Friday, February15, 2019 L-36.com


Marine Weather and Tides
Norwalk, CT

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:46AMSunset 5:28PM Friday February 15, 2019 10:23 PM EST (03:23 UTC) Moonrise 2:03PMMoonset 4:15AM Illumination 87% Phase: Waxing Gibbous; Moon at 11 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- 836 Pm Est Fri Feb 15 2019
Tonight..W winds around 10 kt, becoming nw after midnight. Seas 1 ft or less. Chance of sprinkles early this evening, then slight chance of showers after midnight.
Sat..NW winds around 10 kt. Seas 1 ft or less.
Sat night..N winds around 10 kt. Seas 1 ft or less.
Sun..N winds 5 to 10 kt, becoming S in the afternoon. Seas 1 ft or less.
Sun night..SE winds around 5 kt, becoming E after midnight. Seas 1 ft or less. Chance of light snow in the evening, then light snow likely after midnight. Vsby 1 to 3 nm.
Mon..N winds 5 to 10 kt. Seas 1 ft or less. Chance of light snow in the morning. Vsby 1 to 3 nm.
Mon night..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue night..NW winds around 5 kt, becoming N after midnight. Seas 1 ft or less. Chance of snow after midnight. Vsby less than 1 nm after midnight.
Wed..E winds 5 to 10 kt. Seas 1 ft or less. Chance of snow. Vsby less than 1 nm.
Wed night..E winds 10 to 15 kt. Seas 1 ft or less. Chance of snow in the evening, then chance of freezing rain and sleet after midnight. Vsby less than 1 nm in the evening.
ANZ300 836 Pm Est Fri Feb 15 2019
Synopsis for the long island waters and new york harbor.. A cold front passes through this evening, followed by high pressure building in through Saturday night. Low pressure passes to the south Sunday night into Monday. High pressure then returns for Tuesday followed by an approaching low pressure system on Wednesday.


7 Day Forecast for Marine Location Near Norwalk, 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 160147
afdokx
area forecast discussion
national weather service new york ny
847 pm est Fri feb 15 2019

Synopsis
A cold front passes through this evening, followed by high
pressure building in through Saturday night. Weak low pressure
passes just south Sunday night and Monday. High pressure builds
Tuesday, followed by another low pressure and frontal system
mid week.

Near term until 6 am Saturday morning
The okx VWP and radar suggest a strengthening lljet ahead of the
cold front. As a result, sct shwrs have been fcst for ern
portions of LI and ct, with a few sprinkles wwd to the hudson
valley. The hrrr and 18z NAM are dry. Areas could trace and not
measure. Otherwise, the fcst is on track, with the front
entering orange county and poised to pass thru the CWA thru
midnight. Dry weather for the overnight hours as high pressure
builds in. Cloud cover and or strong enough winds will hold low
temperatures to above normal levels.

Short term 6 am Saturday morning through Saturday night
Surface high pressure builds into the region with the flow aloft
becoming more zonal. There could still be some lingering mid to high
level clouds to start the day, especially for southern sections of
the forecast area, otherwise it should turn out to be mostly sunny.

Went on the cooler side of the guidance average for high
temperatures, but this still places us near normal for this time of
the year.

High pressure continues to build in for Saturday night with a mostly
clear sky. Conditions are more favorable for radiational cooling
versus tonight, and combined with a colder air mass, lows are
expected to drop into the teens across parts of the lower hudson
valley, interior ct, and the pine barrens region in eastern li. The
rest of the tri-state area should have lows in the 20s.

Long term Sunday through Friday
Upper shortwave moves out of the upper mid west, passing across the
great lakes region, then shears out across the northeast Monday.

Weak ridge, quasizonal flow then prevails behind this shortwave
ahead of western trough that will eventually move across the
midwest, weakening as it does so, but amplifying the ridge ahead of
it across the eastern states. This trough passes Thursday.

At the surface, weak low pressure tracks across the appalachians
Sunday night as high pressure to the northeast yields as mid level
confluence gives way to aforementioned shortwave. Another low
develops just south over the waters, and quickly passes east by
Monday. The position of this low remains in question, and this will
dictate whether or not light snow or flurries mixes with or changes
to light rain along the coast. As the sfc low departs, a lingering
sfc trough lags behind as sheared out shortwave moves across the
northeast. Feel the bulk of the snow or rain snow mix ends, but some
lingering light snow or sprinkles cannot be ruled out Monday. Not
sure if moisture depth will be sufficient for production of ice
crystals, but feel clouds linger, and chance pops are warranted.

Forecast amounts of around one to two inches of snow accumulation,
with support from latest ECMWF run lending some support. If a mix
does indeed occur near the coast, amounts could be lower. Timing
Sunday night.

High pressure builds across the great lakes Monday night and
Tuesday, then next low approaches from the southwest for Tue night-
wed. Based on upper steering flow as mentioned, the southern low
likely passes well to the west, then nw. Meanwhile, high pressure
settles across northern new england, likely resulting in some cold
air damming as another low develops along the mid atlantic. Still a
lot of details to iron out here, but snow is possible late Tuesday
night Wednesday, then a changeover to a wintry mix to rain would
likely occur Wed night-thu before ending. Dry Friday behind the
system.

