766
FXUS63 KMKX 010321 AAA
AFDMKX

Area Forecast Discussion...UPDATED
National Weather Service Milwaukee/Sullivan WI
921 PM CST Sun Nov 30 2025

.KEY MESSAGES...

- Below normal temperatures and periodic chances for light snow
  are expected through the coming week.

- Monday snow chances have increased but amounts are expected to
  remain limited with up to 2 inches possible. Highest amounts
  to the south toward the WI/IL border.

&&

.UPDATE...
Issued 920 PM CST Sun Nov 30 2025

Lower level clouds have largely dissipated this evening, with
mainly high clouds expected overnight. Winds will be light
through the night as high pressure builds in from the west.
Chilly temps are thus still expected tonight given these
conditions along with the fresh snowpack and colder temps aloft.
The forecast looks on track through the remainder of the night,
with no significant updates anticipated.

DDV

&&

.SHORT TERM...
Issued 300 PM CST Sun Nov 30 2025

Tonight through Monday night:

The low will push out tonight with higher pressure following in
behind it which will allow some level of clearing skies tonight.
Although 1000-500mb thicknesses have come up to some degree
overnight clearing of any level with a snowpack should allow us
to cool off significantly tonight. Low expected to be in the mid
to upper single digits. Clouds will push back in late tonight
from the southwest as another weak system develops in lee of the
Rockies.

This system is expected to push through Monday afternoon/evening
bringing a quick hitting snow to southern WI. Overall this will
be a light QPF event for us with limited forcing as 700mb WAA
and some UL PVA push through the region. The best QPF will be
further south toward the IL/WI state line with little to nothing
toward central WI as the system tracks through central to
northern IL. Total QPF on the high end will be between 0.1-0.15.
While the DGZ may be fairly deep for a period, there will be
limited forcing within the DGZ for most of the event and thus
modeled SLRs have a bit on the high side with SLRs likely to be
in the 13-15:1 range. Precip will end overnight with snow totals
likely around a trace toward central WI to around 1-1.5inches in
southern WI with highest amounts not more than 2 inches
expected.

Kuroski

&&

.LONG TERM...
Issued 300 PM CST Sun Nov 30 2025

Tuesday through Sunday:

Active, fast northwest flow pattern will continue through next
weekend. This will maintain our temperature roller coaster ride
and a few additional bouts of light snow.

The next, quick weather making front will zip through the region
on Wednesday. The speed of the system and marginal moisture
availability will result in light snow showers, but negligible
accumulation potential, on the order of an inch or less. What this
front will do, however, is deliver a shot of much colder air. As
high pressure moves into the region Wednesday night, temperatures
will plummet to around zero, with the risk of being colder. Highs
on Thursday only look to rebound to around 10 degrees.

High pressure will shift to our east heading into next weekend,
and temperatures will gradually warm back up, though still remain
below average for early December. During the latter half of next
weekend and beyond, we will be watching for a potential clipper
system and another dose of colder air.

Gagan

&&

.AVIATION...
Issued 920 PM CST Sun Nov 30 2025

Light winds will prevail tonight along with few to sct clouds
between 4 and 5 kft through late evening and increasing high
clouds overnight. Mainly high clouds are expected early Monday,
with lowering cloud bases from southwest to northeast late
morning though the afternoon as a shortwave approaches. Light
snow along with lower clouds and visibilities are then expected
late Monday afternoon through the evening. Current expectations
for snow accumulations range from less than an inch north of
I-94 to up to 2 inches towards the WI/IL border. Snow to liquid
ratios of around 13-15 to 1 are anticipated, with light winds
continuing through the day tomorrow and into the evening.

DDV

&&

.MARINE...
Issued 300 PM CST Sun Nov 30 2025

Low pressure located over southern Quebec/Ontario this
afternoon will continue to rapidly move northeastward over the
Quebec province tonight. A Gale Warning has been extended for
Lake Michigan through 6 PM for continued gales. Small Craft
remains until 9 PM but also may need to be extended. Winds will
gradually ease tonight and Monday as high pressure builds
across the Great Lakes. Another area of low pressure will
quickly move across southern Canada Tuesday and Wednesday,
bringing a cold front and a brief chance of light snow to the
region. High pressure will then build into the Great Plains and
Midwest during the mid to late week time frame.

Kuroski

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.

&&

$$

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