Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Sag Harbor, NY

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:35AMSunset 6:51PM Saturday September 21, 2019 11:02 AM EDT (15:02 UTC) Moonrise 11:21PMMoonset 1:41PM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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- 952 Am Edt Sat Sep 21 2019
Today..SW winds around 5 kt. Waves 1 ft or less.
Tonight..SW winds around 5 kt. Waves 1 ft or less.
Sun..SW winds around 5 kt, increasing to around 10 kt in the afternoon. Waves 1 ft or less.
Sun night..SW winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less.
Mon..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves 1 ft or less, then around 2 ft in the afternoon.
Mon night..SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 10 to 15 kt after midnight. Waves around 2 ft in the evening, then 1 ft or less. Chance of showers.
Tue..W winds around 10 kt. Waves 1 ft or less.
Tue night..NW winds 5 to 10 kt. Waves 1 ft or less.
Wed..NW winds around 5 kt, becoming W in the afternoon. Waves 1 ft or less.
Wed night..SW winds 5 to 10 kt. Waves 1 ft or less.
ANZ300 952 Am Edt Sat Sep 21 2019
Synopsis for the long island waters and new york harbor.. High pressure will dominate through the weekend. A cold front approaches on Monday and moves through Monday night. High pressure follows for remainder of next week.


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 211441
afdokx
area forecast discussion
national weather service new york ny
1041 am edt Sat sep 21 2019

Synopsis
A large area of high pressure along the east coast will be slow
to work east this weekend. A cold front then approaches from the
west on Monday and moves through Monday night. High pressure
returns for the remainder of next week.

Near term until 6 pm this evening
Forecast is on track with just a few minor adjustments to
reflect latest observations. Otherwise, a high amplitude ridge
across the eastern half of the country will result in a dry,
unseasonably warm weekend.

Outside of some thin high clouds, expect a sunny day. A weak
w SW flow this morning will become onshore late this morning
into this afternoon due to seabreeze development.

Highs will top out in the lower to mid 80s, but slightly cooler
along the immediate coastline.

There is a high risk of rip currents at the atlantic ocean
beaches today. The highest surf will be in the morning,
gradually subsiding in the afternoon as the long period swells
lessen.

Short term 6 pm this evening through Monday night
Both the upper ridge and surface high will gradually work
offshore tonight into Sunday, while an amplifying upper trough
approaches from the great lakes. The latter of which will send a
cold front into the area late Monday into Monday night.

Between the departing high and approaching cold front, a sw
flow will gradually strengthen, becoming strongest Monday
afternoon with gusts up to 25 mph. Highest gusts will be near
the coast.

It will also remain unseasonably warm, with highs generally in
the low to mid 80s with lows moderating from the mid 50s to mid
60s Sunday morning, to the mid and upper 60s Monday morning.

There is a chance of showers with an isolated thunderstorm
Monday afternoon night with the cold front. While there is
strengthening of the vertical wind profile as heights fall with
the incoming upper trough, instability remains weak.

There is a moderate risk of rip currents at the atlantic ocean
beaches on Sunday.

Long term Tuesday through Friday
High pressure then keeps us dry Tuesday and Wednesday along
with high temperatures closer to normal. A cold front
associated with low pressure tracking through southern canada
then approaches on Thursday. The upper flow is progged to be
more zonal than cyclonic, so the front therefore weakens as it
approaches us. Have maintained a slight chance of showers with
this front for Thursday. High pressure builds back in on Friday
with dry weather.

Aviation 15z Saturday through Wednesday
High pressure remains over the terminals through the taf
period.VFR conditions are expected to continue.

Light and variable winds become SW 15z to 16z, then sea breezes
develop 16z to 20z, even reaching into kewr and kteb. Wind
speeds remain under 10 kt, except for kjfk where speeds will be
around 10 kt especially mid to late afternoon. Winds subside to
5 kts or less tonight for all terminals and become variable in
direction once again outside of nyc terminals.

Forecast timing of sea breeze could be off by 1-2 hours for
individual terminals.

