Friday, August14, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Nyack, 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 6:03AMSunset 7:56PM Friday August 14, 2020 4:05 AM EDT (08:05 UTC) Moonrise 1:18AMMoonset 4:42PM Illumination 21% Phase: Waning Crescent; Moon at 25 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- 1031 Pm Edt Thu Aug 13 2020
Overnight..NE winds around 5 kt. Seas 1 ft or less. Patchy fog late with vsby 1 to 3 nm.
Fri..E winds 5 to 10 kt. Seas 1 ft or less. Patchy fog in the morning with vsby 1 to 3 nm.
Fri night..E winds 5 to 10 kt, becoming ne 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 ft or less.
Sat..NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Sat night..NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Sun..NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft in the morning, then 1 ft or less. Chance of rain. Vsby 1 to 3 nm.
Sun night..NE winds 5 to 10 kt. Seas 1 ft or less. Chance of rain. Vsby 1 to 3 nm.
Mon..N winds 5 to 10 kt, becoming nw in the afternoon. Seas 1 ft or less. Chance of showers.
Mon night..W winds 5 to 10 kt. Seas 1 ft or less.
Tue..W winds 5 to 10 kt. Seas 1 ft or less.
Tue night..W winds 5 to 10 kt, becoming N after midnight. Seas 1 ft or less.
ANZ300 1031 Pm Edt Thu Aug 13 2020
Synopsis for the long island waters and new york harbor.. A slow moving cold front will slide south of long island this evening. The front moves further south Friday into Friday night as a wave of low pressure rides along it. High pressure builds across new england on Saturday. The high may move east on Sunday, allowing a warm front to approach, followed by a cold front on Monday. High pressure may return on Tuesday.


7 Day Forecast for Marine Location Near Nyack, NY
   Hourly   EDIT   Help
location: 41.1, -73.91     debug


Area Discussion for - New York City/Upton, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KOKX 140247 AFDOKX

Area Forecast Discussion National Weather Service New York NY 1047 PM EDT Thu Aug 13 2020

SYNOPSIS. A slow moving cold front will slide south of Long Island this evening. The front moves further south Friday into Friday night as a wave of low pressure rides along it. A Ridge over eastern Canada shifts east Saturday as a shortwave advances towards southern New York from the west. The shortwave merges with the approaching longwave trough from the Great Lakes late this weekend. The longwave trough remains stationary through mid week next week.

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/. Forecast is on track with only minor change to the forecast made to reflect current conditions.

The cold front has sagged just south of Long Island and surface obs indicate a light northerly flow developing. This front is likely to remain just south of Long Island this evening as a shortwave passes to the south and east. Any precipitation should stay to the south, closer to the frontal boundary overnight

High pressure tries to build across New England out of southeast Canada overnight, with some drier air beginning to work into the region from the north. Mostly cloudy to overcast skies are forecast this evening as the shortwave passes, but there should be some partial clearing inland overnight. Closer to the coast, mostly cloudy skies are likely to persist through the night. Some low stratus and patchy fog is also possible given the weak flow behind the front and the likelihood that the drier low levels stay to the north.

Lows will be in the 60s inland and in the lower 70s closer to the coast.

SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/. A wave of low pressure develops along the stalled front to the south. The trend in the model guidance over the last several runs is to keep this wave well to the south. There may be a brief passing shower in the morning as E-NE flow begins to increase, but otherwise most locations will be dry Friday morning. The E flow in the afternoon may provide some upslope convergent flow north and west of NYC for a brief passing shower as well. Have confined PoPs to slight chance with this potential. There is also a chance that low stratus may hang on for a portion of the day near the coast. Otherwise, a near seasonable day is in store with temperatures in the lower to middle 80s.

High pressure continues to ridge down across New England Friday night as a stronger wave of low pressure passes along the front to the south. The NE flow between these two systems will keep us dry with low temperatures in the 60s for most locations.

