Okay, so people make fun of the bad forecasts of economists. Fair enough. But economists are trying to forecast actions of sentient, prospectively focused creatures.
Hurricanes are just big unruly piles of wind. But we can't forecast THOSE either. Check out this "ensemble" forecast for the next week (click for an even more incoherent image):Of course, if we can't predict the actions of "big unruly piles of wind" I guess forecasts about Congressional votes are also off the table.