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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:04AM | Sunset 7:47PM | Monday August 19, 2019 12:05 PM EDT (16:05 UTC) | Moonrise 10:04PM | Moonset 9:46AM | Illumination 83% |  |
ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 938 Am Edt Mon Aug 19 2019
Today..S winds around 5 kt. Seas 1 ft or less. Chance of showers and tstms late with vsby 1 to 3 nm.
Tonight..S winds around 5 kt, becoming nw after midnight. Seas 1 ft or less. Chance of showers and tstms in the evening.
Tue..N winds around 5 kt, becoming sw around 5 kt in the afternoon. Seas 1 ft or less.
Tue night..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms. Vsby 1 to 3 nm.
Wed..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms. Vsby 1 to 3 nm.
Wed night..SW winds 5 to 10 kt. Seas 1 ft or less. Showers and tstms likely, mainly in the evening. Vsby 1 to 3 nm.
Thu..W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms.
Thu night..NW winds 5 to 10 kt. Seas 1 ft or less.
Fri..NW winds 5 to 10 kt. Seas 1 ft or less.
Fri night..NW winds 5 to 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms.
Today..S winds around 5 kt. Seas 1 ft or less. Chance of showers and tstms late with vsby 1 to 3 nm.
Tonight..S winds around 5 kt, becoming nw after midnight. Seas 1 ft or less. Chance of showers and tstms in the evening.
Tue..N winds around 5 kt, becoming sw around 5 kt in the afternoon. Seas 1 ft or less.
Tue night..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms. Vsby 1 to 3 nm.
Wed..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms. Vsby 1 to 3 nm.
Wed night..SW winds 5 to 10 kt. Seas 1 ft or less. Showers and tstms likely, mainly in the evening. Vsby 1 to 3 nm.
Thu..W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms.
Thu night..NW winds 5 to 10 kt. Seas 1 ft or less.
Fri..NW winds 5 to 10 kt. Seas 1 ft or less.
Fri night..NW winds 5 to 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms.
ANZ300 938 Am Edt Mon Aug 19 2019
Synopsis for the long island waters and new york harbor.. A cold front will approach the waters today and then weaken as it slowly moves across long island this evening. The weakening front will move farther south of long island late tonight into Tuesday. A wave of low pressure develops late Tuesday and approaches Tuesday night. A cold front approaches Wednesday and pushes through the waters by Thursday. High pressure builds in thereafter through the weekend.
Synopsis for the long island waters and new york harbor.. A cold front will approach the waters today and then weaken as it slowly moves across long island this evening. The weakening front will move farther south of long island late tonight into Tuesday. A wave of low pressure develops late Tuesday and approaches Tuesday night. A cold front approaches Wednesday and pushes through the waters by Thursday. High pressure builds in thereafter through the weekend.
7 Day Forecast for Marine Location Near Belle Terre, NY
Hourly EDIT Helplocation: 40.99, -73.08 debug
Area Discussion for - New York City/Upton, NY
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kokx 191541 afdokx area forecast discussion national weather service new york ny 1141 am edt Mon aug 19 2019 Synopsis A cold front will approach the region today and then weaken as it slowly moves across long island this evening. The weakening front will move farther south of long island late tonight into Tuesday. A wave of low pressure develops late Tuesday and approaches Tuesday night. A cold front approaches Wednesday and pushes through the region by Thursday. High pressure builds in through the weekend. Near term through tonight Forecast overall remains on track. Just minor updates to temperatures and dewpoints with this morning forecast. Otherwise, heat advisory remains in effect for much of the region with heat indices expected to reach 95 to 100 degrees in these areas. The exception is eastern suffolk county on long island where heat indices will generally be in the lower 90s. Main 500mb shortwave energy stays well north of the region through tonight. Going into today, area on