The winter weather system we have been talking about for the past couple of days will roll in late tonight and continue through Thursday and into Thursday night. The system will not be as strong as originally anticipated, but will bring a band of 1 to 3 inches of snow to the southeastern portion of our KSFY coverage area.
Areas of light freezing drizzle will develop after midnight tonight with light snow developing by or shortly after daybreak tomorrow. Snow will continue through tomorrow and into tomorrow night. Overall snow totals will range from about 1 to 2 inches with slightly higher amounts possible in some locations. Northwesterly wind gusts from 20 to 30 mph will create areas of blowing snow throughout the day tomorrow. If you are traveling, be prepared for some issues with visibility, especially in rural areas. Snow will gradually diminish from southwest to northeast tomorrow evening.
Bitterly cold arctic air will plunge southward behind this system. By the weekend, highs will only reach the teens with morning lows dropping to the single digits. Christmas Eve and Christmas Day will be bitterly cold with morning lows hovering either side of zero and highs only in the single digits to low teens.
In the meantime, we get one more day of above-average high temperature day before things change. Today will be mostly cloudy with a bit of sunshine at times this afternoon. Highs will range from the upper 30s in Sioux Falls to the low 50s across south central South Dakota. it will be a bit breezy today. Wind will be from the southeast with occasional gusts to between 20 and 30 mph.