Sunday, May28, 2017

Marine Weather and Tides
Plattsburgh, NY

Version 3.4
What's New / NOTES
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 5:11AMSunset 8:31PM Sunday May 28, 2017 8:06 PM EDT (00:06 UTC) Moonrise 8:14AMMoonset 11:27PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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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SLZ024 Saint Lawrence River From Cape Vincent To Saint Regis 148 Pm Edt Sun May 28 2017
This afternoon..West winds less than 10 knots. Partly to mostly Sunny.
Tonight..Southeast winds 10 knots or less. A chance of showers and Thunderstorms. Showers with a chance of Thunderstorms late.
Monday..Southeast winds 5 to 15 knots becoming southwest. Showers with a chance of Thunderstorms in the morning...then showers likely in the afternoon.
Monday night..Southwest winds 5 to 10 knots becoming south. A chance of showers in the evening...then a chance of showers or Thunderstorms overnight.
Tuesday..Southwest winds 5 to 15 knots. A chance of showers and Thunderstorms during the day...then a chance of showers Tuesday night.
Wednesday..Southwest winds 5 to 15 knots. Scattered showers during the day...then a chance of showers Wednesday night.
Thursday..West winds 5 to 15 knots becoming southwest. A chance of showers Thursday night. Winds and waves higher in and near Thunderstorms.

7 Day Forecast for Marine Location Near Plattsburgh, NY
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location: 44.69, -73.44     debug

Area Discussion for - Burlington, VT
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Fxus61 kbtv 282343
area forecast discussion
national weather service burlington vt
743 pm edt Sun may 28 2017

We hope you were able to enjoy the nice day today because
conditions are going to change beginning on memorial day.

Widespread showers will move across the area during the day with
clouds keeping temperatures in the 60s. The showers end Monday
night... But another round of showers and some thunderstorms will
move across the area on Tuesday.

Near term until 6 am Monday morning
As of 739 pm edt Sunday... No significant changes for 730 pm
update. Clouds are moving into the area as expected. 50s looks
good to me for lows tonight with clouds and breezy conditions.

Previous discussion follows.

Still looking at widespread showers to move across the area from
west to east on memorial day. Slower timing of precipitation
onset seems to be the trend with showers developing across
northern new york during the morning hours and across vermont
from late morning into the afternoon. Plenty of clouds will
exist with highs generally in the 60s. Total rainfall on Monday
will generally be in the quarter to half inch range. At this
time it looks like the precipitation will come to an end during
the evening hours. However... The next chance of showers and
possibly a thunderstorm will move back in after midnight Monday
night with the best convective potential coming later on
Tuesday. See discussion below for details. Low temperatures will
generally be in the upper 40s to the mid 50s.

Short term 6 am Monday morning through Tuesday night
As of 310 pm edt Sunday... Tuesday continues to look
potentially active with the threat of numerous showers and
possible thunderstorms as several pieces of shortwave energy
embedded in southwest flow aloft rotate into the region
associated with broad upper level low pressure over central
ontario. Latest GFS and NAM continue to show a modest 850mb
thermal ridge over the area ahead of these features, as well as
the potential for surface instability on order of 500-1000 j kg
and impressive 0-3km and 0-6km shear of 30-40kts and 50-60kts
respectively. Uncertainly does lie in the timing of the
shortwaves moving through as the first looks to track through
central western areas during the morning hours, which could
limit insolational heating and subsequent instability for the
afternoon when the second shortwave moves in. That said, will
continue to highlight likely pops for showers and increase to
chance coverage for thunderstorms, none of which I think will
have the potential to become severe.

Showers and any convective activity diminish going into the
overnight hours with a dry but mostly cloudy and mild night on
tap with lows mainly in the 50s.

Long term Wednesday through Sunday
As of 310 pm edt Sunday... Extended period continues to look
unsettled as a broad mid-upper level trough will be our
controlling weather feature with persistent southwesterly flow
over the region. Extending from northern ontario southward into
the great lakes beginning Wednesday, this feature very slowly
drifts eastward over the northeast through the week and into the
weekend, finally looking to exit into the canadian maritimes
Saturday night into Sunday. Several shortwave troughs rounding
the base of the parent trough will generate chances for
precipitation just about every day, with the best chances for
shower activity generally being during afternoon periods, where
the combination of relatively steep mid-level lapse rates and
surface heating will result in shallow instability and shower
development. Thursday looks to potentially be dry in-between
shortwave troughs, with the best day of the week coming Sunday
as a ridge of high pressure at the surface and aloft builds over
the northeast. Temps during the period look to be very
seasonal, with daytime highs in the mid 60s to low 70s, and
overnight lows in the mid 40s to low 50s.

Aviation 00z Monday through Friday
Through 00z Tuesday... .Vfr conditions most of the period with
only increasing clouds above 5000 feet tonight. Looks like main
area of showers will move in from the west after 12z and thus
the 12z to 18z period will see ceilings and visibilities
lowering into the MVFR category. Winds will be under 10 knots
through 12z then gust to 20 knots from the south and southeast
after 12z. Showers will then be ending before 00z with very slow
improvement to ceilings overnight.


Monday night:VFR. Breezy. Slight chance shra... Slight chance tsra.

Tuesday:VFR MVFR. Breezy. Likely shra... Chance tsra.

Tuesday night:VFR. Chance shra... Slight chance tsra.

Wednesday:VFR. Breezy. Chance shra.

Wednesday night:VFR. Chance shra.

Thursday:VFR. Chance shra.

Thursday night:VFR. Chance shra.

Friday:VFR MVFR. Likely shra.

Winds will be increasing tonight from the south and reach the 15
to 25 knot range after midnight. Thus a lake wind advisory has
been issued. These winds will create rather choppy conditions
and the stronger winds are expected on memorial day and should
continue right into Tuesday.

Btv watches warnings advisories
Vt... None.

Ny... None.

Synopsis... Evenson
near term... Evenson neiles
short term... Lahiff
long term... Lahiff
aviation... Evenson neiles
marine... Evenson

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45166 12 mi36 min SSW 12 G 16 67°F 59°F1 ft54°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plattsburgh International Airport , NY3 mi13 minS 810.00 miFair70°F54°F57%1010.3 hPa
Burlington, Burlington International Airport, VT21 mi12 minS 810.00 miMostly Cloudy72°F53°F52%1011 hPa

Wind History from PBG (wind in knots)
Last 24hrCalmSW3CalmCalmCalmCalmCalmCalmCalmN3SE3SE7SE6SE7SE7SE8SE8SE8SE9SE8SE9SE11S12S8
1 day agoNW5NW5W5NW5W4W5W5CalmCalmW4CalmCalm4SE6E5E7E6SE6E7E8SE7SE6S6S3
2 days agoCalmCalmCalmNE5NE6NW6N5N4NW4N3NW6N7N8N9N10N10N9N13N12N11NW11NW10N9NW10

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
IR Satellite Image from GEOS

GOES Local Image of Northeast    EDIT

Wind Forecast for Burlington, VT (20,4,5,8)
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Ground Weather Radar Station Burlington, VT
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weather_mapweather_map weather_map

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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 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 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.