Saturday, July22, 2017

Marine Weather and Tides
Montpelier, VT

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 5:28AMSunset 8:29PM Saturday July 22, 2017 10:43 PM EDT (02:43 UTC) Moonrise 4:34AMMoonset 7:47PM Illumination 0% Phase: New Moon; Moon at 29 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 Montpelier, VT
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location: 44.27, -72.6     debug

Area Discussion for - Burlington, VT
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Fxus61 kbtv 230242
area forecast discussion
national weather service burlington vt
1042 pm edt Sat jul 22 2017

An isolated shower or thunderstorm remains possible this evening
across the northern adirondacks and south-central vermont.

Otherwise, high pressure across quebec will bring light north
winds and dry conditions overnight and through the daylight
hours on Sunday. Our chances for showers increase as an upper
level trough will bring widespread showers to the north country
beginning Sunday night and lasting through Monday and into
Monday night.

Near term through Sunday night
As of 1038 pm edt Saturday... Weak sfc high pressure across sern
ontario swrn quebec will be in control overnight. That said,
abundant mid-level clouds remain present for all but far NRN vt
at 02z per recent IR imagery. While no additional precipitation
is expected, these clouds will mitigate cooling overnight and
limit fog formation in most areas. Have raised overnight lows a
couple of degrees and removed fog from the forecast.

With high pressure in firm control Sunday expect another quiet
day to start. The upper level trough will still be east of the
the great lakes mid day so while clouds should be on the
increase during the day, precip will be slower to arrive. The
flow aloft will be generally northwest with northeasterly
surface flow. The weak cool air advection and increase cloud
cover should only allow the temps to warm to the mid 70s on

Heading into the evening hours the upper level clouds low will
continue to track over the great lakes and a meso low will
develop over lake ontario. That meso low will ramp up shower
activity quickly and should lead to widespread showers over
northern new york late Sunday night.

Short term Monday through Tuesday
As of 332 pm edt Saturday... Low pressure system will bring
showers and possible thunderstorms to the north country Monday
through Tuesday. Surface low pressure will approach from the
southwest as a mid level trough digs into the eastern great
lakes during the day Monday. Pwats will climb to around 1.25" as
low level deformation increases with approaching low. While
moist environment will be in place, CAPE will be lacking over
most of vt and 500-1000 j kg over northern ny on Monday. Expect
thunderstorms to affect northern ny with just showers over vt.

Se to easterly winds around 925-850mb could result in some
downsloping and slightly less pops in the leeward valleys.

Overcast skies, rain showers, and decreasing 925mb temperatures
on Monday, expect maxes in the 60s.

Monday night into Tuesday will see surface low near lake
ontario translate some of its energy to a coastal low off the
jersey coast. While this coastal low takes the bulk of moisture
with it enewd out to sea, the 500mb trough will move across the
north country on Tuesday, resulting in more showers.

Temperatures still below normal with Monday nigh min in the 50s
and Tuesday MAX in the upper 60s to mid 70s.

Long term Tuesday night through Saturday
As of 332 pm edt Saturday... Expect the 500mb trough to move
east of vt by 00z Wednesday with high pressure building at the
surface. Clearing skies Tuesday night could lead to areas of
patchy fog. Drier air filters in with pwats falling to 0.5-0.75
Tuesday night into Wednesday. Wednesday will be dry and warmer
with maxes in the mid 70s to around 80.

Ridge of surface high pressure slides east Wednesday night,
putting the north country in south to southwest flow. A surface
cold front is progged to move into the st lawrence valley for
the latter half of Thursday, producing showers and
thunderstorms. This will continue into Thursday night as the
cold front continues to cross the region.

Model guidance diverges as the ECMWF stalls the frontal
boundary over new england Friday as energy rides along the front
and develops into a surface low. This low strengths and moves
northward over western new england resulting in a wet weekend.

On the other hand, the GFS builds high pressure into northern
new england through the rest of the period.

Aviation 03z Sunday through Thursday
Through 00z Monday... MainlyVFR conditions are expected through
the period. A weak frontal boundary is providing some isolated
showers and thunderstorms across southern vermont though
coverage is very sparse. Have just mentioned vcsh for a couple
hours. Ifr fog still remains a possibility for slk mpv and the
feeling is that visibility's will jump up and down with periods
of MVFR ifr 2-4sm visibility's generally between 8z- 11z.

Overall, winds will be light out of the north northeast at
05-10 knots.


Sunday night:VFR. Chance shra.

Monday:VFR MVFR. Likely shra.

Monday night:VFR MVFR. Chance shra.

Tuesday:VFR MVFR. Chance shra.

Tuesday night:VFR. No sig wx.

Wednesday:VFR. No sig wx.

Wednesday night:VFR. Chance shra.

Thursday:VFR. Likely shra... Chance tsra.

Btv watches warnings advisories
Vt... None.

Ny... None.

Synopsis... Deal
near term... Banacos deal
short term... Kgm
long term... Kgm
aviation... Deal verasamy

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45178 48 mi43 min WNW 1.9 65°F 71°F1009 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Barre / Montpelier, Knapp State Airport, VT4 mi52 minN 010.00 miMostly Cloudy66°F55°F70%1011.8 hPa
Morrisville-Stowe State Airport, VT18 mi49 minN 010.00 miFair61°F55°F84%1011 hPa

Wind History from MPV (wind in knots)
Last 24hrW4W3W3S4S4S5S3CalmCalmN3CalmN9NW6NW9N5N8W5NW6NW5NW6NE4N5CalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW4CalmW6NW9NW8W8W7W5NW7NW13
2 days agoCalmCalmCalmS3CalmCalmCalmS3S4CalmCalm334N34W5W55NW6NW4Calm3SW3

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
IR Satellite Image from GEOS

GOES Local Image of Northeast    EDIT

Wind Forecast for Burlington, VT (22,6,7,8)
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Ground Weather Radar Station Burlington, VT
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weather_mapweather_map weather_map

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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 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 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.