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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 6:46AM | Sunset 5:28PM | Friday February 15, 2019 10:23 PM EST (03:23 UTC) | Moonrise 2:03PM | Moonset 4:15AM | Illumination 87% | ![]() |
ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 836 Pm Est Fri Feb 15 2019
Tonight..W winds around 10 kt, becoming nw after midnight. Seas 1 ft or less. Chance of sprinkles early this evening, then slight chance of showers after midnight.
Sat..NW winds around 10 kt. Seas 1 ft or less.
Sat night..N winds around 10 kt. Seas 1 ft or less.
Sun..N winds 5 to 10 kt, becoming S in the afternoon. Seas 1 ft or less.
Sun night..SE winds around 5 kt, becoming E after midnight. Seas 1 ft or less. Chance of light snow in the evening, then light snow likely after midnight. Vsby 1 to 3 nm.
Mon..N winds 5 to 10 kt. Seas 1 ft or less. Chance of light snow in the morning. Vsby 1 to 3 nm.
Mon night..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue night..NW winds around 5 kt, becoming N after midnight. Seas 1 ft or less. Chance of snow after midnight. Vsby less than 1 nm after midnight.
Wed..E winds 5 to 10 kt. Seas 1 ft or less. Chance of snow. Vsby less than 1 nm.
Wed night..E winds 10 to 15 kt. Seas 1 ft or less. Chance of snow in the evening, then chance of freezing rain and sleet after midnight. Vsby less than 1 nm in the evening.
Tonight..W winds around 10 kt, becoming nw after midnight. Seas 1 ft or less. Chance of sprinkles early this evening, then slight chance of showers after midnight.
Sat..NW winds around 10 kt. Seas 1 ft or less.
Sat night..N winds around 10 kt. Seas 1 ft or less.
Sun..N winds 5 to 10 kt, becoming S in the afternoon. Seas 1 ft or less.
Sun night..SE winds around 5 kt, becoming E after midnight. Seas 1 ft or less. Chance of light snow in the evening, then light snow likely after midnight. Vsby 1 to 3 nm.
Mon..N winds 5 to 10 kt. Seas 1 ft or less. Chance of light snow in the morning. Vsby 1 to 3 nm.
Mon night..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue night..NW winds around 5 kt, becoming N after midnight. Seas 1 ft or less. Chance of snow after midnight. Vsby less than 1 nm after midnight.
Wed..E winds 5 to 10 kt. Seas 1 ft or less. Chance of snow. Vsby less than 1 nm.
Wed night..E winds 10 to 15 kt. Seas 1 ft or less. Chance of snow in the evening, then chance of freezing rain and sleet after midnight. Vsby less than 1 nm in the evening.
ANZ300 836 Pm Est Fri Feb 15 2019
Synopsis for the long island waters and new york harbor.. A cold front passes through this evening, followed by high pressure building in through Saturday night. Low pressure passes to the south Sunday night into Monday. High pressure then returns for Tuesday followed by an approaching low pressure system on Wednesday.
Synopsis for the long island waters and new york harbor.. A cold front passes through this evening, followed by high pressure building in through Saturday night. Low pressure passes to the south Sunday night into Monday. High pressure then returns for Tuesday followed by an approaching low pressure system on Wednesday.
7 Day Forecast for Marine Location Near Norwalk, CT
Hourly EDIT Helplocation: 41.1, -73.42 debug
Area Discussion for - New York City/Upton, NY
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFxus61 kokx 160147 afdokx area forecast discussion national weather service new york ny 847 pm est Fri feb 15 2019 Synopsis A cold front passes through this evening, followed by high pressure building in through Saturday night. Weak low pressure passes just south Sunday night and Monday. High pressure builds Tuesday, followed by another low pressure and frontal system mid week. Near term until 6 am Saturday morning The okx VWP and radar suggest a strengthening lljet ahead of the cold front. As a result, sct shwrs have been fcst for ern portions of LI and ct, with a few sprinkles wwd to the hudson valley. The hrrr and 18z NAM are dry. Areas could trace and not measure. Otherwise, the fcst is on track, with the front entering orange county and poised to pass thru the CWA thru midnight. Dry weather for the overnight hours as high pressure builds in. Cloud cover and or strong enough winds will hold low temperatures to above normal levels. Short term 6 am Saturday morning through Saturday night Surface high pressure builds into the region with the flow aloft becoming more zonal. There could still be some lingering mid to high level clouds to start the day, especially for southern sections of the forecast area, otherwise