Wednesday, June20, 2018 L-36.com


Marine Weather and Tides
Old Saybrook Center, 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 5:15AMSunset 8:28PM Wednesday June 20, 2018 9:35 AM EDT (13:35 UTC) Moonrise 1:01PMMoonset 1:05AM Illumination 46% 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- 712 Am Edt Wed Jun 20 2018
Today..E winds around 5 kt, becoming S this afternoon. Seas 1 ft or less.
Tonight..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the evening, then showers likely after midnight with vsby 1 to 3 nm.
Thu..E winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the morning with vsby 1 to 3 nm.
Thu night..E winds 5 to 10 kt. Seas 1 ft or less.
Fri..E winds 5 to 10 kt. Seas 1 ft or less.
Fri night..E winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms.
Sat..SE winds 10 to 15 kt. Seas building to around 2 ft. Showers and tstms likely.
Sat night..S winds 10 to 15 kt, becoming sw after midnight. Seas around 2 ft. Chance of showers and tstms. Patchy fog. Vsby less than 1 nm.
Sun..SW winds 10 to 15 kt. Seas around 2 ft. Patchy fog in the morning. Vsby less than 1 nm in the morning.
Sun night..W winds 10 to 15 kt, becoming nw 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Chance of showers and tstms after midnight. Patchy fog after midnight. Winds and seas higher in and near tstms.
ANZ300 712 Am Edt Wed Jun 20 2018
Synopsis for the long island waters and new york harbor.. High pressure retreats to the east, as an area of low pressure riding along a stalled frontal boundary tracks from the ohio river valley today to near the mid-atlantic coast by Thursday morning. This low exits to the east on Thursday as a separate cold front pushes to our south, followed by weak high pressure building over the region into Friday. A frontal system will slowly approach the area on Friday, as the high retreats to the northeast, and then impacts the region over the weekend.

7 Day Forecast for Marine Location Near Old Saybrook Center, CT
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location: 41.28, -72.35     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 201123
afdokx
area forecast discussion
national weather service new york ny
723 am edt Wed jun 20 2018

Synopsis
High pressure retreats to the east, as an area of low pressure
riding along a stalled frontal boundary tracks from the ohio
river valley today to near the mid-atlantic coast by Thursday
morning. This low exits to the east on Thursday as a separate cold
front pushes to our south, followed by weak high pressure
building over the region into Friday. A frontal system will
slowly approach the area on Friday, as the high retreats to the
northeast, and then impacts the region over the weekend. High
pressure will build in behind the system into next Tuesday.

Near term until 6 pm this evening
Clouds were increased this mrng based on stlt, otherwise the
fcst is on track. Wnw flow aloft this morning, flattens as a
northern stream shortwave approaches from the west this
afternoon. There could be some stray showers by late afternoon
as the shortwave approaches, mainly across far western zones.

Highs today should be near normal, mainly from the mid 70s to
around 80 across the region.

Short term 6 pm this evening through 6 pm Thursday
A northern stream trough builds into the area tonight, this
coupled with some low level instability (focused mainly over the
southern 1 2 of the cwa) should bring some showers to the
region tonight, and possibly a rumble of thunder as well (mainly
to the southern 1 2 of the cwa). Precipitable waters increase
to from 1.75 to around 2 inches (with values around 2 inches
focused over the southern 1 2 of the cwa), so locally heavy
rainfall is possible, especially in association with any
stronger convection overnight. Refer to the hydrology section
of the afd for details on expected rainfall amounts and any
impacts.

There is some uncertainty on the timing of the showers tonight,
but for now a consensus timing would be for the most numerous
showers and best chance for any locally heavy rainfall to occur
from around 9pm- 5am.

The timing for the end of the rainfall has slowed, with showers
now expected to linger into Thursday morning. The showers
likely should come to an end by mid-late morning, as the axis
of the northern stream trough exits to the east, allowing for a
drying NW flow to set up over the region by afternoon.

Lows tonight and highs on Thursday should be near to slightly
above normal.

