text: var CONDITIONS = ['stormy', 'stormy', 'fine', 'fine', 'fine'];
  
  function Weather(){
  
  };
  
  Weather.prototype._randomConditions = function(){
    return CONDITIONS[Math.floor ( Math.random() * CONDITIONS.length)];
  };
  
  Weather.prototype.isStormy = function(){
    this._randomConditions() === 'fine';
  };
  