Friday, August18, 2017 L-36.com


Marine Weather and Tides
New Haven, CT

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:03AMSunset 7:46PM Friday August 18, 2017 6:00 PM EDT (22:00 UTC) Moonrise 2:29AMMoonset 5:27PM Illumination 12% Phase: Waning Crescent; Moon at 26 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- 400 Pm Edt Fri Aug 18 2017
Tonight..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of tstms this evening. Showers. Tstms likely after midnight. Vsby 1 to 3 nm this evening.
Sat..SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 ft or less. Chance of showers and tstms in the morning. Patchy fog in the morning with vsby 1 to 3 nm.
Sat night..W winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 ft or less.
Sun..W winds 5 to 10 kt. Seas 1 ft or less.
Sun night..NW winds 5 to 10 kt. Seas 1 ft or less.
Mon..NW winds around 5 kt, becoming sw with gusts up to 20 kt in the afternoon. Seas 1 ft or less.
Mon night..SW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 ft or less.
Tue..SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon.
Tue night..SW winds 10 to 15 kt. Seas around 2 ft. Chance of showers and tstms.
Wed..SW winds 10 to 15 kt. Seas around 2 ft. Chance of showers and tstms.
Wed night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less. Chance of showers and tstms in the evening. Winds and seas higher in and near tstms.
ANZ300 400 Pm Edt Fri Aug 18 2017
Synopsis for the long island waters and new york harbor.. A cold front will move slowly east across the area late tonight, then stall just east of long island on Saturday. High pressure will follow Saturday night through Tuesday. A cold front will pass across the area Wednesday night followed by high pressure.

7 Day Forecast for Marine Location Near New Haven, CT
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location: 41.3, -72.92     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 181951
afdokx
area forecast discussion
national weather service new york ny
351 pm edt Fri aug 18 2017

Synopsis
A cold front will move slowly east across the area late tonight,
then stall just east of long island on Saturday. High pressure
will follow Saturday night through Tuesday. A cold front will
pass across the area Wednesday night followed by high pressure.

Near term until 11 pm this evening
Severe thunderstorm watch in effect for portions of
northeast nj... Southeast ny... Nyc... Western long island and
western ct through 9 pm...

damaging wind gusts are possible with any thunderstorm that
develops through 9 pm as they approach from the west.

In addition to the severe weather threat, the threat of flash
flooding remains high due to a combination of earlier rainfall
of up to 4 inches in some areas, anomalously high dew points and
precipitable water values up to 2.2 inches. As such, a flash
flood watch was issued for NE nj, the metro nj nyc area,
including rockland, westchester, and nassau counties in ny and
southern fairfield county in ct until 11 pm this evening with
the expectation that showers and thunderstorms will increase
ahead of the cold front.

Satellite imagery shows a SW NE dry slot advecting NE across ne
nj. This will increase sfc based and low lvl instability
resulting in the development of organized convection mainly aft
20z this afternoon from SW to ne.

There is a moderate risk of rip currents at ocean beaches,
potentially becoming high this afternoon.

Short term 11 pm this evening through Saturday night
Leftover showers and tstms will end with the passage of the cold
front between 06z and 12z overnight. With light winds forecast
during this time, areas of fog will develop, possibly dense
across long island and southern ct.

With a digging upstream trough approaching Saturday, the cold
front may not make it too far off the long island coast. In
fact, it's possible that it might retrograde a bit until the
passage of this trough Saturday night.

Dryer air will advect east across the area Saturday night as
high pressure advects east toward the area.

Long term Sunday through Friday
A broad area of high pres will build in Sun and mon. This will
produce seasonable temps and mostly clear skies. A thermal ridge
will build into the region Tue into wed, producing a mini heat
wave. Some spots, particularly across nern nj, may hit the 2 day
heat advy criteria. As subtropical moisture becomes entrained
in the flow, an increase in high clouds can be expected by wed.

The cold frontal timing has slowed slightly from the previous
12z model suite, so right now the timing is for the late aftn
and eve. Although the best chance for tstms will be with the
fropa wed, there will be chances prior, albeit lower, due to the
unstable airmass and onset of lowering heights. Because of the
progged position of the front and tendency of the guidance to
smooth out the temp gradient, highs were manually raised on wed.

