Tuesday, March28, 2017 L-36.com


Marine Weather and Tides
Greenport, NY

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:36AMSunset 7:13PM Tuesday March 28, 2017 7:28 PM EDT (23:28 UTC) Moonrise 7:11AMMoonset 7:59PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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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ANZ340 Peconic And Gardiners Bays- 426 Pm Edt Tue Mar 28 2017
Tonight..N winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. Rain likely with patchy fog. Vsby 1 to 3 nm.
Wed..N winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft.
Wed night..N winds 15 to 20 kt with gusts up to 25 kt. Waves 1 to 2 ft.
Thu..N winds 10 to 15 kt with gusts up to 20 kt...becoming nw around 5 kt in the afternoon. Waves 1 to 2 ft in the morning... Then 1 ft or less.
Thu night..SW winds around 5 kt...becoming se after midnight. Waves 1 ft or less.
Fri..E winds 5 to 10 kt...becoming se 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 ft or less...then 1 to 2 ft in the afternoon. Rain likely.
Fri night..E winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. Rain.
Sat..N winds 10 to 15 kt...diminishing to 5 to 10 kt after midnight. Waves 1 to 2 ft. Rain likely in the morning...then chance of rain at night.
Sun..N winds 5 to 10 kt...becoming nw. Waves 1 ft or less.
ANZ300 426 Pm Edt Tue Mar 28 2017
Synopsis for long island waters and new york harbor.. A stationary front will remain to the south this evening. Low pressure will then move along the front and pass just to the south this evening...and to the east late tonight. High pressure will then build in on Thursday...then move east Thursday night. Low pressure approaching from the central states will impact the region Thursday night into Saturday. High pressure will build in on Sunday.

7 Day Forecast for Marine Location Near Greenport, NY
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location: 41.1, -72.37     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 282017
afdokx
area forecast discussion
national weather service new york ny
417 pm edt Tue mar 28 2017

Synopsis
A stationary front will remain to the south this evening. Low
pressure will then move along the front and pass just to the
south this evening. High pressure will then build in late
tonight into Thursday, then move east Thursday night. Low
pressure approaching from the central states will impact the
region Thursday night into Saturday. High pressure will build in
on Sunday and Monday. Another disturbance may affect the area
next Tuesday.

Near term /until 6 am Wednesday morning/
Radar shows most of the rain ATTM is to the north/east of nyc.

However, as low pressure over the mid atlantic region starts to
take shape south of long island, expect rain to fill back in
over the region with passage of the associated upper trough and
developing h7-8 layer frontogenesis NW of the sfc low. Air mass
has stabilized aloft so do not expect any thunder. Fog should be
limited to the higher elevations.

Used a guidance blend for lows tonight, with lower 40s invof
nyc, upper 30s most elsewhere, and isolated mid 30s well inland.

Short term /6 am Wednesday morning through Wednesday night/
Dry weather with a northwesterly breeze. Despite a cooler deep
layer air mass in place, sfc temperatures will actually be
warmer than Tuesday because of deep mixing. Mostly sunny skies
are progged, with some fair weather CU especially NW of nyc.

Took the high side of guidance for temps, with mid/upper 50s
most places, and upper 40s/lower 50s in the higher elevations.

Guidance may be underdone by quite a bit on winds for wed
evening as low pressure off to the east intensifies. Model
soundings out east show winds 35-40 kt atop the mixed layer.

Trended forecast higher, with gusts up to 25 lasting until about
midnight.

Lows should be in the mid 30s INVOF nyc, lower 30s along the
coastlines and in the nyc suburbs, and 25-30 elsewhere.

Long term /Thursday through Tuesday/
High pressure builds in for Thursday, then moves offshore Thursday
night. High temperatures on Thursday will be in the low to mid 50s.

Clouds will increase Thursday night as warm advection begins to move
in ahead of an approaching low pressure system. Expect periods of
rain starting Thursday night into Saturday. Some lingering cold air
across the northern portions of our CWA Thursday night may result in
a mix of snow and rain before warm advection increases. So have kept
the mix of snow and rain inland. High temperatures on Friday and
Saturday will be in the mid 40s to around 50.

Canadian high pressure builds in for late Saturday night into
Monday. Another disturbance may approach for Tuesday. Temperatures
during this period will be in the mid to upper 50s which is near
normal for this time of year.

Aviation /20z Tuesday through Sunday/
A couple of fronts remains near the region through this
evening. A cold front pushes across the region overnight. High
pressure then builds into the region on Wednesday.

Ifr or less continues through at least 06z in low stratus, fog
and periods of rain. Winds will generally be less than 10kt from
the east-northeast.

