Mandan, North Dakota 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

610
FXUS63 KBIS 030009
AFDBIS

Area Forecast Discussion
National Weather Service Bismarck ND
609 PM CST Mon Feb 2 2026

.KEY MESSAGES...

- Light accumulating snow will taper off over central North
  Dakota this evening.

- Patchy fog is possible over western North Dakota this evening
  into Tuesday morning. The fog may expand eastward into
  central North Dakota late tonight into Tuesday.

- Low clouds, patchy fog, drizzle or freezing drizzle, and
  periods of light snow or flurries will remain possible over
  much of western and central North Dakota into Wednesday.

- Near to above normal temperatures favored through this week.
  Thursday is expected to be the warmest day with highs in the
  upper 30s northeast to upper 50s far southwest.

&&

.UPDATE...
Issued at 607 PM CST Mon Feb 2 2026

Over the last few hours, a pocket of heavier snow showers has
moved through Mountrail and western McLean Counties, and now
into eastern Mercer and approaching Oliver Counties at the time
of this writing. Visibility as low as half a mile has been
observed with this quick moving area of snow, but recent radar
reflectivity indicates a slight weakening trend. This snow could
reach the Bismarck/Mandan area around 7 PM CST if it holds
together.

Webcams and surface observations show patchy dense fog from
eastern Stark and western Morton Counties through Grant County,
which lines up well with recent HRRR visibility guidance.
Forecast confidence in this evolving into a more widespread fog
event remains low.

No major changes were made to the forecast for this update, but
we will need to evaluate the potential for freezing drizzle
across parts of central North Dakota later tonight. Recent RAP
soundings at Bismarck, for example, project all necessary and
favorable ingredients to be present for several hours. It may
however be cold enough in the saturated layer to the north and
east for any light precipitation to fall as flurries. This will
be the main forecast concern that needs addressing in the next
update.


&&

.DISCUSSION...
Issued at 127 PM CST Mon Feb 2 2026

Light snow will continue to track southeast and taper off
through the afternoon. Currently, light snow was indicated over
much of central North Dakota. There were some pockets of
moderate snow along the Highway 52 corridor from Minot to
Jamestown and along the I-94 corridor over Kidder and Stutsman
counties. All of this activity was tracking to the southeast.
From webcams it looks like most of the accumulations were light,
but there were times when the snow was coming down pretty good.

For late this afternoon and tonight, light snow will taper off
over central North Dakota. We added some patchy fog over western
ND and portions of the south central. Latest Cams are showing
hints of some fog mostly over the west, but possibly expanding
east into central ND late over night or into Tuesday morning.
With cams not too excited in low visibilities, kept the mention
of fog to patchy to start. However bufkit soundings and the RAP
and HRRR low level moisture products keep the lower layers of
the atmosphere well saturated tonight and Tuesday and even into
Wednesday.

A shortwave tracking south through eastern Montana Tuesday and
a northern stream cold front dropping south through North Dakota
Tuesday evening, will each keep a low probability of a mixed
bag of precipitation over the forecast area. At this time it
does not appear that QPF amounts will be significant, but if
the precip would fall as freezing drizzle or light freezing
rain, there could be travel impacts due to slick roadways. Any
snow that would fall is not expected to produce significant
accumulations. There is not a clear signal for one precip type
over the other, and snow and/or freezing drizzle will both be
possible. It does appear that the mixed precip threat is higher
over the west and south central, compared to the north central
and into the James River Valley.

Cloudy skies, patchy drizzle/freezing drizzle and fog, with
light snow or flurries will remain in the forecast through
Tuesday night and possibly into Wednesday morning. Eventually,
during the day Wednesday and especially by Thursday we see a
significant warmup with temperatures climbing into the upper 30s
around the Turtle Mountains, to the upper 50s in the far
southwest. As we head into the weekend we see a western North
America Ridge with an eastern North America trough. We will be
setting on the transition between the two, thus quite a bit of
uncertainty in the temperature forecast. We see a drop in
temperatures on Friday and then a gradual rise thereafter, but
the NBM ensemble spreads are pretty high through this period,
which is reasonable as we are sitting on the transition between
the western ridge and eastern Trough. A hit or miss rain or snow
shower can not be ruled out after Wednesday but for the most
part we are expecting mostly dry conditions from Wednesday
through the weekend.

&&

.AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/...
Issued at 607 PM CST Mon Feb 2 2026

Widespread low ceilings are expected across western and central
North Dakota through much of the forecast period. Primarily IFR
west and MVFR central this evening, transitioning to LIFR west
and IFR central (but not as far east as KJMS) later tonight into
Tuesday morning. Tuesday afternoon will likely see improvement
to at least MVFR ceilings at all terminals, with VFR possible in
the west.

Several meteorological phenomena could cause visibility
restrictions at various times throughout the forecast period.
Light snow remains possible this evening, primarily from around
KMOT to KBIS. Areas of freezing fog/mist could develop across
the western half of the state this evening through Tuesday
morning. Freezing drizzle or flurries could develop later
tonight across central North Dakota. Additional low to medium
chances for mixed precipitation then return to the area Tuesday
afternoon, but timing and location confidence remains low.

Light and variable winds are expected through Tuesday morning.
Then Tuesday afternoon winds are forecast to become west-
northwest around 10-15 kts in western North Dakota, and turning
from southwest to west-northwest around 5-10 kts in central
North Dakota.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

UPDATE...Hollan
DISCUSSION...TWH
AVIATION...Hollan