Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Lloyd Harbor, NY

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:48AMSunset 7:11PM Thursday March 23, 2017 6:30 AM EDT (10:30 UTC) Moonrise 4:10AMMoonset 2:30PM Illumination 18% Phase: Waning Crescent; Moon at 25 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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ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 406 Am Edt Thu Mar 23 2017
Today..NW winds 10 to 15 kt. Gusts up to 20 kt early this morning. Seas 1 to 2 ft this morning...then 1 ft or less.
Tonight..W winds 5 to 10 kt...becoming sw after midnight. Seas 1 ft or less.
Fri..SW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Seas 1 to 2 ft. Chance of rain in the afternoon.
Fri night..SW winds 10 to 15 kt with gusts up to 20 kt... Diminishing to 5 to 10 kt after midnight. Seas 1 to 2 ft in the evening...then 1 ft or less.
Sat..SW winds 5 to 10 kt...becoming W in the afternoon. Seas 1 ft or less. Chance of light rain in the afternoon.
Sat night..NE winds 5 to 10 kt...increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 ft or less...then around 2 ft after midnight. Rain likely.
Sun..E winds 10 to 15 kt. Seas 2 to 3 ft. Rain likely.
Mon..NE winds 5 to 10 kt. Seas around 2 ft in the morning... Then 1 ft or less. Rain likely in the daytime...then chance of rain in the evening.
ANZ300 406 Am Edt Thu Mar 23 2017
Synopsis for long island waters and new york harbor.. High pressure builds today, and passes to the east tonight. A warm front moves across the region Friday. The warm front north of the region Friday night and Saturday will move back southwestward Saturday night into Sunday. A weak low develops along the front and the low and front eventually move east of the region by Monday night of next week.

7 Day Forecast for Marine Location Near Lloyd Harbor, NY
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location: 40.95, -73.49     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 230803
afdokx
area forecast discussion
national weather service new york ny
403 am edt Thu mar 23 2017

Synopsis
High pressure builds today, and passes to the east tonight. A
warm front moves across the region Friday. The warm front
north of the region Friday night and Saturday will move back
southwestward Saturday night into Sunday. A weak low develops
along the front and the low and front eventually move east of
the region by Monday night and Tuesday of next week. Another
cold front approaches for next Wednesday.

Near term /until 6 pm this evening/
The center of high pressure builds to our west, and passes to the
south this afternoon. Upper trough tracks further to the east.

A dry, chilly day is expected, with lighter NW winds than what was
observed yesterday. A few gusts are possible in the NW flow, but
winds will diminish this afternoon and back to the west as the high
tracks south.

Temperatures, after a cold start to the day, will rebound through
the 30s, but will peak about 10 degrees below normal, upper 30s to
lower 40s.

Plenty of sunshine is expected.

Short term /6 pm this evening through 6 pm Friday/
Upper ridge to the west flattens tonight and Friday as closed low
moves across the mid section of the country. Surface high pressure
passes east of the area.

A warm front then approaches Friday morning, with a weak shortwave
riding along the top of the ridge, passing across the area Friday.

Winds remain light tonight as they become variable or light s/sw.

With cold airmass in place, temperatures will fall into the 20s
and 30s as high clouds increase. Some locations may radiate
into the teens. Still quite cold.

Increasing moisture riding over the top of the flattening ridge will
approach Friday morning. Light precip associated with warm air
advection is anticipated. Expect a brief period of light
precipitation to push through, with higher coverage NW zones, and
less SE zones per model consensus.

As for ptype, this could be problematic. Depending on when precip
moves in, looks like shortly after 12z, a wintry mix is possible.

Snow, sleet and freezing rain is a good bet, especially away from
the coast. Again, depending on precip onset.

Temps near the coast should be warm enough for plain rain. Qpf
should be under a tenth of an inch, so this is not a big event. But,
slick travel is possible as sfc/road temps may be cold enough for
some light icing.

Long term /Friday night through Wednesday/
Mid levels transition from zonal flow Friday night through Saturday
night to ridging Sunday, which will be followed by an approaching
shortwave on the back end of the ridge. The axis of this trough
moves across on Monday. Behind this shortwave, more quasi-zonal flow
will be established. There will be a larger shortwave approaching
from the northwest for the middle of next week.

At the surface, Friday night through Saturday will be when the
region is in the warm sector. The warm front will be north of the
region. Then, the front will start to shift southwestward, coming
back through the region as a back door cold front Sunday. The front
will stay west of the region and high pressure will stay well east
of the region going through Sunday evening. For late Sunday night,
the front will slide back east with weak low pressure developing
along it. The weak low and front stay near the region Monday and
finally move east of the region Monday night and Tuesday. Another
cold front approaches for the middle of next week.

Overall, an unsettled weather pattern sets up leading to less
diurnal temperature range as the airmass becomes more maritime from
an increasing easterly flow with rounds of light to perhaps moderate
rain at times.

Temperatures are warmest on Saturday with area in the warm sector as
highs are forecast to range from the low 50s to low 60s. Sunday
looks to be the coolest day in the long term with a back door cold
front moving in as highs that day range from the low to mid 40s.

Lows at night through the long term are pretty consistent, in the
upper 30s to low 30s for a majority of the area.

