The National Weather Service's Baltimore/Washington forecast office was still evaluating surveyed damage Wednesday afternoon from storms that swept through northern Maryland on Tuesday morning.
A weather service meteorologist visited areas where the storm hit and found some damage, though not a significant amount, said Jared Klein, a meteorologist at the Sterling, Va., office.
"There was some localized damage," Klein said, noting a large tree that was downed in Havre de Grace. "The radar did show some signs of rotation, but it doesn't necessarily mean it's a tornado."
It's possible the damage was caused by a microburst, when cold air falls rapidly through tall storm clouds, generating severe straight-line winds on the ground.
The meterologists expected to say later Wednesday afternoon whether there was any tornado activity or microbursts, Klein said.