Wednesday, July8, 2020
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Marine Weather and Tides
Guttenberg, NJ

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 5:31AMSunset 8:30PM Wednesday July 8, 2020 7:32 PM EDT (23:32 UTC) Moonrise 11:10PMMoonset 8:51AM Illumination 87% 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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ANZ338 NEw York Harbor- 559 Pm Edt Wed Jul 8 2020
Tonight..S winds 5 to 10 kt. Waves 2 to 3 ft this evening, then 1 ft or less. Slight chance of showers and tstms early this evening.
Thu..SE winds 5 to 10 kt. Waves 1 ft or less.
Thu night..SE winds 5 to 10 kt. Waves 1 ft or less.
Fri..E winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Waves 2 to 3 ft. Showers likely.
Fri night..E winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft. Chance of tstms. Showers likely. Vsby 1 to 3 nm.
Sat..W winds 5 to 10 kt. Waves 2 to 3 ft. Showers likely with chance of tstms in the morning, then showers and tstms likely in the afternoon. Vsby 1 to 3 nm in the morning.
Sat night..SW winds 5 to 10 kt. Waves 1 ft or less. Chance of showers and tstms.
Sun..SW winds 5 to 10 kt. Waves 1 ft or less. Chance of showers and tstms.
Sun night..SW winds 5 to 10 kt. Waves 1 ft or less.
Mon..SW winds 5 to 10 kt. Waves 1 ft or less.
Mon night..W winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher in and near tstms.
ANZ300 559 Pm Edt Wed Jul 8 2020
Synopsis for the long island waters and new york harbor.. Weak high pressure through Thursday. Low pressure will then approach from the south Thursday night into Saturday, followed by a series of weak fronts moving through from later Saturday into early next week.


7 Day Forecast for Marine Location Near Guttenberg, NJ
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location: 40.78, -73.97     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 082303 AFDOKX

Area Forecast Discussion National Weather Service New York NY 703 PM EDT Wed Jul 8 2020

SYNOPSIS. Weak high pressure remains through Thursday. Low pressure will slowly move up the Mid-Atlantic coast Friday into Saturday, followed by a series of weak fronts moving through the region through early next week. High pressure builds in for the middle of the week.

NEAR TERM /UNTIL 6 AM THURSDAY MORNING/. Minor update to temps/dewpoints and pops to better reflect current conditions. Otherwise, convection will gradually dissipate going into early this evening as instability decreases. A mild and humid night is in store as on the large scale, the forecast region remains in the warm sector with light S-SW flow at the surface.

Upper levels show a ridge north of the region. There is a lack of steering flow in the mid to low levels. Lows tonight will range from the upper 60s to lower 70s.

A moderate rip current risk continues into this evening due to relatively long period SE-S swell of 3 ft and S flow 10-15 kt.

SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/. For Thursday, the humid airmass remains with flow becoming more S-SE in the afternoon. More subsidence is evident in the mid levels for Thursday. Convective coverage will be much less. However, with the expected warmer temperatures (expecting overall a few degrees warmer than the previous day), instability will increase and a few showers and thunderstorms will be possible with daytime trough development, mainly north and west of NYC. Trough again is very weak so any convection will quickly subside in the evening with loss of daytime heating.

Regarding the heat advisory, this was kept up since heat index values are again expected to reach the mid to upper 90s and for NYC and northeast NJ this will be the second day in a row for heat index values of at least 95 degrees. Wednesday's occurrences of heat indices in the mid 90s were more isolated and this coverage is expected to be greater for Thursday afternoon. So, the heat advisory remains in place until 6pm Thursday.

For Thursday night, the upper level ridge axis moves east of the region and the low pressure will begin to approach from the south and west. Clouds will increase Thursday night and with the continued onshore flow, min temperatures forecast will be mild in the upper 60s to lower 70s once again. Chances for rain showers increase overnight into daybreak Friday.

There is a moderate risk for rip current development at Atlantic Ocean beaches on Thursday as long period southerly swell continues.

LONG TERM /FRIDAY THROUGH WEDNESDAY/. Low pressure will move up the Mid Atlantic coast on Friday, passing over the region Friday night into Saturday morning. Showers and thunderstorms are expected, especially Friday afternoon and evening likely just north and east of the surface low as it pulls subtropical Atlantic moisture. Still low confidence on location of the heavy rain potential.

An upper-level trough and its associated cold front will move into the area Saturday, resulting in hot and humid conditions and the increase chance for showers and thunderstorms on Saturday and Sunday. The cold front will move off to the east Monday, but the upper-level trough will remain overhead bringing a potential for diurnal convection as well as a gradual trend to a more seasonable airmass through early next week. High pressure builds back across the area for the middle of the week.

Temperatures during the long term period will be in the upper 80s to near 90 with overnight lows in the upper 60s to mid 70s.

High rip current risk is possible for Friday.

AVIATION /22Z WEDNESDAY THROUGH MONDAY/. A surface trough across the region this afternoon will give way to weak high pressure for Thursday.

Showers and thunderstorms have dissipated across the terminals.

A mainly VFR forecast this evening. There in the potential for MVFR conditions to redevelop from east to west overnight into early Thursday morning, with IFR conditions possible at KGON.

A few gusts to 15-20 kt will continue through late afternoon, primarily at coastal terminals. Otherwise, southerly winds around 10 kt will continue before winds decrease to 5 kt or less overnight. Winds then return out of the south at 5-10 kt Thursday morning.

