Friday, May26, 2017 L-36.com


Marine Weather and Tides
Great River, NY

Version 3.4
What's New / NOTES
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 5:24AMSunset 8:15PM Friday May 26, 2017 10:25 PM EDT (02:25 UTC) Moonrise 6:26AMMoonset 9:13PM 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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ANZ345 South Shore Bays From Jones Inlet Through Shinnecock Bay- 1015 Pm Edt Fri May 26 2017
Overnight..NW winds 5 to 10 kt. Waves 1 ft or less.
Sat..N winds 5 to 10 kt...becoming sw in the afternoon. Waves 1 ft or less.
Sat night..S winds around 5 kt. Waves 1 ft or less.
Sun..SE winds 5 to 10 kt. Waves 1 ft or less.
Sun night..SE winds 5 to 10 kt. Waves 1 ft or less. Chance of showers after midnight.
Mon..SE winds 10 to 15 kt...diminishing to 5 to 10 kt in the afternoon. Waves 1 ft or less. Chance of showers. Chance of tstms in the afternoon.
Mon night..E winds 5 to 10 kt...becoming ne after midnight. Waves 1 ft or less. Chance of tstms in the evening. Chance of showers.
Tue..E winds around 5 kt...becoming sw. Waves 1 ft or less...then around 2 ft.
Wed..W winds 5 to 10 kt. Waves 1 ft or less...then around 2 ft in the afternoon and evening, then 1 ft or less after midnight. Winds and waves higher in and near tstms.
ANZ300 1015 Pm Edt Fri May 26 2017
Synopsis for long island waters and new york harbor.. Low pressure departs the new england coast tonight as weak high pressure settles over the waters. A weak wave of low pressure passes to the south Saturday into Saturday night. A series of weak lows or troughs of low pressure move through the area Sunday through Wednesday.

7 Day Forecast for Marine Location Near Great River, NY
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location: 40.72, -73.15     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 270009
afdokx
area forecast discussion
national weather service new york ny
809 pm edt Fri may 26 2017

Synopsis
Low pressure departs the new england coast tonight as weak high
pressure settles over the region. A weak wave of low pressure
passes to the south Saturday into Saturday night. A series a weak
waves of low pressure or troughs will move through the northeast
Sunday through Thursday. A cold front is expected to move
through the region Friday.

Near term until 6 am Saturday morning
Only real change to the forecast this eve was to track the area
of showers moving across SE ct and eastern li. Have increased
pops to cat as a result. Once these move out between 01z and
02z... Things will dry out due to the loss of heating and a
defined source for lift. Otherwise... Only minor adjustments to
winds t TD and sky were needed.

Heights aloft will continue to rise tonight as low pressure
continues to depart the new england coast. Clouds will dissipate
somewhat, but there is enough low level moisture for at least partly
cloudy skies overnight.

Lows will range from the lower 50s inland to the middle and upper
50s near the coast.

Short term 6 am Saturday morning through Saturday night
Main concern for Saturday is with a convectively induced shortwave
that is currently located over the upper mississippi river valley.

Models have not been handling this energy very well as depicted with
dprog dt at h5. However, it appears they are beginning to handle
this feature better with just some timing differences overall. The
shortwave is forecast to quickly traverse through the ohio valley
tonight and then towards the region on Saturday. Prefer to follow a
blend of the nam, 3-km NAM and ecmwf, which brings the shortwave
offshore late afternoon and early evening. The gfs, gefs, and cmc
are a bit slower and do not bring it offshore until overnight
Saturday. Have elected to go with slight chance pops, mainly
for the western half of the area, as better lift and moisture
appears to pass to the south of the region.

Otherwise, mostly cloudy skies are expected with high temperatures
around 70 in nyc and middle and upper 60s elsewhere.

Clouds gradually decrease Saturday night as ridging builds aloft.

Lows will be near normal.

Long term Sunday through Friday
With a delay in the timing of the northern stream longwave
trough and the shortwave rotating through the base of the trough
have delayed the probabilities of showers until late in the day
Sunday; and mainly across the far west and southwest zones.

Aloft, an upper ridge axis will still be west of the region at
12z Sunday with heights rising until the afternoon. At the
surface a weak high will be moving off the coast. Then as the
shortwave moves into the region probabilities increase Sunday
night into Monday. At the surface the will be weak forcing as a
weak cold front moves into the region. A thermal ridge also
moves into the area Monday afternoon. Monday may be one of the
warmer days of next week. With weak surface based instability,
and increasing aloft along with increasing CAPE will have
thunderstorms Monday afternoon into the evening. There is still
some uncertainty with the timing of the upper trough and
shortwave for Sunday and Monday.