it should turn out to be mostly sunny. Went on the cooler side of the guidance average for high temperatures, but this still places us near normal for this time of the year. High pressure continues to build in for Saturday night with a mostly clear sky. Conditions are more favorable for radiational cooling versus tonight, and combined with a colder air mass, lows are expected to drop into the teens across parts of the lower hudson valley, interior ct, and the pine barrens region in eastern li. The rest of the tri-state area should have lows in the 20s. Long term Sunday through Friday Upper shortwave moves out of the upper mid west, passing across the great lakes region, then shears out across the northeast Monday. Weak ridge, quasizonal flow then prevails behind this shortwave ahead of western trough that will eventually move across the midwest, weakening as it does so, but amplifying the ridge ahead of it across the eastern states. This trough passes Thursday. At the surface, weak low pressure tracks across the appalachians Sunday night as high pressure to the northeast yields as mid level confluence gives way to aforementioned shortwave. Another low develops just south over the waters, and quickly passes east by Monday. The position of this low remains in question, and this will dictate whether or not light snow or flurries mixes with or changes to light rain along the coast. As the sfc low departs, a lingering sfc trough lags behind as sheared out shortwave moves across the northeast. Feel the bulk of the snow or rain snow mix ends, but some lingering light snow or sprinkles cannot be ruled out Monday. Not sure if moisture depth will be sufficient for production of ice crystals, but feel clouds linger, and chance pops are warranted. Forecast amounts of around one to two inches of snow accumulation, with support from latest ECMWF run lending some support. If a mix does indeed occur near the coast, amounts could be lower. Timing Sunday night. High pressure builds across the great lakes Monday night and Tuesday, then next low approaches from the southwest for Tue night- wed. Based on upper steering flow as mentioned, the southern low likely passes well to the west, then nw. Meanwhile, high pressure settles across northern new england, likely resulting in some cold air damming as another low develops along the mid atlantic. Still a lot of details to iron out here, but snow is possible late Tuesday night Wednesday, then a changeover to a wintry mix to rain would likely occur Wed night-thu before ending. Dry Friday behind the system. |
Temperatures through the period will not vary much. In general, temperatures should remain slightly below normal, but as previous forecast stated, arctic air is not anticipated. Aviation 02z Saturday through Wednesday A cold front moves through the terminals from around 02z west to around 07z east. There may be a few scattered showers, however, no impact to ceilings or visibilities are expected.VFR through the forecast period. S to SW wind around 10 kt with shift to the W with the approach of the cold front, and then to the NW with the cold frontal passage. Winds may be around 310 true for several hours from around 04z to 12z, with occasional gusts up to 20 kt at the nyc metro terminals. During Saturday winds will be more from the nw to N around 10 kt. Outlook for 00z Sunday through Wednesday Saturday night-Sunday Vfr. Sunday night-Monday Chance of snow with MVFR or lower conditions possible. Tuesday Vfr. Wednesday Chance of snow with MVFR or lower conditions possible. Marine Sca remains unchanged on the ocean. The non-ocean waters should see gusts remaining below 25 kt tngt, with gusts dropping blw 25 kt on the ocean by around midnight. Seas will however remain at advisory levels through the night and into Saturday morning. Sub-advisory conditions then prevail Saturday afternoon and night. Winds will be rather tranquil ahead of weak low pressure Sunday- Sunday night. Behind the low, winds shift around to the N NW and should increase late Monday-Monday night. As such, ocean seas build slightly before subsiding as high pressure builds and winds lighten again. Winds should increase ahead of the next low and frontal boundary Wednesday. Hydrology There are no hydrologic concerns through the middle of next week. Equipment Nyc central park winds are out of service until further notice. Loss of data is due to a severed cable. Parts are on order. Nyc NOAA weather radio station kwo35 (162.55 mhz) will remain off the air for an extended period of time. Okx watches warnings advisories Ct... None. Ny... None. Nj... None. Marine... Small craft advisory until 11 am est Saturday for anz350-353- 355. Synopsis... Jc pw near term... Jmc jc short term... Jc long term... Pw aviation... Met marine... Jmc jc pw hydrology... Jc pw equipment... |
