Monday, November30, 2020
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L-36.com

Marine Weather and Tides
New Rochelle, NY

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:58AMSunset 4:29PM Monday November 30, 2020 9:44 PM EST (02:44 UTC) Moonrise 5:47PMMoonset 8:07AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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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ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 815 Pm Est Mon Nov 30 2020
.small craft advisory in effect from Tuesday morning through late Tuesday night...
Tonight..S winds 15 to 20 kt with gusts up to 30 kt early, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft, subsiding to 1 to 2 ft after midnight. Showers and slight chance of tstms early this evening, then chance of showers after midnight. Vsby 1 to 3 nm early this evening.
Tue..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Chance of showers.
Tue night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Wed..W winds around 15 kt with gusts up to 25 kt. Seas 1 to 2 ft.
Wed night..W winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to 2 ft.
Thu..W winds 10 to 15 kt. Seas 1 to 2 ft.
Thu night..SW winds 5 to 10 kt. Seas 1 ft or less.
Fri..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Fri night..W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Sat..NW winds 5 to 10 kt. Seas 1 ft or less.
Sat night..W winds around 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms.
ANZ300 815 Pm Est Mon Nov 30 2020
Synopsis for the long island waters and new york harbor.. A deepening area of low pressure will move north from western pa into western ny this evening. The low will meander across the eastern great lakes on Tuesday, then lifting north into southeast canada midweek, with a series of low pressure troughs pivoting through the region. High pressure builds across the mid atlantic on Thursday. The next frontal system will swing through the region Friday into Friday night, followed by the potential for a wave of low pressure near the coast or remaining offshore for the second half of the weekend.


7 Day Forecast for Marine Location Near New Rochelle, NY
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location: 40.91, -73.77     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 010149 AFDOKX

Area Forecast Discussion National Weather Service New York NY 849 PM EST Mon Nov 30 2020

SYNOPSIS. A deepening area of low pressure will move north from northwestern PA into western NY tonight. The low will meander across the eastern Great Lakes on Tuesday, then lifting north into southeast Canada midweek, with a series of low pressure troughs pivoting through the region. High pressure builds across the Mid Atlantic on Thursday. The next frontal system will swing through the region Friday into Friday night, followed by the potential for a wave of low pressure near the coast or remaining offshore for the second half of the weekend.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. For this update discontinued the high wind warning as the strongest winds have moved north and east of the region along with the low level jet core. Have allowed wind advisories to continue for just a little while longer across central and eastern CT, although one could argue that winds have fallen below wind advisory criteria here already.

Rain shower activity is already tapering quickly as dry slot moves in from the south and southwest. Overnight lows will range from the mid 40s well north and west of NYC to the low to mid 50s across far eastern Connecticut and Long Island. These temperatures are around 15 degrees above normal for the last day of November.

SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/. Large and deep closed low will slowly drift north through the eastern Great Lakes into Southern Ontario/Quebec through this time period, with an unsettled cyclonic flow over the region.

An associated cold front moves through the region Tuesday morning bringing a chance of showers, and a caa gusty WSW flow (30-35 mph). Considerable cloudiness and iso-sct diurnal instability showers will persist through the day as a secondary trough rotates through.

Temperatures on Tuesday will remain nearly steady during the day, after morning highs in the upper 40s/lower 50s.

LONG TERM /WEDNESDAY THROUGH MONDAY/. A fairly stable long wave pattern is expected throughout the extended period. To begin the period a persistent westerly flow will be in control as occluded low pressure continues to drift north across Eastern Canada. A fair amount of cloud cover is expected along with breezy and seasonably cool temperatures Wednesday into Thursday. Late Wednesday night and into Thursday high pressure off to our south and west will build and take more control of our weather with more in the way of sunshine anticipated for Thursday.

