Penn Yan, NY Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Penn Yan, NY

June 21, 2024 11:07 PM EDT (03:07 UTC) Change Location
Sunrise 5:27 AM   Sunset 8:48 PM
Moonrise 8:10 PM   Moonset 3:34 AM 
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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 Mexico Bay Along Lake Ontario Including Irondequoit Bay- 943 Am Edt Fri Jun 21 2024

Today - Northeast winds 5 to 10 knots. Partly Sunny late this morning, then becoming mostly Sunny. Waves 1 foot or less.

Tonight - North winds 5 to 10 knots becoming light and variable. Mostly cloudy. Waves 1 foot or less.

Saturday - Light and variable winds. A chance of showers in the morning, then a chance of showers and Thunderstorms in the afternoon. Waves 1 foot or less.

Saturday night - East winds 5 to 10 knots becoming south. A chance of showers and Thunderstorms in the evening, then showers likely with a chance of Thunderstorms overnight. Waves 1 foot or less.

Sunday - Southwest winds 15 to 20 knots becoming west 10 to 15 knots. Showers likely with a chance of Thunderstorms. Waves 1 to 3 feet building to 3 to 6 feet. Waves occasionally around 7 feet.

Monday - West winds 5 to 15 knots. A chance of showers and Thunderstorms. Waves 2 to 4 feet subsiding to 1 to 3 feet.

Tuesday - West winds 5 to 10 knots becoming south. A chance of showers Tuesday night. Waves 2 feet or less.
winds and waves higher in and near Thunderstorms.
the water temperature off rochester is 59 degrees.

No data

7 Day Forecast for Marine Location Near Penn Yan, NY
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Area Discussion for - Binghamton, NY
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Area Forecast Discussion National Weather Service Binghamton NY 927 PM EDT Fri Jun 21 2024

Hot and humid conditions with scattered thunderstorms continue this evening and redevelop Saturday and Sunday. A few stronger storms any of these days may produce damaging winds and torrential rainfall. Heat and humidity will subside Monday.


915 PM Update...

Updated PoPs and temperatures based on the latest observations.
Radar shows a cluster of thunderstorms still impacting mainly the Wyoming Valley and Poconos region of NE PA at this time.
These storms have been producing isolated damaging winds and torrential downpours earlier this evening. Updated fog coverage for the overnight period as well, as some areas of fog do look likely to develop. Otherwise, expect a warm and muggy night with lows in the mid 60s to lower 70s. Saturday will be another very warm and humid day with highs ranging from 85 to 95 over the region. Heat advisories remain in effect for the Twin Tiers, south across all of Northeast PA.

240 PM update...
Primary concerns in the near term are focused on the continued threat for hazardous heat/humidity today and Saturday, along with potentially severe thunderstorms the rest of this afternoon and again Saturday afternoon.

Large dome of high pressure centered over the southern Appalachian Mtns is expected to persist into this weekend with hot and humid conditions reaching north into the mid Atlantic and Northeast. Heat Advisories for the southern tier of NY and northeast PA continue today and through the day Saturday.
Afternoon temperatures have climbed into the upper 80s and lower 90s today, with dew points in the upper 60s and lower 70s making it feel like 90 to 100 from Syracuse-Utica south to Scranton/W-B.

The heat and humidity today has led to a broad axis of instability over southern NY and northern PA. Weak inhibition earlier this morning led to rapid convective development with little time for the storms to build up steam. The lack of steering flow and a very limited amount of deep layer shear has brought about unorganized storms and chaotic storm motions. The robust amount of deep moisture allowed a few of the storms so far to produce some wet microbursts, and this will continue to be the main threat into the early evening hours. Many of these storms have left behind outflow boundaries that other convection may focus on today, so timing and location of additional convection will be difficult to nail down.

The storms will subside after sunset this evening and conditions will stabilize. Plenty of moisture in the boundary layer and a weak near sfc inversion will allow for another round of low clouds and fog tonight. Temperatures will only fall into the upper 60s and 70s tonight.

The threat for heat/humidity ramps back up late Saturday morning and continues into the afternoon...especially for the southern tier of NY and ne PA. Temperatures back into the upper 80s near 90 for central NY and into the lower to mid 90s for ne PA are expected with heat indices 90 to 100.

