Isolated Flooding Possible After Severe Thunderstorms Pass

MARYLAND — Severe thunderstorms that prompted warnings for parts of central and northeastern Maryland have expired Monday night, according to the National Weather Service.

A severe thunderstorm watch remains in effect for Anne Arundel, Harford and Cecil counties until 10 p.m. on Monday, June 21. These areas may be impacted, according to authorities: Aberdeen, Annapolis, Arnold, Bel Air, Edgewood, Elkton, Fallston, Glen Burnie, Havre de Grace, Joppatowne, Odenton, Severn, Severna Park and South Gate.

Isolated cases of flooding could occur Tuesday in the Baltimore-Washington region, while a severe storm could occur in southern Maryland as well, officials say.

See the latest forecast from the National Weather Service.

EXPIRED — Severe thunderstorm warnings are in effect for parts of Harford, Cecil and Baltimore counties as well as Baltimore City Monday night.

During the severe thunderstorm warning period, people should go inside to stay safe from wind and lightning. They should move to an interior room on the lowest floor of a building.

Do not drive underneath wooded areas until the threat has passed, as trees and branches may fall.

Roads may become blocked by downed trees, and localized power outages are possible, according to the warning.

The severe thunderstorm warning for Harford and Cecil counties lasts until 7:30 p.m.

Severe Thunderstorm Warning including Elkton MD, Aberdeen MD, Havre de Grace MD until 7:30 PM EDT pic.twitter.com/Mw2OrSPSYr
— NWS Baltimore-Washington (@NWS_BaltWash) June 21, 2021

Some areas south are under a warning through 7:15 p.m.

After 6:45 p.m., authorities said thunderstorms were on a line from Riverside to Back River to South Gate, moving east at 35 mph. Officials reported the storms had 60 mph wind gusts and led to a severe thunderstorm warning for northern Anne Arundel, southeastern Harford and southeastern Baltimore counties as well as Baltimore City.

Locations impacted include the following, according to the National Weather Service: Baltimore, Severn, Middle River, Riviera Beach, Aberdeen Proving Ground, North Point State Park, Sparrows Point, Fort Smallwood State Park, Bodkin Point, Back River, Millers Island, Glen Burnie, Dundalk,
Essex, Severna Park, Odenton, Pasadena, Lake Shore, Ferndale and Fort Meade.

Just before 6:30 p.m., the National Weather Service reported radar detected storms packing 60 mph wind gusts from the Towson area to Dundalk to Severn that were moving east at 40 mph.

Around 6:15 p.m., officials said severe storms were on a line from Delta, Pa., to Cockeysville. Radar detected 60 mph wind gusts, as the storm was moving east at 35 mph. That prompted a severe thunderstorm warning until 7 p.m., according to the National Weather Service.

These areas may be impacted, according to the severe thunderstorm warning: Aberdeen, Havre de Grace, Calvert, Bel Air South, Bel Air North, Fallston, Jarrettsville, Rising Sun, Zion, Blake, West Nottingham, Octoraro, Lombard, Richardsmere, Woodlawn, Conowingo, Rock Springs, Farmington, Bay View and Perryville.

A severe thunderstorm watch remains in effect until 10 p.m. Monday.