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Marine Weather and Tides
Version 3.4 |
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. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:59AM | Sunset 6:08PM | Wednesday October 16, 2019 6:39 PM EDT (22:39 UTC) | Moonrise 7:58PM | Moonset 9:30AM | Illumination 89% |  |
ANZ340 Peconic And Gardiners Bays- 353 Pm Edt Wed Oct 16 2019
.gale warning in effect through Thursday evening...
Tonight..SE winds 20 to 25 kt with gusts up to 35 kt, becoming E 25 to 30 kt with gusts up to 45 kt late this evening, then becoming sw with gusts up to 45 kt after midnight, becoming W with gusts up to 40 kt late. Waves 3 to 5 ft. Isolated tstms this evening. Rain until early morning, then chance of rain late. Vsby 1 to 3 nm until early morning.
Thu..W winds 25 to 30 kt with gusts up to 40 kt. Waves 2 to 4 ft. Chance of showers.
Thu night..W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt after midnight. Waves 2 to 4 ft.
Fri..NW winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft.
Fri night..NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft in the evening, then 1 ft or less.
Sat..NW winds around 10 kt, becoming W in the afternoon. Waves 1 ft or less.
Sat night..SW winds 5 to 10 kt. Waves 1 ft or less.
Sun..SW winds 5 to 10 kt. Waves 1 ft or less.
Sun night..SW winds 5 to 10 kt, becoming N after midnight. Waves 1 ft or less.
Mon..E winds 5 to 10 kt. Waves 1 ft or less.
Mon night..SE winds 10 to 15 kt. Waves 2 to 3 ft. Chance of showers in the evening, then showers likely after midnight. Winds and waves higher in and near tstms.
.gale warning in effect through Thursday evening...
Tonight..SE winds 20 to 25 kt with gusts up to 35 kt, becoming E 25 to 30 kt with gusts up to 45 kt late this evening, then becoming sw with gusts up to 45 kt after midnight, becoming W with gusts up to 40 kt late. Waves 3 to 5 ft. Isolated tstms this evening. Rain until early morning, then chance of rain late. Vsby 1 to 3 nm until early morning.
Thu..W winds 25 to 30 kt with gusts up to 40 kt. Waves 2 to 4 ft. Chance of showers.
Thu night..W winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt after midnight. Waves 2 to 4 ft.
Fri..NW winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft.
Fri night..NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft in the evening, then 1 ft or less.
Sat..NW winds around 10 kt, becoming W in the afternoon. Waves 1 ft or less.
Sat night..SW winds 5 to 10 kt. Waves 1 ft or less.
Sun..SW winds 5 to 10 kt. Waves 1 ft or less.
Sun night..SW winds 5 to 10 kt, becoming N after midnight. Waves 1 ft or less.
Mon..E winds 5 to 10 kt. Waves 1 ft or less.
Mon night..SE winds 10 to 15 kt. Waves 2 to 3 ft. Chance of showers in the evening, then showers likely after midnight. Winds and waves higher in and near tstms.
ANZ300 353 Pm Edt Wed Oct 16 2019
Synopsis for the long island waters and new york harbor.. Rapidly deepening low pressure lifts north across the area this evening and then tracks more slowly across new england late tonight through Thursday. Meanwhile, high pressure will build to the west and move over the region Friday, remaining through the weekend. Another frontal system affects the area Monday night through Tuesday.
Synopsis for the long island waters and new york harbor.. Rapidly deepening low pressure lifts north across the area this evening and then tracks more slowly across new england late tonight through Thursday. Meanwhile, high pressure will build to the west and move over the region Friday, remaining through the weekend. Another frontal system affects the area Monday night through Tuesday.
