Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Mattituck, NY

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 5:53AMSunset 7:43PM Wednesday April 25, 2018 9:59 PM EDT (01:59 UTC) Moonrise 3:05PMMoonset 3:52AM Illumination 82% Phase: Waxing Gibbous; Moon at 11 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- 715 Pm Edt Wed Apr 25 2018
.dense fog advisory in effect until 6 am edt Thursday...
Tonight..S winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Showers, mainly this evening. Vsby less than 1 nm.
Thu..W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Areas of fog early in the morning with vsby 1 to 3 nm.
Thu night..W winds 10 to 15 kt with gusts up to 20 kt, becoming S around 5 kt after midnight. Seas 2 to 3 ft.
Fri..SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Chance of rain in the morning, then rain likely in the afternoon. Vsby 1 to 3 nm.
Fri night..SE winds 10 to 15 kt with gusts up to 20 kt, becoming sw 5 to 10 kt after midnight. Seas around 2 ft. Chance of rain in the evening, then chance of showers after midnight.
Sat..SW winds 5 to 10 kt. Seas 1 ft or less.
Sat night..SW winds around 10 kt, becoming nw after midnight. Seas around 2 ft in the evening, then 1 ft or less.
Sun..NW winds 10 to 15 kt. Seas around 2 ft.
Sun night..NW winds 10 to 15 kt. Seas around 2 ft in the evening, then 1 ft or less.
Mon..W winds around 10 kt. Seas around 2 ft.
Mon night..W winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 ft or less.
ANZ300 715 Pm Edt Wed Apr 25 2018
Synopsis for the long island waters and new york harbor.. Low pressure over the delmarva region will ride up across the area tonight, with a trailing cold front also passing through late. The low will move into new england on Thursday. Another low will move through on Friday, followed by a cold frontal passage late Saturday. High pressure will then be in control early to mid next week.

7 Day Forecast for Marine Location Near Mattituck, NY
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location: 41.02, -72.56     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 260150
afdokx
area forecast discussion
national weather service new york ny
950 pm edt Wed apr 25 2018

Synopsis
Low pressure over the DELMARVA region will ride up across the
area tonight, with a trailing cold front also passing through
late. The low will move into new england on Thursday. Another
low will move through on Friday, followed by a cold frontal
passage late Saturday. High pressure will then be in control
early to mid next week.

Near term until 6 am Thursday morning
Showers are still likely for the late evening hours across
eastern LI and SE ct as moisture continues to stream north ahead
of a cold front. Expecting at least a chance of showers
elsewhere as this front slowly pushes east through the tri-state
area. Cannot rule out an isolated thunderstorm with some
elevated instability and lift. Will continue to address patchy
dense fog with spss for now. Best chances of widespread dense
fog would have been eastern LI and ct as these spots will be
last to have the cold front passage, however showers here have
been mixing out dense fog as they pass through. Still cannot
rule out the need for an advisory for these eastern zones as
winds will be light with a lack of turbulent mixing at the top
of the boundary layer.

Light winds aloft could lead to slow-moving heavy downpours, but
this so far would appear to remain offshore to our south - just
something to keep an eye on until the cold front moves through.

Fcst low temps tonight are on the warmer side of the mos
envelope, in the upper 40s and lower 50s.

Short term 6 am Thursday morning through Thursday night
Gusty wnw flow expected along with mostly sunny skies for the
most part after the mid level shortwave passes through. A closed
mid level low passing just to the north may help provide enough
lift for sct-bkn CU development in the afternoon, more so
inland.

With downslope flow and mixing to between 875-850 mb expect
high temps to approach 70 in NE nj and rise well into the 60s
most elsewhere.

Thu night should start mostly clear, then become mostly cloudy
overnight as another low begins to approach from the sw. Low
temps should be in the 40s and lower 50s per MOS blend.

Long term Friday through Wednesday
Models in good agreement with the closed low over the central
plains tracking eastward through the deep south on Thursday.

This then lifts north toward the region Friday ahead of the next
northern stream trough digging into the mississippi river
valley on Thursday. At the surface, associated low pressure
lifts northeast towards the region on Friday. This is a
progressive system, with what looks like a quick hit of moderate
rain (1 4 to 3 4 inch, locally 1 inch). Still uncertainty on
where the axis of the heaviest rain will be, due to differences
in track of low pressure and consequently placement of best
lift instability axis.

Models then in general agreement with partial phasing of the
southern energy and digging northern stream trough to develop
a deep trough over the great lakes into the NE us this weekend.