A cold front / surface trough is expected to approach from the west on Friday. There is some model disagreement as to how much moisture can move up from the south and southwest as a positively tilted trough attempts to set up for very late in the week and into the start of the weekend. For now chose to go with slight chance to low end chance POPs for late Friday into Friday night as the upper level energy and forcing mechanisms will likely get sheared and shunted to the east as the upper level pattern get somewhat out of phase. The trough however will attempt to reload and deepen later in the weekend. The exact timing of this is in doubt with the various global model camps differing a good deal with their surface progs, and thus sensible weather timing differences. For the time being, hedged with some surface ridging attempting to briefly build for much of Saturday, followed by chance POPs for Saturday night into Sunday as some coastal development attempts to get going. The ECMWF is the slowest with regard to coastal development as it keeps a confluence zone to our north close by for early in the weekend, followed by low pressure development near and offshore for late Sunday into early Monday. Confidence remains well below average for later in the extended period, thus chose to go more with a blended ensemble approach as per WPC. Temperatures should average fairly close to normal overall, with temperatures potentially turning somewhat colder into the first half of next week.

AVIATION /02Z TUESDAY THROUGH SATURDAY/. Low pressure moving through upstate New York will track slowly northward into Canada late tonight and moves little during Tuesday.

IFR, with MVFR at times this evening, with showers. Thunderstorms also likely through 02Z, mainly from the New York City terminals and west. Showers will remain possible through 06Z. Conditions improve to VFR 03Z to 06Z, and as late as 12Z at KGON.

Winds will remain S 15 to around 20 kt with gusts 25 to 30 kt. Around 04Z winds diminish to 10 to 15 kt. Gusts are then likely once again Tuesday as winds gradually become SW. Winds increase to around 15 kt with gusts mainly around 25 kt, with occasional gusts as high as 30 kt.

LLWS at 2000 ft of 50 to 60 kt ends from west to east 01Z through 09Z.

. NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty .

Amendments into late tonight with improving conditions.

OUTLOOK FOR 00Z WEDNESDAY THROUGH SATURDAY. Tuesday night. VFR SW winds G20-25kt. Wednesday. VFR. W/SW winds G20kt. Thursday. VFR. Friday and Saturday. Mainly VFR. MVFR possible with any scattered showers.

Detailed information, including hourly TAF wind component forecasts, can be found at: http:/www.weather.gov/zny/n90

MARINE. Winds will fall below gale warning this evening as the responsible low level jet moves east. Winds will likely fall below SCA level on nearshore waters, and remain marginally close for ocean waters.

10-15 ft seas on the ocean will be slow to subside tonight into Tuesday than to a long period southerly swell. 3-6 ft across the central and eastern Long Island Sound should subside fairly quickly tonight as winds subside.

Pressure gradient tightens and mixing increases Tue morning into afternoon in wake of cold front passage, with SCA gusts likely on nearshore waters, and expected on ocean waters into Tuesday night. A few marginal gale gusts possible. Seas across E LIS could build back up to 3 to 5 ft by Tue aft.

SCA conditions will likely persist on the eastern near shore waters and the ocean into Wednesday and Wednesday night, with more marginal SCA conditions likely for the western most near shore waters. Late Wednesday night into Thursday as low pressure gradually pulls further north and high pressure attempts to nose in from the southwest the winds will gradually decrease with sub SCA conditions likely returning to the waters from west to east. For Thursday night through Friday marginal SCA conditions may linger at times for the eastern ocean waters on a west to southwest flow regime and 4 to 5 ft seas. Otherwise, Sub-SCA conditions should return for the remaining waters for the end of the week.

HYDROLOGY. An additional 1/2 to 1 inch of rain is possible across E LI/SE CT this evening. Meanwhile quick 1/2 to one inch of rain is possible with an area of convection moving Lower Hud, NE NJ, and NYC metro early this evening.

Minor urban and poor drainage flooding is possible with activity in both areas. Can't rule out an isolated flashy small stream briefly exceeding it banks in NE NJ if convection maintains itself.

No hydrologic impacts are forecast at this time from Tuesday through next weekend.

TIDES/COASTAL FLOODING. There may still be some localized minor coastal flooding with the Tuesday morning high tide for the Queens and Nassau south shore back bays. Chose to go with a statement here as the tide will be a touch higher for Tuesday morning, and also due to an over performance of the high tide from earlier this evening in these places. Will also have to watch eastern great South Bay with WSW flow.

After Tuesday morning high tide, no coastal flooding is anticipated through the middle of the week.

OKX WATCHES/WARNINGS/ADVISORIES. CT . Wind Advisory until 10 PM EST this evening for CTZ006>008- 010>012. NY . None. NJ . None. MARINE . Small Craft Advisory from 10 AM Tuesday to 6 AM EST Wednesday for ANZ335-338. Gale Warning until 1 AM EST Tuesday for ANZ330-340-345-350-353- 355.

