768
FXUS63 KGRB 102047
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
247 PM CST Sat Jan 10 2026

Forecast discussion for routine afternoon forecast issuance

.KEY MESSAGES...

- Significant accumulating snow and hazardous travel conditions
  will continue across far northeast Wisconsin into tonight.
  Winter Weather Advisories remain in effect for Florence and
  Marinette counties, with a Winter Storm Warning for Door County.
  Additional light snow will occur across the rest of the
  forecast area, but accumulations should be light and generally
  under an inch.

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

- 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 245 PM CST Sat Jan 10 2026

A band of moderate snow had shifted northeast this afternoon,
and was situated across Florence, Marinette and Door County
at 2 pm. Snowfall reports have been spotty during the day, but
most reports in the headline areas indicated 2 to 3 inches.
Clearing occurred over the southwest part of the forecast area
after the snow band moved east, but low clouds and numerous light
snow showers were approaching north central and central WI, in
association with an upper low.

The snow band is expected to pivot WNW to ESE across far northeast
WI, then drop south through the region and gradually weaken later
this evening and overnight. Most of the impacts with this should
be felt across eastern WI, with continued significant
accumulations occurring in Florence, Marinette and Door counties
through midnight, and lesser amounts up to an inch across the rest
of eastern WI. The snow showers associated with the upper low
will be most numerous over the southwest part of the area into the
early evening, but patchy light snow showers or flurries could
persist into the overnight period. Clearing is expected across all
but north central WI Sunday morning, but this will short-lived,
as clouds will increase ahead of a clipper system later in the
afternoon.

Rest of the Forecast... A weak clipper system will brush through
northern WI Sunday night, and could bring light accumulations and
slippery roads there. A second stronger clipper arrives late
Monday night, bringing light mixed precipitation through Tuesday
night. Accumulating lake-effect snow is expected over north
central WI late Tuesday night into Wednesday. Additional chances
for light snow arrive Thursday night into Friday, and last into
the weekend, but no big storms are anticipated and details remain
sketchy this far out.

Temperatures will warm to above normal again 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.

&&

.AVIATION...for 18Z TAF Issuance
Issued at 1141 AM CST Sat Jan 10 2026

The moderate snow band will be shifting east of GRB/ATW/MTW
within the next hour or two, but will remain entrenched across far
northeast WI through this evening. Light snow will fill in across
the western TAF sites as an upper low drops southeast into the
region later this afternoon and evening. One last band of snow
will sag south through the region this evening and into the
overnight hours, with the main impacts occurring at the eastern
TAF sites. Light snow or flurries will end later tonight, with
clearing expected early Sunday.

Gusty NW winds will contoinnue through the TAF period. There will
be some LLWS tonight, ending late tonight into early Sunday.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until midnight CST tonight for WIZ012-
013-073.

Winter Storm Warning until 3 AM CST Sunday for WIZ022.
&&

$$

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

NWS GRB Office Area Forecast Discussion