A strong cold front is sweeping across Texas, bringing Austin a sharp change from hot, humid weather to chilly, gusty conditions. Central Texas has another hot Thursday ahead, with temperatures around 90 degrees before the front moves in overnight into Friday. The front is expected in Dallas around 5 p.m., then Waco around 10 p.m., reaching Austin near 2 a.m. Friday. Scattered showers and isolated thunderstorms could accompany its passage. Severe storms are not expected, but brief heavy downpours and lightning are possible. By daybreak Friday, the front will have crossed all Central Texas. Austin temperatures will fall into the low to mid-60s. The National Weather Service has issued a wind advisory for Friday morning through Friday evening, with gusts as strong as 45 miles per hour. Outdoor Halloween decorations should be deflated or securely tied down. Friday afternoon temperatures will drop into the upper 50s and lower 60s. The weekend brings sunshine and low humidity. Winds remain gusty Saturday before settling Sunday, with weekend mornings in the 40s and 50s.