Wednesday, August5, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Roslyn Harbor, NY

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:54AMSunset 8:07PM Wednesday August 5, 2020 9:28 PM EDT (01:28 UTC) Moonrise 9:37PMMoonset 7:39AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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
ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 719 Pm Edt Wed Aug 5 2020
Tonight..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less.
Thu..E winds 5 to 10 kt. Seas 1 ft or less.
Thu night..E winds 5 to 10 kt. Seas 1 ft or less. Chance of showers after midnight.
Fri..NE winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Fri night..NE winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the evening.
Sat..NE winds around 5 kt, becoming E in the afternoon. Seas 1 ft or less.
Sat night..S winds around 5 kt, becoming W after midnight. Seas 1 ft or less.
Sun..NW winds around 5 kt, becoming sw in the afternoon. Seas 1 ft or less.
Sun night..SW winds 5 to 10 kt. Seas 1 ft or less.
Mon..SW winds 5 to 10 kt. Seas 1 ft or less.
Mon night..SW winds 5 to 10 kt. Seas 1 ft or less.
ANZ300 719 Pm Edt Wed Aug 5 2020
Synopsis for the long island waters and new york harbor.. A weak cold front will push offshore tonight and stall just south of the area on Thursday. A series of frontal waves will then track along the boundary Thursday night through early Saturday. High pressure builds into the area for Sunday and Monday.


7 Day Forecast for Marine Location Near Roslyn Harbor, NY
   Hourly   EDIT   Help
location: 40.82, -73.65     debug


Area Discussion for - New York City/Upton, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KOKX 060003 AFDOKX

Area Forecast Discussion National Weather Service New York NY 803 PM EDT Wed Aug 5 2020

SYNOPSIS. A weak cold front will push offshore tonight and stall just south of the area on Thursday. A series of frontal waves will then track along the boundary Thursday night through early Saturday. High pressure builds into the area for Sunday and Monday.

NEAR TERM /UNTIL 6 AM THURSDAY MORNING/. Drier air was moving into the region behind a cold front, and dew points were lowering quickly. Also, cu was gradually dissipating. Updated temperatures and dew points for current conditions.

An upper low will lift northeast across eastern Canada tonight into Friday morning before heading out into the north Atlantic. At the surface, a weak cold front will move through the area tonight with high pressure building in from the west. A dry, capped airmass will result in a dry frontal passage. The front stalls just to the south of the area on Thursday.

SW winds this evening will become light northerly overnight. Lows will be near normal with readings ranging from the lower 60s inland to around 70 at the coast.

There is a high rip current risk at the ocean beaches through this evening.

SHORT TERM /6 AM THURSDAY MORNING THROUGH FRIDAY/. Expecting a mainly dry day on Thursday as shortwave ridging builds across the area ahead of a weak upper trough moving into the Ohio Valley. There is some weak mid level shortwave energy in the SW flow aloft tomorrow with some of the guidance hinting at the potential for a few showers north and west of NYC. Preference at this time is to keep it out of the forecast area with dry air in the subcloud layer and little if any instability.

Mid level clouds will be on the increase with mostly cloudy skies anticipated by Thursday afternoon. The stalled frontal boundary to the south will then steer a series of frontal waves across the area Thursday night into Friday. Chances for showers will increase Thursday night into Friday with the potential for an isolated thunderstorm on Friday. Instability is limited due to cloud cover and an easterly flow.

There is some uncertainty with the northward extent of the rain with the GFS the most bullish of the guidance with half an inch to an inch of rainfall at the coast. The ECMWF and NAM are a bit more suppressed and took a middle road approach looking at quarter to half inch at the coast and less inland.

The cloud cover and showers will keep highs near 80 both days with lows in the mid 60s to around 70.

There is a moderate risk of rip currents at the ocean beaches on Thursday.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. A nearly stationary frontal boundary will be south of Long Island Friday night as surface waves of low pressure move along the boundary. Meanwhile, and mid and upper level short waves will be moving into the region by 12Z Saturday. This wave will move out the stalled frontal boundary early Saturday as the trough axis passes east around 18Z Saturday. Consensus is indicating a chance of precipitation into Friday night, and shifting east into early Saturday. There will be sufficient CAPE and instability along the front for isolated to scattered thunderstorms.

