In Bowie, Old Annapolis Road remains closed at Church Road.
Suspicious package briefly closes part of Constitution Avenue NW.
Morning trains on Manassas line were delayed.
After being closed since the morning and into the evening rush hour, Route 7 has reopened in both directions.
No one was injured.
Morning accident blocked five lanes of highway near Braddock Road.
Snow is expected to fall for several hours.
All northbound lanes have reopened after a three-car crash.