Tuesday, January21, 2020
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Marine Weather and Tides
Niantic, CT

Version 3.4
NOTICE
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 7:07AMSunset 4:51PM Tuesday January 21, 2020 3:44 PM EST (20:44 UTC) Moonrise 5:23AMMoonset 2:59PM Illumination 12% Phase: Waning Crescent; Moon at 26 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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ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 328 Pm Est Tue Jan 21 2020
Tonight..N winds 5 to 10 kt. Seas 1 ft or less.
Wed..NW winds around 5 kt, becoming W around 5 kt in the afternoon. Seas 1 ft or less.
Wed night..W winds around 5 kt. Seas 1 ft or less.
Thu..W winds around 5 kt. Seas 1 ft or less.
Thu night..SW winds around 5 kt, becoming nw after midnight. Seas 1 ft or less.
Fri..NE winds 5 to 10 kt. Seas 1 ft or less.
Fri night..NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 ft or less, then 2 to 3 ft after midnight.
Sat..E winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Chance of rain and sleet in the morning, then rain likely in the afternoon.
Sat night..E winds 15 to 20 kt, becoming se 10 to 15 kt after midnight. Seas 2 to 4 ft. Rain. Vsby 1 to 3 nm after midnight.
Sun..W winds 5 to 10 kt, becoming nw in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon. Rain and snow likely in the morning, then chance of rain in the afternoon. Vsby 1 to 3 nm in the morning.
Sun night..NW winds 10 to 15 kt. Seas 2 to 3 ft. Chance of rain and snow in the evening. Vsby 1 to 3 nm.
ANZ300 328 Pm Est Tue Jan 21 2020
Synopsis for the long island waters and new york harbor.. High pressure remains over the waters through Thursday, then retreats to the north on Friday. Low pressure will likely impact the waters this weekend.


7 Day Forecast for Marine Location Near Niantic, CT
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location: 41.23, -72.24     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 211731 AFDOKX

Area Forecast Discussion National Weather Service New York NY 1231 PM EST Tue Jan 21 2020

SYNOPSIS. A large high pressure system covering the eastern two thirds of the nation will build over the area through Thursday, then retreat to the north on Friday. Low pressure will impact the region this weekend.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Only minor adjustments were made to the forecast today to account for current conditions.

A 1040 high remains centered over the mid Mississippi/Ohio river valleys this morning. The high will continue to build towards the area today with winds diminishing. Temperatures very similar to yesterday, with highs around 30. The NBM was used with local adjustments. Clear to start, but some high clouds currently over the nrn Great Lakes begin to move into the lower Hudson Valley this morning, and then across much of the region by evening.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM WEDNESDAY/. Some high clouds at times tonight, otherwise dry and continued cold with lows mainly in the teens and single digits. A blend of the MET/MAV was used. Light winds 5 kt or less overnight. The high builds over the area on Wednesday, with light winds and mostly sunny skies. Some cirrus possible at times. Increasing heights but a lack of deep mixing will keep highs in the 30s.

LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/. High pressure will remain in control resulting in dry weather with moderating temperatures as upper level ridging builds into the northeast. High temperatures on Thursday and Friday will be above normal, reaching the lower to middle 40s.

High pressure will retreat on Friday as a system over the midwest tracks towards the region Friday night. There is good agreement among medium range guidance showing an upper low lifting northeast from the Mississippi Valley with a surface low developing across the Mid Atlantic. Precipitation will overspread the area slowly late Friday night into Saturday morning. While there is good agreement in regards to timing and track of the system, there remains uncertainties regarding precip type especially this far out. The track and timing of the developing surface low will be key in deciding the precipitation type. Quicker development of the surface low would supply colder air at the low levels translating to more wintry precip. Have kept a mainly plain rain event with the possibility of some wintry precip away from Long Island.

The upper low then tracks towards the Mid Atlantic Saturday and over the region on Sunday which could keep clouds and precipitation in the forecast through the day. The upper low will then move east of the area early next week.

Temperatures Saturday through Monday will average slightly above normal.

AVIATION /18Z TUESDAY THROUGH SUNDAY/. High pressure builds from the west through tonight and remains in control on Wednesday.

