Tuesday, June19, 2018 L-36.com


Marine Weather and Tides
Groton, CT

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:13AMSunset 8:26PM Tuesday June 19, 2018 11:44 PM EDT (03:44 UTC) Moonrise 11:52AMMoonset 12:30AM Illumination 42% Phase: First Quarter Moon; Moon at 7 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- 1004 Pm Edt Tue Jun 19 2018
Overnight..NE winds 5 to 10 kt. Seas 1 ft or less.
Wed..E winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less.
Wed night..S winds 5 to 10 kt, becoming se after midnight. Seas 1 ft or less. Chance of showers in the evening, then showers likely after midnight.
Thu..NE winds 5 to 10 kt, becoming E in the afternoon. Seas 1 ft or less. Chance of showers in the morning.
Thu night..E winds around 5 kt. Seas 1 ft or less.
Fri..E winds around 5 kt, becoming se in the afternoon. Seas 1 ft or less.
Fri night..SE winds 5 to 10 kt. Seas 1 ft or less.
Sat..SE winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the afternoon.
Sat night..S winds around 10 kt. Seas 1 ft or less. Chance of showers in the evening.
Sun..SW winds 10 to 15 kt. Seas 1 ft or less, then around 2 ft in the afternoon.
Sun night..W winds 10 to 15 kt. Seas around 2 ft.
ANZ300 1004 Pm Edt Tue Jun 19 2018
Synopsis for the long island waters and new york harbor.. High pressure continues to weaken over the region overnight and will move offshore Wednesday. An area of low pressure approaches Wednesday, passing to our south Wednesday night. Canadian high pressure builds in Thursday through Thursday night, then gradually slides to the northeast Friday into Friday night. A frontal system affects the region Saturday into Sunday. High pressure then builds into the area early next week.

7 Day Forecast for Marine Location Near Groton city, CT
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location: 41.3, -72.08     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 200214
afdokx
area forecast discussion
national weather service new york ny
1014 pm edt Tue jun 19 2018

Synopsis
High pressure continues to weaken over the region overnight and
will move offshore Wednesday. An area of low pressure approaches
Wednesday, passing to our south Wednesday night. Canadian high
pressure builds in Thursday through Thursday night, then
gradually slides to the northeast Friday into Friday night. A
frontal system affects the region Saturday into Sunday. High
pressure then builds into the area early next week.

Near term until 6 am Wednesday morning
Clouds increasing from the west as high pressure weakens over
the local region. Light NW flow will become more variable in
direction at times. Weather will remain dry. Min temperatures
were adjusted slightly higher across western sections and kept
nearly the same as before for eastern sections where radiational
cooling has been more effective so far.

Lows should continue to run around normal, generally from the
middle 50s to middle 60s. Min forecast temperatures will be near
70 in and around the nyc metro area.

Short term 6 am Wednesday morning through Wednesday night
High pressure over the region slides east on Wednesday. We are
generally looking at dry conditions on Wednesday, however an
increase in clouds can be expected as an area of low pressure
approaches from the west. There is a low chance for a few
showers west of nyc late in the afternoon.

Wednesday temperatures will climb into the middle and upper
70s, with a few lower 80 degree readings in and around the nyc
metro.

Rain will continue to overspread the region Wednesday night, as
low pressure slides south of the region. There are some
differences with the forecast models with respect to the
placement of the low and the amount of precipitation. The 12z
nam was a bit of an outlier with well over an inch of qpf. Sided
more with the 12z gfs ECMWF and wpc guidance, with a general
half to three quarters of an inch across the southern half of
the cwa, with lesser amounts across the lower hudson valley and
southern connecticut. Precipitable waters increase to 1.75 to
around 2" Wednesday night, so there is the potential for locally
heavy rainfall as well. Can not rule out a few rumbles of
thunder as well.

Lows Wednesday night should run a few degrees above normal.

Long term Thursday through Tuesday
Models in general agreement with the upper air pattern through the
period. Mean upper troughing across the NE on thu, will give way to
brief ridging on Friday. The next feature of note will be an upper
low over the central us on Thu fri, eventually shearing NE towards
the region this weekend as a northern stream trough amplifies south
through ontario quebec. A few pieces of energy will work through the
ne, before the upper trough axis swings through early next week.

This appears to be followed by upper ridging.

In terms of sensible weather, tranquil and seasonable late june
conditions expected Thursday Friday as canadian high pressure builds
to the north. Unsettled weather expected Sunday as low pressure
track well to the nw, with a warm front moving through the region
Saturday, and cold front on Sunday. At this point, appears to be a
high shear low CAPE situation with warm frontal prefrontal trough
passage Sat into Sat night, bringing threat of showers and a few
thunderstorms. Brief very warm and humid interlude on Sunday may
allow for a few thunderstorms along the cold front as well.

Then return to tranquil and seasonable conditions early next week as
canadian high pressure builds from the northwest.

Aviation 03z Wednesday through Sunday
High pressure builds into the region from the north overnight
into Wednesday, moving off the new england coast Wednesday
afternoon. A wave of low pressure approaches from the west
toward 00z Thursday.

Vfr through the forecast.

Winds n-ne under 10 kt, become light and variable outside of
the nyc terminals. Light NE to E winds become southerly
Wednesday morning into midday.

