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Marine Weather and Tides
Version 3.4 |
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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. |
| Sunrise 5:15AM | Sunset 8:29PM | Thursday June 21, 2018 1:00 AM EDT (05:00 UTC) | Moonrise 2:07PM | Moonset 1:37AM | Illumination 53% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 941 Pm Edt Wed Jun 20 2018 Overnight..S winds 5 to 10 kt, becoming se late. Seas 1 ft or less. Chance of rain late this evening, then rain likely. Rain late with vsby 1 to 3 nm. Thu..E winds 5 to 10 kt. Seas 1 ft or less. Chance of rain in the morning with vsby 1 to 3 nm. Thu night..E winds 5 to 10 kt. Seas 1 ft or less. Fri..E winds around 10 kt. Seas 1 ft or less, then around 2 ft in the afternoon. Fri night..E winds around 10 kt. Seas around 2 ft. Chance of showers after midnight. Sat..E winds around 10 kt. Seas around 2 ft. Chance of showers in the morning, then showers likely in the afternoon. Sat night..SE winds around 10 kt, becoming sw after midnight. Seas around 2 ft. Chance of tstms. Showers likely, mainly in the evening. Sun..SW winds 5 to 10 kt. Seas around 2 ft. Sun night..W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms. Mon..NW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. Mon night..N winds 5 to 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms. | ANZ300 941 Pm Edt Wed Jun 20 2018 Synopsis for the long island waters and new york harbor.. Low pressure riding along a stalled frontal boundary will track just south of the region overnight. This low exits to the east Thursday morning with weak high pressure building over the region. High pressure retreats to the north and east on Friday as the next frontal system approaches. This frontal system will move across the region this weekend. High pressure returns for 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 210237 afdokx area forecast discussion national weather service new york ny 1037 pm edt Wed jun 20 2018 Synopsis Low pressure riding along a stalled frontal boundary tracks just south of the region tonight. This low exits to the east Thursday morning with weak high pressure building over the region. High pressure retreats to the north and east on Friday as the next frontal system approaches. This frontal system will move across the region this weekend. High pressure returns for next week. Near term until 6 am Thursday morning A weak upper level shortwave will move across the region tonight, with low pressure tracking just south of the region overnight. Light rain shower activity will continue to increase across the region overnight, but focus for steadier and heavier rain looks like it will me relegated to nyc nj metro li and points south. LLJ forcing, higher pwats (around 2"), and weak instability will be close enough to nyc nj metro and li after midnight to present a quick period of moderate to heavy rain. Meanwhile, generally light to moderate frontogenetic rain across lower hud and southern ct. Forecast has continued to be trended in this drier southward direction for lower hud and southern ct with this update. Refer to the hydrology section of the afd for details on expected rainfall amounts and any impacts. Lows tonight fall into the 60s. Short term 6 am Thursday morning through Thursday night Any precipitation comes to an end Thursday morning, with high pressure building in from the west. Drier conditions can then be expected for the remainder of the day. Slowly clearing skies will lead to partly to mostly sunny day. Daytime highs climb into the 70s and 80s. Fair conditions continue Thursday night as high pressure continues to build into the region. Overnight lows will fall into the 50s and 60s. A mav met ecs blend was in good agreement and used for temperatures in the short term. Long term Friday through Wednesday The main forecast challenge in the long term revolves around a frontal system progged to impact the local area this weekend. The frontal system will be in association with an upper low than opens up as it lifts into the great lakes region. Ensemble means and deterministic runs overall agree on the synoptic evolution this weekend, but there are differences in timing and amplitude of shortwaves within the upper low trough. Upper ridging will be in place on Friday and the best forcing will