Monday, December16, 2019
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Marine Weather and Tides
Plattsburgh, NY

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:22AMSunset 4:15PM Monday December 16, 2019 7:51 AM EST (12:51 UTC) Moonrise 10:08PMMoonset 12:06PM Illumination 77% Phase: Waning Gibbous; Moon at 19 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:201912161600;;870685 Fzus61 Kbuf 161133 Rra Glfsl Glfsl Forecast For The Saint Lawrence River Including The Thousand Islands Region National Weather Service Buffalo Ny 631 Am Est Mon Dec 16 2019 Slz022-024-161600- Saint Lawrence River From Cape Vincent To Saint Regis 631 Am Est Mon Dec 16 2019
Today..West winds 5 to 10 knots becoming southwest. Mostly Sunny.
Tonight..Southwest winds 5 to 10 knots becoming light and variable. Partly to mostly cloudy.
Tuesday..East winds less than 10 knots. A chance of snow in the morning, then snow likely in the afternoon.
Tuesday night..Southwest winds 10 knots or less becoming south. A chance of snow showers.
Wednesday..West winds 5 to 15 knots becoming northwest. A chance of snow showers.
Thursday..Northwest winds 10 knots or less. Becoming mainly clear.
Friday..North winds less than 10 knots becoming east. Mainly clear, then becoming partly cloudy.


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 161117 AFDBTV

Area Forecast Discussion National Weather Service Burlington VT 617 AM EST Mon Dec 16 2019

SYNOPSIS. Cool and dry weather for the start of the work week with high pressure. A low pressure system tracking just to our south on Tuesday will bring light snow to the North Country with minor accumulations expected. A stronger low pressure system will move down from Canada on Wednesday and produce widespread snow showers with the potential for locally heavy snow and gusty winds. Cold conditions will prevail to the beginning of the weekend.

NEAR TERM /THROUGH TUESDAY/. As of 611 AM EST Monday . For this update, bumped up sky cover for mid- level stratus deck moving across the area. One of the filaments managed to produce brief light snow at Saranac Lake . Otherwise, the forecast is on track. Have a great day!

A dry and seasonable mid-December day on tap for the North Country. Mostly clear skies are forecast through the day, though there could be intervals of mid clouds here and there. Expect highs in the 20s to near 30 degrees. Overnight lows should fall into the teens for much of the region with clouds streaming north ahead of shortwave to impact the area during the day Tuesday.

Advertised Tuesday snow event still appears on track. A weak low will track towards the Delmarva and deepen some owing to favorable pattern for height falls. As the low slides to our south, some warm conveyor belt precipitation will make its way into our region late Tuesday morning and wrapping up towards midnight on Tuesday. Snow amounts remain largely unchanged with 2"-4" across the Adirondacks of New York and in south-central Vermont with amounts falling below 2" as you head north and west.

Forecast soundings continue to display some mixed signals for dendrite growth, though. Springfield and Rutland soundings indicate best saturation will occur while drier boundary layer air is being saturated followed by mid-level dry air filtering into the DGZ. Cobb- Waldstreicher SLR forecasting techniques indicate lower SLRs accordingly, and values are closer to 10:1. Additionally, the GFS continues to occasionally allow a bit of a warm nose to filter into Springfield or Rutland, though it is mostly alone in this. Considering this, these areas will struggle to see better snow growth, which will likely keep amounts tamped down below 4".

SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY/. As of 343 AM EST Monday . Shortwave trough and associated surface low depart eastward across the Gulf of Maine and south of Nova Scotia Tuesday night. Will see diminishing chances for snow showers during the Tuesday evening hours, with brief period of 850-700mb shortwave ridging bringing generally dry conditions after midnight. May see some partial clearing, and combined with diminishing winds, early AM lows should drop into the upper teens to lower 20s.

