Monday, September25, 2017 L-36.com


Marine Weather and Tides
Irondequoit, NY

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:00AMSunset 7:02PM Monday September 25, 2017 8:07 PM EDT (00:07 UTC) Moonrise 11:18AMMoonset 9:23PM Illumination 28% Phase: Waxing Crescent; Moon at 5 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- 731 Pm Edt Mon Sep 25 2017
Tonight..East winds less than 10 knots becoming southeast. Mainly clear this evening...then becoming partly cloudy. Waves 1 foot or less.
Tuesday..South winds less than 10 knots. Mostly Sunny. Waves 1 foot or less.
Tuesday night..East winds less than 10 knots becoming south. Mainly clear in the evening...then becoming partly cloudy. Waves 1 foot or less.
Wednesday..South winds 10 knots or less becoming west and increasing to 15 to 20 knots in the afternoon. A chance of showers in the afternoon. Waves 2 feet or less.
Wednesday night..West winds 15 to 20 knots becoming northwest. Partly to mostly cloudy. Waves 3 to 6 feet. Waves occasionally around 7 feet.
Thursday..Northwest winds 5 to 15 knots. Becoming mainly clear. Waves 3 to 5 feet subsiding to 1 to 3 feet. Waves occasionally around 6 feet.
Friday..West winds 5 to 15 knots becoming north. A chance of showers. Waves 1 to 3 feet.
Saturday..North winds 5 to 15 knots becoming west less than 10 knots. A chance of showers during the day. Waves 1 to 3 feet. The water temperature off rochester is 68 degrees.
LOZ043 Expires:201709260300;;931967 FZUS51 KBUF 252338 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 731 PM EDT Mon Sep 25 2017 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. LOZ043-044-260300-

7 Day Forecast for Marine Location Near Irondequoit, NY
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location: 43.27, -77.6     debug


Area Discussion for - Buffalo, NY
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Fxus61 kbuf 252347
afdbuf
area forecast discussion
national weather service buffalo ny
747 pm edt Mon sep 25 2017

Synopsis
High pressure will keep dry weather and midsummerlike warmth across
our region through most of Wednesday. An approaching cold front may
finally bring a chance of a few light showers late Wednesday and
Wednesday night... With much cooler temperatures then following for
Thursday right on through next weekend.

Near term through Tuesday
Just a few patches of high level clouds passing across the region
this evening from the south.

Tonight... High pressure will remain in place, while thin high cirrus
continues circulate across our region aloft. Much like last
night... Nocturnal cooling of our moist boundary layer and light
winds should result in areas of valley fog redeveloping across the
southern tier... While patchier lighter fog develops elsewhere.

Otherwise it will be a very mild night by late september
standards... With lows ranging from the lower 60s across the north
country and interior portions of the southern tier to the mid and
upper 60s elsewhere.

On Tuesday... Hurricane maria will be slowly moving northward offshore
of the carolina coastline... While a modest midlevel trough presses
from the northern plains into the upper mississippi valley. Meanwhile
our region will continue to lie in the squeeze play ridging separating
these two systems... Albeit with the main upper ridge axis sliding a
bit to our south and weakening slightly. With a little bit more in
the way of low level moisture available to work with and strong
heating of our very warm and humid airmass again expected... It is not
entirely out of the question that (as suggested by some guidance) we
could pop an isolated afternoon shower or two across interior sections
of far western new york... Though with the mid levels remaining very
dry and possibly capped... Will continue to advertise a dry forecast
for now. Otherwise it will be another mostly sunny and unseasonably
warm to hot day with widespread highs in the 85-90 range again
anticipated... With the warmest readings most likely to lie from the
genesee valley eastward... Where supporting 850 mb temps will be the
warmest. Record highs for september 26th are 87f at buffalo
(1959)... 89f at rochester (1900)... And 82f at watertown
(1970)... With the watertown record currently appearing in serious
jeopardy and the records at buffalo rochester likely to at least be
very closely approached.

Short term Tuesday night through Thursday night
Tuesday night and Wednesday will be the last of the recent summer-
like warmth for the region. In addition, some areas will see their
first chance for rain in about 2 weeks arriving Wednesday with one
or two prefrontal frontal troughs and or afternoon lake breeze
boundaries. The front itself will likely be a dry frontal passage
for western ny. Expect it to ease into the region Wednesday evening
with scattered convection well ahead of it over central ny.