be located well to the south and west. The upper ridge axis generally remains in place Friday night as the shortwave approaches. At the surface, a warm front will approach from the south enhancing low level warm advection. One of the biggest uncertainties heading into Saturday revolves around how much surface ridging lingers from the high pressure to the northeast. The low level easterly flow may serve to enhance the surface ridging, keeping subsidence and stable conditions across the region. This may slow the progress of the warm front a bit as well. At the same time, the upper low and trough are progged to open up and broaden as the system lifts towards the great lakes. The main upper trough axis swings through Saturday evening and Saturday night leaving behind a westerly flow on Sunday. Another upper trough should cross the region Sunday night into Monday, finally taking the frontal system offshore. For sensible weather, dry conditions are forecast on Friday with gradually increasing pops on Friday night into Saturday morning. The ECMWF appears quickest to break the surface ridging with the warm front moving across much quicker than the gfs. Have gone with a slower progression with likely pops spreading across the area late Saturday morning into the afternoon. It appears at this time the best forcing will be with the upper shortwave axis and passage of the warm front Saturday evening into Saturday night. Little to no instability is present on model soundings during the day Saturday, so have removed mention of thunder until Saturday evening and night. Conditions should dry out Sunday with the region fully in the warm sector. Westerly flow aloft and a much drier middle and upper atmosphere prevents anything more than a chance for showers and thunderstorms with a cold front nearby. The chance for showers and thunderstorms continues into at least Monday morning with the upper trough axis passing across. If the timing of the upper trough is slower, pops may need to be increased on Monday. While the weekend does not look like a washout, there will be |
periods of showers and possible storms Saturday night into Sunday. Locally heavy rainfall is possible in any convection. High pressure returns behind the upper trough and frontal system moving offshore on Monday. The high will be in control through the middle of the week. Temperatures average below normal Friday and Saturday and then above normal on Sunday. Temperatures should then average near normal for next week. Aviation 03z Thursday through Monday A wave of low pressure approaches from western pennsylvania, passing near or just south of the terminals overnight into Thursday morning. A backdoor cold front moves into the terminals toward 00z Friday. Vfr, with conditions lowering to MVFR as light rain develops overnight. Conditions likely remain MVFR, especially across the terminals north of nyc. There is a chance of ifr conditions overnight with moderate to heavy rain, at the nyc terminals and along the coast. Rain tapers off from west to east 09z to 12z, then rain ends with improvement toVFR. There is uncertainty as to the timing and areal extent of MVFR and ifr overnight, along with the areas of heavy rain, and will be dependent on the timing and track of the low. Winds light from the south, 5 kt or less, become light and variable to near calm overnight. Then as the low passes to the south and east the winds will become N to NE 10-15 kt. There is a chance winds become E for a few hours late Thursday afternoon. Outlook for 00z Friday through Monday Thursday night and Friday Vfr. Saturday Sub-vfr. Showers likely, possibly a thunderstorm during the evening and nighttime hours. Sunday Chance of sub-vfr conditions in showers and thunderstorms. Monday Chance of showers early, becomingVFR. Marine Sub-sca conditions are expected on the area waters as a relaxed pressure gradient remains over the area waters. Winds will remain 10 kt or less through Thursday night. The possible exception is over the coastal ocean waters west of moriches inlet, where sustained winds up to around 15 kt are possible. Winds and seas will stay below SCA levels on Friday. A frontal system impacting the waters this weekend may bring winds to around 20 kt on the ocean with seas gradually building as well. Seas may build to 5 ft on the ocean on Sunday as a warm front