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Marine Weather and Tides
Version 3.4 |
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. 5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds. |
| Sunrise 5:15AM | Sunset 8:30PM | Friday June 23, 2017 1:15 PM EDT (17:15 UTC) | Moonrise 5:00AM | Moonset 7:58PM | Illumination 0% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 1003 Am Edt Fri Jun 23 2017 Today..S winds 10 to 15 kt. Seas 1 ft or less, then around 2 ft this afternoon. Scattered showers late this morning and early afternoon. Isolated tstms early this afternoon, then isolated showers and tstms late. Tonight..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. Chance of tstms. Sat..SW winds 10 to 15 kt. Gusts to 20 kt in the morning. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 nm. Sat night..NW winds 5 to 10 kt. Seas 1 ft or less. Sun..SW winds 5 to 10 kt. Seas 1 ft or less. Sun night..W winds 5 to 10 kt. Seas 1 ft or less. Mon..W winds 5 to 10 kt. Seas 1 ft or less. Tue..SW winds 5 to 10 kt, becoming W after midnight. Seas 1 ft or less. Winds and seas higher in and near tstms. | ANZ300 1003 Am Edt Fri Jun 23 2017 Synopsis for the long island waters and new york harbor.. A cold front approaches tonight and moves across the area Saturday. A series of weak fronts move through the area Sunday through early next week. |
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 231423 afdokx area forecast discussion national weather service new york ny 1023 am edt Fri jun 23 2017 Synopsis A warm front will be well north of the region today. A cold front approaches tonight and moves across the area Saturday. A series of frontal boundaries will move across the tri-state area Sunday through Tuesday. A large area of high pressure builds in thereafter. Near term until 6 pm this evening Adjusted pops for showers late this morning into start of the afternoon to be more confined with the higher coverage towards nyc and to the north and west. This is consistent with the mesoscale models forecast of reflectivity in the same time window. To the east, expecting mainly dry conditions to continue. Temperatures were adjusted slightly higher to better match observed trends this morning. Otherwise, no other remarkable changes made to the forecast database. The region will be between bermuda ridging and deepening northern stream longwave trough across the north central us today... With one distinct southern stream shortwave riding northeast this morning and then several weaker vorts riding northeast later today. At the surface... A warm front washes out pushes north of the region this morning... With likely pre- frontal trough development in the lee of the appalachians this afternoon. Deep southwest flow with sub-tropical connection will result in an increasingly moist and humid airmass working into the region today. The initial shortwave rides north through the region this morning into early afternoon. LLJ forcing weakens as this activity works towards the region... But a marginally unstable and moist airmass in place should support scattered shower and isolated thunderstorm activity to work northeast through the region. Overall appears to be a marginal instability with moderate shear situation... Which presents only a low probability of an isolated strong to severe storm. In the wake of this shortwave... Potential for partial clearing and additional destabilization late this afternoon early evening across nyc metro and points n&w. Although moderate instability uni- directional shear levels could exists during this time... Appears to be lack of a distinct focus or trigger for convection until the evening. In fact... Subsidence and weak mid-level capping may limit convective activity across the region until late. Based on instability shear environment there is a threat for isolated strong to severe storms during this time... Conditional on sufficient heating and development along any differential heating boundaries or elevation. Otherwise... Considerable cloudiness and convective debris