If during the fiscal year the City Manager certifies that there are revenues available for appropriation in excess of those estimated in the budget, the Council may make supplemental appropriations to fund the appropriations as desired or carry the excess into the next fiscal year.
(a) 
To meet a public emergency created by a natural disaster or man-made calamity affecting life, health, property, or the public peace, the Council may make emergency appropriations.
(b) 
In such case, the Council may authorize the issuance of emergency notes, but the emergency notes and renewals shall be paid not later than the last day of the fiscal year next succeeding that in which the emergency appropriations were made.
If at any time during the fiscal year it appears probable to the City Manager that the revenues available will be insufficient to meet the amount appropriated, he shall report to the Council without delay, indicating the estimated amount of the deficit, any remedial actions taken by him and his recommendations as to any other steps to be taken. The Council shall then take such further action as it deems necessary to prevent or minimize any deficit and for that purpose the Council may by ordinance reduce one or more appropriations.
At any time during the fiscal year the City Manager may transfer part or all of any unencumbered appropriation balance among programs within a department, division or office and transfer part or all of any unencumbered appropriation balance from one department office or agency to another. If the City Manager transfers from one department, office, or agency to another, then the City Manager shall provide a written accounting of all transfers to the City Council at the next regular City Council meeting.
No appropriation for debt service may be reduced or transferred, and no appropriation may be reduced below any amount required by law to be appropriated or by more than the amount of the unencumbered balance thereof.
The supplemental and emergency appropriations authorized by this section may be made effective immediately upon adoption of the ordinance or budget amendments.