Friday, April20, 2018 L-36.com


Marine Weather and Tides
Branford Center, CT

Version 3.4
What's New / NOTES
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.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:01AMSunset 7:38PM Friday April 20, 2018 11:58 PM EDT (03:58 UTC) Moonrise 9:41AMMoonset 12:00AM Illumination 32% Phase: Waxing Crescent; Moon at 6 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 948 Pm Edt Fri Apr 20 2018
Tonight..NW winds 15 to 20 kt with occasional gusts up to 25 kt, diminishing to around 10 kt after midnight. Seas 1 ft or less.
Sat..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less.
Sat night..N winds 5 to 10 kt. Seas 1 ft or less.
Sun..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less.
Sun night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less.
Mon..N winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less.
Mon night..S winds 5 to 10 kt, becoming sw after midnight. Seas 1 ft or less.
Tue..S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 ft or less.
Tue night..SE winds 5 to 10 kt. Seas 1 ft or less. Chance of rain after midnight.
Wed..E winds 10 to 15 kt. Seas around 2 ft. Rain likely.
Wed night..E winds 10 to 15 kt, becoming ne 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Rain likely, mainly in the evening.
ANZ300 948 Pm Edt Fri Apr 20 2018
Synopsis for the long island waters and new york harbor.. High pressure builds in from the west through tonight and remains over the waters through Monday. A coastal low approaches from the southeastern seaboard Tuesday, and moves through Wednesday, and to the northeast of the area Thursday.

7 Day Forecast for Marine Location Near Branford Center, CT
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location: 41.26, -72.79     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 210153
afdokx
area forecast discussion
national weather service new york ny
953 pm edt Fri apr 20 2018

Synopsis
High pressure builds in from the west through tonight, then
remains over the region into Monday. A coastal low will likely
affect the region the middle of next week.

Near term until 6 am Saturday morning
Forecast is on track with only minor changes made.

An upper longwave trough along the eastern canadian coast and
extending into the northeast remains through tonight with a
northwest cyclonic flow. Meanwhile surface low pressure along
the canadian coast tracks northeast as high pressure builds to
the west. The atmosphere will remain dry and cloud-free tonight.

Winds will be diminishing, and likely decouple late tonight.

This will allow for good radiational cooling with clear
conditions. Inland areas will likely see patchy to areas of
frost and included in the weather forecast. However, the spring
frost freeze program has not begun across these areas.

Short term 6 am Saturday morning through Saturday night
The upper trough remains across the northeast through Saturday
night as the center of the surface high builds into the
northeast. The weather will remain quiet and cloud free.

Cyclonic flow and weak cold advection continue through Saturday
night, however, the airmass will be modifying under full sun,
and highs Saturday will be approaching normal levels. Saturday
night will be cloud-free with light winds and again there will
be ideal radiational cool conditions. So, expect areas and
patchy frost inland.

Long term Sunday through Friday
Upper air pattern will very much resemble early springtime
as an upper low over the mississippi valley slowly works east
on the heels of a departing northern branch trough over the
northeast. Ridging both aloft and at the surface builds across
the region to start the week but then gives way to the
aforementioned southern branch close low. The system will lift
northward in response to a northern branch shortwave trough
moving into the upper midwest and great lakes, sending surface
low pressure up the eastern seaboard Tuesday into Wednesday.

Overrunning rains are forecast to develop across the area
Tuesday night and continue into Wednesday night. There are
some differences thereafter though with the global models as
the ecwmf is more progressive with this system and dries things
out for the end of week, while the GFS and ggem close off the
northern branch trough with unsettled conditions lingering until
a cold frontal passage Friday night. Thus, will maintain a
low chance of showers for the end of the week. The point to be
made here there is clearly uncertainty in the guidance for the
end of the week as northern branch shortwave energy dives
southeast across the upper midwest and great lakes region.

However, all the global models are pointing to amplification of
the ridge out west and the trough reestablishing itself across
the east by next weekend.

