Tuesday, February20, 2018 L-36.com


Marine Weather and Tides
Greenport West, 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 6:35AMSunset 5:32PM Tuesday February 20, 2018 10:48 AM EST (15:48 UTC) Moonrise 10:16AMMoonset 11:30PM Illumination 28% 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- 1021 Am Est Tue Feb 20 2018
Today..SW winds around 10 kt. Seas 1 ft or less. Patchy fog. Vsby 1 to 3 nm.
Tonight..SW winds 5 to 10 kt. Seas 1 ft or less. Patchy drizzle. Areas of fog. Vsby less than 1 nm.
Wed..SW winds around 10 kt. Seas 1 ft or less. Patchy drizzle in the morning. Areas of fog in the morning, then patchy fog in the afternoon. Vsby less than 1 nm, increasing to 1 to 3 nm in the afternoon.
Wed night..W winds around 10 kt, becoming N after midnight. Seas 1 ft or less. Chance of showers in the evening.
Thu..NE winds 5 to 10 kt. Seas 1 ft or less. Chance of rain in the morning, then rain likely in the afternoon.
Thu night..NE winds 5 to 10 kt. Seas 1 ft or less. Chance of rain and sleet in the evening.
Fri..E winds around 10 kt. Seas 1 ft or less. Chance of rain in the afternoon.
Fri night..SE winds 5 to 10 kt, becoming sw after midnight. Seas 1 ft or less. Chance of rain in the evening. Patchy fog. Vsby 1 to 3 nm.
Sat..W winds around 5 kt. Seas 1 ft or less. Patchy fog in the morning. Chance of rain in the afternoon. Vsby 1 to 3 nm in the morning.
Sat night..NW winds around 5 kt, becoming ne after midnight. Seas 1 ft or less. Chance of rain.
ANZ300 1021 Am Est Tue Feb 20 2018
Synopsis for the long island waters and new york harbor.. A warm front moves north of the waters today. High pressure remains anchored over the western atlantic through mid week as a slow moving frontal system approaches from the mississippi valley into Wednesday. A cold front moves across Wednesday night. A series of lows will be moving through the northeast late this week into the weekend.

7 Day Forecast for Marine Location Near Greenport West, NY
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location: 41.1, -72.4     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 201537
afdokx
area forecast discussion
national weather service new york ny
1037 am est Tue feb 20 2018

Synopsis
A warm front moves north of the area today. High pressure remains
anchored over the western atlantic through mid week as a slow moving
frontal system approaches from the mississippi valley into
Wednesday. A cold front moves across Wednesday night. A series
of lows will be moving through the northeast late this week into
the weekend.

Near term through tonight
Visibilities have improved across the region with many locations
2 to 3 statute miles. Local spots across southern connecticut
and long island were still around 1 4 mile, however,
visibilities will be improving as mixing continues. Clearing
was occurring with low clouds mixing out with a high cirrus
deck. There remains some uncertainty as to how much clearing
will occur along the coast where the inversion will be strongest
from the cold ocean temperatures. Low clouds could hang on
there for much of the day.

An unseasonably warm air mass continues to move into the region
today as a warm front moves north of the region. The warmth
will be a result of an unusually strong ridge across the western
atlantic.

Short term Wednesday
Areas of fog and patchy drizzle are expected to redevelop from
se to NW across the region tonight. Uncertainty exists in the
extent coverage of the fog, but think dense fog is a
possibility. Will highlight this potential in the hwo. It will
be very mild for this time of year with temperatures only
falling into the upper 40s and lower 50s.

The warmest day of 2018 so far is expected on Wednesday. This
is when the ridge along the western atlantic is at its strongest
with heights around 595dam at its core, which is more typical
of what is seen during the late spring and summer. Height
anomalies across the eastern us are around 3 standard deviations
above normal for this time of year as well.

The day will start with fog and low clouds, but improvements should
occur after sunrise with strong heating and better mixing than on
Tuesday. Patchy fog and low clouds could persist into the afternoon
near the long island south shore and SE ct.

The forecast high for central park is 70 degrees, which is the
normal high temperature for early may! Record highs are once
again expected on Wednesday with forecast readings in the
middle 60s to lower 70s for most locations. Cooler temps in the
upper 50s and lower 60s can be expected near the coast.

