Saturday, December16, 2017 L-36.com


Marine Weather and Tides
Chateaugay, 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 7:28AMSunset 4:15PM Saturday December 16, 2017 7:19 PM EST (00:19 UTC) Moonrise 6:39AMMoonset 4:33PM Illumination 2% Phase: Waning Crescent; Moon at 28 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 1242 Pm Est Sat Dec 16 2017
This afternoon..Northwest winds 5 to 10 knots. Mostly Sunny.
Tonight..Northwest winds 10 knots or less becoming west. Mainly clear.
Sunday..West winds 5 to 10 knots becoming light and variable. Partly to mostly Sunny.
Sunday night..Northeast winds less than 10 knots. A chance of snow showers.
Monday..Northeast winds 10 knots or less becoming south 10 to 15 knots. A chance of snow showers during the day, then snow and rain showers likely Monday night.
Tuesday..Southwest winds 15 to 20 knots becoming west 10 to 15 knots. Rain and snow showers likely.
Wednesday..West winds 5 to 15 knots becoming northwest. A chance of snow showers.

7 Day Forecast for Marine Location Near Chateaugay, NY
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location: 45.41, -73.91     debug


Area Discussion for - Burlington, VT
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Fxus61 kbtv 162327
afdbtv
area forecast discussion
national weather service burlington vt
627 pm est Sat dec 16 2017

Synopsis
A weak upper level disturbance will move east of vermont this
evening, allowing for clearing skies as high pressure builds in
from northern ontario. It will be a cold night with diminishing
winds. Low temperatures are generally expected in the single
digits, and locally below zero across the northern adirondacks.

Quiet and seasonably cold weather is expected Sunday. A weak
warm front will bring light snow late Sunday night into Monday.

Temperatures will briefly moderate above freezing on Tuesday,
before another cold front brings a return of seasonably cold
conditions mid to late in the week.

Near term through Sunday night
As of 626 pm est Saturday... Previous forecast in good shape but
based on latest satellite trends did opt to update sky cover
through the overnight and early am hours. Increasingly blocked
flow combined with lingering low level moisture behind an
exiting trough continues to produce some low level stratus
across northern vermont with a few isolated snow showers noted
at kmvl and kefk. Expect these clouds to persist through at
least midnight as far south as kmpv, before retreating northward
through the remainder of the night. Could impact low temps
across northern areas, but based on current readings have left
mins alone for now.

Previous discussion...

in the wake of the trough, a nwly wind shift (10 mph with gusts
to near 20 mph next 1-3 hrs) and a reinforcing shot of arctic
air is moving in with lower dewpoints (generally in the single
digits) in the st. Lawrence valley and points upstream across
ontario. Will see clearing skies from wnw-ese with dry air
advection, and as Sun sets and pbl stabilizes this eve. Will see
sfc anticyclone across NRN ontario gradually build esewd
overnight with diminishing NW winds as well. Should set up good
radiational cooling overnight, with lows mainly in the single
digits above zero, except below zero readings across NRN ny with
winds diminishing a bit sooner. Have gone with +7f at btv, and
-7f at slk.

Sunday will be seasonably cold but dry with sfc anticyclone
cresting across NRN ny and vt. Pops nil with highs in the upper
teens to lower 20s. Should see partly to mostly sunny
conditions.

For Sunday night, a subtle warm frontal feature and weak sfc
reflection across lake huron will lift newd toward the north
country. Will see increasing clouds during the night, with a
chance of light snow developing during the pre-dawn hrs across
the NRN adirondacks into WRN vt. May see a light coating of snow
(d-0.5") in spots across NRN ny and rutland county by sunrise,
but limited available moisture and modest forcing for ascent
should keep snowfall rates light. Temperatures will drop early
in the evening, but then level off or slowly rise later with
developing light s-se winds. Lows Sunday night generally 5-15f,
except near zero across far nern vt with later arrival of cloud
cover.

