Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Old Mystic, CT

Version 3.4
What's New / NOTES
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.
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.

Sunrise 5:50AMSunset 7:41PM Wednesday April 25, 2018 2:15 PM EDT (18:15 UTC) Moonrise 3:02PMMoonset 3:50AM Illumination 79% Phase: Waxing Gibbous; Moon at 10 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- 116 Pm Edt Wed Apr 25 2018
.small craft advisory in effect through Thursday afternoon...
This afternoon..SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Rain with isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 nm or less.
Tonight..SE winds 10 to 15 kt with gusts up to 25 kt, becoming S 5 to 10 kt after midnight. Seas 5 to 8 ft. Areas of dense fog. A chance of rain. Vsby 1 nm or less.
Thu..SW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Seas 4 to 7 ft. Areas of dense fog. Vsby 1 nm or less.
Thu night..W winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft.
Fri..S winds 5 to 10 kt, becoming se 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Showers likely.
Fri night..S winds 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Seas 3 to 5 ft. Showers likely.
Sat..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Sat night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Sun..W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sun night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 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 116 Pm Edt Wed Apr 25 2018
Synopsis for massachusetts and rhode island coastal waters.. Expect showers across the waters as low pressure approaching from the southwest this afternoon lifts across new england tonight. Another low will approach from the southwest on Friday resulting in showers across the waters Friday evening, before it lifts over new england Friday night. A cold front will cross the waters late Saturday with a few showers possible. Dry high pressure will build in from the west Saturday night and Sunday. 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 Old Mystic, CT
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location: 41.39, -71.98     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 251745
afdokx
area forecast discussion
national weather service new york ny
145 pm edt Wed apr 25 2018

Synopsis
Low pressure will approach from the south today, and then pass
across the area tonight along with a trailing cold front. The
low will move into new england on Thursday. Another low will
move through on Friday, followed by a cold frontal passage over
the weekend. High pressure will then build in early next week.

Near term until 6 pm this evening
Made some changes based on latest radar and hi-res model trends.

Se h9 LLJ of 50 kt transporting moisture up into the area and
providing low level convergence lift to produce light rain over
most of the area attm. Hi-res models are way overdoing
convective rainfall potential, and now think most of the rain
into this afternoon as the LLJ lifts up across the area should
be light to moderate, with maybe still a rumble of thunder
possible this afternoon across eastern long island and SE ct.

Satellite imagery also shows dry slot riding up from the south,.

So expect rain to come to an end in most places late this
afternoon, and would not rule out some peeks of Sun late in nyc
metro before sunset given partial clearing that is taking place
in southern de and off the southern nj coast.

Gusty e-se winds this morning should diminish this afternoon as
the low approaches and the pressure gradient weakens.

Temps will struggle to rise much, with late day highs expected
once the steadier rain begins to taper somewhat. Blended met,
mav and ecs data.

Short term 6 pm this evening through 6 pm Thursday
Sfc low moves in the general area of nyc tonight as northern
stream possibly phases with weakening shortwave, although
degree of phasing remains in question.

Regardless, winds lighten, and fog may develop due to the recent
rain, light winds and minimal t TD spread.

A few showers are possible as the low and sfc trough pass.

Any fog lifts late tonight as westerly wind flow behind
departing low to the north stirs up the boundary layer, and
drier air moves in. Lows range from the upper 40s to lower 50s
per MOS blend.

On Thursday, sunshine returns, mixed with a few clouds and any
rain showers remain to the north, closer to upper shortwave, sfc
low. Westerly flow will allow for deeper mixing, and temps
rising well into the 60s.

Long term Thursday night through Tuesday
The ECMWF and GFS are in very good agreement with low pres tracking
thru the area fri. The sys is the remnants of the upr low currently
over neb. The modeling indicates a weak sys as the low runs out
ahead of an approaching upr trof. The thermals indicate all rain.

The timing is late Fri and Fri ngt attm, although some timing changes
cannot be ruled out. A more intense low would be possible if the upr
trof arrives quicker, or if the remnant low slows. A cold front then
brings a chc for some more shwrs on sat. Everything is progged to
clear out on Sun with some fair wx clouds likely as the cold pool
aloft passes thru. The post frontal high reaches pa Sun ngt. This
should be close enough to allow for the winds to decouple and
produce prime radiational cooling cond. As a result, the colder mex
was used for temps Sun ngt as opposed to the warmer model blends.

Frost freeze issues are possible if this unfolds as currently
expected. Fair wx with a warming trend for the beginning of next
week with an upr ridge building into the region.

Aviation 18z Wednesday through Monday
Low pressure approaches today, moves overhead tonight, then
lifts north of the region on Thursday.

