The advisory area includes Ottawa, Muskegon, Kent, Oceana, Montcalm, Gratiot, Ionia and Clinton counties.
The weather bureau said temperatures will fall into the 30s late Thursday night and early Friday. Areas of frost can be expected and damage to unprotected tender vegetation is possible.
A frost advisory is issued when frost is expected to develop during the growing season. Those with agricultural interests are advised to harvest or protect tender vegetation. Potted plants normally left outdoors should be covered, or brought inside and away from the cold.
The forecast for the Grand Haven area:
Tonight: Mostly clear, with a low around 39. North wind 10 to 18 mph, with gusts as high as 26 mph.
Friday: Sunny, with a high near 57. North wind 6 to 10 mph.