7 Day Forecast for Marine Location Near Springs, NY
Hourly EDIT Helplocation: 41.04, -72.19 debug
Area Discussion for - New York City/Upton, NY
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kokx 162047 afdokx area forecast discussion national weather service new york ny 447 pm edt Wed oct 16 2019 Synopsis Rapidly deepening low pressure lifts north across the area this evening and then tracks slowly across new england late tonight through Thursday. High pressure will build into the region Friday, remaining through the weekend. Another frontal system affects the area Monday night through Tuesday, followed by high pressure for the mid week. Near term through Thursday A very dynamic system will feature a coupling upper jet structure, as a frontal wave undergoes explosive coastal development this evening into the overnight. Models are in good agreement with the overall evolution and track with subtle timing and intensity issues. The southern branch jet energy pivoting off the mid atlantic coast this evening takes the upper trough negative and eventually closes off a new upper low across new england by morning. Moderate to heavy frontal band rains will work across the area this evening and then transition to comma head rains as the low wraps up. This will result in widespread rainfall amounts of 2 to 3 inches, but possibly as high as 3 to 4 inches in banded rain to the north and west of the low track. The low has continued to trend north and west the last couple of days, with the operational suite now in close agreement of a track across western sections of long island and connecticut. This would keep the axis of heaviest rainfall across the lower hudson valley, sw ct, and northeast nj. Still though, the frontal band, subtrop moisture, and anomalous upper jet (3 to 4 sd), all point to heavy rain both with the warm conveyor belt ahead of the deepening low and in the wraparound. Gridded FFG values for NE nj are 2 to 2 1 2 inches. Thus, a flash flood watch remains in effect for NE nj. Elsewhere, there is a lower probability of flash flooding for urban, poor drainage, and low lying areas. Much of the rain falls in 6 to 8 hour window and then wraps up between 10 pm and midnight western sections, to as late 2 am far east. Comma head rains may linger across northern portions of the lower hudson valley and interior southwest ct several hours longer. Additionally, a robust LLJ on the front end and back side of the low this evening may briefly produce 40 to 50 kt gusts. The best chance may be on the back side of the low with a sting jet signature. A prolonged wind advisory level event then follows for the remainder of the night into Thursday with frequent gusts up to 40 kt. Thus, a wind advisory is in effect for the entire area. Cold advection and cyclonic flow will keep plenty of clouds around on Thursday. There will also be some scattered low-top showers with steep low-level lapse rates. Overnight lows will range from the upper 40s to lower 50s, generally a few degrees above normal. Highs on Thursday will below normal behind the low with the cold advection, ranging |
from the mid 50s to around 60. Short term Thursday night Low pressure over northern new england will gradually weaken as it lifts up into the canadian maritimes. As a result, winds will gradually subside through the night, but still gusting 20 to 30 mph. Lows will generally be in the 40s, fairly homogeneous with the airmass remaining well mixed. Long term Friday through Wednesday Low pressure continues to move away from the area, moving into the canadian maritimes, while high pressure builds into the area on Friday. There will continue be a strong pressure gradient between the low and incoming high, so conditions will still be rather breezy, with winds diminishing in the afternoon. Gusts of 25 to 30 mph are possible. A northwest flow will keep temperatures near or just below normal across the area on Friday, with highs in the upper 50s to around 60. Similar temperatures are expected on Saturday. Mainly dry conditions expected with high pressure moving overhead and offshore over the weekend. The one concern is that the GFS is developing an area of low pressure off the coast of the carolinas, then heading northeast. Although this is an outlier, there is enough uncertainty to have low end slight chance pops across most of the tri-state. The forecast area will be on the northern fringe of this possible storm, also warranting slight chance pops. This coastal low is reflected in the ECMWF and canadian, however, it makes little headway over the southeast u.S., but the retreating high noses back into the area, keeping the area mostly dry through Sunday night. The ECMWF does bring in some precipitation on the northern fringe Sunday night, so although dry right now, slight chance pops