Thursday, August22, 2019 L-36.com


Marine Weather and Tides
Port Jefferson, NY

Version 3.4
NOTICE
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 6:07AMSunset 7:42PM Thursday August 22, 2019 2:18 PM EDT (18:18 UTC) Moonrise 11:27PMMoonset 12:44PM Illumination 54% 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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ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 130 Pm Edt Thu Aug 22 2019
This afternoon..W winds 5 to 10 kt. Seas 1 ft or less. Slight chance of showers and tstms.
Tonight..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less. Scattered tstms in the evening. Scattered showers.
Fri..N winds 5 to 10 kt, becoming nw in the afternoon. Seas 1 ft or less. Scattered showers in the morning.
Fri night..N winds 5 to 10 kt. Seas 1 ft or less.
Sat..NE winds 5 to 10 kt. Seas 1 ft or less.
Sat night..NE winds 5 to 10 kt. Seas 1 ft or less.
Sun..NE winds 10 to 15 kt. Seas 1 ft or less, then around 2 ft in the afternoon. Chance of showers in the afternoon.
Sun night..NE winds 10 to 15 kt. Seas around 2 ft.
Mon..NE winds around 10 kt. Seas 1 ft or less.
Mon night..E winds around 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms.
ANZ300 130 Pm Edt Thu Aug 22 2019
Synopsis for the long island waters and new york harbor.. A cold front will slowly approach the waters today, passing tonight. High pressure builds in behind the front through Mon.


7 Day Forecast for Marine Location Near Port Jefferson, NY
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location: 40.95, -73.06     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 221734
afdokx
area forecast discussion
national weather service new york ny
134 pm edt Thu aug 22 2019

Synopsis
A cold front will approach today and pass offshore by Friday
morning. High pressure builds to the north this weekend and
across the canadian maritimes early next week. A frontal system
approaches by mid week next week.

Near term through tonight
Bumped up high temperatures by a couple of degrees, mainly
across long island, but also for a few other locations based on
latest obs and a mostly sunny partly cloudy sky.

A cold front approaches today. Ahead of this front, hot and
humid weather will continue. A prefrontal trough through the
city and into ct will remain nearly stationary before being
forced to the east this evening. Behind the trough, dewpoints
may lower another degree or two as the low level flow comes in
off the land. Elsewhere, dewpoints mostly 70-75.

No changes to the heat advisory with the heat index still
expected to be around 95 for much of the area within the
advisory.

The area is in a marginal risk for severe for this afternoon and
evening. The increasing shear late supports organized cells.

However the models depict some NVA coming through at peak
heating, so this may suppress development for most of the day.

The jet gets close enough to support activity tonight. Some of
this could be strong to severe, mainly the southern third of the
area, until the front comes through. Thereafter, showers are
possible with the jet still providing upper level divergence.

There is a moderate rip current risk today.

Short term Friday
Lingering morning showers are possible per the 00z nam, GFS and
ecmwf. Although the upper jet will be supportive of activity
through the day, the stable airmass building in will counteract
this. As a result, clearing is expected to occur from the
northwest through the day, and temperatures will mix out to
around 80. The humidity will be much lower with the drier
airmass building in.

There is a moderate rip current risk Friday.

Long term Friday night through Wednesday
Models, except the nam, are in general agreement with handling of a
sw to NE oriented trough and eventual closed low over the northeast
this weekend, as sfc high pressure builds to the north.

Dry, cooler and less humid air will be ushered in for the weekend,
with temperatures several degrees below normal. As the upper low
passes overhead by Sunday, the sfc high moves east and easterly wind
flow will moisten the lower levels of the atmosphere. With this
increase in low level moisture and upper cold pool overhead, a pop
up shower is possible on Sunday. This upper low traverses east as
next trough begins to approach from the upper mid west early next
week. This upper trough slowly lifts north in central canada, so do
not foresee a huge rain event by mid week as sfc frontal boundary
weakens as it approaches due to lack of upper support.

As such, generally dry weather conditions are anticipated early to
mid week next week.