As for temperatures, much of the period will feature seasonable
temperatures with the exception of Wednesday, where onshore
flow will keep highs several degrees below normal.

Aviation 02z Saturday through Wednesday
Vfr as high pressure builds from the west through Saturday
morning, then settles over the region Saturday afternoon and
evening.

Nw winds abate this evening, with speeds decreasing to around
10kt. Winds will range around 10 kts late Saturday morning and
afternoon. Wind direction will start off NW on Saturday, before
becoming more W in the afternoon for the nyc metro and coastal
terminals, possibly even SW at kjfk kgon kbdr kisp, with exact
timing uncertain.

Ny metro enhanced aviation weather support...

detailed information, including hourly TAF wind component fcsts,
can be found at:
http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWHC3 - 8465705 - New Haven, CT 6 mi40 min N 12 G 16 41°F 46°F1027.1 hPa
44039 - Central Long Island Sound 11 mi43 min NNW 16 G 19 42°F 2 ft
BRHC3 - 8467150 - Bridgeport, CT 22 mi46 min N 2.9 G 7 40°F 43°F1027.1 hPa
NLNC3 - 8461490 - New London, CT 38 mi40 min N 7 G 8.9 42°F 43°F1025.7 hPa
MTKN6 - 8510560 - Montauk, NY 46 mi40 min 43°F 44°F1025.8 hPa

Wind History for New Haven, CT
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Last
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NW11
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G25
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G8
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Haven, Tweed-New Haven Airport, CT5 mi65 minNNW 710.00 miFair42°F24°F49%1026.6 hPa
Chester, Chester Airport, CT17 mi63 minNW 10 G 1710.00 miFair39°F24°F56%1025.7 hPa
Meriden, Meriden Markham Municipal Airport, CT17 mi65 minNW 1210.00 miFair40°F25°F55%1026.7 hPa
Bridgeport, Sikorsky Memorial Airport, CT19 mi66 minNNW 810.00 miFair41°F24°F51%1027.2 hPa
Oxford, Waterbury-Oxford Airport, CT24 mi67 minN 910.00 miFair36°F24°F62%1028.5 hPa

Wind History from HVN (wind in knots)
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Last 24hrNW7NW6NW9NW9
G16
W56NW6
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1 day agoCalmCalmCalmCalmCalmNE4E3N5NE5N10N10N10N6N6N3NW5NW7NW8W7NW8NW11
G19
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2 days agoW7W4W4W7W6W7W6W6W9W8W9W7W10
G16
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G16
SW9SW7W9NW5NW4NW4Calm

Tide / Current Tables for Branford Harbor, Connecticut
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Branford Harbor
Click for Map
Fri -- 02:42 AM EDT     6.71 feet High Tide
Fri -- 06:04 AM EDT     Sunrise
Fri -- 09:01 AM EDT     -0.30 feet Low Tide
Fri -- 09:41 AM EDT     Moonrise
Fri -- 03:20 PM EDT     5.96 feet High Tide
Fri -- 07:36 PM EDT     Sunset
Fri -- 09:18 PM EDT     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.35.66.56.75.94.52.71.20.1-0.30.11.22.74.25.35.95.84.83.42.110.40.61.4

Tide / Current Tables for New Haven Harbor, New Haven Reach, Connecticut (sub)
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New Haven Harbor
Click for Map
Fri -- 02:54 AM EDT     7.18 feet High Tide
Fri -- 06:04 AM EDT     Sunrise
Fri -- 09:24 AM EDT     -0.35 feet Low Tide
Fri -- 09:41 AM EDT     Moonrise
Fri -- 03:35 PM EDT     6.38 feet High Tide
Fri -- 07:37 PM EDT     Sunset
Fri -- 09:38 PM EDT     0.35 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.25.86.87.26.65.23.51.80.5-0.3-0.20.82.345.46.26.35.54.12.61.30.50.41.1

Weather Map and Satellite Images
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wmap_A
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 (23,6,7,8)
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Ground Weather Radar Station Upton, NY
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weather_mapweather_map weather_map

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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.