Overview

• The National Weather Service issued a Flash Flood Emergency for southern Montgomery County and parts of Washington, D.C., marking the first use of the designation locally since 2003.
• Storms dumped 3–5 inches of rain in under two hours on July 19, triggering widespread street flooding.
• Montgomery County Fire and Rescue Service crews responded to over 100 flood-related calls from 5 p.m. to 7 p.m., rescuing dozens of people from stranded vehicles and buildings.
• Sligo Creek flood sensors registered a 10-foot rise in water level within 30 minutes, underscoring the rapid onset of the flash floods.
• As floodwaters recede, emergency responders are clearing debris, assessing road damage and monitoring for isolated showers with flash flood warnings still in effect.