Thursday, April26, 2018 L-36.com


Marine Weather and Tides
Greece, NY

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:07AMSunset 8:08PM Thursday April 26, 2018 7:20 AM EDT (11:20 UTC) Moonrise 3:32PMMoonset 3:49AM Illumination 85% Phase: Waxing Gibbous; Moon at 11 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- 1024 Pm Edt Wed Apr 25 2018
.small craft advisory in effect through Thursday evening...
Rest of tonight..West winds 15 to 20 knots. A chance of showers late this evening, then showers likely after midnight. Waves 2 feet or less building to 3 to 6 feet. Waves occasionally around 7 feet.
Thursday..West winds 15 to 25 knots. Showers likely in the morning. Waves 3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to 6 feet. Waves occasionally around 9 feet.
Thursday night..West winds 5 to 15 knots becoming southwest. Mainly clear. Waves 2 to 4 feet subsiding to 1 foot or less.
Friday..South winds 10 knots or less becoming northeast. A chance of showers in the afternoon. Waves 1 foot or less.
Friday night..East winds 10 knots or less becoming west 10 to 15 knots. A chance of showers. Waves 2 feet or less.
Saturday..West winds 10 to 15 knots becoming northwest. A chance of rain showers. Waves 1 to 3 feet building to 2 to 4 feet.
Sunday..Northwest winds 10 to 15 knots becoming west. A chance of rain showers. Waves 3 to 5 feet subsiding to 2 to 4 feet. Waves occasionally around 6 feet.
Monday..West winds 10 to 15 knots becoming southwest. Mainly clear. Waves 2 feet or less. The water temperature off rochester is 39 degrees.
LOZ043 Expires:201804260900;;039008 FZUS51 KBUF 260224 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 1024 PM EDT Wed Apr 25 2018 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. LOZ043-260900-

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 260807
afdbuf
area forecast discussion
national weather service buffalo ny
407 am edt Thu apr 26 2018

Synopsis
Low pressure will move northeast from new england into the
canadian maritimes today. Lingering showers behind this system
will give way to drier weather from west to east today as high
pressure and drier air builds across the lower great lakes. Two
more weak systems will then bring additional periods of rain
showers Friday and Saturday.

Near term through tonight
The main area of low pressure across new england will exit
northeast across the canadian maritimes today, as high pressure
and much drier air builds eastward from the ohio valley upper
great lakes into western new york. This will result in lingering
showers diminishing from west to east through the course of the
day, with the activity hanging on the longest east of lake
ontario due to the closer proximity of the low and lingering
upslope flow.

Following the departure of the showers, increasing subsidence and
drying should lead to partly to mostly sunny skies developing across
areas south of lake ontario during the late morning and afternoon
hours, with some breaks of Sun reaching the north country by late in
the day. Otherwise, a lingering pressure gradient will keep breezy
conditions in place, with afternoon highs expected to mostly range
through the 50s.

Dry weather is expected tonight, as there will be a brief break
before the next system arrives. Skies may briefly clear out and
temperatures will fall into the mid 30s to lower 40s.

Short term Friday through Sunday night
Two areas of weak low pressure will approach the northeast Friday,
the first one will track across the great lakes with an associated
cold front. The other, which is deeper of the two, will track from
southern va to southern new england. Mid-high level clouds will
increase from the west and south Friday. Exiting high pressure
and dry air will keep the region mostly dry. The one exception
will be across the southern tier and finger lakes as rain brushes
the eastern side of the forecast area. As the cold front nears from
the west Friday, rain showers will form ahead of it. A shortwave
trough will also approach from the ohio valley and showers will
enter western ny Friday evening. Rain showers will move to the north-
northeast, near the eastern lake ontario shoreline. Temperatures
will drop into the mid to upper 30s to low 40s Friday night.

