Friday, November15, 2019 L-36.com


Marine Weather and Tides
Norwalk, CT

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:39AMSunset 4:36PM Friday November 15, 2019 7:07 PM EST (00:07 UTC) Moonrise 8:07PMMoonset 10:36AM Illumination 85% Phase: Waning Gibbous; Moon at 18 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- 631 Pm Est Fri Nov 15 2019
.small craft advisory in effect from midnight est tonight through Sunday afternoon...
Tonight..N winds 10 to 15 kt with occasional gusts up to 25 kt, increasing to 15 to 20 kt with gusts up to 25 kt late. Seas 1 ft or less, then around 2 ft after midnight.
Sat..NE winds around 15 kt with gusts up to 25 kt. Seas around 2 ft.
Sat night..NE winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft.
Sun..NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
Sun night..NE winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Chance of showers in the evening, then showers likely after midnight. Vsby 1 to 3 nm in the evening.
Mon..N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Showers likely, mainly in the morning.
Mon night..N winds 10 to 15 kt with gusts up to 20 kt, becoming nw 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Chance of showers.
Tue..W winds 5 to 10 kt. Seas 1 ft or less.
Tue night..NW winds 5 to 10 kt. Seas 1 ft or less.
Wed..NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 ft or less.
Wed night..NW winds 10 to 15 kt. Seas 1 ft or less.
ANZ300 631 Pm Est Fri Nov 15 2019
Synopsis for the long island waters and new york harbor.. A cold front will move across the waters tonight, followed by strong high pressure building in from southeast canada and settling into northern new england Saturday into Saturday night. The high will retreat into the canadian maritimes Sunday into Monday as low pressure approaches and passes south and east of long island. Another low may pass well south and east of long island mid-week.


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 152345
afdokx
area forecast discussion
national weather service new york ny
645 pm est Fri nov 15 2019

Synopsis
A cold front will move across tonight, followed by strong high
pressure building in from southeast canada and settling into
northern new england Saturday into Saturday night. The high
will retreat into the canadian maritimes Sunday into Monday as
low pressure approaches and passes south and east of long island.

This low pressure system could bring rainfall late Sunday into
Monday before ejecting to the northeast. A cold dry airmass
will then remain in place through mid week.

Near term until 6 am Saturday morning
The cold front remains just northwest of the area as of 6pm.

Temperatures have dropped off considerably early this evening
in some outlying areas where winds have become light. Adjusted
temperatures and dewpoints to better account for the current
trends, otherwise the forecast overall remains on track.

Cold front moves across this evening, devoid of moisture, with
winds behind it going from west to north. Gusty winds along
coast will keep boundary layer relatively higher for
temperatures, but still some significant cold air advection will
be occurring behind the cold front. 850mb temperatures decrease
from around 2-4 degrees c initially to -2 to -7 degrees c by
early Saturday morning. The interior is expected to be the
coldest where winds will be relatively lighter. Sfc temperature
for lows were 2 3 mav and 1 3 met mos. Ranging from the upper
teens to around 30. There will be some cirrus for the first half
of tonight.

The pressure gradient between the high to the north and low
pressure developing off the southeast us coast will remain quite
steep, resulting in gusty northerly flow.

Short term 6 am Saturday morning through Saturday night
Mid levels will be a split flow between some weak ridging moving
in from the west and a cutoff low associated with the surface
low developing off the southeast us coast.

High pressure builds in with its center staying well north and
west of the region Saturday. The pressure gradient between this
high and low pressure developing off the southeast us coast will
remain quite steep keeping gusty northerly flow. The flow
becomes more northeasterly late in the day and into Saturday
night as the center of the high moves into northern new england
and the low further develops and deepens off the southeast us
coast.

The airmass will be very cold for Saturday and Saturday with the
strong high to the north controlling the local weather. This
will bring mostly sunny conditions during the day and much of
Saturday night will be mostly clear. Highs on Saturday were
from the mav MOS which were performing a little better with
recent highs. The highs forecast range from the mid to upper
30s. For Saturday night, despite the gusty winds, will bring a
slightly colder night compared to the previous night, with lows
in the teens to near 30. Clouds increase late Sunday night well
ahead of the low.

