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Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 5:58AM | Sunset 7:39PM | Saturday April 21, 2018 3:25 AM EDT (07:25 UTC) | Moonrise 10:37AM | Moonset 12:46AM | Illumination 34% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 948 Pm Edt Fri Apr 20 2018 Tonight..NW winds 15 to 20 kt with occasional gusts up to 25 kt, diminishing to around 10 kt after midnight. Seas 1 ft or less. Sat..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less. Sat night..N winds 5 to 10 kt. Seas 1 ft or less. Sun..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less. Sun night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less. Mon..N winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less. Mon night..S winds 5 to 10 kt, becoming sw after midnight. Seas 1 ft or less. Tue..S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 ft or less. Tue night..SE winds 5 to 10 kt. Seas 1 ft or less. Chance of rain after midnight. Wed..E winds 10 to 15 kt. Seas around 2 ft. Rain likely. Wed night..E winds 10 to 15 kt, becoming ne 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Rain likely, mainly in the evening. | ANZ300 948 Pm Edt Fri Apr 20 2018 Synopsis for the long island waters and new york harbor.. High pressure builds in from the west through tonight and remains over the waters through Monday. A coastal low approaches from the southeastern seaboard Tuesday, and moves through Wednesday, and to the northeast of the area Thursday. |
7 Day Forecast for Marine Location Near Middle, CT
Hourly EDIT Helplocation: 41.56, -72.65 debug
Area Discussion for - New York City/Upton, NY
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kokx 210555 afdokx area forecast discussion national weather service new york ny 155 am edt Sat apr 21 2018 Synopsis High pressure builds in from the west through tonight, then remains over the region into Monday. A coastal low will likely affect the region the middle of next week. Near term until 6 am this morning Forecast is on track with only minor changes made. An upper longwave trough along the eastern canadian coast and extending into the northeast remains through tonight with a northwest cyclonic flow. Meanwhile surface low pressure along the canadian coast tracks northeast as high pressure builds to the west. The atmosphere will remain dry and cloud-free tonight. Winds will be diminishing, and likely decouple late tonight. This will allow for good radiational cooling with clear conditions. Inland areas will likely see patchy to areas of frost and included in the weather forecast. However, the spring frost freeze program has not begun across these areas. Short term 6 am this morning through 6 pm Sunday The upper trough remains across the northeast through Saturday night as the center of the surface high builds into the northeast. The weather will remain quiet and cloud free. Cyclonic flow and weak cold advection continue through Saturday night, however, the airmass will be modifying under full sun, and highs Saturday will be approaching normal levels. Saturday night will be cloud-free with light winds and again there will be ideal radiational cool conditions. So, expect areas and patchy frost inland. Long term Sunday night through Friday Upper air pattern will very much resemble early springtime as an upper low over the mississippi valley slowly works east on the heels of a departing northern branch trough over the northeast. Ridging both aloft and at the surface builds across the region to start the week but then gives way to the aforementioned southern branch close low. The system will lift northward in response to a northern branch shortwave trough moving into the upper midwest and great lakes, sending surface low pressure up the eastern seaboard Tuesday into Wednesday. Overrunning rains are forecast to develop across the area Tuesday night and continue into Wednesday night. There are some differences thereafter though with the global models as the ecwmf is more progressive with this system and dries things out for the end of week, while the GFS and ggem close off the northern branch trough with unsettled conditions lingering until a cold frontal passage Friday night. Thus, will maintain a low chance of showers for the end of the week. The point to be made here there is clearly uncertainty in the guidance for the end of the week as northern branch shortwave energy dives southeast across the upper midwest and great lakes region. However, all the global models are pointing to amplification of the ridge out west and the trough reestablishing itself across the east by next weekend. As for temperatures, much of the period will feature seasonable temperatures with the exception of Wednesday, where onshore flow will keep highs several degrees below normal. |
