Saturday, April29, 2017 L-36.com


Marine Weather and Tides
Medford, 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 5:49AMSunset 7:48PM Saturday April 29, 2017 1:35 PM EDT (17:35 UTC) Moonrise 8:40AMMoonset 11:32PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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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ANZ345 South Shore Bays From Jones Inlet Through Shinnecock Bay- 1226 Pm Edt Sat Apr 29 2017
This afternoon..SW winds around 10 kt. Waves 1 ft or less.
Tonight..W winds 5 to 10 kt...becoming N after midnight. Waves 1 ft or less.
Sun..NE winds 5 to 10 kt...becoming E 10 to 15 kt in the afternoon. Waves 1 ft or less.
Sun night..E winds 10 to 15 kt...diminishing to 5 to 10 kt after midnight. Waves 1 ft or less. Patchy fog. Vsby 1 to 3 nm.
Mon..SE winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon. Waves 1 ft or less...then around 2 ft in the afternoon. Patchy fog. Vsby 1 to 3 nm.
Mon night..S winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. Chance of showers in the evening...then showers likely with chance of tstms after midnight with vsby 1 to 3 nm.
Tue..W winds 10 to 15 kt. Waves around 2 ft. Showers likely in the morning with vsby 1 to 3 nm.
Wed..W winds 10 to 15 kt...diminishing to 5 to 10 kt in the evening...then becoming nw after midnight. Waves around 2 ft... Then 1 ft or less. Winds and waves higher in and near tstms.
ANZ300 1226 Pm Edt Sat Apr 29 2017
Synopsis for long island waters and new york harbor.. A weak front moves through the area today into this evening. High pressure then builds in from southeastern canada into Sunday...then slowly retreats to the northeast into Monday. A warm front approaches from the southwest Sunday night...then lifts to the north Monday. A cold front crosses the tri-state from Monday night into Tuesday morning...followed by weak high pressure building in behind the front through Wednesday.

7 Day Forecast for Marine Location Near Medford, NY
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location: 40.85, -73     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 291636
afdokx
area forecast discussion
national weather service new york ny
1236 pm edt Sat apr 29 2017

Synopsis
A weak front moves through the area this afternoon through early
this evening, with high pressure briefly returning for Sunday.

A warm front will then move northward through the area on
Monday, followed by a cold front from the west Monday night into
early Tuesday morning. Weak high pressure will return for the
remainder of Tuesday into Wednesday. A frontal system approaches
from the southwest Thursday and moves along the coast through
late week.

Near term /until 6 pm this evening/
A lot of mid and high level clouds remain across the region from
morning convection. Expect some clearing through this afternoon
front moves through the area.

High temperatures remain on track as westerly winds increase and
mix to 850 mb, west downslope flow with little marine influence
will aid in well above normal temperatures across the region,
even across long island.

Short term /6 pm this evening through 6 pm Sunday/
With little to no forcing expected and best lift to the south of
the region, along with surface instability, have removed the
chances of precipitation for this evening.

As the cold front gradually moves south of the area, flow will
turn more north-northeasterly leading to a low-level inversion
and the potential for more cloud development keeping low
temperatures slightly above climatological normals. The upper
ridge centered off the southeast coast will build northward
through the Sunday, and in combination with the onshore flow
should act to strengthen the low-level inversion. A general lack
of overall forcing for ascent along with the inversion should
limit precipitation/thunderstorm chances, though if low-level
cloud cover thickens sooner than forecast some light drizzle
will be possible. Daytime temperatures will be cooler than
Saturday, with highs closer to climatological normals.

Long term /Sunday night through Friday/
Onshore flow will continue into Monday morning, with increasing
chances of light rain and/or drizzle with a developing stratus
deck. By afternoon, a warm front will move through the area with
skies briefly clearing from south to north ahead of an
approaching cold front. The front moves through Monday night
with rain and a chance of thunderstorms giving way to clearing
skies, gusty west winds and seasonable temperatures by Tuesday
afternoon. The gusty west flow and cooler temperatures will
continue into Wednesday as a secondary trough of low pressure
moves through. By Thursday, divergence aloft associated with an
elongated mid-upper low across the central us will aid in the
development of an attendant surface low across the southeast
that will gradually move northeastward through Friday. The
prolonged period of south-southwest flow will advect moisture
into the region, with increasing chances for precipitation
through the weekend.

Aviation /14z Saturday through Thursday/
A weak front pushes through the area today, followed by high
pressure building down from southeastern canada through tonight.

MainlyVFR through the TAF period, with a short period of
MVFR/ifr conditions at the coastal terminals this morning.

Winds become sw-wsw around 10kt by mid morning. The winds
continue to veer to the w-wnw with gusts around 15-20kt by
around midday. By late afternoon/early evening the winds become
nw. Wind gusts should abate by around 00z, with wind speeds
falling to under 10kt. Winds continue to veer to the N then ne
tonight with speeds under 10 kt. Most terminals will become
light and variable for at least a few hours overnight.

Outlook for 12z Sunday through Wednesday
Sunday morning Vfr.

