Saturday, March25, 2017 L-36.com


Marine Weather and Tides
Smith, 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 6:44AMSunset 7:12PM Saturday March 25, 2017 9:41 AM EDT (13:41 UTC) Moonrise 5:28AMMoonset 4:35PM Illumination 4% Phase: Waning Crescent; Moon at 28 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- 632 Am Edt Sat Mar 25 2017
Today..W winds around 5 kt...becoming ne late this morning and afternoon. Seas 1 ft or less. Slight chance of light rain late this morning and early afternoon. Light rain likely late.
Tonight..NE winds 5 to 10 kt...increasing to 10 to 15 kt after midnight. Seas 1 ft or less...then 1 to 2 ft after midnight. Light rain likely. Patchy fog. Vsby 1 to 3 nm.
Sun..E winds 10 to 15 kt. Seas 1 to 2 ft. Chance of light rain or drizzle.
Sun night..E winds 10 to 15 kt. Seas 1 to 2 ft. Light rain likely...mainly after midnight.
Mon..SE winds around 10 kt...becoming S in the afternoon. Seas 1 to 2 ft. Rain likely.
Mon night..S winds 5 to 10 kt...diminishing to around 5 kt after midnight. Seas 1 ft or less. Chance of rain.
Tue..SE winds around 5 kt...becoming E in the afternoon and evening...then becoming ne after midnight. Seas 1 ft or less. Chance of rain.
Wed..N winds 5 to 10 kt. Seas 1 ft or less.
ANZ300 632 Am Edt Sat Mar 25 2017
Synopsis for long island waters and new york harbor.. A back door cold front approaches...and moves south of the ocean waters late in the day. Low pressure gradually approaches from the west Sunday...and moves across on Monday. Another frontal system may impact the region Tuesday and Wednesday.

7 Day Forecast for Marine Location Near Smith, NY
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location: 40.87, -73.2     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 251132
afdokx
area forecast discussion
national weather service new york ny
732 am edt Sat mar 25 2017

Synopsis
A cold front over southeastern new york and southern new
england will drift south through the tri-state region today. An
unsettled weather pattern continues Sunday into the middle of
next week. Cold front to our south returns to the region Sunday
night into Monday and moves offshore Monday night. Another
frontal system approaches on Tuesday and moves across Tuesday
night into Wednesday. High pressure returns Thursday ahead of
the next front on Friday.

Near term /until 6 pm this evening/
Minor adjustments needed for temperature and dew point trends.

Have lowered temperatures across ct and southeastern ny more due
to rapid southward advancement of the cold front. Previous
discussion follows.

Temperatures are generally mild this morning amidst cloudy
conditions and subtle warm advection in southerly flow. High
temperatures will likely be achieved this morning or into the
early afternoon before a cold front begins to move through the
area from northeast to southwest. Initially very little
precipitation is expected to reach the ground, but gradual
saturation and increased forcing for ascent with an approaching
upper low and the cold front will lead to the development of
light rain by afternoon- evening.

Short term /6 pm this evening through 6 pm Sunday/
Warm/moist advection will continue above the surface in broad
westerly then southwesterly flow, while cooler conditions at the
surface behind the cold front will maintain a strong inversion
over the area. Overall a favorable set up for patchy fog and
continued cloudy conditions as well as light rain or drizzle
through the weekend as an upper low slowly approaches the
region.

Long term /Sunday night through Friday/
Rain chances increase Sunday night into Monday as a short wave
passes through the area, allowing a warm front to return
northward. A second short wave quickly follows for Tuesday into
Wednesday, with the attendant surface trough/cold front moving
through Tuesday night. Temperatures Tuesday are expected to be
above normal as southerly flow strengthens following the warm
frontal passage. By Wednesday, flow returns to a west-northwest
direction with subsidence, enhanced by downslope flow and
clearing skies again leading to another potentially above normal
temperature day. The unsettled pattern continues through the end
of the week, with a degree of uncertainty for Thursday and
Friday depending on the overall evolution of a series of upper
waves emanating from the pacific.

Aviation /12z Saturday through Wednesday/
A cold front moving slowly south through the terminals will move
south of the area this afternoon. High pressure builds to the
north and into the region tonight.

Vfr conditions are expected to remain until early to mid
afternoon, 17z to 19z, as light rain and MVFR conditions
develop. As the rain ends drizzle will become likely tonight
with ifr ceilings likely, and possible brief ifr visibilities in
drizzle and fog.

There is uncertainty as to the timing of the cold front passage
and the developing lowering conditions, and how low ceilings
will become. As high pressure moves in late tonight, there may
be some improvement in ceilings.

Sw to W winds 10 kt or less, to light and variable will shift to
the NE around 10 kt. The NE to E flow remains through 12z
Sunday.

Outlook for 12z Sunday through Wednesday
Sunday-Monday MVFR to ifr, with lifr or lower possible.

Periods of rain, drizzle and fog.

Monday night-Tuesday night MVFR or lower possible.

Wednesday BecomingVFR. NW winds g15-20kt possible in the
afternoon.

