1 hail, 1 waterspout, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The Sterling radar (KLWX), 50 km away, was scanning. The volume nearest the first event began at 16:25 UTC.
1 hail, 1 waterspout. Local standard time, as filed.
Dime-sized hail fell briefly in Capitol Heights. Marble-sized hail fell a bit earlier in downtown Washington, DC. One tree fell onto wires near Greenbelt, causing a disruption of service to 2300 Potomac Electric Power customers.
A waterspout touched down briefly in the Bush River near the intersection of federal highway 40 and the Amtrak railroad bridge.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 1997Every state in 1997This day in weather historyWarnings in Maryland, May 1997
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5600206, 5600266.