Thursday, October1, 2020
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Marine Weather and Tides
Riverside, CT

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:50AMSunset 6:37PM Thursday October 1, 2020 8:51 AM EDT (12:51 UTC) Moonrise 6:56PMMoonset 6:22AM Illumination 100% Phase: Full Moon; Moon at 14 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- 315 Am Edt Thu Oct 1 2020
Today..SW winds 5 to 10 kt. Seas 1 ft or less.
Tonight..SW winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less.
Fri..NW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Fri night..NW winds 5 to 10 kt. Seas 1 ft or less.
Sat..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less.
Sat night..NW winds 5 to 10 kt. Seas 1 ft or less.
Sun..NE winds 5 to 10 kt, becoming se in the afternoon. Seas 1 ft or less.
Sun night..E winds 5 to 10 kt. Seas 1 ft or less. Chance of rain after midnight.
Mon..E winds 5 to 10 kt. Seas 1 ft or less. Chance of rain.
Mon night..NE winds around 10 kt, becoming nw after midnight. Seas 1 ft or less. Chance of rain.
ANZ300 315 Am Edt Thu Oct 1 2020
Synopsis for the long island waters and new york harbor.. A cold front approaches from the great lakes then stalls nearby on this afternoon with a frontal wave developing tonight. This wave passing near or just east of the waters on Friday. High pressure builds in from the west for Saturday and Sunday, then moves northeast of the waters Sunday night. Low pressure moves into the waters for Monday and Monday night.


7 Day Forecast for Marine Location Near Riverside, CT
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location: 41.02, -73.6     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 011159 AFDOKX

Area Forecast Discussion National Weather Service New York NY 759 AM EDT Thu Oct 1 2020

SYNOPSIS. Long wave trough axis through the Great Lakes region moves slowly east today through tonight. Shortwave impulse embedded within the wave flows into the Lower Hudson Valley Friday. High pressure builds in from the west for Saturday and Sunday, then moves northeast of the region Sunday night. Low pressure moves through the area Monday and Monday night. High pressure returns for Tuesday into early Wednesday. There is a chance of a storm passing north of the area Wednesday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. The long wave trough over the Great Lakes region continues the southwesterly upper level flow. These winds keep the environment relatively moist with precipitable water values around 0.85 inches. But with no lift to speak of rain chances will be near zero today. The moisture should allow for mid level cloud cover as 850-700 RH values hover around 75-80%. Near the surface, southwest winds promote mild temperatures. Afternoon highs are expected to reach the mid 70s.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/. Rain chances increase this evening. A shortwave impulse embedded within the overall flow enters southern New York late tonight into the overnight hours. The wave deepens a surface low over Lake Erie and strengthens the trailing cold front. These features act as the lifting mechanism for the overnight showers. Since moisture locally isn't that high to start with as PWATs remain around 0.90 inches, models are indicating that the highest rainfall amounts will be less than 0.10 inches. These totals are expected to be focused around the Lower Hudson Valley and northeast New Jersey with decreasing amounts the further to are from the lows center.

The cold front itself pushes through the forecast area Friday. High temperatures will struggle to reach the mid 60s in the afternoon and will probable feel chiller thanks to the 10 mph northwest wind.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. Most of the long term forecast will be dominated by a high amplitude longwave upper pattern, as a ridge remains in place across the western states and a trough across the central and eastern states. With a deeper shortwave moving through the longwave trough Monday the upper pattern becomes more progressive with the eastern trough weakening, and the western ridge moving into the intermountain region and western plains, until Wednesday as another high amplitude shortwave moves into the upper trough. This will keep the eastern states below seasonal normals for temperatures through the extended period.

With the shortwave Monday leaned toward the Canadian and ECMWF and WPC guidance, which all have a deep low tracking through the region, while the GFS is much more progressive and has high pressure over the region by Monday.

With the more progressive flow into the middle of next week high pressure briefly builds to the south Tuesday into Wednesday before another deep low potentially impacts the region Wednesday.

AVIATION /12Z THURSDAY THROUGH MONDAY/. A cold front approaches overnight and into Thursday.

VFR today with WSW flow around 8-12 kt, with ocnl gusts 15-18 kt mainly this afternoon. Winds shift W and diminish this eve before cold fropa, then veer NW overnight, with BKN cigs moving in with perhaps a few light showers late tonight.

. NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty .

AMD may be needed to fine tune wind speeds/gusts this afternoon.

OUTLOOK FOR 12Z FRIDAY THROUGH MONDAY. Friday. Chance of rain showers, mainly for the morning and early afternoon. Best chance for MVFR conds will be NW of the NYC metros. Saturday. VFR. Sunday. Mainly VFR. Chance of rain late at night with MVFR possible. Monday. MVFR possible with chance of rain.

Detailed information, including hourly TAF wind component forecasts, can be found at: http:/www.weather.gov/zny/n90

MARINE. SCA conditions will linger on the ocean waters today with seas 5 to 6 feet gradually diminishing through the day.

