Friday, July28, 2017 L-36.com


Marine Weather and Tides
West Hampton Dunes, 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 5:43AMSunset 8:12PM Friday July 28, 2017 1:01 PM EDT (17:01 UTC) Moonrise 11:24AMMoonset 11:27PM Illumination 26% 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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ANZ345 South Shore Bays From Jones Inlet Through Shinnecock Bay- 1031 Am Edt Fri Jul 28 2017
.gale watch in effect from Saturday morning through late Saturday night...
Today..NE winds around 5 kt, becoming se this afternoon. Waves 1 ft or less.
Tonight..E winds 5 to 10 kt, becoming ne 10 to 15 kt after midnight. Waves 1 ft or less. Chance of rain in the evening, then rain after midnight. Vsby 1 to 3 nm.
Sat..NE winds 15 to 20 kt with gusts up to 35 kt. Waves around 2 ft. Rain likely, mainly in the morning with vsby 1 to 3 nm.
Sat night..NE winds around 15 kt with gusts up to 35 kt. Waves around 2 ft. Chance of rain in the evening.
Sun..NE winds around 15 kt with gusts up to 25 kt, becoming E 5 to 10 kt in the afternoon. Waves around 2 ft in the morning, then 1 ft or less.
Sun night..E winds around 10 kt, becoming ne after midnight. Waves 1 ft or less.
Mon..N winds 10 to 15 kt. Waves around 2 ft, then 1 ft or less.
Tue..N winds 5 to 10 kt, becoming sw. Waves 1 ft or less.
ANZ300 1031 Am Edt Fri Jul 28 2017
Synopsis for the long island waters and new york harbor.. Low pressure developing across the ohio valley today will pass south of the waters during the day on Saturday, and then well east of the waters Saturday night. High pressure builds to the northwest Sunday through Tuesday. Meanwhile, another low tracks south of the waters Monday.

7 Day Forecast for Marine Location Near West Hampton Dunes, NY
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location: 40.78, -72.69     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 281519
afdokx
area forecast discussion
national weather service new york ny
1119 am edt Fri jul 28 2017

Synopsis
A weak cold front stalls just south of the region this morning.

Low pressure developing over the ohio valley rides along this
front, passing south of long island on Saturday. Another wave
of low pressure moves along the stalled frontal boundary Monday,
south of the region. High pressure builds to the northwest
Sunday through Wednesday. The high weakens Thursday as a cold
front approaches from the northwest.

Near term until 6 pm this evening
The area remains in between systems today, as a weak cold front
settles south of the area and a shortwave diving out of the
upper midwest induces surface low development over the ohio
valley by this evening.

Expect the majority of the daylight hours to remain dry with
high temperatures near normal for late july, in the low to mid
80s. Clouds will move across from low to high levels but
coverage will not be too much and clouds themselves will not be
too thick to allow for partial Sun for most places.

A sea breeze has developed along the south shore of long island
as conveyed by a line of cumulus developing along a boundary in
that location. Temperatures increased slightly compared to
previous forecast but still have values in the low 80s for most
locations and mid 80s for the greater nyc metro area.

Short term 6 pm this evening through 6 pm Saturday
As the developing surface low emerges off the DELMARVA coast
this evening and rides northeast along the stalled frontal
boundary, rain will overspread the area from southwest to
northeast around or shortly after sunset. Models continue to
indicate that the heaviest rainfall will be focused south of the
area, with a tight precipitation gradient on the northern edge
of the system. With this in mind, lowered QPF amounts for the
entire region. However, any northward adjustment in the track
of the low would bring higher rainfall totals back into the
local area. With precipitable water values expected to be in the
1.5-2 inch range, such a scenario would also increase the
flooding threat.

Rain begins to taper off late Saturday morning, although the
weather will remain somewhat unsettled overall as the upper
trough lingers over the area. In addition, wind gusts of 25-35
mph are possible on Saturday as the low passes south of the
area. With plenty of cloud cover, temperatures during the day on
Saturday will remain below normal, generally in the 70s.

Long term Saturday night through Thursday
An upper trough will remain along the eastern sea board Saturday
night into Tuesday as energy rotates through the trough, and an
upper level jet remains on the eastern side. The trough moves
little as a western atlantic ridge remains in place.

Some uncertainty remains with the forecast Saturday night into
Sunday as the trend has been for the low to track farther south with
the latest model runs. Currently the precipitation will be winding
down Saturday night as the low moves south and east of the region.

Another low is expected to develop across the mid atlantic region
late Sunday night into Monday and also track south and east. Again,
there is uncertainty as to where this low will track. Currently
precipitation will be possible, east of new york city, Sunday night
into Monday night.

