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Marine Weather and Tides
Version 3.4 |
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 5:20AM | Sunset 8:14PM | Monday May 27, 2019 7:42 AM EDT (11:42 UTC) | Moonrise 2:11AM | Moonset 1:18PM | Illumination 40% |  |
ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 533 Am Edt Mon May 27 2019
Today..NW winds 5 to 10 kt, becoming sw late. Seas 1 ft or less.
Tonight..S winds 5 to 10 kt, becoming E after midnight. Seas 1 ft or less.
Tue..E winds 5 to 10 kt, becoming se 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon. Showers likely in the afternoon with vsby 1 to 3 nm.
Tue night..SE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Showers likely, mainly in the evening with vsby 1 to 3 nm.
Wed..E winds around 5 kt, becoming se around 5 kt in the afternoon. Seas 1 ft or less.
Wed night..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Thu..SW winds 5 to 10 kt. Seas 1 ft or less.
Thu night..SW winds 5 to 10 kt. Seas 1 ft or less. Showers likely with chance of tstms.
Fri..W winds 5 to 10 kt. Seas 1 ft or less.
Fri night..W winds 5 to 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms.
Today..NW winds 5 to 10 kt, becoming sw late. Seas 1 ft or less.
Tonight..S winds 5 to 10 kt, becoming E after midnight. Seas 1 ft or less.
Tue..E winds 5 to 10 kt, becoming se 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon. Showers likely in the afternoon with vsby 1 to 3 nm.
Tue night..SE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Showers likely, mainly in the evening with vsby 1 to 3 nm.
Wed..E winds around 5 kt, becoming se around 5 kt in the afternoon. Seas 1 ft or less.
Wed night..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Thu..SW winds 5 to 10 kt. Seas 1 ft or less.
Thu night..SW winds 5 to 10 kt. Seas 1 ft or less. Showers likely with chance of tstms.
Fri..W winds 5 to 10 kt. Seas 1 ft or less.
Fri night..W winds 5 to 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms.
ANZ300 533 Am Edt Mon May 27 2019
Synopsis for the long island waters and new york harbor.. Weak high pressure will build in for today. A warm front approaching late tonight into Tuesday will briefly stall across the area as weak low pressure moves along the front. A cold front moves through Tuesday night. Weak high pressure is then expected for Wednesday with a surface trough on Thursday, then a cold front moving through Thursday night into Friday morning.
Synopsis for the long island waters and new york harbor.. Weak high pressure will build in for today. A warm front approaching late tonight into Tuesday will briefly stall across the area as weak low pressure moves along the front. A cold front moves through Tuesday night. Weak high pressure is then expected for Wednesday with a surface trough on Thursday, then a cold front moving through Thursday night into Friday morning.
7 Day Forecast for Marine Location Near Westbrook Center, CT
Hourly EDIT Helplocation: 41.27, -72.47 debug
Area Discussion for - New York City/Upton, NY
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kokx 271106 afdokx area forecast discussion national weather service new york ny 706 am edt Mon may 27 2019 Synopsis Weak high pressure will build in for today. A warm front approaching late tonight into Tuesday will briefly stall across the area as weak low pressure moves along the front. A cold front moves through Tuesday night. Weak high pressure is then expected for Wednesday with a surface trough on Thursday, then a cold front moving through Thursday night into Friday morning. Weak high pressure then dominates through Saturday morning with a couple of systems potentially affecting Saturday afternoon through Sunday. Near term until 6 pm this evening Minor update to clear clouds faster per recent satellite imagery. Otherwise forecast remains on track. Brief deep layer ridging will build into the region, with subsidence allowing for mostly sunny skies. Although temperatures will continue to be above normal, the post-frontal air mass will be about 5 to 10 degrees cooler than Sunday's highs, generally reaching the 70s to