Here is the BTV AFD discussing Thursday:
https://forecast.weather.gov/product.php?site=BTV&issuedby=BTV&product=AFD&format=CI&version=1&glossary=1
Thursday still looks to be active day with the potential for strong
to severe thunderstorms. The main threats with these storms will be
gusty winds and heavy rainfall which may lead to localized flash
flooding. Plenty of instability will be available owing to the hot
and humid conditions, and CAPE values are progged to be in the 1500-
2500 J/kg range. Meanwhile, marginal deep layer shear is expected
with 0-6km bulk shear of 15-25 knots. The biggest limiting factors
will be the absence of large-scale lift and/or strong low-level
convergence. This means that convection will likely be initiated by
terrain-induced lift such as lake breeze convergence or orographic
ascent. However, once convection is initiated, storms should have no
problem continuing to develop given the favorable environment,
especially if there is an elevated mixed layer as indicated by GFS
forecast soundings. Heavy rainfall is expected where thunderstorms
develop with PWAT values of 1.75 to 2 inches. Meanwhile, warm clouds
depths should well exceed 10,000ft and storms are expected to be
slow moving. Therefore, localized flash flooding and ponding of
water is possible.
Otherwise, still expecting another day of oppressively hot and humid
conditions on Thursday with heat index values in the mid 90s to low
100s during the afternoon.