Wednesday, January24, 2018 L-36.com


Marine Weather and Tides
Sag Harbor, 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 7:06AMSunset 4:59PM Wednesday January 24, 2018 12:39 AM EST (05:39 UTC) Moonrise 12:13PMMoonset 12:31AM Illumination 50% Phase: First Quarter Moon; Moon at 7 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- 1213 Am Est Wed Jan 24 2018
.small craft advisory in effect through this afternoon...
Overnight..W winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft.
Wed..W winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft.
Wed night..NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Thu..NW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft.
Thu night..NW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft.
Fri..NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Waves around 2 ft in the morning, then 1 ft or less.
Fri night..SW winds 5 to 10 kt. Waves 1 ft or less.
Sat..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves around 2 ft.
Sat night..SW winds 10 to 15 kt. Waves around 2 ft. Chance of rain.
Sun..SW winds 10 to 15 kt. Waves around 2 ft. Rain likely.
Sun night..SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Waves around 2 ft. Rain likely.
ANZ300 1213 Am Est Wed Jan 24 2018
Synopsis for the long island waters and new york harbor.. Low pressure over northern new england continues lifting into the canadian maritimes through today. High pressure builds in for the rest of the week, followed by a frontal system over the weekend.

7 Day Forecast for Marine Location Near Sag Harbor village, NY
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location: 41.02, -72.28     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 240519
afdokx
area forecast discussion
national weather service new york ny
1219 am est Wed jan 24 2018

Synopsis
Low pressure over northern new england continues lifting into
the canadian maritimes today. High pressure builds in for the
rest of the week, followed by a frontal system over the weekend.

The front will usher in colder air for the beginning of next
week.

Near term until 6 am this morning
Upper low and associated surface low continue to deepen while
lifting up into the canadian maritimes. Cold advection on the
backside of the system will usher in cooler air on gusty west
winds early this morning. Broken stratocu attempted to move into
the NW interior, has struggled to persist mainly due to
downsloping. Model soundings do show increasing moisture between
800 and 900 mb towards day break, so have followed a trend
towards a scattered to broken cloud deck at that time for the
western half of the area. There still is some uncertainty on the
extent of these clouds.

Lows will remain well above normal, in the lower to mid 30s,
but relatively cooler.

Short term 6 am this morning through 6 pm Thursday
A secondary cold front passes through in the morning. High pressure
will build east from the mid section of the country while low
pressure tracks northeast across the canadian maritimes.

Nearly seasonable weather will follow for Wednesday and
Wednesday night with continued cold advection and winds veering
to the nw. It will remain gusty during the daytime hours up to
about 25 mph, then diminish in the evening.

Highs will be slightly above normal in the upper 30s to lower
40s, with near normal lows ranging from the mid teens inland, to
the lower 20s at the coast.

Long term Thursday night through Tuesday
The 12z GFS and ECMWF are beginning to come together on a soln for
the weekend frontal sys. Because of this, a blend of the 2 models
was used for temps, with a broad blend of raw model data used for
pops. This breaks down to low chcs for lgt rain Sat aftn, with rain
chcs increasing Sat ngt and likely rain on sun. As the front comes
thru, there could be a quick changeover to snow, primarily away from
the coast, Sun ngt. The models however are still not very robust
with pcpn on the back side of the sys. For mon, the colder air flows
in with a chc for rain and snow shwrs into Mon ngt. Dry thereafter.

Otherwise, high pres builds in this Thu and fri. Dry wx was fcst as
a result. The superblend was used for temps except for Thu ngt due
to the position of the high. With lgt winds, the fcst there is a
blend of guidance to better capture radiational cooling, a few to
several degrees blw the superblend.

Aviation 06z Wednesday through Sunday
A secondary cold front approaches from the northwest early this
morning, then pushes southeast through the area by early
afternoon. Canadian high pressure then builds down from the
northwest into tonight.

Vfr through the TAF period.

W-wsw winds around 10-15kt early this morning, with some gusts to
around 20-25kt, mainly at city terminals. Winds then veer to the wnw
by mid morning with gusts 20-25kt. Winds veer to the NW by
early evening, with gusts abating mid-late evening.

Outlook for 06z Thursday through Sunday
Wednesday night-Thursday Vfr. NW winds g15-20kt possible.

