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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 6:32AM | Sunset 5:35PM | Saturday February 23, 2019 10:12 AM EST (15:12 UTC) | Moonrise 11:32PM | Moonset 10:09AM | Illumination 82% |  |
ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 914 Am Est Sat Feb 23 2019
.gale watch in effect from Sunday evening through late Monday night...
Today..SE winds 5 to 10 kt. Seas 1 ft or less.
Tonight..SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 ft or less, then around 2 ft after midnight. Chance of rain in the evening, then rain after midnight with vsby 1 to 3 nm.
Sun..SE winds 10 to 15 kt, becoming sw in the afternoon. Occasional gusts up to 25 kt. Seas 2 to 3 ft. Rain. Vsby 1 to 3 nm.
Sun night..W winds 20 to 25 kt with gusts up to 35 kt, increasing to 25 to 30 kt with gusts up to 45 kt after midnight. Seas 3 to 5 ft, building to 4 to 7 ft after midnight.
Mon..W winds around 30 kt with gusts up to 45 kt. Seas 4 to 7 ft.
Mon night..NW winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 4 to 6 ft.
Tue..NW winds 15 to 20 kt. Seas 2 to 4 ft.
Tue night..NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less.
Wed..NW winds around 10 kt, becoming sw in the afternoon. Seas 1 ft or less.
Wed night..W winds 10 to 15 kt. Seas around 2 ft.
.gale watch in effect from Sunday evening through late Monday night...
Today..SE winds 5 to 10 kt. Seas 1 ft or less.
Tonight..SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 ft or less, then around 2 ft after midnight. Chance of rain in the evening, then rain after midnight with vsby 1 to 3 nm.
Sun..SE winds 10 to 15 kt, becoming sw in the afternoon. Occasional gusts up to 25 kt. Seas 2 to 3 ft. Rain. Vsby 1 to 3 nm.
Sun night..W winds 20 to 25 kt with gusts up to 35 kt, increasing to 25 to 30 kt with gusts up to 45 kt after midnight. Seas 3 to 5 ft, building to 4 to 7 ft after midnight.
Mon..W winds around 30 kt with gusts up to 45 kt. Seas 4 to 7 ft.
Mon night..NW winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 4 to 6 ft.
Tue..NW winds 15 to 20 kt. Seas 2 to 4 ft.
Tue night..NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less.
Wed..NW winds around 10 kt, becoming sw in the afternoon. Seas 1 ft or less.
Wed night..W winds 10 to 15 kt. Seas around 2 ft.
ANZ300 914 Am Est Sat Feb 23 2019
Synopsis for the long island waters and new york harbor.. High pressure will shift offshore this afternoon and tonight. A frontal system associated with strong low pressure tracking through the great lakes and southeast canada will impact the waters tonight into Sunday. High pressure returns early next week with a weaker area of low pressure possible during the middle of the week.
Synopsis for the long island waters and new york harbor.. High pressure will shift offshore this afternoon and tonight. A frontal system associated with strong low pressure tracking through the great lakes and southeast canada will impact the waters tonight into Sunday. High pressure returns early next week with a weaker area of low pressure possible during the middle of the week.
7 Day Forecast for Marine Location Near Westbrook Center, CT
Hourly EDIT Helplocation: 41.27, -72.47 debug
Area Discussion for - New York City/Upton, NY
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kokx 231421 afdokx area forecast discussion national weather service new york ny 921 am est Sat feb 23 2019 Synopsis High pressure moves offshore today. A deep low passing several hundred miles west then north of the region will produce unsettled weather tonight and Sunday. Mainly fair weather is expected next week, with a low potential for both a midweek system and an end of the week coastal low. Near term until 6 pm this evening Water vapor continues to indicates a stream of moisture pumping directly into the area from the subtropical pacific. The goes- east channel 4 (cirrus band) really shows the extent of the cirrus really well. While there are thin spots, a mostly cloudy characteristic fits what is being observed on satellite. The cirrus will only thicken through the day in this pattern. The forecast remains dry today as high pressure slowly drifts offshore. Middle and upper level ridge axis overhead will also help in keeping any precipitation with the approaching system well to our south and west. Highs will be near or slightly below average in the lower to middle 40s. Short term 6 pm this evening through 6 pm Sunday The main challenge tngt, outside of timing the exact onset of pcpn, is the fzra threat across the interior. Temps aloft will warm quickly, but very lgt sely flow will likely not be sufficient to displace the