Yeah but if im not mistaken the original headlines were for it beginning 7PM tonight. Now, they have the north and west counties starting now. Looks like they touched on it in the 930 discussion.
Strong high pressure is building across Canada this morning,
advecting colder and drier air into the area. 12z KIAD RAOB
suggests dominant precipitation type would be sleet, but
observations are showing light rain with temperatures falling to
near or below freezing across northern Maryland, far
northwestern Virginia and eastern West Virginia. That coupled
with hi-res guidance showing freezing rain over those areas has
prompted us to start the winter weather headlines now instead of
later today. Impacts overall may be limited until this evening
given marginal temperatures and seasonally higher sun angle, but
icing impacts likely increase quickly after dark.