Aviation 06z Saturday through Wednesday High pressure will build in through the TAF period.VFR conditions are expected. Winds will be near 10 kt or less through much of the TAF period mainly from W to NW direction. The winds will initially be NW going into early Saturday and then back to a more westerly direction during the afternoon with some SW flow as a sea breeze for some terminals. Also for this afternoon into early evening, there will be some wind gusts to 15-20 kt. The timing and duration of any sea breezes is uncertain with wind direction possibly varying about 20-40 degrees comparing observed to forecast for Saturday afternoon. The timing of the SW flow could also be 2-3 hours off from forecast. Outlook for 06z Sunday through Wednesday Saturday night through Tuesday Vfr. Tuesday night through Wednesday MVFR or lower conditions increasingly likely with rain. Marine High pressure continues to build into the waters from the west with the pressure gradient force gradually weakening. Seas on the ocean waters have subsided to below SCA levels. Also, winds and gusts were generally below SCA levels, especially across the open ocean waters. However, through early this evening occasional nearshore gusts may reach 25 kt. With frequent gusts and seas below SCA levels the SCA was cancelled. High pressure will be across the forecast waters Saturday and Saturday night with winds and seas remaining below SCA levels. Tranquil conditions are forecast Sunday through Tuesday as high pressure builds across the waters. However, low pressure moving up the eastern seaboard Tuesday into Wednesday will result in increasing winds and building seas with SCA conditions likely to return by Wednesday morning. Hydrology Dry conditions are expected through early next week. A widespread rainfall is expected for the middle of next week with the possibility moderate to heavy rain. Predictability is low on rainfall amounts and hydrologic impacts at this time. Equipment Nyc NOAA weather radio station kwo-35 (162.55 mhz) remains off the air. Okx watches warnings advisories Ct... None. Ny... None. Nj... None. Marine... None. Synopsis... Met dw near term... Jp met short term... Met long term... Dw 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 Temp | Water Temp | Waves | Pressure | DewPt |
| NWHC3 - 8465705 - New Haven, CT | 24 mi | 37 min | N 4.1 G 8 | 45°F | 1027.5 hPa | |||
| 44039 - Central Long Island Sound | 29 mi | 40 min | NW 14 G 16 | 41°F | 1 ft | |||
| NLNC3 - 8461490 - New London, CT | 33 mi | 37 min | NNW 1.9 G 4.1 | 43°F | 1026 hPa | |||
| LDLC3 - New London Ledge CT - Ledge Light Weather | 35 mi | 30 min | NW 8 G 9.9 | 38°F | 26°F | |||
| BRHC3 - 8467150 - Bridgeport, CT | 39 mi | 43 min | NW 1.9 G 4.1 | 42°F | 1027.1 hPa |
Wind History for New Haven, CT
(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 | NW G12 | NW G10 | NW G14 | N G15 | N G25 | N G28 | NW G28 | N G23 | N G21 | N G22 | NW G22 | N G19 | NW G23 | NW G20 | N G20 | N G20 | N G19 | N G20 | N G21 | N G14 | N G17 | N G8 | N G8 | N G5 |
| 1 day ago | E | N | -- | NE | NE | NE G8 | NE G5 | NE G7 | NE G7 | N | NW | NW G14 | N G17 | N | NW G15 | NW G17 | NW G22 | N G20 | NW G16 | NW G13 | NW G14 | NW | NW G17 | NW G15 |
| 2 days ago | NW | W | W | W G13 | NW G18 | W G19 | NW G17 | NW G17 | NW G18 | NW G17 | NW | NW G17 | SW | SW | NW G15 | NW G9 | NW | NW | W | S | -- | -- | E |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Meriden, Meriden Markham Municipal Airport, CT | 10 mi | 32 min | SSE 3 | 10.00 mi | Fair | 32°F | 25°F | 75% | 1027 hPa |
| Hartford, Hartford-Brainard Airport, CT | 12 mi | 32 min | N 0 | 10.00 mi | Fair | 35°F | 28°F | 76% | 1027 hPa |
| Chester, Chester Airport, CT | 14 mi | 30 min | NW 7 | 10.00 mi | Fair | 36°F | 24°F | 65% | 1026.4 hPa |
| New Haven, Tweed-New Haven Airport, CT | 23 mi | 32 min | NNW 4 | 10.00 mi | Fair | 39°F | 25°F | 57% | 1027.2 hPa |
Wind History from MMK (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 24hr | NW | NW | NW | NW | NW | NW G22 | NW G22 | NW G22 | NW G24 | NW G19 | NW G26 | NW G18 | N | NW G19 | NW G23 | NW G22 | NW | NW G22 | NW G21 | NW | NW | NW | NW | S |
| 1 day ago | Calm | N | Calm | S | Calm | N | N | Calm | N | NW | Calm | NW | W | NW | NW | NW | NW | NW G21 | NW G18 | NW | NW | NW G20 | NW | NW |
| 2 days ago | W | Calm | SW | S | SW | SW G17 | W G17 | W G16 | G14 | W | NW G26 | NW G17 | NW | W | W | W | W | W | W | Calm | Calm | Calm | Calm | NW |
Tide / Current Tables for Middletown, Connecticut River, Connecticut
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Middletown Click for MapNote: Tidal information only applies during low river stages. Sat -- 12:43 AM EDT 0.23 feet Low Tide Sat -- 12:46 AM EDT Moonset Sat -- 05:50 AM EDT 2.63 feet High Tide Sat -- 06:01 AM EDT Sunrise Sat -- 10:37 AM EDT Moonrise Sat -- 01:39 PM EDT -0.08 feet Low Tide Sat -- 06:30 PM EDT 2.06 feet High Tide Sat -- 07:37 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 0.3 | 0.3 | 0.7 | 1.4 | 2.1 | 2.5 | 2.6 | 2.5 | 2.2 | 1.7 | 1.3 | 0.8 | 0.3 | -0 | -0 | 0.4 | 1.1 | 1.7 | 2 | 2 | 1.9 | 1.5 | 1.2 | 0.9 |
Tide / Current Tables for Rocky Hill, Connecticut
EDIT (on/off) Help One Week of Data| Rocky Hill Click for Map Sat -- 12:46 AM EDT Moonset Sat -- 01:46 AM EDT 0.29 feet Low Tide Sat -- 06:01 AM EDT Sunrise Sat -- 06:38 AM EDT 2.52 feet High Tide Sat -- 10:37 AM EDT Moonrise Sat -- 02:41 PM EDT 0.00 feet Low Tide Sat -- 07:26 PM EDT 1.93 feet High Tide Sat -- 07:37 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 0.5 | 0.3 | 0.3 | 0.7 | 1.4 | 2.1 | 2.4 | 2.5 | 2.3 | 2 | 1.5 | 1.1 | 0.7 | 0.3 | 0.1 | 0 | 0.5 | 1.1 | 1.6 | 1.9 | 1.9 | 1.7 | 1.4 | 1.1 |
Weather Map and Satellite Images
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GOES 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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for New York City/Upton, NY (3,6,7,8)
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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. |