


Spot Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
325 FNUS73 KDLH 200826 FWSDLH Spot Forecast for Superior SAR...SLCRS National Weather Service Duluth MN 326 AM CDT Wed Aug 20 2025 Forecast is based on forecast start time of 0600 CDT on August 20. 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... A very typical August day with patchy fog this morning. Clouds will continue to clear through the day. Highs will be in the low 70s with northeast winds between 5-10 mph. Waves will remain less than a foot. No precipitation for today. .TODAY... Sky/weather.........Mostly cloudy (70-80 percent) then becoming sunny (20-30 percent). Patchy dense fog early in the morning. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 73. Min humidity........68 percent. Surface winds (mph).Light winds becoming northeast around 6 mph in the late morning and afternoon. Ceiling (kft).......0.9 decreasing to 0.6 early in the morning, then increasing to 0.9 early in the morning decreasing to 0.7 late in the morning increasing to 2.1 increasing to 3.1 early in the afternoon increasing to 6.2 increasing to 16 early in the afternoon increasing to 22 increasing to 25 late in the afternoon. Visibility (sm).....1.25 increasing to 9. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MC MC CDY MC MC MC MC PC PC MCR MCR MCR Weather cov.....PTY PTY PTY Weather type....FOG FOG 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............62 62 64 65 66 67 68 69 71 71 71 73 RH..............93 97 93 90 90 87 84 81 73 76 76 68 Surface wnd dir.NE NE NE NE NE NE E E E NE NE NE Surface wnd spd.3 3 3 3 4 4 4 4 6 6 6 6 Surface wnd gst.5 5 5 6 7 7 7 8 8 8 8 8 Ceiling (kft)...0.9 0.6 0.9 0.9 0.7 2.1 3.1 6.2 16 22 25 25 Visibility (sm).1.2 1.2 5 6 9 10 10 10 10 10 10 10 .TONIGHT... Sky/weather.........Mostly clear (20-30 percent) then becoming mostly cloudy (50-60 percent). Patchy dense fog early in the morning. Chance of pcpn......0 percent. Chance of thunder...0 percent. Min temperature.....Around 58. Max humidity........100 percent. Surface winds (mph).Northeast winds around 6 mph early in the evening becoming light. Ceiling (kft).......23 decreasing to 5.8. Visibility (sm).....8 decreasing to 5. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......MCR MCR MCR MCR MCR PC PC PC MC MC MC MC 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............71 70 68 65 63 62 61 60 60 60 59 58 RH..............73 76 81 90 97 97 100 100 100 96 96 100 Surface wnd dir.NE NE NE NE NE NE NE NE NE E E E Surface wnd spd.6 4 4 4 3 3 3 2 2 2 2 2 Surface wnd gst.8 7 7 6 6 5 3 Ceiling (kft)...25 25 25 25 24 23 21 18 15 11 8.1 5.8 Visibility (sm).10 10 10 10 10 8 8 8 7 7 6 5 .THURSDAY... Sky/weather.........Mostly sunny (45-55 percent). Patchy dense fog early in the morning. Patchy dense fog late in the morning. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 80. Min humidity........62 percent. Surface winds (mph).Light winds becoming south 6 to 7 mph in the afternoon. Ceiling (kft).......3.5 decreasing to 1.2 early in the morning, then increasing to 5.4 early in the morning increasing to 9.7 late in the morning increasing to 14. Visibility (sm).....3 decreasing to 2.00 early in the morning, then increasing to 5 early in the morning increasing to 7 late in the morning increasing to 10. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MC MC MC PC PC PC PC PC PC PC PC PC Weather cov.....PTY PTY PTY PTY PTY Weather type....FOG FOG FOG FOG 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............58 59 61 63 67 71 74 75 77 78 78 78 RH..............100 96 93 90 81 76 69 66 62 62 62 62 Surface wnd dir.SE SE SE SE SE SE S S S S S S Surface wnd spd.2 2 2 2 3 3 4 6 7 7 7 7 Surface wnd gst.3 3 3 3 5 6 8 9 9 10 10 10 Ceiling (kft)...3.5 1.2 5.4 9.7 14 Visibility (sm).3 2.0 5 7 10 10 10 $$ Forecaster...Lee Requested by...Justin LeBlanc Type of request...SAR .TAG 2520089.5/DLH .DELDT 08/20/25 .FormatterVersion 2.0.0 .EMAIL nwsduluth-slcrs@noaa.gov,7101@slcrs.org