Outlook for 12z Sunday through Wednesday
Sunday Vfr.

Monday MVFR possible. Chance of showers afternoon into night
with a slight chance of thunderstorms. SW gusts 15-20kt day
into early evening.

Tuesday-Wednesday Vfr.

Marine
Easterly swell will gradually diminish today with sub-sca
conditions forecast by afternoon.

As high pressure gradually works offshore southerly winds will
gradually increase through the time period with SCA conditions
likely to return to the ocean waters Sunday night into Monday.

Marginal SCA conditions will be possible for eastern LI sound
and all of the bays surrounding li.

Winds and seas then diminish on Tuesday, with all waters below
advisory criteria by Tuesday night. Relatively tranquil conditions
then continue through Wednesday with a weak pressure gradient and
lack of significant swell.

Hydrology
No significant hydrologic impacts are expected through next
week.

Equipment
Nyc NOAA weather radio station kwo35 (162.55 mhz) remains off
the air.

Okx watches warnings advisories
Ct... None.

Ny... High rip current risk until 8 pm edt this evening for nyz075-
080-081-178-179.

Nj... None.

Marine... Small craft advisory for hazardous seas until noon edt today
for anz350-353-355.

Synopsis... Dw
near term... Bc dw
short term... Dw
long term... Jc
aviation... Jm met
marine... Dw
hydrology... Dw
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MTKN6 - 8510560 - Montauk, NY 17 mi50 min 65°F 68°F1023.4 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 23 mi32 min NNW 8 G 8 69°F 1002.2 hPa55°F
NLNC3 - 8461490 - New London, CT 26 mi50 min NNW 5.1 G 6 69°F 68°F1023 hPa
NWHC3 - 8465705 - New Haven, CT 38 mi44 min NNE 8 G 11 69°F 69°F1022.7 hPa
44069 48 mi47 min WSW 3.9 G 3.9 68°F 68°F61°F
BRHC3 - 8467150 - Bridgeport, CT 49 mi56 min SE 4.1 G 4.1 67°F 69°F1022.9 hPa

Wind History for New London, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Montauk, Montauk Airport, NY20 mi68 minNNW 4 mi70°F55°F61%1023.5 hPa
The Gabreski Airport, NY22 mi69 minN 010.00 miFair72°F57°F59%1023.7 hPa

Link to 5 minute data for KHTO

Wind History from HTO (wind in knots)
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W6W6W4CalmCalmW4W4W5CalmCalmCalmW3CalmCalmCalmCalmCalmCalmN4N4
1 day agoN6E4N5NE5NE5N5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW5W5W6W6W7NW9
2 days agoNE8
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N9NE7NE7NE5NE5NE5NE5NE4NE5NE6NE6NE6CalmCalmN4CalmNE4NE7NE7

Tide / Current Tables for Sag Harbor, Shelter Island Sound, New York
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Shinnecock Canal, Railroad Bridge, New York Current
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Shinnecock Canal
Click for Map
Sat -- 02:43 AM EDT     -0.00 knots Slack
Sat -- 05:48 AM EDT     -1.15 knots Max Ebb
Sat -- 06:36 AM EDT     Sunrise
Sat -- 09:24 AM EDT     0.00 knots Slack
Sat -- 12:11 PM EDT     1.29 knots Max Flood
Sat -- 01:41 PM EDT     Moonset
Sat -- 03:23 PM EDT     -0.00 knots Slack
Sat -- 06:44 PM EDT     -1.26 knots Max Ebb
Sat -- 06:49 PM EDT     Sunset
Sat -- 10:35 PM EDT     0.00 knots Slack
Sat -- 10:43 PM EDT     Last Quarter
Sat -- 11:22 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.70.4-0.2-0.8-1.1-1.1-1-0.6-0.20.30.91.31.10.80.3-0.4-1-1.2-1.3-1-0.6-0.30.3

Weather Map
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wmap_A
GEOS Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New York City/Upton, NY (11,2,3,4)
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Ground Weather Radar Station Upton, NY
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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.