Saturday, November17, 2018 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 6:41AMSunset 4:33PM Saturday November 17, 2018 10:49 PM EST (03:49 UTC) Moonrise 3:00PMMoonset 1:32AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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
    EDIT      (on/off)   Help
ANZ345 South Shore Bays From Jones Inlet Through Shinnecock Bay- 922 Pm Est Sat Nov 17 2018
Overnight..NW winds 5 to 10 kt. Waves 1 ft or less.
Sun..N winds 5 to 10 kt, becoming se 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 around 5 kt. Waves 1 ft or less. Chance of rain in the afternoon.
Mon night..N winds around 5 kt, becoming ne after midnight. Waves 1 ft or less. Chance of rain.
Tue..NE winds 5 to 10 kt, becoming nw in the afternoon. Waves 1 ft or less. Chance of rain.
Tue night..NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Wed..W winds 10 to 15 kt. Waves 1 ft or less, then around 2 ft in the afternoon.
Wed night..NW winds 15 to 20 kt. Waves around 2 ft.
Thu..NW winds 15 to 20 kt. Waves around 2 ft.
Thu night..N winds 15 to 20 kt, becoming nw 10 to 15 kt after midnight. Waves around 2 ft.
ANZ300 922 Pm Est Sat Nov 17 2018
Synopsis for the long island waters and new york harbor.. High pressure builds across the waters through Sunday. A frontal boundary will slowly move across late Sunday night into Tuesday morning, with weak areas of low pressure tracking along it. An arctic front will pass Wed night. High pres builds in from the W on thanksgiving.


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


Area Discussion for - New York City/Upton, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kokx 180229
afdokx
area forecast discussion
national weather service new york ny
929 pm est Sat nov 17 2018

Synopsis
High pressure builds across the waters through Sunday with a
weak warm front approaching Sunday night. A slow moving cold
front will drift south of the region on Monday, followed by the
passage of a weak offshore low on Tuesday. An arctic airmass
will likely build in for the end of the week.

Near term until 6 am Sunday morning
Clouds have been slow to clear this evening with abundant
stratocu across the region. Still think these clouds will
eventually scatter and thin out after midnight, but will begin
to see an increase in mid and high level clouds early Sunday
morning.

A cold front over upstate new york will work south and east,
dissipating as it passes through overnight. It will be a dry
cold frontal passage followed by high pressure building east
from the ohio valley.

Cloud cover has been holding temps warmer than previously
forecast so have adjusted hourly temperatures up a few degrees.

Lows may end up a degree or two warmer than forecast as well,
but should see lows in the upper 20s and lower 30s inland and
low to mid 30s elsewhere.

Short term 6 am Sunday morning through Sunday night
A progressive flow at the base of an upper trough over eastern
canada will send a series of weak frontal waves from the mid
mississippi valley northeast Sunday through Sunday night. Warm
advection coinciding with upper jet dynamics may allow for some
light precipitation to break out across portions of the lower
hudson valley in the afternoon, which gradually works southeast
Sunday night.

Should the precipitation arrive early enough, there is enough
dry air for some light snow across portions of the lower hudson
valley and interior southwest ct. However, weak warm advection
as the high moves offshore Sunday is forecast to warm the
boundary layer enough for a transition over to light rain
during the night. Any accumulation of snow should be light.

Advisory level snows are not expected.

Highs on Sunday will top out in the upper 30s to lower 40s.

There will be some fall off Sunday evening with temperatures
leveling off or slowly rising for the second half of the night.

Long term Monday through Saturday
A slow moving cold front will move sewd thru the area on mon. The
models suggest lgt pcpn, mainly in the form of rain. There could be
pockets of moderate pcpn N of the cold front along the mid lvl
front, so this will need to be watched for a quick dusting of snow
interior late in the day.

As the h5 trof reaches the area and shortwave energy reaches the
front, a weak low is progged to spin up then track newd. All of the
modeling indicates a band of pcpn sweeping thru the cwa. Pops have
been increased to 50 percent. The cold air looks sufficient to be
mainly snow, especially away from the coast.

Fair wx Wed with the CWA between systems. The arctic front however
arrives Wed ngt. The GFS and ECMWF both agree on this timing.

Although the models are dry, some snow shwrs cannot be ruled out.

Pops may need to be included in later forecasts.

Dry wx fcst for thanksgiving thru Sat with a 1040 or so high
building in. Temps well blw average on thanksgiving, then moderating
a bit each day thereafter. Rain possible Sat ngt as a pacific sys
approaches.

Aviation 03z Sunday through Thursday
High pressure will slowly build from the NW into Sunday morning.

The high moves offshore Sunday afternoon with a warm front
approaching Sunday night.

Vfr through Sunday afternoon. There is potential for ceilings
2500-3000 feet Sunday evening.

W-wnw winds diminish through midnight, veering to nw-n
overnight and n-ne daytime Sunday. Winds continue to veer to the
se Sunday afternoon. Speeds will be under 10 kt.

Outlook for 00z Monday through Thursday
Sunday night MVFR or lower conds possible in wintry mix
inland with chance rain elsewhere.

Monday MVFR or lower conds possible with chance of rain.

Monday night-Tuesday MVFR or lower conds possible in rain or
wintry mix Monday night into Tuesday morning, then chance of
rain Tuesday afternoon. NW winds g15-20kt in the afternoon.

