…RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 001, 002, 012, 013, 014, 020, 021, 022, 031, 032, 089, 097, 098, 256, 257, AND 258… The National Weather Service in Sioux Falls has issued a Red Flag Warning, which is in effect until 6 PM CDT this evening.