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Flash Flood in Montgomery County, Maryland

Flash Flood September 1, 2021 · Montgomery County, Maryland

1
Death
4
Injuries
$1.0M
Damage as recorded

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Floodwaters rushed into the Rock Creek Woods Apartments shortly before 3 AM EST according to Montgomery County Police and Fire Officials. The water rose almost to the ceilings in some cases. A 19 year old male was deceased due to the floodwaters.

Three people were hospitalized due to injuries that were not life threatening, and one firefighter suffered minor injuries.

The wider storm

The remnants of Ida produced widespread flooding along with instances of flash flooding across the area. Tropical moisture infiltrated the area and there were moderate amounts of instability as well. This combined with the lift provided from the remnants of Ida led to heavy rainfall during this time. Rainfall amounts averaged around 1-3 near and east of Interstate 95, with amounts around 4 to 8 inches across portions of northern and central Maryland. Excess runoff from the heavy rainfall led to river flooding as well.

Began near Autrey Park (39.0723, -77.1123).

Source: NOAA Storm Events Database, event 986683. Narratives are written by the National Weather Service forecast office that issued the report.

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