The Mayor may in times of public emergency or when existing circumstances or state of facts presents imminent and substantial danger of bodily harm to large numbers of people and/or widespread destruction of property, such as, but not limited to natural disorders caused by an Act of God, explosions, fires, tumult, diffusing explosive vapors, diffusing dangerous chemicals or liquids, civil emergency, power failures or aircraft accidents; proclaim in writing a state of emergency and coincident to the proclamation, the Mayor shall issue notice of a Special Meeting of Council to be held within 12 hours of the time of the proclamation. (Ord. 847)