Sunday, August20, 2017 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 6:02AMSunset 7:40PM Sunday August 20, 2017 4:55 PM EDT (20:55 UTC) Moonrise 4:35AMMoonset 7:03PM Illumination 2% Phase: Waning Crescent; Moon at 28 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
    EDIT      (on/off)   Help
ANZ237 Block Island Sound- 324 Pm Edt Sun Aug 20 2017
Tonight..W winds 5 to 10 kt. Seas around 2 ft.
Mon..SW winds 5 to 10 kt. Seas 1 foot or less.
Mon night..SW winds 5 to 10 kt. Seas around 2 ft.
Tue..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft.
Tue night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers and tstms.
Wed..SW winds 15 to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. A chance of showers and tstms.
Wed night..W winds 5 to 10 kt, becoming nw after midnight. Seas 2 to 3 ft.
Thu..W winds 5 to 10 kt. Seas around 2 ft.
Thu night..NW winds 5 to 10 kt. Seas 1 foot or less.
Fri..NE winds 5 to 10 kt. Seas 1 foot or less.
Fri night..NE winds 5 to 10 kt. Seas 1 foot or less. 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 324 Pm Edt Sun Aug 20 2017
Synopsis for massachusetts and rhode island coastal waters.. High pres will build over the waters today through Mon. The high will move offshore Tue, allowing a cold front to approach Wed. Large high pres will begin to build over the region Thu. 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
   Hourly   EDIT   Help
location: 41.33, -72.02     debug


Area Discussion for - New York City/Upton, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kokx 201948
afdokx
area forecast discussion
national weather service new york ny
348 pm edt Sun aug 20 2017

Synopsis
High pressure building into the region through Monday morning
will settle to the south and east Monday afternoon, allowing a
weak warm front to approach Monday night. After a hot and humid
Tuesday, a cold frontal passage on Wednesday will produce a
drastic cooldown for the end of the week.

Near term until 6 am Monday morning
Cu continue to slowly thin out, with a mostly clear night coming
up. This along with diminishing winds should allow temps to trop
to the 50s and 60s in most areas, with only nyc remaining above
70 overnight.

Short term 6 am Monday morning through Monday night
Sky cover could be tricky in spots for the partial solar
eclipse, which should run from about 120 pm to 400 pm in nyc
and peak at 244 pm. Do expect some sct high clouds and also some
sct cu, possibly a narrow band of broken CU with the sea breeze
closer to the north shore of long island and in southern ct.

South facing coastlines may be better viewing locations as any
lower clouds that form inland with the sea breeze.

Temps should rise quickly into early afternoon, and per 15z run
of the hrrrx which has been modified to incorporate impact on
incoming solar radiation due to the eclipse, may actually drop a
couple of degrees between 2-4 pm, then rebound. Overall temps
should still reach the mid upper 80s, possibly 90 in parts of
urban NE nj.

The approaching warm front could spark an isolated shower or
tstm toward sunset well west of nyc, with slight chances
overspreading nearly all the area later Mon night. Lows should
be in the upper 60s lower 70s, and it will become muggy as
dewpoints also increase into that range.

Long term Tuesday through Sunday
A cold front will reach the area on Wednesday per the 12z suite of
model guidance, which was in good agreement. This means that Tue is
setting up to be hot and humid. Winds progged around 200 degrees
will pump lots of humidity into the area, and across the ERN half of
the CWA keep actual temps slightly suppressed despite h85
warming towards 20c. The humidity will compensate for any lack
of heat, with just about all areas likely AOA 90 for a heat
index. Across the normally hottest areas like nj zones, the
heat index ATTM looks to reach about 100. There could be a few
aftn and eve tstms, particularly N and W of nyc, but there will
at least be an increase in dense cirrus from upstream
convective debris. As a result the fcst GOES mostly cloudy by
tue eve. Shwrs and tstms ahead of the front Tue ngt and wed,
then the area dries out for the remainder of the fcst period.

The cold front will be driven by a 100-kt h3 jet, so tstms will
be easier to sustain or initiate at ngt. If the timing ends up
slightly slower, a svr outbreak is possible on Wed as CAPE could
soar to 3000 j kg or more. Even with the progged faster timing
however, there could still be svr at any time ahead of the front
with the jet acting on MUCAPE around 1500-2000 j kg. Much cooler
weather will then settle in for thu-sun, with temps averaging
blw climo.

Aviation 20z Sunday through Friday
High pressure will build to the south into Monday morning, then
slide to the southeast of the area into Monday afternoon.VFR
through the TAF period.

Mainly occasional gusts this afternoon to 15-20kt at most terminals.

Jfk could see winds go W for a few hours late this afternoon. Any
gusts abate by early evening, with winds becoming light and variable
throughout by around midnight. SW winds at under 10kt develop by mid-
late Tuesday morning, with sea breezes at coastal terminals
showing up by late Tuesday morning to early Tuesday afternoon.

Outlook for 18z Monday through Friday
Monday afternoon-evening Vfr. G15-20kt possible with sea breezes.

Late Monday night-Tuesday morning MainlyVFR, with low chance
MVFR or lower at mainly long island terminals.

Tuesday afternoon-Wednesday A chance of showers and thunderstorms
with brief periods of MVFR or lower possible. SW winds g15-20kt
possible Tuesday afternoon. Llws possible Tuesday night. W-nw winds
g15-20kt possible Wednesday afternoon.

Wednesday night-Friday Vfr.

