Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
New York, 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 4:35PM Tuesday November 21, 2017 12:42 PM EST (17:42 UTC) Moonrise 10:20AMMoonset 8:13PM Illumination 9% 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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ANZ338 NEw York Harbor- 1152 Am Est Tue Nov 21 2017
.small craft advisory in effect through this evening...
This afternoon..SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft.
Tonight..SW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt after midnight. Waves 2 to 3 ft. Rain likely after midnight.
Wed..NW winds 10 to 15 kt with gusts up to 25 kt. Waves 1 ft or less, then around 2 ft in the afternoon.
Wed night..N winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves around 2 ft in the evening, then 1 ft or less.
Thu..NW winds 5 to 10 kt, becoming W in the afternoon. Waves 1 ft or less.
Thu night..W winds 5 to 10 kt. Waves 1 ft or less.
Fri..W winds 5 to 10 kt. Waves 1 ft or less.
Fri night..SW winds 5 to 10 kt. Waves 1 ft or less.
Sat..SW winds around 10 kt. Waves 1 ft or less.
Sat night..W winds around 10 kt. Waves 1 ft or less.
ANZ300 1152 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 New York, NY
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location: 40.55, -73.89     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 211701
afdokx
area forecast discussion
national weather service new york ny
1201 pm 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
Forecast on track. Mainly sunny day with patchy cirrus. High
temperatures a few degrees above normal due to SW flow ahead of
approaching northern stream trough. Gusty winds this afternoon
20-30 mph, with the highest gusts along the coast due to
increasing surface pressure gradient.

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.

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 18z Tuesday through Sunday
High pressure slides further of the mid-atlantic coast today. A cold
front approaches from the west tonight.

Vfr through at least midnight. MVFR then develops at ct long
island city terminals from E to w. Low chance at ifr ct long
island terminals and very low chance city terminals. Should
stayVFR at kswf through the TAF period.

Sw winds increase to around 10-15g20-25kt by mid-late morning.

Winds diminish late this afternoon early this evening. With
gusts abating during the evening. Winds become light and
variable outside of kjfk klga overnight.

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
SDHN4 - 8531680 - Sandy Hook, NJ 9 mi42 min SSW 14 G 16 54°F 46°F1019.5 hPa (-1.6)
ROBN4 - 8530973 - Robins Reef, NJ 12 mi42 min SSW 17 G 20 54°F 1019.2 hPa (-1.6)
BATN6 - 8518750 - The Battery, NY 12 mi42 min 53°F 52°F1019.3 hPa (-1.7)
BGNN4 - 8519483 - Bergen Point West Reach, NJ 15 mi42 min 55°F 51°F1018.5 hPa (-1.5)
MHRN6 16 mi42 min SSW 12 G 17
44065 - Entrance to New York Harbor 16 mi52 min SSW 19 G 23 54°F 58°F5 ft1018.6 hPa (-1.4)41°F
KPTN6 - 8516945 - Kings Point, NY 19 mi42 min W 17 G 24 53°F 51°F1019.1 hPa (-1.9)
44022 - Execution Rocks 25 mi42 min SSW 18 G 23 55°F 36°F
44040 - Western Long Island Sound 33 mi57 min SW 19 G 25 54°F 2 ft37°F
44025 - LONG ISLAND 33 NM South of Islip, NY 44 mi52 min SW 23 G 27 55°F 56°F7 ft1019.9 hPa (-1.4)
44069 44 mi87 min SW 18 G 21 51°F 46°F39°F

