Monday, August3, 2020
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Marine Weather and Tides
Penn Yan, NY

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 5:59AMSunset 8:24PM Monday August 3, 2020 2:00 PM EDT (18:00 UTC) Moonrise 7:54PMMoonset 4:40AM 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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LOZ043 Hamlin Beach To Sodus Bay Along Lake Ontario Including Irondequoit Bay- 653 Am Edt Mon Aug 3 2020
.small craft advisory in effect until 11 am edt this morning...
Today..West winds 15 to 20 knots becoming north and diminishing to less than 10 knots this afternoon. A chance of waterspouts early. A chance of showers early. A chance of Thunderstorms early this afternoon, then a chance of showers and Thunderstorms late. Waves 4 to 7 feet subsiding to 1 to 2 feet. Waves occasionally around 9 feet.
Tonight..Northeast winds 10 knots or less becoming southeast. Showers likely with a chance of Thunderstorms in the evening, then showers likely overnight. Waves 1 foot or less.
Tuesday..South winds 5 to 10 knots becoming southwest. Showers likely in the morning, then showers likely with a chance of Thunderstorms in the afternoon. Waves 1 foot or less.
Tuesday night..West winds 10 knots or less becoming northwest 10 to 15 knots. Showers likely with a chance of Thunderstorms in the evening, then a chance of showers and Thunderstorms overnight. Waves 1 to 3 feet.
Wednesday..Northwest winds 5 to 15 knots becoming west. A chance of showers during the day. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Thursday..West winds 10 knots or less becoming southwest. Becoming mainly clear. Waves 2 feet or less.
Friday..South winds 10 knots or less. Partly cloudy. Waves 1 foot or less. Winds and waves higher in and near Thunderstorms. The water temperature off rochester is 72 degrees.
LOZ043 Expires:202008031515;;863164 FZUS51 KBUF 031053 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 653 AM EDT Mon Aug 3 2020 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LOZ043-031515-


7 Day Forecast for Marine Location Near Penn Yan, NY
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location: 42.62, -77     debug


Area Discussion for - Binghamton, NY
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FXUS61 KBGM 031741 AFDBGM

Area Forecast Discussion National Weather Service Binghamton NY 141 PM EDT Mon Aug 3 2020

SYNOPSIS. Mainly dry weather is expected today, along with less humid conditions. Tropical Storm Isaias will move up the coast and bring periods of rain and some embedded thunderstorms tonight through late Tuesday night, especially east of Interstate 81. Drier weather returns Wednesday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. 930 AM Update . No changes with the latest update. Apart from a few showers grazing Oneida county, staying dry so far with better chances for showers developing later this afternoon and evening.

630 AM Update: Relatively quiet weather is expected today as the area will be under the influence of brief surface ridging. That being said, a few showers or even a stray thunderstorm cannot be ruled out as an upper level low drops into the Great Lakes region. Greatest chance for this will be in the late afternoon across the Finger Lakes region. Otherwise, partial sunshine is expected. Highs will be mainly in the upper 70s to mid 80s. With dewpoints in the lower to mid 60s, it will be noticeably less humid than yesterday as well.

SHORT TERM. WEDNESDAY THROUGH THURSDAY

A trough extending from a northern Ontario low may bring some showers into the area early Wednesday, otherwise a quiet period as high pressure builds in from the Great Lakes. Upper confluent flow will keep the surface high in place at least into Thursday keeping the area dry.

This will also give the area a break from the heat with daytime highs below normal for the period.

LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/.

135 PM UPDATE .

No changes to the long term . A welcome break with quiet weather under high pressure through at least Sunday.

530 AM Update . In the wake of Isaias, a relatively quiet and slightly cooler than average period is anticipated for Wednesday through Friday, followed by warming over the weekend.

A large and cool upper low will be wobbling from Ontario into Quebec Wednesday, with broad cyclonic flow around it perhaps including a weak shortwave or two pivoting over our area. That said, the air mass will be very dry with dewpoints crashing into the 50s. A few spotty showers cannot be ruled out, especially early on, but the dry air mass will dominate the day with increasing sunshine as well. Highs will be 70s to near 80.

Quite a cool and clear night is anticipated Wednesday night under high pressure and thus good radiational cooling. Lows will be mainly in the 50s; a couple of our coldest spots could even manage upper 40s. Valley fog formation is probable considering the ground moisture/evapotranspiration that will be left behind after Isaias.

Temperatures and dewpoints remain rather comfortable Thursday and Friday, with dry conditions until a wave later on Friday brings a small chance of showers or an isolated thunderstorm; mainly Northeast PA and well south of the NY Thruway.

Ridging occurs over the weekend, allowing temperatures to gradually warm to highs mainly in the 80s especially by Sunday. Dewpoints will only inch up however; not too humid. Both Saturday and Sunday there could be isolated pop up showers and thunderstorms in the afternoon, but most areas will stay dry.

AVIATION /18Z MONDAY THROUGH SATURDAY/.

Generally VFR this afternoon at the TAF sites ahead of the tropical storm. Clouds will lower overnight ahead of the system with rain breaking out before daybreak. As the rain moves in, ceilings and visibilities will lower to MVFR in most places. MVFR conditions will continue to the end of the TAF period.

Outlook . Tuesday night . Restrictions with waves of rain/embedded thunder from tropical system. Period of low level wind shear possible as system zips by Tuesday afternoon-evening.

Wednesday through Saturday . VFR, except late night-early morning valley fog likely at KELM; possibly other terminals.

BGM WATCHES/WARNINGS/ADVISORIES. PA . Flash Flood Watch from Tuesday morning through late Tuesday night for PAZ039-040-043-044-047-048-072. NY . Flash Flood Watch from Tuesday morning through late Tuesday night for NYZ046-057-062.

SYNOPSIS . BJG NEAR TERM . BJG/HLC SHORT TERM . DGM LONG TERM . DGM/MDP AVIATION . DGM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RPRN6 - Rochester, NY 55 mi61 min N 7 G 8.9 71°F
RCRN6 - 9052058 - Rochester, NY 56 mi43 min 73°F 1016.3 hPa
OSGN6 - 9052030 - Oswego, NY 64 mi43 min 74°F 1016.6 hPa64°F

Wind History for Oswego, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Penn Yan, Penn Yan Airport, NY3 mi68 minN 010.00 miPartly Cloudy79°F60°F52%1016.5 hPa

Link to 5 minute data for KPEO

Wind History from PEO (wind in knots)
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W8W9SW8SW6W5NW6W11W5SW6Calm
1 day agoSE745443SE4SW6S4S4CalmS3SE5S4CalmS5S5S8S6S10S13
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2 days ago53N7NW6663CalmCalmCalmCalmSW4SW3W3W3SW3SW3SW4SW6W3SW3E55NE5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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
Wind Forecast for Binghamton, NY (14,3,4,5)
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Ground Weather Radar Station Binghamton, NY
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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 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.