827
FXUS63 KGRB 290441
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
1141 PM CDT Wed Oct 28 2026

Forecast discussion for routine evening forecast issuance

.KEY MESSAGES...

- Showers and isolated thunderstorms will come to an end
  overnight.

- Additional chances for scattered showers this weekend (20-40%)
  with increasing chances for rain (50-70%) and gusty winds early
  next week, peaking on Election Day.

- Hazardous conditions for small craft will come to an end
  Thursday morning. There may be a period of gusty winds
  along the bay that may result in hazardous conditions for
  small craft.

&&

.DISCUSSION...
Issued at 1141 PM CDT Wed Oct 28 2026

Scattered showers and isolated thunderstorms will come to an end
overnight as a cold front moves across the area. Clouds will be
on the decrease overnight into early Thursday morning. High pressure
will then build into the region Thursday afternoon. Abundant low
level moisture may result in skies becoming mostly cloudy again
during the day. Later in the day, mid-level moisture may result in
partly to mostly cloudy skies Thursday night. Tranquil conditions
should prevail through Saturday morning. There is still a great
deal of uncertainty on the northward extent of the rain, 20-40%
across central and east-central WI, on Saturday as the
Canadian/ECMWF solution was drier than the GFS.

Dry conditions should prevail Sunday into Monday morning, before
the next chance of rain (20-50%) arrives Monday afternoon. A more
potent system will move into the central plains on Monday, then
move into the Great Lakes region Monday night and Tuesday which
will bring a soaking rain to the area. Current rain chances are
50- 70%, but will likely go up in the coming days. High pressure
then build into the region next Wednesday. Temperatures will
remain above normal over the next week. with above normal
temperatures are likely for the month of November and the upcoming
winter (Dec-Feb period). Also, we turn the clocks back Sunday
morning as we switch to Central Standard Time. That means sunsets
before 5 pm!.

&&

.AVIATION...for 00Z TAF Issuance
Issued at 623 PM CDT Wed Oct 28 2026

A cold front is expected to move across the area tonight,
bringing a round of showers and scattered storms along with
gusty winds at the surface and aloft. Despite the sun
setting, surface winds will remain gusty to 20 to 25 mph
ahead of the cold front. Aloft, low wind shear will or
has developed early this evening and will continue until
the passage of the cold front. Best chances for thunderstorms
will be at KRHI/KAUW/KCWA TAF sites. Behind the front, there
will be a period of IFR/MVFR CIGS that should last for a few
hours. Fair weather cumulus should develop on Thursday and
could be broken for awhile across the north. Northwest winds
should gust to around 20 knots on Thursday.

&&

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

&&

$$

DISCUSSION.....Eckberg
AVIATION.......Eckberg

NWS GRB Office Area Forecast Discussion