350
FXUS63 KGRB 151833
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
133 PM CDT Wed Jul 15 2026

.KEY MESSAGES...

- Air quality and visibility will be impacted by wildfire smoke
  at least through late this week.

- Temperatures will remain above average through early next
  week, but not as hot as the past few days.

- Highest chances for organized showers/storms Friday into
  Friday night (50-80% over northern Wisconsin) and again on
  Monday and Monday night (40-60%).

&&

.DISCUSSION...
Issued at 133 PM CDT Wed Jul 15 2026

Wildfire smoke:

Smoke from wildfires to the north along the Minnesota/Ontario border
northward into Canada has been sinking southward behind a weak
boundary today resulting in visibility under 1 miles in spots.
In addition, an Air Quality Advisory remains in effect from the
Wisconsin DNR due to the impacts from smoke into at least
Thursday.

This smoke is likely to persist over the area through late week.
Although there will be a few periods ahead of frontal passages
on Friday and Monday where low-level winds shift more southerly,
prevailing northwest flow aloft over the next week will favor
continued transport of smoke southeast with any active fires to
the north.

Thunderstorm chances:

Overall, thunderstorm chances will trend upward over the next few
days. There is a very small chance (039-045-
     048>050.
MARINE...None.

&&

$$

DISCUSSION...JM
AVIATION...MPC

NWS GRB Office Area Forecast Discussion