today will keep temps in the lower to mid 80s for most of the region. If enough breaks in the clouds materialize... Temps could rise into the upper 80s across nyc metro and points n&w. There is a moderate risk of rip current development today, due to building southerly winds waves and a 2 ft long period se swell. Short term 6 pm this evening through 6 pm Saturday Northern stream longwave trough continues to deepen into the upper mississippi river valley and great lakes through the period... With the shortwave remnants of cindy shearing northeast towards the region late tonight into Saturday morning. At the surface... A cold front over the great lakes will slide east towards the region tonight... With the remnant circulation of cindy riding NE towards the region along the front. Leading edge of southern stream shortwave energy and pre- frontal trough approach the region this evening. Will have to watch for convection developing over central eastern pa this afternoon... And whether line segments can translate east in the moderate mid- level flow into the lower hudson valley NE nj before instability begins to wane. A conditional low threat for |
severe winds gusts exists mainly NW & W of nyc if this activity survives. The parade of shortwaves late evening into the overnight and tropical airmass will keep a threat for iso convection with heavy downpours overnight. Coastal stratus fog development possible with high dewpoint airmass advecting across E LI se ct late today this evening. Main concern during this period will be approach of cold front and remnant low of cindy late tonight Saturday morning. Environment presents a threat for flash flooding along and just to the south of the path of this low... With pwats in excess of 2+ inches and corfidi vectors indicating potential for slow moving or back building convective elements. Also can't rule out an isolated severe wind tornado threat if any MCS type activity develops in a weak instability but high shear helicity and low- lcl environment. 745am update... 06z guidance is indicating that this feature may track to the south of the region. If 12z guidance continues with this theme... The above mentioned severe flash flood threat may end up south of the region. Drying conditions in the wake of the cold front and cindy circulation Saturday afternoon... With highs in the mid to upper 80s. A high risk of rip current is likely Saturday with building southerly swells and wind waves. Long term Saturday night through Thursday Nwp is in agreement that a broad upper level trough will remain east of the rockies into early next week. The h5 flow then flattens from west to east as a cutoff low pres system moves through the western canadian provinces... Eventually consolidating with a vortex over northern quebec. This will sharpen the trough with its axis passing through Tue night followed by weak ridging for the remainder of the forecast period. In terms of sensible weather... Not a whole lot to talk about. A few cool frontal boundaries will pass through the local area... The first Sunday aftn eve with just a chance of isold showers. Mid level warming will keep instability in check so no tstms in the forecast. The second boundary approaches on Monday and is very slow to move through the area. It may become hung up... Before pushing east Tue night. Despite a decent shortwave and being in the rrq of a 120+ kt upper jet... Moisture looks very meager... Thus have kept the forecast dry. Moisture is still limited on tue... But there could be enough for isold showers tstms in the aftn. Dry and seasonable weather then returns for the remainder of the forecast period. Aviation 14z Friday through Tuesday A warm front moves well north of the region today establishing a moist SW flow. MainlyVFR. Areas of MVFR are possible later today with CIGS around 2500 ft and shra moving through for the late morning and early afternoon. There is also some potential for eastern terminals to briefly go to MVFR in the late afternoon due to low stratus. For now the tafs indicateVFR because coverage is in question and too uncertain at this time. More widespread subVFR conditions are expected late in the TAF period. There will be a chance of isold-sct shwrs thru the day (Friday), with the best potential for thunderstorms after 19z, particularly in areas along and west of the hudson river. The sea breeze may attempt to back winds closer to the south again after 16z today for eastern terminals. A chance at perhaps scattered thunderstorm coverage towards the evening push for the city terminals. 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 |