Wind History for Sandy Hook, NJ
(wind in knots)    EDIT      (on/off)   Help
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Last
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W16
G20
W18
G24
W15
G23
W17
G23
W14
G17
SW13
G16
SW13
SW15
SW14
G17
SW14
SW16
SW14
SW15
SW14
G17
SW13
SW15
G19
SW15
SW13
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G21
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1 day
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NW27
NW26
G32
NW21
G26
NW17
G21
NW12
G16
NW14
G17
NW11
W18
G25
NW19
G24
W15
G20
W21
G28
W17
G24
W17
G23
NW15
G20
W22
G28
NW24
NW21
W17
G22
W17
G23
W15
G20
W16
G20
W18
W14
G23
W19
G27
2 days
ago
S7
S9
G13
S12
G16
SW9
S4
G7
SW7
SW13
G17
S6
SE9
S16
S15
G19
SW12
G18
SW17
G22
SW19
G23
SW22
G27
SW22
G28
SW22
G32
SW19
G29
SW24
G32
W29
G42
W22
G34
W26
G34
NW23
G29
NW29

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New York, Kennedy International Airport, NY10 mi51 minSW 1910.00 miMostly Cloudy and Breezy57°F33°F41%1019.6 hPa
New York City, Central Park, NY16 mi51 minno data10.00 miFair54°F30°F40%1018.6 hPa
New York, La Guardia Airport, NY16 mi51 minSW 14 G 2210.00 miMostly Cloudy56°F30°F37%1018.5 hPa
Newark, Newark International Airport, NJ19 mi51 minSW 15 G 2310.00 miMostly Cloudy56°F32°F40%1018.6 hPa
Teterboro, Teterboro Airport, NJ23 mi51 minSSW 17 G 2210.00 miFair55°F32°F42%1018.1 hPa

Wind History from JFK (wind in knots)
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Last 24hrW14
G26
W17
G26
W18
G23
W15W18W15W19SW17
G22
W17W14SW15W14SW16W10SW12SW13SW10SW14SW12SW14SW17SW14S14SW19
1 day agoNW18
G31
NW26
G34
NW23
G30
NW19
G28
NW16
G21
NW21
G28
NW10NW14
G23
W10W13NW17
G25
W17
G22
W15
G21
W20W14W12W14
G21
W12W11
G18
W13W16
G22
W13W15W14
G22
2 days agoS19
G24
S18
G26
S20
G30
S17S18S13SW11SW12S6S16S20
G26
S20S18S19S20SW19S17S17SW19
G25
W22
G31
W19
G36
W25
G35
NW26
G34
W31
G41

Tide / Current Tables for Barren Island, Rockaway Inlet, Jamaica Bay, New York
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Barren Island
Click for Map
Tue -- 03:00 AM EST     0.37 feet Low Tide
Tue -- 06:49 AM EST     Sunrise
Tue -- 09:13 AM EST     5.43 feet High Tide
Tue -- 09:19 AM EST     Moonrise
Tue -- 03:40 PM EST     0.13 feet Low Tide
Tue -- 04:33 PM EST     Sunset
Tue -- 07:13 PM EST     Moonset
Tue -- 09:42 PM EST     4.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.41.40.70.40.71.83.14.35.15.45.24.43.2210.30.20.81.933.84.34.43.9

Tide / Current Tables for The Narrows, Midchannel, New York Harbor, New York Current
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The Narrows
Click for Map
Tue -- 02:20 AM EST     -1.81 knots Max Ebb
Tue -- 05:42 AM EST     0.00 knots Slack
Tue -- 06:49 AM EST     Sunrise
Tue -- 08:14 AM EST     1.81 knots Max Flood
Tue -- 09:20 AM EST     Moonrise
Tue -- 11:33 AM EST     -0.00 knots Slack
Tue -- 02:51 PM EST     -2.07 knots Max Ebb
Tue -- 04:33 PM EST     Sunset
Tue -- 06:37 PM EST     0.00 knots Slack
Tue -- 07:14 PM EST     Moonset
Tue -- 08:44 PM EST     1.31 knots Max Flood
Tue -- 11:48 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-1.4-1.8-1.7-1.1-0.50.31.31.81.71.30.6-0.5-1.3-1.9-2.1-1.7-1.2-0.60.41.11.31.10.7

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for New York City/Upton, NY (12,3,4,5)
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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.