Friday, October30, 2020
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Marine Weather and Tides
Champlain, NY

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:28AMSunset 5:46PM Friday October 30, 2020 3:27 PM EDT (19:27 UTC) Moonrise 5:43PMMoonset 6:15AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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 Expires:202010302115;;078561 Fzus61 Kbuf 301738 Glfsl Forecast For The Saint Lawrence River Including The Thousand Islands Region National Weather Service Buffalo Ny 138 Pm Edt Fri Oct 30 2020 Slz022-024-302115- Saint Lawrence River From Cape Vincent To Saint Regis 138 Pm Edt Fri Oct 30 2020
This afternoon..Northeast winds 5 to 10 knots. Becoming mostly Sunny.
Tonight..North winds less than 10 knots. Clear.
Saturday..Light and variable winds becoming southwest 5 to 10 knots. Sunny.
Saturday night..South winds 5 to 15 knots. Mainly clear in the evening, then becoming partly cloudy.
Sunday..South winds 15 to 20 knots becoming west 10 to 15 knots. Rain during the day, then rain showers with a chance of snow showers Sunday night.
Monday..Northwest winds 10 to 15 knots becoming west. A chance of snow showers.
Tuesday..Northwest winds 5 to 15 knots becoming south. Partly cloudy.


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 301917 AFDBTV

Area Forecast Discussion National Weather Service Burlington VT 317 PM EDT Fri Oct 30 2020

SYNOPSIS. Clear and cold conditions are expected overnight as strong surface high pressure builds into the North Country. This will continue for Saturday, before winds shift to the south Saturday Night and becoming breezy on Sunday with warmer temperatures. A sharp cold front will produce more showers on Sunday afternoon into evening, but as colder air develops, rain will change to snow overnight Sunday into Monday. Cold and blustery conditions are likely on Monday with snow showers.

NEAR TERM /THROUGH SATURDAY NIGHT/. As of 316 PM EDT Friday . Sfc analysis places 1028mb high pres over WI this aftn, with cyclonic northwest flow prevailing acrs our fa and decreasing clouds. As strong sfc high pres continues to build overhead by 06z tonight, expect clear skies and light winds under 5 knots to develop. This combined with 925mb temps in the -5c to -6c range will support the coldest night of the early winter season acrs most of our fa. The question remains just how cold we get, guidance still supporting values near 0F at SLK, but thinking this maybe too cold, given open water, some gradient, and no snow pack. So have mention lows generally upper single digits NEK/SLK to upper teens/lower 20s near the warmer Lake Champlain waters. Speaking of Lake Champlain, expect some low lvl lake clouds to develop, especially as aligned northerly winds combined with cold 925mb to 850mb temps, to produce moderate instability this evening. Atmosphere aloft remains too dry, I believe to produce any flurries but something to monitor. Also, some very patchy freezing fog is possible at SLK near sunrise on Sat AM, due to calm winds and near saturated bl conditions.

Saturday, will start off chilly, but with mostly sunny skies temps will warm back into the upper 30s to mid 40s most locations. 925mb to 850mb winds quickly shift to the southwest and increase at 30 to 40 knots by Sat night, resulting in strong llvl waa overnight. Expecting a large spread in temps with values warming aft midnight, especially as better mixing develops. Lows upper teens to lower 30s, but warming into the 30s by 12z Sunday. As pres gradient increases, a lake wind advisory is likely after midnight toward sunrise on Sunday for gusts 25 to 30 knots.

SHORT TERM /SUNDAY THROUGH MONDAY/. As of 345 AM EDT Friday . Turning warmer but unsettled for the last half of the weekend as an upper trough moves across the Great Lakes. This trough will eventually swing a series of frontal boundaries across the North Country, with the first cold front to move through late Sunday afternoon-Sunday evening. A strong low level jet will exist out ahead of this front, and this increasing south-southwest flow will result in warming temperatures. Hence don't anticipate Saturday night will be as cold as Friday night, with lows in the 20s to around 30. South winds continue to increase Sunday, especially in the Champlain Valley due to channeling effects. Temperatures will warm in to the upper 40s to lower 50s before the front makes its move across the region. Showers will spread from west to east during the afternoon into the evening as the front passes through. Winds turn to the west behind the front, and while there may be a brief break, additional scattered showers will develop as a secondary front crosses the region. Colder air moving in post-front will turn rain showers over to snow, with some lake enhancement east of Lake Ontario into the Adirondacks. Minor snow accumulation will be possible in the higher terrain. Overnight lows will once again be in the 20s to around 30.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/. As of 345 AM EDT Friday . Cold and unsettled weather will persist through early next week as we remain under the influence of the aforementioned upper trough. Cold air advection and shortwaves rotating around the base of the trough will keep showers around through at least Tuesday morning, and with daytime temperatures only topping out in the mid to upper 30s, much of this will be in the form of snow. Both Monday and Tuesday will see brisk northwest winds as well, especially Monday when gusts up to 25 mph will be possible. Lows be in the teens to lower 20s. We'll finally see some relief mid week as high pressure builds over the region, then moves east, setting us up under southwest flow. Temperatures will warm into the 40s on Wednesday, and even into the 50s on Thursday.