Some spread in intensity amplitude of this trough, but general
consensus on its axis moving through Sunday. At the surface, an
associated cold front moves through late Sat sat evening, with a
couple of weak troughs moving through Sunday. Seasonable temps
on Saturday in WAA ahead of the front, dropping back down to a
few degrees below seasonable on Sunday with cold pool and
instability cloud cover.

In its wake, deep layered ridging builds in for early next week,
with potential for unseasonable warmth by midweek as ridging
takes a bermuda position. Temps moderate to seasonable on Monday
and then above seasonable on Tuesday. Potential for the first
real warm spell of the season mid to late week, with high temps
in the 80s for nyc nj metro and interior, and well into the 70s
along the coast.

Aviation 02z Thursday through Monday
Low pressure tracks from the mid-atlantic coast this evening to
the canadian maritime provinces by early Thursday evening.

Ifr or less through at least 07z. Light rain drizzle continues
through then, with some pockets of moderate rain possible.

Outside of times when areas receive moderate rain, expect
widespread fog to develop this evening. Conditions should
improve to MVFR 8-11z from W to e, then toVFR from 10-13z from
w to E as well.

Light and variable winds into the early morning hours. Winds
become w-wnw 8-11z from W to e. Wind speeds increase to 10-15kt
during the morning push, with gusts of 15-20kt developing
towards the end of the morning push. Winds back to the wsw-sw at
kjfk and kisp Thursday afternoon, remaining W to wnw elsewhere.

Wind gusts should abate late Thursday afternoon early Thursday
evening.

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 10 mi59 min ESE 5.8 G 5.8 51°F 1 ft
NWHC3 - 8465705 - New Haven, CT 26 mi41 min ESE 1.9 G 4.1 56°F 49°F1005.1 hPa
MTKN6 - 8510560 - Montauk, NY 32 mi41 min 52°F 44°F1005.8 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 32 mi124 min SSE 7 G 9.9 55°F 54°F
NLNC3 - 8461490 - New London, CT 34 mi41 min S 4.1 G 7 54°F 45°F1005.6 hPa
BRHC3 - 8467150 - Bridgeport, CT 35 mi47 min ENE 4.1 G 7 54°F 47°F1004.3 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 35 mi69 min S 14 G 16 50°F 44°F12 ft1005.6 hPa (-0.7)50°F

Wind History for New Haven, CT
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Gabreski Airport, NY13 mi66 minSSE 60.50 miFog54°F52°F93%1005.7 hPa
Shirley, Brookhaven Airport, NY21 mi63 minSSE 70.50 miFog54°F54°F100%1005.2 hPa

Wind History from FOK (wind in knots)
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Last 24hrE5E8E7
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1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS7S9S10S10
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2 days agoCalmCalmCalmCalmCalmCalmN5CalmCalmCalmNE6E8E11SE11SE10
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E9E9S8SE7S7S6CalmCalm

Tide / Current Tables for Mattituck Inlet, Long Island Sound, New York
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Mattituck Inlet
Click for Map
Wed -- 02:13 AM EDT     0.12 feet Low Tide
Wed -- 03:51 AM EDT     Moonset
Wed -- 05:56 AM EDT     Sunrise
Wed -- 08:24 AM EDT     5.47 feet High Tide
Wed -- 02:40 PM EDT     -0.06 feet Low Tide
Wed -- 03:04 PM EDT     Moonrise
Wed -- 07:40 PM EDT     Sunset
Wed -- 08:54 PM EDT     5.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.80.70.10.31.12.33.54.75.45.34.53.52.210.1-00.61.62.94.25.35.75.24.2

Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
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Shinnecock Canal
Click for Map
Wed -- 12:22 AM EDT     0.00 knots Slack
Wed -- 03:04 AM EDT     1.40 knots Max Flood
Wed -- 03:51 AM EDT     Moonset
Wed -- 05:56 AM EDT     Sunrise
Wed -- 06:09 AM EDT     -0.00 knots Slack
Wed -- 09:24 AM EDT     -1.67 knots Max Ebb
Wed -- 12:59 PM EDT     0.00 knots Slack
Wed -- 03:04 PM EDT     Moonrise
Wed -- 03:54 PM EDT     1.39 knots Max Flood
Wed -- 06:41 PM EDT     -0.00 knots Slack
Wed -- 07:40 PM EDT     Sunset
Wed -- 09:50 PM EDT     -1.62 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.30.61.21.41.30.90.1-0.6-1.2-1.6-1.6-1.3-0.800.91.31.41.20.6-0.2-0.9-1.5-1.6-1.4

Weather Map and Satellite Images
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wmap_A
GOES 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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New York City/Upton, NY (21,6,7,8)
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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.