Marine
Winds and seas will ramp up on tue, with SCA conditions
developing on all waters. Winds will decrease after a cold
frontal passage, bringing winds the protected waters blw sca
lvls by Wed eve. On the ocean, seas should linger around 5 ft
into Wed ngt. Winds and seas are then progged to remain, in the
absence of any increased swell, blw SCA lvls thru the weekend.

Hydrology
No widespread hydrologic impacts foreseen attm.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... None.

Synopsis... Jmc goodman
near term... Goodman
short term... Goodman
long term... Jmc
aviation... Maloit
marine... Jmc goodman
hydrology... Jmc goodman


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NLNC3 - 8461490 - New London, CT 4 mi38 min N 4.1 G 7 82°F 71°F1016.3 hPa
MTKN6 - 8510560 - Montauk, NY 20 mi38 min 76°F 73°F1017.1 hPa
QPTR1 - 8454049 - Quonset Point, RI 37 mi44 min NW 11 G 17 82°F 73°F1015.7 hPa
NWPR1 - 8452660 - Newport, RI 39 mi38 min NW 8 G 12 81°F 69°F1015.7 hPa
PRUR1 42 mi38 min 83°F 60°F
NAXR1 - Narragansett Bay Reserve, RI 42 mi71 min NNW 5.1 85°F 1015 hPa64°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 42 mi38 min NNW 4.1 G 11 83°F 1015.8 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 44 mi66 min 73°F 73°F3 ft1017.3 hPa (+0.0)69°F
CPTR1 - 8452944 - Conimicut Light, RI 45 mi44 min NW 14 G 17 80°F 74°F1015.3 hPa
PVDR1 46 mi38 min WNW 11 G 16 82°F 1015.4 hPa57°F
NWHC3 - 8465705 - New Haven, CT 47 mi38 min NNW 12 G 19 80°F 78°F1017.3 hPa
FOXR1 - 8454000 - Providence, RI 47 mi38 min NNW 9.9 G 15 83°F 72°F1014.8 hPa

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
Last
24hr
SW8
G12
SW5
G8
SW5
G8
SW2
SW3
W2
SW2
SW3
SW2
W1
W2
W2
NW3
NW1
G4
NW2
G5
N6
G9
N5
G10
NW6
G9
N6
G9
NW5
G9
NW5
G10
NW4
G8
NW3
G11
N6
G11
1 day
ago
S10
S8
G11
S10
G13
S11
G15
SW8
S7
SW9
G12
SW7
SW4
G8
SW3
G6
SW2
SW1
SW3
SW1
W5
NW3
G7
N1
N3
NE3
S5
G8
SW8
G13
SW9
G12
SW10
G16
SW9
2 days
ago
S9
S7
S7
S6
S6
S3
G6
SW3
S1
E3
E4
S2
SE3
SE4
SE5
S8
S9
S10
G13
S7
G10
S7
G10
S9
S10
G13
S12
G15
S8
S8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Groton / New London, Groton / New London Airport, CT2 mi2 hrsWNW 12 G 1910.00 miMostly Cloudy83°F60°F46%1016 hPa
Westerly, Westerly State Airport, RI12 mi63 minno data10.00 miMostly Cloudy84°F59°F43%1016.3 hPa
Montauk, Montauk Airport, NY18 mi62 minW 11 G 16 mi80°F63°F56%1017 hPa

Wind History from GON (wind in knots)
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
Last 24hrSW11SW7SW5SW3SE3SW4W5W5W3CalmCalmW4NW5NW8NW6NW6N10
G17
NW14NW7NW7NW9NW9W12
G19
NW9
1 day agoS7S4S9S7S5S12SW5SW10SW6SW10SW4SW5SW5CalmW7NW6W6NW6S6SW12SW11SW11SW11SW10
2 days agoS8S8S6S5SW4CalmCalmCalmNE3NE5SE3E4SE5SE6SE9SE11SE8S9S10S7S9S14S6S9

Tide / Current Tables for Noank, Mystic River entrance, Connecticut
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Noank
Click for Map
Sun -- 02:44 AM EDT     -0.08 feet Low Tide
Sun -- 04:35 AM EDT     Moonrise
Sun -- 06:02 AM EDT     Sunrise
Sun -- 08:26 AM EDT     2.59 feet High Tide
Sun -- 02:54 PM EDT     0.03 feet Low Tide
Sun -- 07:02 PM EDT     Moonset
Sun -- 07:39 PM EDT     Sunset
Sun -- 08:46 PM EDT     3.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.60-0.10.311.72.22.62.52.21.81.20.70.200.31.11.92.533.12.92.4

Tide / Current Tables for The Race, Long Island Sound, New York Current
   EDIT      (on/off)   Help   One Week of Data
The Race
Click for Map
Sun -- 01:34 AM EDT     -3.88 knots Max Ebb
Sun -- 04:36 AM EDT     Moonrise
Sun -- 04:54 AM EDT     0.00 knots Slack
Sun -- 06:02 AM EDT     Sunrise
Sun -- 07:46 AM EDT     3.29 knots Max Flood
Sun -- 11:02 AM EDT     -0.00 knots Slack
Sun -- 01:58 PM EDT     -3.56 knots Max Ebb
Sun -- 05:09 PM EDT     0.00 knots Slack
Sun -- 07:02 PM EDT     Moonset
Sun -- 07:39 PM EDT     Sunset
Sun -- 08:05 PM EDT     3.48 knots Max Flood
Sun -- 11:21 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.7-3.7-3.8-3-1.60.21.933.32.81.70.1-1.7-3.1-3.6-3.1-1.9-0.31.52.93.53.22.20.7

Weather Map and Satellite Images
       (on/off)   Help
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 (16,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Boston, MA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.