Thursday, July29, 2021
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Marine Weather and Tides
Shelburne, VT

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 5:35AMSunset 8:23PM Thursday July 29, 2021 11:08 AM EDT (15:08 UTC) Moonrise 11:28PMMoonset 11:35AM Illumination 73% Phase: Waning Gibbous; Moon at 20 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 Shelburne, VT
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location: 44.38, -73.23     debug


Area Discussion for - Burlington, VT
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FXUS61 KBTV 291323 AFDBTV

Area Forecast Discussion National Weather Service Burlington VT 923 AM EDT Thu Jul 29 2021

SYNOPSIS. Precipitation chances increase later this afternoon as a cold front approaches the region. Widespread rain showers are expected across the North Country through Friday morning. This front will usher in a much cooler airmass for Friday with high temperatures much below normal in the 60s to around 70. Saturday will bring a return to dry weather before the next wave of precipitation arrives on Sunday.

NEAR TERM /THROUGH FRIDAY/. As of 908 AM EDT Thursday . Rain continues to track eastward across New York with light rain currently working its way into the Saint Lawrence Valley. Slight updates were made to the forecast to account for the earlier onset of rain across this area and cloud cover was increased as well. Rain will continue its trek across the North Country, reaching the Champlain Valley by early afternoon. See previous discussion below:

Previous Discussion . Surface high pressure will continue to shift eastward throughout the day today as our next frontal boundary approaches from the west. Looking at current satellite and radar imagery, a complex of thunderstorms associated with an MCS across the western Great Lakes continues to propagate towards the east/southeast. This complex will remain to our south, however the area of showers with a few embedded thunderstorms just to the north of this feature, associated with the larger scale shortwave and surface low, will provide the focus for widespread rain showers later evening into tonight. Current thinking is that as this MCS moves across the mid- Atlantic the best moisture axis will remain tied to this feature and thus south of our area, in turn brining with it the best chances for any heavy rainfall. Rain should begin moving into the region after 18z, with widespread rain showers across the area by 00z. The probability for thunder still remains fairly low given nearly isothermal sounding profiles, however have mentioned a slight chance for our southern areas across northern New York and central Vermont as some weak elevated instability is present. Overall, this system will bring beneficial rainfall, especially to the northern portions of our CWA (which still remain in moderate drought). QPF amounts will be generally between 0.25-0.75", with the highest amounts across the Northeast Kingdom of Vermont.

Chances for rain showers remain throughout the morning hours on Friday as a secondary piece of shortwave energy and surface front cross the area. This boundary will usher in a much cooler and drier airmass as NW flow becomes established. While still July, this front will bring a small taste of fall with lingering clouds and highs in the low/mid 60s. Winds will be out of the NW 10-15 mph with gusts upwards of 20 mph.

SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY/. As of 507 AM EDT Thursday . Upper trough axis move east of the area Friday evening and northwest flow aloft develops over the region. This pattern will persist right through Saturday. Any showers over Vermont will quickly come to an end Friday evening as high pressure builds into the region. Dry weather is expected on Saturday, but temperatures will continue to be below normal. Highs will generally be in the mid 60s to lower 70s.

LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/. As of 507 AM EDT Thursday . Dry weather continues into Saturday night, but another upper level trough of low pressure will move into the region Sunday and Sunday night with showers becoming widespread across the area along with the potential for a few thunderstorms. Highs on Sunday will once again be below normal with readings in the upper 60s to lower 70s. High pressure returns on Monday and flow aloft will generally be from the southwest right through the middle of next week. As a result, the weather should generally be dry with a warming trend taking place. High temperatures by the middle of next week should be right around seasonal normals with highs in the mid 70s to lower 80s.

AVIATION /13Z THURSDAY THROUGH MONDAY/. Through 12Z Friday . Changeable aviation conditions expected through the TAF period. Lingering VLIFR fog/low clouds will persist at KSLK through 13z before lifting to VFR as high clouds move into the airspace. Elsewhere, VFR conditions will remain through the afternoon hours. After 18Z, chances for showers increase along with lowering ceilings to MVFR across all TAF sites. Showers will persist through the remainder of the TAF period with reductions in visibility down to 4 miles possible. Towards 06z, ceilings will lower to IFR as a secondary boundary crosses the area by Friday morning. Winds will be out of the south around 10 kt today, becoming light and variable overnight as precipitation overspreads the area. Towards 08z, winds will begin to turn out of the W/NW for northern NY terminals.

Outlook .

Friday: Mainly VFR, with local IFR possible. Chance SHRA. Friday Night: VFR. NO SIG WX. Saturday: VFR. NO SIG WX. Saturday Night: VFR. Chance SHRA. Sunday: Mainly VFR, with local MVFR possible. Likely SHRA, Slight chance TSRA. Sunday Night: MVFR/IFR conditions possible. Chance SHRA, Slight chance TSRA. Monday: Mainly VFR, with areas IFR possible. Slight chance SHRA.

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

SYNOPSIS . LaRocca NEAR TERM . Hammond/LaRocca SHORT TERM . Evenson LONG TERM . Evenson AVIATION . LaRocca


Weather Reporting Stations
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On 03/09/2021 the NDBC primary processing servers were shut off due to a facilities issue. Station pages on the NDBC website are not updating and there is no ETR at this time. We will update this banner as we learn more.
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45195 9 mi38 min 69°F1 ft

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington, Burlington International Airport, VT8 mi74 minSSW 810.00 miPartly Cloudy71°F54°F55%1013.8 hPa
Plattsburgh International Airport , NY23 mi75 minSE 910.00 miFair67°F57°F71%1013.1 hPa

Link to 5 minute data for KBTV

Wind History from BTV (wind in knots)
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Last 24hrN5N9N9N9N7NW8N7
G15
N5N3SE3E3CalmCalmE3E3CalmCalmE3CalmCalmCalmS5S8S9
1 day ago3NW7NE5N9N5E4CalmCalmNE3N3CalmCalmCalmN3CalmCalmCalmCalmCalmCalmNE4N6N6N7
2 days agoSW53SW7S5SW8SW6NW5NW8W7CalmSW4S4S3S3CalmCalmCalmCalmCalmCalmCalmCalmNE3Calm

Tide / Current Tables for
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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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