Saturday, August24, 2019

Marine Weather and Tides
Winooski, VT

Version 3.4
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 Allen

Sunrise 6:04AMSunset 7:45PM Saturday August 24, 2019 5:27 PM EDT (21:27 UTC) Moonrise 12:00AMMoonset 3:02PM Illumination 31% Phase: Waning Crescent; Moon at 24 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 Winooski, VT
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location: 44.49, -73.2     debug

Area Discussion for - Burlington, VT
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Fxus61 kbtv 241906
area forecast discussion
national weather service burlington vt
306 pm edt Sat aug 24 2019

Clouds cover will finally begin to diminish late this afternoon into
this evening with mostly clear skies residing through the overnight
hours. Some patchy dense fog is possible tonight but will likely be
limited to favorable locations within the green and adirondack
mountains. Sunday, Monday and Tuesday look to be very pleasant days
across the region with partly to mostly sunny skies and temperatures
in the 70s. The next chance of rain comes on Wednesday with a
weakening front moving toward the region. High pressure then looks
to redevelop across the region leading to another dry period of
weather for the second half of the upcoming week.

Near term through Sunday night
As of 306 pm edt Saturday... Clouds continue to be stubborn this
afternoon but it finally looks like there is an end in sight for the
abundant cloud cover. A strong subsidence inversion has trapped
moisture in the boundary layer so far today with the vertical extent
of these clouds just 1000 feet or so based off webcam and model
soundings. A shortwave approaching from the northeast has already
begun to break clouds out across the northeast kingdom as subsidence
behind the wave has helped to scour our the cloud cover. Once the
wave pushes through, we should see increasingly clearing skies
heading into the evening and overnight hours which will allow
temperatures to quickly fall especially given how we underperformed
on high temperatures today due to the cloud cover. With temperatures
falling quickly tonight, patchy dense fog is expected once again
across the favorable locations in the green and adirondack
mountains. Any fog that develops tonight will quickly mix out Sunday
morning with better heating as cloud cover should be much less

High pressure will continue to remain dominant on Sunday with partly
to mostly clear skies allowing temperatures to warm back into the
70s across the region. Chances for rainfall are nearly zero percent
but there is a small chance for a little drizzle across southern
vermont during the late afternoon hours.

Short term Monday through Monday night
As of 306 pm edt Saturday... Surface high pressure will continue to
hold over the region with an upper low across the canadian maritimes
maintaining easterly flow over the region. This will advect a drier
air mass into the region. Another pleasant day is in store with
highs in the 70s. Winds begin to shift and come out of the south
overnight, so we begin a gradual warm up. Lows should be in the
upper 40s to mid 50s.

Long term Tuesday through Saturday
As of 306 pm edt Saturday... For Tuesday, surface high pressure will
slide offshore and upper ridge will crest over the region. Deep
layer southwesterly flow will initiate a gradual warm-up trend.

Tuesday should be just a few degrees warmer with valleys approaching
the low 80s. A north-south oriented front begins to move into the
region in the overnight hours Tuesday into Wednesday. Vorticity will
begin to get stretched ahead of the next trough as upper ridging
amplifies. Thus, the fronts motion will be sluggish and expect most
impacts on Wednesday, but there is some variability in model timing.

The front does have a few things going for it, like good height
falls, decent thermal gradients, and a high shear environment. On
the other hand, CAPE values look to be 250 j kg or less and low-
level convergence will be lacking without appreciable northwest
winds behind the front due to a secondary system right behind.

Additionally, the north country will not be located in a favorable
jet placement for upward motion. Overall, anticipate a line of
showers to track eastward throughout the day on Wednesday.

Timing of the front and clouds make the MAX temperature forecast for
Wednesday a challenge, but eastern vt will be warmest at least. The
front finally clears the area Thursday, but without any transition
to northwesterly flow, temperatures will not be much cooler behind
the front and there is also a piece of vorticity behind it and some
lingering instability, so the shower chances may linger a bit before
the stronger secondary system comes through. Models do not agree
when that takes place, so will keep a blend for now. High
temperatures should be near normal, but low temperatures will likely
be slightly above normal.

Aviation 19z Saturday through Thursday
Through 18z Sunday... MVFR conditions have lingered much longer
than expected today but it looks like some improvement from 2500
ft to 3500 ft has been noted over the past hours. This mix of
vfr and MVFR ceilings now looks to continue through the
afternoon hours into the evening hours when we see some breaks
in the cloud cover. Based on how quickly the cloud cover
dissipates this afternoon, temperatures could fall quickly
allowing kslk and kmpv to reach their crossover temperatures and
allow for some patchy dense fog to once again develop. The best
time frame for this will be 07z-12z with any fog quick to lift
on Sunday with less sky cover than today.


Sunday night:VFR. No sig wx.

Monday:VFR. No sig wx.

Monday night:VFR. No sig wx.

Tuesday:VFR. No sig wx.

Tuesday night:VFR. Slight chance shra.

Wednesday: mainlyVFR, with areas MVFR possible. Chance shra.

Wednesday night: mainlyVFR, with local ifr possible. Chance

Thursday: mainlyVFR, with local MVFR possible. Slight chance

Btv watches warnings advisories
Vt... None.

Ny... None.

Synopsis... Clay
near term... Clay
short term... Haynes
long term... Haynes
aviation... Clay

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45178 13 mi87 min 64°F 72°F1026 hPa (+0.0)
45166 21 mi42 min N 5.8 G 7.8 67°F 74°F53°F
45188 30 mi102 min 71°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington, Burlington International Airport, VT3 mi33 minNNW 1010.00 miPartly Cloudy70°F54°F57%1024.6 hPa
Plattsburgh International Airport , NY18 mi34 minN 510.00 miA Few Clouds68°F52°F57%1024.9 hPa

Link to 5 minute data for KBTV

Wind History from BTV (wind in knots)
Last 24hrN6N8NW10NW7NW3CalmN4CalmCalmCalmCalmCalmE3CalmCalmN8NE7N7N7N6N7N86N10
1 day agoW9W6W6W5CalmE33CalmS5S4S3S4CalmSW3CalmNW7N8NW10
2 days agoE4SE3S4CalmCalmS4S3S10S6S11S8SW5S5S5S10S8SW8SW6S11W10W8NW9W7W10

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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GOES 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.
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Wind Forecast for Burlington, VT (17,4,5,8)
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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 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.