Wednesday, March3, 2021
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Marine Weather and Tides
Hammondsport, NY

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:36AMSunset 6:01PM Wednesday March 3, 2021 7:13 PM EST (00:13 UTC) Moonrise 11:29PMMoonset 9:12AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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 Mexico Bay Along Lake Ontario Including Irondequoit Bay- 325 Pm Est Wed Mar 3 2021
.small craft advisory in effect until 10 pm est this evening...
Tonight..West winds 10 to 15 knots becoming north 15 to 20 knots. A chance of rain and snow showers early, then a chance of snow showers from late evening on. Waves 2 to 4 feet building to 3 to 5 feet. Waves occasionally around 6 feet.
Thursday..North winds 15 to 20 knots becoming northwest. A chance of snow showers in the morning. Waves 3 to 5 feet. Waves occasionally around 6 feet.
Thursday night..Northwest winds 15 to 20 knots. Partly cloudy. Waves 3 to 6 feet. Waves occasionally around 7 feet.
Friday..Northwest winds 15 to 25 knots becoming west. A chance of snow showers in the afternoon. Waves 3 to 6 feet building to 5 to 8 feet. Waves occasionally around 10 feet.
Friday night..Northwest winds 15 to 25 knots. A chance of snow showers. Waves 5 to 8 feet subsiding to 3 to 6 feet. Waves occasionally around 10 feet.
Saturday..Northwest winds 15 to 20 knots diminishing to 5 to 15 knots. A chance of snow showers during the day. Waves 3 to 5 feet subsiding to 1 to 3 feet. Waves occasionally around 6 feet.
Sunday..Northwest winds 5 to 10 knots becoming southwest. Partly cloudy. Waves 2 feet or less.
Monday..Southwest winds 5 to 15 knots. Partly to mostly cloudy. Waves 2 feet or less. The water temperature off rochester is 35 degrees.
LOZ043 Expires:202103040415;;423506 FZUS51 KBUF 032025 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 325 PM EST Wed Mar 3 2021 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. LOZ043-044-040415-


7 Day Forecast for Marine Location Near Hammondsport, NY
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location: 42.5, -77.14     debug


Area Discussion for - Binghamton, NY
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FXUS61 KBGM 032343 AFDBGM

Area Forecast Discussion National Weather Service Binghamton NY 643 PM EST Wed Mar 3 2021

SYNOPSIS. Another surge of polar air will cause scattered showers to form over NY State tonight and early Thursday. Dry, cold weather will persist through Thursday evening, before lake effect snow showers move into Northern NY early Friday.

NEAR TERM /THROUGH THURSDAY NIGHT/. 530 PM Update . Temps were adjusted as some locations are still on the warmer side. Touched up winds as well. Most significant changes were made to PoPs as there is nothing showing up on radar yet. Guidance still suggest that there will a mix transitioning to light snow showers tonight, so gradually increased PoPs over the next few hours. Minor adjustments were made to QPF and total snow accumulation as a result.

Previous Discussion . A deep upper level cyclone will continue to spin over Eastern Canada through the next 36 hours. A surface storm system will move across Ontario Province tonight and drag another cold front across NY and PA.

The cold front will set off scattered snow showers tonight before the activity transitions to light lake effect snow showers. Expect a dusting to several-tenths of an inch of snow accumulation overnight, mainly over our NY counties.

The persistent polar flow will continue Thursday, causing light lake effect snow showers over Upstate NY. Little accumulation is expected. Temperatures will peak between 25 and 30 degrees, about 10 to 15 degrees colder than normal.

West-northwest flow across Lake Ontario will produce additional light snow activity over Upstate NY Thursday night. Expect a dusting to a half-inch of snow accumulation by morning. Temperatures will fall to between 10 and 15 degrees. A few readings in the single digits will occur over Northern Oneida County and along the Catskills.

SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/. 300 PM Update . Persistent cold northwest flow with a stacked low situated over the Canadian Maritimes will keep in chances for some lake effect flurries and snow showers into Friday, but with a fairly dry airmass, snow totals during the day Friday should be fairly light. Will not rule out totals upwards of an inch, though, especially across the higher terrain southeast of Syracuse. Otherwise, expect a fairly breezy day with highs only in the 20s, perhaps lower 30s in the Wyoming valley.

Friday night, another shortwave drops in with deeper moisture allowing for additional light accumulations across much of central NY. Again, the highest totals (possibly up to 1 to 2 inches) would be expected southeast of Lake Ontario, where we may see some lake enhancement. Otherwise, expect Friday night lows in the teens across much of the area, and in the single digits towards northern Oneida county. A potential for some scattered lake effect snow showers lingers the rest of Saturday. Saturday stays chilly, with highs in the 20s and overnight lows once again in the teens and single digits.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. 300 PM Update . The remainder of the forecast remains largely on track, but minor adjustments have been made to temperatures for early next week. Sunday and Monday may stay a few degrees cooler, as the latest guidance is slower to bring in the warmer airmass that should help to bring in above average temperatures by the middle of next week.

300 AM Update . Though there is still some disagreement on how long the process takes, models have the same general idea that a moderation trend will finally get going early next week as the chilly stacked low opens up into a departing trough.

Chilly cyclonic flow is likely to linger into Sunday, though moisture will also become rather shallow to cause lake effect snow showers/flurries to finally wind down. We are still looking at rather cool highs of upper 20s to mid 30s Sunday, followed by radiational cooling of the very dry air mass for lows of upper single digits to teens Sunday night.

Models allow the closed low to open into an amplified trough, which lifts well northeast of our region to unlock the pattern. There is some uncertainty for how long it takes initially westerly flow to back southwesterly, but the end result of milder temperatures is similar either way. The pattern also appears rather quiet for at least a few days, before some potential of embedded waves towards the middle of next week. Though 50 degrees is not totally out of the question for a couple spots Monday, it appears more probable Tuesday- Wednesday for most of the area.

AVIATION /00Z THURSDAY THROUGH MONDAY/. A frontal system across Upstate NY will bring scattered MVFR ceilings to the region, affecting KRME and KSYR at times through early evening. Widespread MVFR or fuel alternate ceilings will spread across our terminals overnight and persist through Thursday morning.

Light snow showers will cause MVFR visibility restrictions over our northern terminals overnight.

Flight conditions will slowly improve Thursday afternoon.

Outlook .

Thursday afternoon through midday Friday . Mainly VFR expected.

Friday evening through Sunday . Scattered lake effect snow showers may bring occasional restrictions to the NY terminals.

BGM WATCHES/WARNINGS/ADVISORIES. PA . None. NY . None.

SYNOPSIS . DJP NEAR TERM . BTL/DJP SHORT TERM . HLC LONG TERM . HLC/MDP AVIATION . DJP


Weather Reporting Stations
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Wind History for Oswego, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Penn Yan, Penn Yan Airport, NY11 mi20 minWNW 510.00 miFair40°F28°F63%1012 hPa

Link to 5 minute data for KPEO

Wind History from PEO (wind in knots)
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Last 24hrCalmCalmCalmCalmS5SW5SW8W11SW14SW16
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1 day agoNW15
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S10S7S11S10S85W8
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Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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