FXUS63 KMKX 251158
AFDMKX
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
558 AM CST Wed Feb 25 2026
.KEY MESSAGES...
- Mild and breezy conditions are expected for Friday.
- A swath of light snow is possible across southern WI on
Saturday.
&&
.UPDATE...
Issued 550 AM CST Wed Feb 25 2026
No major changes to the forecast. Some patchy low clouds have
come a bit further south than expected but will not impact the
rest of the forecast today. Breezy winds will gradually
decrease into the afternoon today.
Kuroski
&&
.SHORT TERM...
Issued 1150 PM CST Tue Feb 24 2026
Today through Thursday:
Brisk northwest winds with gusts up to 25 mph and some low
clouds are expected roughly between 4 AM and 10 AM. A few
flurries are possible toward Fond du Lac and Sheboygan. Look for
clouds to break apart as drier air works in during the
afternoon, and also expect diminishing winds.
High pressure and clear skies will allow for light winds and
temperatures to quickly drop into the lower to mid teens Wed nt.
Light southerly winds will develop Thursday as a mid level
shortwave trough skirts across Lake Superior. A brief period of
low level warm air advection that is focused over northern WI
may be broad enough for light snow to expand into portions of
central WI. Thus we are carrying a slight chance of light snow
from the Dells to West Bend and north. Moisture looks shallow so
this would be a flurry situation as temperatures will be in the
upper 30s.
Cronce
&&
.LONG TERM...
Issued 1150 PM CST Tue Feb 24 2026
Thursday night through Monday:
A shortwave trough digging across Ontario on Friday will lead to
a strengthening surface low there. The associated cold front will
sweep across WI Fri evening. Ahead of that low, expect
temperatures to rise well above normal into the 50s. A few
flurries are possible along the cold front, and blustery northwest
winds are expected to quickly diminish by Saturday morning. Highs
Saturday will be back into the upper 20s and lower 30s.
The next feature to watch will be a swath of snow tracking across
SD, srn MN, and srn WI on Saturday. The forcing will be along
850-500mb frontogenesis with high RH, stemming from mid level
vorticity advection and upward motion along the left exit region
of the upper jet. The GFS shows a lighter and narrower axis of
precip than the ECMWF, which hints that this swath location might
be difficult to pinpoint until much closer to the time of
arrival.
For Sunday and Sunday night, we are watching the potential for
another round of light snow to spread into southern WI from Iowa.
The chance for this will depend on the degree of phasing of the
northern stream and southern stream shortwaves. There is still a
lot of uncertainty here and the overall pattern seems more
favorable for the snow to pass by to the south of WI rather than
right over us.
Cronce
&&
.AVIATION...
Issued 600 AM CST Wed Feb 25 2026
SCT/BKN MVFR CIGS making there way through the region this
morning. These lower CIGS will gradually push out over the next
few hours with these cloud rising in addition to pushing out. By
mid morning expect VFR conditions to return. Otherwise, breezy
northwest winds continue this morning but will decrease into the
afternoon as higher pressure pushes in.
Kuroski
&&
.MARINE...
Issued 1150 PM CST Tue Feb 24 2026
Northwest winds will develop overnight in the wake of a 29.5
inch low pressure trough and become gusty Wednesday morning.
Gusts up to 25 kt are expected for the nearshore areas until at
least mid morning and a Small Craft Advisory is in effect,
although this may need to get extended.
Lighter winds are expected Wednesday night into Thursday as
high pressure of 30.0 inches moves into the Upper Great Lakes.
South to southwest winds will then pick up later Thursday into
Friday as low pressure of 29.3 inches over Saskatchewan deepens
to 29.1 inches over Ontario. The associated cold front will
cross Lake Michigan Friday afternoon and evening. A few gales
will be possible across northern portions of the lake.
Cronce
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 10 AM
Wednesday.
&&
$$
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