textproduct: Sioux Falls

KEY MESSAGES

- Life-threatening cold remains in place through mid to late morning, then improves through the day. Added a cold weather advisory for late morning through midnight from east central SD into southwest MN for wind chills around -25.

- Very cold air remains in place through the weekend with the next better chance for -25 degree or colder wind chills Sunday night into Monday morning. From this afternoon through Sunday afternoon the wind chill will average about -10 to -25 degrees in most locations.

- A small chance for snow exists along the Missouri River tonight into Saturday morning. The impactful weather should remain south of the area.

DISCUSSION

Issued at 223 AM CST Fri Jan 23 2026

Cold air remain entrenched across the area through the weekend and into Monday morning. While the coldest air will diminish this morning, wind chill values will hover at -10 to -30 through Sunday afternoon, with the coldest readings near and within southwest MN. Another surge of winds and colder air will arrive Sunday afternoon and lead to wind chills of -25 to -35 Sunday night into Monday morning. The weak system moving through on Sunday that will drag this colder air south could bring some patchy very light snow but accumulations will be less than half an inch. Northerly winds on Sunday may gust to around 25 mph.

While there will be a few ups and downs with temperatures next week, the general consensus is for temperatures to remain below normal. Flow aloft remains more northerly than westerly which only allows for brief "warm-ups" before colder air settles in again. The chance for snow remains low next week as well with little ability to get any moisture into the area and/or any ability to produce lift for more than a few hours in this fast north- northwest flow aloft.

Some hints in the models that as we get into Friday through Sunday next weekend we may see a bit of a pattern shift which would allow temperatures to climb back to around normal.

AVIATION /12Z TAFS THROUGH 12Z SATURDAY/

Issued at 507 AM CST Fri Jan 23 2026

Other than the very cold temperatures, VFR conditions are expected. Some patchy very light snow will be possible near the Missouri River tonight, but should not have any direct aviation impacts.

FSD WATCHES/WARNINGS/ADVISORIES

SD...Extreme Cold Warning until 9 AM CST this morning for SDZ038- 053-059>062-065>071. Extreme Cold Warning until 11 AM CST this morning for SDZ039- 040-054>056. Cold Weather Advisory from 11 AM this morning to midnight CST tonight for SDZ039-040-054>056. Cold Weather Advisory until 9 AM CST this morning for SDZ050- 052-057-058-063-064. MN...Extreme Cold Warning until 9 AM CST this morning for MNZ098. Extreme Cold Warning until 11 AM CST this morning for MNZ071- 072-080-081-089-090-097. Cold Weather Advisory from 11 AM this morning to midnight CST tonight for MNZ071-072-080-081-089-090-097. IA...Extreme Cold Warning until 9 AM CST this morning for IAZ001>003-012>014-020>022-031-032. NE...Extreme Cold Warning until 9 AM CST this morning for NEZ013- 014.