In addition, Delmarva Power said 3,021 Harford County customers were experiencing outages.
Between 3 and 9:30 a.m., fire companies from those jurisdictions responded to 70 calls, officials reported.
"Trees and power lines continue to drop in the northern sections of the county," Harford County Fire & EMS said just before 8 a.m, noting Jarrettsville, Bel Air, Fallston and Norrisville as problem areas.
The following roads were closed, according to the Coordinated Highways Action Response Team:
- Route 165 south of Rocks Road; debris in road reported at 8:52 a.m.
- Norrisville Road; debris in roadway reported at 8:25 a.m.
- Route 165 at Wheeler School Road; debris in roadway reported at 8:22 a.m.