489
FXUS63 KDLH 271657
AFDDLH

Area Forecast Discussion
National Weather Service Duluth MN
1157 AM CDT Mon Jul 27 2026

.KEY MESSAGES...

- Dangerous swimming conditions exist along Duluth and Superior
  beaches through this afternoon due to strong rip currents and
  waves.

- Dense fog over Lake Superior will create hazardous navigation
  conditions into this afternoon and probably overnight too.

- Hot and muggy inland today with heat indices approaching 90,
  followed by a drier but still warm stretch for Tuesday and
  Wednesday.

&&

.DISCUSSION...
Issued at 1144 AM CDT Mon Jul 27 2026

For the rest of today, a hot and muggy afternoon across the
Northland with temperatures warming well into the 80s and even
low 90s far inland. Closer to Lake Superior, brisk northeast
winds will keep temperatures cooler but will also drive high
waves and dangerous rip currents along the Twin Ports beaches -
a Beach Hazards Statement is in effect today. Areas of dense fog
and will also linger into the afternoon, especially near the
lake.

Heading into tonight and Tuesday, high pressure begins to build
into our area, ushering in a drier and a slightly more
comfortable airmass. While daytime highs on Tuesday will remain
unseasonably warm in the 80s to lower 90s, the oppressive
humidity will take a subtle break. Expect mostly sunny skies
with patchy smoke continuing to drift overhead. A stray
afternoon shower or thunderstorm cannot be completely ruled out,
but the vast majority of the region will stay dry and pleasant.
Marine fog may drift on and off shore but that will also help
moderate temperatures.

The quiet weather holds firm through Wednesday as the upper
level ridge dominates the central United States. Highs will
again reach the mid 80s to lower 90s across northeast Minnesota
and northwest Wisconsin. Overnight lows during this stretch will
provide some relief, dropping comfortably into the upper 50s
and 60s.

Our next significant weather maker arrives on Thursday and
Friday as a shortwave trough and associated cold front
approach from the west. This system will bring our next
widespread chance for showers and thunderstorms, and possibly
some severe threat too though shear looks a little weak at the
moment and could be the limiting factor. As southerly flow
increases ahead of the front, humidity levels will creep back
up, maintaining high temperatures in the upper 80s despite the
increased cloud cover and precipitation chances.

Looking ahead to the upcoming weekend, the Northland will remain
in a somewhat stagnant weather pattern. Afternoon highs will
generally stay in the 80s. With the main storm track positioned
to our north, we can expect occasional, less organized waves of
showers and storms to dive across the area.

Looking toward the first week of August, the Climate Prediction
Center indicates that the Upper Midwest and Great Lakes region
will likely experience above normal temperatures. Precipitation
signals are weaker, but slightly favor near to below normal
precipitation across the area as upper level ridging influences
the central CONUS.

&&

.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1155 AM CDT Mon Jul 27 2026

Flight conditions across the region will gradually improve from
IFR and MVFR to VFR as a system exits to the southeast. Low
clouds and patchy dense fog will scatter out at most terminals
by mid afternoon. Expect gusty winds from the east-northeast
at KDLH, with gusts up to 25 knots possible into the afternoon
before subsiding this evening. Patchy fog may return tonight,
but confidence remains low put some in where LAMP guidance has
been trending upwards.

&&

.MARINE /FOR NEARSHORE WATERS OF WESTERN LAKE SUPERIOR/...
Issued at 1138 AM CDT Mon Jul 27 2026

Hazardous conditions will persist across western Lake Superior
into this afternoon and probably overnight. Dense fog will
restrict visibility to under one nautical mile for nearshore
waters, while northeast winds gusting to 25 knots build waves of
3 to 5 feet. Small Craft Advisories and a Dense Fog Advisory
remain in effect today. Winds and waves will subside this
evening as high pressure builds in, allowing winds to become
light and variable at 10 knots or less for Tuesday and
Wednesday. Dense fog may linger overnight though.

For the open water discussion, refer to the NWS Marquette Area
Forecast Discussion at weather.gov/mqt.

&&

.FIRE WEATHER...
Issued at 1138 AM CDT Mon Jul 27 2026

Hot temperatures and lack of precip are the fire weather
concerns for most of this week. Relative humidity values will
mostly bottom out above 40 percent this week with winds gusting
to 10 to 15 mph from various directions through the week,
mitigating extreme fire weather conditions.

See the Fire Weather Forecast product for a more thorough
breakdown of fire weather conditions.

&&

.DLH WATCHES/WARNINGS/ADVISORIES...
MN...Beach Hazards Statement until 5 PM CDT this afternoon for
     MNZ037.
WI...Beach Hazards Statement until 5 PM CDT this afternoon for
     WIZ001.
MARINE...Small Craft Advisory until 5 PM CDT this afternoon for LSZ121-
     143>148-150.
     Dense Fog Advisory until 5 PM CDT this afternoon for
     LSZ140>145.

&&

$$

DISCUSSION...Wolfe
AVIATION...Wolfe
MARINE...Wolfe
FIRE WEATHER...Wolfe