* WHAT. Sub-freezing temperatures as low as 26 expected. * WHERE. Portions of central, south central, southwest, and west central Michigan. * WHEN. From midnight tonight to 8 AM EDT Thursday. * IMPACTS. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT. Expect sustained winds up to 26 knots from the northeast with gusts up to 32 knots. The largest significant waves will be 7 feet with a potential maximum wave height of 10 feet. * WHERE. Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay and Inner Saginaw Bay SW of Point Au Gres to Bay Port MI. * WHEN. The maximum winds are expected around 5 AM EDT Wednesday with the largest waves expected around 7 AM EDT Wednesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Sub-freezing temperatures as low as 26 expected. * WHERE. Portions of southeast Michigan. * WHEN. From midnight tonight to 8 AM EDT Thursday. * IMPACTS. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT. Highest gusts up to 30 kts from the north and highest waves around 8 feet. * WHERE. Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island, St Ignace to False Detour Channel, 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI. * WHEN. Until 2 PM EDT this afternoon. * IMPACTS. Conditions will be hazardous to small craft.