VFR. Winds fluctuate between WNW and NNW with speeds around 10 kt or less. Winds diminish to 5 kt or less tonight, becoming light and variable at many outlying terminals.

NY Metro Enhanced Aviation Weather Support .

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

KJFK TAF Comments: No unscheduled amendments expected.

KLGA TAF Comments: No unscheduled amendments expected.

KEWR TAF Comments: No unscheduled amendments expected.

KTEB TAF Comments: No unscheduled amendments expected.

KHPN TAF Comments: No unscheduled amendments expected.

KISP TAF Comments: No unscheduled amendments expected.

OUTLOOK FOR 18Z WEDNESDAY THROUGH SUNDAY. Wednesday afternoon-Friday night. VFR. Saturday-Saturday night. MVFR/IFR in developing rain, possibly mixed across the interior. E winds 10-15G15-25 kt. Sunday. MVFR/IFR possible in lingering showers. Rain/snow mix possible in any showers across the interior.

MARINE. Seas on the ocean were slightly higher than forecast, and will continue to subside in the northerly flow.

With high pressure in control through Thursday, winds and seas will remain below SCA criteria.

Ocean seas will gradually build late Thursday night through Friday as a system passes offshore. Seas continue to build on Saturday as low pressure develops. Winds will also increase to SCA levels by Saturday.

HYDROLOGY. A widespread precipitation event is becoming likely this weekend. Precipitation amounts remain uncertain at this time therefore it is still too early to determine what impacts may occur.

EQUIPMENT. NYC NOAA Weather Radio Station KWO35 (162.55 MHz) is still operating at reduced power.

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

SYNOPSIS . NEAR TERM . SHORT TERM . LONG TERM . CB AVIATION . FEB MARINE . HYDROLOGY . EQUIPMENT .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LDLC3 - New London Ledge CT - Ledge Light Weather 10 mi50 min N 6 G 11 29°F 1025.1 hPa3°F
NLNC3 - 8461490 - New London, CT 12 mi57 min N 1.9 G 4.1 41°F1028.5 hPa
MTKN6 - 8510560 - Montauk, NY 19 mi57 min 38°F1029 hPa
NWHC3 - 8465705 - New Haven, CT 36 mi57 min N 6 G 9.9 31°F 37°F1028.5 hPa

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT12 mi49 minN 410.00 miFair29°F1°F31%1028.6 hPa
Chester, Chester Airport, CT18 mi3.2 hrsNNW 810.00 miFair27°F1°F33%1028.8 hPa
Montauk, Montauk Airport, NY20 mi51 minN 4 mi29°F5°F36%1029.1 hPa

Link to 5 minute data for KGON

Wind History from GON (wind in knots)
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Last 24hrN13NW12NW7NW8NW9NW6NW6NW7NW7NW7NW7NW5NW5N7N9N4N6N11N11N7N7N7N6N4
1 day agoNW8NW14NW11NW10NW9N6NW11NW13
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2 days agoE3NE6E6SW15S14S16S10NW4W3W6W13W9
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W11W8W4W5NW7NW11W13
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G23

Tide / Current Tables for Plum Gut Harbor, Plum Island, Long Island, New York
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Tue -- 02:17 AM EST     0.00 knots Slack
Tue -- 04:21 AM EST     Moonrise
Tue -- 05:18 AM EST     2.79 knots Max Flood
Tue -- 07:08 AM EST     Sunrise
Tue -- 08:35 AM EST     -0.00 knots Slack
Tue -- 11:42 AM EST     -3.34 knots Max Ebb
Tue -- 01:58 PM EST     Moonset
Tue -- 03:09 PM EST     0.00 knots Slack
Tue -- 04:50 PM EST     Sunset
Tue -- 06:04 PM EST     2.59 knots Max Flood
Tue -- 09:13 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.5-1.6-0.412.22.82.720.9-0.7-2.2-3.1-3.3-2.8-1.7-0.21.32.32.62.41.60.3-1.2-2.3

Weather Map
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wmap_A
GEOS Local Image of Northeast    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
Wind Forecast for New York City/Upton, NY (15,3,4,5)
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Ground Weather Radar Station Upton, NY
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weather_mapweather_map weather_map

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Disclaimer:
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.