Maple, Wisconsin Weather Forecast Discussion

932
FXUS63 KDLH 061732
AFDDLH
Area Forecast Discussion
National Weather Service Duluth MN
1232 PM CDT Mon Oct 6 2025
.KEY MESSAGES...
- Seasonable fall weather for a few days. Patchy frost is
  possible tonight, mainly for the usual inland cold spots.
- A widespread freeze is likely Tuesday night into Wednesday
  morning.
- Gradually warming temperatures later this week into the
  weekend. Some rain is possible Thursday and Sunday.
&&
.DISCUSSION...
Issued at 220 AM CDT Mon Oct 6 2025
Cold air advection is in full swing following cold frontal passage
earlier in the evening. Other than a stray light shower or two this
morning along the Canadian border, we can expect low clouds to
gradually erode today as drier air moves in with high pressure. Some
mid to high level clouds may pass through with some weak lift aloft.
Otherwise, the main story will be the cooler temperatures today with
highs only in the 50s to 60s. West winds are expected to gust to 15-
20 mph...a little breezy, but light compared to Sunday.
Frost and freezing temperatures will be possible the next
couple nights. Tonight, we will still have a bit of a pressure
gradient and thus some light winds. A trough aloft may also
result in some clouds and perhaps even a few light rain/snow
showers up around the International Border. With all that, frost
potential is looking like it will be patchy. Some of the usual
cold spots could see a bit of frost. The upper level trough will
move east on Tuesday with surface high pressure building in
overnight. A reinforcing shot of cooler air from the northwest
is expected Tuesday, and it will settle in with winds becoming
light to calm Tuesday night. Tuesday night into Wednesday
morning will be the main show for frost, and at this point we`re
looking at a >50% chance at temperatures falling below freezing
pretty much everywhere except within a few miles of Lake
Superior. This could very well be a season-ending freeze for
many to most places.
Immediately following the cold temperatures Wednesday morning, upper
level ridging will move in aloft with southerly flow and warm air
advection developing on the west side of departing surface high
pressure. A nice recovery of high temperatures into the 60s are
expected away from Lake Superior, where onshore flow will keep
temperatures cooler.
The warm air advection regime continues into Thursday, and a weak
shortwave aloft and a weak cool front may be enough to kick off some
light rain showers (~25% chance). Rainfall amounts should be very
light (up to a tenth of an inch or two on the high end). After a
quick surface high passes through, warm air advection continues into
Friday and Saturday. Dry weather is expected and temperatures are
expected to moderate to the upper 60s to low 70s for highs going
into the weekend.
It`s looking likely that a broad upper level trough will develop
over the west this weekend with a cold front potentially making its
way through our region around Sunday. We could see some rain with
this (~50% chance) followed by some cooler weather into next
week.
&&
.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1230 PM CDT Mon Oct 6 2025
Diurnal MVFR cumulus is ongoing across the region and bringing
scattered to broken ceilings at terminals. Expect these to
decrease in coverage early this evening as northwest winds
continue to back westerly. Outside of a few rain showers in the
Borderlands late tonight, a secondary dry cold frontal passage
will drop southeastward 09-15Z Tuesday and bring another period
of northwest winds tomorrow. Gusts to 20 knots are likely for
North Shore terminals Tuesday daytime.
&&
.MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/...
Issued at 220 AM CDT Mon Oct 6 2025
Winds are expected to continue to decrease through the early
morning hours. Therefore, headlines will be allowed to expire.
It is possible that there could be isolated gusts to 25 kt
through about 6 AM, but in general, winds are already at or
below 22 kt for gusts and are expected to continue decreasing.
Today, winds become southwesterly with gusts generally less than
20 kt. There`s a small (20%) chance for some gusts up to 25 kt
around Grand Portage this afternoon, which could be hazardous
for small craft.
Wind speeds increase tonight and gusts to 25 kt are expected to
develop mainly along the North Shore and into the Outer Apostle
Islands into Tuesday with winds becoming northwesterly. Small
Craft Advisories may be needed. Winds are expected to decrease
again Tuesday afternoon.
For the open water discussion, refer to the NWS Marquette Area
Forecast Discussion at weather.gov/mqt.
&&
.DLH WATCHES/WARNINGS/ADVISORIES...
MN...None.
WI...None.
MARINE...None.
&&
$$
DISCUSSION...JDS
AVIATION...NLy
MARINE...JDS

NWS DLH Office Area Forecast Discussion