Sand Lake, Minnesota Weather Forecast Discussion

575
FXUS63 KDLH 230554
AFDDLH
Area Forecast Discussion
National Weather Service Duluth MN
1254 AM CDT Tue Sep 23 2025
.KEY MESSAGES...
- Additional rounds of overnight fog will occur tonight into
  Tuesday morning, and possibly again Tuesday night into
  Wednesday morning. Dense Fog Advisories are in effect.
- Largely dry with above normal temperatures Tuesday and
  beyond.
&&
.DISCUSSION...
Issued at 214 PM CDT Mon Sep 22 2025
Very weak troughing in northwest Ontario drops southward this
afternoon into the Borderlands. This is helping promote some
weak instability showers. Radar shows the expected nature of the
weakly supported showers collapsing soon after formation, which
is likely to persist into the evening hours today in the
Arrowhead. Any rainfall would be less than 1/10 of an inch in
the Arrowhead to Iron Range area over the next few hours under
these widely scattered rain showers.
Another round of dense fog moves onshore again tonight from 7-10
PM this evening. The first round of Dense Fog Advisories for
those areas along or near Lake Superior go into effect at 8 PM
with all other inland zones, except Price County, at Midnight
tonight. Expect another night and Tuesday morning commute with
visibility less than 1/4 mile. All Advisories remain in effect
until 11 AM Tuesday, but some inland zones are likely able to be
dropped early tomorrow morning as visibility improves 9-10 AM.
More limited dense fog coverage is expected to return again
Tuesday night.
The remainder of the forecast features a very quiet early fall
pattern with temperatures in the upper-60s to low-70s and less
than 10 percent chances of additional rainfall beyond this
evening.
&&
.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1254 AM CDT Tue Sep 23 2025
Fog and stratus has developed over the terminals, with
conditions ranging from IFR to VLIFR are expected to linger
overnight and through approximately 14z, followed by gradually
improving conditions through the rest of the morning and early
afternoon. With a lot of lingering moisture, conditions will
deteriorate again this evening, with IFR conditions developing
once again after 03z, and another night of LIFR/VLIFR conditions
expected. Winds for this TAF period to remain less than 5kts.
&&
.MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/...
Issued at 214 PM CDT Mon Sep 22 2025
Dense marine fog continues through at least late morning
tomorrow, with Dense Marine Fog Advisories in effect for all
nearshore waters of western Lake Superior. Clearing and
improving visibility may occur Tuesday afternoon ahead of
another possible round of dense fog Tuesday night into
Wednesday. Winds remain light and variable under 10 knots.
For the open water discussion, refer to the NWS Marquette Area
Forecast Discussion at weather.gov/mqt.
&&
.DLH WATCHES/WARNINGS/ADVISORIES...
MN...Dense Fog Advisory until 11 AM CDT this morning for MNZ010>012-
     018>021-025-026-033>038.
WI...Dense Fog Advisory until 11 AM CDT this morning for WIZ001>004-
     006>008.
MARINE...Dense Fog Advisory until 10 AM CDT this morning for LSZ121-
     140>148-150.
&&
$$
DISCUSSION...NLy
AVIATION...LE
MARINE...NLy

NWS DLH Office Area Forecast Discussion