Tuesday, September25, 2018 L-36.com


Marine Weather and Tides
Mashantucket, CT

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:38AMSunset 6:40PM Tuesday September 25, 2018 8:36 AM EDT (12:36 UTC) Moonrise 7:22PMMoonset 6:54AM Illumination 100% Phase: Full Moon; Moon at 15 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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ANZ237 Block Island Sound- 716 Am Edt Tue Sep 25 2018
.small craft advisory in effect through Wednesday afternoon...
Today..SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. A chance of showers this morning, then showers this afternoon. Vsby 1 to 3 nm, decreasing to 1 nm or less this afternoon.
Tonight..S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 7 ft. Patchy fog. A chance of showers. Vsby 1 nm or less.
Wed..S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 nm or less.
Wed night..SW winds 10 to 15 kt, becoming nw after midnight. Gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog. Showers likely with a chance of tstms. Vsby 1 nm or less.
Thu..N winds 10 to 15 kt with gusts up to 20 kt, becoming ne 5 to 10 kt in the afternoon. Seas 4 to 6 ft.
Thu night..NE winds 5 to 10 kt. Seas 3 to 5 ft.
Fri..E winds 5 to 10 kt. Seas 2 to 4 ft.
Fri night..W winds around 5 kt. Seas around 2 ft.
Sat..W winds 5 to 10 kt. Seas around 2 ft.
Sat night..W winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 716 Am Edt Tue Sep 25 2018
Synopsis for massachusetts and rhode island coastal waters.. A warm front will lift north across the waters Tue night, resutling in very heavy rain, limited visibility, and strong winds. A cold front will follow shortly after, passing through the region Wed night. High pres builds over new eng Thu and Fri. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.


7 Day Forecast for Marine Location Near Mashantucket, CT
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location: 41.46, -71.97     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 251155 cca
afdokx
area forecast discussion... Corrected
national weather service new york ny
755 am edt Tue sep 25 2018

Synopsis
A warm front will slowly move through the region through this
evening. A cold front will move across the area Wednesday and
Wednesday night. High pressure then builds north of the region
through late week, as low pressure moves along a stalled frontal
boundary south of the area. A stronger area of high pressure
builds from the west through the weekend.

Near term until 6 pm this evening
Forecast on track with just some minor adjustments to reflect
latest observations, specifically temperatures and dew points.

Otherwise, a warm front will slowly approach the area today.

Overrunning moisture will allow for light rain showers at the
start. Convergence aloft seen on the kewr radar will mean radar
coverage should increase over the next few hours, coupled with a
strengthening 950 hpa jet, intensity of the rain should also
increase and become more stratiform. The rain will become
heavy at times this morning as the jet strengthens to 35 to 45
kt.

There remains a chance for heavy rain through the early
afternoon, then the threat will decrease from west to east as
the warm front moves through and the 950 hpa jet moves away from
the region. Also, precipitable waters will increase to 2 inches
during this time frame and dew points will rise into the upper
60s and lower 70s, another indication of locally heavy rainfall
possible. Conditions have been dry lately, so despite the threat
for heavy rain, widespread flooding is not expected, with minor
urban and poor drainage flooding being the primary concern. The
weather prediction center has placed the entire tri-state in a
slight risk for excessive rainfall, so isolated flash flooding
cannot be ruled out.

There is a high rip current risk for the atlantic beaches
today.

Short term 6 pm this evening through 6 pm Wednesday
As the warm front lifts north of the region, steady rain will
transition to light showers. Eastern areas may continue with
some moderate to briefly heavy rain at times as the 950 jet may
still be in that area. Thereafter, the rest of the night should
feature a chance for light rain showers and very humid
conditions. With abundant low level moisture, patchy fog will
be possible across the entire area. Some guidance is indicating
that the fog may be dense, especially with dew points rising
into the lower 70s region-wide. However, there was not enough
confidence to include dense fog in the forecast.

A cold front will approach on Wednesday. Pre-frontal trough
associated with the front moves into the region late in the day.