OUTLOOK FOR 18Z THURSDAY THROUGH MONDAY. Thursday afternoon-Thursday night. Low chance TSRA northwest of NYC metros. Chance MVFR or lower in stratus Thursday night. Friday-Saturday. MVFR or lower conditions likely in showers and thunderstorms. Chance E-SE gusts 20-25kt for Friday into Friday night. Sunday-Monday. MVFR or lower possible at times with a chance of showers and thunderstorms.

MARINE. The pressure gradient will remain relatively weak through Thursday night. Conditions on the forecast waters will remain below SCA thresholds.

As a coastal low pressure approaches from the south, SCA conditions are expected mainly on the ocean waters from Friday and into the weekend. Seas will subside slightly on Sunday but will remain above SCA conditions through early in the week.

HYDROLOGY. Urban and poor drainage flood threat exists with any thunderstorm activity through Thursday. Main reason being a lack of steering flow so thunderstorms will be slow moving. Convective coverage will be more isolated Thursday.

There is increasing potential for a moderate to heavy rainfall event Friday into Saturday as a coastal system moves up the Mid- Atlantic coast. Exact timing and track are still uncertain, but this system has the potential to produce at least 1 to 2 inches of rain with higher amounts possible with heavier bands.

EQUIPMENT. NYC NOAA Weather Radio Station KWO35 (162.55 MHz) is undergoing its final stages of testing, and is operating at full power.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . Heat Advisory until 6 PM EDT Thursday for NYZ072>075-176-178. NJ . Heat Advisory until 6 PM EDT Thursday for NJZ004-006-103>108. MARINE . None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BATN6 - 8518750 - The Battery, NY 6 mi93 min 78°F 74°F1014.4 hPa (-1.0)
ROBN4 - 8530973 - Robins Reef, NJ 10 mi93 min S 8 G 9.9 77°F 1014.1 hPa (-1.0)
KPTN6 - 8516945 - Kings Point, NY 11 mi93 min SW 12 G 14 76°F 1014.5 hPa (-1.4)
BGNN4 - 8519483 - Bergen Point West Reach, NJ 13 mi93 min 76°F 77°F1014.4 hPa (-0.6)
MHRN6 14 mi93 min W 1.9 G 2.9
44022 - Execution Rocks 15 mi78 min S 7.8 G 12 76°F 73°F
SDHN4 - 8531680 - Sandy Hook, NJ 22 mi93 min S 8 G 11 78°F 78°F1014.8 hPa (-1.1)
44040 - Western Long Island Sound 24 mi108 min WSW 5.8 G 7.8 74°F 1 ft72°F
44065 - Entrance to New York Harbor 32 mi93 min S 14 G 18

Wind History for Robbins Reef, NJ
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New York City, Central Park, NY0 mi42 minN 010.00 miFair80°F73°F79%1014.1 hPa
New York, La Guardia Airport, NY5 mi42 minS 810.00 miOvercast81°F70°F69%1013.8 hPa
Teterboro, Teterboro Airport, NJ7 mi42 minN 010.00 miFair81°F72°F74%1013.6 hPa
Newark, Newark International Airport, NJ12 mi42 minN 010.00 miMostly Cloudy79°F72°F79%1014 hPa
New York, Kennedy International Airport, NY13 mi42 minS 1110.00 miMostly Cloudy78°F75°F90%1014.4 hPa
Caldwell, Essex County Airport, NJ18 mi40 minN 010.00 miFair81°F72°F74%1014.7 hPa
Morristown Municipal, NJ24 mi2.8 hrsN 010.00 miMostly Cloudy79°F75°F89%1015.6 hPa

Link to 5 minute data for KNYC

Wind History from NYC (wind in knots)
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Last 24hrSE73CalmSE5CalmCalm4--CalmCalmCalm43--Calm--4454555Calm
1 day agoCalm455466E443E33NE6E4NE85NE5E73Calm6CalmSE53
2 days agoCalm3CalmCalmCalmSW3W5CalmCalmCalmCalmCalmCalm35CalmCalmCalm3--55
G20
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Tide / Current Tables for East 41st Street, New York City, East River, New York, New York
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East 41st Street
Click for Map
Wed -- 12:05 AM EDT     5.16 feet High Tide
Wed -- 05:32 AM EDT     Sunrise
Wed -- 06:15 AM EDT     -0.11 feet Low Tide
Wed -- 08:51 AM EDT     Moonset
Wed -- 12:47 PM EDT     4.33 feet High Tide
Wed -- 06:22 PM EDT     0.67 feet Low Tide
Wed -- 08:29 PM EDT     Sunset
Wed -- 11:10 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.24.942.71.50.5-0.10.112.13.13.74.24.33.9321.20.70.81.62.73.64.3

Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
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Throg's Neck
Click for Map
Wed -- 02:40 AM EDT     -0.71 knots Max Ebb
Wed -- 05:31 AM EDT     Sunrise
Wed -- 05:44 AM EDT     0.00 knots Slack
Wed -- 08:47 AM EDT     0.96 knots Max Flood
Wed -- 08:51 AM EDT     Moonset
Wed -- 11:46 AM EDT     -0.00 knots Slack
Wed -- 03:03 PM EDT     -0.71 knots Max Ebb
Wed -- 06:06 PM EDT     0.00 knots Slack
Wed -- 08:28 PM EDT     Sunset
Wed -- 09:12 PM EDT     0.97 knots Max Flood
Wed -- 11:09 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.4-0.6-0.7-0.5-0.100.30.80.90.60.2-0-0.3-0.6-0.7-0.6-0.3-00.20.610.80.3

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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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weather_mapweather_map weather_map

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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 numerous 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.