Boston is preparing for a weekend of significant rainfall and thunderstorms, as reported by the National Weather Service. An incoming weather system from the west is predicted to bring as much as 2 inches of rain to certain areas. The primary concern is the potential for thunderstorms, particularly on Saturday afternoon, which could result in localized flooding, especially in low-lying regions. This weather pattern is part of a larger system affecting the northeastern United States, driven by an intensifying low-pressure system moving eastward. Boston residents are advised by the National Weather Service to prepare for wet conditions and potential disruptions to outdoor activities.