Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Dobbs Ferry, 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 6:49AMSunset 4:33PM Tuesday November 21, 2017 5:06 AM EST (10:06 UTC) Moonrise 10:21AMMoonset 8:12PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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- 320 Am Est Tue Nov 21 2017
.small craft advisory in effect through this evening...
Today..SW winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft.
Tonight..SW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Rain likely after midnight.
Wed..W winds 10 to 15 kt, becoming nw with gusts up to 25 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon. Chance of rain in the morning.
Wed night..N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft.
Thu..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less.
Thu night..W winds 5 to 10 kt. Seas 1 ft or less.
Fri..W winds 5 to 10 kt. Seas 1 ft or less.
Fri night..SW winds 5 to 10 kt. Seas 1 ft or less.
Sat..SW winds 10 to 15 kt. Seas 1 ft or less, then around 2 ft in the afternoon.
Sat night..W winds around 10 kt. Seas around 2 ft.
ANZ300 320 Am Est Tue Nov 21 2017
Synopsis for the long island waters and new york harbor.. A cold front passes through early Wednesday followed by high pressure. A warm front will lift through on Saturday, followed by a cold front Saturday night.

7 Day Forecast for Marine Location Near Dobbs Ferry, NY
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location: 41.02, -73.88     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 210906
afdokx
area forecast discussion
national weather service new york ny
406 am est Tue nov 21 2017

Synopsis
A cold front approaches from the west today and passes through
early Wednesday followed by high pressure. A warm front moves
north Saturday followed by a cold front Saturday night. High
pressure builds to the west Sunday and Monday.

Near term until 6 pm this evening
Sunny and "mild" - at least relatively so.

Some thin cirrus - but "basically" sunny. Temps top out at or
near 60 most areas with a breezy ssw flow. Last 60 degree day of
the year?? Probably not.

Short term 6 pm this evening through 6 pm Wednesday
Rather impressive shortwave over the gulf of mexico with
convection firing in the right rear quadrant of 100 kt jet
streak. This convection lifts rapidly across fl to off the
carolina coast this evening. Jet then strengthens to 120 kt
ahead of the sharpening of the northern stream shortwave.

Nwp, including the gefs, SREF and hrefv2 (replaced spc's sseo)
ensembles all support rain moving into nyc long island and s.

Ct before sunrise. Have raise pops significantly from previous
forecast due the observed dynamics and the consensus of the
latest nwp.

Does not look like a very nice morning rush. Rain may come down
hard for around 7-8 am.

Rain will move east of the region by noon though as colder air
rushes in Wednesday afternoon with gusty NW winds and clearing
skies.

Long term Wednesday night through Monday
Long range models are in good agreement through fri, with
noticeable differences starting Sat as a shortwave approaching
from the northern rockies interacts with a canadian vortex near
hudson bay. This is leading to timing and amplitude differences
with the 00z ec now developing a cutoff low over new england sun
night. GFS remains open.

As such, no big changes to the previous forecast through the
end of the week, but have cut back on the extent of pops
associated with the warm FROPA on Sat as models have trended
slower and drier. Southern stream shortwave and developing sfc
low passes well S and E of the area Sat sat night as a cold
front moves through the local area. Not much moisture for the
front to work with have kept the forecast dry Sat night.

Since the upper pattern is a bit uncertain next weekend, this
offshore low will need to be watched. If the full latitude
trough amplifies more, the low would shift to the west and could
result in potential impacts.

A secondary cold front with a reinforcing shot of cold air
could bring a few showers to the area on Sun with gusty winds
developing in its wake. Vigorous shortwave in the GFS which ec
is weaker. Schc to low chc pops with this feature. Soundings
mostly support rain at this time, although could get some wet
snowflakes Sun morning N and W of nyc.

Daytime temperatures are expected to be below normal through
the period, except on Sat in the warm sector. Overnight lows
also below normal except Fri Sat nights where they'll be near
normal.

Aviation 09z Tuesday through Saturday
High pressure slides further of the mid-atlantic coast today. A cold
front approaches from the west this evening.

Vfr through the TAF period.

Wsw-sw winds diminish early this morning, and back to the ssw-sw.

Winds increase after daybreak, becoming gusty by late this morning,
with gusts up to around 25kt likely. Isolated peak gusts to around
30kt are possible at eastern terminals. Gusts abate late this
afternoon early this evening.