llvl cold air across the interior. Regardless, the entire airmass should modify enough to change all pcpn across the area to plain rain by around 10-12z sun. For the fcst, a model blend of the 2m data minus one degree was used for temps. The resultant temps are right around freezing across the interior, so any deviations of a degree or two from the fcst will result in as little as no fzra, or a more extensive area of fzra. A winter wx advy has been issued for orange county, where the prob of fzra is highest. Some pockets of fzra are possible from nwrn nj zones to interior ct zones. These areas have some fzra included in the fcst, along with a mention in the hwo. These areas could be upgraded to an advy if necessary based on future data. Across the rest of the area, all rain is expected. The rain tapers off from SW to NE during the day on sun. Again, the trend is slower, so ERN sections could see rain for most of the day. The nbm was used for temps, with the guidance remaining consistently mild for the day. For winds, pres gradient begins to tighten late tonight between departing high pres and strong low pres moving into the great lakes. Winds will start to increase late tonight and continue through sun, although low level inversion is expected to keep much of the winds from mixing down until the cold FROPA late sun aftn eve. Long term Sunday night through Friday The cold front associated with the sys comes thru Sun eve, right around 00z per the GFS and nam. Persistent dpva could help to trigger a few shsn Sun ngt and even mon, but moisture is limited. The fcst was kept dry for now with the deepest moisture N of the cwa. For winds, guidance has been overdoing wind events all season. Additionally, highest pressure rises behind the FROPA are expected to be across southern nj. Therefore, while winds are expected to be strong, am not confident enough to issue a high wind watch at this time. Current thinking is a strong wind advsy. Anticipating sustained winds between 25-35 mph with gusts 40-50mph, possibly 55mph with the strongest winds occurring on Monday. Winds then gradually decrease Mon night. Mainly fair and seasonably cold wx is then fcst for the rest of the week. The GFS has backed off on the sys for wed, and the ECMWF and gem are both dry. As a result, pops were reduced to 20 percent. |
There are some hints of a cstl sys for the end of the week or next weekend time period. A model blend was used with pops limited to slight chance Fri and Fri ngt. Aviation 14z Saturday through Wednesday Vfr into much of this evening as high pressure slides across. As a warm front approaches tonight, light rain with some MVFR CIGS may make it to the nyc metros after 03z-04z, becoming more widespread thereafter. A brief period of mixed precip is possible at the onset (around 06z) at kswf. Ifr likely develops aft 06z. N winds 5-10 kt to start will veer NE this morning, then become mainly se. Light E winds expected first half of tonight then increase back to around 10-14 kt at coastal terminals towards 12z with llws developing. Outlook for 12z Sunday through Wednesday Sunday Rain with ifr lifr conds and llws at coastal terminals during the morning. MVFR returns during the aftn behind warm fropa, thenVFR late behind cold fropa. Sunday night and Monday Vfr. Monday w-nw winds 15-25kt g35-45kt. Isolated stronger winds possible. Tuesday Vfr. Wednesday Chance of light snow with MVFR local ifr conds. Marine High pressure over the northeast shifts offshore this aftn and tonight as low pressure in the central plains tracks NE towards the great lakes while strengthening. The pres gradient will tighten late tonight with SCA conds developing on the ocean waters by sun morning. A warm front will lift into the waters during the morning, with a cold front passing late Sun aftn and eve. Winds will strengthen to gale force Sun eve with possibly even storm force gusts on the ocean waters late Sun night through mon. The strongest winds and highest seas will be during this time. Winds and seas gradually diminish Mon night and Tue although headlines will likely be needed through this time. Sub-advsy conds are then expected through the remainder of the forecast period. Hydrology Around 1-1.5 inches of rain is fcst tngt and sun. Some minor urban or poor drainage flooding will be possible. Otherwise, no hydrologic impacts are anticipated thru fri. 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... Winter weather advisory from 7 pm this evening to 6 am est Sunday for nyz067. Nj... None. Marine... Gale watch from Sunday evening through late Monday night for anz330-335-338-340-345. Storm watch from Sunday evening through Monday afternoon for anz350-353-355. Small craft advisory from 6 am to 6 pm est Sunday for anz350- 353-355. Synopsis... Jmc near term... Jmc ds short term... Jmc 24 long term... Jmc 24 aviation... 24 marine... 24 hydrology... Jmc 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 |