southern edge of shortwave extending from central to southeast canada. Net mid level flow across local area is quasi zonal. Coherency in model guidance depicting an axis of positive vorticity advection at 500mb moving in 18-00z across cwa. This is associated with a shortwave axis. This will provide enhanced lift. Negative vorticity advection behind it will quell convection mid to late this evening and into overnight. Slight rises in height fields are evident in the model fields at 500mb for tonight. At the surface, a cold front approaches the region today and moves in late this afternoon into early this evening. Front slowly moves slowly eastward, lingering into the evening and weakening across long island, eventually moving south of long island overnight. The NAM depicts a little more accurately with precip with 00z runs compared to ECMWF and canadian models. 00z gfs has too much precipitation for overnight. With high heat and humidity in place for today, heat advisory remains as is with exception of eastern long island. Heat indices of 95-100 can be expected where advisory remains in effect and it remains in effect until 8pm this evening. This will also allow for high instability and with enhanced lift in the afternoon would expect scattered showers and thunderstorms. Gusty winds and heavy rain can be expected with these with some relatively higher shear aloft late in the day. Showers and thunderstorms continue into start of evening and then diminish with loss of synoptic forcing and instability late tonight. There is a moderate risk of rip currents at ocean beaches today. |
Short term Tuesday Mainly dry conditions expected with the front well south of long island with exception being any convergence along developing sea breeze circulations in the afternoon. More northerly surface wind flow will allow for lower dewpoints. 850mb temperatures are a few degrees cooler behind the cold front. This translates to surface temperatures being a few degrees cooler than the previous day. Overall, a little less hot and humid with heat indices reaching a MAX in the lower 90s. There will be an increase in pops for showers and thunderstorms late in the day as a wave of low pressure approaches. There will be another moderate risk of rip currents at ocean beaches for Tuesday. Long term Tuesday night through Sunday Unsettled weather along with heat and humidity will continue on Wednesday as the region remains on the western side of a bermuda high. A vigorous upper trough will approach out of the great lakes region into Thursday. Smaller scale features within the upper trough still remain uncertain which will affect the timing and progression of an approaching cold front. The front will be the focus for any convection Wednesday night into Thursday. However, a weak pre frontal trough could be enough to spark some showers and storms during the day on Wednesday. Therefore, maintaining a chance pops through through the afternoon. With the approach of the cold front Wednesday night and Thursday, there is a better chance of convection. There is a possibility for severe weather, but uncertainty remains due to the eastward progression of the cold front. If the front is slower to approach, and later at night, the environment may not be as favorable. It still looks like the front won't fully clear the area until sometime on Thursday so decided to keep chance pops through much of the day. Following the front, a cooler and more comfortable airmass overspreads the region. Generally, a dry weekend is forecast with high pressure building to the north. Temperatures will be above normal Wednesday and Thursday before falling a few degree below normal Friday and through the weekend. Aviation 16z Monday through Friday A cold front approaches today and moves through tonight. MainlyVFR today. Afternoon showers and thunderstorms are expected this afternoon, with the most likely timing between 20-24z for the nyc terminals. Will cover this threat with tempo groups. Any thunderstorms may lower flight categories to MVFR or even ifr for brief period. Winds mostly SW to S under 12 kt. 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 |