Tuesday night-Wednesday Vfr. W winds g15-20kt.

Wednesday night-Thursday Vfr. NW winds 15g25kt.

Marine
Sub-sca conditions on all waters through Sunday night.

Winds and seas blw SCA lvls Mon thru wed, then an arctic front
will bring SCA and possible gales Wed ngt into thu. Winds and
seas then fall blw SCA lvls on fri.

Hydrology
Light QPF amounts of 1 4" or less are possible Sunday night
into Tuesday. No hydrologic issues are expected through
Saturday.

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... None.

Synopsis... Jmc dw
near term... Jmc ds dw
short term... Dw
long term... Jmc
aviation... Ds
marine... Jmc dw
hydrology... Jmc dw
equipment...



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44069 8 mi50 min WNW 7.8 G 12 44°F 43°F34°F
BRHC3 - 8467150 - Bridgeport, CT 25 mi38 min NW 1.9 G 4.1 43°F 51°F1024.1 hPa
NWHC3 - 8465705 - New Haven, CT 34 mi32 min WNW 6 G 7 43°F 52°F1024.5 hPa
KPTN6 - 8516945 - Kings Point, NY 35 mi32 min NNW 8.9 G 12 44°F 50°F1025.9 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 39 mi60 min WNW 18 G 21 48°F 54°F4 ft1024.8 hPa (+1.1)
44065 - Entrance to New York Harbor 44 mi30 min W 18 G 23 46°F 52°F1025.6 hPa35°F
BATN6 - 8518750 - The Battery, NY 49 mi32 min 44°F 50°F1025.3 hPa

Wind History for Bridgeport, CT
(wind in knots)    EDIT      (on/off)   Help
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last
24hr
SW7
G12
SW3
G8
SW2
G6
W5
G8
SW4
G8
W5
SW2
SW3
G8
SW4
SW5
SW3
G8
W6
G10
N6
G11
NW8
G14
NW9
G15
W6
G11
W5
G14
W4
G9
NW3
G6
NW3
W4
W4
W6
G9
NW2
G5
1 day
ago
NE12
G19
NE16
G22
NE17
G22
NE10
G17
NE13
G17
NE12
G21
NE14
G21
NE16
G25
N11
G21
NW14
G18
N11
G21
NW11
G17
NW13
G23
NW5
G10
NW12
G20
NW5
G10
N2
W6
G15
W6
G11
SW4
G12
SW9
G12
SW6
G10
SW6
G10
SW5
G9
2 days
ago
N6
NW4
N4
G7
N4
NE5
N4
G7
NE5
NE4
G7
NE7
G10
NE7
NE6
G10
NE6
NE9
G12
NE8
G12
NE8
G12
NE9
NE9
G13
NE6
G13
N8
NE12
G15
NE10
G14
NE11
G17
NE13
G16
NE12
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Islip, Long Island Mac Arthur Airport, NY1 mi54 minW 710.00 miOvercast44°F32°F63%1024.6 hPa
Shirley, Brookhaven Airport, NY13 mi54 minW 510.00 miOvercast44°F30°F60%1024.7 hPa
Farmingdale - Republic Airport, NY17 mi57 minNW 710.00 miOvercast44°F30°F60%1025 hPa

Wind History from ISP (wind in knots)
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last 24hrW6W9W9W9W10W7W8SW5SW6SW6W10NW11NW9W14
G18
W16NW17
G20
NW11W9W8W8W5W6W4W7
1 day agoNE22
G32
E19
G27
E15
G32
E19
G27
E20
G30
NE18
G25
NE14
G21
NE12
G22
N19
G25
NW23
G29
NW25
G38
NW20
G30
NW20
G31
NW12W15
G26
W16
G24
NW15W17
G22
W8W13W10W8W9W11
2 days agoN9N7N3NE3N5N5NE5NE5NE5NE9E8NE9NE9E11NE10NE11NE11NE12NE11NE10NE10NE15
G21
NE17
G24
NE16
G24

Tide / Current Tables for Sayville (Brown Creek), Long Island, New York
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Sayville (Brown Creek)
Click for Map
Sat -- 12:32 AM EST     Moonset
Sat -- 12:34 AM EST     0.09 feet Low Tide
Sat -- 06:29 AM EST     0.53 feet High Tide
Sat -- 06:41 AM EST     Sunrise
Sat -- 12:59 PM EST     0.14 feet Low Tide
Sat -- 01:59 PM EST     Moonrise
Sat -- 04:32 PM EST     Sunset
Sat -- 06:43 PM EST     0.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.10.10.20.30.40.50.50.50.50.40.30.20.20.10.20.30.40.50.50.60.50.40.30.2

Tide / Current Tables for Patchogue, Long Island, New York
   EDIT      (on/off)   Help   One Week of Data
Patchogue
Click for Map
Sat -- 12:31 AM EST     Moonset
Sat -- 12:37 AM EST     0.11 feet Low Tide
Sat -- 06:13 AM EST     0.61 feet High Tide
Sat -- 06:41 AM EST     Sunrise
Sat -- 01:02 PM EST     0.16 feet Low Tide
Sat -- 01:59 PM EST     Moonrise
Sat -- 04:32 PM EST     Sunset
Sat -- 06:27 PM EST     0.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.10.10.20.30.50.60.60.60.50.40.30.30.20.20.20.30.50.60.60.60.60.50.30.2

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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 (22,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Upton, NY
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.