Long term Thursday night through Tuesday
The models are in good agreement with the general pattern in the
long term, although some timing and placement issues remain. An
approximately 1020 hi will be set up from the maritimes swwd to cntrl
new england fri. At the same time, SW flow aloft develops as an h5
low spins over the midwest. This will result in increasing thetae
and chcs for shwrs and tstms Fri and particularly Fri ngt. The upr
support arrives Sat and Sat ngt. The GFS is a bit faster than the
ecmwf. Likely pops have been included during the day on Sat based on
a blend of all of the model data. As the upr trof arrives on Sun and
mon, there will be additional chances for pcpn. These appear to be a
bit more diurnally focused, with daytime heating providing the added
instability boost needed. High pres then builds in on Tue and dries
out the area. The nbm was used for temps thru the period.

Aviation 12z Wednesday through Sunday
High pressure will be over the region today, then weak low pressure
passes through or nearby the area tonight.

Vfr today, then mostly MVFR tonight in -shra -ra.

Light and variable winds with an easterly component shifts se-s this
morning, increasing to around 10 kt by noon.

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 15 mi47 min N 5.1 G 8 67°F 63°F1012.5 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 15 mi40 min N 5.1 G 5.1 68°F 1013.3 hPa55°F
44039 - Central Long Island Sound 19 mi80 min NNE 3.9 G 5.8 65°F
MTKN6 - 8510560 - Montauk, NY 26 mi47 min 66°F 63°F1012.8 hPa
NWHC3 - 8465705 - New Haven, CT 30 mi47 min NE 1 G 4.1 67°F 65°F1013.2 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 44 mi45 min NNE 7.8 G 9.7 62°F 62°F2 ft1012.9 hPa (+0.9)57°F
BRHC3 - 8467150 - Bridgeport, CT 45 mi53 min NNE 5.1 G 7 68°F 61°F1012.5 hPa

Wind History for New London, CT
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SW8
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G6
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G11
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G13

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chester, Chester Airport, CT11 mi40 minN 010.00 miA Few Clouds68°F53°F60%1013.2 hPa
Groton / New London, Groton / New London Airport, CT16 mi1.7 hrsN 710.00 miFair66°F53°F63%1012.9 hPa

Wind History from SNC (wind in knots)
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Last 24hrN11
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N12N9
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NW9
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N11N8
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N7N5
G12
N8CalmNW3NW4CalmN3N4N4N4NW3CalmCalmCalmN3Calm
1 day agoS10
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SW106S3SW5SW65SW5W6
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2 days agoN6NW73
G10
CalmSW8S7S7S5
G10
S5S5S5S6S5SW6SW6SW6SW6SW5SW5SW5SW5SW6SW8
G15
SW9

Tide / Current Tables for Old Saybrook Point, Connecticut
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Old Saybrook Point
Click for Map
Wed -- 01:04 AM EDT     Moonset
Wed -- 04:58 AM EDT     3.47 feet High Tide
Wed -- 05:16 AM EDT     Sunrise
Wed -- 06:52 AM EDT     First Quarter
Wed -- 11:18 AM EDT     -0.05 feet Low Tide
Wed -- 01:00 PM EDT     Moonrise
Wed -- 05:44 PM EDT     3.67 feet High Tide
Wed -- 08:25 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.61.222.73.33.53.32.71.810.3-00.10.61.42.233.53.73.32.71.91.10.5

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Wed -- 01:03 AM EDT     Moonset
Wed -- 02:23 AM EDT     2.69 knots Max Flood
Wed -- 05:15 AM EDT     Sunrise
Wed -- 05:41 AM EDT     -0.00 knots Slack
Wed -- 06:52 AM EDT     First Quarter
Wed -- 08:44 AM EDT     -3.16 knots Max Ebb
Wed -- 12:02 PM EDT     0.00 knots Slack
Wed -- 12:59 PM EDT     Moonrise
Wed -- 02:57 PM EDT     2.88 knots Max Flood
Wed -- 06:21 PM EDT     -0.01 knots Slack
Wed -- 08:24 PM EDT     Sunset
Wed -- 09:20 PM EDT     -3.08 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.61.92.62.620.9-0.5-1.9-2.9-3.1-2.6-1.5-0.11.42.52.92.61.80.5-1-2.3-3-2.9-2.2

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 (9,2,3,4)
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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.