Isaias remnants to bring heavy rain, thunderstorms and tornado risk to Maryland

A tropical visitor is expected to arrive in the mid-Atlantic over the next 24 hours.

Maryland is bracing for a wet, windy Sunday as the remnants of Isaias move into the mid-Atlantic, bringing 1 to 2 inches of rain, thunderstorms, wind gusts as high as 28 mph and a “small potential” for tornadoes, according to the National Weather Service.

The first storm of the 2026 Atlantic season made landfall in Destin, Florida, around 9:30 p.m. Friday as a Category 2 hurricane with winds up to 105 mph, ravaging the Gulf Coast and killing two people. As the hurricane moved farther inland it dropped in both intensity and status — early Saturday morning it was downgraded to a post-tropical cyclone, which is powered by clashing warm and cold air rather than warm ocean waters.

“We’re currently expecting the remnants to slowly move into the region over the next 24 hours or so,” meteorologist Samantha Timmers said.

The NWS forecaster added that rain showers will likely begin early Saturday evening near the Allegheny Mountains, but the heaviest rain begins Sunday.

What Maryland can expect

So far, the storm has not caused any major disruptions across the region for air travel, but according to FlightAware — a global aviation tracking company — there have been 12 delayed flights in and out of the Baltimore/Washington International Thurgood Marshall Airport (BWI) and seven cancellations.

On Sunday, the Washington Commanders will be eyeing the forecast as they prepare to host the New York Giants at 1 p.m. at Northwest Stadium in Landover. Meanwhile, the Ravens are on the road against the Atlanta Falcons in a stadium with a retractable roof.

In Anne Arundel County, Annapolis’ Office of Emergency Management is forecasting coastal flooding in low-lying areas of the city and high tides on Sunday.

That moderate tidal flooding is possible along western shores of the Chesapeake Bay and alongside the Potomac, particularly Annapolis, according to the NWS’ 7-day weather hazard outlook.

Across the bay, Ocean City Police rescheduled Sunday’s Endless Summer Cruisin’ events due to forecasted strong winds and heavy rain, said spokesperson Ashley Miller.

The resort city recently cancelled their three-day rock music festival, Oceans Calling, after a nor’easter swept across the East Coast last month.

Meteorologists from WJZ, Baltimore’s CBS affiliate, issued a “First Alert Weather Day” for Sunday — a special designation to warn the public about hazardous weather conditions in advance.

“Just stay as safe as you can be with any impactful weather,” Timmers said.

This story has been updated.