265
FXUS63 KGRB 080345
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
945 PM CST Sat Nov 7 2026

Forecast discussion for routine evening forecast issuance

.KEY MESSAGES...

- Dry with slightly above normal temperatures through the middle
  of next week. Warmest days will be Monday and Tuesday.

- Northwest winds may gust up to 35 mph Sunday afternoon,
  especially across northern Wisconsin.

- Turning cooler by late next week, with return of lake effect
  rain and snow showers.

&&

.DISCUSSION...
Issued at 945 PM CST Sat Nov 7 2026

A dry cold frontal passage will bring an increase in cloud cover
overnight. Behind the front winds will become northwesterly for
Sunday, and with a tightening pressure gradient and deeper mixing up
to around 850mb gusts will increase to around 25-35 mph Sunday
afternoon, strongest across northern WI, before subsiding Sunday
evening.

A brief period of high pressure Monday will keep the forecast dry
and temps a few degrees above normal before the next frontal passage
comes Tuesday into Wednesday. NBM probs continue to show 20 to 30%
PoPs, highest over the over the lake effect belts of north-central
WI as well as northern Door Co. Colder shot of air also arrives
during this time as 850 mb temps fall to -7 to -9C, hinting at the
potential for snow flurries mixing in with light rain at times.
Otherwise, respectable signal (50 to 60%) exists for below normal
precipitation and above normal temperatures into the middle of the
November.

&&

.AVIATION...for 00Z TAF Issuance
Issued at 456 PM CST Sat Nov 7 2026

A mix of mid and high clouds will stream over the forecast area
tonight as a dry cold front pushes through. These clouds should
remain above 10kft. By Sunday morning mostly clear skies should
return over the region. A deck of MVFR status clouds is expected to
develop over Lake Superior and sink south Sunday afternoon that may
impact RHI.

LLWS develops from northwest to southeast this evening as 850 mb
winds increase to near 40 knots. Otherwise, southwesterly winds
shift to northwesterly behind the cold front Sunday morning, with
gusts increasing to around 25 to 30 knots at all terminals Sunday
afternoon. By Sunday evening winds should be starting to diminish.

&&

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

&&

$$

DISCUSSION.....GK
AVIATION.......GK

NWS GRB Office Area Forecast Discussion