Monday, March27, 2017 L-36.com


Marine Weather and Tides
Sag 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 6:38AMSunset 7:12PM Monday March 27, 2017 6:34 AM EDT (10:34 UTC) Moonrise 6:35AMMoonset 6:48PM Illumination 0% Phase: New Moon; Moon at 29 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
    EDIT      (on/off)   Help
ANZ340 Peconic And Gardiners Bays- 331 Am Edt Mon Mar 27 2017
Today..SE winds around 10 kt with gusts up to 20 kt...becoming S this afternoon. Waves 1 ft or less. Areas of fog early this morning. Chance of rain early. Areas of drizzle early this morning. Rain likely. Vsby 1 to 3 nm early this morning.
Tonight..SW winds around 5 kt...becoming E after midnight. Waves 1 ft or less. Chance of rain.
Tue..E winds around 5 kt. Waves 1 ft or less. Chance of rain.
Tue night..NE winds 5 to 10 kt. Waves 1 ft or less. Rain likely.
Wed..N winds around 10 kt. Waves 1 ft or less.
Wed night..N winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft.
Thu..N winds 10 to 15 kt...becoming nw around 5 kt in the afternoon...then becoming sw in the evening...becoming se after midnight. Waves 1 to 2 ft in the morning...then 1 ft or less.
Fri..SE winds 5 to 10 kt...becoming E 10 to 15 kt. Waves 1 ft or less...then around 2 ft in the afternoon and evening...then 1 ft or less after midnight. Chance of rain.
ANZ300 331 Am Edt Mon Mar 27 2017
Synopsis for long island waters and new york harbor.. A warm front will move N of the waters today. Weak low pressure approaches Tue...followed by a cold front Tue night. High pressure builds in Wed and Thu. Another low pressure system approaches Fri.

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


Area Discussion for - New York City/Upton, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kokx 270923
afdokx
area forecast discussion
national weather service new york ny
523 am edt Mon mar 27 2017

Synopsis
A warm front will slowly lift through the tri-state region
today. A cold front with a wave of low pressure passes through
the region Tuesday night. High pressure builds in for
Wednesday and Thursday, and shifts offshore Thursday night. A
low pressure system approaches from the central united states
Thursday night and impacts the region Friday and Saturday. High
pressure returns for Sunday.

Near term /until 6 pm this evening/
Drizzle will continue this morning, with increasing lift
allowing for areas of steady rain to develop. Radar returns are
already showing this rain west of the hudson river. It will be
difficult to clear out this afternoon behind the front, with
significant moisture at or below 4000 ft depicted by the models.

This will keep the area from warming up to MAX potential, and
therefore limiting instability. Regardless, there could be
enough support from the upper jet to produce some showers this
afternoon into the early evening after the frontal passage. A
broad model consensus was used for temperatures today, with an
emphasis given to the raw model output.

Short term /6 pm this evening through 6 pm Tuesday/
Convergence aloft in the dry layer does not seem conducive to
much rainfall tonight. As a result, only low chances for rain
were included in the forecast. If rain does develop, it may turn
out to be mainly sprinkles or light drizzle. Surprisingly big
differences exist between the NAM and GFS for Tuesday. The nam
holds off on the deep lift, and therefore the bulk of the rain,
for the entire day. The GFS brings in rain by morning. The ecmwf
supports the nam, by keeping the bulk of the rain with the main
shortwave. The GFS appears to be kicking off convection over
pennsylvania that brings residual energy in. The forecast sides
with the drier solutions, although there may be some showers or
pockets of light rain with weak vorticity advection and a moist
airmass. A blend of the models was used for temperatures.

Long term /Tuesday night through Sunday/
A southern stream shortwave over the oklahoma and kansas area
this Monday morning will weaken and track to the mid atlantic
coast Tuesday and offshore Tuesday night. Meanwhile, a northern
stream longwave trough moving through south central canada moves
east and passes into northern new england Tuesday night. There
is still some differences in whether or not the two systems will
phase, with consensus for the south stream to be more
progressive and remain separate, and farther south than other
models, while dampening and exiting the mid atlantic. The
southern movement will keep an associated warm front to the
south. This southern and separate solution has been the trend
the last several runs. With higher confidence in precipitation
affecting the area, mainly the southern half of the cwa, will
have likely probabilities Tuesday night.

A northwest flow will persist across the region as surface
high pressure builds to the north and the upper northern stream
trough moves slowly off the northeast coast through Thursday
night. The surface high weakens Thursday night as another
southern stream shortwave approaches, however the upper ridge is
holding with the axis shifting east of the area Friday. The
southern stream system will also be weakening as the wave tracks
east. Have brought in chances late Thursday night into Friday
and this may be too quick if the ridge holds. The weakening low
will re develop off the mid atlantic coast Saturday with chances
of precipitation remaining into Saturday night. Cold air will
be in place across the northern tier and some of the
precipitation may fall as snow or a rain snow mix.

Weak high pressure returns for Sunday into Monday.

Aviation /09z Monday through Friday/
Low-level ridge continues to weaken and gives way to an
approaching warm front to the south for late this morning. This
front will lift slowly through during the late morning/early
afternoon hours, possibly washing out across or just north of
the area.

Lower ceilings, drizzle, and fog continue to work in from the
sw. Conditions have generally lowered through the overnight
with widespread lifr at most terminals leading up to the morning
push.