Temperatures through the period will not vary much. In general,
temperatures should remain slightly below normal, but as previous
forecast stated, arctic air is not anticipated.

Aviation 02z Saturday through Wednesday
A cold front moves through the terminals from around 02z west
to around 07z east. There may be a few scattered showers,
however, no impact to ceilings or visibilities are expected.VFR
through the forecast period.

S to SW wind around 10 kt with shift to the W with the approach
of the cold front, and then to the NW with the cold frontal
passage. Winds may be around 310 true for several hours from
around 04z to 12z, with occasional gusts up to 20 kt at the nyc
metro terminals. During Saturday winds will be more from the nw
to N around 10 kt.

Outlook for 00z Sunday through Wednesday
Saturday night-Sunday Vfr.

Sunday night-Monday Chance of snow with MVFR or lower conditions
possible.

Tuesday Vfr.

Wednesday Chance of snow with MVFR or lower conditions
possible.

Marine
Sca remains unchanged on the ocean. The non-ocean waters
should see gusts remaining below 25 kt tngt, with gusts dropping
blw 25 kt on the ocean by around midnight. Seas will however
remain at advisory levels through the night and into Saturday
morning. Sub-advisory conditions then prevail Saturday
afternoon and night.

Winds will be rather tranquil ahead of weak low pressure Sunday-
Sunday night. Behind the low, winds shift around to the N NW and
should increase late Monday-Monday night. As such, ocean seas build
slightly before subsiding as high pressure builds and winds lighten
again.

Winds should increase ahead of the next low and frontal boundary
Wednesday.

Hydrology
There are no hydrologic concerns through the middle of next
week.

Equipment
Nyc central park winds are out of service until further notice.

Loss of data is due to a severed cable. Parts are on order.

Nyc NOAA weather radio station kwo35 (162.55 mhz) will remain off
the air for an extended period of time.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... Small craft advisory until 11 am est Saturday for anz350-353-
355.

Synopsis... Jc pw
near term... Jmc jc
short term... Jc
long term... Pw
aviation... Met
marine... Jmc jc pw
hydrology... Jc pw
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BRHC3 - 8467150 - Bridgeport, CT 14 mi41 min WNW 1.9 G 5.1 46°F 36°F1003.6 hPa
KPTN6 - 8516945 - Kings Point, NY 27 mi35 min S 2.9 G 4.1 47°F 35°F1005.4 hPa
NWHC3 - 8465705 - New Haven, CT 30 mi35 min SSW 1.9 G 2.9 44°F 38°F1004.2 hPa
BATN6 - 8518750 - The Battery, NY 42 mi35 min 53°F 38°F1004.6 hPa
ROBN4 - 8530973 - Robins Reef, NJ 46 mi35 min W 12 G 17 56°F 1005 hPa

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bridgeport, Sikorsky Memorial Airport, CT16 mi31 minSW 310.00 miA Few Clouds45°F39°F83%1003.9 hPa
White Plains - Westchester County Airport, NY16 mi87 minNW 310.00 miMostly Cloudy43°F37°F82%1004.2 hPa
Danbury, Danbury Municipal Airport, CT19 mi30 minN 010.00 miOvercast37°F34°F89%1004.4 hPa

Wind History from HPN (wind in knots)
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Last 24hrS3E3SE5SE4E6SE6E6E6SE3SE10SE7S8S5S4S6S8S6SE5SE5SE4SE3CalmNW3W10
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2 days agoE11
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Tide / Current Tables for South Norwalk, Connecticut
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South Norwalk
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Fri -- 12:50 AM EST     0.64 feet Low Tide
Fri -- 03:15 AM EST     Moonset
Fri -- 06:48 AM EST     Sunrise
Fri -- 07:00 AM EST     7.26 feet High Tide
Fri -- 01:03 PM EST     Moonrise
Fri -- 01:38 PM EST     0.13 feet Low Tide
Fri -- 05:27 PM EST     Sunset
Fri -- 07:38 PM EST     6.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.61.22.54.25.76.87.36.85.642.51.20.30.212.445.46.36.45.74.42.9

Tide / Current Tables for Stamford, Connecticut (2)
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Stamford
Click for Map
Fri -- 12:43 AM EST     0.66 feet Low Tide
Fri -- 03:15 AM EST     Moonset
Fri -- 06:48 AM EST     Sunrise
Fri -- 06:54 AM EST     7.40 feet High Tide
Fri -- 01:04 PM EST     Moonrise
Fri -- 01:31 PM EST     0.13 feet Low Tide
Fri -- 05:28 PM EST     Sunset
Fri -- 07:32 PM EST     6.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.71.42.84.4677.46.95.63.92.41.10.30.21.12.64.25.66.46.55.74.32.8

Weather Map and Satellite Images
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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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Wind Forecast for New York City/Upton, NY (22,6,7,8)
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Ground Weather Radar Station Upton, NY
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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.