Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Poquonock Bridge, 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 5:56AMSunset 7:37PM Saturday April 21, 2018 11:39 AM EDT (15:39 UTC) Moonrise 10:35AMMoonset 12:43AM Illumination 37% Phase: Waxing Crescent; Moon at 6 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- 929 Am Edt Sat Apr 21 2018
This afternoon..W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Tonight..W winds 5 to 10 kt with gusts up to 20 kt, becoming nw after midnight. Seas 2 to 3 ft.
Sun..NW winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon. Seas around 2 ft.
Sun night..SW winds 10 to 15 kt, becoming nw 5 to 10 kt after midnight. Seas around 2 ft.
Mon..NE winds around 5 kt, becoming S in the afternoon. Seas around 2 ft.
Mon night..S winds 5 to 10 kt. Seas around 2 ft.
Tue..S winds 5 to 10 kt. Seas around 2 ft.
Tue night..SE winds 10 to 15 kt. Seas 2 to 3 ft.
Wed..SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Rain likely.
Wed night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers. 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 929 Am Edt Sat Apr 21 2018
Synopsis for massachusetts and rhode island coastal waters.. High pressure will build over the waters today through Monday. Then shift offshore on Tuesday. Low pressure will move north along the eastern seaboard Tuesday night and Wednesday, lifting over the waters on Thursday. 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 211438
afdokx
area forecast discussion
national weather service new york ny
1038 am edt Sat apr 21 2018

Synopsis
High pressure builds in from the west through the weekend, and
remains over the region into Monday. A coastal low will affect
the region the middle of next week, possibly lingering into late
week.

Near term until 6 pm this evening
Forecast on track. Deep closed low continues to lift north of
new foundland, with mean troughing continuing over the NE us in
its wake. At the surface, high pressure builds into the region
from the west.

Continued W NW flow today with afternoon gustiness, but weaker
than Friday. A gradual moderation in airmass and deep mixing
should allow temps to rise into the mid to upper 50s. Late day
seabreeze possible along the immediate south coasts. Mostly
sunny skies expected with just a few cirrus and a few afternoon
cu across NE portions of the region with late day
shortwave trough passage.

Short term 6 pm this evening through Monday
Tranquil period with mean troughing in control of the NE us
through the weekend, then giving way to shortwave ridging Sunday
night into Monday. At the surface, high pressure will continue
to build in from the west Sunday and overhead on Monday.

Although, a weak front will move through the region late Sunday
in response to one final kicker shortwave moving through the
region.

A couple of clear and chilly nights tonight and Sunday night.

Areas of frost expected across outlying areas with good
radiational cooling into the upper 20s to lower 30s. Elsewhere
lows generally in upper 30s to lower 40s, and slightly milder
nyc nj metro.

Otherwise, mostly sunny, tranquil and seasonable spring
conditions Sunday and Monday. Highs generally in the upper 50s
to lower 60s on Sunday, with cooler temps along the south coasts
with afternoon sea breeze development. A bit warmer conditions
likely Monday (lower to mid 60s) , especially nyc nj metro and
interior, with continued moderation of airmass and developing
return flow. Along the coast, temps will likely hold in the
upper 50s to lower 60s with return flow and sea breezes
developing in the afternoon.

Long term Monday night through Friday
Upper air pattern will very much resemble early springtime as an
upper low over the mississippi valley this weekend slowly works east
on the heels of the departing trough over the northeast. Models in
good agreement with this energy and associated low pressure system
lifting northward towards the region Tuesday into Wednesday in
response to northern stream shortwave energy moving into the upper
midwest and great lakes. Overrunning rains are likely to develop
across the area Tuesday night and continue through Wednesday,
possibly Wed night.

Thereafter, models diverge in the amplification of this shortwave
energy over the the upper midwest and great lakes region during the
midweek period. This is further complicated by differences in
the amplification the next northern stream shortwave diving
into the great lakes and mississippi river valley for late week.

The evolution of these two troughs will determine the details
for the next low pressure system S affecting the region thu
thru sat. A chance of showers remain in the forecast during this
time to denote the potential.

So uncertainty in the guidance for the end of the week continues,
however, the global models continue to point to some degree of
troughing reestablishing itself across the northeast for next
weekend.

As for temperatures, much of the period will feature seasonable
temperatures with the exception of Wednesday, where onshore flow
will keep highs several degrees below normal.

Aviation 15z Saturday through Wednesday
High pressure will build in through the TAF period.

Vfr. Nw-w winds 10 kt or less with gusts 16-20 kt. Somewhat
better chance of winds favoring north of 310 magnetic through
the day, however low confidence of winds favoring one side of
310 magnetic, especially at kjfk and kewr - winds probably
fluctuate on either side through the day. A late day early
evening sea breeze is also possible for kjfk.

Outlook for 12z Sunday through Wednesday
Sunday through Tuesday Vfr.

Tuesday night through Wednesday MVFR or lower conditions
increasingly likely with rain. E winds near 10 kt gusting near
15-20 kt Wednesday.

Marine
Tranquil conditions expected this weekend through next Tuesday with
high pressure in control and a weak pressure gradient.

Low pressure moving up the eastern seaboard Tuesday into
Wednesday will result in increasing winds and building seas with
sca conditions likely to return by Wednesday morning.

Hydrology
Dry conditions are expected through Tuesday, with area rivers
and streams gradually receding.

