…WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING… …FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY… The National Weather Service in Sioux Falls has issued a Frost Advisory, which is in effect from 1 AM to 9 AM CDT Thursday. * TIMING…Wind Advisory this afternoon through this evening. Frost Advisory for overnight into early Thursday morning.