After 06z, a cold front will push across the region, with winds
becoming northerly, then northwesterly and increasing to
10-15kt by 12z Wednesday. At this time, conditions will
gradually improve toVFR with mostly clear skies for Wednesday.

Ny metro enhanced aviation weather support...

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

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44039 - Central Long Island Sound 15 mi58 min E 12 G 16 40°F 2 ft
LDLC3 - New London Ledge CT - Ledge Light Weather 21 mi28 min E 12 G 13 41°F 39°F
NLNC3 - 8461490 - New London, CT 23 mi40 min NE 2.9 G 4.1 43°F 40°F1012.7 hPa
NWHC3 - 8465705 - New Haven, CT 31 mi40 min ENE 5.1 G 6 44°F 40°F1012.9 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 33 mi38 min 41°F 42°F5 ft1011.8 hPa (-0.8)41°F
BRHC3 - 8467150 - Bridgeport, CT 43 mi40 min ESE 1.9 G 2.9 41°F 1012.4 hPa

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
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N3
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N7
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NE1
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E2
SE2
SE8
G11
E7
G11
SE5
SE6
NE3
G6
NW3
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G10
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G7
NE2
G9
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G8
1 day
ago
E7
G12
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G12
E5
G11
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G8
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NE4
NE2
G6
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G8
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G8
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E2
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SW1
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G7
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S1
G4
2 days
ago
NE2
G5
N2
G6
NE3
N2
G5
NE3
G6
N1
--
NE3
N4
N3
N4
N4
G7
N3
G9
N4
G7
NE5
G10
NE3
G7
E4
G10
NE2
G5
NE2
G5
SE10
G14
E11
G16
E11
G15
E10
G14
E5
G10

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT23 mi32 minENE 710.00 miOvercast44°F41°F89%1012.7 hPa
The Gabreski Airport, NY23 mi35 minENE 810.00 miLight Rain41°F39°F93%1012.7 hPa
Montauk, Montauk Airport, NY24 mi34 minVar 6 mi41°F39°F96%1012.9 hPa

Wind History from SNC (wind in knots)
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Last 24hrNW7NW9NW7
G14
NW6NW11NW10N8NW10
G16
6
G18
NW8
G16
NW13
G25
NW11
G18
W10
G18
NW7
G15
NW8CalmCalmNW5CalmCalmCalmCalmCalmCalm
1 day agoW5NW12
G19
W8W6
G14
W9
G18
NW17
G24
NW20
G33
NW19
G33
NW22
G35
NW28
G42
NW18
G35
NW23
G34
NW14
G32
NW15
G30
NW16
G26
NW18
G27
NW11
G27
NW11
G20
NW10
G19
NW11
G18
NW14
G19
NW14
G21
N10NW8
2 days agoNW5N4CalmSW5CalmNW4NW464--3
G10
6SW8SW8
G13
SW6SW4W5W3N6NW5N4--W5W4

Tide / Current Tables for Greenport, Shelter Island Sound, New York
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Greenport
Click for Map
Tue -- 05:19 AM EDT     -0.41 feet Low Tide
Tue -- 06:39 AM EDT     Sunrise
Tue -- 07:10 AM EDT     Moonrise
Tue -- 11:23 AM EDT     2.77 feet High Tide
Tue -- 05:34 PM EDT     -0.30 feet Low Tide
Tue -- 07:10 PM EDT     Sunset
Tue -- 07:58 PM EDT     Moonset
Tue -- 11:42 PM EDT     3.03 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.72.21.50.70.1-0.4-0.30.31.21.92.52.72.72.31.60.90.3-0.2-0.30.21.122.63

Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
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Shinnecock Canal
Click for Map
Tue -- 01:13 AM EDT     -1.92 knots Max Ebb
Tue -- 04:40 AM EDT     0.00 knots Slack
Tue -- 06:39 AM EDT     Sunrise
Tue -- 07:09 AM EDT     1.77 knots Max Flood
Tue -- 07:11 AM EDT     Moonrise
Tue -- 10:19 AM EDT     -0.00 knots Slack
Tue -- 01:35 PM EDT     -1.92 knots Max Ebb
Tue -- 04:56 PM EDT     0.00 knots Slack
Tue -- 07:11 PM EDT     Sunset
Tue -- 07:31 PM EDT     1.89 knots Max Flood
Tue -- 07:59 PM EDT     Moonset
Tue -- 10:45 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.6-1.9-1.8-1.2-0.60.31.31.81.61.20.3-0.7-1.4-1.8-1.9-1.4-0.70.11.11.81.81.50.8-0.3

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for New York City/Upton, NY (19,4,5,8)
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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 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.