Ifr or less through midnight. Light to moderate rain will
continue today. Can not rule out some pockets of moderate rain
this afternoon.

Fog is expected to develop late this afternoon evening and
continue until the winds become westerly (mainly around 08-10z)
lifr stratus and fog expected through the overnight.

Conditions improve toVFR after 08z-12z.

Easterly winds subside this afternoon, becoming light and
variable for evening push. Winds become westerly late
tonight early Thursday morning (08-10z).

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
NLNC3 - 8461490 - New London, CT 6 mi46 min ESE 13 G 19 53°F 49°F1010.9 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 8 mi36 min ESE 21 G 25 49°F 49°F
MTKN6 - 8510560 - Montauk, NY 24 mi46 min 50°F 44°F1010.5 hPa
QPTR1 - 8454049 - Quonset Point, RI 33 mi46 min SE 18 G 24 53°F 48°F1012.7 hPa
NWPR1 - 8452660 - Newport, RI 36 mi46 min ESE 17 G 22 50°F 45°F1012.3 hPa
NAXR1 - Narragansett Bay Reserve, RI 38 mi91 min SSE 9.9 54°F 994 hPa54°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 38 mi46 min SSE 12 G 19 55°F 1012.7 hPa
44039 - Central Long Island Sound 40 mi31 min ESE 16 G 19 53°F 1 ft
CPTR1 - 8452944 - Conimicut Light, RI 41 mi46 min SE 23 G 26 54°F 51°F1012.6 hPa
PVDR1 42 mi46 min SE 12 G 16 56°F 1013.1 hPa56°F
FOXR1 - 8454000 - Providence, RI 42 mi46 min S 12 G 14 55°F 50°F1012.7 hPa
FRXM3 47 mi46 min 56°F 54°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 48 mi46 min SE 16 G 21 56°F 1013 hPa
FRVM3 - 8447386 - Fall River, MA 48 mi46 min 56°F 48°F1013.5 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 48 mi86 min SE 18 G 21 49°F 44°F9 ft1010.4 hPa (-4.0)49°F

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, CT6 mi20 minE 15 G 251.00 miFog/Mist51°F51°F100%1010.3 hPa
Westerly, Westerly State Airport, RI10 mi23 minE 12 G 201.75 miLight Rain Fog/Mist52°F52°F100%1011.5 hPa
Montauk, Montauk Airport, NY22 mi22 minSE 8 G 19 mi53°F52°F96%1010.5 hPa

Wind History from GON (wind in knots)
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Last 24hrS11S10SE8SE8SE7SE9SE12SE8E8E9E9E12E10E11E9E11E10E12E14
G19
E13E15E15
G22
E12E15
G25
1 day agoS9S8S7S9S10S4S6S5S5SE3CalmCalmNE3CalmN3CalmCalmCalmS4S5S6S8S9S12
2 days agoSW15SW13
G19
SW11
G19
SW11W8SW7SW6W4W5CalmCalmCalmN4N3N4N5N7N6NE7CalmSE9SE11SE11S9

Tide / Current Tables for Noank, Mystic River entrance, Connecticut
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Noank
Click for Map
Wed -- 12:15 AM EDT     0.25 feet Low Tide
Wed -- 03:49 AM EDT     Moonset
Wed -- 05:53 AM EDT     Sunrise
Wed -- 06:04 AM EDT     2.52 feet High Tide
Wed -- 12:45 PM EDT     0.09 feet Low Tide
Wed -- 03:01 PM EDT     Moonrise
Wed -- 06:39 PM EDT     2.53 feet High Tide
Wed -- 07:39 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.81.41.92.32.52.42.11.71.20.70.20.10.411.62.12.52.52.321.51

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Wed -- 02:24 AM EDT     0.00 knots Slack
Wed -- 03:50 AM EDT     Moonset
Wed -- 05:17 AM EDT     2.69 knots Max Flood
Wed -- 05:53 AM EDT     Sunrise
Wed -- 08:33 AM EDT     -0.00 knots Slack
Wed -- 11:34 AM EDT     -3.19 knots Max Ebb
Wed -- 02:53 PM EDT     0.00 knots Slack
Wed -- 03:02 PM EDT     Moonrise
Wed -- 05:50 PM EDT     2.89 knots Max Flood
Wed -- 07:39 PM EDT     Sunset
Wed -- 09:07 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.7-1.8-0.60.92.12.72.51.90.8-0.7-2.2-3-3.1-2.5-1.30.21.72.72.92.51.60.2-1.4-2.7

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 (14,3,4,5)
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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.