Short term Monday through Monday night
As of 249 pm est Saturday... Light warm air advection snow showers will
spread through the area Monday as a warm front moves northeastward
through new england. In the upper levels, confluent zonal flow
and a weakening wave moving eastward will provide some weak
synoptic ascent, however moisture will be limited and total snow
accumulations will remain under an inch from Sunday through
Monday. As the upper- level forcing departs to the east, snow
showers will generally taper off Monday afternoon into Monday
evening in valley locations and any remaining snow will become
more orographically focused. Daytime highs Monday will be
considerably warmer than Sunday, topping out in the upper 20s to
around 30 after the passage of the warm front. Monday night
temperatures will dip down a few degrees, however overnight lows
will be moderated by fairly extensive cloud cover. After
tapering off Monday evening, coverage of snow showers will once
again start to increase Monday night as the next upper- level
disturbance approaches new england from the west.

Long term Tuesday through Saturday
As of 249 pm est Saturday... .As a longwave trough digs over the
northeast portion of the united states, better dynamics will
support more widespread precipitation Tuesday. What will start
off Monday night as light snow showers will transition to rain
showers Tuesday morning over lower elevations of the north
country and the champlain valley. By early Tuesday afternoon,
most of the forecast area will have transitioned to rain as
warmer air continues to pump in from the southwest. The upper-
level trough axis and a surface cold front will pass through new
england Tuesday night, ending the brief warm up. Colder
northwesterly flow will cool the column back below freezing and
any remaining rain showers will become all snow by early
Wednesday morning. As the more favorable dynamics clear to the
east, precipitation will become less widespread by Wednesday
morning.

Wednesday and Thursday will mark a return to cooler more seasonal
temperatures and will be considerably drier than the start of the
week, although some light snow showers can't be ruled out as weak
disturbances pass overhead.

Attention then shifts to the potential for the next system to
approach the area towards the end of the work week early weekend.

Models continue to spin up a surface low over the great lakes region
Friday supported aloft by energy ejected out of a shortwave trough
over the southwestern united states. This system is still well out
into the future and much could change over the next week. However,
confidence is increasing that next weekend could feature fairly
active weather over the eastern portion of the country.

Aviation 00z Sunday through Thursday
Through 00z Monday... MainlyVFR conditions expected through the
next 24 hours with sct-bkn clouds around mountain top levels
across northern vermont to continue through the overnight hours.

Brief period of MVFR ceilings is possible at kmpv through
midnight per upstream obs at kefk and kmvl, but beyond that all
other terminals should remainVFR. Light winds are expected
through the period as well.

Outlook...

Sunday night:VFR. Slight chance sn.

Monday: mainly MVFR, with areasVFR possible. Chance sn.

Monday night: mainly MVFR, with local ifr possible. Chance shsn,
slight chance sn.

Tuesday: mainly MVFR, with localVFR possible. Likely shra,
chance shsn.

Tuesday night: mainlyVFR, with areas MVFR possible. Chance shsn,
chance shra.

Wednesday: mainlyVFR, with local MVFR possible. Chance shsn.

Wednesday night: mainly MVFR, with areasVFR possible. No sig wx.

Thursday: mainlyVFR, with areas MVFR possible. Slight chance
shsn.

Btv watches warnings advisories
Vt... None.

Ny... None.

Synopsis... Banacos
near term... Banacos lahiff
short term... Rsd
long term... Rsd
aviation... Lahiff


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OBGN6 - 8311030 - Ogdensburg, NY 97 mi49 min 15°F 1020.2 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Franklin County State Airport, VT54 mi24 minN 010.00 miOvercast16°F9°F75%1019.3 hPa

Wind History from FSO (wind in knots)
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Last 24hrS5S5S5S6S5S4S3SE3SE3S3S6S5S3CalmW3CalmCalmCalmNW5N5CalmCalmCalmW3
1 day agoW4CalmSW4CalmW4W3W3W4CalmCalmCalmCalmCalmCalmCalmSE3S5S6S7S4S4S4S6S5
2 days agoW6W9
G16
W5W8W4W3W5W6W8W5W4NW3W3W6W5NW8
G14
NW5NW5W7NW4W4NW6W3W4

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.