Upper ridging builds behind the shortwave later Saturday into the beginning of next week, 12Z Monday. A weak and low amplitude shortwave moves through Monday and may trigger showers and thunderstorms. Surface instability and CAPE will be increasing during the day with daytime heating. Lapse rates will also be steep enough for convection. Heat and humidity will be building Tuesday into Wednesday as return flow remains. However, increasing clouds and the chance of precipitation may limit the heat Wednesday. With a large closed low over southeastern Canada Tuesday into Wednesday a surface cold front will be approaching and may stall in the area Wednesday.

There is a moderate risk of rip currents at the ocean beaches on Friday.

AVIATION /00Z THURSDAY THROUGH MONDAY/. A weak cold front will move south of Long Island tonight and stall offshore Thursday. Low pressure wave approaches along the front Thursday night into Friday.

VFR conditions are expected through Thursday with a chance for MVFR in showers Thursday night, mainly late. S-SW winds will be near 10 kt into the middle of this evening and then less than 10 kt through the rest of the TAF period. Wind direction will be variable late tonight and then more E-SE for Thursday before becoming variable again Thursday night.

OUTLOOK FOR 00Z FRIDAY THROUGH MONDAY. Thursday night. Chance of rain showers. Chance of MVFR, mainly late. Friday. Chance of rain showers. Isolated thunderstorms. Chance of MVFR. Saturday-Monday. Mainly VFR.

MARINE. Sub-SCA conditions are forecast on the waters to close out the week. A series of weak frontal waves will then impact the waters with showers (possibly a thunderstorm) Thursday night into early Saturday.

High pressure then builds into the waters into the beginning of next week. Winds and seas will remain below SCA levels across all the forecast waters through Monday night.

HYDROLOGY. No significant hydrologic impacts are expected into early next week.

EQUIPMENT. KBDR ASOS is not reporting at this time due to a power outage.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . High Rip Current Risk until 9 PM EDT this evening for NYZ075- 080-081-178-179. NJ . None. MARINE . None.

SYNOPSIS . MET/DW NEAR TERM . MET/DW SHORT TERM . DW LONG TERM . MET AVIATION . JM MARINE . MET/DW HYDROLOGY . MET/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
KPTN6 - 8516945 - Kings Point, NY 6 mi59 min NW 6 G 11 81°F 1017.3 hPa
44022 - Execution Rocks 6 mi59 min W 7.8 G 9.7 79°F 66°F
44040 - Western Long Island Sound 10 mi104 min WNW 7.8 G 12 79°F 65°F
BATN6 - 8518750 - The Battery, NY 21 mi59 min 81°F 77°F1016.9 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 29 mi59 min 82°F 78°F1016.7 hPa
MHRN6 30 mi59 min W 9.9 G 13
44065 - Entrance to New York Harbor 31 mi39 min SSW 5.8 G 5.8 73°F3 ft1016.3 hPa
44069 31 mi74 min W 9.7 G 14 77°F 70°F
SDHN4 - 8531680 - Sandy Hook, NJ 31 mi59 min WNW 7 G 8.9 79°F 78°F1017.3 hPa
BRHC3 - 8467150 - Bridgeport, CT 35 mi59 min WNW 4.1 G 11 81°F 76°F1015.9 hPa
44025 - LONG ISLAND 33 NM South of Islip, NY 47 mi49 min S 7.8 G 9.7 73°F1016.5 hPa

