Wednesday, August23, 2017 L-36.com


Marine Weather and Tides
Oswego, 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 6:19AMSunset 7:57PM Wednesday August 23, 2017 4:14 AM EDT (08:14 UTC) Moonrise 7:17AMMoonset 8:11PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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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LOZ044 Sodus Bay To The Saint Lawrence River Along Lake Ontario- 505 Pm Edt Tue Aug 22 2017
.tornado watch 461 in effect until 9 pm edt this evening...
.small craft advisory in effect through late Wednesday night...
Tonight..Southwest winds 15 to 25 knots becoming west. Scattered showers with isolated Thunderstorms through the early overnight. Waves 2 to 4 feet building to 4 to 7 feet. Waves occasionally around 9 feet.
Wednesday..West winds 15 to 20 knots. A chance of showers in the afternoon. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally around 9 feet.
Wednesday night..West winds 15 to 20 knots becoming north 10 to 15 knots. A chance of showers in the evening. A chance of waterspouts. Waves 3 to 6 feet subsiding to 2 to 4 feet. Waves occasionally around 7 feet.
Thursday..North winds 5 to 10 knots becoming west. A chance of showers in the morning. A chance of waterspouts. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Thursday night..Northwest winds 10 knots or less becoming northeast. Mostly cloudy. Waves 2 feet or less.
Friday..North winds 10 knots or less becoming northwest. Becoming mainly clear. Waves 2 feet or less.
Saturday..Northwest winds 10 knots or less becoming south. Mainly clear...then becoming partly cloudy. Waves 2 feet or less.
Sunday..East winds 10 knots or less. Partly cloudy. Waves 1 foot or less.
LOZ044 Expires:201708230315;;792864 FZUS51 KBUF 222105 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 505 PM EDT Tue Aug 22 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. LOZ044-045-230315-

7 Day Forecast for Marine Location Near Oswego, NY
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location: 43.47, -76.51     debug


Area Discussion for - Buffalo, NY
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Fxus61 kbuf 230611
afdbuf
area forecast discussion
national weather service buffalo ny
211 am edt Wed aug 23 2017

Synopsis
In the wake of a strong cold front... Much cooler and drier air will
build across the region for the rest of the week. A few spotty
showers will remain possible Wednesday and Thursday... Before high
pressure brings dry weather from Friday on through the upcoming
weekend.

Near term through today
As of 2 am... Regional surface analysis shows that the strong cold
front and any lingering showers have exited the area to the east...

with strong drying and subsidence in its wake already promoting a
return to mainly clear skies for the bulk of the area... Save for
our southeastern periphery where some leftover clouds still linger.

These will exit our region during the next hour or so... Leaving
behind fair weather and mainly clear to partly cloudy skies for
the balance of the night. Expect overnight lows to settle into the
mid to upper 50s for the most part... With only the immediate
lakeshores seeing overnight lows around 60 degrees.

The axis of the deep upper level trough that has been driving the
unsettled weather across our region will be making its way into the
lower great lakes through the day on Wednesday. The combination of
diurnal instability being enhanced by falling heights aloft, lake
enhancement due to the increasing sfc-850mb delta-t on the lakes,
which will be increasing to +14c, and dpva as a vorticity lobe
associated with the trough approaches the region may result in the
development of increased clouds and scattered showers in the
afternoon. The fly in the ointment however will be a lack of deep
synoptic moisture. As such, while it should be more cloudy than
sunny in the afternoon, the actual chance of showers will remain
relatively low, around 30 percent. Temperature-wise, the effects of
the cold frontal passage will be quite noticeable, producing a much
more comfortable day across the area, with highs in the low 70s, and
substantially less humidity, as dewpoints will fall into the low 50s.

Short term tonight through Friday
The main feature of note during this period will be an upper level
trough that will be in place across the northeastern u.S. Through
the period. A pair of shortwaves dropping out of canada will
reinforce the troughing across the region, and with 850mb temps
falling to +6c generating a robust lake response, we can expect
fairly widespread cloud cover at least through Thursday. Shower
chances south southeast of the lakes will only run to about 30
percent at best though, as there will be a dearth of moisture aloft.

It start to feel fall-like temperature-wise, with the trough causing
temperatures to fall into the upper 40s to mid 50s both Wednesday
night and Thursday night, with highs only reaching the upper 60s
Thursday.

Expect sunnier skies to end the work week on Friday, as the latest
shortwave passes to the east and surface high pressure begins to
build in from the upper great lakes. The corresponding
subsidence and very dry airmass, along with light winds aloft,
should outweigh lingering lake instability to provide for a
brighter end to the week, though it will remain on the cool
side, with highs in the upper 60s.

Long term Friday night through Tuesday
A pleasant weather pattern is expected over the weekend and heading
into next week. Model consensus (ecmwf ggem gfs) builds surface high
pressure across the region throughout the entire long term period.

