Friday, March24, 2017 L-36.com


Marine Weather and Tides
Plattsburgh, 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 6:45AMSunset 7:13PM Friday March 24, 2017 7:56 PM EDT (23:56 UTC) Moonrise 4:59AMMoonset 3:25PM Illumination 7% Phase: Waning Crescent; Moon at 27 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 Ogdensburg To Saint Regis- 131 Pm Edt Fri Mar 24 2017
This afternoon..Light and variable winds. Rain and sleet with snow likely early...then a chance of rain, sleet and snow late.
Tonight..West winds less than 10 knots. Rain with snow and sleet likely in the evening...then snow likely after midnight.
Saturday..North winds 10 knots or less becoming northeast. A chance of snow in the morning...then a chance of rain in the afternoon.
Saturday night..Northeast winds 5 to 10 knots. Mainly clear.
Sunday..East winds 10 knots or less. Freezing rain likely, a chance of snow and sleet during the day...then rain and freezing rain likely Sunday night.
Monday..East winds 10 knots or less. Rain and freezing rain likely during the day...then a chance of rain and freezing rain Monday night.
Tuesday..East winds less than 10 knots becoming north. A chance of rain and freezing rain during the day...then a chance of rain Tuesday night.

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 241910
afdbtv
area forecast discussion
national weather service burlington vt
310 pm edt Fri mar 24 2017

Synopsis
Widespread snow, rain or mixed precipitation will sag south tonight
while gradually lessening in coverage as today's warm front is
pushed southward by building high pressure to our north. Mainly dry
weather will continue to build across the area on Saturday as
the front continues to settle southward. The front will return
north as a warm front on Sunday into Monday with a return of
widespread rain, snow or mixed precipitation expected.

Near term /through Saturday night/
As of 310 pm edt Friday... The forecast remains on track for
tonight as an east to west oriented warm front across our area
trends stationary, then sags southward as a cold front in
response central canada high pressure tracking eastward. The
drier more stable airmass should act to slowly shunt steadier
light rains/snows/mixed precipitation southward over time with
most areas trending mainly dry after midnight. Some light
additional snow accumulations will be possible in favored areas,
especially nc/ne vt this evening where thermal profiles will
remain cooler. Again, used latest rap output for mid level
thermal profiles which is capturing the current 850-700 mb warm
nose quite nicely and would suggest precipitation north of a
massena-plattsburgh-st. Johnsbury line should largely remain
light snow. Have issued a special weather statement highlighting
additional light snow potential into the evening hours. For
surface temperatures I leaned toward hourly lamp output which
guided overnight minimums. Admittedly these values have some
uncertainty as despite the abundance of clouds the synoptic flow
will trend northerly after midnight and begin to usher in a
slightly colder low level airmass into northern counties on the
southern edge of aforementioned surface high. For now i've
offered values bottoming out in the upper 20s to around 30
north, and in the lower to perhaps mid 30s south.

On Saturday the cooler/drier airmass continues to slowly seep
southward our east-west oriented surface front sinks into central ny
into southern new england. Could still see some lingering light
rains/snows across our far southern counties in the morning as
the surface front stalls to our immediate south and weak ripples
of moisture track west-east along the boundary. All and all
conditions should be trending drier even here however with our
central/northern counties likely seeing partial to perhaps some
full Sun by afternoon. Temperatures should generally range from
35 to 40 north and 40 to 45 east/south.

South edge of high pressure then continues across the area Saturday
night with our former front beginning to lift back slowly north
toward daybreak Sunday. Prior idea of clear to partly cloudy skies
for most of the night still appears reasonable with highest coverage
south. Lows should range from 10 to 20 north, and mid teens to lower
20s south.

Short term /Sunday through Sunday night/
As of 237 pm edt Friday... .Sunday and Sunday night look messy!
hate that we're still dealing with mixed precipitation for the
end of march. Sunday we will have warm air advection and some
light rain as warm front lifts north across our forecast area.

Temperatures will dip early during the overnight Sunday night,
then continue to warm through the overnight with general warm
air advection continuing. Pretty decent slug of precipitation
moves across our forecast area overnight and believe that we'll
mainly have rain with some freezing rain east of the green
mountains where the cold air tends to get stuck the longest.

Have leaned on the warmest guidance that I could find for Sunday
night, the btv4 and blended with consshort. Then I used the
diurnal trend from consshort for temps and a gfs/nam blend for
weather grids from mixed precipitation top down. Amount of qpf
that's expected along with cold temps east of the greens, can't
rule out possibility of winter headlines at some point for
Sunday night into Monday.

Long term /Monday through Thursday/
As of 237 pm edt Friday... Rain will continue through the first
part of the day on Monday as well as warm air advection which
should shut down icing east of the greens by later in the
morning. Monday afternoon and overnight the precipitation will
become more orographically enhanced. Another upper level
shortwave pushes across our area on Tuesday bringing more
chances for precipitation, mainly rain. Precipitation continues
into Tuesday night, mixing with some snow, before shutting down
Wednesday morning. Will finally have a bit of a drying trend for
Wednesday through Thursday night, but more chances for
precipitation towards the end of the week. Still a very
difficult p-type forecast for the beginning of the week with
rain-snow line remaining very close if not right across our
forecast area.

Aviation /19z Friday through Wednesday/
Through 18z Saturday... Ifr/MVFR conditions expected through 12z
as widespread snow and/or mixed precipitation associated with a
stalling warm front traverse the area. Steadier precipitation
will tend to settle south after 05z as front sags southward with
most terminals trending precipitation-free after 12z Saturday.

Winds variable 5 to 15 knots south to southeasterly (easterly at
kmss), trending northerly after midnight. After 12z Saturday
cigs should begin to transition toVFR from north to south as
canadian high pressure begins to nose southward into the area.

Outlook 18z Saturday through Tuesday...

18z Saturday through 12z Sunday... Trending mainlyVFR
/precipitation-free as canadian high pressure noses briefly
southward into the area.

12z Sunday through 12z Tuesday... Widespread mixed precipitation
and/or rain return to the region.

12z Tuesday onward... Light and spotty mixed precipitation
transitions toward a period of steadier rains.

Btv watches/warnings/advisories
Vt... None.

Ny... None.

Synopsis... Jmg
near term... Jmg
short term... Neiles
long term... Neiles
aviation... Jmg


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plattsburgh International Airport , NY3 mi64 minS 35.00 miFog/Mist33°F30°F92%1016.5 hPa
Burlington, Burlington International Airport, VT21 mi63 minSSW 96.00 miLight Rain Fog/Mist35°F32°F89%1016.6 hPa

Wind History from PBG (wind in knots)
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Last 24hrCalmS3S4S4S4S3SW4SE8S4S6S4S4S4S8SE8S10S10S10SE10S7S9S6S5S3
1 day agoNW8
G16
NW7W4SW3W4NW5W3NW3W3W4CalmSW3345
G14
N7N16
G21
N14
G20
NW12
G20
NW10
G17
W8NW7
G14
NW9Calm
2 days agoCalmCalmCalmS4S6CalmNW12
G20
W8
G26
NW13NW17
G26
NW11
G21
NW13
G22
NW14
G25
NW13
G23
NW12
G20
NW18
G29
NW17
G29
NW14
G28
NW17
G27
NW14
G25
NW16
G25
NW9
G24
NW12
G20
NW8
G21

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
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Burlington, VT (19,4,5,8)
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Ground Weather Radar Station Burlington, VT
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weather_mapweather_map weather_map

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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.