Another round of thunderstorms will develop Saturday afternoon...similar to today within a similar type air mass/environment. So we can expect the storms to be slow-moving again with the threats being heavy rain, lightning and brief strong, possibly severe, wind gusts. The timing on Saturday looks to be around 1 PM to around 6 PM.

The pattern is finally expected to shift Sunday as the strong upper- level ridge responsible for the long duration heat and humidity begins breaking down as a shortwave trough and surface cold front approach from the west. This will lead to an increasing chance of showers and thunderstorms Sunday, especially during the afternoon and evening when precipitation appears likely. With the cold front trending a little bit faster early this morning, moving into our area during peak heating hours, along with 1000-1500 J/kg of surface- based CAPE in place and 30-40 knots of shear, there will be the potential for some stronger storms to develop. Mid-level lapse rates are not very impressive at this point, so this looks to be more of a wind threat with any potential stronger storms along with heavy downpours with PWAT values in excess of 1.5 inches. The SPC has outlooked the entire CWA in a marginal risk this day. With uncertainty with the timing of the front, cloud cover and the convection, temperatures on Sunday will be tricky to forecast. Highs have trended down several degrees across CNY in the low and mid 80s with the faster progression of the front, while the Twin Tiers into NE PA range from the mid 80s to the low 90s. This still gets some heat index values to around 95 for the Southern Tier of NY into NE PA. So the heat advisory was extended through Sunday with the afternoon forecast package.

As the front pushes east, the upper trough will lag behind over the area on Monday, keeping the chance for scattered showers and maybe a thunderstorm around. However, cooler, drier air will be moving in for most areas as dew points fall back into the upper 50s and low 60s by the afternoon. Highs Monday are expected to be from the mid 70s to the low 80s. With the Wyoming Valley being one of the last spots for this more refreshing air to move into, highs this day can still reach the mid and upper 80s. It will feel more comfortable Monday night with lows in the upper 50s and low 60s.

Only subtle changes to the previous long term discussion. GFS trended more toward the ECMWF suite with a cooler and more progressive look later next week. High pressure briefly builds in overhead Tuesday leading to a dry day before another front looks to bring the chance for showers and storms back into the area Wednesday into Thursday. With ridging aloft Tuesday, high temperatures are expected to trend back into the 80s, but it's not expected to feel too humid as dew points remain in the upper 50s and low 60s, but they will be trending up Wednesday ahead of the front. Wednesday is expected to also expected to have highs in the 80s, and perhaps nearing 90 degrees in a few places, before cooler air moves in again for the second half of the week.

LIFR, heavy thunderstorms will be impacting AVP over the next hour or so (until 22/01z).

Conditions will stabilize after 00-01Z and areas of low clouds and fog are expected to develop once again through the overnight hours. The most favorable locations for fog are ELM, BGM and AVP; where the heaviest rainfall occurred. ELM should see a period of IFR or lower fog, mainly between 07-11z Saturday morning.

Conditions will return to VFR at most sites, after the fog lifts and mixes out around 12-13Z, through the rest of the period. There could be some MVFR cigs and light rain showers that move in from the north just before between 12-16z and impact RME and SYR.

There will also be more scattered showers and possible thunderstorms around after 18z, but confidence on location and timing was too low to include in the tafs at this time.


Saturday evening through Monday...Spotty restrictions possible in showers and thunderstorms.

Tuesday and Wednesday...VFR conditions likely.

PA...Heat Advisory until 8 PM EDT Sunday for PAZ038>040-043-044-047- 048-072.
NY...Heat Advisory until 8 PM EDT Sunday for NYZ022>025-055-056-062.
Air Quality Alert until 11 PM EDT this evening for NYZ062.
Air Quality Alert from 11 AM to 11 PM EDT Saturday for NYZ062.

Weather Reporting Stations
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Wind History for Oswego, NY
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KPEO PENN YAN,NY 3 sm14 mincalm8 smClear72°F70°F94%30.12
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Wind History graph: PEO
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Tide / Current for
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GEOS Local Image of north east   

Binghamton, NY,

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