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Ashley Hermit, left, sleds with Julia Preston, 9, center, and her mother Caroline Preston, right, on a hill at the U.S. Capitol.

March 14, 2017 Ashley Hermit, left, sleds with Julia Preston, 9, center, and her mother Caroline Preston, right, on a hill at the U.S. Capitol. Matt McClain/The Washington Post

A powerful Nor’easter delivers every type of winter precipitation imaginable across the metro region.

A powerful Nor’easter in the Mid-Atlantic delivers every type of winter precipitation imaginable across the metro region.

A powerful Nor’easter in the Mid-Atlantic delivers every type of winter precipitation imaginable across the metro region.

Federal government offices in the D.C. region will open with a three-hour delay Tuesday because of the winter storm, the Office of Personnel Management announced.

[Updates: Slippery wintry mix icing over the D.C. region]

The following is a list of weather-related school closings and delays for Tuesday.

School delays and closings:

(The Washington Post)

● Alexandria City Public Schools will be closed.

● Anne Arundel County Public Schools will be closed.

● Arlington County Public Schools will be closed.

● Calvert County Public Schools will open on a two-hour delay.

● Charles County Public Schools will be closed.

● D.C. Public Schools will open on a two-hour delay.

● Fairfax County Public Schools will be closed.

● Fauquier County Public Schools will be closed.

● Frederick County, Md., Public Schools will be closed.

● Fredericksburg City Public Schools will be closed.

●Howard County Public Schools will be closed.

● Loudoun County Public Schools will be closed.

● Manassas City Public Schools will be closed.

●Manassas Park Public Schools will be closed.

● Montgomery County Public Schools will be closed.

● Prince William County Public Schools will be closed.

● Prince George’s County Public Schools will be closed.

● Spotsylvania County Public Schools will be closed.

● Stafford County Public Schools will be closed.

- Get the latest from Capital Weather Gang.

- Visit this page for updates from D.C. charter schools.

- See other weather closings in the D.C. region.