textproduct: Aberdeen

KEY MESSAGES

- Winds will increase today, with a 40-60% chance for gusts to be greater than 45 mph on the eastern edge of the Sisseton Hills, along the I-29 corridor.

- Temperatures today will be 5-15 degrees warmer than normal, with highs in the low 60s of the Sisseton Hills and in the low 60s to low 70s over central and the rest of northeastern SD.

UPDATE

Issued at 1215 PM CDT Sat Oct 17 2026

Updated discussion for the 18Z TAFs below.

UPDATE Issued at 931 AM CDT Sat Oct 17 2026

Allowed the Frost/Freeze Advisory to end at 9am as locations within this advisory have reached above freezing. Current temps range in the mid 30s to the upper 40s, warmest along the eastern slopes of the Sisseton Hills per downsloping winds. Issued an SPS for this area until 18Z as obs have reported peak wind gusts between 40 to 50 mph within the past hour. Winds will diminish in this area slightly by the midday, however, daytime heating and ongoing southwesterly flow here will keep winds breezy, with gusts to 40 mph this afternoon and evening before diminishing overnight. Otherwise, quiet conditions continue with clear skies and winds west of the Coteau out of the south and southwest with gusts of 20 to 30 mph through the afternoon and evening. Forecast remains on track.

UPDATE Issued at 605 AM CDT Sat Oct 17 2026

See below for an aviation forecast discussion for the 12Z TAFs.

DISCUSSION

Issued at 121 AM CDT Sat Oct 17 2026

Southerly winds have been gusting up around 20-30 mph at times early this morning behind the high surface pressure that moved out of SD overnight. While these winds are expected to calm slightly during the morning for most of the area, stronger gusts will stick around over the Prairie Coteau through the evening. This is because the southerly flow of the winds will cause downsloping winds to occur increasing the wind speeds. There is a 40-60% chance for wind gusts to be at or slightly greater than 45 mph on the eastern edge of the Prairie Coteau, along the I-29 corridor, Saturday morning. These gusts will back off slightly during the afternoon and evening, though they could still gust up to 40 mph at times.

The southerly winds will help to warm temperatures today and Sunday, creating pleasant temperatures this weekend. Highs today are about 5- 15 degrees warmer than normal over central SD and portions of northeastern SD, getting up in the 60s to low 70s. Sunday will be about 5-10 degrees warmer than normal over central and northeastern SD, with highs in the 60s. A cold front will be moving through central and northeastern SD and west central MN Sunday. While this will not cause the high temperatures to cool too much on Sunday, it will cause the lows on Sunday night and Monday morning to be in the 30s over most of central and northeastern SD, except over the Prairie Coteau, which will be in the low 40s. These cooler temperatures could cause some pockets of frost to form, especially over north central SD. Precipitation is not expected through the weekend and into the beginning of next week, as dry air has moved in aloft over SD. This dry air will keep rain from forming as well as skies clear or mostly clear this weekend into the beginning of the work week.

AVIATION /18Z TAFS THROUGH 18Z SUNDAY/

Issued at 1215 PM CDT Sat Oct 17 2026

Terminals KABR,KATY,KPIR,KMBG

VFR cigs will continue through the TAF period. Winds will remain gusty out of the south and southwest at KABR and KATY with gusts of 20 to 35kts through the rest of the afternoon and continuing through late tonight, highest along the eastern slopes of the Sisseton Hills per downsloping effect. A dry cold front will track northwest to southeast across the region Sunday and exit the region by the late afternoon. Winds ahead of the front will continue out of the south and southwest before switching out of the north and northeast behind the fropa.

ABR WATCHES/WARNINGS/ADVISORIES

SD...None. MN...None.