Boom, boom, boom

The National Weather Service has issued a severe thunderstorm watch for the Boston area through 9 p.m. - and a flood warning for Norfolk and Middlesex counties.

THE PRIMARY THREATS WITH THIS ACTIVITY WILL BE LARGE HAIL AND DAMAGING
STRAIGHT LINE WIND GUSTS. DANGEROUS CLOUD TO GROUND LIGHTNING IS
ALSO EXPECTED WITH ANY OF THESE THUNDERSTORMS. IN ADDITION...BRIEF
HEAVY RAINFALL MAY RESULT IN SOME LOCALIZED POOR DRAINAGE STREET
FLOODING.