215
FXUS63 KDLH 111758
AFDDLH

Area Forecast Discussion
National Weather Service Duluth MN
1158 AM CST Thu Dec 11 2025

.KEY MESSAGES...

- Light snow will be possible today and tomorrow. Any
  accumulations will be around an inch or less for most.

- Cold air arrives through the day Friday with the coldest
  temperatures expected Saturday and Sunday. Highs will be in
  the single digits above and below zero with morning lows in
  the teens and 20s below zero.

- Temperatures warm heading into the new week with a few chances
  for light snow.

&&

.DISCUSSION...
Issued at 423 AM CST Thu Dec 11 2025

High pressure was in place across the Upper Midwest and into the
Mississippi Valley. Low stratus was evident on satellite
downwind of Lake Superior across parts of northern Wisconsin and
the Upper Peninsula of Michigan. Another area of low stratus
stretched from northwestern Minnesota into central and
southeastern Minnesota and southwestern Wisconsin. Light snow
was observed under this cloud deck. As the day progresses, the
high will shift to the southeast as a clipper system passes by
to our south. Most of the snow from this system looks to remain
to our south, but a few flurries will be possible across
northeastern Minnesota with some energy aloft. This activity
would mainly be during the afternoon before ending with the loss
of daytime heating. Highs today will be in the teens with lows
tonight falling into the single digits. An upper low moving
across northern Manitoba Friday will drag a cold front across
Upper Midwest. This will bring light snow showers starting
during the early morning hours and continuing through the day
before ending during the evening as the low moves east of Lake
Superior. Snowfall totals from this clipper will be around an
inch or less. Slight higher amounts will be possible with lake-
effect snowfall across the Bayfield Peninsula and into northern
Iron County. This snow may linger into Saturday morning.

Another shot of colder air moves in during the day Friday behind
the cold front. High temperatures will likely be reached by late
morning or midday with readings in the teens before temperatures
fall through the afternoon and evening. Lows Saturday morning
will settle into the single digits and teens below zero. Wind
chills will be in the 20s and 30s below zero as winds will
remain elevated through the night as a pressure gradient remains
overhead between the departing low to the east and high pressure
building in from the west. Highs Saturday will likely remain
below zero with the only areas reaching positive territory being
near Lake Superior. The high dives to the south on Saturday
night into Sunday with another very cold night expected as lows
fall into the teens and 20s below zero. Winds will be lighter,
but wind chills will again be in the 20s to 30s below zero. Cold
Weather headlines may be needed both Saturday and Sunday
mornings. Winds turn southerly on Sunday bringing warm air
advection to the Upper Midwest and highs in the single digits
above zero.

The warmup will persist into the new week with highs in the
teens and 20s above zero Monday with 30s for Tuesday. A clipper
looks to slide by to the northeast of the region Sunday night
into Monday morning with perhaps some light snow showers across
the Arrowhead and some lake-effect along the South Shore.
Another clipper will take a similar track for Monday night into
Tuesday except perhaps a little further south. This will again
bring chances for light snow showers to mainly the Arrowhead
into the South Shore. The pattern will remain active into
midweek with another clipper possible along with temperatures
cooling slightly back to more normal levels.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1158 AM CST Thu Dec 11 2025

Largely VFR conditions persist into this evening with light and
variable winds. A quick push of snow moves from west to east
starting early Friday morning and should reduce visibilities and
ceilings to MVFR levels. Gusty northwest winds are expected behind
the snow.

&&

.MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/...
Issued at 949 AM CST Thu Dec 11 2025

Fairly calm winds today should become southwesterly into Friday
ahead of a passing front bringing light snowfall. As that front
passes, much stronger northwest winds are expected to strengthen
really quickly, especially along the North Shore where they will be
enhanced by downslope flow. Have increased winds from late Friday
afternoon through the day Saturday and issued a Gale Watch from 6pm
Friday to 6PM Saturday. Would expect the strongest gusts to be
Friday evening into early Saturday morning with isolated pockets of
storm force gusts possible, most likely between Grand Marais and
Silver Bay. Winds remain elevated through the day Saturday before
weakening into the day Sunday. Lake effect snow bands are expected
along the South Shore and in the open waters Saturday and Sunday
with very cold temperatures, which may reduce visibility at times.
Additionally, with very strong winds and very cold temperatures,
some freezing spray may be possible.

For the open water discussion, refer to the NWS Marquette Area
Forecast Discussion at weather.gov/mqt.

&&

.DLH WATCHES/WARNINGS/ADVISORIES...
MN...None.
WI...None.
MARINE...Gale Watch from Friday evening through Saturday afternoon for
     LSZ140>143.

&&

$$

DISCUSSION...BJH
AVIATION...Levens
MARINE...Levens