Friday, April20, 2018 L-36.com


Marine Weather and Tides
Waterford, CT

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:58AMSunset 7:35PM Friday April 20, 2018 4:26 PM EDT (20:26 UTC) Moonrise 9:38AMMoonset 12:00AM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 324 Pm Edt Fri Apr 20 2018
Tonight..NW winds 10 to 15 kt. Seas 1 ft or less.
Sat..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less.
Sat night..N winds 5 to 10 kt. Seas 1 ft or less.
Sun..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less.
Sun night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less.
Mon..N winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less.
Mon night..S winds 5 to 10 kt, becoming sw after midnight. Seas 1 ft or less.
Tue..S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 ft or less.
Tue night..SE winds 5 to 10 kt. Seas 1 ft or less. Chance of rain after midnight.
Wed..E winds 10 to 15 kt. Seas around 2 ft. Rain likely.
Wed night..E winds 10 to 15 kt, becoming ne 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Rain likely, mainly in the evening.
ANZ300 324 Pm Edt Fri Apr 20 2018
Synopsis for the long island waters and new york harbor.. High pressure builds in from the west through tonight and remains over the waters through Monday. A coastal low approaches from the southeastern seaboard Tuesday, and moves through Wednesday, and to the northeast of the area Thursday.

7 Day Forecast for Marine Location Near Waterford, CT
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location: 41.36, -72.1     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 201957
afdokx
area forecast discussion
national weather service new york ny
357 pm edt Fri apr 20 2018

Synopsis
High pressure builds in from the west through tonight, then
remains over the region into Monday. A coastal low will likely
affect the region the middle of next week.

Near term until 6 am Saturday morning
An upper longwave trough along the eastern canadian coast and
extending into the northeast remains through tonight with a
northwest cyclonic flow. Meanwhile surface low pressure along
the canadian coast tracks northeast as high pressure builds to
the west. The atmosphere will remain dry and cloud-free tonight.

Winds will be diminishing, and likely decouple late tonight.

This will allow for good radiational cooling with clear
conditions. Inland areas will likely see patchy to areas of
frost and included in the weather forecast. However, the spring
frost freeze program has not begun across these areas.

Short term 6 am Saturday morning through Saturday night
The upper trough remains across the northeast through Saturday
night as the center of the surface high builds into the
northeast. The weather will remain quiet and cloud free.

Cyclonic flow and weak cold advection continue through Saturday
night, however, the airmass will be modifying under full sun,
and highs Saturday will be approaching normal levels. Saturday
night will be cloud-free with light winds and again there will
be ideal radiational cool conditions. So, expect areas and
patchy frost inland.

Long term Sunday through Friday
Upper air pattern will very much resemble early springtime
as an upper low over the mississippi valley slowly works east
on the heels of a departing northern branch trough over the
northeast. Ridging both aloft and at the surface builds across
the region to start the week but then gives way to the
aforementioned southern branch close low. The system will lift
northward in response to a northern branch shortwave trough
moving into the upper midwest and great lakes, sending surface
low pressure up the eastern seaboard Tuesday into Wednesday.

Overrunning rains are forecast to develop across the area
Tuesday night and continue into Wednesday night. There are
some differences thereafter though with the global models as
the ecwmf is more progressive with this system and dries things
out for the end of week, while the GFS and ggem close off the
northern branch trough with unsettled conditions lingering until
a cold frontal passage Friday night. Thus, will maintain a
low chance of showers for the end of the week. The point to be
made here there is clearly uncertainty in the guidance for the
end of the week as northern branch shortwave energy dives
southeast across the upper midwest and great lakes region.

However, all the global models are pointing to amplification of
the ridge out west and the trough reestablishing itself across
the east by next weekend.

As for temperatures, much of the period will feature seasonable
temperatures with the exception of Wednesday, where onshore
flow will keep highs several degrees below normal.

Aviation 20z Friday through Wednesday
High pressure builds in from the west tonight through Saturday
morning, before settling over the region into Saturday afternoon
and evening.

Vfr through the TAF period.

Winds abate this evening, with speeds decreasing to around 10kt.

City and coastal terminals will lose their gusts shortly after 0z,
with inland terminals a few hours sooner. Winds will range around 10
kts late Saturday morning and afternoon. Wind direction will start
off NW on Saturday, before becoming more westerly towards the early
afternoon for the city terminals and some coastal terminals.

