Haumerson Pond, Wisconsin Weather Forecast Discussion

286
FXUS63 KMKX 071943
AFDMKX
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
243 PM CDT Sun Sep 7 2025
.KEY MESSAGES...
- Another cool night expected then a warming trend for the
  remainder of the week. High temperatures will warm above
  normal for the 2nd half of the week.
- There are 20 to 30 percent chances for showers and storms
  Tuesday night north and west of the MKE Metro Area.
&&
.SHORT TERM...
Issued 243 PM CDT Sun Sep 7 2025
Tonight through Tuesday:
Scattered to broken cloud cover will dissipate toward evening
while high pressure over IL shifts into the nrn Ohio River
Valley through the night. Its surface ridge axis extending into
srn WI will slowly move across with another cool night
expected. Some valley fog over south central WI is forecast but
even more sparse over se WI.
The high pressure area will then shift to the Lower Great
Lakes and Mid Atlantic States by Mon afternoon with sly winds
and low to mid level warm advection developing for srn WI into
Tue. This will occur as the jet stream becomes quasi-zonal and
a trough of low pressure moves into the nrn Great Plains. Some
cloud cover may develop with the warm advection mainly north and
west of Madison, but overall, sunshine and temps returning into
the 70s is forecast.
Gehring
&&
.LONG TERM...
Issued 243 PM CDT Sun Sep 7 2025
Tuesday night through Sunday:
A weak shortwave trough will slowly pass Tue nt-Wed while the
approaching sfc trough and cold front will mostly diminish. Thus
only a weak cold frontal passage is expected late Wed afternoon
and evening and will likely be dry. Beforehand, 20-30% chances
for showers and storms are forecast for south central and
portions of east central WI for Tue nt.
A large high pressure area will then move from Ontario into srn
Quebec and New England for Thu-Fri, while a narrow but high
amplitude upper ridge builds into the Upper MS River Valley.
Light enely winds and above normal temps are forecast for srn
WI. The upper ridge will then shift into the wrn Great Lakes for
the weekend. Sly winds and warm and humid conditions will
returns with at least slight chances for showers and storms.
Gehring
&&
.AVIATION...
Issued 243 PM CDT Sun Sep 7 2025
VFR conditions will prevail this afternoon through Monday with
the exception of fog in the WI River Valley along the Sauk and
Iowa County border, and other low lying areas of south central
WI from 09-14Z Mon. Sct-bkn050-060 cumulus and stratocumulus for
this afternoon over srn WI and again on Tue mainly north and
west of Madison.
Gehring
&&
.MARINE...
Issued 243 PM CDT Sun Sep 7 2025
High pressure around 30.3 inches will move from Illinois this
afternoon into the northern Ohio Valley through late tonight. The
high pressure area will then move to the Mid Atlantic States and
New England for Monday and Tuesday. As the high passes by, light
northwest winds will shift to westerly by late this evening, then
becoming breezy southerly winds for Monday night and Tuesday. Much
lighter winds are then expected Tuesday night and Wednesday followed
by a weak cold frontal passage from the north for Wednesday night.
Light northeast winds will prevail after the frontal passage
through Thursday becoming east to southeast for Friday. A Small
Craft Advisory may be needed north of Port Washington for Monday
night and Tuesday morning.
Gehring
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.
&&
$$
Visit us at weather.gov/milwaukee
Follow us on Facebook, X, and YouTube at:
www.facebook.com/NWSMilwaukee
www.x.com/NWSMilwaukee
www.youtube.com/NWSMilwaukee

NWS MKX Office Area Forecast Discussion