Friday, April3, 2020
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Marine Weather and Tides
Port Henry, NY

Version 3.4
NOTICE
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 6:27AMSunset 7:24PM Friday April 3, 2020 12:41 AM EDT (04:41 UTC) Moonrise 1:51PMMoonset 4:16AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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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7 Day Forecast for Marine Location Near Port Henry, NY
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location: 44.03, -73.44     debug


Area Discussion for - Burlington, VT
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FXUS61 KBTV 030249 AFDBTV

Area Forecast Discussion National Weather Service Burlington VT 1049 PM EDT Thu Apr 2 2020

SYNOPSIS. An offshore low pressure system will continue to send waves of rain and mountain snow westward through the North Country during the first half of the night. Precipitation will become lighter overnight, then diminish into just some patchy drizzle Friday through Friday night. Saturday will trend drier with increasing sun. A weak front will move through Sunday, with little impact other than a passing light shower or two. High pressure then moves into the area Monday, providing quiet weather with slightly above normal temperatures to start the work week.

NEAR TERM /THROUGH FRIDAY NIGHT/. As of 1049 PM EDT Thursday . Overall forecast in good shape and no changes needed at this time. Still seeing plenty of moisture working its way westward across Vermont and portions of northeast New York. Forecast soundings indicate we should begin transitioning to more rain at the lower elevations across eastern Vermont. And we should start to see warming aloft for higher elevation light snow to transition to rain and or freezing rain. This all covered in the current forecast.

Previous Discussion . Quite the gradient of precipitation across the area this evening. Areas west of Saranac Lake are dry with widespread rain and higher elevation snow extending eastward over the remainder of the area. Observations and forecast thermal profiles over the next several hours support the idea of snow at the higher elevations and have tweaked the forecast to account for a bit more snow today. An additional dusting to two inches is expected from the Green Mountains eastward and over the northern Adirondacks of New York. The idea of warming aloft after midnight looks good and we should see a transition to sleet and freezing rain at the higher elevations. Going forecast has this handled well and no changes for the overnight hours.

A vertically stacked offshore low will begin to fill this evening as it retrogrades westward towards Benchmark (40N 70W). The system will continue to send moisture westward through New England and into northern New York. Thus, waves of precipitation, mainly rain, will continue this evening into early overnight before tapering off into lighter showers Friday morning. Total QPF amounts between this afternoon and Friday afternoon will range between under a tenth of an inch in the Saint Lawrence Valley, to around a third to half inch in the eastern Adirondacks and Vermont. Some higher elevations may see some brief mixed precipitation, but no ice accumulations are expected. Showers will generally diminish Friday afternoon, but it will still be a damp day with lingering low clouds and potentially some patchy drizzle . especially over the Champlain Valley and northern NY. Parts of eastern Vermont will likely see some breaks of sun by the afternoon. High temperatures will begin a warming trend Friday, warming into the upper 40s to low 50s.

Friday night will see clouds once again lower, especially over the Saint Lawrence Valley and Champlain Valleys where low-level moisture will remain trapped near the surface. Forecast soundings showing highly blocked flow with light winds and a stable layer just off the surface owing to the warmer mid-level flow wrapping into the region. Thus, expect drizzle and insulating low clouds to persist through the night. Have stuck to warmer guidance on overnight temperatures, especially for the Valleys, with relatively mild overnight lows forecast in the mid 30s to around 40.

SHORT TERM /SATURDAY THROUGH SATURDAY NIGHT/. As of 318 PM EDT Thursday . Synoptic scale shows building mid/upper lvl ridge aloft acrs the eastern Great Lakes into the NE Conus. However, soundings especially the NAM12, NAM3, and BTV 4 show plenty of llvl moisture trapped below developing subsidence inversion, especially SLV and parts of the CPV. Given the very shallow nature of moisture profiles, summits could be above the clouds on Saturday Morning, while areas of low clouds and spotty drizzle prevail in the SLV and northern CPV. Froude number indicates highly blocked flow during this time frame associated with light north/northeast bl flow and developing inversion below summit level. Temps are tricky with warming 925mb to 850mb profiles, but lingering low clouds potentially impacting how warm we can reach. Have trended cooler SLV with values near 50F, while CPV and parts of central/eastern VT warm into the mid 50s. Progged 925mb temps of 5-7 with some mixing from strong early April sunshine could produce a few readings near 60f. Saturday Night, dry conditions are expected with temps falling back into the mid 30s to lower 40s with some increasing clouds from west to east. A few deeper valleys will decouple with light winds, allowing temps to drop back into the 20s, while midslopes hold in the mid/upper 30s, given the sharp and shallow thermal inversion.

