wind History from GON (wind in knots)
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Last 24hrCalmNW3CalmCalmN4NE3N6N8NE5N7N8N11N13N15
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1 day agoSW13SW13S13SW12SW11SW9SW9W10W9
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W4NE3N3CalmW456S7S7SW8SW8S6SW6SW3SE3
2 days agoCalmNE3NW3W3SW8NE4NE3SW10SW11SW10SW11SW13SW13SW15S15S12SW12SW11SW13SW11SW13SW14SW11SW14

Tide / Current Tables for Norwich, Connecticut
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Norwich
Click for Map
Fri -- 05:03 AM EDT     -0.15 feet Low Tide
Fri -- 06:32 AM EDT     Sunrise
Fri -- 07:43 AM EDT     Moonrise
Fri -- 10:45 AM EDT     4.16 feet High Tide
Fri -- 05:32 PM EDT     -0.27 feet Low Tide
Fri -- 06:51 PM EDT     Sunset
Fri -- 07:58 PM EDT     Moonset
Fri -- 11:12 PM EDT     3.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.42.51.60.80.2-0.20.21.12.33.444.13.8321.10.3-0.2-0.20.51.62.73.63.9

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Fri -- 12:21 AM EDT     -0.00 knots Slack
Fri -- 03:26 AM EDT     -4.05 knots Max Ebb
Fri -- 06:32 AM EDT     Sunrise
Fri -- 06:34 AM EDT     0.00 knots Slack
Fri -- 07:43 AM EDT     Moonrise
Fri -- 09:31 AM EDT     3.84 knots Max Flood
Fri -- 12:44 PM EDT     -0.00 knots Slack
Fri -- 03:51 PM EDT     -4.19 knots Max Ebb
Fri -- 06:51 PM EDT     Sunset
Fri -- 07:02 PM EDT     0.00 knots Slack
Fri -- 07:58 PM EDT     Moonset
Fri -- 09:56 PM EDT     3.78 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.7-1.2-2.9-3.9-3.9-2.8-1.10.82.63.73.72.81.3-0.5-2.4-3.8-4.2-3.5-2-0.11.83.33.83.2

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Boston, MA
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.