A widespread rainfall is expected for the middle of next week
with the possibility of moderate to heavy rain. Predictability
is low on rainfall amounts and hydrologic impacts at this time.

Equipment
Nyc NOAA weather radio station kwo-35 (162.55 mhz) remains off
the air.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... None.

Synopsis... Nv
near term... Ds nv
short term... Nv
long term... Nv dw
aviation... Jc jm
marine... Nv dw
hydrology... Nv dw
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LDLC3 - New London Ledge CT - Ledge Light Weather 3 mi45 min WNW 8.9 G 13 49°F 22°F
NLNC3 - 8461490 - New London, CT 4 mi52 min W 7 G 14 50°F 44°F1027.1 hPa
MTKN6 - 8510560 - Montauk, NY 20 mi52 min 43°F 43°F1027.9 hPa
44039 - Central Long Island Sound 36 mi55 min W 9.7 G 12 45°F 1 ft
QPTR1 - 8454049 - Quonset Point, RI 37 mi58 min NW 12 G 16 48°F 45°F1026.7 hPa
NWPR1 - 8452660 - Newport, RI 39 mi52 min N 7 G 9.9
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 42 mi58 min NNW 5.1 G 9.9 51°F 1026.3 hPa
NAXR1 - Narragansett Bay Reserve, RI 42 mi115 min NNW 6 50°F 1004 hPa28°F
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 44 mi50 min WNW 12 G 14 43°F 42°F2 ft1028.5 hPa (+0.0)33°F
CPTR1 - 8452944 - Conimicut Light, RI 45 mi52 min NNW 14 G 17 47°F 45°F1026.1 hPa
PVDR1 46 mi52 min N 8.9 G 17 51°F 1026.4 hPa24°F
FOXR1 - 8454000 - Providence, RI 47 mi52 min NNE 12 G 17
NWHC3 - 8465705 - New Haven, CT 47 mi52 min NNW 17 G 21 48°F 46°F1028.4 hPa

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
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-12
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Last
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NW10
G14
N7
G12
N7
G19
NW6
G13
NW7
G11
N8
G14
N7
G11
N4
G10
NW5
G13
NW3
N7
G10
N1
G4
NW3
G8
W2
N3
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G5
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G6
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G14
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N1
G6
N3
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N4
G10
NW6
N3
G10
NW3
G8
NW4
G8
NW6
G11
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G13
NW4
G11
NW2
G5
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G10
NW6
G11
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G7
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G11
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G8
N4
G8
N10
G14
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G14
N12
N8
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NW6
G12
W7
G12
NW7
G13
W10
G15
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G17
SW12
G17
SW11
G22
SW6
G12
W6
W3
W1
G4
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G6
SW3
N1
N1
N4
--
--
NW1
N4
N2
N4
G10
N7
G10
NE4
G7

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT2 mi1.7 hrsN 1010.00 miFair49°F27°F43%1027.5 hPa
Westerly, Westerly State Airport, RI12 mi47 minWNW 7 G 1710.00 miA Few Clouds53°F25°F34%1027.2 hPa
Montauk, Montauk Airport, NY18 mi1.8 hrsWNW 8 mi48°F32°F54%1028.3 hPa

Wind History from GON (wind in knots)
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Last 24hrNW10
G19
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NW14NW11NW11
G19
NW11NW10
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NW8NW7NW7NW6N5N4N4NW8NW10NW10N10W12
G18
1 day agoN8NE6NW5NW9NW9NW8W8W9NW7NW8NW12
G18
NW15
G24
NW10
G18
W7NW9NW11NW7NW12W11NW8NW15
G23
NW15
G24
NW16
G25
NW15
G21
2 days agoW19
G23
SW17
G26
SW18
G26
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G26
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G22
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G23
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W13W7W5SW6SW8W6W4N4NE3SE5SE4NW3N5NE8N6N9N10

Tide / Current Tables for Noank, Mystic River entrance, Connecticut
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Noank
Click for Map
Sat -- 12:42 AM EDT     Moonset
Sat -- 01:32 AM EDT     2.87 feet High Tide
Sat -- 05:59 AM EDT     Sunrise
Sat -- 08:49 AM EDT     0.00 feet Low Tide
Sat -- 10:35 AM EDT     Moonrise
Sat -- 02:20 PM EDT     2.20 feet High Tide
Sat -- 07:34 PM EDT     Sunset
Sat -- 08:58 PM EDT     0.40 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.82.82.621.510.50.100.30.91.522.22.11.91.51.10.80.50.40.61.2

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Sat -- 12:42 AM EDT     Moonset
Sat -- 12:50 AM EDT     2.97 knots Max Flood
Sat -- 04:03 AM EDT     -0.01 knots Slack
Sat -- 05:59 AM EDT     Sunrise
Sat -- 07:20 AM EDT     -3.37 knots Max Ebb
Sat -- 10:35 AM EDT     Moonrise
Sat -- 10:37 AM EDT     0.00 knots Slack
Sat -- 01:28 PM EDT     2.77 knots Max Flood
Sat -- 04:47 PM EDT     -0.00 knots Slack
Sat -- 07:34 PM EDT     Sunset
Sat -- 07:49 PM EDT     -2.82 knots Max Ebb
Sat -- 10:54 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.632.41.40.1-1.3-2.6-3.3-3.2-2.2-0.90.51.92.72.721-0.3-1.6-2.5-2.8-2.3-1.20.1

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 (11,2,3,4)
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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.