The mayors of St. Paul and Minneapolis will join mitten-covered hands Tuesday to talk about snow plowing.

The two cities have very different rules, but people on both sides of the river routinely forget, leading to lines of upset citizens at the impound lots and, presumably, lots of overtime for the tow truck drivers.

With the cost of plowing and ticketing, officials say, the cities actually don't make money on the snow emergency tickets and impound fees.

Minneapolis Mayor R.T. Rybak will cross the river to visit St. Paul Mayor Chris Coleman for a joint public reminder about the two cities’ complicated snow emergency rules. The mayors will gather at 11:30 a.m. in a parking lot on the west side of Mississippi River Boulevard, two blocks south of the Ford Bridge.

Not that there's a snowball's chance that everyone will remember, but here are the details of the Minneapolis rules and those in St. Paul.

The mayors also will remind people that they are required to shovel their sidewalks promptly after a snowfall to aid pedestrian safety.