Winds and seas likely remain below SCA levels across the forecast waters Friday through Sunday night. With a storm moving into the waters Monday there is the potential for SCA gusts across the waters, and ocean seas may approach 5 feet. However, there is uncertainty as to the strength and track of the storm.

HYDROLOGY. A low pressure system may impact the region Sunday night through Monday night with the potential for a significant rainfall. However, there is high uncertainty as to the strength and track of the low which would affect potential rainfall.

OKX WATCHES/WARNINGS/ADVISORIES. CT . None. NY . None. NJ . None. MARINE . Small Craft Advisory until noon EDT today for ANZ355. Small Craft Advisory until 6 PM EDT this evening for ANZ350- 353.

SYNOPSIS . DJ/MET/DW NEAR TERM . DJ SHORT TERM . DJ LONG TERM . MET AVIATION . Goodman MARINE . DJ HYDROLOGY . DJ/MET/DW


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44040 - Western Long Island Sound 5 mi82 min SSW 14 G 18 63°F 56°F
44022 - Execution Rocks 12 mi52 min SSW 12 G 14 66°F 59°F
KPTN6 - 8516945 - Kings Point, NY 17 mi52 min W 8 G 11 62°F 1012.7 hPa (+0.7)
BRHC3 - 8467150 - Bridgeport, CT 25 mi52 min WSW 2.9 G 4.1 63°F 71°F1011.2 hPa (+0.4)
BATN6 - 8518750 - The Battery, NY 31 mi52 min 60°F 69°F1012.3 hPa (+0.7)
44069 35 mi52 min WSW 16 G 19 67°F 59°F
ROBN4 - 8530973 - Robins Reef, NJ 35 mi52 min W 9.9 G 12 60°F 1011.8 hPa (+0.6)
BGNN4 - 8519483 - Bergen Point West Reach, NJ 39 mi52 min 59°F 69°F1012.1 hPa (+0.9)
MHRN6 40 mi52 min SW 8.9 G 11
NWHC3 - 8465705 - New Haven, CT 41 mi52 min WSW 8.9 G 11 65°F 67°F1012.4 hPa (+0.3)
SDHN4 - 8531680 - Sandy Hook, NJ 44 mi52 min WSW 13 G 16 61°F 1012.7 hPa (+0.8)
44065 - Entrance to New York Harbor 45 mi32 min SW 16 G 18 69°F1011.7 hPa

Wind History for Kings Point, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
White Plains - Westchester County Airport, NY8 mi56 minVar 310.00 miFair58°F52°F81%1011.5 hPa
Farmingdale - Republic Airport, NY22 mi59 minSW 910.00 miFair63°F54°F73%1012 hPa
New York, La Guardia Airport, NY22 mi61 minSW 810.00 miA Few Clouds62°F53°F73%1011.8 hPa

Link to 5 minute data for KHPN

Wind History from HPN (wind in knots)
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W6W3--SW3CalmSW3SW5443333SW33
1 day agoS7SE9SE6SE5SE8SE9SE7SE8SE4SE5SE4E5SE8SE10SE11S10S11
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2 days agoS6S9S6S10S6S8S8SE8S8S9SE6SE7SE4SE4SE5SE4SE4SE4SE7SE6SE4SE5SE4SE6

Tide / Current Tables for Cos Cob Harbor, Connecticut
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Cos Cob Harbor
Click for Map
Thu -- 05:49 AM EDT     0.29 feet Low Tide
Thu -- 06:22 AM EDT     Moonset
Thu -- 06:51 AM EDT     Sunrise
Thu -- 11:48 AM EDT     7.89 feet High Tide
Thu -- 05:06 PM EDT     Full Moon
Thu -- 06:10 PM EDT     0.15 feet Low Tide
Thu -- 06:35 PM EDT     Sunset
Thu -- 06:56 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.66.85.33.61.90.60.312.54.46.27.57.97.25.84.12.30.80.20.51.83.65.57

Tide / Current Tables for Throg's Neck, Long Island Sound, New York Current
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Throg's Neck
Click for Map
Thu -- 03:24 AM EDT     0.00 knots Slack
Thu -- 05:52 AM EDT     0.96 knots Max Flood
Thu -- 06:23 AM EDT     Moonset
Thu -- 06:52 AM EDT     Sunrise
Thu -- 09:14 AM EDT     -0.00 knots Slack
Thu -- 12:12 PM EDT     -0.73 knots Max Ebb
Thu -- 03:32 PM EDT     0.00 knots Slack
Thu -- 05:06 PM EDT     Full Moon
Thu -- 06:15 PM EDT     1.01 knots Max Flood
Thu -- 06:36 PM EDT     Sunset
Thu -- 06:57 PM EDT     Moonrise
Thu -- 09:38 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.5-0.3-0.10.20.710.60.30.1-0.2-0.5-0.7-0.6-0.3-0.10.10.610.90.40.1-0.1-0.4

Weather Map
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wmap_A
GEOS Local Image of    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
Ground Weather Radar Station Upton, NY
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weather_mapweather_map weather_map


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