Focus on Wednesday will continue to be potential for snow squalls. Surface low reflection near Ottawa at 12Z Wednesday along approaching well-defined arctic cold front will entrain moisture and surface-based instability as it shifts into the St. Lawrence Valley around 15Z Wednesday. Frontal forcing continues to look impressive. Also noting that mid-upper level closed low will enhance deep-layer lapse rates and UVV in conjunction with the sfc-925mb frontogenesis. The 00Z NAM12 and BTV4kmWRF both indicate SBCAPE values of 100-150 J/kg in advance of the frontal zone, and potential for developing line of snow squall activity as front crosses nrn NY 15-18Z, and across VT 18-21Z based on current indications. BTV Snow Squall Parameter highlights much of the forecast area consistent with these diagnostic fields. Brief gusts to 35 mph along with whiteout conditions will be possible based on sharp frontal zone and associated wind fields/instability. Indicated PoPs around 60% during period of best deep-layer forcing. Should see a quick coating to 2" of snow, and quick WNWLY wind shift with the frontal passage Wednesday afternoon. Flash freeze potential is generally low, but road temperatures may rise above freezing in a few valleys of central/s-central VT, and will need to monitor that for higher potential road impacts (melting and refreezing of precipitation on road surfaces) from the expected snow squall activity. High temperatures on Wednesday generally 25-31F.

LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/. As of 343 AM EST Monday . Cold and dry conditions will generally characterize the long-term forecast period. The coldest air mass of the season is likely to start the period Wednesday night into Thursday. The core of lowest 1000-500mb thicknesses (~495dm) and coldest 850mb temperatures traverse the North Country during Wednesday night into Thursday morning. With WNW winds 10-20 mph and gusts to 30 mph, anticipate a period of 15 to 25 below wind chills values during the early morning hours on Thursday. May need a Wind Chill Advisory as we approach the event. Overnight lows will range from zero to -10F across nrn NY, and generally in the single digits above zero across central and northern VT. Will see ineffective sunshine Thursday (though a few mtn snow flurries remain possible) with highs only +5 to +12F across the region. High pressure building in thereafter should bring lighter wind conditions, and a gradual moderation of surface temperatures. After a good radiational cooling night Thursday night, temperatures should moderate into the upper teens/lower 20s on Friday, the mid/upper 20s on Saturday, and mid 30s in the valleys on Sunday. While significant snowfall is not foreseen, a warm frontal zone Saturday night into Sunday may bring light snowfall, and have indicated 20-30 PoPs at this time.

AVIATION /11Z MONDAY THROUGH FRIDAY/. Through 12Z Tuesday . Mainly VFR conditions are expected. Cloud cover forecast is challenging this morning, but most areas should remain VFR, though a window of MVFR ceilings could occur at KMSS and KSLK around 15Z-18Z. Northwest to west winds will gradually turn towards the south at 5 to 10 knots. System approaches from the south after 12Z Tuesday.

Outlook .

Tuesday: Mainly VFR, with areas MVFR possible. Chance SN. Tuesday Night: Mainly MVFR, with local VFR possible. Slight chance SHSN. Wednesday: Mainly VFR, with areas MVFR possible. Windy with gusts to 30 kt. Chance SHSN. Wednesday Night: VFR. Chance SHSN. Thursday: VFR. NO SIG WX. Thursday Night: VFR. NO SIG WX. Friday: VFR. NO SIG WX.

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

SYNOPSIS . Haynes NEAR TERM . Haynes SHORT TERM . Banacos LONG TERM . Banacos AVIATION . Haynes


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plattsburgh International Airport , NY3 mi58 minN 010.00 miFair15°F7°F70%1024.2 hPa
Burlington, Burlington International Airport, VT21 mi57 minNNW 710.00 miFair18°F6°F59%1024 hPa

Link to 5 minute data for KPBG

Wind History from PBG (wind in knots)
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1 day agoNW5NW3N6N5N5N3CalmCalmSE3CalmCalmCalmSE3SE6S3SW14
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S14S11S6S4S8S13S9SE10SE10SE7SE5S5CalmW3CalmCalmNW4

Tide / Current Tables for Sorel, Quebec
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Sorel
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Mon -- 12:06 AM EST     1.29 meters Low Tide
Mon -- 07:28 AM EST     Sunrise
Mon -- 08:21 AM EST     1.35 meters High Tide
Mon -- 11:08 AM EST     Moonset
Mon -- 02:24 PM EST     1.33 meters Low Tide
Mon -- 04:07 PM EST     Sunset
Mon -- 05:32 PM EST     1.33 meters High Tide
Mon -- 09:03 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.31.3

Tide / Current Tables for
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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
Wind Forecast for Burlington, VT (7,2,3,4)
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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 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.