Thursday, January18, 2018 L-36.com


Marine Weather and Tides
Poquonock Bridge, 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 7:08AMSunset 4:49PM Thursday January 18, 2018 8:45 AM EST (13:45 UTC) Moonrise 9:04AMMoonset 7:26PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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 Est Thu Jan 18 2018
Today..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Tonight..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Fri..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Fri night..W winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt after midnight. Seas 3 to 5 ft.
Sat..SW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 7 ft.
Sat night..W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft.
Sun..W winds 5 to 10 kt. Seas 2 to 4 ft.
Sun night..NW winds 5 to 10 kt. Seas 2 to 3 ft.
Mon..E winds 5 to 10 kt. Seas 2 to 3 ft.
Mon night..SE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. 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 Est Thu Jan 18 2018
Synopsis for massachusetts and rhode island coastal waters.. Large high pres will build S of the waters today through this weekend. Low pressure will pass well W of the region late Monday, but its associated front will likely bring periods of rain and gusty southerly winds. 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 Poquonock Bridge, CT
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location: 41.33, -72.02     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 181152
afdokx
area forecast discussion
national weather service new york ny
652 am est Thu jan 18 2018

Synopsis
High pressure builds to the southwest through tonight, then well to
the south of long island Friday and Friday night, as an area of low
pressure passes well to the north of the region, then both of
these continue to move east on Saturday. A back door cold front
will pass through late Saturday night into Sunday, then lift
back slowly north as a warm front Monday into Monday night. A
stronger cold front will approach from the west late Monday
night, and pass through on Tuesday. A secondary cold front
approaches from the north on Tuesday night, then pushes to the
south on Wednesday.

Near term until 6 pm this evening
The black ice threat remains across the region this morning, have
addressed in an sps valid through 14z.

A closed 700-500 hpa low passes to the south this morning, followed
by shortwave ridging at 700-500 hpa building in this afternoon. With
forcing from the closed low passing well to the south, then
subsidence from the ridging this afternoon, it should be dry today.

Other than some passing mid-high clouds this morning (mainly over
southern zones), it should be mostly sunny today. Highs today should
be around 5 degrees below normal, with afternoon wind chills from
the upper 10s to mid 20s.

Short term 6 pm this evening through Friday night
The 700-500 hpa shortwave ridging exits to the east this evening,
followed by a 700-500 hpa shortwave trough passing by overnight.

With the subsidence from the ridging this evening, and the main from
the shortwave staying to the north of the region, it should be dry
tonight. Could see some passing mid-high clouds overnight with the
shortwave, with the best chance over N zones. Lows tonight should be
around 5 degrees below normal, with wind chills from around 10 to 20
degrees.

Weakening northern stream ridging at 700-500 hpa crosses the area
Friday, giving way to zonal flow aloft Friday night. With shortwaves
staying well to the N and S of the area, and dry low to mid levels,
it should be dry with minimal cloud cover during this time frame.

Highs Friday should be near to slightly below normal, and lows
Friday night around 5 degrees above normal.

Long term Saturday through Wednesday
Flow aloft will be mainly zonal this weekend between a flat
trough to the north and a ridge over the southeast. The
resulting return flow should give us a mild weekend, with highs
on Sat in the lower 50s, then 45-50 on Sunday with
approach passage of a weak back door cold front.

High pressure will nose down into new england Sunday night into mon
while a warm front associated with strengthening low pressure moving
ne across the plains states approaches. There is some question as to
amount of warming aloft that will take place with the front, and
some spotty light wintry precip is possible late Sunday night into
mon morning, especially inland NW of nyc. Precip chances should
gradually increase Mon afternoon evening with the warm front
just off to the sw, and deep layer SW flow having begun after
passage of an upper ridge axis.

Models continue to trend later with moderate to locally heavy
rainfall ahead of a sfc cold front and negatively tilted upper
trough, and have pushed greatest chances ahead to daytime tue. Temps
on Tue ahead of the front should be on the mild side, with upper 40s
inland and lower 50s nyc metro long island. Temps should cool down
thereafter for mid next week but still remain above avg, with
building high pressure after the cold frontal passage being a combo
of maritime pacific and or modified continental polar origin.

Aviation 12z Thursday through Monday
High pressure builds south of the region through Friday.

Vfr conditions will remain through the TAF period.

