Rolling Toward the Rally...
High pressure is currently sliding to our east in doing so it will take this beautiful day with it...unfortuantley. Low pressure is working our way from the Ohio Valley. As it approaches, air will be squeezed between the inbound low and the outbound high. This air will be working up from the south and will increase the moisture levels early tomorrow morning. The surface low is guided above by a decent shortwave and that will provide plenty of lift by afternoon for numerous showers and potential downpours and thunder...simply put, the afternoon and evening look wet.
The potent shortwave and surface low will be past us to the east on Saturday but we are still under the influence of longwave troughiness. This means that there will be cold enough air aloft to keep the atmosphere unstable enough for pop-up showers and thunderstorms with the most likely time to get them in the afternoon. So as it looks now, the Bruins Parade will be partly sunny, warmer in the 70s and muggy with a chance for passing showers especially later in the event.
One day closer to Father's Day and it still looks great. Although there is some conflicting info coming in on how close showers and T-Storms will get to us from the south, I'm not buying the northern solutions. I feel that the air will get cleaned out by the departing shortwave and shove the humid air far enough to our south to keep any wet weather out of here.
