370
FXUS63 KGRB 141804
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
104 PM CDT Tue Jul 14 2026

.KEY MESSAGES...

- Temperatures will gradually trend downward through late week,
  although heat and humidity will continue across parts of
  central into east-central Wisconsin on Wednesday.

- There is a small chance (less than 20%) for a thunderstorm
  this evening or again Wednesday afternoon, with additional
  intermittent low to medium (20-60%) shower/storm chances later
  Thursday into early next week. Confidence in severe weather
  is low at this time.

- Smoke from wildfires across northern Minnesota and southwest
  Ontario may impact the area beginning tonight or Wednesday.

&&

.DISCUSSION...
Issued at 104 PM CDT Tue Jul 14 2026

Strong ridging centered across the Upper Midwest will gradually
weaken Wednesday into Thursday with a transition to more pronounced
northwesterly flow this weekend into next week. Temperatures will
slowly fall back over the coming days, although will remain
above normal into the weekend.

A weak front will slide south on Wednesday with drier air across
northern Wisconsin providing some relief from the humidity. With
parts of central into east-central Wisconsin likely to remain quite
humid with highs in the low to mid 90s, and the cumulative impacts
of multiple days of hot weather, will extend the heat advisory
through Wednesday evening for some counties south of Highway 29.
However, temperatures may be impacted slightly by wildfire
smoke, depending on the degree of smoke.


Thunderstorm chances:

Large scale ascent for storms will be weak through Wednesday.
However, there is a low chance (039-045-
     048>050.
MARINE...None.

&&

$$

DISCUSSION...JM
AVIATION...JM

NWS GRB Office Area Forecast Discussion