Update: 4:25 p.m. Oct. 29

The federal government is closing offices to the public and for non-emergency employees tomorrow, Oct. 30. Emergency employees and telework employees are still required to work.

Original Story: Posted 1:55 p.m. Oct. 29

Loudoun County Public Schools and administrative offices will be closed tomorrow and all after-school activities are cancelled due to the continuing threat of Hurricane Sandy.

The National Weather Service has issued a flood warning for Loudoun County and surrounding counties in northern Virginia and Maryland until 9 p.m. tonight, which means flooding is expected to happen or is already happening. A flood watch remains in effect through Tuesday evening.

A high wind warning also remains in effect until 8 p.m. Tuesday. Winds from Sandy are expected to increase from 30 to 55 mph as the hurricane makes landfall tonight, with gusts up to 60 to 75 mph.

Sandy is expected to make landfall sometime this evening as a hurricane in either Delaware or southern New Jersey, according to the National Weather Service. It is then predicted to travel westward through Maryland and lose strength to become a tropical storm.