Wednesday, August12, 2020
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Marine Weather and Tides
Greece, 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 6:11AMSunset 8:18PM Wednesday August 12, 2020 7:03 PM EDT (23:03 UTC) Moonrise 11:49PMMoonset 2:01PM Illumination 34% Phase: Waning Crescent; Moon at 24 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- 403 Pm Edt Wed Aug 12 2020
Tonight..West winds less than 10 knots becoming southwest. Mainly clear. Waves 1 foot or less.
Thursday..Southwest winds less than 10 knots becoming north. Sunny. Waves 1 foot or less.
Thursday night..North winds 10 knots or less becoming northeast. Mainly clear. Waves 2 feet or less.
Friday..Northeast winds 5 to 15 knots. Sunny. Waves 1 to 3 feet.
Friday night..Northeast winds 5 to 10 knots becoming east. Partly cloudy. Waves 2 feet or less.
Saturday..East winds 5 to 15 knots becoming southeast. Partly to mostly cloudy. Waves 2 feet or less.
Sunday..Southeast winds 5 to 10 knots becoming south. A chance of showers during the day, then a chance of showers and Thunderstorms Sunday night. Waves 1 foot or less.
Monday..South winds 5 to 10 knots becoming west. A chance of showers and Thunderstorms. Waves 2 feet or less. Winds and waves higher in and near Thunderstorms. The water temperature off rochester is 75 degrees.
LOZ043 Expires:202008130315;;349718 FZUS51 KBUF 122003 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 403 PM EDT Wed Aug 12 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. LOZ043-044-130315-


7 Day Forecast for Marine Location Near Greece, NY
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location: 43.29, -77.68     debug


Area Discussion for - Buffalo, NY
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FXUS61 KBUF 122103 AFDBUF

Area Forecast Discussion National Weather Service Buffalo NY 503 PM EDT Wed Aug 12 2020

SYNOPSIS. Mainly dry weather is expected through the end of the week, with temperatures remaining above average. Low pressure will bring the chance for rain this weekend before a cold front ushers in cooler weather next week.

NEAR TERM /UNTIL 6 AM THURSDAY MORNING/. Translucent cirrus is streaming in overhead on satellite imagery, however the layer below the clouds is dry as it can be. A veritable chasm in the dewpoint depression exists in skew-T plots from 850 hPa to 350 hPa overhead. Thus, even with some high clouds around, the chance of rain overnight remains nil. In fact, dewpoints sagging as much as they have this afternoon ensures dry conditions remain.

With nothing but cirrus overhead, a dry atmosphere, and subsidence at play, temperatures well into the 80s will tail off quickly at sundown with the loss of insolation. Further, temperature falls, strong inversions forming overnight, and the trapping of heat/moisture from rivers in the lower elevations of the southern stream mean a chance at some patchy fog in the lower and more isolated valley locations of the Southern Tier toward sunrise Thursday. Elsewhere, fair conditions will continue.

SHORT TERM /6 AM THURSDAY MORNING THROUGH FRIDAY/. High pressure remains in charge through the short term, even as flow slowly returns from the south. This will bring humidity levels up progressively, however still any deeper moisture that would cause any showers will remain to our south.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. Dry conditions will last into throughout the night Friday as a bubble of high pressure over central Quebec extends southward across the the region. Meanwhile an area of low pressure will develop across the southern portions of the Ohio Valley before making its north-northeasterly track into the Mid-Atlantic Saturday night through Sunday. As the low approaches the southern periphery of the forecast region Saturday night, moisture will increase across the Southern Tier and therefore favoring the slight chance for showers and thunderstorms along the far western Southern Tier.

A well defined upper level trough will push east across the Mid-West and eventually the Northeast throughout the first half of the new work week. As the upper level trough approaches, its associated cold front will cross the central Great Lakes Sunday night before crossing the area on Monday. With its arrival and passage, expect the chances and likelihood of showers and thunderstorms to increase from west to east throughout the day on Monday.

As the front departs the region and enters the Northeast, chances for showers will decrease from west to east Monday night. Behind the departing system, a large area of high pressure will engulf much of the eastern half of the CONUS Tuesday before beginning to build overhead on Wednesday. With that said, residual instability over the region on Tuesday along with any leftover moisture may be conducive to support a few showers. Otherwise, primarily dry weather for the remainder of the forecast period.

In regards to temperature, temperatures will start off slightly above normal before beginning a slight cooling trend throughout the first half of the new work week. Highs Saturday will climb up into the low to mid 80s, whereas Sunday's highs will range in the upper 70s to low 80s. Highs throughout the first half of the work week will range in the 70s, with the exception of a couple of 80 degree readings along the Lake Plains on Monday.

AVIATION /21Z WEDNESDAY THROUGH MONDAY/. VFR conditions will continue. A bit of valley fog is possible around sunrise near and just east of KJHW, however that should be light and break up very quickly.

Outlook .

Thursday and Friday . Mainly VFR with local IFR in river valley fog across the Southern Tier each late night and morning. Saturday through Monday . Mainly VFR with a chance of showers.

MARINE. High pressure and very light winds will characterize the next day or two. This will result in just small waves through the near term.

BUF WATCHES/WARNINGS/ADVISORIES. NY . None. MARINE . None.



SYNOPSIS . Fries NEAR TERM . Fries/JLA SHORT TERM . Fries LONG TERM . EAJ AVIATION . Fries MARINE . Fries


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCRN6 - 9052058 - Rochester, NY 3 mi45 min 76°F 1018.9 hPa
RPRN6 - Rochester, NY 5 mi123 min N 5.1 G 6 76°F
45012 - Lake Ontario Buoy - 20NM North Northeast of Rochester, NY 27 mi23 min W 3.9 G 5.8 76°F 75°F1018.6 hPa67°F
OLCN6 - Olcott Harbor, NY 55 mi63 min E 1.9 G 2.9 78°F 1019 hPa (-0.3)

Wind History for Oswego, NY
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester, Greater Rochester International Airport, NY12 mi69 minENE 510.00 miMostly Cloudy82°F55°F41%1019.3 hPa

Link to 5 minute data for KROC

Wind History from ROC (wind in knots)
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Last 24hrW12W6W9W7NW6CalmW3SW3CalmCalmCalmSW5W5SW3W5W73NW64S6NE94E5NE5
1 day agoSW3W3CalmCalmSW3CalmCalmSW3SW4S5SW6SW9SW10SW9
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2 days agoW13W8W9W8W7SW6W6SW6SW6SW6SW4SW6SW6SW9SW5SW6NW6W10W12W12
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W12W10W8SW8

Tide / Current Tables for
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Tide / Current Tables for
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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
Wind Forecast for Buffalo, NY (19,4,5,8)
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Ground Weather Radar Station Buffalo, 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.