Outlook for 00z Thursday through Sunday
Wednesday night Showers likely with MVFR to ifr conditions.

Thursday MVFR early with showers ending, then becomingVFR.

Friday Vfr.

Saturday A chance of showers, possibly a thunderstorm, sat
into Sat night.

Sunday Vfr expected. Slight chc of a shower.

Marine
High pressure building over the waters will keep winds and seas
below SCA levels through fri. Next chance for SCA conditions
may be Sat night into Sun with moderate S SW flow ahead of cold
front.

Hydrology
Dry conditions are forecast tonight into Wednesday morning.

Currently forecasting 1 4 to 3 4 of an inch basin average
rainfall from late Wednesday afternoon through Wednesday night
with the heaviest amounts across NE nj, new york city, and long
island. With very high precipitable waters forecast, there is
the potential for locally heavy rainfall with any stronger
convection. Areas experiencing locally heavy rainfall could
experience minor flooding, mainly of urban and known poor
drainage areas.

No significant widespread hydrologic impacts are currently
expected from Thursday into early next week.

Equipment
Nyc NOAA weather radio station kwo-35 (162.55 mhz) remains off
the air for an extended period of time.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... None.

Synopsis... Jm nv
near term... Bc jm
short term... Bc
long term... Nv
aviation... 19
marine... Bc nv
hydrology... Bc nv
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NLNC3 - 8461490 - New London, CT 4 mi44 min N 1.9 G 5.1 70°F 66°F1011.2 hPa (+2.0)
MTKN6 - 8510560 - Montauk, NY 19 mi44 min 71°F 63°F1011.2 hPa (+1.8)
44039 - Central Long Island Sound 32 mi29 min NW 3.9 G 5.8 67°F
QPTR1 - 8454049 - Quonset Point, RI 41 mi44 min N 5.1 G 6 71°F 69°F1011.6 hPa (+2.1)
NWPR1 - 8452660 - Newport, RI 42 mi44 min N 4.1 G 7 71°F 61°F1011.1 hPa (+2.1)
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 42 mi54 min W 3.9 G 5.8 69°F 62°F3 ft1011.3 hPa (+1.7)60°F
NWHC3 - 8465705 - New Haven, CT 44 mi44 min NNE 1.9 G 4.1 73°F 66°F1011.7 hPa (+2.0)
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 46 mi44 min NNE 4.1 G 7 70°F 1011.3 hPa (+2.1)
PRUR1 46 mi44 min 70°F 51°F
NAXR1 - Narragansett Bay Reserve, RI 46 mi59 min N 4.1 69°F 1011 hPa53°F
CPTR1 - 8452944 - Conimicut Light, RI 48 mi44 min N 7 G 9.9 72°F 72°F1011.4 hPa (+2.1)

Wind History for New London, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT3 mi1.8 hrsN 510.00 miFair71°F52°F51%1010.8 hPa
Westerly, Westerly State Airport, RI15 mi51 minN 410.00 miFair69°F52°F55%1011.4 hPa
Montauk, Montauk Airport, NY17 mi50 minN 4 mi68°F55°F65%1011.4 hPa
Chester, Chester Airport, CT23 mi69 minN 310.00 mi68°F51°F56%1012.2 hPa

Wind History from GON (wind in knots)
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Last 24hrS11SW4SW5SW4S6W3NW5NW8N12N8NW16
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1 day agoS3CalmCalmCalmS4SW4CalmSW6S4SW7SW11SW8SW12SW8SW14SW10SW9SW7SW6SW8SW11SW10
G17
SW93
2 days agoNW3W4W4W4CalmCalmN3NW3CalmCalmS5S7S9S6S6SW9S7S7S5CalmCalmS4CalmCalm

Tide / Current Tables for Silver Eel Pond, Fishers Island, N.Y.
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Silver Eel Pond
Click for Map
Tue -- 12:30 AM EDT     Moonset
Tue -- 02:15 AM EDT     2.76 feet High Tide
Tue -- 05:14 AM EDT     Sunrise
Tue -- 09:08 AM EDT     0.02 feet Low Tide
Tue -- 11:52 AM EDT     Moonrise
Tue -- 03:02 PM EDT     2.60 feet High Tide
Tue -- 08:24 PM EDT     Sunset
Tue -- 09:38 PM EDT     0.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.12.52.82.72.31.81.30.80.300.20.81.422.42.62.52.11.71.30.80.40.40.7

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Tue -- 12:30 AM EDT     Moonset
Tue -- 01:21 AM EDT     2.94 knots Max Flood
Tue -- 04:38 AM EDT     -0.00 knots Slack
Tue -- 05:15 AM EDT     Sunrise
Tue -- 07:44 AM EDT     -3.42 knots Max Ebb
Tue -- 11:02 AM EDT     0.00 knots Slack
Tue -- 11:52 AM EDT     Moonrise
Tue -- 01:55 PM EDT     3.03 knots Max Flood
Tue -- 05:20 PM EDT     -0.01 knots Slack
Tue -- 08:18 PM EDT     -3.16 knots Max Ebb
Tue -- 08:24 PM EDT     Sunset
Tue -- 11:36 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.12.92.82.10.9-0.6-2.1-3.2-3.4-2.8-1.6-0.11.52.732.71.80.5-1-2.4-3.1-3-2.1-0.9

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Northeast    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.
target = "new">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 Boston, MA
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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.