Thursday should be dry but with ample strato-cumulus under an
upslope northwest flow. It's possible a few sites might see a
sprinkle or two, but the main story will be the ~20f drop in daytime
high temperatures. While it may feel cool, the highs, mostly
in the 60s, will actually get us back our normal climatology.

Thursday night should be similarly dry with a continued drop in
temperatures resulting in lows in the 40s overnight. This will
coincide with a surface ridge dropping from the upper great lakes
region into western ny overnight.

Long term Friday through Monday
A sharp longwave trough axis and secondary surface cold front will
drop across our region Friday or Friday night as a more progressive
pattern develops over the conus. This will bring a chance of rain
showers and another shot of cold air advection. 850 mb temperatures
are forecast to drop to near zero c behind the secondary cold front
with a north to northwesterly flow over the lakes. Expect this
airmass to be sufficiently cold enough to contribute to some lake
driven rain showers behind the cold front Friday night into
Saturday.

High temperatures will generally be in the lower to mid 60s Friday
with even cooler temperatures expected Saturday, with highs
struggling to get to 60 degrees. Overnight lows will generally
be in the 40s, with the typically cooler interior valleys and
north country dipping into the 30s by Saturday night.

High pressure will again build into the region late in the weekend
and into early next week. A warming trend is expected during this
time which could last into at least mid next week, with
temperatures warming back to at least 5 to 10 degrees above
normal, but not quite to the extent we are currently experiencing.

Aviation 00z Tuesday through Saturday
Though mainlyVFR flight conditions are present to start the 00z
tafs, valley fog will likely again spill across the kjhw terminal
tonight, with ifr or lower flight conditions. Ifr flight conditions
in fog are also possible tonight at kiag and kart within the muggy
airmass. MVFR flight conditions in patchy fog will be possible as
well elsewhere with higher dewpoints tonight supporting again
widespread coverage of MVFR vsbys.

Winds will remain light through the TAF period.

Outlook...

Tuesday night...VFR... Except localized ifr MVFR conditions in
developing southern tier valley fog overnight.

Wednesday... MainlyVFR with a chance of showers in the afternoon.

Thursday through Saturday... MainlyVFR... With a chance of showers
Friday and Saturday.

Marine
High pressure will remain in place across the lower great lakes
right through Wednesday morning. This will provide a long stretch of
very light winds and flat wave action with ideal boating conditions,
but not much wind for sailing.

A cold front will cross the region late Wednesday. Northwest winds
will increase in the wake of the cold front, and may bring a round
of advisory-worthy winds and waves to lakes erie and ontario late
Wednesday through early Thursday.

Buf watches warnings advisories
Ny... None.

Marine... None.

Synopsis... Hitchcock jjr
near term... Jjr thomas
short term... Zaff
long term... Tma
aviation... Thomas
marine... Hitchcock jjr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RPRN6 - Rochester, NY 0 mi67 min Calm G 1.9 75°F 1017.6 hPa (-0.7)
RCRN6 - 9052058 - Rochester, NY 1 mi49 min 73°F 1016.8 hPa
45012 - Lake Ontario Buoy - 20NM North Northeast of Rochester, NY 26 mi77 min ENE 1.9 G 1.9 74°F 75°F1016.7 hPa (-0.8)
OSGN6 - 9052030 - Oswego, NY 59 mi49 min SE 1 G 1.9 76°F 1016.6 hPa69°F

Wind History for Oswego, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester, Greater Rochester International Airport, NY11 mi13 minE 410.00 miMostly Cloudy77°F66°F69%1016.9 hPa

Wind History from ROC (wind in knots)
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Last 24hrCalmCalmCalmW3SW4SW4SW4SW3SW3SW4SW4SW3SW4SW5W4SW3SW4CalmCalmNE3E5NE11NE7NE6
1 day agoSW3SW4W5SW5SW3SW5SW4W3W3SW5SW4SW5SW5SW6W4CalmCalm3N6NW53NE6N6N4
2 days ago--CalmCalmCalmSW4SW3SW5SW4W5SW6SW5W4SW5SW8SW5W3SW5W65NW9W8W5W5W4

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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Weather Map
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IR Satellite Image from GEOS
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GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Buffalo, NY (20,4,5,8)
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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 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.