Wednesday, August23, 2017 L-36.com


Marine Weather and Tides
North Haven, NY

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:05AMSunset 7:36PM Wednesday August 23, 2017 4:18 AM EDT (08:18 UTC) Moonrise 8:01AMMoonset 8:53PM Illumination 1% 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- 348 Am Edt Wed Aug 23 2017
Today..W winds 5 to 10 kt. Waves 1 ft or less. Chance of showers early this morning, then slight chance of showers late this morning.
Tonight..W winds around 5 kt, becoming N after midnight. Waves 1 ft or less.
Thu..NE winds 5 to 10 kt, becoming S in the afternoon. Waves 1 ft or less.
Thu night..W winds around 5 kt, becoming N after midnight. Waves 1 ft or less.
Fri..NW winds 5 to 10 kt. Waves 1 ft or less.
Fri night..NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Waves 1 ft or less, building to 1 to 2 ft after midnight.
Sat..NE winds 10 to 15 kt, becoming se around 5 kt in the afternoon. Waves subsiding to 1 ft or less.
Sat night..S winds 5 to 10 kt, becoming se after midnight. Waves 1 ft or less.
Sun..NE winds around 5 kt, becoming E in the afternoon. Waves 1 ft or less.
Sun night..E winds 5 to 10 kt. Waves 1 ft or less.
ANZ300 348 Am Edt Wed Aug 23 2017
Synopsis for the long island waters and new york harbor.. A cold front exits to the east this morning, followed by canadian high pressure building into the region through the weekend.

7 Day Forecast for Marine Location Near North Haven, NY
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location: 41.03, -72.27     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 230735
afdokx
area forecast discussion
national weather service new york ny
335 am edt Wed aug 23 2017

Synopsis
A cold front exits to the east this morning, followed by
canadian high pressure building into the region through the
weekend. Low pressure may impact the area during the middle of
next week.

Near term until 6 pm this evening
There should be a few lingering showers mainly over long island
early this morning, otherwise today should be mainly dry.

Negative vorticity advection (nva) from around 700-500 hpa in
the wake of a northern stream shortwave will be responsible for
causing the showers to come to an abrupt end.

The strong NVA will also result in a fairly rapid clearing of
the sky this morning as well.

With abundant sunshine this afternoon, highs should reach up to
5 degrees above normal, with the largest departures over eastern
zones. Highs should range from around 80 to the mid 80s across
most of the area.

There is a moderate rip current risk for Wednesday.

Short term 6 pm this evening through 6 pm Thursday
A mean trough builds into the eastern 1 3 of the country tonight
and Thursday, with the trough axis staying well to the west. At
this time no significant shortwaves are progged to be embedded
in the resultant SW flow aloft, so it should be dry tonight and
Thursday with minimal cloud cover.

With a mostly clear to clear sky and winds falling off to
generally 5 mph or less outside of urban areas, should see some
decent radiational cooling outside of urban areas. Lows should
range from near normal in the nyc metro to up to 5 degrees below
normal elsewhere. Lows into the 50s are expected outside of the
nyc metro, western long island and the immediate ct coast, where
60s are forecast.

Highs on Thursday will be around 5 degrees cooler than today,
mainly from the mid 70s to around 80.

Long term Thursday night through Tuesday
A broad area of canadian high pressure will build over the northeast
thru the weekend and into the beginning of next week. This will
produce fair weather with blw average temps. A blend of the guidance
was used which was in good agreement. Cyclonic flow aloft will
result in diurnal CU at times, and an isold shwr cannot be ruled
out. The exact coverage, placement and timing is too uncertain to
include anything in the fcst ATTM except for NRN orange county on
fri where there is a clustering of model output. A 15 pop was
included there.

The models are suggesting the development of low pres off the mid-
atlantic during the middle of next week. Both the 00z GFS and ecmwf
have something. A consensus of all the models was used for pcpn
potential, and pops were limited to the slight chance category due
to the time window being a week out with high uncertainty.

Aviation 07z Wednesday through Sunday
A cold front will move across the region this morning.

The bulk of the precipitation has come to an end, however there may
still be some left over lingering showers through 10-12z.

MainlyVFR conditions are being observed, however some MVFR to
locally ifr conditions may develop specially outside of the nyc
terminals until cold front passes.

Winds will gradually shift from the west-southwest to the northeast
as the front comes through. Some occasional gusts to around 20
kt may be possible at coastal terminals through 12z.

Northwest flow may be just strong enough to preclude seabreeze
development this afternoon. Otherwise...VFR.

Outlook for 06z Wednesday through Sunday
Wednesday night-Sunday Vfr.

