Weather Alert: Strong Storms Hit DC Area; More Storms Expected Monday

A flash flood watch begins Monday afternoon

Storms toppled trees and knocked out power in parts of the D.C. area Sunday evening and more storms are expected on Monday.

Severe thunderstorms hit parts of D.C., Falls Church and Arlington, Montgomery, Fairfax, Loudoun and Frederick counties earlier.

More than 4,700 Dominion Energy customers were without power in Northern Virginia, as of about midnight. Most of those outages were in Loudoun County.

More than 2,700 Pepco customers don't have power in Montgomery County.

Feels-like temperatures reached as high as 112 in some areas earlier Sunday.

Monday will be a bit cooler with temperatures in the low 90s and heat indexes in the upper 90s to near 100.

A flash flood watch is in effect for the region Monday afternoon and evening, when storms are expected to bring heavy rain. See a full list of alerts here.

Storm chances will continue overnight Monday into Tuesday morning as a cooling frontal system crosses the region. Rain chances will diminish slowly through the day on Tuesday, with falling humidity and temperatures only around 80  — have you ever been so excited for Tuesday? By Wednesday, we will have sunny skies with low humidity and temps back in the 80s.

Since Thursday, D.C. Fire and EMS responded to 64 heat-related calls. Eleven people were taken to hospitals on Sunday.

A woman died after suffering a heat-related emergency while hiking on the Billy Goat Trail in Great Falls on Saturday, a spokesperson for Montgomery County Fire and Rescue said.

Heat is the top weather-related killer in the U.S. At least three other people have died in Maryland this year from heat-related causes, NBC News reported

Storm Team4 has this advice for staying cool and safe during this heat wave:

  • Wear lightweight and light-colored clothing
  • Stay hydrated
  • Stay in the shade or air conditioning as much as possible
  • Check on elderly or infirm friends and neighbors to insure they are staying cool
  • Make sure outdoor pets are either brought inside or at least have ample shade and fresh water
  • Never leave kids or pets unattended in a car on a hot day. Temperatures can quickly reach dangerous levels

D.C. Mayor Muriel Bowser activated the District's Heat Emergency Plan earlier this week.

Those in need of a place to cool down are encouraged to visit libraries and recreation centers during their normal business hours, or the Adams Place Day Center (2210 Adams Place NE). See a map of D.C.'s cooling centers here.

A hyperthermia hotline is available at 202-399-7093 for anyone seeking transportation to a cooling center for a resident experiencing homelessness, officials said.

Prince George's County has opened twelve cooling centers. Here's a list

In Maryland, residents can call 211 for information on where to find cooling centers, the state says.

Monday will be fairly cloudy with daytime highs topping out about 90 degrees and a heat index about 100 degrees.

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