(Updated at 5:20 p.m.) The National Weather Service has upgraded the previous storm watch to a warning. The warning is now effect until 5:45 p.m.

This is a strong storm that has the potential to bring damaging winds of 60 miles per hour and large hail.

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR… THE CENTRAL DISTRICT OF COLUMBIA… CENTRAL ARLINGTON COUNTY IN NORTHERN VIRGINIA… WESTERN PRINCE GEORGES COUNTY IN CENTRAL MARYLAND…

* UNTIL 545 PM EDT

* AT 500 PM EDT… A SEVERE THUNDERSTORM WAS DETECTED NEAR HOWARD UNIVERSITY… AND WAS MOVING SOUTHEAST AT 5 MPH. THIS STORM IS CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND DAMAGING WINDS IN EXCESS OF 60 MPH.

* LOCATIONS IMPACTED INCLUDE… GALLAUDET UNIVERSITY… US CAPITOL… NATIONALS PARK… RFK STADIUM… ANACOSTIA… KENILWORTH… CORAL HILLS… SEAT PLEASANT…

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH… MOVE INDOORS TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO SO… REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE NATIONAL WEATHER SERVICE.