Saturday, November17, 2018 L-36.com


Marine Weather and Tides
Napeague, NY

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:38AMSunset 4:28PM Saturday November 17, 2018 6:29 AM EST (11:29 UTC) Moonrise 2:56PMMoonset 1:27AM Illumination 70% Phase: Waxing Gibbous; Moon at 9 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- 540 Am Est Sat Nov 17 2018
Today..W winds 10 to 15 kt. Occasional gusts up to 25 kt early. Waves 2 to 3 ft early, then 1 ft or less.
Tonight..NW winds 10 to 15 kt. Waves 1 ft or less.
Sun..N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 ft or less.
Sun night..S winds 5 to 10 kt, becoming sw after midnight. Waves 1 ft or less.
Mon..W winds 5 to 10 kt. Waves 1 ft or less.
Mon night..NW winds 5 to 10 kt. Waves 1 ft or less. Chance of showers after midnight.
Tue..NW winds 5 to 10 kt. Waves 1 ft or less. Chance of showers in the morning.
Tue night..NW winds 5 to 10 kt. Waves 1 ft or less.
Wed..NW winds around 10 kt. Waves 1 ft or less.
Wed night..NW winds 5 to 10 kt. Waves 1 ft or less.
ANZ300 540 Am Est Sat Nov 17 2018
Synopsis for the long island waters and new york harbor.. High pressure builds across the waters through the weekend. Weak low pressure passes through late Sunday through Monday. A slow moving cold front then moves across the waters on Tuesday followed by high pressure.


7 Day Forecast for Marine Location Near Napeague, NY
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location: 41, -72.08     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 171050
afdokx
area forecast discussion
national weather service new york ny
550 am est Sat nov 17 2018

Synopsis
High pressure builds into the area into Sunday. A frontal
boundary will slowly move across the area late Sunday into
Tuesday morning with weak areas of low pressure tracking along
it. High pressure then builds in through the thanksgiving
holiday.

Near term through tonight
Main adjustment to the forecast this morning is for cloud
cover. Bkn-ovc stratus stratocu has been expanding southern ct
and long island this morning. Have increased cloud cover through
mid morning as a result, models still not handling well and
timing of dissipation remains challenging.

Quasi-zonal flow aloft will prevail through tonight. At the
sfc, high pressure builds towards the area today, then over new
england tonight. Once the clouds do give way, should see a
mostly sunny partly cloudy day under a westerly flow with highs
in the mid to upper 40s.

As the high builds over new england tonight winds will diminish
under mostly clear skies. A dry cold front is progged to move
across the area this evening. High clouds should begin to
increase during the overnight hours although still should have
good radiational cooling conditions. Lows are expected to range
from the mid to upper 20s across the interior and pine barrens
of long island to lower to mid 30s closer to the coast.

Short term Sunday through Tuesday
Guidance is in good agreement with an amplifying pattern
developing across the lower 48 early next week as a piece of
the polar vortex breaks off and drops into hudson bay. This will
result in a developing longwave trough east of the rockies with
a high amplitude ridge to the west.

Sfc high pres shifts offshore on Sun as the entrance region of
an upper jet streak with weak shortwave energy tracks from the
ohio valley into new england. WAA will also ensure later Sun and
more so Sun night. This is expected to lead to the expansion of
precipitation north and west of nyc late Sun sun eve with a weak
sfc low passing through Mon morning. A frontal boundary will
then approach from the NW and slowly track across the area mon
into Tue bringing the potential for additional pcpn. Soundings
are initially indicating pcpn to begin as snow well inland sun
night, transitioning to rain by Mon morning with plain rain
throughout the entire event closer to the coast. There is some
uncertainty with the thermal profiles inland Mon night into
tue, the GFS is significantly colder than the nam, so this will
need to be monitored and adjusted as needed. Have leaned more on
the colder side for now.

Temperatures are expected to range between 5 and 10 degrees
below normal into the middle of next week.

Long term Tuesday night through Friday
The 500 mb trough axis moves through Tue eve. Have kept the
forecast dry, but it is not out of the question for a snow or
rain shower to occur as it passes.

High pressure then builds for midweek and will continue through
the thanksgiving holiday.

Temperatures through the long term will remain below average
with the coldest day being on Wednesday. Temperatures then
moderate towards the end of the week, but still remaining below
normal.

