Suppression Forecast
Issued by NWS Duluth, MN

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6
655
FNUS73 KDLH 211400
FWSDLH

Spot Forecast for Koochiching County SAR...St. Louis County Rescue Squad
National Weather Service Duluth MN
900 AM CDT Sat Jun 21 2025

Forecast is based on forecast start time of 0900 CDT on June 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.

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM CDT SUNDAY...

.DISCUSSION...

Lingering partly to mostly cloudy skies this morning are expected
to become mostly sunny early this afternoon. Currently light wind
with variable wind direction will become north-northeast around
midday with speeds around 4-6 mph. Winds continue to veer to the
east through the afternoon with similar wind speed. Expect very
warm temperatures today with highs in the mid 80s. Cloud cover
increases late this afternoon as scattered showers move north
towards the SAR location. Timing for these scattered showers will
be as early as 2000 today, but the greatest confidence for time of
arrival is 2200 today. These scattered showers will continue on
and off over the SAR location until early Sunday morning with a
30% chance for an isolated thunderstorm.

Additional showers and thunderstorms arrive mid Sunday morning
and continue into the afternoon. Expect another hot day tomorrow.
Thunderstorms late Sunday afternoon into the evening may become
strong to severe capable of producing strong winds and large hail.
Wind direction on Sunday will be southeast with speeds around 10
mph and gusts of 15 to 20 mph.

.REST OF TODAY...

Sky/weather.........Mostly sunny (45-55 percent).
Chance of pcpn......10 percent.
Chance of thunder...9 percent.
Max temperature.....Around 84.
Min humidity........59 percent.
Surface winds (mph).Light winds becoming northeast around 6 mph
                    late in the afternoon.
Ceiling (kft).......1.7 increasing to 24.
Visibility (sm).....10.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC  MC  MC  PC  PC  PC  PC  PC  MCR
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  0   0   0   0   0   0   0   10
Chc of thdr (%).10  0   0   0   0   0   0   0   10
Temp............71  73  74  77  79  82  82  83  83
RH..............81  79  78  71  68  61  61  59  60
Surface wnd dir.W   N   N   N   NE  NE  NE  NE  NE
Surface wnd spd.3   3   4   4   4   4   6   6   6
Surface wnd gst.7   9   9   9   9   9   10  10  12
Ceiling (kft)...1.7 4.9 6.3 7.7 12  16  24  24  25
Visibility (sm).10  10  10  10  10  10  10  10  10

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (55-65 percent). Chance of
                    showers and slight chance of thunderstorms
                    through the night.
Chance of pcpn......30 percent.
Chance of thunder...22 percent.
Min temperature.....Around 65.
Max humidity........100 percent.
Surface winds (mph).East winds around 6 mph.
Ceiling (kft).......21 decreasing to 1.0.
Visibility (sm).....9 decreasing to 7 after 3 am.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......PC  PC  PC  MC  MC  MC  MC  MC  MC  MC  MC  MC
Weather cov.....        SCH SCH CHC CHC CHC CHC CHC CHC SCH SCH
Weather type....        RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........        SCH SCH SCH SCH SCH SCH SCH SCH
Chc of pcpn (%).10  10  20  20  30  30  30  30  30  30  20  20
Chc of thdr (%).10  10  20  20  20  20  20  20  20  20  10  10
Temp............82  81  80  75  72  71  71  70  69  67  66  66
RH..............61  65  69  81  89  92  92  95  100 99  100 98
Surface wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Surface wnd spd.6   6   6   6   6   6   4   4   4   4   4   4
Surface wnd gst.12  13  14  14  14  14  13  13  13  12  12  12
Ceiling (kft)...23  23  21  9.8 6.5 6.1 6.6 5.8 5.3 3.8 1.9 1.0
Visibility (sm).10  10  10  10  10  10  10  10  10  9   8   7

.SUNDAY...

Sky/weather.........Partly sunny (50-60 percent). Patchy fog early
                    in the morning. Chance of showers and slight
                    chance of thunderstorms in the morning, then
                    showers and thunderstorms likely in the
                    afternoon.
Chance of pcpn......60 percent.
Chance of thunder...59 percent.
Max temperature.....Around 88.
Min humidity........61 percent.
Surface winds (mph).South winds 6 to 10 mph. Gusts up to 20 mph
                    late in the afternoon.
Ceiling (kft).......0.9 decreasing to 0.7 early in the morning,
                    then increasing to 1.3 early in the morning
                    increasing to 1.8 late in the morning
                    increasing to 2.4 increasing to 3.0 late in the
                    morning increasing to 4.3 increasing to 6.2
                    early in the afternoon increasing to 8.1
                    increasing to 10 late in the afternoon.
Visibility (sm).....5 increasing to 8 early in the morning, then
                    increasing to 9 in the late morning and early
                    afternoon decreasing to 5 late in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC  MC  MC  MC  MC  MC  MC  MC  MC  MC  PC  MC
Weather cov.....SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC LKY
Weather type....RNF RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                SCH SCH SCH CHC CHC CHC CHC LKY
Chc of pcpn (%).20  20  20  20  20  30  40  40  50  50  50  60
Chc of thdr (%).10  10  10  10  20  20  20  40  50  50  50  60
Temp............65  67  70  72  76  78  81  83  83  84  85  86
RH..............99  99  97  89  78  78  68  68  68  68  65  63
Surface wnd dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  S
Surface wnd spd.6   6   6   6   6   6   6   7   8   9   10  10
Surface wnd gst.12  12  12  13  13  13  14  15  16  18  20  20
Ceiling (kft)...0.9 0.7 1.3 1.8 2.4 3.0 3.7 4.3 6.2 8.1 10
Visibility (sm).5   6   8   8   10  10  10  10  9   7   5

$$
Forecaster...Woody
Requested by...Kaitlyn Johnson
Type of request...SAR
.TAG 2516354.0/DLH
.DELDT 06/21/25
.FormatterVersion 2.0.0
.EMAIL nwsduluth-slcrs@noaa.gov,7102@slcrs.org