Wind History for Kings Point, NY
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
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
Last
24hr
W8
G11
SW9
SW10
SW11
G14
SW6
SW5
G9
W7
W5
SW2
NW2
SW4
NW4
W2
NW5
NW7
NW7
NW6
NW6
NW10
NW12
NW10
G13
NW10
G15
NW13
G16
NW11
G14
1 day
ago
S8
E4
SE3
S4
S4
S5
NE3
SE3
NW10
G13
E4
E6
E4
S11
G14
S11
G17
S10
G18
S13
G19
S25
G41
S41
G55
SW22
G33
W22
G32
W27
G37
W23
G31
W16
G20
W12
G16
2 days
ago
SW14
SW11
G16
SW10
G13
SW12
SW12
SW8
G11
SW7
NW7
G11
NW11
G14
NW9
NW9
G12
NW8
W8
W7
NW6
NW6
NW9
W8
W13
W9
G14
SW8
G11
SW15
SW10
SW12

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New York, La Guardia Airport, NY12 mi38 minWNW 810.00 miPartly Cloudy84°F57°F41%1016.5 hPa
New York, Kennedy International Airport, NY13 mi38 minS 410.00 miPartly Cloudy74°F69°F85%1017 hPa
Farmingdale - Republic Airport, NY14 mi36 minSSW 610.00 miFair78°F66°F67%1017 hPa
New York City, Central Park, NY17 mi38 minno data10.00 mi80°F59°F49%1016.8 hPa
White Plains - Westchester County Airport, NY18 mi33 minW 510.00 miFair74°F57°F57%1016.5 hPa
Teterboro, Teterboro Airport, NJ21 mi38 minW 510.00 miFair78°F61°F56%1016.3 hPa

Link to 5 minute data for KLGA

Wind History from LGA (wind in knots)
10
PM
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
Last 24hrSW7S10SW10W9SW6SW8SW7SW7W5W74N3CalmNW7W12
G16
W7W10
G16
W8W10SW10W8W13W8W8
1 day ago3NE4E6S5S4SE3E5E10CalmNE8NE8SE13
G16
SE14
G20
E22
G28
E26
G36
SE30
G52
S38
G51
S19
G33
SW19
G29
SW29
G45
W23
G29
SW11
G22
SW10
G19
SW9
2 days agoS11S9S10S10SW8
G15
W14
G18
W14
G20
W8W10W9W9W7W7SW56SW12
G20
SW13
G18
SW11SW13
G18
S11S13
G18
S10S8S9

Tide / Current Tables for Port Washington, Manhasset Bay, Long Island Sound, New York (2)
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Port Washington
Click for Map
Wed -- 01:29 AM EDT     8.10 feet High Tide
Wed -- 05:55 AM EDT     Sunrise
Wed -- 07:39 AM EDT     Moonset
Wed -- 08:12 AM EDT     -0.01 feet Low Tide
Wed -- 01:55 PM EDT     7.68 feet High Tide
Wed -- 08:05 PM EDT     Sunset
Wed -- 08:21 PM EDT     0.46 feet Low Tide
Wed -- 09:37 PM EDT     Moonrise
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
7.48875.12.91.40.500.42.24.76.57.47.77.25.63.51.80.90.50.724.4

Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
   EDIT      (on/off)   Help   One Week of Data
Throg's Neck
Click for Map
Wed -- 01:28 AM EDT     -0.73 knots Max Ebb
Wed -- 04:45 AM EDT     0.00 knots Slack
Wed -- 05:55 AM EDT     Sunrise
Wed -- 07:32 AM EDT     0.98 knots Max Flood
Wed -- 07:40 AM EDT     Moonset
Wed -- 10:41 AM EDT     -0.00 knots Slack
Wed -- 01:50 PM EDT     -0.74 knots Max Ebb
Wed -- 05:01 PM EDT     0.00 knots Slack
Wed -- 07:57 PM EDT     1.00 knots Max Flood
Wed -- 08:05 PM EDT     Sunset
Wed -- 09:37 PM EDT     Moonrise
Wed -- 11:08 PM EDT     -0.00 knots Slack
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
-0.5-0.7-0.7-0.4-0.10.10.40.90.90.50.2-0.1-0.4-0.6-0.7-0.5-0.2-00.30.710.70.30

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS 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 (21,6,7,8)
      (on/off)   Help

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

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 numerous 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.