Long term Sunday through Friday
Mid-level trough axis pivots through the great lakes region
throughout the day Sunday setting up a southwest to northeast upper
level flow along the east coast. At the same time an offshore low
near north carolina deepens and rides the flow north. As this system
nears our CWA the pressure gradient between the low and the 1030 mb
high over maine results in windy conditions during the day. Rain
chances increase Sunday night into Monday morning. Mix precip
with the possibility of trace freezing rain could be possible in
this environment as model soundings near orange county show a
slight warm layer between 900-750 mb that could allow for some
melting then refreeze below. Though by the late morning the
vertical profile changing to all rain. Steady moderate rain is
expected throughout the day Monday on the back side of the
ejecting low. Rain totals should be between 1-2 inches
throughout the whole event.

The aforementioned trough axis pushes through new england Tuesday
into Wednesday allowing for a cold airmass to build back into the
area. This trough may have enough upper level dynamics to produce
precipitation for our northern counties along the lower hudson
valley. Though only a slight chance, any perception would most
likely be light snow with little to no accumulation. Areas not
impacted by rain will see temperatures reach the mid 40s with lows
in the upper 30s.

The next trough moves through the great lakes deepening a low over
western quebec. Locally this drives warm front through the forecast
area Thursday ahead of the next batch of rainfall Friday. Long range
guidance remains variable around the specific timing the next system
but this will continue to be monitored for changes and subsequent
updates.

Aviation 00z Saturday through Wednesday
A cold front moves through tonight with high pressure building
in from the northwest into Saturday.

Vfr through the TAF period.

Winds will veer to the NW this evening, becoming northerly after
midnight. At the same time, speeds increase to around 15 kt
overnight, with gusts 25 to 30 kt after 08z, especially at
coastal terminals. NE winds remain gusty into Saturday afternoon
before subsiding by evening.

Outlook for 00z Sunday through Wednesday
Saturday night Vfr. NE winds around 15 kt.

Sunday-Monday MVFR, with ifr conditions possible. Chance of
rain, with a chance of freezing rain well inland Sunday night
into early Monday morning. NE winds gust 15-20 kt.

Tuesday MVFR possible with a slight chance of rain.

Wednesday Vfr.

Marine
Sub-sca conditions continue on the waters until after a cold
front passage late tonight. That is when the pressure gradient
will become more steep and winds will increase. Gales will
become likely on the ocean and SCA wind gusts for the non-ocean
waters will become likely. Expect these conditions to pretty
much continue through Sunday as the pressure gradient further
tightens between high pressure to the north and low pressure to
the south. There may be a little bit of a lull in the gales
Saturday afternoon into Saturday night before returning and
increasing in speed for late Saturday night into Sunday. The
ocean seas build to 4-6 ft tonight and continue to build to
eventually 8-12 ft by Sunday with the northeasterly fetch
developing.

Coastal low nears our marine zones late Sunday into Monday. As a
result winds out of the northeast increase to 25-30 kts with gusts
35-40 kts offshore and 20-25 kts along the long island sound. Waves
offshore increase as well nearing 10 feet. Winds shift out of the
north and west Tuesday and waves offshore come down to around 5-7
feet. Winds remain out of the northwest through the period and waves
relax to 4-5 feet.

Fire weather
Expecting weather conditions conducive for fire growth and
spread on Saturday with the combination of northerly winds
around 10 to 20 mph with gusts 25 to 30 mph and low level
relative humidity being less than 30 percent.

Hydrology
No hydrologic impacts are anticipated through the forecast
period.

Tides coastal flooding
The potential for widespread minor to locally moderate coastal
impacts during the Sunday and Monday late morning early afternoon
high tides is increasing along the south shore bays of LI and the
atlantic ocean beachfront. Elsewhere the potential for scattered
minor to isolated moderate impacts is increasing for vulnerable
locales along lower ny harbor, peconic and gardiners bay, and north
shore of LI locations.

This is due to astronomical tides increasing ahead of an approaching
full moon, prolonged E NE gales Saturday afternoon through Sunday
night, accompanied by long period easterly swells of 12 to 15 ft.

