* WHAT...South winds 15 to 25 knots with gusts up to 30 knots and waves 4 to 7 feet.
* WHERE...Grand Haven to Manistee.
* WHEN...Until 7 PM EST Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...Winds and wave heights will decrease slightly tonight, but will remain hazardous to small craft through Thursday.