Howards Grove, Wisconsin Weather Forecast Discussion

924
FXUS63 KMKX 070828
AFDMKX
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
328 AM CDT Sun Sep 7 2025
.KEY MESSAGES...
- Patchy dense fog in the Wisconsin River Valley may occur early
  this morning and again later tonight.
- Below normal temperatures continue today and tonight. High
  temperatures slowly warm back up, approaching seasonal normal
  values towards the middle of the week and perhaps above normal
  values by the end of the week.
- There are chances (20 to 30 percent) for showers Monday night
  through Tuesday night, mainly towards central Wisconsin, with
  lower chances (under 20 percent) towards southeastern
  Wisconsin.
&&
.SHORT TERM...
Issued 328 AM CDT Sun Sep 7 2025
Today through Monday:
The surface inversion with clear skies and cool temperatures may
allow for patchy dense fog in the Wisconsin River Valley into
early this morning, and again later tonight into early Monday
morning. May see light fog in low lying areas as well.
High pressure will shift southeast from the eastern Dakotas to
northern Illinois today, then to the east tonight into Monday.
This will bring a period of dry conditions to the area.
Scattered diurnal stratocumulus clouds are expected each
afternoon.
Cool/below normal temperatures will remain today and tonight,
with highs today in the middle 60s and lows tonight in the lower
40s inland. There may be some upper 30s in low lying areas as
well. Highs should rise into the lower 70s on Monday, as weak
warm air advection starts to develop over the region. There may
be a southeast lake breeze Monday afternoon near Lake Michigan.
Wood
&&
.LONG TERM...
Issued 328 AM CDT Sun Sep 7 2025
Monday night through Saturday:
A closed upper level low approaching the West Coast will assist
with building strong ridging across the Intermountain West and
its propagation eastward into the Upper Midwest going into
Tuesday. Expect weak lift across the region as troughing exits,
reflected in a diffuse surface low pressure system propagating
eastward through the Great Lakes Monday night into Tuesday
night.
This will allow for a few periods of precipitation chances
(20 to 30 percent chances) during this time frame, with the
better chances towards central Wisconsin and lower to the
southeast. Steady southwesterly winds are expected as well,
bringing in a return to warmer temperatures into the middle to
upper 70s Tuesday and Wednesday.
By Wednesday morning, expect remaining broad low pressure to
exit, as upper level ridging builds overhead. Current modeling
indicates Wisconsin will remain on the eastern edge of the
ridging through the end of the work week.
This may lead to additional weak shortwaves bringing additional
periods of precipitation, though for now will leave the
forecast dry until more confidence is reached. This will also
allow for temperatures to remain in the 70s to near 80 degrees
through the remainder of the week and into the weekend.
MH
&&
.AVIATION...
Issued 328 AM CDT Sun Sep 7 2025
Clear skies and cool temperatures may allow for patchy dense
fog in the Wisconsin River Valley into early this morning, and
again later tonight into early Monday morning. May see light
ground fog in low lying areas as well.
High pressure will shift southeast from the eastern Dakotas to
northern Illinois today, then to the east tonight into Monday.
This will bring a period of dry conditions to the area.
Scattered diurnal stratocumulus clouds with bases around 5000
feet AGL are expected each afternoon.
Modest northwest winds are expected today, with light and
variable winds tonight into early Monday morning. South to
southwest winds will develop on Monday. There may be a southeast
lake breeze Monday afternoon for terminals near Lake Michigan.
Wood
&&
.MARINE...
Issued 328 AM CDT Sun Sep 7 2025
High pressure around 30.3 inches will move from the eastern
Dakotas to northern Illinois today. The high will bring modest
northwest winds, which will weaken later today into tonight. In
addition, some showers and a few thunderstorms may occur over
the northern and eastern portions of the open waters today, with
a few waterspouts possible.
The high will gradually move to the east of the region tonight
into Monday. Southwest to south winds will increase over the
lake Monday into Tuesday, as a frontal boundary stalls from the
Upper Peninsula of Michigan southwest into the Central Plains. A
Small Craft Advisory may be needed north of Port Washington for
Monday evening into Tuesday, for the gusty winds and building
waves.
High pressure around 30.3 inches well northeast of the region
later in the week should bring northeast to east winds.
Wood
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.
&&
$$
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NWS MKX Office Area Forecast Discussion