The upper trough does weaken Monday night into Tuesday as the flow
until Wednesday night into Thursday when another shortwave rotates
into the northern flow and re amplifies the trough along the coast.

At the surface high pressure builds to the northwest Monday night
and Tuesday, then weakens as a cold front develops in response to
the digging shortwave, and brings a cold front to northwest of the
area during Thursday. Will mention thunder ahead of the cold front
as the area become marginally unstable.

Aviation 15z Friday through Tuesday
Low pressure develops over the central appalachians this
afternoon, tracking to the mid-atlantic coast tonight.

GenerallyVFR through this evening with linger MVFR at long
island terminals through 16z.

Sea breeze beginning to develop along long island and
connecticut coasts. Winds will veer to the SE 10 kt or less this
afternoon, first at kjfk, kisp, kbdr, and kgon, and then
gradually move inland through the afternoon. The sea breeze
will stay south of kswf. Winds back to the NE and diminish this
evening.

Timing of onset of -ra and lowering flight categories overnight
continues to remain uncertain.

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
44069 22 mi62 min S 5.8 G 7.8 74°F 78°F72°F
44039 - Central Long Island Sound 25 mi107 min S 1.9 G 3.9 74°F 71°F
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 35 mi72 min 73°F 73°F2 ft1011.6 hPa (+0.0)73°F
NWHC3 - 8465705 - New Haven, CT 37 mi44 min SSW 8.9 G 9.9 75°F 75°F1011.2 hPa
BRHC3 - 8467150 - Bridgeport, CT 38 mi44 min S 9.9 G 12
44025 - LONG ISLAND 33 NM South of Islip, NY 44 mi72 min SE 5.8 G 5.8 74°F 75°F2 ft1010.6 hPa (+0.0)
44040 - Western Long Island Sound 49 mi47 min ESE 3.9 G 5.8 75°F 69°F
LDLC3 - New London Ledge CT - Ledge Light Weather 49 mi47 min S 8 G 8.9 73°F 1010.4 hPa67°F

Wind History for New Haven, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Gabreski Airport, NY5 mi69 minVar 310.00 miOvercast79°F69°F72%1011.5 hPa
Shirley, Brookhaven Airport, NY9 mi66 minESE 310.00 miPartly Cloudy82°F69°F65%1011.1 hPa
Islip, Long Island Mac Arthur Airport, NY22 mi66 minS 410.00 miOvercast80°F69°F69%1010.8 hPa

Wind History from FOK (wind in knots)
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Last 24hrSW11SW10S8SW6SW4SW6SW6SW8SW7SW7SW6SW64S3CalmCalmCalmCalmCalmN7N5N43SE5
1 day agoSE6535S6SW6S4CalmS3S3CalmCalmCalmCalmCalmCalmCalmCalmCalmSW7SW6SW9
G17
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2 days agoN7N5N7NE6NE6E4E3E3CalmNE7CalmCalmCalmN3CalmCalmCalmNW4N4N44NE8SE5SE7

Tide / Current Tables for Moriches Coast Guard Station, Long Island, New York
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Moriches Coast Guard Station
Click for Map
Fri -- 05:43 AM EDT     Sunrise
Fri -- 07:12 AM EDT     0.01 feet Low Tide
Fri -- 11:23 AM EDT     Moonrise
Fri -- 12:26 PM EDT     2.43 feet High Tide
Fri -- 07:32 PM EDT     0.36 feet Low Tide
Fri -- 08:10 PM EDT     Sunset
Fri -- 11:27 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.31.91.40.90.50.200.20.71.422.42.42.11.71.30.90.60.40.40.81.41.9

Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
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Shinnecock Canal
Click for Map
Fri -- 01:32 AM EDT     -0.00 knots Slack
Fri -- 04:43 AM EDT     -1.72 knots Max Ebb
Fri -- 05:42 AM EDT     Sunrise
Fri -- 08:25 AM EDT     0.00 knots Slack
Fri -- 11:08 AM EDT     1.44 knots Max Flood
Fri -- 11:22 AM EDT     Moonrise
Fri -- 02:04 PM EDT     -0.00 knots Slack
Fri -- 05:10 PM EDT     -1.49 knots Max Ebb
Fri -- 08:09 PM EDT     Sunset
Fri -- 08:50 PM EDT     0.00 knots Slack
Fri -- 11:23 PM EDT     1.31 knots Max Flood
Fri -- 11:26 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.5-0.4-1.1-1.6-1.7-1.4-1-0.40.51.21.41.40.90.1-0.7-1.2-1.5-1.4-1-0.60.10.91.3

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 (13,3,4,5)
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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 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.