A cold front passed across Maryland during the early evening hours of the 10th. Numerous thunderstorms erupted along and ahead of the front and many location saw several rounds of strong to severe weather.
Every event with a place to put it; 5 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 episode as NWS LWX wrote it up.
A cold front passed across Maryland during the early evening hours of the 10th. Numerous thunderstorms erupted along and ahead of the front and many location saw several rounds of strong to severe weather. The first round of storms developed over Central Maryland around 11:00 AM EDT. Dime sized hail fell at Silver Spring in Montgomery County. In Anne Arundel County, trees and power lines were downed in Annapolis and a lightning strike started a house fire in Rivera Beach. Over 10,000 county customers lost power. Thunderstorms redeveloped during the afternoon and continued through sunset, producing damaging winds, large hail, frequent lightning, and very heavy downpours. In Washington County, 60 MPH winds and dime sized hail were reported near Smithsburg. Small trees were downed east of Hagerstown where winds gusted to 44 MPH. Pea sized hail fell in Williamsport and at the Hagerstown Airport. In Frederick County, a tree fell onto a home in Thurmont and several trees and power lines were downed in the vicinity. Tennis ball sized hail fell in Ladiesburg and dime to quarter sized hail fell in Frederick. In Emmitsburg, winds blew hard enough to briefly lift a pickup truck and a funnel cloud was spotted nearby. Lightning struck a home in New Market. In Carroll County, tennis ball sized hail fell in Bruceville and Keymar and hen egg sized hail fell in Eldersburg. Several cars were dented in these areas. Quarter to golfball sized hail fell near Westminster and in Taneytown. Dime sized hail fell in Union Bridge, Linwood, and Manchester. Pea sized hail fell in Sykesville. A home was hit by lightning in New Windsor and a 54 MPH wind gust was reported in Millers. In Baltimore County, a funnel cloud was spotted in Pikesville. Dime sized hail fell in Reisertown and Owings Mills, and pea sized hail was reported in Towson. In Anne Arundel County, a 50 MPH wind gust was reported in Annapolis and Rivera Beach. In Montgomery County, a tree was downed. Dime sized hail fell in Damascus and Darnestown and marble sized hail fell in Rockville and Gaithersburg. In Prince George's County, several trees and power lines were downed. Pea sized hail fell in Accokeek, Brandywine, and Camp Springs. Marble sized hail fell near the Wilson Bridge. In Charles County, pea to dime sized hail fell in Waldorf. Downed trees, numerous lightning strikes, and minor street flooding were also reported. A 60 MPH wind gust was reported in White Plains. In Calvert County, trees were downed in Chesapeake Beach and Prince Frederick. Pea sized hail fell in Dunkirk. In St. Mary's County, trees were downed in Mechanicsville and dime sized hail fell in Hollywood.
The Sterling radar (KLWX), 79 km away, was scanning. The volume nearest the first event began at 15:27 UTC.
16 hail, 10 thunderstorm wind, 3 lightning, 2 funnel cloud. Local standard time, as filed.
A lightning strike severely damaged a home.
Trees and power lines were downed.
Dime sized hail fell.
Winds estimated at 60 MPH downed small trees.
Dime sized hail fell.
A tree was downed onto a home.
A pickup truck was lifted by high winds.
Tennis ball sized hail fell.
Tennis ball sized hail fell in Bruceville and Keymar and dented several cars.
Quarter sized hail fell.
Quarter to golf ball sized hail fell.
Dime to quarter sized hail fell.
Quarter sized hail fell.
Walnut to golfball sized hail fell.
A home was struck by lightning.
Dime sized hail fell.
Dime sized hail fell.
Dime sized hail fell.
Walnut to hen egg sized hail fell and dented several cars.
Dime sized hail fell.
Trees and power lines were downed.
Trees and power lines were downed.
Several homes and businesses were struck by lightning.
A wind gust of 60 MPH was estimated.
Trees were downed.
Dime sized hail fell.
Trees were downed.
Trees were downed.
Dime sized hail fell.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2000Every state in 2000This day in weather historyWarnings in Maryland, May 2000
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: 5144720, 5144721, 5144722, 5144212, 5144213, 5144214, 5144215, 5144216, 5144217, 5144218, 5144219, 5144220, 5144221, 5144222, 5144224, 5144223, 5144225, 5144226, 5144227, 5144228, 5144229, 5144295, 5144296, 5144297, 5144298, 5144299, 5144633, 5144300, 5144632, 5144634, 5144635.