As mentioned, cooler than normal temperatures can be expected this
weekend, and possibly into Monday. These temperatures begin to creep
up closer to normal as the upper low passes east toward mid week
next week.

Aviation 18z Thursday through Tuesday
A cold front will move through late tonight into Friday.

MainlyVFR and dry conditions expected the remainder of this
afternoon. Showers and thunderstorms are possible late this
afternoon with the highest chances later this evening moving
from NW to se. With these, brief MVFR to possibly ifr conditions
as well as potentially gusty winds will be possible.

Regarding winds, SW flow of 5-10 kts for most terminals
initially will become more S with sea breeze development in the
afternoon with a slight increase in wind speed. A few gusts to
15-20 kt will be possible late afternoon into the early
evening along the coast. Winds will become more w-nw at 5-10 kt
tonight after the cold frontal passage.

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
BRHC3 - 8467150 - Bridgeport, CT 17 mi55 min SW 8.9 G 12 83°F 79°F1010.4 hPa
44069 17 mi49 min WSW 12 G 16 81°F 81°F74°F
NWHC3 - 8465705 - New Haven, CT 24 mi49 min W 6 G 11 85°F 78°F1010.3 hPa
KPTN6 - 8516945 - Kings Point, NY 39 mi55 min E 1.9 G 2.9 87°F 76°F1011.9 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 49 mi89 min W 9.7 G 12 75°F 75°F4 ft1012 hPa (+0.0)

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Islip, Long Island Mac Arthur Airport, NY11 mi83 minWNW 810.00 miMostly Cloudy89°F68°F50%1011.1 hPa
Shirley, Brookhaven Airport, NY14 mi23 minWNW 610.00 miFair90°F63°F41%1010.9 hPa
Bridgeport, Sikorsky Memorial Airport, CT16 mi27 minSW 1310.00 miPartly Cloudy86°F71°F61%1010.9 hPa
The Gabreski Airport, NY24 mi26 minS 910.00 miA Few Clouds86°F72°F63%1011.4 hPa
Farmingdale - Republic Airport, NY24 mi26 minWNW 6 G 1510.00 miFair88°F64°F46%1011.3 hPa

Link to 5 minute data for KISP

Wind History from ISP (wind in knots)
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1 day agoS8SW7S9S8S5S6S4S4S3S4CalmS5S7SW6SW5S5S4S5S7SW9SW11SW13SW15
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2 days agoS9S13--SW13SW4SW6CalmCalmS3SW3CalmCalmCalmN4N5N4N3N6N8N7N9NE6N6Calm

Tide / Current Tables for Port Jefferson, Long Island Sound, New York
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Port Jefferson
Click for Map
Thu -- 04:33 AM EDT     6.33 feet High Tide
Thu -- 06:08 AM EDT     Sunrise
Thu -- 10:37 AM EDT     0.98 feet Low Tide
Thu -- 12:44 PM EDT     Moonset
Thu -- 04:50 PM EDT     6.88 feet High Tide
Thu -- 07:40 PM EDT     Sunset
Thu -- 11:17 PM EDT     0.91 feet Low Tide
Thu -- 11:26 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.83.14.45.56.26.35.54.22.91.81.111.83.14.55.86.66.96.35.13.72.41.50.9

Tide / Current Tables for Stratford Shoal, Long Island Sound, New York
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Stratford Shoal
Click for Map
Thu -- 04:02 AM EDT     6.31 feet High Tide
Thu -- 06:08 AM EDT     Sunrise
Thu -- 10:10 AM EDT     1.00 feet Low Tide
Thu -- 12:45 PM EDT     Moonset
Thu -- 04:26 PM EDT     6.85 feet High Tide
Thu -- 07:41 PM EDT     Sunset
Thu -- 10:50 PM EDT     0.98 feet Low Tide
Thu -- 11:26 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.33.755.96.364.93.62.31.411.22.23.656.26.86.75.94.63.121.21

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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Wind Forecast for New York City/Upton, NY (14,3,4,5)
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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.