699
FXUS63 KGRB 080311
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
1011 PM CDT Tue Oct 7 2025

Updated aviation portion for 06Z TAF issuance

.KEY MESSAGES...

- Freeze/frost headlines continue for areas away from Lake
  Michigan tonight as confidence increases for temperatures in the
  20s and 30s.

- Additional frost/freeze headlines look likely for Wednesday
  night, away from Lake Michigan.

- Cool temperatures through mid-week, then slowly warming to above
  normal again by the weekend.

- A dry period expected through Thursday, with small precipitation
  chances returning Thursday night into Friday, and a better
  chance anticipated Sunday through next Tuesday.

&&

.DISCUSSION...
Issued at 346 PM CDT Tue Oct 7 2025

A cold front will continue to move through the region this
afternoon and evening, accompanied by scattered to broken cloud
cover, gusty NW-N winds and the arrival of a cooler and drier
Canadian air mass.

Frost/Freeze Headlines & Temperatures...Made some changes to the
ongoing frost/freeze headlines, as latest guidance keeps more of
eastern WI above freezing overnight and a lingering pressure
gradient supports persistent light north winds in eastern WI
through the night. The main change was to downgrade the Freeze
Warning to a Frost Advisory in southern Marinette, southern
Oconto, Menominee and Shawano counties, with a time match with
the existing Frost Advisory in the Fox Valley areas. Additional
frost/freeze headlines look likely Wednesday night, as Min
temperatures have been lowered several degrees, especially away
from Lake Michigan. The cool temperatures begin to moderate late
in the work week, and rise to well above normal again over the
weekend.

Precipitation...Canadian high pressure brings dry conditions
through Thursday, but southerly return flow brings a small chance
of showers Thursday night into Friday. After another dry period
for the first part of the weekend, southwest flow and increased
moisture brings a chance of showers at times from Sunday
afternoon through next Tuesday.

&&

.AVIATION...for 06Z TAF Issuance
Issued at 1011 PM CDT Tue Oct 7 2025

VFR conditions are expected to prevail through the TAF period at all
terminals.

Any lingering mid-level clouds that remained during the evening have
cleared out and skies are now clear across the region. Winds have
decoupled and become calm across much of central and northern WI,
however, with a tighter gradient a few 10-15kt gusts may continue
for the next few hours across far eastern WI.

A high pressure system building in over the area Wednesday will keep
skies mostly clear and surface winds light and variable.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Freeze Warning until 9 AM CDT Wednesday for WIZ005-010>013-018-
019-021.

Frost Advisory from 3 AM to 9 AM CDT Wednesday for WIZ020-031-
037>039-045-048-049-073-074.

Freeze Warning from 3 AM to 9 AM CDT Wednesday for WIZ030-035-
036.
&&

$$

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