National Weather Service. Flash flooding is a concern from northern Virginia into eastern West Virginia, south-central Pennsylvania and much of Maryland, forecasters said.
Heavy downpours could yield up to 1 inch of rain per hour on Friday morning and afternoon in some areas. Water in some areas is already running high due to runoff from the powerful nor’easter that affected the Northeast earlier this week.
In the Washington, D.C. region, forecasters said strong onshore gusts of 40 to 50 mph will push water up the Bay and Tidal Potomac, which could potentially produce the highest water levels in several years.Flash flood threat on Friday, Oct.