Flats with a fairly soft or sandy bottom carpeted with low weeds, with patches of coontail or cabbage rising above the carpet, attract walleyes. Submerged weeds develop as the water warms in the summer. Weedy flats hold baitfish that attract walleyes at night. In fall, weeds decline and small fish are flushed from cover. Walleyes feed aggressively throughout this period.
Walleyes can feed in dim light.
They have a feeding advantage over most prey species after dark. When fishing these humps I rely on my depthfinder to tell me if anyone is home on these humps. I usually like to look for a good shelf that comes out from an island that has boulders on it. This is the structure that many walleye key in on to rest and ambush their prey as they slide back and forth from the hump to deep water. These are transition areas where the fish come to feed.