965
FXUS63 KGRB 060250
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
950 PM CDT Sat Sep 5 2026

Updated aviation portion for 06Z TAF issuance

.KEY MESSAGES...

- Dry conditions for Labor Day weekend. Patchy fog possible late
  tonight and late Sunday night.

- Next chance of rain/storms late Monday night through Tuesday
  night.

- Above normal temperatures continue through at least the middle
  of next week.

&&

.DISCUSSION...
Issued at 311 PM CDT Sat Sep 5 2026

Labor Day Weekend...East/northeast low-level winds from high
pressure over Ontario and the Great Lakes has allowed for a shallow
layer of low-level moisture and clouds to prevail across much of the
region throughout the morning and into this afternoon. Anticipate
these clouds to gradually dissipate by this evening with the loss of
daytime heating. Skies will be mostly clear overnight, with the
potential for patchy fog to develop early Sunday morning. Expect dry
conditions and above normal temperatures (highs ranging from the
upper 70s to low 80s) to continue through the remainder of the Labor
Day weekend as the high pressure and upper-level ridging remain in
place. Patchy fog may develop late Sunday night into Monday morning
as well.

Rest of the forecast...The ridge and high pressure will gradually
depart late Monday as return flow sets up ahead of an approaching
system/weak cold front progged to move over the area late Monday
through early Wednesday morning. It is too early to determine the
severe potential, but this pattern would favor strong/severe storms
if the storms move through during peak heating on Tuesday. Will
continue to monitor over the coming days. Mainly dry conditions
return for the remainder of Wednesday through early Friday.

&&

.AVIATION...for 06Z TAF Issuance
Issued at 940 PM CDT Sat Sep 5 2026

Expect VFR flying conditions to prevail for the duration of the
TAF period, though some patchy fog may develop overnight as winds
decouple. Highest confidence in fog occurrence will be up near
RHI, though still some uncertainty on whether or not it will
manifest as low stratus similar to early this morning. Have
nevertheless included TEMPO group for BR in the RHI TAF.

After becoming light and variable overnight, winds gradually shift
to more east/southeast late Sunday morning, remaining under 10
knots.

&&

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

&&

$$

DISCUSSION.....Kruk
AVIATION.......Goodin

NWS GRB Office Area Forecast Discussion