are possible Sunday night. A more potent system may impact the area Monday into Tuesday, with a period of moderate to briefly heavy rain. It is too far out to pin down any details at this time. Aviation 20z Wednesday through Monday ***high impact rain and wind event into Thursday*** an intensifying low pressure system will approach the west this evening and move across the region tonight. Clouds will continue to lower and thicken with MVFR CIGS at many of the terminals. Rain has begun to overspread the region, mainly in the form of showers west of nyc. Steadier rain will move in through 22-23z. The rain will be heavy at times, before tapering off around 04-06z but MVFR CIGS around 3000 ft may remain through the remainder of the TAF period. There is a low chance of thunder this evening, however chances are too low to include in the tafs at this time. Se winds continue to increase this evening, with gusts at or above 30 kt likely by late evening tonight. Direction will vary as the low tracks over and through the area. Winds become westerly behind the system late tonight, and remain so through Thursday. Gusts 35-40 kt will be possible on Thursday. Ny metro enhanced aviation weather support... detailed information, including hourly TAF wind component forecasts, can be found at: http: |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| MTKN6 - 8510560 - Montauk, NY | 12 mi | 51 min | 62°F | 62°F | 1003.5 hPa | |||
| LDLC3 - New London Ledge CT - Ledge Light Weather | 19 mi | 39 min | E 26 G 30 | 61°F | 1002.4 hPa (+2.0) | 57°F | ||
| NLNC3 - 8461490 - New London, CT | 23 mi | 51 min | E 13 G 19 | 60°F | 62°F | 1003.8 hPa | ||
| NWHC3 - 8465705 - New Haven, CT | 42 mi | 51 min | ESE 9.9 G 16 | 60°F | 61°F | 1001.4 hPa |
Wind History for New London, CT
(wind in knots) EDIT (on/off) Help| 7 PM | 8 PM | 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 | |
| Last 24hr | W | N | N | N | N | N | N | N | N G8 | N | N | N G11 | N G11 | N G10 | N | SE G14 | SE G14 | SE G19 | SE G17 | SE G15 | E G16 | E G15 | E G17 | E G16 |
| 1 day ago | SW | SW | SW G5 | SW | NW G5 | N | N | N | N | N | N G8 | NW | N G11 | N | N G6 | N | N G6 | N | N G7 | N | NE | NW G6 | W G11 | W |
| 2 days ago | -- | W | N | N | N | N | N | N G7 | N | N | N | N | N | N | N | N | N | N | SW | S | SW G9 | S | S | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Montauk, Montauk Airport, NY | 15 mi | 3.8 hrs | E 9 G 19 | mi | 62°F | 55°F | 80% | 1009.3 hPa | |
| Groton / New London, Groton / New London Airport, CT | 21 mi | 43 min | E 15 G 21 | 10.00 mi | Overcast | 60°F | 55°F | 84% | 1003.7 hPa |
Link to 5 minute data for KHTO
Wind History from HTO (wind in knots)
| 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | -12 PM | 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 | |
| Last 24hr | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | SE | SE | SE G16 | SE G14 | SE | SE G14 | SE G17 | E G21 | E G23 |
| 1 day ago | SW | SW | SW | W | Calm | N | NW | NW | NW | NW | N | Calm | Calm | N | N | N | N | N | N | W | NW | NW | Calm | Calm |
| 2 days ago | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | W | Calm | Calm | Calm | SW | S | SW | S |
Tide / Current Tables for Threemile Harbor entrance, Gardiners Bay, Long Island, New York
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Tide / Current Tables for The Race, Long Island Sound, New York Current
EDIT (on/off) Help One Week of DataThe Race
Click for Map
Wed -- 01:26 AM EDT -0.01 knots Slack
Wed -- 04:29 AM EDT -2.85 knots Max Ebb
Wed -- 07:00 AM EDT Sunrise
Wed -- 07:29 AM EDT 0.01 knots Slack
Wed -- 09:29 AM EDT Moonset
Wed -- 10:26 AM EDT 2.81 knots Max Flood
Wed -- 01:34 PM EDT -0.00 knots Slack
Wed -- 04:50 PM EDT -3.18 knots Max Ebb
Wed -- 06:06 PM EDT Sunset
Wed -- 07:56 PM EDT Moonrise
Wed -- 08:02 PM EDT 0.01 knots Slack
Wed -- 10:53 PM EDT 2.66 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:26 AM EDT -0.01 knots Slack
Wed -- 04:29 AM EDT -2.85 knots Max Ebb
Wed -- 07:00 AM EDT Sunrise
Wed -- 07:29 AM EDT 0.01 knots Slack
Wed -- 09:29 AM EDT Moonset
Wed -- 10:26 AM EDT 2.81 knots Max Flood
Wed -- 01:34 PM EDT -0.00 knots Slack
Wed -- 04:50 PM EDT -3.18 knots Max Ebb
Wed -- 06:06 PM EDT Sunset
Wed -- 07:56 PM EDT Moonrise
Wed -- 08:02 PM EDT 0.01 knots Slack
Wed -- 10:53 PM EDT 2.66 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 1.7 | 0.6 | -0.7 | -2 | -2.7 | -2.7 | -1.9 | -0.7 | 0.7 | 1.9 | 2.7 | 2.7 | 1.9 | 0.7 | -0.6 | -1.9 | -2.9 | -3.2 | -2.6 | -1.4 | -0.1 | 1.3 | 2.3 | 2.7 |
Weather Map
(on/off) Help Weather Map
GEOS Local Image of Northeast 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 (18,4,5,8)
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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 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. |