lower 80s. Expect sea breezes to develop along coastal areas later in the day as northwest flow slackens. Short term 6 pm this evening through Tuesday night Warm advection steadily begins to increase into tonight with the approach of a short wave trough and attendant surface low. Increasing cloud cover will maintain above normal lows in the 50s across outlying areas, to lower 60s in the more metropolitan areas. Thereafter, a first round of showers is expected as a weak vorticity maximum moves through. A brief lull into the early evening may occur. There is then significant uncertainty as to where the warm front will progress during the evening, though recent deterministic runs have trended slightly farther north, placing northeastern nj and potentially portions of nyc and the lower hudson valley into the warm sector. Hi-resolution scenarios have been hinting at more significant convection developing on the cold front, which may be enhanced if a decent amount of clearing can occur in the wake of the initial shower activity. Flow will be backed in the vicinity of the warm frontal boundary, and with northwest flow aloft remaining strong, will lead to SRH values not often seen here, and deep layer bulk shear values around 50-60 kt. Additionally, mid level lapse rates should be around 6.0-6.5 c km. The progression of the warm front will need to be closely monitored, as there is |
certainly potential for supercells in the vicinity of and to the south of the warm front. Otherwise, a brief period of heavy rainfall is possible as the cold front moves through, with everything then quickly clearing after about midnight. Lingering cloud cover will once again lead to overnight lows that will be above climatological normals. There will be a moderate risk for rip currents at the atlantic beaches for Tuesday. Long term Wednesday through Sunday Weak high pressure replaces a weak low exiting east on Wednesday. Models seem to agree that it's fairly dry above 850mb and with nva dominating through most of the day. Shortwave energy and a surface trough approach late in the day and may be enough to trigger a shower or thunderstorm mainly over the western half of the tri-state area. Chances increase and spread east Wednesday night with these features moving in along with deepening moisture. The temperature forecast is a little tricky, but it appears there's building convergence towards the warmer side of guidance during this period. For Thursday the trough exits east in the morning, but thermal troughing appears to gain strength inland ahead of the next cold front. Showers tstms possible, but mainly in the afternoon and more so at night. Still too early to be certain, but potential shear and cape values could aid in strong storms should tstms occur. Timing for the cold front appears to be either late Thursday night or Friday morning. Will leave in low pops Friday morning to cover this uncertainty, but will then go with a dry weather in the afternoon. A zonal flow and a weak surface high then probably maintains dry weather Friday night into Saturday morning. A wave of low pressure may then form along a stalled boundary to our south and bring chances of showers and storms Saturday afternoon and night. The next cold front then brings more chances of showers and storms on Sunday. High temperatures from Thursday on are expected to be above normal. Aviation 11z Monday through Friday High pressure builds today. Vfr forecast through the the TAF period. Winds remain northerly into the afternoon around 10 kt. S-se seabreezes are expected for south coastal terminals in the afternoon. Winds diminish this evening. 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 |
| LDLC3 - New London Ledge CT - Ledge Light Weather | 21 mi | 47 min | N 18 G 19 | 66°F | 1011.4 hPa | 53°F | ||
| NLNC3 - 8461490 - New London, CT | 21 mi | 48 min | N 6 G 8.9 | |||||
| NWHC3 - 8465705 - New Haven, CT | 23 mi | 48 min | NE 4.1 G 7 | 65°F | 61°F | 1012.7 hPa | ||
| MTKN6 - 8510560 - Montauk, NY | 31 mi | 48 min | 61°F | 59°F | 1011.4 hPa | |||
| BRHC3 - 8467150 - Bridgeport, CT | 38 mi | 48 min | N 5.1 G 7 | 65°F | 55°F | 1012.2 hPa | ||