Marine
The pressure gradient begins to relax today, with sustained
winds up to 15 kt and some isolated gusts up to 25 kt possible
on the coastal ocean waters. Seas on the coastal ocean waters
will diminish through the day, falling to below SCA levels W of
moriches inlet by 11 am and E of moriches inlet by 2pm. As a
result have left the small craft advisory (sca) on the coastal
ocean waters as is. With frequent wind gusts to 25 kt no longer
occurring on the non-ocean waters, have canceled the SCA there.

A light pressure gradient will set up over the waters by
tonight and continue on Thursday, with winds 10 kt or less.

Seas and waves will be below small craft levels as well tonight
and Thursday.

Wind and seas will remain below SCA levels Thursday night
through Sunday night.

Hydrology
It will be mainly dry today, then dry tonight through the
weekend.

Tides coastal flooding
Tides are running high astronomically. Water levels may again
approach minor flood levels across mainly the south shore bays
of long island and nyc with tonight's high tide, but high likely
will run a half a foot or so below minor flood benchmarks.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... Small craft advisory until 11 am edt this morning for anz353-
355.

Small craft advisory until 2 pm edt this afternoon for anz350.

Synopsis... Maloit jmc
near term... Maloit
short term... Maloit
long term... Jmc
aviation... Bc
marine... Maloit jmc
hydrology... Maloit jmc
tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MTKN6 - 8510560 - Montauk, NY 17 mi49 min 72°F 72°F1007.4 hPa
NLNC3 - 8461490 - New London, CT 25 mi49 min SW 6 G 8 74°F 71°F1006.3 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 26 mi89 min 74°F 72°F6 ft1008.2 hPa (-0.7)74°F
NWHC3 - 8465705 - New Haven, CT 38 mi49 min W 7 G 9.9 74°F 78°F1006.9 hPa
BRHC3 - 8467150 - Bridgeport, CT 49 mi49 min WSW 6 G 8.9 73°F 75°F1006.6 hPa
44069 49 mi64 min W 16 G 19 75°F 79°F75°F

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
Montauk, Montauk Airport, NY19 mi25 minSW 7 mi73°F72°F96%1007.7 hPa
The Gabreski Airport, NY23 mi26 minSW 79.00 miA Few Clouds72°F69°F91%1008.1 hPa
Groton / New London, Groton / New London Airport, CT24 mi83 minSW 88.00 miA Few Clouds73°F70°F90%1006.9 hPa

Wind History from MTP (wind in knots)
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Last 24hrSW5SW45SW6SW6SW8SW7--SW7SW6SW7
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SW7SW7SW7
1 day agoCalmCalmS3CalmCalm3W5W4W43SW3SW8SW5SW7SW7
G16
SW65SW8SW8
G14
SW6SW7SW745
2 days agoW5W7NW7NW5W5W6W8W9W9W8W8
G14
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G16
W8W6W6W6NW4NW3W3CalmCalmW3CalmCalm

Tide / Current Tables for Cedar Point, Long Island Sound, New York
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Cedar Point
Click for Map
Wed -- 05:42 AM EDT     -0.07 feet Low Tide
Wed -- 06:07 AM EDT     Sunrise
Wed -- 08:00 AM EDT     Moonrise
Wed -- 11:58 AM EDT     3.09 feet High Tide
Wed -- 06:04 PM EDT     0.02 feet Low Tide
Wed -- 07:35 PM EDT     Sunset
Wed -- 08:52 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.22.82.21.40.70.1-00.31.11.82.42.93.12.92.31.710.300.20.81.62.32.8

Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
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Shinnecock Canal
Click for Map
Wed -- 01:58 AM EDT     -1.99 knots Max Ebb
Wed -- 05:26 AM EDT     0.00 knots Slack
Wed -- 06:08 AM EDT     Sunrise
Wed -- 08:00 AM EDT     1.68 knots Max Flood
Wed -- 08:01 AM EDT     Moonrise
Wed -- 11:05 AM EDT     -0.00 knots Slack
Wed -- 02:18 PM EDT     -1.88 knots Max Ebb
Wed -- 05:43 PM EDT     0.00 knots Slack
Wed -- 07:36 PM EDT     Sunset
Wed -- 08:19 PM EDT     1.74 knots Max Flood
Wed -- 08:53 PM EDT     Moonset
Wed -- 11:30 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.1-1.7-2-1.7-1.2-0.50.61.51.71.510.1-0.8-1.5-1.9-1.8-1.3-0.70.31.31.71.71.30.5

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 (4,6,7,8)
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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.