Monday, May29, 2017 L-36.com


Marine Weather and Tides
Guilford Center, CT

Version 3.4
What's New / NOTES
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 5:19AMSunset 8:17PM Monday May 29, 2017 11:08 AM EDT (15:08 UTC) Moonrise 9:27AMMoonset 12:00AM Illumination 17% Phase: Waxing Crescent; Moon at 4 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- 1015 Am Edt Mon May 29 2017
Today..E winds 15 to 20 kt with gusts up to 20 kt...diminishing to around 10 kt late. Seas 2 to 3 ft. Showers late this morning and early afternoon...then chance of showers late. Patchy fog. Vsby 1 to 3 nm.
Tonight..NE winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers in the evening. Patchy drizzle. Patchy fog. Vsby 1 to 3 nm.
Tue..SE winds 5 to 10 kt. Seas 1 ft or less. Patchy fog in the morning with vsby 1 to 3 nm.
Tue night..SE winds 5 to 10 kt...diminishing to around 5 kt after midnight. Seas 1 ft or less. Chance of showers in the evening...then showers likely after midnight.
Wed..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the morning.
Wed night..SW winds 5 to 10 kt. Seas 1 ft or less.
Thu..W winds 5 to 10 kt. Seas 1 ft or less.
Fri..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers at night.
ANZ300 1015 Am Edt Mon May 29 2017
Synopsis for long island waters and new york harbor.. A low pressure system passes to the south...then southeast through tonight. A weak frontal boundary approaches from the west Tuesday then crosses the area Tuesday night. A weak cold front then moves over the tri-state from Wednesday into Wednesday night. High pressure builds across the mid-atlantic coast Thursday and Thursday night. A cold front approaches from the west Friday.

7 Day Forecast for Marine Location Near Guilford Center, CT
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location: 41.27, -72.67     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 291426
afdokx
area forecast discussion
national weather service new york ny
1026 am edt Mon may 29 2017

Synopsis
A low pressure system approaches passes through into this
evening. A weak cold front approaches from the west Tuesday,
then crosses the area Tuesday night... Followed by another on
Wednesday. High pressure then builds to the south through
Thursday night. Another cold front approaches on Friday then
slowly crosses the area Friday night.

Near term until 6 pm this evening
Two vorticity maximums ahead of a broader upper low to the west
are influencing the development of showers across the area this
morning. Localized brief moderate to heavy rainfall will be
possible as another round moves across nj into portions of
southern ny ct including long island, evident in upstream
observations and given convective appearance on satellite.

Showers gradually taper off from west to east by evening, though
with onshore flow expect a continuation of patchy drizzle and
fog.

Unseasonably cool temperatures today as clouds and rain keep
temperatures in the upper 50s to around 60 for highs, some 10 to
15 degrees below normal.

There is a moderate risk of rip currents for area beaches.

Short term 6 pm this evening through 6 pm Tuesday
Frontal system pushes east of the area tonight, along with the
coastal storm. After some lingering showers early this evening,
conditions should remain dry. However, drizzle and fog may
persist overnight, with low level moisture trapped under an
inversion.

Another front approaches slowly from the west. Chances for rain
increase from west to east during the day Tuesday. Enough
instability for some thunder, but nothing severe expected.

Temperatures continue to be below normal.

Long term Tuesday night through Sunday
The models continue to have differences in how they handle the very
broad closed low that will be over SE canada Tuesday night through
Thursday night. As a result they also differ in the strength and
timing of shortwaves rotating around the base of the low, and hence
on the precise timing of precipitation during this time frame.

However, do have likely pops in for Tuesday night, as the models do
agree there should be some measurable rainfall across the region
then, but do have differences in timing during the night. Lows
Tuesday night should be a few degrees above normal.

For Wednesday and Wednesday night have mainly chance pops across
northern zones and slight chance pops across southern zones. With
showalter indices progged to 0 to -2, also have a slight chance of
thunder in for Wednesday afternoon and evening. Highs Wednesday and
lows Wednesday night should be a few degrees above normal as well.

Zonal flow sets up Thursday and Thursday night, and it appears the
region and with significant shortwaves progged to the NE and NW during
this time frame, have gone with a dry forecast then.

The model differences become even more noticeable Friday-Saturday.