Marine
A back door cold front was approaching from southern new england
into southeastern new york. The front is expected to move
slowly across the waters this morning into this afternoon. A
weak surface pressure gradient was keeping winds below small
craft advisory levels. However, ocean seas east of fire island
inlet were running 4 to 6 feet with a component of a short
period southerly swell. With the passage of the cold front an
east to northeast flow develops and persists at least through
the weekend as the cold front remains south of the waters. The
long fetch easterly flow will allow for ocean seas to remain at
minimal small craft levels into at least Sunday and possibly
into the beginning of the week. There may be a brief period late
this afternoon into this evening when ocean seas will be below
small craft levels.

With seas being the main hazard have converted to a small craft for
hazardous seas, Sunday west of fire island inlet, and today through
Sunday east of fire island inlet.

From late Monday through Monday night, sub-sca conditions are
forecast with an overall weak pressure gradient. Seas may build
again to around 5 feet Tuesday as a cold front passes through the
waters. Otherwise winds and seas should remain below SCA levels into
Wednesday.

Hydrology
Rain chances gradually increase through Monday, with around a
half inch to an inch accumulation overall. Unsettled conditions
will continue through the week. With rain expected over a broad
period of time, no hydrologic concerns are anticipated at this
time.

Okx watches/warnings/advisories
Ct... None.

Ny... None.

Nj... None.

Marine... Small craft advisory for hazardous seas from 6 am to 6 pm edt
Sunday for anz355.

Small craft advisory for hazardous seas until 6 pm edt Sunday
for anz350-353.

Synopsis... Md/met
near term... Md
short term... Md
long term... Md
aviation... Met
marine... Met
hydrology... Md


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BRHC3 - 8467150 - Bridgeport, CT 21 mi41 min SSW 2.9 G 2.9 46°F 1021.1 hPa (+2.3)
44040 - Western Long Island Sound 21 mi56 min NE 5.8 G 7.8 42°F 37°F
KPTN6 - 8516945 - Kings Point, NY 30 mi41 min Calm G 0 47°F 38°F1021.2 hPa (+2.6)
NWHC3 - 8465705 - New Haven, CT 32 mi41 min NE 1.9 G 2.9 42°F 39°F1021.7 hPa (+2.0)
44039 - Central Long Island Sound 34 mi71 min S 5.8 G 9.7 40°F
44025 - LONG ISLAND 33 NM South of Islip, NY 43 mi51 min N 1.9 G 3.9 43°F 40°F6 ft1021.3 hPa (+2.3)
44065 - Entrance to New York Harbor 44 mi51 min ENE 3.9 G 3.9 47°F 42°F4 ft1021.3 hPa (+2.1)42°F
BATN6 - 8518750 - The Battery, NY 45 mi41 min 49°F 41°F1020.8 hPa (+1.9)
ROBN4 - 8530973 - Robins Reef, NJ 48 mi41 min SSW 1 G 1.9 51°F 1021.5 hPa (+2.4)

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Islip, Long Island Mac Arthur Airport, NY7 mi1.8 hrsN 010.00 miMostly Cloudy49°F41°F74%1020.4 hPa
Farmingdale - Republic Airport, NY15 mi48 minSSW 510.00 miFair51°F41°F69%1021.2 hPa
Shirley, Brookhaven Airport, NY18 mi45 minN 010.00 miFair52°F39°F64%1021.8 hPa
Bridgeport, Sikorsky Memorial Airport, CT22 mi49 minWSW 310.00 miFair46°F35°F66%1021.7 hPa

Wind History from ISP (wind in knots)
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SW10SW11SW8SW5SW6SW9SW9SW8SW8SW6SW4CalmN5CalmNW6
1 day agoNW17
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NW13NW9W5SW3SW9SW5S3CalmCalmCalmE3E3SW7SW5S6S8S12
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2 days agoNW22
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G24

Tide / Current Tables for Nissequogue River entrance, Long Island Sound, New York
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Nissequogue River entrance
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Sat -- 03:40 AM EDT     0.29 feet Low Tide
Sat -- 05:27 AM EDT     Moonrise
Sat -- 06:47 AM EDT     Sunrise
Sat -- 09:47 AM EDT     7.50 feet High Tide
Sat -- 04:05 PM EDT     -0.01 feet Low Tide
Sat -- 04:35 PM EDT     Moonset
Sat -- 07:10 PM EDT     Sunset
Sat -- 10:11 PM EDT     7.55 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.52.91.50.50.31.12.74.46.17.27.56.85.33.51.90.6-00.41.83.65.46.87.57.2

Tide / Current Tables for Northport, Northport Bay, Long Island Sound, New York
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Northport
Click for Map
Sat -- 03:52 AM EDT     0.28 feet Low Tide
Sat -- 05:28 AM EDT     Moonrise
Sat -- 06:48 AM EDT     Sunrise
Sat -- 09:53 AM EDT     7.82 feet High Tide
Sat -- 04:17 PM EDT     -0.03 feet Low Tide
Sat -- 04:36 PM EDT     Moonset
Sat -- 07:11 PM EDT     Sunset
Sat -- 10:18 PM EDT     7.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.93.31.80.70.30.92.54.36.17.47.87.25.73.92.20.800.31.53.45.477.87.6

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 (9,2,3,4)
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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.