Bayside, Wisconsin Weather Forecast Discussion

612
FXUS63 KMKX 231545
AFDMKX
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
1045 AM CDT Tue Sep 23 2025
.KEY MESSAGES...
- Areas of fog will slowly dissipate through the rest of the
  morning.
- A few showers and storms will be possible towards the WI/IL
  state line today.
- A small chance for showers mid-week, with conditions drying
  out by the end of the week.
&&
.UPDATE...
Issued 1026 AM CDT Tue Sep 23 2025
Low stratus lingers this morning over most of southern WI with
some pockets of mist and fog still continuing to mix out. With
time, the stratus deck should break up and more peeks of sun
should appear during the afternoon. Highs should generally be in
the low 70s, though places that have encountered sunshine
already this morning (central and southwest WI) may end up with
highs in the mid 70s.
CMiller
&&
.SHORT TERM...
Issued 338 AM CDT Tue Sep 23 2025
Today and Tonight:
There is a chance for some fog to develop early this morning as
high level clouds begin to clear out of the area. An isolated
storm or two will also be possible early this morning as some
moisture an instability linger behind a departed front.
Otherwise, any additional shower/storm development today is
expected to be mainly south of the WI/IL border, with the
surface boundary south of the state line. Some of this activity
may sneak into far southern Wisconsin today, depending on where
exactly the front settles by the afternoon. Thus kept 15-30%
chances near the state line. Temps will be a little cooler today
behind the front, with highs in the lows to mid 70s most
places.
Latest models suggest an increase in low cloud coverage
tonight, as a cooler airmass settles in from the north. Dry
weather is likely overnight, with lows in the mid to upper 50s.
DDV
&&
.LONG TERM...
Issued 338 AM CDT Tue Sep 23 2025
Wednesday through Monday:
Weak surface low pressure over western portions of the Ohio River
valley on Wednesday will result in a modest northeast breeze
across the region, holding daytime high temperatures to around 70
degrees. A few rainshowers may occur Wednesday and Thursday,
primarily south of the US-151 highway corridor, as the
aforementioned low pressure tracks northeastward and deepens. This
rain should be brief and light if applicable. Northeast winds
decelerate and back northwest throughout Thursday as low pressure
ejects into Canada, allowing cloud cover and precip chances to
diminish.
Dry weather is looking likely late Thursday through the rest of
the forecast period. Two low pressure systems traverse southern
Canada in this window, but model guidance currently holds all
associated precip well north of our region. High temperatures
climb back towards the upper 70s late this week into this weekend
as a longwave ridge in the jet stream builds over the northern
Rockies and upper midwest.
Sheppard
&&
.AVIATION...
Issued 1032 AM CDT Tue Sep 23 2025
North to northeast winds will remain light to moderate today.
While widespread rain is not expected, a sprinkle or two can`t
be ruled out from low stratus late this morning into the
afternoon. Vis continues to improve but areas of 3 to 6SM do
exist in pockets over southern WI. Vis is expected to improve
everywhere this afternoon.
Ceiling heights are variable at this time, ranging from OVC003
to OVC015. Through this afternoon, ceiling heights will rise,
and clouds are expected to break in scattered spots and the
boundary layer mixes.
CMiller
&&
.MARINE...
Issued 338 AM CDT Tue Sep 23 2025
Areas of fog will persist through early this morning across
roughly the northern half of the lake. Will continue to monitor
trends to see of the Dense Fog Advisory will need to be extended
beyond 7 AM CDT.
Northerly winds will pick up this afternoon through Wednesday as
high pressure around 30.2 inches forms near the Hudson Bay and low
pressure around 29.8 inches develops in the middle Mississippi
Valley. The low will slowly pass near or just southeast of
southern Lake Michigan later Wednesday through Thursday. Wind
gusts are expected to remain below gale thresholds during the
low`s approach and passage.
DDV
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.
&&
$$
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NWS MKX Office Area Forecast Discussion