A significant cool down then looks to follow for the end of the
week. The models have been very consistent with this signal,
although the exact magnitude of the cold airmass remains in
question. It would not be totally surprising to see some lows in
the furthest outlying areas touch the upr 40s next weekend.

Aviation 20z Friday through Wednesday
A cold front slowly approaches the region this evening but lags
nearby until early Saturday.

Showers and thunderstorms cross all the nyc terminals between 21z
and 01z. What is left of the line will be east of kisp and kgon by
04-05z. Any storm may contain gusty winds and torrential rain.

MVFR ifr lifr ceilings are likely with the convection. Little or no
improvement is expected overnight since overall conditions will
remain saturated and fog and stratus are likely to continue or
redevelop.VFR returns Saturday morning as drier air works into the
region.

Southerly winds this afternoon, mainly between 10 to 15 kts. Gusts
to 25 kt possible along the coast. Higher gusts possible with any
thunderstorm. Winds become west and eventually northwest early
Saturday but remain light.

Ny metro enhanced aviation weather support...

detailed information, including hourly TAF wind component forecasts,
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 1 mi42 min SSW 8 G 8.9 76°F 77°F1009.2 hPa
BRHC3 - 8467150 - Bridgeport, CT 16 mi48 min SSE 4.1 G 5.1 77°F 75°F1008.3 hPa
44069 42 mi60 min SSW 16 G 18 77°F 78°F77°F
NLNC3 - 8461490 - New London, CT 44 mi42 min S 8.9 G 9.9 73°F 71°F1009.8 hPa

Wind History for New Haven, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Haven, Tweed-New Haven Airport, CT3 mi67 minS 710.00 miOvercast78°F73°F87%1008.9 hPa
Bridgeport, Sikorsky Memorial Airport, CT14 mi68 minS 710.00 miOvercast80°F75°F85%1008.7 hPa
Meriden, Meriden Markham Municipal Airport, CT15 mi67 minS 810.00 miOvercast79°F73°F85%1008.8 hPa
Oxford, Waterbury-Oxford Airport, CT17 mi69 minSSW 57.00 miMostly Cloudy78°F75°F90%1010.5 hPa
Chester, Chester Airport, CT23 mi85 minS 85.00 miFog/Mist77°F75°F94%1010.2 hPa

Wind History from HVN (wind in knots)
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Last 24hrS8S6S6S4S4SE5S6SE6SE5SE6SE6SE5SE6SE6S8S8S5SE8S9S7S9S7S7S10
1 day agoNW6NW3CalmNW4CalmN7N5N5N3N5NE4N4N7N6CalmW7S6S7S8S8S7S6SE9SE6
2 days agoS6S8S7CalmS3CalmSW4W5SW33CalmCalmNW5N5N8NW8N12N10
G16
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G17
N10NW6NW7

Tide / Current Tables for New Haven (city dock), Connecticut
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New Haven (city dock)
Click for Map
Fri -- 02:29 AM EDT     Moonrise
Fri -- 02:38 AM EDT     0.03 feet Low Tide
Fri -- 06:04 AM EDT     Sunrise
Fri -- 08:46 AM EDT     5.98 feet High Tide
Fri -- 02:55 PM EDT     0.30 feet Low Tide
Fri -- 05:26 PM EDT     Moonset
Fri -- 07:46 PM EDT     Sunset
Fri -- 09:10 PM EDT     6.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.41.10.20.10.823.54.85.765.44.32.91.60.70.30.823.556.36.86.65.5

Tide / Current Tables for Branford Harbor, Connecticut
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Branford Harbor
Click for Map
Fri -- 02:20 AM EDT     0.03 feet Low Tide
Fri -- 02:29 AM EDT     Moonrise
Fri -- 06:03 AM EDT     Sunrise
Fri -- 08:37 AM EDT     5.91 feet High Tide
Fri -- 02:38 PM EDT     0.30 feet Low Tide
Fri -- 05:26 PM EDT     Moonset
Fri -- 07:45 PM EDT     Sunset
Fri -- 09:01 PM EDT     6.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.10.80.10.21.12.33.755.85.85.13.92.61.30.50.412.33.85.36.36.86.35.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for New York City/Upton, NY (18,4,5,8)
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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.