moves north and sw flow increases further. Hydrology A generally 1 2 to 1 inch of basin average rainfall can be expected tonight into Thursday morning across LI and nyc nj metro, with 1 4 inch or less across interior portions of the lower hudson valley and southern ct. With high precipitable waters, there is the potential for locally heavy rainfall across nyc nj metro and li. Locally heavy rainfall could cause minor urban and poor drainage flooding. There is a very small chance (10% or less) of localized flash flooding, across nyc nj metro long island. Locally heavy rainfall is possible this weekend, especially late Saturday into Saturday night. However, no significant widespread hydrologic impacts are currently expected. Equipment Nyc NOAA weather radio station kwo-35 (162.55 mhz) remains off the air for an extended period of time. Okx watches warnings advisories Ct... None. Ny... None. Nj... None. Marine... None. Synopsis... Bc ds near term... Bc nv short term... Bc long term... Ds aviation... 19 marine... Bc ds hydrology... Bc ds 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 | 61 min | SSW 1.9 G 1.9 | 69°F | 68°F | 1009 hPa (+0.0) | ||
| 44039 - Central Long Island Sound | 29 mi | 76 min | SSE 3.9 G 3.9 | 68°F | ||||
| NLNC3 - 8461490 - New London, CT | 33 mi | 61 min | S 6 G 6 | 69°F | 65°F | 1008.6 hPa (+0.0) | ||
| BRHC3 - 8467150 - Bridgeport, CT | 39 mi | 61 min | S 1.9 G 2.9 | 69°F | 62°F | 1008.2 hPa (+0.0) |
Wind History for New Haven, CT
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | |
| Last 24hr | SE | E G6 | E | NE G5 | S | E G5 | NE G4 | SW | NE G4 | N | W | SW | SW | SW | S | S | S | S | SW | SW | W | S | S | S |
| 1 day ago | W G11 | SE | W | W | NW G8 | N | N G7 | N G13 | N G12 | N G19 | N G18 | N G17 | N G20 | N G21 | N G21 | N G18 | N G15 | NW | N G13 | N G10 | N G7 | NE G5 | NE | NE G5 |
| 2 days ago | S | SW | S | S | SW G9 | S | S | S | S G9 | S | SW | SW G9 | SW | SW G13 | SW | SW | W | SW | S G5 | S |
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 | 68 min | N 0 | 10.00 mi | Overcast | 69°F | 60°F | 73% | 1008.5 hPa |
| Hartford, Hartford-Brainard Airport, CT | 12 mi | 68 min | S 3 | 10.00 mi | Fair | 70°F | 61°F | 73% | 1008.2 hPa |
| Chester, Chester Airport, CT | 14 mi | 66 min | Var 4 | 10.00 mi | Overcast | 68°F | 64°F | 88% | 1009.1 hPa |
| New Haven, Tweed-New Haven Airport, CT | 23 mi | 68 min | N 0 | 10.00 mi | Overcast | 70°F | 64°F | 82% | 1008.8 hPa |
Wind History from MMK (wind in knots)
| 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 | 12 AM | 1 AM | |
| Last 24hr | Calm | Calm | Calm | Calm | Calm | NW | N | N | Calm | Calm | S | S | SW | SW | S | S | Calm | Calm | Calm | Calm | S | |||
| 1 day ago | SW | Calm | NW | Calm | NW | N | N G20 | N | N G19 | N | N G17 | NW | NW G17 | W G17 | N G16 | N G14 | N | N | N | N | Calm | Calm | Calm | |
| 2 days ago | Calm | Calm | S | Calm | S | S | S | S | S | SW | S | S G19 | S G20 | S G20 | S G27 | S G22 | S G22 | S | S | S | W | S | SE | S |
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. Thu -- 01:36 AM EDT Moonset Thu -- 03:27 AM EDT 0.27 feet Low Tide Thu -- 05:16 AM EDT Sunrise Thu -- 08:29 AM EDT 2.18 feet High Tide Thu -- 02:06 PM EDT Moonrise Thu -- 03:45 PM EDT 0.13 feet Low Tide Thu -- 08:28 PM EDT Sunset Thu -- 09:08 PM EDT 2.54 feet High Tide 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 |
| 1.5 | 1.1 | 0.6 | 0.3 | 0.4 | 0.8 | 1.4 | 1.8 | 2.1 | 2.2 | 2 | 1.7 | 1.4 | 1 | 0.6 | 0.2 | 0.1 | 0.5 | 1.2 | 1.8 | 2.3 | 2.5 | 2.5 | 2.3 |
Tide / Current Tables for Rocky Hill, Connecticut
EDIT (on/off) Help One Week of Data| Rocky Hill Click for Map Thu -- 01:36 AM EDT Moonset Thu -- 04:31 AM EDT 0.29 feet Low Tide Thu -- 05:16 AM EDT Sunrise Thu -- 09:29 AM EDT 2.09 feet High Tide Thu -- 02:06 PM EDT Moonrise Thu -- 04:50 PM EDT 0.20 feet Low Tide Thu -- 08:28 PM EDT Sunset Thu -- 10:07 PM EDT 2.36 feet High Tide 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 |
| 1.7 | 1.4 | 1 | 0.6 | 0.3 | 0.4 | 0.8 | 1.3 | 1.7 | 2 | 2.1 | 1.9 | 1.7 | 1.4 | 1 | 0.6 | 0.3 | 0.2 | 0.5 | 1.1 | 1.7 | 2.1 | 2.4 | 2.3 |
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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for New York City/Upton, NY (1,6,7,8)
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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. |