Aviation /08z Thursday through Monday/
Vfr through the TAF period with a mainly clear sky.

Nw winds 15-20kt with gusts 25kt will slowly diminish overnight.

Gusts may die off for a short period for most terminals, with
the exception of the nyc terminals. Winds will pick up again
for a few hours late morning and early afternoon Thursday, then
likely drop off in the evening as high pressure settles across
the area.

Clouds increase late in the TAF period as low pressure passes north
of the region.

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
44040 - Western Long Island Sound 5 mi46 min WNW 7.8 G 12 24°F 10°F
KPTN6 - 8516945 - Kings Point, NY 17 mi43 min 9.9 G 12 24°F 37°F1033.5 hPa
BRHC3 - 8467150 - Bridgeport, CT 23 mi43 min WNW 1 G 2.9 20°F 1032.6 hPa
BATN6 - 8518750 - The Battery, NY 33 mi43 min 24°F 40°F1033.7 hPa
ROBN4 - 8530973 - Robins Reef, NJ 37 mi43 min NW 12 G 15 24°F 1034.2 hPa
NWHC3 - 8465705 - New Haven, CT 38 mi43 min NW 7 G 8.9 21°F 39°F1033 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 41 mi43 min 24°F 39°F1034.2 hPa
44065 - Entrance to New York Harbor 42 mi41 min NW 14 G 19 27°F 41°F2 ft1033.7 hPa (+1.8)11°F
MHRN6 42 mi43 min WNW 6 G 8
SDHN4 - 8531680 - Sandy Hook, NJ 43 mi43 min NW 13 G 15 24°F 39°F1033.3 hPa
44039 - Central Long Island Sound 46 mi61 min NNW 16 G 19 24°F 1 ft

Wind History for Kings Point, NY
(wind in knots)    EDIT      (on/off)   Help
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N21
G29
NW22
G32
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N29
G36
N27
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N25
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G30
N28
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G31
NE26
G34
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G31
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G28
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G32
N21
G26
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G25
N17
G23
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N12
G19
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1 day
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NW1
SW2
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N1
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W1
W8
W8
G11
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NW14
G17
NW7
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G11
NE4
N1
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N16
N20
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G21
2 days
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N14
G18
N17
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G17
N11
NE7
N9
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G12
N7
N4
NE3
N2
S3
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NW2
NW2
NW7
NW5
NW4
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NW4
NE1

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
White Plains - Westchester County Airport, NY15 mi95 minW 310.00 miFair20°F5°F52%1032.3 hPa
Farmingdale - Republic Airport, NY16 mi38 minW 510.00 miFair21°F7°F54%1033.6 hPa
Islip, Long Island Mac Arthur Airport, NY23 mi35 minNNW 1010.00 miFair22°F3°F44%1033 hPa
New York, La Guardia Airport, NY24 mi40 minWNW 1110.00 miFair26°F7°F44%1033.6 hPa

Wind History from HPN (wind in knots)
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Last 24hrNW17
G25
NW22
G34
NW22
G30
NW26
G38
NW28
G36
NW25
G34
NW24
G34
NW20
G37
NW25
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NW18
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NW24
G31
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NW15NW14NW16
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NW12NW13NW14
G21
NW12NW10NW7NW6W3W3
1 day agoNW4W3W5NW5NW5NW8NW7NW7NW7NW84W5NW10W5NW3NW5NW8NW4CalmNW6NW11NW13
G19
NW16
G26
NW23
G32
2 days agoNW11NW15N15NW14N14N11
G19
N10W11NW12NW14NW8W7NW4NW5NW4NW5NW7NW9NW7NW9NW7NW3W4NW5

Tide / Current Tables for Lloyd Harbor, Huntington Bay, Long Island, New York
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Lloyd Harbor
Click for Map
Thu -- 02:15 AM EDT     0.89 feet Low Tide
Thu -- 04:10 AM EDT     Moonrise
Thu -- 06:51 AM EDT     Sunrise
Thu -- 08:17 AM EDT     6.60 feet High Tide
Thu -- 02:30 PM EDT     Moonset
Thu -- 02:48 PM EDT     0.49 feet Low Tide
Thu -- 07:09 PM EDT     Sunset
Thu -- 08:51 PM EDT     6.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.41.40.91.12.13.54.866.66.45.64.32.91.70.80.51.12.43.95.26.26.564.9

Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
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Throg's Neck
Click for Map
Thu -- 02:51 AM EDT     0.88 knots Max Flood
Thu -- 04:11 AM EDT     Moonrise
Thu -- 05:46 AM EDT     -0.00 knots Slack
Thu -- 06:53 AM EDT     Sunrise
Thu -- 09:08 AM EDT     -0.60 knots Max Ebb
Thu -- 12:03 PM EDT     0.00 knots Slack
Thu -- 02:32 PM EDT     Moonset
Thu -- 03:16 PM EDT     0.88 knots Max Flood
Thu -- 06:06 PM EDT     -0.00 knots Slack
Thu -- 07:10 PM EDT     Sunset
Thu -- 09:32 PM EDT     -0.63 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
00.20.70.90.50.1-0-0.2-0.5-0.6-0.5-0.2-00.10.50.90.70.30-0.1-0.4-0.6-0.6-0.4

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 (6,6,7,8)
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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.