Long term Wednesday night through Monday
An active weather pattern will last through the upcoming
weekend. A southeast ridge will help steer a series of low
pressure centers to our north, but associated warm and cold
fronts will provide lift and a focus for moisture convergence
around the tri-state area. While there will be chance for rain
for just about every day and night period from Wednesday night
through Sunday, it won't be raining most of this time. Looks
like the best overall chances occur Thursday afternoon, Friday,
and Sunday. Saturday could actually end up dry for everyone, but
will leave in lower-end chances for rain for now. Frozen pcpn
would be possible inland Thursday night into Friday morning as
an elevated layer of above-freezing temperatures coincide with
low-level cold air filtering in from the northeast. Looks too
warm for snow, so sleet and freezing rain would be possible.

Still, pops are on the lower side during this period. High
pressure then builds in from the west on Monday with dry
weather.

Temperatures through the long term will be above normal with highs
mostly in the mid 40s to lower 50s

Aviation 16z Tuesday through Saturday
A warm front lifts north of the terminals today as high
pressure remains anchored over the western atlantic.

Visibilities have improved for nyc terminals to ifr with coastal
terminals still at lifr. Gradual improvement will continue into
the afternoon for nyc nj and NW terminals, possibly improving to
vfr this afternoon. Coastal terminals may remain ifr all day
with little improvement. Improvement time could be forecast 1 to
2 hours too early. Lifr vlifr conditions likely to develop this
evening once again. These lower conditions continue all night.

S SW winds with gusts to 20 kt possible for kewr kteb klga kswf.

Late day S 15g20 kt coastal jet development possible for jfk
into lga. Elsewhere occasional SW gusts of 15 to 20 kt possible.

S SW winds subside to 10 kt or less this evening and continue
overnight.

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 14 mi48 min WSW 3.9 G 3.9 42°F
LDLC3 - New London Ledge CT - Ledge Light Weather 22 mi38 min WSW 8.9 G 9.9 44°F 1032.8 hPa43°F
NLNC3 - 8461490 - New London, CT 24 mi48 min SW 4.1 G 8.9 49°F 39°F1026.6 hPa (+0.0)
MTKN6 - 8510560 - Montauk, NY 24 mi48 min 47°F 39°F1027.2 hPa (+0.3)
NWHC3 - 8465705 - New Haven, CT 30 mi48 min SSW 7 G 8.9 45°F 39°F1027 hPa (+0.0)
BRHC3 - 8467150 - Bridgeport, CT 42 mi48 min WSW 4.1 G 8

Wind History for New London, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chester, Chester Airport, CT20 mi53 minSW 9 G 170.25 miFog52°F51°F100%1026.1 hPa
The Gabreski Airport, NY22 mi55 minSW 70.25 miFog48°F48°F100%1027.9 hPa
Groton / New London, Groton / New London Airport, CT24 mi52 minSSW 30.25 miFog47°F46°F97%1026.7 hPa

Wind History from SNC (wind in knots)
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546SW7SW8SW8SW9SW10
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1 day agoNW12
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N76N8NW4CalmN4CalmCalmN3Calm--CalmCalmSE4S5S3CalmS6S8S12
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2 days ago3S7SE7
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4--Calm4SE5CalmCalmCalmCalmCalmCalmCalmCalmCalmNW4NW8NW17
G29
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G27

Tide / Current Tables for Hashamomuck Beach, Long Island, New York
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Hashamomuck Beach
Click for Map
Tue -- 01:54 AM EST     4.51 feet High Tide
Tue -- 06:37 AM EST     Sunrise
Tue -- 07:59 AM EST     -0.06 feet Low Tide
Tue -- 09:16 AM EST     Moonrise
Tue -- 02:19 PM EST     4.29 feet High Tide
Tue -- 05:29 PM EST     Sunset
Tue -- 08:16 PM EST     -0.02 feet Low Tide
Tue -- 10:30 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.64.34.54.13.2210.2-0.10.212.13.13.94.34.13.42.31.30.400.10.81.8

Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
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Shinnecock Canal
Click for Map
Tue -- 12:11 AM EST     -0.00 knots Slack
Tue -- 03:16 AM EST     -1.54 knots Max Ebb
Tue -- 06:37 AM EST     Sunrise
Tue -- 06:49 AM EST     0.00 knots Slack
Tue -- 09:17 AM EST     Moonrise
Tue -- 09:24 AM EST     1.33 knots Max Flood
Tue -- 12:26 PM EST     -0.00 knots Slack
Tue -- 03:32 PM EST     -1.54 knots Max Ebb
Tue -- 05:30 PM EST     Sunset
Tue -- 07:06 PM EST     0.00 knots Slack
Tue -- 09:50 PM EST     1.44 knots Max Flood
Tue -- 10:30 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.7-1.3-1.5-1.4-1-0.40.10.81.31.20.90.4-0.5-1.2-1.5-1.5-1.1-0.6-0.10.61.21.41.2

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 (10,2,3,4)
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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.