The closed upper low and longwave trough will be slow to move
east through the week as a series of shortwaves rotate through
the trough, while at the surface weak lows, or troughs move
through the area. There remains a lot of uncertainty with the
timing and placement of the systems through the upcoming week.

And, there will be a prolonged period of unsettled weather. Will
carry slight chance to low chance probabilities through the
week, although there may be periods of dry weather.

Aviation 20z Friday through Wednesday
Low pressure near nova scotia will move slowly east tonight through
Saturday. Weak high pressure builds into the terminals Saturday.

Vfr. A few isolated showers are possible Saturday afternoon from the
nyc terminals and west and south, withVFR conditions.

Nw wind diminish late tonight and remain less than 10 kt into
Saturday morning. Sea breezes develop Saturday afternoon.

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
44069 4 mi55 min NW 14 G 18 68°F 63°F56°F
44040 - Western Long Island Sound 28 mi40 min WNW 9.7 G 14 65°F 1 ft55°F
BRHC3 - 8467150 - Bridgeport, CT 31 mi37 min N 6 G 8.9 63°F 1006.8 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 32 mi35 min W 12 G 16 60°F 56°F5 ft1006.6 hPa (+2.6)
44022 - Execution Rocks 33 mi25 min 66°F 54°F
KPTN6 - 8516945 - Kings Point, NY 33 mi37 min N 13 G 19 66°F 59°F1007.7 hPa
44065 - Entrance to New York Harbor 38 mi35 min W 14 G 16 63°F 57°F4 ft1007.4 hPa (+2.9)56°F
NWHC3 - 8465705 - New Haven, CT 41 mi37 min N 8.9 G 14 63°F 60°F1007.3 hPa
BATN6 - 8518750 - The Battery, NY 46 mi37 min 68°F 59°F1007.8 hPa
SDHN4 - 8531680 - Sandy Hook, NJ 49 mi37 min WNW 13 G 15 64°F 60°F1007.2 hPa
ROBN4 - 8530973 - Robins Reef, NJ 49 mi37 min NNW 12 G 19 69°F 1008.4 hPa

Wind History for Bridgeport, CT
(wind in knots)    EDIT      (on/off)   Help
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Last
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NE5
G8
NE6
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G14
NE7
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E3
NE4
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G14
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G17
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G20
NE6
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G22
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G24
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SW3
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NE2
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G13
SE9
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G12
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G7

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Islip, Long Island Mac Arthur Airport, NY6 mi89 minNW 1010.00 miMostly Cloudy70°F54°F57%1005.6 hPa
Farmingdale - Republic Airport, NY14 mi32 minNNW 810.00 miFair67°F53°F61%1007.5 hPa
Shirley, Brookhaven Airport, NY17 mi29 minN 410.00 miFair62°F59°F90%1007.4 hPa

Wind History from ISP (wind in knots)
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Last 24hrNE9NE8NE6N10NE13NE11N8N7NW11NW9
G16
NW11W8W7W11
G19
W13
G20
NW12NW17
G21
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NW10W9
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NW13NW10N6
1 day agoE6E9E8E12
G19
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G19
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G17
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G18
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2 days agoW3CalmNE3SE4CalmCalmE4NE5E5NE5N8NE10NE10N7NE11
G17
NE13E14
G19
SE9SE6SE9SE9E9E9E9

Tide / Current Tables for Great River, Connetquot River, Long Island, New York
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Great River
Click for Map
Fri -- 05:26 AM EDT     Sunrise
Fri -- 06:26 AM EDT     Moonrise
Fri -- 06:38 AM EDT     -0.13 feet Low Tide
Fri -- 12:17 PM EDT     0.83 feet High Tide
Fri -- 06:42 PM EDT     -0.09 feet Low Tide
Fri -- 08:13 PM EDT     Sunset
Fri -- 09:13 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.90.70.40.20-0.1-0.100.30.50.70.80.80.70.40.20.1-0.1-0.100.30.60.8

Tide / Current Tables for Fire Island Radiobeacon, Long Island, New York
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Fire Island Radiobeacon
Click for Map
Fri -- 04:28 AM EDT     -0.13 feet Low Tide
Fri -- 05:27 AM EDT     Sunrise
Fri -- 06:27 AM EDT     Moonrise
Fri -- 09:44 AM EDT     0.83 feet High Tide
Fri -- 04:32 PM EDT     -0.09 feet Low Tide
Fri -- 08:13 PM EDT     Sunset
Fri -- 09:13 PM EDT     Moonset
Fri -- 10:00 PM EDT     0.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.40.2-0-0.1-0.10.10.40.60.80.80.70.60.40.20-0.1-0.10.10.40.70.910.9

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 (22,6,7,8)
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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.