NWS-Green Bay Forecast Discussion

 

						FXUS63 KGRB 280004 AAA
AFDGRB

Area Forecast Discussion...UPDATED
National Weather Service Green Bay WI
604 PM CST Fri Feb 27 2026

New Information added to update section

.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 00Z TAF Issuance
Issued at 554 PM CST Fri Feb 27 2026

Winds are main issue tonight. Cold front moving this evening
shifts SW winds to NW. Gusts over 30 kts mid to late evening.
Strongest winds central to north-central WI. Winds diminish after
midnight. LLWS present as well until 06z.

Otherwise, VFR tonight with increasing mid clouds. System brings
snow to southern half of WI on Saturday, starting 16-18z. TAFs
generally MVFR (except remaining VFR farther north at RHI), but
did include TEMPO for IFR at ATW in the afternoon. Snow ends by
early Saturday evening, with MVFR cigs remaining.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 9 PM CST this evening for WIZ005-010>012.
&&

$$

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