LONG TERM /SATURDAY THROUGH THURSDAY/. During the morning Saturday the ridge centered in eastern Canada dominates the overall flow regime as the associated high pressure system continues to promote relatively dry northeasterly winds. As the day progresses into the afternoon, the focus becomes more on the approaching shortwave trough exiting the Ohio River Valley. Over the weekend mid-level moisture returns to southern New York as this system approaches. Winds veer slightly and precipitable water values increase to around 2 inches. Models are indicating possible enhanced isentropic lift along the warm front late Sunday. Total QPF from these showers and possible thunderstorms is hard to pin down as amounts will be highly contingent on the location of the heavy rainfall axis. At the moment models are keeping the heaviest rainfall south of Long Island. However if the system drifts north rain amounts ranging between 1 to 2 inches total across southern New York, northeast New Jersey and southern Connecticut are not out of the questions. This means isolated flash flooding will again be possible late this weekend. Areas not affected by rainfall will see cloudy skies and temperatures in the upper 70s.

The primary longwave trough over the Great Lakes Region pivots through New York early next week. This dynamic lift from this trough may induce additional showers to start the week, but precipitable water values hover around 1.4 to 1.5 inches. Any showers in this environment should be light to moderate. As the trough axis exits New England mid week, locally long range models are depicting some slight surface ridge from a possible 1017 mb high above Pennsylvania. Subsidence should keep rain chances to a minimum but uncertainty still exists whether or not this holds through Thursday. More confidence in high temperatures which should persist in the low 80s through the week.

There is a moderate risk of Rip Currents on Saturday.

AVIATION /03Z FRIDAY THROUGH TUESDAY/. A weak cold front south of Long Island will dissipate overnight.

Winds are expected to be very light tonight at 10kt or less E-NE, but may become light and variable for a majority of the night for most terminals. E-NE winds re- develop on Friday, generally near 10 kt, with coastal terminals shifting just south of E Friday afternoon.

Potential for stratus developing late tonight, with MVFR conditions possible after 06Z. The best chances for MVFR conditions are KISP, KGON, and KJFK. Any stratus should lift by 14Z-15Z.

Finally, There is a low chance for fog tonight. KHPN may see some MVFR fog, but that area of fog has been diminishing. Elsewhere, the most likely places for fog are the coastal terminals, with the highest chances at KISP. However, it chances were too low to include in any of the TAFs.

OUTLOOK FOR 00Z SATURDAY THROUGH WEDNESDAY. Friday night. slight chance of showers with MVFR or lower conditions, mainly NYC metros/KSWF. Saturday. VFR. Sunday-Monday. Mainly VFR, except MVFR or lower in any showers/tstms. Tuesday-Wednesday. VFR.

MARINE. A weak pressure gradient tonight through Friday brings sub-SCA conditions. Easterly flow then increases Friday night. Northeast winds 17-19 kts increase to 22 to 25 kts Saturday into Sunday as a system approaches as a wave of low pressure passes offshore. SCA conditions will be likely as seas increase to near 6 feet over the ocean. Winds begin to relax late Sunday however waves may remain at or around 5 feet through Monday morning. Sub SCA conditions with light west winds 5- 10 kts begin Tuesday before shifting south by the middle of the week.

HYDROLOGY. No hydrologic impacts are expected through Saturday.

Precipitable water values could be around 2 inches Sunday into Monday as a warm front with heavy rain moves slowly over southern New York. QPF values between 1 to 2 inches with isolated higher amounts are not out of the question. Nuisance to minor flooding could be possible in any showers and thunderstorms, primarily in urban and other poor drainage areas.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . None. NJ . None. MARINE . None.

SYNOPSIS . DJ/DS NEAR TERM . DS SHORT TERM . JP/DS LONG TERM . DJ AVIATION . JP MARINE . DJ/DS HYDROLOGY . DJ/DS


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
44022 - Execution Rocks 18 mi50 min NNE 5.8 G 7.8 74°F 74°F
KPTN6 - 8516945 - Kings Point, NY 21 mi47 min E 1 G 2.9 74°F 1017.6 hPa
BATN6 - 8518750 - The Battery, NY 28 mi47 min 76°F 75°F1017 hPa
ROBN4 - 8530973 - Robins Reef, NJ 32 mi47 min N 2.9 G 4.1 76°F 1016.8 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 34 mi47 min 75°F 79°F1017.1 hPa
MHRN6 34 mi47 min N 4.1 G 5.1
BRHC3 - 8467150 - Bridgeport, CT 39 mi47 min NNE 2.9 G 4.1 72°F 78°F1016.8 hPa
SDHN4 - 8531680 - Sandy Hook, NJ 44 mi47 min NE 4.1 G 5.1 75°F 79°F1017.3 hPa