Aviation 12z Saturday through Wednesday
High pressure slowly builds in from the nw.

MainlyVFR through the TAF period. There are some early morning
ovc bkn clouds between 3-4kft which may produce an hour or two of
MVFR cigs.

West winds gusting around 20 kt mainly at the city terminals.

Lighter winds and no gusts for the other terminals. Gusts
return to most terminals by noon Saturday, but mostly in the
range of 15-20 kt.

Outlook for 06z Sunday through Wednesday
Sat night-Sunday Vfr.

Sunday night-Monday MVFR or lower possible in possible rain
or wintry mix. NW winds g15-20kt Monday.

Tuesday Vfr.

Wednesday Vfr.

Marine
Gusty westerly winds remain on the forecast waters today with weak
cold advection. Winds gusts gradually diminish below 25 kt this
morning as the gradient relaxes a bit. Seas will take much of the
day to fall below 5 ft, especially across the far eastern ocean
waters.

Have gone ahead and cancelled the SCA for long island sound and the
peconic and gardiners bays, however there may still be some
occasional gusts to 25 kt early this morning. Small crafts continue
on the ocean with the western ocean ending at 18z today, and the two
eastern ocean zones at 23z.

Winds and seas then remain below advisory levels Saturday night
through Friday as only weak waves are expected to pass through and
high pressure remains in control most of the time.

Hydrology
Light QPF amounts, 1 10" to 1 3" with highest amounts north,
are expected Sun night into tue. No hydrologic issues are
expected through Friday.

Equipment
Nyc NOAA weather radio station kwo35 (162.55 mhz) will remain off
the air for an extended period of time.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... Small craft advisory until 1 pm est this afternoon for anz355.

Small craft advisory until 6 pm est this evening for anz350-
353.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MTKN6 - 8510560 - Montauk, NY 7 mi48 min 45°F 50°F1016.4 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 21 mi45 min W 17 G 22 41°F 1017.4 hPa32°F
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 21 mi40 min W 21 G 27 45°F 55°F7 ft1017.6 hPa (+3.4)37°F
NLNC3 - 8461490 - New London, CT 25 mi42 min W 6 G 8.9 37°F 54°F1016.5 hPa
NWHC3 - 8465705 - New Haven, CT 48 mi42 min W 6 G 7 39°F 53°F1017.6 hPa

Wind History for New London, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Montauk, Montauk Airport, NY10 mi96 minW 13 G 20 mi43°F35°F74%1016.2 hPa
Groton / New London, Groton / New London Airport, CT23 mi34 minW 910.00 miFair39°F30°F73%1016.6 hPa

Wind History from MTP (wind in knots)
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Last 24hr------------------W10
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1 day ago------------------------------------------------
2 days agoNW11
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Tide / Current Tables for Promised Land, Napeague Bay, Long Island Sound, New York
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Promised Land
Click for Map
Sat -- 12:27 AM EST     Moonset
Sat -- 04:34 AM EST     2.23 feet High Tide
Sat -- 06:38 AM EST     Sunrise
Sat -- 11:03 AM EST     0.59 feet Low Tide
Sat -- 01:55 PM EST     Moonrise
Sat -- 04:28 PM EST     Sunset
Sat -- 04:43 PM EST     2.14 feet High Tide
Sat -- 11:20 PM EST     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.21.622.22.221.81.51.20.80.60.71.11.51.92.12.121.71.410.70.4

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Sat -- 12:27 AM EST     Moonset
Sat -- 12:29 AM EST     0.00 knots Slack
Sat -- 03:16 AM EST     2.04 knots Max Flood
Sat -- 06:38 AM EST     Sunrise
Sat -- 06:45 AM EST     -0.00 knots Slack
Sat -- 09:42 AM EST     -2.32 knots Max Ebb
Sat -- 01:02 PM EST     0.00 knots Slack
Sat -- 01:55 PM EST     Moonrise
Sat -- 03:43 PM EST     1.93 knots Max Flood
Sat -- 04:27 PM EST     Sunset
Sat -- 07:03 PM EST     -0.00 knots Slack
Sat -- 10:03 PM EST     -2.42 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.50.61.521.91.50.8-0.3-1.4-2.2-2.3-1.8-1.1-011.81.91.610.1-1.1-2-2.4-2.1

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (6,6,7,8)
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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.