Debby’s deluge: Post tropical cyclone continues downpour on DC area

Listen live to WTOP for traffic and weather updates on the 8s.


The latest:

  • Flood warning in effect till 1 p.m. in D.C., Montgomery County in Maryland, and Arlington County, Fairfax County, Alexandria and Falls Church in Virginia.
  • A flash flood warning in northwestern Prince George’s, eastern Montgomery and northwestern Anne Arundel counties in Maryland lasts till 11:30 a.m.
  • A separate flash flood warning for Carroll, Frederick, Howard and Baltimore counties remains in effect until 10:45 a.m.
  • Another flash flood warning is in effect until 11 a.m. in D.C., Prince George’s and Montgomery counties in Maryland, and Arlington County, Fairfax County and Alexandria in Virginia.

Post Tropical Cyclone Debby continued to drench the D.C. area Friday, as ongoing heavy rain, a tornado watch and flash flood warnings blanket the region as the center of the storm moves overhead. Severe thunderstorms could also produce tornadoes throughout the morning.

Here’s what you need to know.

Parts of Maryland, including Montgomery, Prince George’s, Carroll, Charles, Howard, Frederick, Anne Arundel and Baltimore counties, remain under a tornado watch until 2 p.m. Friday. 

Flash flood warnings are also in effect as rainfall rates reach 2.5 to 4.5 inches every hour.

Between 2 and 5 inches of rain have already fallen across the listening area since Debby moved into the mid-Atlantic Wednesday night. Heavy rain and strong winds throughout the day could lead to more downed trees and power outages, according to WTOP meteorologist Lauryn Ricketts.

“We will continue to see bands of rain pushing through the area through the day today, we might even have more tornadic activity,” Ricketts said.

Storms will calm down Friday afternoon, but showers will stick around late into the evening. Winds should also die down overnight, with breezy conditions on Saturday morning.

“Good news is, much nicer for the weekend, with sunshine and lower humidity,” Ricketts said.

Thankfully, a cold front will also pass through the region, leaving residents with highs in the mid to upper 80s on Saturday and Sunday.

Weathering the storm

Virginia Gov. Glenn Youngkin declared a state of emergency for the Commonwealth on Tuesday as the impending weather “could cause transportation difficulties and power outages.” The declaration allows the state to prepare resources to help with dangerous storm conditions and recovery.

Youngkin told WTOP, “Northern Virginia will see a lot of rain. And so I’m just asking everybody, please stay informed, stay alert and have a plan.”

“Let’s stand up together. Let’s lock arms and make sure that we all weather the storm healthy and safely,” he added. “Your car is not a submarine, and let’s use some common sense here.”

Maryland issued a state of preparedness declaration that coordinates preparations for the storm without declaring a state of emergency. The District also activated its Emergency Operations Center in anticipation of Tropical Depression Debby’s impacts.

Earl Stoddard, former director of the Office of Emergency Management and Homeland Security in Montgomery County, told reporters in Wednesday’s briefing: “With a storm system like this, what we’re concerned about is the near-random locations of high intensity rainfalls that overwhelm the local stormwater management systems in that area,” and lead to either street or backyard flooding.

There are areas of the county that flood regularly when heavy storms hit.

“The aptly named Beach Drive is a common place where we see flooding,” he said.

There are also flood monitors that dot the county with sensors that serve as warnings before actual flooding takes place, said Stoddard. “We have teams around the county making sure those monitors are actively working right now,” he said.

“We will have the Emergency Operations Center actively monitoring during the peak of the storm, certainly Friday into Saturday,” said Stoddard.



FORECAST

FRIDAY
Intermittent heavy rain. Windy at times. Flooding ongoing, possibly tornadoes east of Blue Ridge Mountains.
Temps: Around 80
Winds: SE 15 to 25 mph, gusts 35+ mph

FRIDAY NIGHT
Rain pushing out west to east. Breezy. Gradual clearing west to east. Ongoing flooding and road debris.
Temps: 70s
Winds: W 5 to 15+ mph

SATURDAY
Mostly sunny, with more clouds and a shower possible south of D.C. Low humidity.
Temps: Mid to Upper 80s
Winds: NW 5 to 10 mph

SUNDAY
Mostly sunny to partly sunny.
Temps: Low to mid 80s

MONDAY
Partly cloudy and refreshing.
Temps: Low 80s

TUESDAY
Mostly to partly cloudy, 20% chance of a shower.
Temps: Near 80

CURRENT CONDITIONS

Outages

The Associated Press and WTOP’s Will Vitka and Kate Ryan contributed to this report.

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Emily Venezky

Emily Venezky is a digital writer/editor at WTOP. Emily grew up listening to and reading local news in Los Angeles, and she’s excited to cover stories in her chosen home of the DMV. She recently graduated from The George Washington University, where she studied political science and journalism.

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