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Cleanup Continues After Flash Floods Slam the DMV

MONTGOMERY COUNTY, MARYLAND, JUL 19 – Torrential rains overwhelmed outdated infrastructure, causing a 10-foot water rise in minutes and prompting about 100 emergency calls in Montgomery County, officials said.

  • On July 19, severe flash floods swept through Washington, D.C., and Central Maryland, inundating Montgomery County neighborhoods, as officials reported rapid water rises and emergency rescues.
  • With ground already saturated, torrents exceeded drainage capacity, with rainfall rates up to 5.5 inches per hour overwhelming local storm sewer infrastructure.
  • A 10-foot surge in Sligo Creek in minutes sent motorists scrambling, and emergency crews rescued stranded residents from vehicles and homes.
  • The National Weather Service issued Flash Flood Emergencies across Montgomery County, and Maryland Governor Wes Moore declared a state of emergency to mobilize aid.
  • Experts highlight urgent need for improved flood resilience as local and federal agencies stress infrastructure upgrades and urge residents to prepare emergency kits and stay informed.
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iastate.edu broke the news in on Saturday, July 19, 2025.
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