120
FXUS63 KFGF 251912
AFDFGF

Area Forecast Discussion
National Weather Service Grand Forks ND
212 PM CDT Fri Sep 25 2026

.KEY MESSAGES...

- Additional light rain is expected tonight through Saturday
  night, and there is the potential for widespread soaking rain
  early next week. These rain events may impact outdoor
  activities and harvest.

&&

.DISCUSSION...
Issued at 212 PM CDT Fri Sep 25 2026

...Synopsis...

Ridging over the Upper Midwest will continue to pull east
tonight, with a shortwave lifting into the Northern Plains. That
shortwave will head off into northern MN/Ontario tomorrow, with
southwesterly flow aloft behind it into the upcoming weekend.
Another, stronger shortwave will come out into the region
Monday, with the main upper trough axis arriving in the Rockies
or western Plains by Tuesday. The second shortwave will help
push an inverted surface trough and frontal boundary through the
forecast area early next week. Near zonal to southwesterly flow
setting up for mid-week. After that the ensemble members are all
over the place. The majority (37 percent) of the long range
solutions keep the Northern Plains in southwesterly flow aloft,
but there are a couple of other clusters with either broad
ridging or even northwesterly flow. With fairly high uncertainty
will keep the blended solution of low POPs and near average
temperatures.

...Rain tonight/tomorrow and again Monday/Tuesday...

Shortwave will move in from the southwest tonight and provide
some lift for light rain to develop in warm air advection.
Highest probability of rainfall amounts are around the tenth of
an inch to perhaps a quarter of an inch range. However, with
some weak MU CAPE of up to 500 J/kg, can`t completely rule out
some convective cells with heavier amounts. The decent pressure
gradient will bring some fairly breezy winds and with showers
aiding mix down can`t completely rule out some gusts up to 30
mph or so at times. A bit of a break on Sunday, then the
stronger system arrives early next week. Still some slight
variations in the exact track, but seem to be converging on a
solution with deformation band precipitation setting up over
northeastern ND and northwestern MN. Probabilities of amounts
over 1 inch in this area are 60 to 70 percent, and there is even
some 20 to 30 percent probabilities of over 2 inches Monday into
Tuesday. A soaking rain seems likely, although could still be
some variations in exactly where the heaviest amounts set up
before the period arrives.

&&

.AVIATION /12Z TAFS THROUGH 12Z SATURDAY/...
Issued at 1122 AM CDT Fri Sep 25 2026

Low ceilings will impact the region over the next 24 hours.
Impacts to visibility are expected to be minimal today. Starting
around 06Z Saturday, rain chances will begin to make their way
into SE ND and spread northeast across the region. Visibility
reductions are expected with these rain showers. By 18Z
Saturday, precipitation is expected to be confined to NW MN and
have exited into NE MN by 00Z Sunday. MVFR conditions will be
common today with some VFR working into NW MN this evening and
overnight. Increasing precipitation chances bring the return of
IFR and isolated LIFR conditions Saturday as they move east.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...None.
MN...None.

&&

$$

DISCUSSION...JR
AVIATION...LT