Elevated water levels with 8 to 12 ft breakers along the atlantic
ocean beach front will result in significant beach erosion and
flooding, with areas of dune erosion and localized washovers likely
during the times of high tide Sunday into Monday. The north shore of
the south fork, orient point, and north shore beachfront will likely
have beach erosion and localized wave splash over flooding issues
due to rough waves as well.

Equipment
Nyc NOAA weather radio station kwo35 (162.55 mhz) is operating
at reduced power until further notice.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... Small craft advisory from midnight tonight to 6 pm est Sunday
for anz330-335-338-340-345.

Gale warning from midnight tonight to 6 pm est Sunday for
anz350-353-355.

Synopsis... Jm
near term... Feb jm
short term... Jm
long term... Dj 16
aviation... Feb
marine... Dj 16 jm
fire weather...

hydrology... Dj 16 jm
tides coastal flooding...

equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44040 - Western Long Island Sound 13 mi107 min WSW 12 G 16 52°F 27°F
BRHC3 - 8467150 - Bridgeport, CT 14 mi73 min WNW 1.9 G 4.1 48°F 50°F1019.7 hPa
44022 - Execution Rocks 22 mi82 min WSW 9.7 G 12 51°F 32°F30°F
KPTN6 - 8516945 - Kings Point, NY 27 mi67 min WNW 8.9 G 11 50°F 53°F1021.5 hPa (+1.0)
NWHC3 - 8465705 - New Haven, CT 30 mi67 min W 2.9 G 2.9 47°F 48°F1019.6 hPa (+1.0)
44069 33 mi52 min W 7.8 G 7.8 45°F 43°F37°F
BATN6 - 8518750 - The Battery, NY 42 mi67 min 49°F 53°F1021.1 hPa (+1.0)
ROBN4 - 8530973 - Robins Reef, NJ 46 mi67 min WSW 8.9 G 11 49°F 1021 hPa (+1.0)

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bridgeport, Sikorsky Memorial Airport, CT16 mi75 minW 610.00 miFair47°F30°F52%1020.2 hPa
White Plains - Westchester County Airport, NY16 mi71 minW 410.00 miFair45°F19°F37%1020.8 hPa
Danbury, Danbury Municipal Airport, CT19 mi74 minSSW 310.00 miFair35°F23°F61%1021.1 hPa

Link to 5 minute data for KHPN

Wind History from HPN (wind in knots)
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Last 24hrW3CalmW3W4W3W3W3W4NW4W4W4NW3Calm3SW7W73SW5W9NW9W4CalmW4Calm
1 day agoCalmCalmCalmCalmCalmCalmNE5E4NE5NE3NE3CalmNW5NW3CalmS5S7S4S8S6S3CalmCalmW3
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Tide / Current Tables for South Norwalk, Connecticut
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South Norwalk
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Fri -- 12:34 AM EST     7.09 feet High Tide
Fri -- 06:41 AM EST     Sunrise
Fri -- 06:41 AM EST     0.57 feet Low Tide
Fri -- 09:36 AM EST     Moonset
Fri -- 12:45 PM EST     7.99 feet High Tide
Fri -- 04:34 PM EST     Sunset
Fri -- 07:07 PM EST     Moonrise
Fri -- 07:19 PM EST     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.976.14.631.60.80.61.434.96.67.787.25.73.820.700.21.33.14.9

Tide / Current Tables for Stamford, Connecticut
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Stamford
Click for Map
Fri -- 12:28 AM EST     7.29 feet High Tide
Fri -- 06:31 AM EST     0.40 feet Low Tide
Fri -- 06:41 AM EST     Sunrise
Fri -- 09:36 AM EST     Moonset
Fri -- 12:39 PM EST     8.25 feet High Tide
Fri -- 04:35 PM EST     Sunset
Fri -- 07:08 PM EST     Moonrise
Fri -- 07:09 PM EST     -0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.27.26.34.93.11.50.50.51.32.84.76.788.27.45.93.91.90.4-0.20.11.12.84.8

Weather Map
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wmap_A
GEOS 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.
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Wind Forecast for New York City/Upton, NY (19,4,5,8)
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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.