DETROIT (AP) — The National Weather Service has issued a flood watch for southeast Michigan, effective from this evening through Wednesday evening. Affected Areas: The watch includes the counties of Bay, Genesee, Huron, Lapeer, Livingston, Macomb, Midland, Oakland, Saginaw, Sanilac, Shiawassee, St. Clair, Tuscola, Washtenaw, and Wayne. Impact: Excessive rainfall