Winds and gusts have subsided early this morning. The winds
will strengthen again, with gusts at or just above 20 kt for the
late morning and into the afternoon. Winds will likely waver
between 300 and 330 magnetic during the day, likely averaging
just left of 310 magnetic for the morning push and then just to
the right for the aft eve push. Winds and gusts subside Thursday
evening.

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
LDLC3 - New London Ledge CT - Ledge Light Weather 3 mi35 min NNW 11 G 14 24°F 1019 hPa10°F
NLNC3 - 8461490 - New London, CT 4 mi51 min N 7 G 9.9 22°F 37°F1015.2 hPa
MTKN6 - 8510560 - Montauk, NY 20 mi51 min 25°F 35°F1015.6 hPa
44039 - Central Long Island Sound 36 mi172 min NNW 9.7 G 16 22°F 1 ft
QPTR1 - 8454049 - Quonset Point, RI 37 mi51 min NNW 4.1 G 5.1 22°F 32°F1015.3 hPa
NWPR1 - 8452660 - Newport, RI 39 mi51 min NNW 7 G 14 23°F 35°F1014.6 hPa
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 42 mi51 min NNW 2.9 G 5.1 21°F 1015 hPa
NAXR1 - Narragansett Bay Reserve, RI 42 mi120 min N 4.1 20°F 995 hPa14°F
CPTR1 - 8452944 - Conimicut Light, RI 45 mi51 min NNW 9.9 G 11 23°F 34°F1014.8 hPa
PVDR1 46 mi51 min NW 5.1 G 6 21°F 1014.9 hPa13°F
FOXR1 - 8454000 - Providence, RI 47 mi51 min NNW 6 G 9.9 20°F 34°F1014.6 hPa
NWHC3 - 8465705 - New Haven, CT 47 mi51 min NNW 13 G 15 19°F 34°F1016.7 hPa

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT2 mi1.8 hrsNNW 910.00 miFair20°F10°F65%1014.8 hPa
Westerly, Westerly State Airport, RI12 mi52 minNNW 810.00 miFair22°F12°F68%1015.3 hPa
Montauk, Montauk Airport, NY18 mi1.9 hrsNNW 11 mi25°F12°F60%1015.6 hPa

Wind History from GON (wind in knots)
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Last 24hrNE6NE5NE5N3N4NW6NW5NW5N6N3NW4NW5NW7N8NW9NW10NW9N4N11N11N7N7N9N11
G19
1 day agoCalmCalmCalmS3CalmSE7SE5SE7E5E3SE7SE6E6SE8SE9E10E8SE10E10E7E9NE5NE5NE4
2 days agoN11N12N16
G21
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N12N12
G20
N11N14N11N12N12N11N8N8NE6N3NW3NW3CalmCalmNW3

Tide / Current Tables for Noank, Mystic River entrance, Connecticut
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Noank
Click for Map
Thu -- 04:00 AM EST     0.16 feet Low Tide
Thu -- 07:10 AM EST     Sunrise
Thu -- 08:03 AM EST     Moonrise
Thu -- 09:34 AM EST     2.48 feet High Tide
Thu -- 04:37 PM EST     -0.16 feet Low Tide
Thu -- 04:47 PM EST     Sunset
Thu -- 06:25 PM EST     Moonset
Thu -- 10:08 PM EST     2.03 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.310.60.30.20.411.62.12.42.42.21.71.20.70.3-0.1-0.10.30.91.51.821.9

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Thu -- 12:05 AM EST     -0.00 knots Slack
Thu -- 02:59 AM EST     -2.74 knots Max Ebb
Thu -- 06:03 AM EST     0.00 knots Slack
Thu -- 07:10 AM EST     Sunrise
Thu -- 08:03 AM EST     Moonrise
Thu -- 08:54 AM EST     2.69 knots Max Flood
Thu -- 12:08 PM EST     -0.00 knots Slack
Thu -- 03:18 PM EST     -3.21 knots Max Ebb
Thu -- 04:47 PM EST     Sunset
Thu -- 06:26 PM EST     Moonset
Thu -- 06:35 PM EST     0.00 knots Slack
Thu -- 09:21 PM EST     2.68 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-1.2-2.3-2.7-2.3-1.3-0.11.32.32.72.31.40.2-1.2-2.5-3.2-3-2.1-0.80.61.92.62.51.9

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 (8,2,3,4)
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Ground Weather Radar Station Boston, MA
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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.