From the National Weather Service in Grand Rapids:

A SYSTEM MOVING THROUGH THE GREAT LAKES REGION MAY BRING 4 TO 6 INCHES OF SNOW THURSDAY AND THURSDAY NIGHT MAINLY ALONG AND SOUTH OF INTERSTATE 96. LAKE EFFECT SNOW WILL CONTINUE THURSDAY NIGHT THROUGH FRIDAY NIGHT. TEMPERATURSE OVERNIGHT LOWS WILL BE IN SINGLE DIGITS AND DAYTIME HIGHS IN THE MID TEENS.
 
This is the coldest weather we have experienced so far this winter. Under normal circumstances birds only get approximately 10% of their diet from feeders. That number may bump up to 20% in winter due to snow hiding food sources. An exception to this is during periods of extreme cold and high winds. Birds are just as impacted by wind chill as we humans. The cold snowy weather this weekend is an example of when feeders and baths are most beneficial to wildlife. During extreme weather the percentage of a bird's diet derived from feeders is likely to be significantly higher than normal. Make sure your feeders are full and your bath is clean and filled with fresh water. Birds are going to have a tough weekend.