From BTV's afternoon AFD:
https://forecast.weather.gov/product.php?site=BTV&issuedby=BTV&product=AFD&format=CI&version=1&glossary=1
For early next week, the latest data has trended more amplified with
a strong storm system after it moves across the Southeast US in
response to a northern stream trough tugging it northward. If the
storm is steered northward, we will see at least some effect but it
is too early to know in what way at this time. The latest GFS
ensemble suggests a 20 to 30% chance of seeing at least a 0.5" of
liquid, indicative of at least a moderate snowfall, in Vermont
westward through the Adirondacks. Similar trends in the CMC and
ECMWF global guidance on this forecast cycle occurred. Note this is
a massive shift for ensembles of data, as those initialized 12 hours
earlier indicated low chances of any precipitation for our area. As
a result, we cannot assume a trend yet but have increased
precipitation chances substantially to split the difference between
the latest deterministic guidance and the National Blend of Models.
Stay tuned!