Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Norwalk, 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 6:07AMSunset 7:45PM Sunday August 20, 2017 5:01 PM EDT (21:01 UTC) Moonrise 4:42AMMoonset 7:08PM 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
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ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 357 Pm Edt Sun Aug 20 2017
Tonight..NW winds around 5 kt. Seas 1 ft or less.
Mon..W winds around 5 kt, becoming sw in the afternoon. Seas 1 ft or less.
Mon night..SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 1 ft or less.
Tue..SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 ft or less in the morning, then 1 to 2 ft.
Tue night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to 2 ft. Chance of showers and tstms.
Wed..W winds around 10 kt. Seas around 1 ft. Chance of showers and tstms in the morning.
Wed night..NW winds 5 to 10 kt. Seas 1 ft or less.
Thu..NW winds around 5 kt. Seas 1 ft or less.
Thu night..N winds 5 to 10 kt. Seas 1 ft or less.
Fri..NE winds 5 to 10 kt. Seas 1 ft or less.
Fri night..N winds 5 to 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms.
ANZ300 357 Pm Edt Sun Aug 20 2017
Synopsis for the long island waters and new york harbor.. 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, and pass through by early Tuesday. A cold front will pass through on Wednesday, followed by high pressure later this week.

7 Day Forecast for Marine Location Near Norwalk city, CT
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location: 41.1, -73.42     debug


Area Discussion for - New York City/Upton, NY
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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
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BRHC3 - 8467150 - Bridgeport, CT 14 mi50 min NNW 5.1 G 8.9 82°F 75°F1016.8 hPa
KPTN6 - 8516945 - Kings Point, NY 27 mi44 min N 8 G 9.9 79°F 75°F1017.8 hPa
NWHC3 - 8465705 - New Haven, CT 30 mi44 min NNW 12 G 19 80°F 78°F1017.3 hPa
44069 33 mi62 min WNW 7.8 G 14 79°F 80°F64°F
BATN6 - 8518750 - The Battery, NY 42 mi44 min 82°F 76°F1017.9 hPa
ROBN4 - 8530973 - Robins Reef, NJ 46 mi44 min WNW 11 G 15 1018.6 hPa

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bridgeport, Sikorsky Memorial Airport, CT16 mi70 minNNW 810.00 miPartly Cloudy82°F57°F44%1017.1 hPa
White Plains - Westchester County Airport, NY16 mi66 minWNW 810.00 miPartly Cloudy81°F57°F45%1017.4 hPa
Danbury, Danbury Municipal Airport, CT19 mi69 minW 710.00 miPartly Cloudy80°F57°F45%1018 hPa

Wind History from HPN (wind in knots)
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Last 24hrW7W4W3W4W3W4W3NW4W6W6W10W8W13W9
G16
NW11NW9NW11NW8W10W8NW8NW10NW10W8
1 day agoS7S4S7S6S43W5CalmS3W5W6W5W5W5W5W6NW6NW6CalmNW6NW5W7
G15
W6W6
2 days agoSE8SE8S6S4S3SE3SE4E5E4SE4SE4E4SE5S6SE6SE5SE5SE364S5S6S84

Tide / Current Tables for South Norwalk, Connecticut
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South Norwalk
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Sun -- 04:42 AM EDT     Moonrise
Sun -- 04:53 AM EDT     -0.42 feet Low Tide
Sun -- 06:08 AM EDT     Sunrise
Sun -- 10:49 AM EDT     7.85 feet High Tide
Sun -- 05:07 PM EDT     -0.18 feet Low Tide
Sun -- 07:07 PM EDT     Moonset
Sun -- 07:44 PM EDT     Sunset
Sun -- 11:10 PM EDT     8.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
75.23.31.40-0.40.32467.47.87.15.73.820.5-0.20.31.83.967.88.6

Tide / Current Tables for Stamford, Connecticut
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Stamford
Click for Map
Sun -- 04:42 AM EDT     Moonrise
Sun -- 04:46 AM EDT     -0.44 feet Low Tide
Sun -- 06:09 AM EDT     Sunrise
Sun -- 10:43 AM EDT     8.00 feet High Tide
Sun -- 05:00 PM EDT     -0.18 feet Low Tide
Sun -- 07:08 PM EDT     Moonset
Sun -- 07:45 PM EDT     Sunset
Sun -- 11:04 PM EDT     8.74 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
75.13.11.2-0.1-0.40.52.24.36.37.787.15.63.71.80.4-0.20.42.14.26.488.7

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 (17,4,5,8)
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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.