Two weeks' notice: Winston-Salem/Forsyth County Schools in North Carolina voted on Oct. 28 to close schools on Nov. 12 for a "day of kindness, community and connection."

Five days' notice: On the evening of Wednesday, Nov. 17, Ann Arbor Public Schools in Michigan announced that schools would be closed the following Monday and Tuesday, extending Thanksgiving break for a full week. The district cited rising COVID-19 cases and staff shortages.

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