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
BRHC3 - 8467150 - Bridgeport, CT | 14 mi | 41 min | WNW 1.9 G 5.1 | 46°F | 36°F | 1003.6 hPa | ||
KPTN6 - 8516945 - Kings Point, NY | 27 mi | 35 min | S 2.9 G 4.1 | 47°F | 35°F | 1005.4 hPa | ||
NWHC3 - 8465705 - New Haven, CT | 30 mi | 35 min | SSW 1.9 G 2.9 | 44°F | 38°F | 1004.2 hPa | ||
BATN6 - 8518750 - The Battery, NY | 42 mi | 35 min | 53°F | 38°F | 1004.6 hPa | |||
ROBN4 - 8530973 - Robins Reef, NJ | 46 mi | 35 min | W 12 G 17 | 56°F | 1005 hPa |
Wind History for Bridgeport, CT
(wind in knots) EDIT (on/off)  Help10 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 | 7 PM | 8 PM | 9 PM | |
Last 24hr | -- | SE G6 | -- | N | E G4 | NE | E G6 | E | NE G4 | N | W | S G10 | S | SW G10 | S | SW | SW G7 | SW G8 | SW | S | SW | S | S | N |
1 day ago | W G11 | SW G7 | W G11 | W G10 | W G11 | W G15 | W G8 | W G9 | W G9 | W G9 | NW G14 | NW G14 | NW G15 | W G10 | NW G15 | W G10 | SW | NW | SW | SW G9 | SW | S | S | -- |
2 days ago | E G17 | NE G14 | NE G13 | NE G11 | NE G10 | N | N | NW | NW | W | SW | SW G12 | NW G16 | NW G16 | NW G23 | NW G17 | W G13 | W G17 | W G19 | W G18 | W G14 | SW | W G15 | W G9 |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airportsAirport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Bridgeport, Sikorsky Memorial Airport, CT | 16 mi | 31 min | SW 3 | 10.00 mi | A Few Clouds | 45°F | 39°F | 83% | 1003.9 hPa |
White Plains - Westchester County Airport, NY | 16 mi | 87 min | NW 3 | 10.00 mi | Mostly Cloudy | 43°F | 37°F | 82% | 1004.2 hPa |
Danbury, Danbury Municipal Airport, CT | 19 mi | 30 min | N 0 | 10.00 mi | Overcast | 37°F | 34°F | 89% | 1004.4 hPa |
Wind History from HPN (wind in knots)
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 | 7 PM | 8 PM | 9 PM | 10 PM | |
Last 24hr | S | E | SE | SE | E | SE | E | E | SE | SE | SE | S | S | S | S | S | S | SE | SE | SE | SE | Calm | NW | W |
1 day ago | W | W G16 | W | W G16 | W G16 | W G18 | W G22 | W G18 | W G19 | W | W G20 | NW G22 | NW | W | W | W | NW | W | Calm | S | Calm | Calm | Calm | Calm |
2 days ago | E G20 | E | N | NW | NW | NW | W | W | W | W G24 | W G24 | W G32 | W G27 | W G23 | W G25 | W G18 | W G17 | W G20 | W G18 | W G18 | W G20 | W | W G15 |
Tide / Current Tables for South Norwalk, Connecticut
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of DataSouth Norwalk
Click for Map
Fri -- 12:50 AM EST 0.64 feet Low Tide
Fri -- 03:15 AM EST Moonset
Fri -- 06:48 AM EST Sunrise
Fri -- 07:00 AM EST 7.26 feet High Tide
Fri -- 01:03 PM EST Moonrise
Fri -- 01:38 PM EST 0.13 feet Low Tide
Fri -- 05:27 PM EST Sunset
Fri -- 07:38 PM EST 6.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:50 AM EST 0.64 feet Low Tide
Fri -- 03:15 AM EST Moonset
Fri -- 06:48 AM EST Sunrise
Fri -- 07:00 AM EST 7.26 feet High Tide
Fri -- 01:03 PM EST Moonrise
Fri -- 01:38 PM EST 0.13 feet Low Tide
Fri -- 05:27 PM EST Sunset
Fri -- 07:38 PM EST 6.45 feet High Tide
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 | 0.6 | 1.2 | 2.5 | 4.2 | 5.7 | 6.8 | 7.3 | 6.8 | 5.6 | 4 | 2.5 | 1.2 | 0.3 | 0.2 | 1 | 2.4 | 4 | 5.4 | 6.3 | 6.4 | 5.7 | 4.4 | 2.9 |
Tide / Current Tables for Stamford, Connecticut (2)
EDIT (on/off)  Help One Week of DataStamford
Click for Map
Fri -- 12:43 AM EST 0.66 feet Low Tide
Fri -- 03:15 AM EST Moonset
Fri -- 06:48 AM EST Sunrise
Fri -- 06:54 AM EST 7.40 feet High Tide
Fri -- 01:04 PM EST Moonrise
Fri -- 01:31 PM EST 0.13 feet Low Tide
Fri -- 05:28 PM EST Sunset
Fri -- 07:32 PM EST 6.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:43 AM EST 0.66 feet Low Tide
Fri -- 03:15 AM EST Moonset
Fri -- 06:48 AM EST Sunrise
Fri -- 06:54 AM EST 7.40 feet High Tide
Fri -- 01:04 PM EST Moonrise
Fri -- 01:31 PM EST 0.13 feet Low Tide
Fri -- 05:28 PM EST Sunset
Fri -- 07:32 PM EST 6.57 feet High Tide
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 |
0.8 | 0.7 | 1.4 | 2.8 | 4.4 | 6 | 7 | 7.4 | 6.9 | 5.6 | 3.9 | 2.4 | 1.1 | 0.3 | 0.2 | 1.1 | 2.6 | 4.2 | 5.6 | 6.4 | 6.5 | 5.7 | 4.3 | 2.8 |
Weather Map and Satellite Images
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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 (22,6,7,8)
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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. |