Bowstring, Minnesota Weather Forecast Discussion

776
FXUS63 KDLH 241821
AFDDLH
Area Forecast Discussion
National Weather Service Duluth MN
121 PM CDT Wed Sep 24 2025
.KEY MESSAGES...
- Another round of fog is possible tonight. Not expected to be
  quite as widespread as the previous mornings
- Mostly dry and warm through early to mid next week. A couple
  stray rain showers are possible along the border Saturday
  morning.
&&
.DISCUSSION...
Issued at 117 PM CDT Wed Sep 24 2025
Current Conditions/Today:
Quiet weather pattern for the Northland as an upper level low has
stalled out over the Great Lakes region with upper level ridging
arching across the northern Rockies into the Northland. At the
surface high pressure resides over the region allowing for gradual
warming with highs this afternoon expected to climb into the mid and
upper 70s away from Lake Superior. Overnight we may still see some
fog develop as radiational cooling looks to still have some low
level moisture to work with. However, the latest high res guidance
is not nearly as excited about the potential as we have seen the
past several days.
Stronger west to southwesterly winds tomorrow out ahead of a cold
front will see temperatures soar into the mid and upper 70s with a
few low 80s possible. Given the forecasted wind direction, Lake
Superior will not be providing any relief to our coastal zones.
Precipitation chances with the passing cold front late Thursday do
not look overly impressive. Model soundings show an abundance of dry
air in the mid and upper levels which will largely limit any rain
productions. For now, we have kept PoPs below 15% but may see some
sprinkles.
Another cold front moves across the region on Saturday. Similar
story as the previous with not a lot of moisture to work with.
Better moisture profiles look to be farther north but could see some
low chances (15%) across northern MN. Afterwards, we remain dry with
increasing temperatures through the work week. An omega blocking
pattern will keep things steady as the anticyclone will be held in
place over the Midwest through midweek before a trough manages to
nudge in from the west. Expect temperatures to climb into the mid an
upper 70s again. For context that is 10-15F above normal for this
time of year.
&&
.AVIATION /18Z TAFS THROUGH 18Z THURSDAY/...
Issued at 1222 PM CDT Wed Sep 24 2025
Fog has lifted with widespread VFR conditions through the afternoon
and early evening. There is potential for fog to develop again in
the overnight hours. However the signal is not nearly as
concrete and impressive as it has been for the past couple
nights. Any fog that does develop will quickly burn off in the
morning hours like we saw today.
&&
.MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/...
Issued at 117 PM CDT Wed Sep 24 2025
Fog continues to be the main concern for the nearshore waters.
Current webcams paired with satellite imagery shows An area of
dense fog lingering from Grand Marais and up through Grand Portage.
Model guidance would suggest this will linger through the day and
well into tomorrow with the chance for expansion as we head into the
evening hours. The better chances (60%) for the fog expansion will
be along the North Shore, but can`t fully rule out the chances (40%)
for the South Shore. Winds continue to be less than 5 kts with
minimal wave action until Thursday afternoon when winds of 5-10 kts
start to stream in from the west.
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...Dense Fog Advisory until 11 AM CDT Thursday for LSZ140.
&&
$$
DISCUSSION...Britt
AVIATION...Britt
MARINE...Britt

NWS DLH Office Area Forecast Discussion