| 44017 - 23 Nautical Miles Southwest of Montauk Point, NY | 46 mi | 42 min | NNW 5.8 G 7.8 | 60°F | 56°F | 1011.8 hPa | 53°F |
Wind History for New London, CT
(wind in knots) EDIT (on/off) Help| 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 | 4 AM | 5 AM | 6 AM | |
| Last 24hr | SW G7 | SW | W G9 | W | SW | SW G12 | SW G16 | SW G14 | SW G15 | SW G14 | SW G11 | SW G11 | SW G10 | SW G13 | W G7 | W G6 | W G7 | NE | N | N G8 | N | N | N G9 | N G5 |
| 1 day ago | NE | W | SW | S G8 | S G10 | SW G10 | S G11 | SW G15 | SW G13 | S G11 | SW G13 | SW G12 | SW G11 | SW G13 | SW G11 | S | SW G10 | SW G7 | SW G9 | SW G13 | SW G9 | S G8 | SW G6 | SW G5 |
| 2 days ago | W G8 | W G20 | NW G19 | NW G13 | NW G20 | NW G19 | N G23 | N G17 | NW G18 | N G22 | N G14 | N G19 | N G12 | N G9 | N G8 | N G9 | E | E G10 | E G7 | N | -- | -- | -- | -- |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Chester, Chester Airport, CT | 8 mi | 47 min | Var 4 | 10.00 mi | Fair | 66°F | 51°F | 60% | 1012.9 hPa |
| New Haven, Tweed-New Haven Airport, CT | 22 mi | 49 min | N 5 | 10.00 mi | Fair | 66°F | 54°F | 65% | 1012.3 hPa |
| Groton / New London, Groton / New London Airport, CT | 23 mi | 1.8 hrs | N 7 | 10.00 mi | Fair | 65°F | 51°F | 61% | 1011.1 hPa |
Wind History from SNC (wind in knots)
| 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 PM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | |
| Last 24hr | G10 | G12 | G10 | SW | SW | S G16 | SW | SW G13 | SW | G10 | W | NW | NW | NW | NW | N | NW | N | N G12 | |||||
| 1 day ago | NW | Calm | SW | SW | W | SW G16 | SW G13 | SW | G14 | S G16 | S | S | S | S G12 | S G12 | SW G13 | S | S | S | S | SW | Calm | Calm | |
| 2 days ago | NW G22 | NW G27 | NW G33 | NW G22 | N G20 | N G25 | NW G24 | NW G21 | N G27 | N G23 | N G21 | N | N G14 | N G15 | N G14 | NW | Calm | S | SW | Calm | Calm | Calm | Calm |
Tide / Current Tables for Westbrook, Duck Island Roads, Connecticut
EDIT Weekend mode (on/off) (on/off) Help One Week of DataWestbrook
Click for Map
Mon -- 02:10 AM EDT Moonrise
Mon -- 05:22 AM EDT Sunrise
Mon -- 05:59 AM EDT 3.89 feet High Tide
Mon -- 12:11 PM EDT 0.70 feet Low Tide
Mon -- 01:17 PM EDT Moonset
Mon -- 06:31 PM EDT 4.06 feet High Tide
Mon -- 08:12 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:10 AM EDT Moonrise
Mon -- 05:22 AM EDT Sunrise
Mon -- 05:59 AM EDT 3.89 feet High Tide
Mon -- 12:11 PM EDT 0.70 feet Low Tide
Mon -- 01:17 PM EDT Moonset
Mon -- 06:31 PM EDT 4.06 feet High Tide
Mon -- 08:12 PM EDT Sunset
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 |
| 0.9 | 1.2 | 1.8 | 2.5 | 3.2 | 3.7 | 3.9 | 3.7 | 3.1 | 2.3 | 1.6 | 1 | 0.7 | 0.9 | 1.4 | 2.1 | 2.9 | 3.6 | 4 | 4 | 3.6 | 2.9 | 2.1 | 1.4 |
Tide / Current Tables for The Race, Long Island Sound, New York Current
EDIT (on/off) Help One Week of DataThe Race
Click for Map
Mon -- 12:45 AM EDT 0.00 knots Slack
Mon -- 02:09 AM EDT Moonrise
Mon -- 03:25 AM EDT 1.78 knots Max Flood
Mon -- 05:20 AM EDT Sunrise
Mon -- 06:46 AM EDT -0.00 knots Slack
Mon -- 09:49 AM EDT -2.28 knots Max Ebb
Mon -- 01:08 PM EDT 0.00 knots Slack
Mon -- 01:16 PM EDT Moonset
Mon -- 03:56 PM EDT 2.01 knots Max Flood
Mon -- 07:25 PM EDT -0.00 knots Slack
Mon -- 08:10 PM EDT Sunset
Mon -- 10:22 PM EDT -2.27 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 12:45 AM EDT 0.00 knots Slack
Mon -- 02:09 AM EDT Moonrise
Mon -- 03:25 AM EDT 1.78 knots Max Flood
Mon -- 05:20 AM EDT Sunrise
Mon -- 06:46 AM EDT -0.00 knots Slack
Mon -- 09:49 AM EDT -2.28 knots Max Ebb
Mon -- 01:08 PM EDT 0.00 knots Slack
Mon -- 01:16 PM EDT Moonset
Mon -- 03:56 PM EDT 2.01 knots Max Flood
Mon -- 07:25 PM EDT -0.00 knots Slack
Mon -- 08:10 PM EDT Sunset
Mon -- 10:22 PM EDT -2.27 knots Max Ebb
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 |
| -0.7 | 0.2 | 1.2 | 1.7 | 1.7 | 1.3 | 0.7 | -0.2 | -1.3 | -2.1 | -2.3 | -1.9 | -1.1 | -0.2 | 0.9 | 1.8 | 2 | 1.8 | 1.3 | 0.4 | -0.6 | -1.7 | -2.2 | -2.1 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 (7,2,3,4)
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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. |