LONG TERM /SUNDAY THROUGH THURSDAY/. As of 318 PM EDT Thursday . A fast westerly flow aloft prevails most of the extended period as mid/upper lvl trof remains anchored over central Canada and building ridge stays to our south. This large scale pattern will result in mainly dry conditions and above normal temps during this time frame. A dampening s/w and weakening ribbon of mid level moisture moves acrs our cwa on Sunday, with maybe a few very light rain showers, best chc northern NY. Modest llvl caa develops behind system on Sunday night into Monday with lingering light trrn focused rain/snow showers. Any qpf will be <0.10 with only minor snowfall anticipated. Weak high pres follows system for Monday into Tues with some building heights aloft by Tues. This idea supports dry conditions for both days, before next system arrives on Weds/Thurs. Some uncertainty on evolution/track, but given the west to east flow aloft, thinking a progressive type system with limited impacts looks reasonable. Have mentioned chc/likely pops for Weds. Developing south/southwest 850mb jet of 45 to 50 knots will produce trrn focused precip fields with qpf shadowing expected in the CPV. Depending upon timing a brief mix with snow is possible on Weds morning, as 925mb to 850mb profiles are at or slightly below 0c. Impacts will be minimal, given the llvl thermal profiles quickly increase above 0c with strong waa. QPF ranges from 0.10 to 0.25 with localized higher amounts possible in the mtns. Temps very uniformed during the period with some slight cooling on Monday, followed by temps warming back into the 50s for midweek, before cooling into the 40s due to clouds/precip by next Thurs. Lows generally in the upper 20s to mid/upper 30s.

AVIATION /03Z FRIDAY THROUGH TUESDAY/. Through 00z Saturday . MVFR conditions will lower to IFR over the next couple hours as maritime airmass continues to move into the North Country. IFR conditions will persist at all TAF sites, expect MSS, through the majority of the TAF period. Light rain, mixing with snow at terminals across eastern VT (including KMPV) will continue to overspread the airspace. General visibility reductions in these showers will be between 3-6 SM. Aviation conditions will gradually improve after 12z with ceilings to MVFR, but still expect some IFR conditions to remain through 18z here moisture gets trapped against mountains. Winds will be north/northwesterly 10 to 15 kt. Some areas of LLWS can be expected, mainly after 00Z, at KMPV, KRUT, and KSLK.

Outlook .

Friday Night: Mainly VFR, with areas MVFR possible. Patchy DZ. Saturday: Mainly VFR, with areas MVFR possible. NO SIG WX. Saturday Night: VFR. NO SIG WX. Sunday: Mainly VFR, with local MVFR possible. Chance SHRA. Sunday Night: Mainly VFR, with areas MVFR possible. Slight chance SHRA. Monday: VFR. NO SIG WX. Monday Night: VFR. NO SIG WX. Tuesday: VFR. NO SIG WX.

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

SYNOPSIS . Duell NEAR TERM . Evenson/Duell SHORT TERM . Taber LONG TERM . Taber AVIATION . LaRocca


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington, Burlington International Airport, VT35 mi47 minN 108.00 miLight Rain40°F37°F89%1006.5 hPa

Link to 5 minute data for KBTV

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Last 24hrN6N12N12N11N9N9N8N12N13N14N15N14
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1 day agoCalmCalmCalmCalmCalmCalmCalmCalmNW6NW7NW10N11NW13NW16NW17N17
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2 days agoCalmSE3CalmCalmCalmCalmCalmCalmNW3CalmNW8NW9NW11NW15
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N15N13--N8N4NW4NW4

Tide / Current Tables for Troy, Hudson River, New York
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Troy
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Fri -- 01:28 AM EDT     4.50 feet High Tide
Fri -- 04:13 AM EDT     Moonset
Fri -- 06:32 AM EDT     Sunrise
Fri -- 08:14 AM EDT     0.66 feet Low Tide
Fri -- 01:55 PM EDT     Moonrise
Fri -- 01:56 PM EDT     5.60 feet High Tide
Fri -- 07:23 PM EDT     Sunset
Fri -- 09:01 PM EDT     0.55 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.14.44.43.82.921.51.10.70.92.13.64.75.45.65.24.33.22.41.710.612.3

Tide / Current Tables for Albany, New York
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Albany
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Fri -- 01:20 AM EDT     4.50 feet High Tide
Fri -- 04:13 AM EDT     Moonset
Fri -- 06:32 AM EDT     Sunrise
Fri -- 08:04 AM EDT     0.66 feet Low Tide
Fri -- 01:48 PM EDT     5.60 feet High Tide
Fri -- 01:56 PM EDT     Moonrise
Fri -- 07:24 PM EDT     Sunset
Fri -- 08:51 PM EDT     0.55 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.24.54.43.72.71.91.510.71.12.33.84.95.45.65.14.13.12.31.60.90.61.22.5

Weather Map
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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.
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Wind Forecast for Burlington, VT (0,6,7,8)
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Ground Weather Radar Station Burlington, VT
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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 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.