NWS-Milwaukee/Sullivan Forecast Discussion

						FXUS63 KMKX 101006
AFDMKX

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
406 AM CST Wed Dec 10 2025

.KEY MESSAGES...

- Another round of accumulating snowfall is expected this
  morning, with generally up to an inch possible. Some freezing
  drizzle will be possible as the snow is moving in. Northerly
  winds gusting to 35 mph are expected as a cold front drops
  through. The morning commute will likely be impacted by the
  lingering wintry weather. A Winter Weather Advisory remains
  in effect for much of the forecast area until 9 am.

- Additional rounds of light snowfall are then possible at times
  later Thursday through the weekend.

- Below normal temperatures continue through next weekend, with
  wind chills -15 to -30 degrees Friday night and Saturday
  night.

&&

.SHORT TERM...
Issued 406 AM CST Wed Dec 10 2025

Today and Tonight:

A final round of accumulating snow will drop through southern
Wisconsin this morning on the back side of low pressure. Up to
an inch of additional accumulation is possible. Not out of the
question to see a little freezing drizzle ahead of the snow
before better saturation aloft occurs in the ice growth region.
Northerly winds will pick up this morning as well as colder air
wraps in behind the low. Given the wintry weather and blustery
winds expected during the morning commute, opted to extend the
Winter Weather Advisory for western areas until 9 am, keeping
the 9 am expiration for eastern counties.

Snow will come to an end by late morning, with dry weather
expected into the afternoon. Could see a little light snow in
southern and western portions of the forecast area late
afternoon into early evening as a weak shortwave rolls through.
Will see a dusting at best with this round. Colder air will
continue to push in tonight, with temperatures dropping into
the single digits by daybreak. Light winds and clearing skies
are also expected, so could see temps even dip below zero by
morning.

DDV

&&

.LONG TERM...
Issued 406 AM CST Wed Dec 10 2025

Thursday through Tuesday:

Dry weather and well below normal temps are expected under
high pressure Thursday. It still looks like light snow may clip
the southwest forecast area Thursday night, as a shortwave zips
through the region. Will have to keep an eye on model trends
with this system, as a wobble north could bring a couple inches
of accumulation into at least the southwest.

Another shortwave is expected to move through Friday, with
models suggesting a little light snow possible. Even colder
temps will move in behind this wave, with highs likely not
getting out of the single digits over the weekend. Lows will be
below zero at night, with wind chills of 15 to 30 below. Cold
weather headlines will be possible both Friday night and
Saturday night, with the coldest wind chills expected Saturday
night into early Sunday. Another wave may clip the area on
Saturday, with more snow chances possible.

Winds will become southerly Monday into Tuesday on the back
side of high pressure and as a trough of low pressure approaches
from the west. This should result in warming temps early next
week, with highs back around normal by Tuesday.

DDV

&&

.AVIATION...
Issued 406 AM CST Wed Dec 10 2025

A final round of accumulating snow will drop through southern
Wisconsin this morning on the back side of low pressure. Up to
an inch of additional accumulation is possible. Not out of the
question to see a little freezing drizzle ahead of the snow.
Northerly winds will pick up this morning as well, with gusts
to 30 knots possible. Snow will come to an end by late morning,
with dry weather expected into the afternoon. Could see a little
light snow in southern and western portions of the forecast
area late afternoon into early evening as a weak shortwave rolls
through. Will see a dusting at best with this round. Winds will
become lighter later today into tonight as well.

Lower ceilings will hang around throughout the day today,
with improvement from the north this evening into tonight as
the drier and colder airmass pushes in. Visibilities will
improve behind the precip this morning.

DDV

&&

.MARINE...
Issued 406 AM CST Wed Dec 10 2025

Northerly gales will continues to develop this morning across
the southern two-thirds of Lake Michigan behind departing low
pressure. The brisk winds will then gradually diminish tonight,
as high pressure of 30.1 inches approaches from the west. A
period of northwesterly gales may then return Friday night into
Saturday as a strong arctic front moves through the Great Lakes
region. Heavy freezing spray may also develop late week into the
weekend as the colder airmass moves in.

DDV

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...Winter Weather Advisory...WIZ046-WIZ047-WIZ051-WIZ052-WIZ056-
     WIZ057-WIZ058-WIZ059-WIZ060-WIZ062-WIZ063-WIZ064-WIZ065-
     WIZ066-WIZ067-WIZ068-WIZ069 until 9 AM Wednesday.

LM...Gale Warning...LMZ080-LMZ673-LMZ675-LMZ777-LMZ779-LMZ874-
     LMZ876-LMZ878 until 6 PM Wednesday.

     Gale Warning...LMZ366-LMZ565-LMZ567-LMZ669-LMZ671-LMZ868-
     LMZ870-LMZ872 until 6 PM Wednesday.

     Gale Warning...LMZ643-LMZ644-LMZ645-LMZ646 until noon
     Wednesday.

     Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 5 AM
     Wednesday.

&&

$$

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