142
FXUS63 KGRB 261831
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
131 PM CDT Mon Oct 26 2026

Forecast discussion for routine afternoon forecast issuance

.KEY MESSAGES...

- Scattered showers for the remainder of the afternoon into
  tonight. Rain chance 40-80%, highest across central and north-
  central WI. Rain lingers across the north (20-50% chance) on
  Tuesday morning.

- Another round of rain and a few storms Wednesday night. Rain
  chance (50-90%), highest across central and north-central WI.
  Severe weather is not expected.

- Temperatures will return a few degrees above normal Tuesday,
  then well above normal temperatures into the weekend.

- Hazardous conditions begin on Lake Michigan south of Two Rivers
  this afternoon, and then overspread the rest of the nearshore
  waters and possibly the bay of Green Bay Tuesday afternoon into
  Wednesday.

&&

.DISCUSSION...
Issued at 130 PM CDT Mon Oct 26 2026

After a week of above normal temperatures, temperatures this
afternoon were close to normal for late October with readings in
the middle 40s to middle 50s. Regional radars were indicating
scattered showers across north-central and central WI westward
into southwest and west-central WI.

Low pressure across the central plains will move northeast into
Minnesota late tonight, then to western Lake Superior Tuesday
afternoon. Weak 850mb and a weak impulse were producing the
showers across Wisconsin early this afternoon. The scattered
showers will continue for the rest of the afternoon into tonight,
with rain chances at 40-80% with the highest across central and
north-central WI. The showers should come to an end Tuesday across
the north as the system pulls away from the area.

Southerly winds will bring in warmer temps on Tuesday, with some
of the warmest temperatures this week on Wednesday where highs
should reach the upper 60s to middle 70s. A cold front will bring
another round of showers and a few thunderstorms (rain chance
50-80%) Wednesday night. Slightly cooler, but still well above
normal temperatures are expected on Thursday. A few showers may
linger into the morning hours on Thursday, otherwise high pressure
will build into the region. Dry conditions will prevail Thursday
night into Friday morning before the next chance of rain arrives
Friday afternoon. It appears the upcoming weekend will be
unsettled with chances of rain throughout the weekend. It will be
mild with readings well into the 50s to lower to middle 60s. It
should be noted the normal high for November 1st is around 50
degrees across the area, and will also be the day we set the
clocks back one hour as we switch to Central Standard Time.

&&

.AVIATION...for 18Z TAF Issuance
Issued at 1148 AM CDT Mon Oct 26 2026

Despite scattered showers across the north this afternoon
into this evening, VFR conditions will prevail. The scattered
showers will continue overnight across northern Wisconsin, however
MVFR or IFR CIGS are expected to develop across north-central
and far northeast Wisconsin after 04-05z. The low CIGS will linger
into Tuesday morning before lifting into the VFR category.
Northerly winds today will veer to the east tonight, then
southeast on Tuesday.

&&

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

&&

$$

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

NWS GRB Office Area Forecast Discussion