Wind History for Kings Point, NY
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
Last
24hr
S1
--
NE3
E3
G6
NE3
NE4
NE8
E4
G7
NE10
NE6
E6
G9
E2
G5
E5
SW2
G6
NE3
E4
G8
E3
NE3
--
NE2
SE1
SE1
NE6
NE3
G7
1 day
ago
S5
S7
SW7
NE1
SW2
E4
NE6
NE5
NE5
NE5
NE6
S8
G12
W8
G11
W9
NE2
NE4
S2
S3
S4
S6
S3
S4
S1
E4
2 days
ago
S6
S3
S4
SW6
SW8
SW7
SW10
SW11
SW13
SW12
G15
SW15
SW16
G24
SW11
SW16
SW18
SW15
SW14
G17
SW13
SW13
G16
SW11
SW7
S9
S5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
White Plains - Westchester County Airport, NY10 mi69 minWNW 510.00 miOvercast71°F68°F90%1017.1 hPa
Teterboro, Teterboro Airport, NJ18 mi74 minN 39.00 miOvercast74°F71°F91%1016.6 hPa
New York, La Guardia Airport, NY22 mi74 minNE 510.00 miMostly Cloudy76°F71°F85%1016.8 hPa
New York City, Central Park, NY22 mi74 minNNE 39.00 mi75°F70°F84%1017 hPa

Link to 5 minute data for KHPN

Wind History from HPN (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
Last 24hrN5N5N4N5NE4NE43NE3S3NE5CalmE4E3SE3NE5S3E3SE3CalmCalmCalmCalmCalmNW5
1 day agoCalmCalmCalmCalmCalmCalmE3CalmCalmE4S4E5S7S5CalmS4CalmCalmCalmCalmCalmCalmW3N4
2 days agoNW3CalmCalmCalmSE3CalmS4SE9S8S11SE14S12
G17
S10
G22
S12
G19
S6SE10
G16
S7
G16
S5S6S5S5S3CalmCalm

Tide / Current Tables for Tarrytown, Hudson River, New York (2)
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tarrytown
Click for Map
Fri -- 01:17 AM EDT     Moonrise
Fri -- 01:18 AM EDT     0.83 feet Low Tide
Fri -- 06:04 AM EDT     Sunrise
Fri -- 06:52 AM EDT     2.65 feet High Tide
Fri -- 01:09 PM EDT     0.75 feet Low Tide
Fri -- 04:42 PM EDT     Moonset
Fri -- 07:01 PM EDT     3.33 feet High Tide
Fri -- 07:54 PM EDT     Sunset
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
1.10.80.91.422.42.62.62.52.11.61.20.90.80.91.52.32.93.23.33.22.92.31.7

Tide / Current Tables for Haverstraw (Hudson River), New York Current
   EDIT      (on/off)   Help   One Week of Data
Haverstraw (Hudson River)
Click for Map
Fri -- 01:07 AM EDT     -1.07 knots Max Ebb
Fri -- 01:17 AM EDT     Moonrise
Fri -- 05:00 AM EDT     0.00 knots Slack
Fri -- 06:04 AM EDT     Sunrise
Fri -- 06:37 AM EDT     0.44 knots Max Flood
Fri -- 09:21 AM EDT     -0.00 knots Slack
Fri -- 01:16 PM EDT     -1.01 knots Max Ebb
Fri -- 04:42 PM EDT     Moonset
Fri -- 04:53 PM EDT     0.00 knots Slack
Fri -- 07:04 PM EDT     0.75 knots Max Flood
Fri -- 07:55 PM EDT     Sunset
Fri -- 10:14 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
-0.9-1.1-1-0.8-0.5-00.40.40.30.1-0.3-0.6-0.9-1-0.9-0.7-0.40.10.60.80.70.50.1-0.4

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 (4,6,7,8)
      (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.