Ny metro enhanced aviation weather support...

detailed information, including hourly TAF wind component fcsts,
can be found at:
http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NLNC3 - 8461490 - New London, CT 1 mi38 min NW 8 G 13 53°F 44°F1019 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 4 mi31 min NW 15 G 22 51°F 24°F
MTKN6 - 8510560 - Montauk, NY 23 mi38 min 45°F 44°F1019.6 hPa
44039 - Central Long Island Sound 33 mi41 min WNW 14 G 16 46°F 2 ft
QPTR1 - 8454049 - Quonset Point, RI 40 mi44 min NW 8.9 G 17 52°F 44°F1018.2 hPa
NWPR1 - 8452660 - Newport, RI 42 mi38 min N 8.9 G 14 50°F 42°F1017.9 hPa
NWHC3 - 8465705 - New Haven, CT 43 mi38 min NW 15 G 20 49°F 45°F1020.7 hPa
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 45 mi38 min N 8 G 14 53°F 1018 hPa
NAXR1 - Narragansett Bay Reserve, RI 45 mi161 min NW 8.9 51°F 997 hPa29°F
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 46 mi36 min WNW 16 G 18 44°F 42°F3 ft1020.4 hPa (+0.9)32°F
CPTR1 - 8452944 - Conimicut Light, RI 47 mi38 min NW 20 G 22 50°F 46°F1017.7 hPa
FOXR1 - 8454000 - Providence, RI 48 mi38 min N 16 G 24 53°F 43°F1017.6 hPa
PVDR1 48 mi38 min NW 17 G 23 55°F 1018.2 hPa28°F

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
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Last
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N4
G10
NW6
N3
G10
NW3
G8
NW4
G8
NW6
G11
NW5
G13
NW4
G11
NW2
G5
NW4
G10
NW6
G11
NW2
G7
NW4
G11
NW5
G8
N4
G8
N10
G14
NW6
G14
N12
N8
G11
NW10
G14
N7
G12
N7
G19
NW6
G13
NW7
G11
1 day
ago
SW12
G17
SW11
G22
SW6
G12
W6
W3
W1
G4
SW3
G6
SW3
N1
N1
N4
--
--
NW1
N4
N2
N4
G10
N7
G10
NE4
G7
N1
G6
N3
N2
NW2
G8
NW5
G9
2 days
ago
SW10
G14
W5
G9
W9
G16
NW4
G12
W7
G14
W3
G6
W5
G11
W4
G7
W3
G10
W3
SW4
W5
W7
G10
W3
G7
W3
G7
W5
G11
W5
G11
NW6
G15
W8
G16
NW6
G12
W7
G12
NW7
G13
W10
G15
SW14
G17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT3 mi30 minWNW 10 G 2010.00 miA Few Clouds53°F27°F37%1019 hPa
Westerly, Westerly State Airport, RI16 mi33 minNW 10 G 1910.00 miPartly Cloudy54°F27°F35%1019 hPa
Chester, Chester Airport, CT22 mi31 minNNW 11 G 2610.00 miFair52°F24°F35%1019.6 hPa
Montauk, Montauk Airport, NY22 mi32 minW 8 mi51°F30°F46%1020 hPa

Wind History from GON (wind in knots)
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Last 24hrNW8W8W9NW7NW8NW12
G18
NW15
G24
NW10
G18
W7NW9NW11NW7NW12W11NW8NW15
G23
NW15
G24
NW16
G25
NW15
G21
NW10
G19
W15
G22
NW11
G24
NW12
G21
W10
G20
1 day agoSW18
G23
SW17
G20
W13W7W5SW6SW8W6W4N4NE3SE5SE4NW3N5NE8N6N9N10N8NE6NW5NW9NW9
2 days agoW18
G25
W9
G18
W10W12
G18
W14
G19
W6W10W10W11W6W6W9W10W8W7W13W12W13
G20
SW18
G23
W19
G23
SW17
G26
SW18
G26
SW18
G26
SW18
G22

Tide / Current Tables for New London, Thames River, Connecticut
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New London
Click for Map
Fri -- 12:59 AM EDT     3.29 feet High Tide
Fri -- 06:01 AM EDT     Sunrise
Fri -- 08:01 AM EDT     -0.19 feet Low Tide
Fri -- 09:37 AM EDT     Moonrise
Fri -- 01:37 PM EDT     2.55 feet High Tide
Fri -- 07:34 PM EDT     Sunset
Fri -- 08:04 PM EDT     0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.13.33.12.621.30.60.1-0.20.10.81.62.22.52.52.31.81.30.80.50.30.51.12

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Fri -- 03:06 AM EDT     -0.00 knots Slack
Fri -- 06:01 AM EDT     Sunrise
Fri -- 06:23 AM EDT     -3.58 knots Max Ebb
Fri -- 09:38 AM EDT     Moonrise
Fri -- 09:38 AM EDT     0.01 knots Slack
Fri -- 12:30 PM EDT     2.97 knots Max Flood
Fri -- 03:45 PM EDT     -0.00 knots Slack
Fri -- 06:49 PM EDT     -2.99 knots Max Ebb
Fri -- 07:33 PM EDT     Sunset
Fri -- 09:51 PM EDT     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.22.71.50.1-1.4-2.7-3.5-3.4-2.4-10.51.92.82.92.11-0.3-1.7-2.7-3-2.4-1.20.21.6

Weather Map and Satellite Images
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wmap_A
GOES 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
Wind Forecast for New York City/Upton, NY (16,3,4,5)
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Ground Weather Radar Station Boston, MA
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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 numerious 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.