For Friday, do have chance pops throughout by afternoon and continue
through Friday evening (along with a slight chance of thunder). Then
limit pops to slight chance from late Friday night-Saturday morning.

Then go with a dry forecast late Saturday Saturday night as both the
gfs and ECMWF show the core of the closed low to the NE then.

The new ECMWF has joined the 00z GFS in keeping Sunday dry, but
noting it previously had a coastal low approaching (now just
suppressed farther s), do have slight chance pops for Sunday.

Temperatures Thursday through Saturday night will feature near
normal highs and lows a few degrees above normal. Highs Sunday are
currently forecast to be a few degrees below normal.

Aviation 14z Monday through Friday
A weakening frontal system will approach from the west, while
low pressure passes off to the southeast today. The area will
be between the two systems, under an area of weak high
pressure. This will result in widespread clouds and periods of
light rain and or drizzle.

Expect widespread MVFR CIGS through this evening, with local
ifr at khpn. Showers moving in from the west could bring tempo
ifr vsby to the nyc metros toward midday, with thunder chances
nil as instability off to the west weakens. Thereafter could see
tempo ifr CIGS at any time from mid afternoon into the evening,
but the main push for ifr CIGS looks to be after midnight
tonight.

High confidence in E to ene winds 8-15 kt this morning,
diminishing to 10 kt or less this afternoon. Confidence still
only medium at best on wind direction this evening, which could
range anywhere from NW to se, but speeds should be light.

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 13 mi51 min E 7 G 13 56°F 60°F1014.4 hPa
BRHC3 - 8467150 - Bridgeport, CT 28 mi51 min E 13 G 18 55°F 1013.5 hPa
NLNC3 - 8461490 - New London, CT 31 mi51 min NE 5.1 G 7 53°F 54°F1014.2 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 32 mi39 min ENE 14 G 16 52°F 1013.1 hPa50°F
MTKN6 - 8510560 - Montauk, NY 41 mi51 min 52°F 53°F1013.9 hPa
44069 45 mi69 min E 16 G 21 56°F 64°F56°F

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, CT11 mi76 minE 86.00 miFog/Mist55°F52°F90%1013.8 hPa
Chester, Chester Airport, CT12 mi74 minENE 610.00 miMostly Cloudy52°F51°F100%1013.9 hPa
Meriden, Meriden Markham Municipal Airport, CT19 mi76 minVar 410.00 miOvercast55°F51°F87%1014.2 hPa

Wind History from HVN (wind in knots)
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Last 24hrE10E9E9SE8SE8SE7SE7SE8SE7E6E5E5E45E5NE5NE5E8E8E7E6E6E8E13
G17
1 day agoW3S9SE10SE9S9S8S8S6S5SE3CalmCalmCalmSE4CalmCalmCalmCalmSE3E3E5SE6E75
2 days agoW8CalmS7CalmS8CalmE4SE5E3NW7NW7N85NW6NW4CalmCalmNW3W6NW5NW8N12N12NW7

Tide / Current Tables for Guilford Harbor, Connecticut
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Guilford Harbor
Click for Map
Mon -- 02:17 AM EDT     6.33 feet High Tide
Mon -- 05:21 AM EDT     Sunrise
Mon -- 08:40 AM EDT     -0.64 feet Low Tide
Mon -- 09:27 AM EDT     Moonrise
Mon -- 02:56 PM EDT     5.76 feet High Tide
Mon -- 08:15 PM EDT     Sunset
Mon -- 08:57 PM EDT     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.55.76.36.15.13.620.5-0.4-0.60.11.42.94.45.45.85.34.22.81.50.40.10.51.6

Tide / Current Tables for Branford, Branford River, Connecticut
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Branford
Click for Map
Mon -- 02:23 AM EDT     7.16 feet High Tide
Mon -- 05:21 AM EDT     Sunrise
Mon -- 08:48 AM EDT     -0.64 feet Low Tide
Mon -- 09:27 AM EDT     Moonrise
Mon -- 03:02 PM EDT     6.51 feet High Tide
Mon -- 08:15 PM EDT     Sunset
Mon -- 09:05 PM EDT     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.96.37.175.94.32.50.8-0.3-0.601.43.14.866.56.14.93.31.80.60.10.41.6

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 (11,2,3,4)
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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.