Thursday night-Saturday Vfr. SW winds g15-25+kt possible Saturday.

Saturday night-Sunday MVFR or lower possible with showers. Llws
possible Saturday night. W-nw winds g20-30kt possible Sunday.

Marine
On the heels of a cold front passage, winds may briefly drop
this evening before strengthening again. SCA w-nw gusts in the
25 to 30 kt range are expected tonight into Wednesday on all
waters. Winds should gradually fall below SCA late Wednesday
into Wednesday night, with ocean seas following suit.

Winds and seas will creep up towards SCA lvls on Thu as low
pres deepens over the atlc. Winds and seas blw SCA lvls on fri,
then SW flow increases over the weekend ahead of a frontal sys,
with SCA cond likely Sat and Sun on the ocean, and possible
elsewhere.

Hydrology
No significant hydrologic issues are anticipated through next
week.

Equipment
Nyc NOAA weather radio station kwo-35 (162.55 mhz) is off the
air for an extended period of time.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... Small craft advisory until 6 pm est this evening for anz330-
335-338-340-345-350-353-355.

Synopsis... Jmc dw
near term... 24 dw
short term... Dw
long term... Jmc
aviation... Maloit
marine... Jmc 24 dw
hydrology... Jmc dw
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MTKN6 - 8510560 - Montauk, NY 17 mi52 min 43°F 37°F1004.2 hPa
44039 - Central Long Island Sound 21 mi70 min W 14 G 18 40°F 1 ft
NLNC3 - 8461490 - New London, CT 26 mi52 min W 4.1 G 6 45°F 38°F1004 hPa
NWHC3 - 8465705 - New Haven, CT 38 mi52 min W 7 G 9.9 43°F 37°F1005.5 hPa
BRHC3 - 8467150 - Bridgeport, CT 49 mi58 min WSW 4.1 G 7 43°F 36°F1005.2 hPa

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, NY20 mi1.8 hrsW 10 G 18 mi46°F35°F66%1004.3 hPa
The Gabreski Airport, NY22 mi47 minW 710.00 miFair39°F30°F70%1006.3 hPa

Wind History from HTO (wind in knots)
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Last 24hrCalmS4SE4S6SE8SE7SE7S9
G14
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G21
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G19
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1 day agoCalmCalmCalmSE3SE5SE7SE4SE5SE5CalmSE5CalmE5NE5NE5E5E9E8E7E4E6E3SE3Calm
2 days agoNW3CalmCalmCalmCalmCalmCalmCalmNW5NW6N5N5N3CalmW4CalmW3CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Sag Harbor, Shelter Island Sound, New York
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Sag Harbor
Click for Map
Wed -- 03:14 AM EST     2.40 feet High Tide
Wed -- 07:06 AM EST     Sunrise
Wed -- 09:52 AM EST     0.14 feet Low Tide
Wed -- 11:13 AM EST     Moonrise
Wed -- 03:31 PM EST     2.08 feet High Tide
Wed -- 04:56 PM EST     Sunset
Wed -- 05:20 PM EST     First Quarter
Wed -- 09:58 PM EST     0.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.92.32.42.321.61.10.70.30.10.40.91.51.92.12.11.81.410.60.20.10.3

Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
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Shinnecock Canal
Click for Map
Wed -- 02:18 AM EST     -0.00 knots Slack
Wed -- 05:30 AM EST     -1.29 knots Max Ebb
Wed -- 07:07 AM EST     Sunrise
Wed -- 09:10 AM EST     0.00 knots Slack
Wed -- 11:14 AM EST     Moonrise
Wed -- 11:30 AM EST     1.15 knots Max Flood
Wed -- 02:28 PM EST     -0.00 knots Slack
Wed -- 04:57 PM EST     Sunset
Wed -- 05:20 PM EST     First Quarter
Wed -- 05:48 PM EST     -1.37 knots Max Ebb
Wed -- 09:21 PM EST     0.00 knots Slack
Wed -- 11:58 PM EST     1.40 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.80.2-0.5-1-1.3-1.3-0.9-0.5-0.10.51.11.10.80.3-0.4-1-1.3-1.4-1.1-0.7-0.20.41.1

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 (0,6,7,8)
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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.