Thursday, March30, 2017

Marine Weather and Tides
Champlain, NY

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:34AMSunset 7:21PM Thursday March 30, 2017 12:37 PM EDT (16:37 UTC) Moonrise 8:24AMMoonset 10:33PM Illumination 11% 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 1013 Am Edt Thu Mar 30 2017
This afternoon..Northeast winds 5 to 10 knots. Partly Sunny.
Tonight..Northeast winds 5 to 10 knots becoming east. A chance of snow late in the evening. Snow after midnight.
Friday..Northeast winds 10 to 15 knots becoming east. Snow and freezing rain in the morning...then rain in the afternoon.
Friday night..East winds 10 to 15 knots becoming northeast. Areas of fog. Rain in the evening...then rain and snow overnight.
Saturday..Northeast winds 10 knots or less becoming west. Areas of fog during the day. Rain and snow showers likely during the day.
Sunday..Northwest winds 10 knots or less becoming northeast. Partly cloudy.
Monday..Northeast winds 10 knots or less becoming east. A chance of rain showers Monday night.

7 Day Forecast for Marine Location Near Champlain, NY
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location: 44.97, -73.44     debug

Area Discussion for - Burlington, VT
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Fxus61 kbtv 301136
area forecast discussion
national weather service burlington vt
736 am edt Thu mar 30 2017

High pressure will build across the area today with sunny to partly
sunny skies and seasonable early spring temperatures. Low pressure
will approach and pass south of the area on Friday into Saturday
with a widespread wet accumulating snow expected. The snow may mix
with or change to rain in lower elevations on Friday. Dry weather
returns by Sunday into Monday before additional rains and snows
arrive by the middle of next week.

Near term /through tonight/
As of 718 am edt Thursday... Forecast remains on track for today
with only noise-level tweaks to hourly temperatures/dewpoints
over the next few hours to match observational trends. Have a
great day.

Prior discussion from 437 am edt Thursday...

nice weather expected across the area today as surface high
pressure bridges across the northeast. Sunny to partly sunny
skies are expected for most of the day under light northerly
breezes as high temperatures top out in the upper 30s to lower
40s, perhaps a few mid 40s in milder lower elevation locales.

High clouds will begin to move into the southwestern portions of
the forecast area toward late afternoon/early evening, and
thicken/lower across the entire area tonight in advance of our
next weather maker. Light snow will move into our far south and
southwestern counties late with minor accumulations of a dusting
to 2 inches possible, but the bulk of the precipitation for the
area should hold off until Friday. Lows tonight mainly in the

Short term /Friday through Saturday/
As of 437 am edt Thursday... The system referenced above will
take the form of surface low pressure and upper closed energy
tracking east from the ohio valley states tonight into Friday
and into the mid atlantic and offshore environs by Friday
night/Saturday with widespread precipitation expected. Thermal
profiles continue to suggest p-type (rain/snow) will be governed
heavily by boundary layer temperatures, quite typical during
early spring events. Some brief mix with sleet may be possible
across southern counties per mid level warm nose shown in most
recent NAM output. Given this model has a more northward surface
low track and is really the only output showing this have
omitted any reference to sleet at this point. In terms of timing
and amounts, the latest information suggests snow will arrive
into southwestern counties toward Friday morning and advance
northeast through the remainder of the forecast area during the
day on Friday into Friday night. A possible mix with or
changeover to a cold rain will be possible in lower elevations
below 1000 feet during the daylight hours. Complicating the
scenario will be how ground temperatures govern daytime
accumulations in these lower, valley sites. Climo would suggest
only a modest impact to roads in most areas through the day on
Friday with greater impacts expected Friday evening/night in
response to loss of insolation and slightly cooler temperatures.

Put considerable work into snow ratio output, leaning on the
lower side of guidance in the 8-10:1 range in lower elevations
and staggering progressively upward into the 10-13:1 range in
the higher terrain. QPF from Friday into Saturday morning is a
blended output of nam/gfs/consensus model/wpc blend with a
slight downward adjustment given the rather high output as
suggested by the nam. This would support amounts ranging from
one third to two thirds of an inch north and two thirds to an
inch south. Snowfall output suggests 30 hour totals from 2-4
inches in the champlain/st lawrence valley with only minor
impacts, 3 to 7 inches in much of the northern higher terrain
and lower elevations of southern vt, and 6 to 12 inches across
higher elevations of essex county, ny and the southern green
mountains of rutland/windsor counties of vt. In these latter
areas, winter storm warnings and/or winter weather advisories
have been issued accordingly where difficult to locally
hazardous travel is expected. Given the wet nature of the snow,
some modest threat to trees/powerlines will also be possible
with the highest threat occurring across southern higher
terrain. Please see our winter weather page at

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Franklin County State Airport, VT18 mi43 minNNE 710.00 miFair35°F19°F55%1026.1 hPa
Plattsburgh International Airport , NY22 mi45 minNE 1110.00 miFair36°F18°F48%1025.9 hPa

Wind History from FSO (wind in knots)
Last 24hrNW4NW6NW4NW5NW4NW3CalmN4N3N4N6N5NW3N4N5N5N5CalmCalmN4N10N9
1 day agoNW3NW4N4N4N5N4CalmN3N4CalmCalmCalmN3N3CalmNW3CalmN3CalmCalmNW3CalmCalmNW6
2 days agoS4S4S4S6S6S5S5S5S7S5S4S3S3S4S4S4S5S4S3CalmCalmS4CalmNW3

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 (12,3,4,5)
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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.