Forecast Discussion for GRB NWS Office
572
FXUS63 KGRB 062332
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
532 PM CST Fri Nov 6 2026

Updated aviation portion for 00Z TAF issuance

.KEY MESSAGES...

- Tranquil weather is expected through the middle of next week.
  First small chance of rain is on Wednesday.

- After a chilly start Saturday, near normal temperatures are
  expected Saturday afternoon. Above normal temperatures are then
  expected through the middle of next week.

&&

.DISCUSSION...
Issued at 1221 PM CST Fri Nov 6 2026

Dry air has impeded cloud cover development across much of the
area early this afternoon, the only exception was across the far
north and across Door County. Temperatures were in the upper 30s
to middle 40s. For this afternoon, some fair weather cumulus
is still possible as temperatures rise a few more degrees. For
tonight, one of the coldest nights so far this fall is expected
with lows in the low to middle 20s while readings across the
Door peninsula will only fall into the lower to middle 30s.
Near normal temperatures are expected on Saturday. The main
concern for Saturday will be the potential for a low stratus deck
to develop with return flow. Have trended skies towards mostly
cloudy, however in the case for tomorrow it will be cloudy if it
does develop which could result in high temperatures being a few
degrees cooler.

Otherwise, tranquil conditions to continue through the middle
of next week. Current forecast is dry, except for a small chance
of showers on Wednesday. Uncertainty exists on the dry forecast
for Thursday and Friday as models suggest some potential for a
round of rain at some point during this period. After near normal
temperatures Saturday, above normal temperatures to continue
through the middle of next week. The latest guidance from the GFS
would suggest a cool down for later next week.

&&

.AVIATION...for 00Z TAF Issuance
Issued at 531 PM CST Fri Nov 6 2026

Skies are mostly clear this evening, except for lingering lake
stratocu far north-central WI and also across Door County. Warm
air advection altocu over MN will spread into central WI late
tonight into Saturday morning. May also be patches of IFR-MVFR
stratus during this time, though there remains lower confidence
is this developing. Rest of Saturday will feature mix of mid and
high clouds, along with MVFR to low-end scattered cu developing in
the afternoon.

Winds will be less than 10 kts, shifting from NW tonight to WSW on
Saturday.

&&

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

&&

$$

DISCUSSION.....Eckberg
AVIATION.......JLA

NWS GRB Office Area Forecast Discussion