The great lakes low and the coastal low will merge near, if not
overhead Saturday. Rain is expected to blossom as a cold front moves
through the eastern great lakes. An anomalously upper-level trough
will spin overhead through the end of the weekend. Cold air will
advect southward and multiple rounds of precipitation are through
Sunday night. Cold air advection, wrap-around moisture and lake
enhancement will lead to rain showers changing to snow showers late
Saturday night and into Sunday as temperatures drop to the
u20s l30s. Rain and snow showers will taper off into Sunday night.

Long term Monday through Wednesday
The anomalously cold upper-level trough will exit the region into
the canadian maritimes late Monday. Meanwhile, building 500mb
heights and an expansive surface high over the tennessee valley will
become centered along the carolinas which will initiate a
strong warming trend across our region. The surface high along
the carolinas will pump up a much warmer air mass into the ohio
valley and great lakes which will send high temperatures soaring
some +15- 20f degrees above climo by Wednesday with mid- upper
70s, even a few 80f readings. Late in the week, latest guidance
shows a potent shortwave dropping southeast out of canada across
the great lakes while several waves ride northeast along a
frontal boundary to our west. This will likely bring increasing
chances for showers Thursday and Friday. Otherwise, look for
relatively quite weather the first half of the week with dry
conditions and more like summer.

Aviation 08z Thursday through Monday
Low pressure over new england will lift into the canadian maritimes
today. In its wake, high pressure and much drier air will build
eastward into the region.

Wraparound moisture behind the low will maintain some lingering
showers and widespread ifr to MVFR ceilings across the region early
this morning, with the lowest conditions found immediately downwind
of the lakes and also across the higher terrain.

Conditions will gradually improve through the day today as the area
of high pressure builds eastward into our region and brings an end
to the showers followed by a west to east clearing trend, which will
result in flight conditions improving toVFR in most areas by the
end of the day. The one possible exception to this will be the
higher terrain east of lake ontario, where some MVFR CIGS may linger
through sunset.

Outlook...

tonight...VFR.

Friday and Saturday... MainlyVFR with a chance of showers.

Sunday... MainlyVFR with a chance of rain or snow showers east
of lake ontario.

Monday...VFR.

Marine
Surface low pressure over new england with lift into the canadian
maritimes today, with westerly winds freshening in its wake. This
will lead to sufficient waves and winds on the southern and eastern
shores of lake ontario for small craft advisories into tonight.

Lighter winds and waves are then expected through Friday, with waves
perhaps building again under westerly flow on Saturday.

Buf watches warnings advisories
Ny... None.

Marine... Small craft advisory until 8 pm edt this evening for loz043.

Small craft advisory until 5 pm edt this afternoon for
loz042.

Small craft advisory until 11 pm edt this evening for
loz044-045.

Synopsis... Tma
near term... Tma
short term... Hsk
long term... Ar
aviation... Tma
marine... Tma


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCRN6 - 9052058 - Rochester, NY 3 mi50 min 40°F 1007.9 hPa
RPRN6 - Rochester, NY 5 mi80 min W 13 G 19 40°F 1008.1 hPa (+0.6)
OLCN6 - Olcott Harbor, NY 55 mi80 min Calm G 0 39°F 1009.5 hPa (+0.7)

Wind History for Oswego, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester, Greater Rochester International Airport, NY12 mi26 minW 10 G 216.00 miLight Drizzle Fog/Mist40°F37°F93%1008.3 hPa

Wind History from ROC (wind in knots)
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Last 24hrE8SE5SE8SE7S4SE3CalmNW4W4NW6NW7NW7W8W9W12W11W10W12W17
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1 day agoSW7SW9
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S123SW10S12SW9W3W4NW9W3CalmN4NE3E5SE6SE9SE9E9E7E7
2 days agoCalmCalmCalm45SE6--5NE15N12NE11N8NE6E3S5S9S9SW6S6S9S9S8S7S5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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wmap_A
GOES Local Image of Northeast    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Buffalo, NY (7,2,3,4)
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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 numerious 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.