Total Snowfall Accumulation Forecast by 3 AM Thursday:

Timing, Delays, Cancellations:

• Sleet & Snow mixed will re-develop between 3 and 5 PM and then become heavy, wet snow after 5PM.

• Heavy snow will continue through the evening before it tapers off  around midnight and ends between 1 and 3AM.

• Federal Government employees… I am 90% confident of a 2 hour delayed opening Thursday with Unscheduled Leave.
  

Accumulations:

• Generally 5 to 10″ can be expected across Northern Virginia and northern & central Maryland.

• The urban heat island of Washington DC and south Arlington will see accumulations of 4 to 6″.

• Totals across southern Maryland will range from 3 to 5″.

Heavy Wet Snow:

• Scattered Power Outages and downed trees are possible under the weight of this snow storm.

• Untreated roadways will become very slippery as temperatures drop into the upper 20s Thursday morning.