The earlier evacuation and shelter advisory were issued to ensure public safety due to the potential for severe weather, including heavy rain, gusty winds, and small hail. Attendees of the Boston Pops Fireworks Spectacular were directly affected, with the event delayed and the venue temporarily closed. While the Esplanade has reopened, there remains a risk of isolated storms in the area. Those attending the event should remain vigilant and follow any further instructions from event personnel or local authorities.