554
FXUS63 KABR 271540
AFDABR

Area Forecast Discussion
National Weather Service Aberdeen SD
1040 AM CDT Tue Oct 27 2026

.KEY MESSAGES...

- Patchy to areas of fog expected late tonight through early
Wednesday morning. It could be dense at times, especially between
the Missouri and James River with a probability of visibility of
a quarter mile or less at 50 to 80%.

- Rain chances return to the region Wednesday, with the highest
chances of 60-85% James Valley and eastward by afternoon. Weak
thunderstorms are possible.

&&

.DISCUSSION...
Issued at 1039 AM CDT Tue Oct 27 2026

The region remains socked in with low stratus this morning. Adjusted
temperatures accordingly through tonight with stratus, drizzle, and
fog in mind. Wednesday is a bit trickier, with some clearing ahead
of the next low expected. However, morning fog and persistent, if
higher, cloud cover in the east prompted a lean toward
ConsShort/HRRR/ConsAll over NBM. Some of the fog may be dense on the
edges of the stratus in central SD, but pinpointing exact extent of
the lowest visibilities is too low confidence right now for any
thought of a headline. Generally, though, vsby down to 1/2 to 2
miles will be widespread.

A weak low stretches northeast to southwest near the Coteau by
Wednesday afternoon with some shortwave energy trailing over central
SD. Both of these features will produce some rain showers. Can`t
rule out a rumble of thunder across the east along the front,
either. Drier mid levels do move in behind this front, but high
pressure at the sfc and the latent moisture from recent rain will
likely lead to additional fog Wednesday night into Thursday morning
before clearing.

Friday night into Saturday, a Plains low pushes some additional
precipitation into the region. Another break is expected on Sunday
before yet another low pressure system potentially affects the
region Monday into Tuesday. Forecast temperatures are warm enough to
support all rain over the next week.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 633 AM CDT Tue Oct 27 2026

Terminals KABR,KATY,KPIR,KMBG

LIFR/IFR cigs and MVFR vsbys will likely be maintained at all
terminals through the morning hours today. Visibility should
start to improve late this morning or early afternoon as
southeast winds turn gusty between 15-25 kts. Low clouds will be
stubborn to clear though with improvements not expected until
mid to late afternoon at the earliest. KABR/KATY may get briefly
into MVFR cigs late this afternoon and evening. Some partial
clearing will be possible late this afternoon at KPIR and
possibly KMBG where VFR conditions will be more probable.
Extensive cloud cover will return to the entire area overnight
with LIFR/IFR cigs and vsbys possible at KABR and KATY.

&&

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

&&

$$

DISCUSSION...20
AVIATION...Vipond