SVR STRM WRNG - HILLSDALE CNTY IN SE MI BRANCH CNTY IN SW MI UNTL 1230A : AT 1121P NWS 88D INDCTD A LN OF SVR STRMS CAPBL OF PRDCNG DMGG WINDS IN EXCESS OF 60. THESE SVR STRMS WERE LOCATED ALONG A LN EXTENDING FROM 22 MI E OF HILLSDALE TO 6 MI NW OF LITCHFIELD TO 12 MI NW OF UNION CITY AND MVNG S AT 30.