Monday, August21, 2017 L-36.com


Marine Weather and Tides
Mamaroneck, NY

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 6:10AMSunset 7:45PM Monday August 21, 2017 11:52 AM EDT (15:52 UTC) Moonrise 5:52AMMoonset 7:50PM Illumination 0% Phase: New Moon; Moon at 29 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- 650 Am Edt Mon Aug 21 2017
Today..SW winds around 5 kt, increasing to 5 to 10 kt this afternoon. Seas 1 ft or less.
Tonight..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and tstms after midnight.
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, then around 2 ft in the afternoon.
Tue night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Chance of showers and tstms.
Wed..W winds around 10 kt. Seas 1 ft or less.
Wed night..N winds 5 to 10 kt. Seas 1 ft or less.
Thu..NW winds 5 to 10 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..W winds around 5 kt, becoming N after midnight. Seas 1 ft or less. Winds and seas higher in and near tstms.
ANZ300 650 Am Edt Mon Aug 21 2017
Synopsis for the long island waters and new york harbor.. High pressure building into the region through this morning will settle offshore this afternoon. High pressure moves farther offshore tonight into Tuesday. Meanwhile, a cold front will be approaching. The front will pass through on Wednesday, followed by high pressure later this week.

7 Day Forecast for Marine Location Near Mamaroneck village, NY
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location: 40.93, -73.73     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 211502
afdokx
area forecast discussion
national weather service new york ny
1102 am edt Mon aug 21 2017

Synopsis
High pressure over the region moves offshore today and tonight.

A cold front approaches from the west Tuesday and passes through
Tuesday night into Wednesday morning. High pressure then builds
in thereafter through the end of the week with a much drier and
cooler airmass.

Near term until 6 pm this evening
Forecast still mainly on track with just slight adjustments to
temperatures and dewpoints to better match observed trends.

Weak quasi-zonal flow aloft with main upper level jet stream
well northwest of the region.

Surface high pressure moves across the region this morning and
offshore this afternoon. Expecting a mainly dry day with just a
slight chance of showers and thunderstorms for far western
orange county late this afternoon. 850mb temperatures forecast
to reach near 15-16 degrees c. Surface temperatures forecast to
reach several degrees warmer than yesterday. Mid 80s to near 90
degrees f for much of the region with mostly sunny conditions
for most locations.

For sky cover, the western edge of a cirrus shield should be
east of the forks region and SE ct by 200 pm. Another area of
translucent cirrus moving through northern pa would appear to
shift through primarily north of the city in the timeframe of
the partial solar eclipse, which runs about 120 pm to 400 pm in
nyc with a peak at 244 pm. Cirrus may however develop and pass
through the city and long island during this period as well,
especially if any convection pops up to our west. Hrrr
indicates this convective potential, but may happen too late to
be of much significance. Finally, some cumulus development along
sea breezes this afternoon may cause some obstruction within
about 10 miles of south-facing coasts. Thinking is that any
cumulus would be no more that scattered in nature for most spots
that see it.

Like previous forecast, a look at the hrrrx conveys a slight
decrease during maximum obscuration of Sun during eclipse, so
adjusted temperature a degree downward at 19z (3pm local time).

There is a low risk of rip currents today, becoming moderate
late today at atlantic beaches.

Short term 6 pm this evening through 6 pm Tuesday
Rest of the forecast shows high pressure moving farther offshore
and a cold front gradually approaching from the west. Upper
levels convey an upper level trough with its upper level low based
in ontario approaching the region. Continually more warm and
humid conditions are expected. Forecast has warmer temperatures
Tuesday, getting hot and humid for quite a few locations. Could
see heat indices up to 100 degrees in and around nyc.

Precip forecast remains near or below 30 percent for showers and
thunderstorms. Not much forcing but increasing instability and
possible lee trough forming Tuesday could provide focus for
convergence. Models are pretty minimal with forecast rainfall
amounts overall tonight through Tuesday. Weak trough evident in
lower levels late tonight into early Tuesday will lead to pops
more in low end chance for showers and thunderstorms and then
expecting much of Tuesday to be dry except for interior
locations which will have relatively higher chances for showers
and thunderstorms. These locations will be closer to lee trough
as well.

Long term Tuesday night through Sunday
A cold front approaches the region Tuesday night and pushes across
the forecast area on Wednesday. Expect cloud cover to increase and
showers and thunderstorms to develop and move across the region
through this time frame. By Wednesday evening, skies will begin to
clear and a much cooler airmass will be arriving.

Canadian high pressure builds into the region Thursday through the
weekend, providing dry and sunny conditions. Temperatures will
remain below normal as highs only reach the 70s to near 80 each day.

