NWS-Green Bay Forecast Discussion

						FXUS63 KGRB 111732
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
1132 AM CST Sun Jan 11 2026

Updated aviation portion for 18Z TAF issuance

.KEY MESSAGES...

- There is a chance of light snow accumulations across northern
  Wisconsin tonight.

- Light mixed precipitation is expected late Monday night into
  Tuesday night, with accumulating lake-effect snow expected in
  north-central Wisconsin late Tuesday night into Wednesday.

- Temperatures will rebound to above normal early next week, then
  fall again into midweek.

&&

.DISCUSSION...
Issued at 253 AM CST Sun Jan 11 2026

The heaviest snow has ended across the region with all headlines
dropped across the area. Some light snow or flurries will continue
early this morning as a mid-level shortwave tracks through the
western Great Lakes region with lake effect snow hanging on for a
few hours more across Vilas County. Additional snowfall amounts
early this morning will be very light, on the order of a few
tenths of an inch. Clearing is expected across all but north-
central Wisconsin once the snow showers end this morning, but
this will short-lived, as clouds will increase ahead of a clipper
system approaching from the west later in the afternoon.

This weak clipper system will brush through northern Wisconsin
tonight, which could bring light accumulations and slippery roads
across this area. Snowfall amounts tonight will again be light,
with less than an inch expected.

A second, stronger clipper arrives late Monday night, bringing
light mixed precipitation through Tuesday night. Accumulating
lake-effect snow is expected over north-central Wisconsin late
Tuesday night into Wednesday. Snowfall amounts from this system
again look to be on the lighter side, with at most a couple of
inches across the lake-effect region of Vilas County

Additional chances for light snow arrive Thursday into Friday
night, and last into the weekend; however, no big storms are
anticipated and details remain uncertain this far out.

Temperatures will warm to above normal early next week. A decent
surge of colder air and gusty north winds follows the midweek
clipper system, leading to cooler temperatures for the latter half
of the work week and into next weekend.

&&

.AVIATION...for 18Z TAF Issuance
Issued at 1127 AM CST Sun Jan 11 2026

Lows clouds have been more persistent than previously thought, so
have maintained low ceilings through late afternoon. A weak
clipper system will bring a brief period of light snow (with
MVFR/IFR vsbys) to northern WI, with accumulations of a half inch
or less expected. The snow will shift east of the forecast area
after midnight. Aside from some lingering MVFR ceilings in far
north central WI late tonight, VFR conditions are expected
to prevail into Monday.

Moderate westerly winds are anticipated through much of the
TAF period.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

DISCUSSION.....Kurimski
AVIATION.......Kieckbusch