Ifr conditions could last through much of the period, especially
to the north and east of the nyc terminals due to the
uncertainty with the timing and final placement of the warm
front. Tafs have been updated to show llws for most terminals
for the mid to late morning. Moderate confidence in improving
visibilities and ceilings from 18z to 22z across most terminals,
before lowering ceilings and visibilities again for Monday
night into Tuesday morning.

Ny metro enhanced aviation weather support...

detailed information, including hourly TAF wind component forecasts,
can be found at: http://

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MTKN6 - 8510560 - Montauk, NY 17 mi46 min 40°F 39°F1022.3 hPa
44039 - Central Long Island Sound 21 mi79 min E 16 G 19 38°F 3 ft
LDLC3 - New London Ledge CT - Ledge Light Weather 23 mi34 min E 17 G 21 38°F 37°F
NLNC3 - 8461490 - New London, CT 26 mi46 min E 5.1 G 8 38°F 40°F1022.6 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 26 mi44 min 42°F 42°F5 ft1022 hPa (-2.7)42°F
NWHC3 - 8465705 - New Haven, CT 38 mi46 min ENE 2.9 G 7 37°F 39°F1022.8 hPa
BRHC3 - 8467150 - Bridgeport, CT 49 mi52 min E 7 G 12 37°F 1022 hPa

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
N3
G9
N4
G7
NE5
G10
NE3
G7
E4
G10
NE2
G5
NE2
G5
SE10
G14
E11
G16
E11
G15
E10
G14
E5
G10
E7
G12
E9
G12
E5
G11
E4
E5
G8
E5
E6
G9
NE4
NE2
G6
NE4
E6
NE4
1 day
ago
NE1
NW2
N3
N2
N5
G8
N1
G5
N4
G7
N5
G11
N5
G11
N5
G11
NE1
G7
E2
NE2
G5
N2
G6
NE3
N2
G5
NE3
G6
N1
--
NE3
N4
N3
N4
N4
G7
2 days
ago
N2
N2
SW11
SW7
G13
SW13
G20
SW13
G17
SW12
G20
SW15
G22
SW16
G22
SW13
G21
SW9
G15
SW5
G8
SW7
G11
SW6
G10
SW8
G13
SW8
G11
SW6
G10
W1
G4
SW2
SW2
S1
--
--
N4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Montauk, Montauk Airport, NY20 mi1.7 hrsVar 6 mi40°F39°F97%1023.6 hPa
The Gabreski Airport, NY22 mi41 minE 81.75 miFog/Mist40°F37°F93%1022.2 hPa

Wind History from HTO (wind in knots)
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrNE6NE8NE7E7
G15
E12
G18
E8
G14
E9
G19
E9
G16
E11
G17
E9
G14
E9
G16
E10
G15
E10
G16
E11E11
G19
E10E6E6E8E5E8E6E9
G14
E9
1 day agoCalmCalmCalmN6
G18
N6E9
G20
E5E7--E10
G15
NE6SE8E6SE7E5NE3NE4NE5NE3CalmNE3E4NE5NE6
2 days agoSW5S3S11
G16
SW13
G24
SW13
G17
SW12
G19
SW12
G19
SW12
G19
S11
G18
SW12
G20
SW15
G25
SW9
G17
SW11
G17
SW12
G16
SW9
G18
SW5SW10SW9
G14
CalmSW5SW7SW6SW4Calm

Tide / Current Tables for Sag Harbor, Shelter Island Sound, New York
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Sag Harbor
Click for Map
Mon -- 04:32 AM EDT     -0.26 feet Low Tide
Mon -- 06:35 AM EDT     Moonrise
Mon -- 06:40 AM EDT     Sunrise
Mon -- 10:35 AM EDT     2.87 feet High Tide
Mon -- 04:50 PM EDT     -0.27 feet Low Tide
Mon -- 06:47 PM EDT     Moonset
Mon -- 07:09 PM EDT     Sunset
Mon -- 10:53 PM EDT     3.01 feet High Tide
Mon -- 10:59 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.610.3-0.2-0.20.31.11.92.52.82.82.51.91.20.5-0.1-0.30.10.91.82.52.93

Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
   EDIT      (on/off)   Help   One Week of Data
Shinnecock Canal
Click for Map
Mon -- 12:24 AM EDT     -1.80 knots Max Ebb
Mon -- 03:54 AM EDT     0.00 knots Slack
Mon -- 06:26 AM EDT     1.73 knots Max Flood
Mon -- 06:36 AM EDT     Moonrise
Mon -- 06:41 AM EDT     Sunrise
Mon -- 09:33 AM EDT     -0.00 knots Slack
Mon -- 12:48 PM EDT     -1.86 knots Max Ebb
Mon -- 04:16 PM EDT     0.00 knots Slack
Mon -- 06:47 PM EDT     1.79 knots Max Flood
Mon -- 06:48 PM EDT     Moonset
Mon -- 07:10 PM EDT     Sunset
Mon -- 09:57 PM EDT     -0.00 knots Slack
Mon -- 10:59 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.8-1.7-1.3-0.70.11.11.71.71.30.6-0.4-1.2-1.7-1.8-1.5-0.9-0.20.71.61.81.50.9-0.1-1

Weather Map and Satellite Images
       (on/off)   Help
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)
      (on/off)   Help

Ground Weather Radar Station Upton, NY
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.