In cases of emergency which could not have been reasonably foreseen at the time of adoption of the budget, the governing body may authorize the expenditure of funds in excess of the appropriation by ordinance or resolution duly adopted by a majority vote of such governing body at a public meeting. Such ordinance or resolution shall set forth the facts concerning such emergency and shall be documented in detail in the minutes of the meeting of such governing body at which such ordinance or resolution was adopted. A certified copy of such ordinance or resolution shall be filed with the division.