Ny metro enhanced aviation weather support...

detailed information... Including hourly TAF wind component fcsts can
be found at: http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44022 - Execution Rocks 12 mi51 min SSW 12 G 16 47°F 32°F
KPTN6 - 8516945 - Kings Point, NY 16 mi48 min W 13 G 16 45°F 50°F1020.8 hPa
44040 - Western Long Island Sound 17 mi77 min SW 16 G 19 47°F 1 ft34°F
BATN6 - 8518750 - The Battery, NY 23 mi48 min 42°F 51°F1020.9 hPa
ROBN4 - 8530973 - Robins Reef, NJ 27 mi48 min WSW 14 G 17 42°F 1020.7 hPa
MHRN6 30 mi48 min SSW 6 G 8
BGNN4 - 8519483 - Bergen Point West Reach, NJ 30 mi48 min 38°F 50°F1020.1 hPa
SDHN4 - 8531680 - Sandy Hook, NJ 39 mi48 min SW 17 G 19 43°F 46°F1020.9 hPa
BRHC3 - 8467150 - Bridgeport, CT 39 mi54 min WSW 4.1 G 5.1 41°F 51°F1019.6 hPa
44065 - Entrance to New York Harbor 46 mi76 min WSW 23 G 27 50°F 58°F4 ft1019.6 hPa (+0.0)36°F
44069 48 mi66 min WSW 16 G 19 47°F 46°F36°F

Wind History for Kings Point, NY
(wind in knots)    EDIT      (on/off)   Help
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Last
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NW13
G16
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NW15
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NW14
G18
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G17
NW15
G20
NW15
G20
NW15
G21
NW18
G23
NW13
NW13
G18
NW15
G19
W11
G18
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G17
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G12
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SW16
G22
SW16
G23
W25
G31
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G32
NW20
G31
N26
N24
G29
N24
G30
N23
G29
N26
G36
N22
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G32
N17
G23
N15
G19
N11
G17
N14
G18
N12
G15
NW11
G15
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G18
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NW13
G17
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2 days
ago
S4
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W5
SW11
G14
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G22
SW16
SW20
SW20
G25
SW17
G21
SW12
SW9
SW12
G17
SW15
SW10
SW12
SW19
SW14
G18
SW14
SW14
SW16
SW16

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
White Plains - Westchester County Airport, NY9 mi10 minN 010.00 miFair37°F24°F59%1019.6 hPa
Teterboro, Teterboro Airport, NJ14 mi15 minSSW 410.00 miFair36°F27°F70%1019.6 hPa
New York City, Central Park, NY17 mi15 minVar 510.00 miFair42°F28°F60%1019.5 hPa
New York, La Guardia Airport, NY17 mi15 minSW 810.00 miMostly Cloudy43°F30°F60%1019.6 hPa
Caldwell, Essex County Airport, NJ23 mi13 minN 010.00 miFair35°F26°F70%1020.5 hPa

Wind History from HPN (wind in knots)
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Last 24hrW6W6W10W10
G17
W10
G20
W12
G16
W12
G19
NW16
G22
NW18W15
G26
W11
G19
W7
G17
W9W7SW9W6SW6W7W834W3W4Calm
1 day agoS9
G14
S9
G18
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G16
W10
G19
W19
G26
NW34
G40
NW26
G35
NW24
G33
NW21
G36
NW23
G31
NW22
G29
NW18
G24
NW24
G34
W13
G24
W11
G18
W11NW10W5W8W6W6W10
G17
NW16
G25
W11
2 days agoCalmNW3CalmCalm5S43S9S12
G16
S9S7S5S3CalmS4S6SE4SE3SE3SE4S4S5S6SW6

Tide / Current Tables for Dobbs Ferry, Hudson River, New York
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Dobbs Ferry
Click for Map
Tue -- 05:22 AM EST     0.28 feet Low Tide
Tue -- 06:50 AM EST     Sunrise
Tue -- 09:20 AM EST     Moonrise
Tue -- 11:16 AM EST     3.65 feet High Tide
Tue -- 04:32 PM EST     Sunset
Tue -- 06:00 PM EST     0.13 feet Low Tide
Tue -- 07:12 PM EST     Moonset
Tue -- 11:52 PM EST     2.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
32.51.81.10.60.30.41.12.133.43.63.63.22.41.50.80.30.10.41.32.12.62.9

Tide / Current Tables for Haverstraw (Hudson River), New York Current
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Haverstraw (Hudson River)
Click for Map
Tue -- 02:06 AM EST     -0.00 knots Slack
Tue -- 05:47 AM EST     -1.17 knots Max Ebb
Tue -- 06:51 AM EST     Sunrise
Tue -- 09:16 AM EST     0.00 knots Slack
Tue -- 09:21 AM EST     Moonrise
Tue -- 11:27 AM EST     0.91 knots Max Flood
Tue -- 02:36 PM EST     -0.00 knots Slack
Tue -- 04:32 PM EST     Sunset
Tue -- 06:18 PM EST     -1.31 knots Max Ebb
Tue -- 07:12 PM EST     Moonset
Tue -- 10:07 PM EST     0.00 knots Slack
Tue -- 11:56 PM EST     0.64 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.40.1-0.4-0.8-1.1-1.2-0.9-0.6-0.20.40.90.90.70.3-0.2-0.7-1.1-1.3-1.2-0.9-0.6-0.10.5

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 (5,6,7,8)
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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.