Critical Mass Chicago takes place tonight, the last Friday of the month.

The monthly parade of bikes steps off from Daley Center at 5:30 PM.

While normally hundreds if not a few thousand bikers participate in Critical Mass when the weather is kinder, gentler and warmer, one would expect this evening’s ride to be somewhat smaller.

A weeks worth of extra cold weather and a few inches of snow this morning will probably discourage only the most hardy and hardcore bike riders from participating.

The good news for drivers is the traffic impact from those crazy bikers will probably not be significant.

Drivers should keep an eye out for Critical Mass bikers all the same.

Happy Friday!