Friday, May24, 2019 L-36.com


Marine Weather and Tides
Ronkonkoma, 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 5:26AMSunset 8:12PM Friday May 24, 2019 5:12 AM EDT (09:12 UTC) Moonrise 12:34AMMoonset 10:26AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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- 320 Am Edt Fri May 24 2019
.small craft advisory in effect through this evening...
Today..NW winds 10 to 15 kt. Gusts up to 25 kt, increasing to 30 kt this afternoon. Waves around 2 ft.
Tonight..N winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt after midnight. Waves 1 ft or less.
Sat..SW winds around 5 kt, becoming S in the afternoon. Waves 1 ft or less.
Sat night..S winds 10 to 15 kt. Waves 1 ft or less, then around 2 ft after midnight. Chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Waves around 2 ft in the morning, then 1 ft or less. Chance of showers and tstms in the morning.
Sun night..W winds around 10 kt, becoming N after midnight. Waves 1 ft or less.
Mon..N winds around 5 kt, becoming S around 5 kt in the afternoon. Waves 1 ft or less.
Mon night..S winds 5 to 10 kt. Waves 1 ft or less.
Tue..S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 1 ft or less, then around 2 ft in the afternoon. Chance of showers and tstms.
Tue night..SW winds 10 to 15 kt. Waves around 2 ft. Chance of showers and tstms. Winds and waves higher in and near tstms.
ANZ300 320 Am Edt Fri May 24 2019
Synopsis for the long island waters and new york harbor.. A cold front moves south of the forecast waters early this morning. High pressure builds to the west of the waters, then builds over the waters tonight. The high moves off the mid atlantic coast Saturday. A warm front passes early Sun, followed by a cold front Sun night. High pres builds in for Mon. A warm front reaches the area on Tue.


7 Day Forecast for Marine Location Near Ronkonkoma, NY
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location: 40.81, -73.11     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 240838
afdokx
area forecast discussion
national weather service new york ny
438 am edt Fri may 24 2019

Synopsis
High pressure builds toward the region today, moving overhead
tonight. The high then moves off the mid atlantic coast
Saturday. A cold frontal passage Sunday night will be followed
by the return of a warm front during the beginning of next week.

Near term until 6 pm this evening
The sub tropical ridge will build back into the region through
today as a departing shortwave moves into the western atlantic.

Subsidence will be increasing through the day with drying
conditions. A deep northwest flow will be gusty as the pressure
gradient force between the departing low and building high
remains strong. Mixing will be fairly deep, 900 to 850 mb, with
frequent gusts between 20 and 30 kt. Winds diminish late in the
afternoon as mixing become more limited with increasing
subsidence. Temperatures will be fairly uniform across the
region, and leaned toward warmer highs.

Short term 6 pm this evening through 6 pm Saturday
The ridge builds through tonight and then begins to flatten
Saturday as the next northern stream shortwave moves into the
upper midwest and great lakes region. Winds will become near
calm to light and variable as surface high pressure builds into
the region. And with nearly clear conditions radiational cooling
will be nearly ideal. A return flow develops Saturday, however,
with weak warm advection and increasing clouds highs will be
only slightly higher then Friday, and cooler at the coast with
an onshore flow.

There is a low risk for the development of rip currents
Saturday.

Long term Saturday night through Thursday
A warm front is timed for Sat ngt. The nam, GFS and ECMWF all
have this timing. This will produce a round of shwrs and tstms
across the cwa. High chance to likely pops have been included in
the fcst. The area warms up on Sun with wly llvl flow ahead of
the next cdfnt Sun ngt. Temps may hit 90 in the usual hot spots
of nern nj. If the wly flow does indeed keep the sea breeze off,
most areas may verify abv guidance and the current fcst. Low
chances for pcpn with the front Sun ngt. The models are pretty
dry for the cwa, with the best activity S of the region.

Memorial day looks dry ATTM with hipres ridging swd thru the
cwa. The next chance for shwrs and tstms comes Tue with another
warm front. The boundary may linger in the vicinity thru the
rest of the fcst period, so low chances for shwrs and tstms were
included. Temps were close to the nbm thru the extended. A mini
heatwave is possible Wed thu, although it is too far out to
have high confidence in occurrence or timing.

There is a moderate risk for the development of rip currents
Sunday.

Aviation 09z Friday through Tuesday
High pressure builds in behind a departing cold front.

Vfr. W winds bcmg NW after sunrise. Winds eventually increase to 15-
20 kt with gusts 25-30 kt by noon before gradually weakening in the
evening.

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
44069 8 mi43 min W 9.7 G 12 65°F 64°F64°F
BRHC3 - 8467150 - Bridgeport, CT 25 mi49 min Calm G 1 62°F 55°F1007 hPa
NWHC3 - 8465705 - New Haven, CT 34 mi43 min SSW 1.9 G 2.9 60°F 58°F1007.2 hPa
KPTN6 - 8516945 - Kings Point, NY 35 mi43 min NW 7 G 9.9 66°F 59°F1009.7 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 39 mi83 min W 16 G 18 63°F 57°F5 ft1008.3 hPa (+0.0)
44065 - Entrance to New York Harbor 44 mi43 min W 12 G 14 63°F 58°F1009 hPa61°F
BATN6 - 8518750 - The Battery, NY 49 mi43 min 67°F 59°F1009.1 hPa

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Islip, Long Island Mac Arthur Airport, NY1 mi17 minWSW 69.00 miFair63°F63°F100%1007.9 hPa
Shirley, Brookhaven Airport, NY13 mi17 minW 510.00 miFair65°F61°F87%1007.7 hPa
Farmingdale - Republic Airport, NY17 mi20 minW 610.00 miFair66°F62°F87%1008.5 hPa

Wind History from ISP (wind in knots)
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1 day agoW3NW3NW12N11N10N12NW9
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2 days agoNW9NW11
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Tide / Current Tables for Patchogue, Long Island, New York
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Patchogue
Click for Map
Fri -- 12:33 AM EDT     Moonrise
Fri -- 03:46 AM EDT     0.75 feet High Tide
Fri -- 05:27 AM EDT     Sunrise
Fri -- 10:26 AM EDT     Moonset
Fri -- 10:34 AM EDT     0.08 feet Low Tide
Fri -- 04:27 PM EDT     0.63 feet High Tide
Fri -- 08:10 PM EDT     Sunset
Fri -- 10:37 PM EDT     0.18 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.50.60.70.70.70.60.40.30.20.10.10.20.30.40.50.60.60.50.40.30.20.20.2

Tide / Current Tables for Sayville (Brown Creek), Long Island, New York
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Sayville (Brown Creek)
Click for Map
Fri -- 12:34 AM EDT     Moonrise
Fri -- 04:02 AM EDT     0.65 feet High Tide
Fri -- 05:27 AM EDT     Sunrise
Fri -- 10:26 AM EDT     Moonset
Fri -- 10:31 AM EDT     0.07 feet Low Tide
Fri -- 04:43 PM EDT     0.54 feet High Tide
Fri -- 08:10 PM EDT     Sunset
Fri -- 10:34 PM EDT     0.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New York City/Upton, NY (5,6,7,8)
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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.