Shelter: if you're up in Michigan, or Minnesota, and it is fall or later, rank equal to water.
Food: Yup, need that too, unless you're built like Jabba the Hutt and without diabetes.
Guns: to fight off those who want your food.
Friends/relatives: to take turns watching.
But an ounce of prevention is worth a pound of preparation.
Vote out Obaama.
Educate your neighbors.
Cheers!
You can survive:
Three minutes without oxygen.
Three hours without shelter from the elements (heat, shelter, clothing, etc., during extremes)
Three days without water.
Three weeks without food.
Three months without human contact.