Thursday, May13, 2021
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Marine Weather and Tides
Vergennes, VT

Version 3.4
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1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:25AMSunset 8:13PM Thursday May 13, 2021 9:28 AM EDT (13:28 UTC) Moonrise 6:32AMMoonset 10:14PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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 Vergennes, VT
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location: 44.27, -73.28     debug


Area Discussion for - Burlington, VT
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FXUS61 KBTV 131119 AFDBTV

Area Forecast Discussion National Weather Service Burlington VT 719 AM EDT Thu May 13 2021

SYNOPSIS. A stretch of seasonably warm days with scattered afternoon showers and an isolated rumble of thunder are expected for the North Country. A frontal boundary is expected to approach towards the middle of the next week.

NEAR TERM /THROUGH FRIDAY/. As of 719 AM EDT Thursday . Main update was to remove the frost advisory with temperatures quickly warming now that the sun has been up for a couple hours. A pleasant day is in store with scattered showers late towards evening. The forecast is in good shape, with only minor adjustments needed. Have a wonderful day!

Previous Discussion . During the day, we should have mostly sunny skies. Temperatures will quickly climb into the mid to upper 60s. Forecast soundings indicate a deeply mixed environment, yet with high pressure nosing in, the overall flow is weak. Thus, it could be breezy this afternoon, but nothing much stronger than 15 to 20 mph. Relative humidities will fall below 30 percent, but with green-up well underway and recent rainfall, this should not pose too much of an issue. Late in the day, a pocket of very dry air will shift southwards creating a density boundary in Quebec Province. A few showers and perhaps a thunderstorm or two will develop along this feature and then push southwards into the North Country late this afternoon. These could produce brief, gusty winds owing the dry PBL conditions in place. Axis of deformation and even some FGEN pivots into Vermont, which may allow activity to continue for some time after sunset. After midnight, this small region of better dynamics shifts south and east, and activity should quickly wane. Overnight lows will be a few degrees warmer, with upper 30s in the Dacks and Northeast Kingdom, and 40s for the rest of the region.

On Friday, despite the incoming ridge and relatively dry surface conditions, enough instability is in place to produce scattered showers during the afternoon. Initiation should begin across the high terrain of the Adirondacks and Greens, and then showers will shift southeastwards as they develop. Temperatures will warm in the mid 60s to lower 70s in the afternoon with light, but steady west to northwest winds.

SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY/. As of 357 AM EDT Thursday . Friday night and Saturday will feature pretty quiet weather, and temperatures beginning to rise above seasonal normals. Afternoon showers on Friday will dissipate and the overnight will be mainly dry with ridge of surface high pressure still over the region. Saturday will also start out dry and quiet, but temperatures will warm into the upper 60s to lower 70s Saturday afternoon, and some weak shortwave energy will pass through upper level flow. Therefore have mentioned just a chance for some afternoon showers, especially in the Northeast Kingdom of Vermont.

LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/. As of 357 AM EDT Thursday . Any showers will die down Saturday night with loss of daytime heating and little bit of surface instability that was available. Ridge of surface high pressure will finally slide eastward early next week. Models still not in very good agreement with how things will play out next week, but it still appears that a surface cold front will cross the area on Tuesday. GFS wants to bring this feature through relatively dry, while the ECMWF wants to spit out some showers for us. Beyond Tue there's really not much agreement between the models at all. Does look like temperatures will remain slightly warmer than seasonal normals though with highs in the upper 60s to lower 70s each day, and lows in the 40s to lower 50s.

AVIATION /11Z THURSDAY THROUGH MONDAY/. Through 12Z Friday . Currently mostly clear with calm to light winds. Expect northwest to west winds to pick up to 6 to 10 knots after 14Z with a few gusts to 15 knots possible. Scattered showers will develop across Quebec Province and sink southwards towards KPBG, KBTV, and KMPV around 22Z-04Z, and then dissipate. A rumble of thunder and brief, gusty winds will be possible if a stronger shower happens to impact a terminal. However, just have VCSH mentioned. Shower activity diminishes after 05Z Friday, and winds become calm.

Outlook .

Friday: VFR. Slight chance SHRA. Friday Night: VFR. NO SIG WX. Saturday: VFR. Slight chance SHRA. Saturday Night: VFR. NO SIG WX. Sunday: VFR. Chance SHRA, Slight chance TSRA. Sunday Night: VFR. NO SIG WX. Monday: VFR. Chance SHRA.

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

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington, Burlington International Airport, VT16 mi34 minN 010.00 miFair56°F31°F39%1023.4 hPa

Link to 5 minute data for KBTV

Wind History from BTV (wind in knots)
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Last 24hrNW5NW85N12
G18
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NW5NW5NW4W9SW5SW5SW4SW6CalmS3S3S3E4E3CalmCalmCalmCalmCalm
1 day agoW9W9W11
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W8N7NW13
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W6NW9W9W5W7W10W4W6W3NW5S3S4S3CalmN3
2 days agoN4NW4NW103NW8W9NW7W10W5NW7NW6W3SW7NW9
G15
S6S3S4S3S5S5S5CalmS4SW4

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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