| NWHC3 - 8465705 - New Haven, CT | 24 mi | 46 min | SSW 8.9 G 12 | 75°F | 69°F | 1007.4 hPa | ||
| 44039 - Central Long Island Sound | 29 mi | 46 min | S 12 G 12 | 73°F | 70°F | |||
| NLNC3 - 8461490 - New London, CT | 33 mi | 46 min | S 8.9 G 9.9 | 76°F | 63°F | 1007.8 hPa | ||
| LDLC3 - New London Ledge CT - Ledge Light Weather | 35 mi | 31 min | SSE 6 G 8 | 71°F | 1007.6 hPa | 67°F | ||
| BRHC3 - 8467150 - Bridgeport, CT | 39 mi | 46 min | SSW 8 G 14 | 1006.6 hPa |
Wind History for New Haven, CT
(wind in knots) EDIT (on/off) Help| 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 | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | |
| Last 24hr | SW | SW | SW | SW | SW G11 | SW | S | S | S | S | S | SW | S | SW | S | S | S | S | S | S | S | SW | S | S |
| 1 day ago | SW | SW | SW G16 | NW G22 | W G19 | W G16 | W G18 | SW | W | NW | NE | -- | NE | NE | NE | NE G8 | NE | NE | NE | NE | NE | SW | SW | SW |
| 2 days ago | SW G21 | SW G19 | SW G17 | SW | W G18 | W G18 | W | W G12 | W | SW | W | SW | SW | SW | S | S | W | W | S | SW | NW G11 | W G8 | W | SW |
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 | 23 min | S 13 G 20 | 10.00 mi | Fair | 83°F | 71°F | 67% | 1006.2 hPa |
| Hartford, Hartford-Brainard Airport, CT | 12 mi | 23 min | S 9 | 10.00 mi | Partly Cloudy | 87°F | 72°F | 61% | 1005.7 hPa |
| Chester, Chester Airport, CT | 14 mi | 21 min | S 8 G 14 | 10.00 mi | Partly Cloudy | 81°F | 71°F | 74% | 1007.8 hPa |
| New Haven, Tweed-New Haven Airport, CT | 23 mi | 23 min | S 8 G 17 | 8.00 mi | Overcast | 79°F | 71°F | 79% | 1007.1 hPa |
Wind History from MMK (wind in knots)
| 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 | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | |
| Last 24hr | S | S | S | S | S | S | Calm | Calm | Calm | S | S | Calm | SE | Calm | Calm | S | S | S | S | S G18 | S G20 | |||
| 1 day ago | W G21 | W G17 | W | W G17 | W G16 | W | NW | Calm | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NW | NE | SW | NW G14 | ||
| 2 days ago | W G14 | W G17 | W G14 | SW G16 | W | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | W | SW | SW | W G15 |
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. Fri -- 12:32 AM EDT 3.15 feet High Tide Fri -- 05:00 AM EDT Moonrise Fri -- 05:17 AM EDT Sunrise Fri -- 08:12 AM EDT -0.36 feet Low Tide Fri -- 01:00 PM EDT 2.38 feet High Tide Fri -- 07:57 PM EDT Moonset Fri -- 08:12 PM EDT -0.08 feet Low Tide Fri -- 08:28 PM EDT Sunset Fri -- 10:32 PM EDT New Moon 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 |
| 3.1 | 3.1 | 2.9 | 2.4 | 1.8 | 1.2 | 0.5 | -0 | -0.3 | -0.1 | 0.7 | 1.5 | 2.1 | 2.4 | 2.2 | 1.9 | 1.5 | 1 | 0.6 | 0.2 | -0.1 | 0.1 | 0.9 | 1.9 |
Tide / Current Tables for Rocky Hill, Connecticut
EDIT (on/off) Help One Week of Data| Rocky Hill Click for Map Fri -- 01:25 AM EDT 3.00 feet High Tide Fri -- 04:59 AM EDT Moonrise Fri -- 05:16 AM EDT Sunrise Fri -- 09:12 AM EDT -0.28 feet Low Tide Fri -- 02:00 PM EDT 2.27 feet High Tide Fri -- 07:57 PM EDT Moonset Fri -- 08:28 PM EDT Sunset Fri -- 09:14 PM EDT -0.04 feet Low Tide Fri -- 10:32 PM EDT New Moon 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 |
| 2.5 | 2.9 | 3 | 2.6 | 2.1 | 1.6 | 1 | 0.4 | -0 | -0.3 | -0.1 | 0.7 | 1.5 | 2 | 2.3 | 2.1 | 1.8 | 1.4 | 0.9 | 0.5 | 0.2 | -0 | 0.2 | 0.9 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of Northeast EDIT  |
Wind Forecast for New York City/Upton, NY (13,3,4,5)
(on/off) Help |  |  |
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. |