Residents in Washington, D.C., Maryland, and Northern Virginia should prepare for potential flash flooding in low-lying and flood-prone areas. Damaging winds could lead to downed trees and power outages, while isolated tornadoes pose a risk to life and property. Heavy rainfall may overwhelm drainage systems, increasing the likelihood of localized flooding. Travelers and commuters should exercise caution, as road conditions may deteriorate rapidly during storms. The severe weather could also disrupt outdoor activities and events scheduled for Sunday evening.