AVIATION /19Z FRIDAY THROUGH WEDNESDAY/. Through 18Z Saturday . High pres building into our taf sites will result in vfr conditions the next 12 to 24 hours. Sfc obs show lingering MVFR cigs at Rutland, but based on satl trends and sounding data, expect these conditions to improve to vfr by 20z. Otherwise, north to northeast winds 10 to 15 knots this aftn will become under 5 knts by sunset this evening. Have not included in taf forecast for SLK, but noticing expected sfc temps will drop 10 degrees below cross over value with light winds overnight, so the potential for freezing fog toward sunrise on Sat will need to be monitored. Otherwise, vfr conditions with slowly shifting winds to the south/southwest occurs on Saturday.

Outlook .

Saturday: VFR. NO SIG WX. Saturday Night: VFR. NO SIG WX. Sunday: Mainly VFR, with local MVFR possible. Windy with gusts to 30 kt. Chance SHRA. Sunday Night: Mainly MVFR, with local IFR possible. Chance SHRA, Chance SHSN. Monday: Mainly MVFR, with areas VFR possible. Chance SHSN, Slight chance SHRA. Monday Night: MVFR. Chance SHSN. Tuesday: Mainly MVFR, with areas VFR possible. NO SIG WX.

CLIMATE. Record lows for Saturday morning (10/31)

Date KBTV KMPV K1V4 KMSS KPBG KSLK 10-31 17|1925 16|2002 18|2002 16|2002 19|1972 4|1925

BTV WATCHES/WARNINGS/ADVISORIES. VT . None. NY . None.

SYNOPSIS . Taber NEAR TERM . Taber SHORT TERM . Hastings LONG TERM . Hastings AVIATION . Taber CLIMATE .


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Franklin County State Airport, VT18 mi33 minN 710.00 miFair37°F17°F45%1018.3 hPa
Plattsburgh International Airport , NY22 mi35 minN 1310.00 miFair35°F19°F54%1018.7 hPa

Link to 5 minute data for KFSO

Wind History from FSO (wind in knots)
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Last 24hrN7NE7NE6NE7N8N10N8
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1 day agoS4S4SW5SW5SW3W3CalmW4CalmCalmW3CalmCalmW3CalmCalmCalmN4NE3E5E5N4N7N5
2 days agoN3CalmCalmCalmCalmSE3CalmS4CalmE3CalmE4E4CalmCalmSE3S3CalmS5S6S5S7S4S5

Tide / Current Tables for Sorel, Quebec
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Sorel
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Fri -- 06:15 AM EDT     Moonset
Fri -- 06:49 AM EDT     0.48 meters High Tide
Fri -- 07:31 AM EDT     Sunrise
Fri -- 10:33 AM EDT     0.48 meters Low Tide
Fri -- 05:39 PM EDT     Moonrise
Fri -- 05:40 PM EDT     Sunset
Fri -- 06:35 PM EDT     0.51 meters High Tide
Fri -- 10:37 PM EDT     0.50 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5

Tide / Current Tables for Islets Perces, Quebec
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Islets Perces
Click for Map
Fri -- 04:59 AM EDT     0.90 meters High Tide
Fri -- 06:14 AM EDT     Moonset
Fri -- 07:30 AM EDT     Sunrise
Fri -- 09:55 AM EDT     0.88 meters Low Tide
Fri -- 05:22 PM EDT     0.92 meters High Tide
Fri -- 05:38 PM EDT     Moonrise
Fri -- 05:39 PM EDT     Sunset
Fri -- 09:59 PM EDT     0.91 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.9

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Burlington, VT
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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 numerous 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.