Areas of light snow, sleet and freezing rain have moved through parts of the D.C. area and will continue to do so through the afternoon hours. It appears the timing was spot on with a late morning to lunchtime arrival and precipitation amounts look light just as forecasted.Winter Weather Advisory until 10am Saturday
The National Weather Service has extended the Winter Weather Advisory to other counties such as Loudoun in Virginia and Frederick in Maryland and points west.
The thought is that precipitation will continue through the afternoon with pockets of sleet and freezing rain before a lull in the precipitation for the evening commute. The NWS decided to keep the advisory through 10 a.m. tomorrow as light freezing rain and drizzle may be possible tonight, and a few slick spots will be possible on untreated roadways in those counties.
Closer to the D.C. metro area and points south and east, any frozen precipitation should change over to plain rain overnight. This rain will be very light through the overnight hours, but will pick up in intensity tomorrow as an area of low pressure skirts by along the coast.
The heaviest rainfall totals will be over the Eastern Shore, but even the D.C. metro could see up to 0.3 or 0.4 inches by the time the rain ends Saturday evening. Below is a look at the 4km NAM model forecast for late Saturday morning.4km NAM Model Forecast for 11am Saturday