This will result in a prolonged stretch of dry weather, with partly
to mostly clear skies. The back edge of an upper level trough will
pivot across the region Saturday night and Sunday. With 850 mb
temperatures falling to around +6c there may be some lake effect
clouds, and the shortwave may spark a stray shower. This said, the
dry air mass will limit the potential for anything more than widely
scattered showers. Otherwise, the cool air mass will result in cool,
almost fall-like temperatures. Over the weekend highs will average
in the lower 70s with overnight lows falling well into the 40s
across the interior valleys. Temperatures will warm slightly early
next week, with highs in in the lower to mid 70s.

Aviation 06z Wednesday through Sunday
As of 06z... The strong cold front and its associated shower activity
have cleared the area. Strong subsidence and drying in its wake have
already brought clearing to a majority of the area... With only some
leftoverVFR cloudiness found along our southeastern periphery. This
will exit our region by 07z... Leaving behind dryVFR weather for the
balance of the night.

On WednesdayVFR conditions will continue to prevail... Albeit with
an increase in cumulus stratocu with diurnal heating of our much
cooler airmass. During the afternoon... Some spotty light showers
will become possible as an upper level trough axis associated weak
secondary cold front pushes into our region... However these are
unlikely to have any impact on aviation operations.

Any scattered light showers from Wednesday afternoon will then tend
to die out with the loss of heating this evening... Leaving behind
mainly dry weather until some scattered light lake effect showers
potentially develop late along and a little inland from the south
shore of lake ontario. Otherwise flight conditions will remain
predominantlyVFR... With some spotty MVFR possible late along and
a little inland from the lakeshores.

Outlook...

Thursday...VFR MVFR with a chance of showers.

Friday through Sunday...VFR.

Marine
As of 2 am... Winds and waves on lake erie have fallen below advisory
levels... Which allowed for the cancellation of the small craft advisory
with the last forecast update.

Westerly winds in the wake of a cold front will have a long enough
fetch on lake ontario to keep waves in the 4 to 7 foot range on the
eastern half of the lake through the day on Wednesday, warranting a
continuation of SCA headlines into Wednesday evening, at which point
winds should diminish as the low pressure system responsible for the
winds pulls away from the region and high pressure begins to build
in from the upper great lakes. Thereafter, fairly tranquil
conditions, with waves 2 feet or less, will be found on the lakes
through the rest of the work-week, as high pressure slides across
the region.

Tides coastal flooding
Westerly winds will freshen in the wake of a cold frontal
passage tonight and will remain strong through Wednesday. The
increase in winds and wave action will bring and increase in
shoreline erosion and lakeshore flooding to the east half of
lake ontario when combined with the already high lake levels.

The static lake levels have dropped since late spring and early
summer, so the impacts of this event are not likely to be as
significant as earlier in the season, but still enough to
warrant a lakeshore flood warning.

Buf watches warnings advisories
Ny... Lakeshore flood warning until 11 pm edt this evening for
nyz004>007.

Beach hazards statement from 6 am edt this morning through
this evening for nyz003.

Beach hazards statement from 6 am edt this morning through
this afternoon for nyz002.

Marine... Small craft advisory until 6 am edt Thursday for loz042>045.

Synopsis... Jjr
near term... Jjr wood
short term... Wood
long term... Apffel
aviation... Jjr
marine... Jjr wood
tides coastal flooding... Hitchcock wood


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OSGN6 - 9052030 - Oswego, NY 0 mi44 min W 20 G 28 69°F 1008.3 hPa57°F
45135 - Prince Edward Pt 29 mi74 min W 25 G 27 68°F 71°F6 ft1006.9 hPa (+1.4)
45012 - Lake Ontario Buoy - 20NM North Northeast of Rochester, NY 49 mi84 min W 23 G 27 68°F 71°F6 ft1007.3 hPa (+1.6)
RPRN6 - Rochester, NY 59 mi74 min WSW 9.9 G 12 64°F 1010.2 hPa (+1.7)
RCRN6 - 9052058 - Rochester, NY 61 mi44 min 61°F 1009.7 hPa

Wind History for Oswego, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fulton, Oswego County Airport, NY10 mi20 minSSW 610.00 miA Few Clouds61°F54°F78%1008.5 hPa

Wind History from FZY (wind in knots)
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Last 24hrSE33SE5SE4SE3S8S13
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S8S7S8W14W8NW9NW11W9W6
1 day agoCalmCalmSE3CalmCalm3S9S7SW54S3SW3Calm4CalmSW3CalmCalmCalmCalmS4CalmCalmSE3
2 days agoNW6W6NW4CalmSW4W8W7SW4SW6NW84W7W9NW10W8W4SW3CalmCalmCalmCalmCalm3Calm

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
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Buffalo, NY (4,6,7,8)
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Ground Weather Radar Station Montague, 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.