| LDLC3 - New London Ledge CT - Ledge Light Weather | 21 mi | 47 min | NNE 5.1 G 7 | 35°F | 1032.1 hPa | 20°F | ||
| NLNC3 - 8461490 - New London, CT | 21 mi | 42 min | N 2.9 G 7 | 35°F | 39°F | 1032.4 hPa | ||
| NWHC3 - 8465705 - New Haven, CT | 23 mi | 42 min | NE 7 G 8.9 | 33°F | 38°F | 1033 hPa | ||
| MTKN6 - 8510560 - Montauk, NY | 31 mi | 42 min | 34°F | 38°F | 1032.4 hPa | |||
| BRHC3 - 8467150 - Bridgeport, CT | 38 mi | 42 min | ENE 5.1 G 8 | |||||
| 44017 - 23 Nautical Miles Southwest of Montauk Point, NY | 46 mi | 82 min | NE 12 G 14 | 37°F | 41°F | 2 ft | 1032.8 hPa (+0.9) | 28°F |
Wind History for New London, CT
(wind in knots) EDIT (on/off) Help| 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 | N G10 | N G10 | N G9 | N G9 | N G8 | N | N | NW | NW | N | NW | N | N | N G8 | N G8 | N | N G7 | N G7 | NE | N | N G6 | N G8 | N G7 | N |
| 1 day ago | W G11 | W G8 | NW G9 | NW G8 | W G7 | W G9 | W | -- | NW G4 | N | NW | NW | W | W | NW | W | W | NW | W | NW | N G8 | NW G12 | ||
| 2 days ago | -- | S G7 | S G6 | SE G6 | S G5 | E | SE | E | NE | E | E | SE G9 | SE G11 | E G11 | E | E G11 | E G8 | N G11 | N G11 | N | N | N G4 | NW G7 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Chester, Chester Airport, CT | 8 mi | 37 min | Var 4 | 10.00 mi | Fair | 36°F | 17°F | 48% | 1031.8 hPa |
| New Haven, Tweed-New Haven Airport, CT | 22 mi | 79 min | NNE 4 | 10.00 mi | Overcast | 35°F | 19°F | 54% | 1032.7 hPa |
| Groton / New London, Groton / New London Airport, CT | 23 mi | 76 min | NNE 9 | 10.00 mi | Fair | 35°F | 19°F | 54% | 1032.5 hPa |
Wind History from SNC (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 | N | NW G18 | NW G19 | NW G14 | NW G16 | N | N G12 | NW G11 | NW | NW | NW | NW | N | N | N | N | N | N | N | N | N | N | ||
| 1 day ago | NW | G12 | W | NW | W G14 | NW G15 | NW G14 | NW G10 | NW | NW | NW | NW | NW | NW G13 | W | Calm | NW | Calm | Calm | NW | NW G13 | NW | ||
| 2 days ago | Calm | Calm | SE | S | G10 | S | S | E | Calm | Calm | E | E | Calm | Calm | Calm | SE | E | Calm | N | N | NW | N | Calm | N |
Tide / Current Tables for Westbrook, Duck Island Roads, Connecticut
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataWestbrook
Click for Map
Sat -- 01:18 AM EST 4.60 feet High Tide
Sat -- 06:33 AM EST Sunrise
Sat -- 07:30 AM EST -0.62 feet Low Tide
Sat -- 09:09 AM EST Moonset
Sat -- 01:46 PM EST 4.32 feet High Tide
Sat -- 05:33 PM EST Sunset
Sat -- 07:53 PM EST -0.42 feet Low Tide
Sat -- 10:31 PM EST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 01:18 AM EST 4.60 feet High Tide
Sat -- 06:33 AM EST Sunrise
Sat -- 07:30 AM EST -0.62 feet Low Tide
Sat -- 09:09 AM EST Moonset
Sat -- 01:46 PM EST 4.32 feet High Tide
Sat -- 05:33 PM EST Sunset
Sat -- 07:53 PM EST -0.42 feet Low Tide
Sat -- 10:31 PM EST 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 | 4.6 | 4.4 | 3.6 | 2.5 | 1.2 | 0.1 | -0.5 | -0.5 | 0.1 | 1.1 | 2.3 | 3.4 | 4.1 | 4.3 | 3.8 | 2.9 | 1.7 | 0.6 | -0.2 | -0.4 | -0 | 0.9 | 2 |
Tide / Current Tables for The Race, Long Island Sound, New York Current
EDIT (on/off) Help One Week of DataThe Race
Click for Map
Sat -- 01:59 AM EST -0.01 knots Slack
Sat -- 05:02 AM EST -3.87 knots Max Ebb
Sat -- 06:32 AM EST Sunrise
Sat -- 08:17 AM EST 0.00 knots Slack
Sat -- 09:07 AM EST Moonset
Sat -- 11:06 AM EST 3.31 knots Max Flood
Sat -- 02:23 PM EST -0.00 knots Slack
Sat -- 05:24 PM EST -3.58 knots Max Ebb
Sat -- 05:31 PM EST Sunset
Sat -- 08:35 PM EST 0.00 knots Slack
Sat -- 10:30 PM EST Moonrise
Sat -- 11:30 PM EST 3.35 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 01:59 AM EST -0.01 knots Slack
Sat -- 05:02 AM EST -3.87 knots Max Ebb
Sat -- 06:32 AM EST Sunrise
Sat -- 08:17 AM EST 0.00 knots Slack
Sat -- 09:07 AM EST Moonset
Sat -- 11:06 AM EST 3.31 knots Max Flood
Sat -- 02:23 PM EST -0.00 knots Slack
Sat -- 05:24 PM EST -3.58 knots Max Ebb
Sat -- 05:31 PM EST Sunset
Sat -- 08:35 PM EST 0.00 knots Slack
Sat -- 10:30 PM EST Moonrise
Sat -- 11:30 PM EST 3.35 knots Max Flood
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 |
| 2.9 | 1.7 | -0 | -1.9 | -3.3 | -3.9 | -3.4 | -2.2 | -0.5 | 1.3 | 2.7 | 3.3 | 3 | 2 | 0.6 | -1.1 | -2.6 | -3.5 | -3.4 | -2.5 | -1 | 0.7 | 2.3 | 3.2 |
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 (10,2,3,4)
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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. |