| BRHC3 - 8467150 - Bridgeport, CT | 14 mi | 53 min | SSW 5.1 G 8.9 | 79°F | 77°F | 1015 hPa | ||
| 44069 | 20 mi | 50 min | SW 7.8 G 9.7 | 76°F | 79°F | 74°F | ||
| NWHC3 - 8465705 - New Haven, CT | 22 mi | 53 min | S 6 G 8 | 77°F | 78°F | 1015 hPa | ||
| KPTN6 - 8516945 - Kings Point, NY | 38 mi | 47 min | W 1.9 G 2.9 | 82°F | 74°F | 1016 hPa |
Wind History for Bridgeport, CT
(wind in knots) EDIT (on/off) Help| 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 | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
| Last 24hr | S | S | S G11 | SW G9 | SE | SE | S G16 | SW G11 | SW G9 | NW G19 | N G9 | SE | SW | SW G7 | SW | N | E | N | N | NE | SE | SE | S G7 | SW G9 |
| 1 day ago | SE G12 | E | E G11 | SE G13 | SE G12 | E | E G9 | NE G9 | E | E | SE G5 | SE | NE | NE | E | N | N | N | NE | -- | N | NW | SE | SW |
| 2 days ago | SE | SE | SE G8 | SE | SE | SE G9 | SE | SE | E G9 | E | SE | SE | SE | E | E | E | E G6 | NE G8 | NE | NE | E G6 | N | E | E |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Islip, Long Island Mac Arthur Airport, NY | 13 mi | 2.2 hrs | WSW 5 | 10.00 mi | Mostly Cloudy | 82°F | 75°F | 82% | 1015.4 hPa |
| Bridgeport, Sikorsky Memorial Airport, CT | 13 mi | 2.2 hrs | SSW 3 | 10.00 mi | Partly Cloudy | 79°F | 66°F | 67% | 1015.3 hPa |
| Shirley, Brookhaven Airport, NY | 17 mi | 2.2 hrs | SSW 5 | 10.00 mi | Fair | 81°F | 73°F | 79% | 1015.4 hPa |
| New Haven, Tweed-New Haven Airport, CT | 23 mi | 2.2 hrs | S 5 | 10.00 mi | A Few Clouds | 80°F | 72°F | 76% | 1015.4 hPa |
Link to 5 minute data for KBDR
Wind History from BDR (wind in knots)
| 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 | 7 AM | 8 AM | 9 AM | 10 AM | |
| Last 24hr | SW | SW | SW | SW | SW | S | E | S | S | SW G20 | NW | Calm | Calm | W | Calm | Calm | Calm | S | S | |||||
| 1 day ago | E | E | E | E | E | E | E | NE | E | E | E | E | N | NE | E | Calm | NW | N | Calm | Calm | ||||
| 2 days ago | E | E | E | E | E | E | E | SE | E | E | E | E | NE | NE | NE | E |
Tide / Current Tables for Conscience Bay entrance (Narrows), Long Island Sound, New York
EDIT Weekend mode (on/off) (on/off) Help One Week of DataConscience Bay entrance (Narrows)
Click for Map
Mon -- 02:06 AM EDT 6.96 feet High Tide
Mon -- 06:06 AM EDT Sunrise
Mon -- 08:24 AM EDT 0.48 feet Low Tide
Mon -- 09:46 AM EDT Moonset
Mon -- 02:27 PM EDT 7.03 feet High Tide
Mon -- 07:45 PM EDT Sunset
Mon -- 08:45 PM EDT 0.68 feet Low Tide
Mon -- 10:03 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:06 AM EDT 6.96 feet High Tide
Mon -- 06:06 AM EDT Sunrise
Mon -- 08:24 AM EDT 0.48 feet Low Tide
Mon -- 09:46 AM EDT Moonset
Mon -- 02:27 PM EDT 7.03 feet High Tide
Mon -- 07:45 PM EDT Sunset
Mon -- 08:45 PM EDT 0.68 feet Low Tide
Mon -- 10:03 PM EDT Moonrise
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 |
| 5.3 | 6.4 | 7 | 6.6 | 5.5 | 3.9 | 2.4 | 1.2 | 0.5 | 0.6 | 1.6 | 3.2 | 4.8 | 6.2 | 6.9 | 6.9 | 6 | 4.6 | 3.1 | 1.8 | 0.9 | 0.7 | 1.3 | 2.7 |
Tide / Current Tables for Stony Brook, Smithtown Bay, Long Island Sound, New York
EDIT (on/off) Help One Week of DataStony Brook
Click for Map
Mon -- 02:12 AM EDT 6.33 feet High Tide
Mon -- 06:06 AM EDT Sunrise
Mon -- 08:30 AM EDT 0.43 feet Low Tide
Mon -- 09:46 AM EDT Moonset
Mon -- 02:33 PM EDT 6.39 feet High Tide
Mon -- 07:45 PM EDT Sunset
Mon -- 08:51 PM EDT 0.61 feet Low Tide
Mon -- 10:03 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:12 AM EDT 6.33 feet High Tide
Mon -- 06:06 AM EDT Sunrise
Mon -- 08:30 AM EDT 0.43 feet Low Tide
Mon -- 09:46 AM EDT Moonset
Mon -- 02:33 PM EDT 6.39 feet High Tide
Mon -- 07:45 PM EDT Sunset
Mon -- 08:51 PM EDT 0.61 feet Low Tide
Mon -- 10:03 PM EDT Moonrise
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 |
| 4.6 | 5.8 | 6.3 | 6.1 | 5.1 | 3.7 | 2.3 | 1.2 | 0.5 | 0.5 | 1.3 | 2.7 | 4.2 | 5.5 | 6.3 | 6.3 | 5.6 | 4.3 | 2.9 | 1.7 | 0.9 | 0.6 | 1.1 | 2.3 |
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 (12,3,4,5)
(on/off) Help
Ground Weather Radar Station Upton, NY
(on/off) Help
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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. |