Rain in Northern South Dakota

I don't know if any other airline has this (they probably do), but I'm flying Northwest today, so that's where I found it.

When you go to check the status of a flight that's already in the air, they provide a map showing the location of the plane and its planned route. The map also shows weather.

It's raining in the Dakotas. The plane that's coming to pick me up is diverting slightly northward to go around the storm.

I should head for the airport when the plane gets to the Continental Divide.