Forecast Discussion for GRB NWS Office
880
FXUS63 KGRB 280500
AFDGRB
Area Forecast Discussion
National Weather Service Green Bay WI
1100 PM CST Fri Feb 27 2026
Updated aviation portion for 06Z TAF issuance
.UPDATE...
Issued at 601 PM CST Fri Feb 27 2026
Northwest winds become strong and gusty in wake of cold front
crossing northwest WI late this afternoon. Ashland, WI gusted
over 50 mph at times for a couple hours 3-5p, right in line with
stronger pressure rises. Based on track of the pressure rises and
forecast soundings showing 40+ kts of wind to be tapped into,
issued Wind Advisory over north-central WI through 9 pm when
cooling of lowest few thousand feet AGL should stabilize
conditions. Strongest winds/gusts will be closer to Upper Michigan
border. Potential for a few power outages as the stronger winds
impact the northwoods this evening.
Otherwise, as west winds shift northwest through late evening,
expect gusts even away from the advisory area to reach 30-35 mph
at times. Winds will diminish late evening into the overnight with
nighttime cooling.
&&
.KEY MESSAGES...
- After highs in the middle 40s to middle 50s this afternoon,
highs on Saturday will only be in the middle teens to middle
20s.
- A band of snow (50-80% chance) is expected to move across the
southern half of the area on Saturday. Snowfall totals between 1
and 3 inches is expected, mainly south of Highway 29.
- Within this band of snow, a narrow 2-3 county wide band of
heavier snow with 3"+ is expected to set up. Current indications
that the band of heavier snow is forecast to set up south of the
area, however could still shift northward over the next 24
hours.
- A warming trend is expected next week as a more spring like
pattern sets up over Wisconsin, resulting in periodic chances
for rain or snow.
&&
.DISCUSSION...
Issued at 147 PM CST Fri Feb 27 2026
A mild afternoon across the region with temperatures in the middle
40s to middle 50s. For tonight, gusty winds can be expected as a
strong cold front moves across the region. Temperatures will drop
into the single digits north to the the teens across east-central
WI. High temperatures on Saturday will be around 30 degrees colder
with readings in the middle teens to middle 20s. The other story
for Saturday will be a clipper system that will pass south of the
area. There is a 50-80% chance of snow, mainly south of Highway
29 where 1 to 3 inches of snow is anticipated. Within this band
of snow across, a narrow 2-3 county wide band of heavier snow
with 3"+ is expected to set up. Current indications that the band
of heavier snow is forecast to set up south of the area, in the
axis where the best fgen forcing set ups. Any lingering snow
should end across east-central WI Saturday evening. Despite
almost being March 1, the snow will be powdery type snow although
winds should not be a factor for blowing snow.
Tranquil weather is expected through Monday, although it will
remain cold on Sunday with highs in the 20s before warming into
the 30s on Monday. Beyond Monday, more typical spring like
temperatures in the 30s and 40s is expected through next Friday.
Along with the warmth will come chances for rain and snow,
especially later next week. The beneficial precipitation should
hopefully help alleviate the long-term precipitation deficits of
the current drought. Will also need for the ground to thaw to
allow the moisture to replenish soil moisture and ground water
tables.
&&
.AVIATION...for 06Z TAF Issuance
Issued at 1059 PM CST Fri Feb 27 2026
Cold front has made it across eastern WI. Northwest winds will
gust to 30 kts early, then diminish the rest of the night. LLWS
early on as well, before ending. Winds the rest of the TAF period
will be lighter, shifting from northwest to northeast.
Otherwise, VFR into Saturday morning. System brings snow to southern
half of WI Saturday afternoon into Saturday evening. TAFs generally
MVFR to lower VFR. Latest trend is that bulk of steadier snow will
miss all the TAF sites to the south.
Snow ends by late Saturday evening, with MVFR cigs gradually giving
way to VFR cigs later Saturday night.
&&
.GRB WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
UPDATE.........JLA
DISCUSSION.....Eckberg
AVIATION.......JLA
NWS GRB Office Area Forecast Discussion