The dry and cooler conditions are expected to continue into
Monday.

Aviation 14z Monday through Friday
Vfr through the TAF period as high pressure remains in control.

Isolated shra tsra possible late evening for nyc nj and nw
terminals.

Sw winds will increase this morning into the afternoon, with
southerly sea breeze development at coastal terminals. Gusts of
15 to 20 kt likely this afternoon. SW winds diminish to less
than 10 kt this evening.

Ny metro enhanced aviation weather support...

detailed information, including hourly TAF wind component forecasts,
can be found at: http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KPTN6 - 8516945 - Kings Point, NY 8 mi53 min WNW 6 G 6 79°F 74°F1022.3 hPa (+0.0)
BATN6 - 8518750 - The Battery, NY 22 mi53 min 79°F 75°F1022.5 hPa (-0.0)
ROBN4 - 8530973 - Robins Reef, NJ 26 mi53 min W 7 G 12 1023.2 hPa (-0.3)
MHRN6 30 mi53 min WSW 6 G 12
BGNN4 - 8519483 - Bergen Point West Reach, NJ 30 mi53 min 82°F 76°F1022.7 hPa (-0.0)
BRHC3 - 8467150 - Bridgeport, CT 34 mi53 min SSW 5.1 G 7 77°F 74°F1021.7 hPa (+0.0)
SDHN4 - 8531680 - Sandy Hook, NJ 35 mi53 min WNW 5.1 G 6 78°F 77°F1022.1 hPa (+0.0)
44069 38 mi53 min WSW 5.8 G 7.8 78°F 79°F70°F
44065 - Entrance to New York Harbor 39 mi63 min W 3.9 G 5.8 75°F 76°F2 ft1022.3 hPa (+0.0)66°F

Wind History for Kings Point, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
White Plains - Westchester County Airport, NY10 mi57 minVar 610.00 miFair80°F63°F56%1022.2 hPa
New York, La Guardia Airport, NY13 mi62 minW 710.00 miMostly Cloudy84°F63°F49%1022.2 hPa
New York City, Central Park, NY16 mi62 minWSW 310.00 miFair81°F64°F58%1022.4 hPa
Teterboro, Teterboro Airport, NJ18 mi62 minW 610.00 miFair83°F63°F51%1022 hPa
New York, Kennedy International Airport, NY19 mi62 minS 710.00 miMostly Cloudy80°F70°F71%1022.9 hPa
Farmingdale - Republic Airport, NY22 mi60 minWSW 710.00 miFair81°F62°F53%1022.5 hPa

Wind History from HPN (wind in knots)
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Last 24hrW8NW8NW10NW10W8NW7NW6W5W3W3CalmNW3NW3NW3W3NW4NW3NW4NW4NW3W6W636
1 day agoNW6NW5W7
G15
W6W6W7W4W3W4W3W4W3NW4W6W6W10W8W13W9
G16
NW11NW9NW11NW8W10
2 days ago4S5S6S84S7S4S7S6S43W5CalmS3W5W6W5W5W5W5W6NW6NW6Calm

Tide / Current Tables for Mamaroneck, New York
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Mamaroneck
Click for Map
Mon -- 05:52 AM EDT     Moonrise
Mon -- 06:06 AM EDT     -0.86 feet Low Tide
Mon -- 06:11 AM EDT     Sunrise
Mon -- 12:04 PM EDT     8.24 feet High Tide
Mon -- 02:31 PM EDT     New Moon
Mon -- 06:23 PM EDT     -0.55 feet Low Tide
Mon -- 07:44 PM EDT     Sunset
Mon -- 07:49 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.57.55.22.81-0.2-0.8-0.21.94.76.87.98.27.863.51.50.3-0.5-0.31.44.16.68

Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
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Throg's Neck
Click for Map
Mon -- 02:58 AM EDT     0.00 knots Slack
Mon -- 05:44 AM EDT     1.13 knots Max Flood
Mon -- 05:52 AM EDT     Moonrise
Mon -- 06:11 AM EDT     Sunrise
Mon -- 09:00 AM EDT     -0.00 knots Slack
Mon -- 12:04 PM EDT     -0.88 knots Max Ebb
Mon -- 02:31 PM EDT     New Moon
Mon -- 03:23 PM EDT     0.00 knots Slack
Mon -- 06:09 PM EDT     1.15 knots Max Flood
Mon -- 07:44 PM EDT     Sunset
Mon -- 07:49 PM EDT     Moonset
Mon -- 09:29 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-0.6-0.200.40.91.10.70.30-0.3-0.7-0.9-0.7-0.4-0.10.20.71.10.90.50.1-0.2-0.5

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 (11,2,3,4)
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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.