SYNOPSIS . JE/NV NEAR TERM . JE/NV SHORT TERM . FEB/NV LONG TERM . JE AVIATION . MET MARINE . JE/NV HYDROLOGY . JE/NV TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44022 - Execution Rocks 3 mi59 min S 18 G 25 60°F 60°F
KPTN6 - 8516945 - Kings Point, NY 7 mi56 min SW 15 G 17 61°F 997.1 hPa
BATN6 - 8518750 - The Battery, NY 19 mi56 min 60°F 54°F996.4 hPa
ROBN4 - 8530973 - Robins Reef, NJ 23 mi56 min S 13 G 16 60°F 995.8 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 27 mi56 min 60°F 54°F995.5 hPa
MHRN6 28 mi56 min S 8.9 G 16
SDHN4 - 8531680 - Sandy Hook, NJ 33 mi56 min S 12 G 14 59°F 997 hPa
BRHC3 - 8467150 - Bridgeport, CT 36 mi56 min S 17 G 24 63°F 53°F996.2 hPa
44065 - Entrance to New York Harbor 38 mi44 min S 14 G 19 56°F996.7 hPa (+1.7)
44069 39 mi59 min SSW 23 G 29 60°F 57°F

Wind History for Kings Point, NY
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New York, La Guardia Airport, NY11 mi53 minS 76.00 miLight Rain63°F57°F81%995.9 hPa
White Plains - Westchester County Airport, NY12 mi48 minS 8 G 166.00 miLight Drizzle Fog/Mist61°F57°F90%996.2 hPa
New York City, Central Park, NY14 mi53 minS 65.00 miLight Rain Fog/Mist61°F57°F87%995.8 hPa
Teterboro, Teterboro Airport, NJ15 mi53 minS 104.00 miRain Fog/Mist61°F57°F90%995.1 hPa
New York, Kennedy International Airport, NY17 mi53 minS 138.00 miLight Rain59°F59°F100%997 hPa
Farmingdale - Republic Airport, NY23 mi51 minSSW 17 G 2610.00 miOvercast62°F57°F86%997.6 hPa

Link to 5 minute data for KLGA

Wind History from LGA (wind in knots)
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Last 24hrSW7S5S5S3CalmNE4NE5NE8NE7E9SE18
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1 day agoNW8NW7NW10NW6W4NW6SW4CalmW6S4S3SW7SW3CalmE4SW5SW8SW9SW6S7S7S5SW6S7
2 days agoNW9NW9NW9NW7N5N6W5NW5NW4W4CalmCalmW83W5W8W14
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Tide / Current Tables for Mamaroneck, New York
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Mamaroneck
Click for Map
Mon -- 04:32 AM EST     Full Moon
Mon -- 04:53 AM EST     0.77 feet Low Tide
Mon -- 06:59 AM EST     Sunrise
Mon -- 07:06 AM EST     Moonset
Mon -- 10:50 AM EST     7.72 feet High Tide
Mon -- 04:27 PM EST     Sunset
Mon -- 04:46 PM EST     Moonrise
Mon -- 05:41 PM EST     0.04 feet Low Tide
Mon -- 11:28 PM EST     6.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.85.73.71.80.90.81.12.24.36.47.57.77.46.44.52.20.70.20.10.72.44.66.36.9

Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
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Throg's Neck
Click for Map
Mon -- 02:23 AM EST     0.00 knots Slack
Mon -- 04:32 AM EST     Full Moon
Mon -- 05:32 AM EST     0.92 knots Max Flood
Mon -- 06:59 AM EST     Sunrise
Mon -- 07:06 AM EST     Moonset
Mon -- 08:16 AM EST     -0.00 knots Slack
Mon -- 11:42 AM EST     -0.68 knots Max Ebb
Mon -- 02:26 PM EST     0.00 knots Slack
Mon -- 04:28 PM EST     Sunset
Mon -- 04:47 PM EST     Moonrise
Mon -- 05:55 PM EST     0.97 knots Max Flood
Mon -- 08:43 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-0.4-0.10.10.40.80.90.40.1-0.1-0.4-0.6-0.7-0.5-0.10.10.30.710.70.2-0.1-0.3-0.5

Weather Map
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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
Ground Weather Radar Station Upton, NY
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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 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.