Originally Posted by terrehautian:
From what I understand, that 40% doesn't mean a 40% chance that the whole are will get rain. It means that it could rain up north of the viewing area but not south. Yesterday's forecast on wthi said a 50% chance of rain. It never rained a drop here in Terre Haute, but in Vincennes, it rained (and in Washington, etc.) pretty hard. Weather people will never be right all the time for everyone.
According to one of my friends who worked as a weather "person", a 40% chance of rain means that 40% of the viewing or forecast are WILL receive rain.