436
FXUS63 KABR 261119 AAA
AFDABR

Area Forecast Discussion...UPDATED
National Weather Service Aberdeen SD
619 AM CDT Sat Sep 26 2026

.KEY MESSAGES...

- The next round of rain continues this morning across eastern
  SD. Totals of a couple tenths of an inch are expected around
  and east of the Sisseton Hills/Prairie Coteau region. Totals
  up to a tenth of an inch are expected east of the Missouri
  River.

- Active pattern continues with additional chances for rain
  arriving Monday and continuing through Tuesday. There is a
  70-90% chance to see a half inch or more of rain between the
  Missouri and James Rivers and north of Hwy 14, with rainfall
  totals decreasing moving south.

- Expect temperatures near normal for the next few days, with
  highs in the upper 60s to low 70s. Signs point towards a
  slight cooldown by mid-week next week.

&&

.DISCUSSION...
Issued at 1254 AM CDT Sat Sep 26 2026

As of 1 AM CDT, rain is starting to move north into eastern SD.
This is much later than expected from previous forecasts and
will affect rainfall totals. It also looks like the main body of
the precipitation will be farther east than expected, further
affecting totals for areas along and west of the Sisseton
Hills/Prairie Coteau. Temperatures across the area are in the
upper 50s to low 60s with winds out of the southeast at
generally less than 10 mph.

Our next chance for precipitation will be Monday through Tuesday as
a low moves southwest to northeast across the Dakotas. Precipitation
amounts are expected to be higher with this event than our rain
today. Chance of more than half an inch are around 70-90% between
the Missouri and James Rivers north of Hwy 14 through Tuesday
morning. This is when most of the precipitation will fall, rain will
linger across eastern SD into the afternoon with minor additional
accumulations. This will be a more widespread event with
precipitation starting in central SD late Sunday night/early Monday
morning and moving east across the forecast area. Rain should come
to an end over eastern SD Tuesday afternoon.

Temperatures through the period will be right around to slightly
above average, particularly across central SD. There is a cooling
trend towards the end of the forecast, but its pretty slight and
only a few degrees below normal. Winds Monday afternoon south of Hwy
14 and east of the James could gust up to 30 mph, locally higher in
south central SD. Other than this, winds look normal through the 7
day forecast.

&&

.AVIATION /12Z TAFS THROUGH 12Z SUNDAY/...
Issued at 617 AM CDT Sat Sep 26 2026

Terminals KABR,KATY,KPIR,KMBG

IFR/MVFR conditions are expected to prevail for the next 24
hours at KABR and KATY in drizzle and fog. KPIR and KMBG will
see improvement after 21z Saturday to MVFR and then VFR. Fog may
develop early Sunday and drop sites back down.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.

&&

$$

DISCUSSION...13
AVIATION...20