Sunday afternoon-Monday MVFR or lower possible. SW winds
g15-20kt possible Sunday afternoon. Llws possible Sunday night
mainly at southern terminals.

Monday night Ifr or lower conditions, llws and scattered
thunderstorms are possible.

Tuesday-Wednesday Vfr. Sw-wsw winds g15-20kt possible
Tuesday. W-nw winds g20-25kt possible Wednesday.

Marine
Forecast remains on track with winds and seas.

A weak to moderate pressure gradient force over the region
through Monday will limit winds to 15 kt or less, with gusts of
20 kt or less. One of those periods of 15g20kt winds this
afternoon and evening will bring seas on the coastal ocean
waters east of fire island inlet to around 5 ft (mainly 10 or
more miles from shore). A small craft advisory for hazardous
seas remains in effect for the coastal ocean waters east of fire
island inlet from noon today through midnight tonight.

The pressure gradient increases Monday night, with 25-30kt
gusts possible. These winds will build ocean seas to 4-8 ft
Monday night. However, even with 40-50kt of winds at 950 hpa
Monday night/early Tuesday morning, will have to strong of a
marine inversion for much if any of that to mix down, so gales
are not expected then.

Winds should be 15 kt or less Tuesday and Wednesday, with a light to
moderate pressure gradient over the waters. However, seas on the
coastal ocean waters should be slow to come down, and could remain
at or above 5 ft into Wednesday, especially over the southern
portions of the coastal ocean zones.

Hydrology
No hydrologic impacts are expected through Thursday.

A low pressure system approaching from the southwest may lead to
periods of heavy rain and the potential for hydrologic impacts late
next week into the weekend.

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

Ny... None.

Nj... None.

Marine... Small craft advisory for hazardous seas until midnight edt
tonight for anz350-353.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44069 11 mi110 min SW 9.7 G 14 59°F 59°F59°F
BRHC3 - 8467150 - Bridgeport, CT 24 mi47 min SSW 8 G 12 68°F 1013.2 hPa
44039 - Central Long Island Sound 27 mi50 min S 3.9 G 5.8 54°F 53°F
NWHC3 - 8465705 - New Haven, CT 30 mi47 min SSW 9.9 G 13 62°F 52°F1013.8 hPa
KPTN6 - 8516945 - Kings Point, NY 41 mi47 min WNW 13 G 20 74°F 52°F1014 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 42 mi45 min SW 16 G 18 55°F 49°F4 ft1015.2 hPa (-1.1)

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Islip, Long Island Mac Arthur Airport, NY6 mi39 minSW 1210.00 miMostly Cloudy75°F64°F71%1014.2 hPa
Shirley, Brookhaven Airport, NY8 mi39 minSW 10 G 198.00 miFair72°F64°F79%1014.7 hPa
The Gabreski Airport, NY20 mi42 minSW 12 G 209.00 miFair70°F63°F79%1014.9 hPa
Farmingdale - Republic Airport, NY23 mi42 minSW 1010.00 miFair77°F66°F69%1014.3 hPa
Bridgeport, Sikorsky Memorial Airport, CT24 mi43 minSSW 149.00 miFair75°F62°F64%1013.6 hPa

Wind History from ISP (wind in knots)
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Last 24hrS9S8S6SW12S8SW10S7SW8SW6S3S3W4CalmCalmSW4CalmS5S7NW6SW5SW12
G20
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1 day agoS7S9S8S10SE9S11SE8SE9SE6SE6SE6SE5SE4S5S5S8S4CalmS5CalmCalm4SW5S8
2 days agoNE11NE11NE12NE7N7NE6SE3CalmNE3SE4CalmCalmW6W3CalmCalmW3CalmCalmS4SW4SW4CalmS9

Tide / Current Tables for Patchogue, Long Island, New York
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Patchogue
Click for Map
Sat -- 01:45 AM EDT     0.94 feet High Tide
Sat -- 05:52 AM EDT     Sunrise
Sat -- 08:41 AM EDT     Moonrise
Sat -- 08:53 AM EDT     -0.11 feet Low Tide
Sat -- 02:26 PM EDT     0.79 feet High Tide
Sat -- 07:46 PM EDT     Sunset
Sat -- 08:57 PM EDT     -0.05 feet Low Tide
Sat -- 11:31 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.90.90.90.70.50.30.1-0.1-0.1-00.20.50.70.80.80.70.50.30.1-0-0.100.3

Tide / Current Tables for Patchogue, Great South Bay, New York
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Patchogue
Click for Map
Sat -- 01:35 AM EDT     1.56 feet High Tide
Sat -- 05:52 AM EDT     Sunrise
Sat -- 08:34 AM EDT     -0.37 feet Low Tide
Sat -- 08:41 AM EDT     Moonrise
Sat -- 02:14 PM EDT     1.32 feet High Tide
Sat -- 07:46 PM EDT     Sunset
Sat -- 08:38 PM EDT     -0.19 feet Low Tide
Sat -- 11:31 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.51.51.410.60.2-0.1-0.3-0.3-0.10.40.81.21.31.310.70.30-0.2-0.20.10.5

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 (13,3,4,5)
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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.