textproduct: Aberdeen

KEY MESSAGES

- Snow showers and flurries are expected to exit this morning. Little to no additional accumulation is expected.

- Bitter cold will continue through Monday morning. Highs will be in the single digits below to single digits above zero, with lows ranging from -5 to -15. The coldest air will be over far northern and northeastern South Dakota into west central Minnesota. A Cold Weather Advisory is in effect tonight for portions of the area east of the Missouri River for wind chills of -25 to -35.

- Temperatures briefly return to near normal values Monday afternoon, with highs in the teens east to mid 30s south central.

SHORT TERM /TODAY THROUGH MONDAY AFTERNOON/

Issued at 343 AM CST Sun Jan 25 2026

Scattered flurries continue across the area early this morning with some likely measurable light snow near Mobridge and between Mobridge and Aberdeen. This snow is expected to exit to the south and east this morning as a 1040s high builds in from the northwest. The clouds continue to complicate the temperature forecast in the meantime, however. Expect a drop in hourly temps as the swath of clouds clears, but highs for the day may be too low given current readings just above and below zero. The reinforcing caa in the upper trough may not reach the cwa in time to save the forecast and could see adjusting Ts accordingly with the expectation that they will fall this morning.

The upper trough slides southeast tonight leaving westerly flow and waa at 850mb for Monday morning. Dry conditions are forecast after this morning and temps are expected to climb into the teens across the east and into the mid 30s in south central SD for Monday. Before that waa spreads into the cwa, though, issued a Cold Weather Advisory for tonight with winds around 8 to 15 mph causing wind chills of -25 to -35 east of the Missouri River. Some locations near the Leola Hills may see advisory criteria this afternoon before the 0z start time with the northwest winds.

LONG TERM /MONDAY EVENING THROUGH SATURDAY/

Issued at 343 AM CST Sun Jan 25 2026

Monday night starts the long term when a cold front makes its way north to south across the region. This cold front is expected to be south and out of our area by Tuesday morning. In the upper levels, we remain in a northwesterly flow pattern with a ridge off to our west over ID. This ridge will gradually be displaced as a low pressure system makes landfall in the PacNW. However, the ridge gets deformed by this low which looks to slide down the eastern side of the Rockies. Little impact is expected from this low in our forecast area. There does look to be some impact from a seriously tilted trough spreading back west from a low over New England Thursday into Friday. This looks to bring some 15-20% chances of light snow to the region. The chance of more than an inch of snowfall is between 15 and 20%. Another round of light snow will be possible Saturday, but not much accumulation is expected. Winds are not expected to be anything out of the ordinary during the period.

AVIATION /06Z TAFS THROUGH 06Z MONDAY/

Issued at 1132 PM CST Sat Jan 24 2026

Terminals KABR,KATY,KPIR,KMBG

Areas of MVFR CIGs will move across the region overnight, with pockets of -SN and MVFR VBSY as well. Gradual improvements to VFR will occur during the day Sunday.

ABR WATCHES/WARNINGS/ADVISORIES

SD...Cold Weather Advisory from 6 PM this evening to 9 AM CST Monday for SDZ005>008-010-011-017>023-036-037.

MN...Cold Weather Advisory from 6 PM this evening to 9 AM CST Monday for MNZ039-046.