870
FXUS63 KGRB 072046
AFDGRB

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

Forecast discussion for routine afternoon forecast 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 18Z TAF Issuance
Issued at 1222 PM CDT Tue Oct 7 2025

VFR flight conditions are expected through the TAF period.

A weak cold front will bring scattered cumulus and a narrow band
of mid-level clouds as it moves through this afternoon and early
evening. Otherwise, only expecting gusty winds shifting from W to
NW/N in the wake of the front, then becoming light and variable
as high pressure arrives overnight. There is a small chance of
patchy ground fog late tonight, but confidence is too low to
include at any of the TAF sites.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Freeze Warning from 10 PM this evening to 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.......Kieckbusch