Elevated instability will allow for a slight chance for
thunderstorms in the morning. As the day progresses, there will
be a better chance for thunderstorms in the afternoon. With a
very moist air mass in place and strong winds aloft, some
storms may be strong as we head into the afternoon. Gusty winds
would therefore be possible with any thunderstorms. Lifted
indices in the -2 to -4 range indicates some threat for severe
thunderstorms, especially with the cold front approaching. Some
of these storms could produce damaging winds, but right now that
is a low threat.

There is a high rip current risk for the atlantic beaches
Wednesday.

Long term Wednesday night through Monday
The cold front moves across the region Wednesday night with the
continued threat of showers and thunderstorms, some which may be
capable of producing heavy rainfall and strong gusty winds.

High pressure then builds north of the region on Thursday.

Meanwhile, the cold front stalls south of the area with an area of
low pressure expected to travel along the front, possibly bringing
another chance of precipitation to the region on Thursday night and
early Friday.

A stronger area of high pressure builds into the area this weekend,
with dry weekend expected.

High temperatures Thursday through the weekend will climb into the
upper 60s and 70s.

Aviation 12z Tuesday through Saturday
MVFR and ifr stratus will be in place with some scattering out
of ifr stratus this afternoon. Low confidence on this scattering
out occurring. Rain moves in and lasts much of the day with
heavy rain at times. There will be a lull in the rain tonight,
with leftover low moisture resulting in likely ifr stratus and
some fog as well.

Winds will be gusty and out of the east to start, with sustained
speeds near 15kt and gusts 20-25kt. The winds become more SE and
then S after the warm front passage. Winds speeds and gusts will
also decrease also this afternoon into tonight. Winds become
light and variable tonight.

There will be a se-s low level jet of 40-45 kt at 2kft this morning
into early this afternoon.

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
NLNC3 - 8461490 - New London, CT 9 mi37 min 56°F 70°F1030.7 hPa (-1.1)
LDLC3 - New London Ledge CT - Ledge Light Weather 12 mi37 min ENE 19 G 23 58°F 1031.7 hPa (-1.4)55°F
MTKN6 - 8510560 - Montauk, NY 28 mi37 min 62°F 69°F1030.1 hPa (-0.6)
QPTR1 - 8454049 - Quonset Point, RI 31 mi43 min 59°F 67°F1032.3 hPa
NWPR1 - 8452660 - Newport, RI 34 mi37 min 60°F 64°F1031.9 hPa (-0.8)
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 36 mi37 min 59°F 1032.5 hPa (-0.6)
NAXR1 - Narragansett Bay Reserve, RI 36 mi52 min ENE 8 58°F 1033 hPa55°F
CPTR1 - 8452944 - Conimicut Light, RI 38 mi37 min 56°F 68°F1032.6 hPa (-0.7)
PVDR1 38 mi37 min 55°F 1032.7 hPa (-0.8)52°F
FOXR1 - 8454000 - Providence, RI 39 mi37 min 55°F 68°F1032.3 hPa (-0.7)
44039 - Central Long Island Sound 43 mi67 min E 21 G 25 62°F 71°F4 ft
FRXM3 45 mi37 min 57°F 52°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 45 mi37 min 58°F 1032.5 hPa (-0.7)
FRVM3 - 8447386 - Fall River, MA 46 mi37 min 56°F 69°F1032.8 hPa (-0.7)

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, CT10 mi1.7 hrsNE 1010.00 miLight Rain55°F52°F90%1031.3 hPa
Westerly, Westerly State Airport, RI12 mi44 minNNE 610.00 miOvercast56°F54°F93%1031.7 hPa
Willimantic, Windham Airport, CT23 mi45 minENE 59.00 miLight Rain53°F51°F93%1031.9 hPa

Wind History from GON (wind in knots)
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NE10NE13NE13NE12NE9NE9NE10NE10NE10NE10NE9NE10NE12NE11NE10NE10E12
1 day agoN6N6N6N5CalmCalmSW4CalmNE4CalmCalmN3N3CalmCalmCalmN3N6N6N7N8N9N7N7
2 days agoNW12
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N11N13
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NW11N9N9N9N7N7N7N7N6N6N6N7NE6N5N6N8N6NE5N5

Tide / Current Tables for Norwich, Thames River, Connecticut
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for The Race, Long Island Sound, New York Current
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New York City/Upton, NY (8,2,3,4)
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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.