The NWS did send a team to the Jarrettsville area Saturday afternoon to evaluate if there was a tornado touchdown, the county's Thomas said. The county reported Sunday that the initial conclusion was reached that the damage was likely to have been caused by a tornado. A final determination that it was a confirmed tornado was announced Monday afternoon.
Other parts of the county experienced heavy rainfall and localized flooding Friday night, Thomas said; however, "no other serious incidents were reported."
In addition, he said, no injuries were reported to the EOC as a result of the storm.
With regard to notifications, Thomas said the Division of Emergency Operations issued a tornado warning at 6:53 p.m. Friday, followed by emergency telephone calls through a countywide alert system at 7:03 p.m. The warning remained in effect until 7:30 p.m., he said.
A tornado touched down in Fallston on the evening of June 1, damaging several commercial buildings and homes and knocking down trees and power lines in the corridor along routes 1 and 147.
Elsewhere in the Baltimore region, Friday's storm first prompted a tornado warning at about 6:30 p.m. covering Cockeysville and later Phoenix, Sparks and Monkton. Baltimore County emergency officials reported seeing a funnel cloud near Brooklandville at 6:30 p.m.
By about 10 p.m., all of the thunderstorm activity had moved east of the Chesapeake Bay, Konarik said. The Baltimore region now appears in the midst of a week-long dry stretch.
Baltimore Gas and Electric Co. reported at about 10:30 p.m. Friday that there were 47 power outages in Baltimore County, 200 in Harford County, 400 outages in Howard County and 234 in Baltimore City.
Baltimore Sun Media Group reporters Scott Dance, Steve Kilar, Bryna Zumer and Allan Vought contributed to this article.