754
FXUS63 KABR 251737 AAC
AFDABR

Area Forecast Discussion...UPDATED
National Weather Service Aberdeen SD
1237 PM CDT Sat Apr 25 2026

.KEY MESSAGES...

- High temperatures 5 to 15 degrees below normal expected
  through the middle of next week. Highs are expected to be in
  the upper 40s to 50s through that period.

- Widespread rain expected Sunday and Monday. Upwards of 1" of
  rain is expected east of a line from Eureka to Presho through
  Monday night. Highest totals, perhaps as much as 1.5"-2",
  will occur east of the James River Valley.

&&

.UPDATE...
Issued at 1225 PM CDT Sat Apr 25 2026

Updated discussion for the 18Z TAFs below

UPDATE Issued at 1011 AM CDT Sat Apr 25 2026

Current radar indicates a band of light to moderate rain
extending along and east of a line from Miller through Wheaton on
the backside of a cold front, within an area of stronger
925-850mb southwest to northeast oriented FGEN and east/southeast
of stronger 700mb FGEN over central SD. Its upper level low
continues to spin nearly stationary over Saskatchewan. CAMs
indicate rain continuing over this area through the midday with
HRRR indicating another band or bands of light rain moving in from
the south and over this same area through the afternoon through
the evening. Precip is forecast to move out of this area by the
late evening or so. Additional mean precip amounts through 06Z
tonight range from a quarter to potentially a half inch along and
and east of a line from Clark to Ortonville with the highest
amounts over east central SD. Otherwise the rest of the CWA will
remain overall dry with satellite indicating clearing skies over
north central SD. Highs will be cool today ranging in the 40s and
50s. Other then updating the pops through this evening, the
forecast remains on track.

UPDATE Issued at 628 AM CDT Sat Apr 25 2026

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

&&

.DISCUSSION...
Issued at 153 AM CDT Sat Apr 25 2026

Rain is ongoing this morning over parts of central and eastern South
Dakota. Rain rates have been fairly light this morning, just a few
hundredths per hour in the heaviest rainfall. Chances for rain will
stick around through this afternoon over central and northeastern
South Dakota as well as western Minnesota, before transitioning to
just areas east of the James River Valley this evening. Through the
overnight period tonight, up to a quarter of an inch will be
possible over eastern South Dakota (around and southeast of the
Watertown area), with locally higher amounts up to half an inch
possible. Rainfall totals decrease moving northeast, with little to
no accumulation expected northwest of a line extending from Aberdeen
to Gettysburg. A handful of flashes of lightning has been observed
via satellite in some of the rain further south in Nebraska early
this morning in an area of very marginal (