Spot Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
439
FNUS73 KDLH 210958
FWSDLH
Spot Forecast for Superior SAR...SLCRS
National Weather Service Duluth MN
458 AM CDT Thu Aug 21 2025
Forecast is based on forecast start time of 0600 CDT on August 21.
If there are questions or concerns with this forecast, or if
conditions become unrepresentative, contact the National
Weather Service in Duluth at 218-729-0653.
.DISCUSSION...
After morning fog, a pretty nice day until non-severe thunderstorms
move in late this evening. Better chances for severe thunderstorms
on Friday afternoon and evening. Still looking for a cool down
this weekend after a cold front passes this will cause winds to
switch to the northwest and become gusty to 25 mph on Saturday.
.TODAY...
Sky/weather.........Mostly sunny (40-50 percent). Patchy fog early
in the morning.
Chance of pcpn......0 percent.
Chance of thunder...4 percent.
Max temperature.....Around 78.
Min humidity........64 percent.
Surface winds (mph).Light winds becoming southeast 6 to 8 mph late
in the morning, then shifting to the around 8
mph late in the afternoon.
Ceiling (kft).......6.8 decreasing to 3.4 early in the morning,
then increasing to 7.6 late in the morning
increasing to 14 late in the morning increasing
to 21.
Visibility (sm).....1.25 increasing to 9.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......PC PC PC PC PC PC PC PC PC PC PC PC
Weather cov.....PTY
Weather type....FOG
Tstm cov........
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............59 58 60 62 67 69 70 73 74 76 77 77
RH..............100 100 100 97 87 84 81 73 69 66 64 67
Surface wnd dir.E NE NE E E E E E SE SE SE SE
Surface wnd spd.2 3 3 3 3 4 6 7 7 8 8 8
Surface wnd gst.5 5 6 6 7 8 10 12 12 13 13 13
Ceiling (kft)...6.8 3.4 3.7 7.6 14 15 21 22 23 23 24 23
Visibility (sm).1.2 1.2 6 9 10 10 10 10 10 10 10 10
.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent) then becoming
mostly cloudy (55-65 percent). Slight chance of
thunderstorms in the evening. Chance of showers
through the night. Chance of thunderstorms
overnight.
Chance of pcpn......40 percent.
Chance of thunder...31 percent.
Min temperature.....Around 65.
Max humidity........97 percent.
Surface winds (mph).Southwest winds 6 to 7 mph.
Ceiling (kft).......20 increasing to 23 early in the evening, then
decreasing to 18 late in the evening decreasing
to 15 late in the evening decreasing to 12
decreasing to 8.7 overnight increasing to 10
decreasing to 8.7 early in the morning.
Visibility (sm).....8 decreasing to 7 after 3 am.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......PC MC MC MC MC MC MC MC MC MC MC MC
Weather cov..... SCH SCH CHC CHC CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH CHC CHC CHC CHC CHC
Chc of pcpn (%).10 10 10 20 20 30 30 30 30 30 30 40
Chc of thdr (%).10 10 10 10 20 20 20 30 30 30 30 30
Temp............76 75 73 70 69 68 68 67 67 67 66 66
RH..............69 74 79 84 90 93 93 93 97 93 97 93
Surface wnd dir.S S S S S SW SW SW SW SW SW SW
Surface wnd spd.7 7 6 6 6 6 6 7 7 7 7 6
Surface wnd gst.13 12 12 12 10 12 12 12 12 12 10 10
Ceiling (kft)...20 22 23 19 18 15 12 8.7 9.1 9.6 10 8.7
Visibility (sm).10 10 10 10 10 10 10 10 9 8 8 7
.FRIDAY...
Sky/weather.........Mostly sunny (35-45 percent). Chance of showers
and thunderstorms in the morning, then slight
chance of showers and thunderstorms in the
afternoon.
Chance of pcpn......30 percent.
Chance of thunder...31 percent.
Max temperature.....Around 80.
Min humidity........52 percent.
Surface winds (mph).West winds 6 to 9 mph.
Ceiling (kft).......7.3 decreasing to 5.3 in the morning.
Visibility (sm).....7 increasing to 10 late in the morning.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC MC MC MC MC PC PC PC PC MCR MCR MCR
Weather cov.....CHC CHC CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........CHC CHC CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH
Chc of pcpn (%).30 30 30 30 30 30 30 20 20 20 20 20
Chc of thdr (%).30 30 30 30 30 30 30 20 20 20 20 20
Temp............65 67 67 69 72 73 74 76 77 79 79 78
RH..............97 90 93 87 81 76 71 64 60 54 52 54
Surface wnd dir.SW SW SW W W W W W W W W W
Surface wnd spd.6 6 6 6 6 7 7 8 8 8 9 8
Surface wnd gst.9 9 10 10 12 12 13 13 14 14 14 14
Ceiling (kft)...7.3 6.0 5.8 5.5 5.3
Visibility (sm).7 7 7 8 10
$$
Forecaster...Jonathan
Requested by...Justin LeBlanc
Type of request...SAR
.TAG 2520089.6/DLH
.DELDT 08/21/25
.FormatterVersion 2.0.0
.EMAIL nwsduluth-slcrs@noaa.gov,7101@slcrs.org