828  
FNUS73 KDLH 181718  
FWSDLH  
 
SPOT FORECAST FOR SUPERIOR SAR...SLCRS  
NATIONAL WEATHER SERVICE DULUTH MN  
1218 PM CDT MON AUG 18 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1200 CDT ON AUGUST 18.  
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  
 
OFF AND ON RAIN SHOWERS CONTINUE WITH A VERY LOW CHANCE FOR AN  
EMBEDDED THUNDERSTORM FOR THE NEXT 1-2 HOURS, ENDING BY ABOUT 2 PM  
WITH CLOUDY SKIES PERSISTING THROUGH THE REST OF THE DAY. NORTH  
WINDS OFF OF LAKE SUPERIOR WILL CONTINUE THROUGH THE EVENING, WITH  
NEAR CALM WINDS OVERNIGHT. STARTING OFF CLOUDY TUESDAY MORNING  
THEN SUN BREAKS OUT BY LATE MORNING WITH SUNNY SKIES IN THE  
AFTERNOON AND TEMPERATURES RISING. HIGHS IN THE MID TO UPPER 70S  
WITH LIGHT NORTH WINDS AROUND 5-8 MPH THROUGH THE DAY. SUNNY AND  
WARMER EACH DAY WEDNESDAY AND THURSDAY. AFTER THE RAIN ENDS TODAY,  
THE NEXT CHANCE FOR PRECIPITATION FOR THIS INCIDENT LOCATION WILL  
BE ON THURSDAY NIGHT.  
   
REST OF TODAY  
 
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SLIGHT CHANCE OF  
THUNDERSTORMS EARLY IN THE AFTERNOON. SLIGHT  
CHANCE OF SHOWERS EARLY IN THE AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
CHANCE OF THUNDER...16 PERCENT.  
MAX TEMPERATURE.....AROUND 68.  
MIN HUMIDITY........87 PERCENT.  
SURFACE WINDS (MPH).NORTHEAST WINDS AROUND 8 MPH.  
CEILING (KFT).......0.8 INCREASING TO 0.9 LATE IN THE AFTERNOON.  
VISIBILITY (SM).....7.  
 
TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......CDY MC CDY MC CDY MC  
WEATHER COV.....SCH SCH  
WEATHER TYPE....RW RW  
TSTM COV........SCH  
CHC OF PCPN (%).20 20 10 10 10 10  
CHC OF THDR (%).20 10 10 10 10 10  
TEMP............63 64 65 65 66 67  
RH..............97 97 93 93 93 90  
SURFACE WND DIR.E E NE NE NE NE  
SURFACE WND SPD.8 8 8 8 8 8  
SURFACE WND GST.13 13 13 13 13 13  
CEILING (KFT)...0.8 0.8 0.8 0.8 0.9 0.9  
VISIBILITY (SM).8 8 7 7 7 7  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). PATCHY FOG IN  
THE LATE EVENING AND OVERNIGHT.  
CHANCE OF PCPN......10 PERCENT.  
CHANCE OF THUNDER...8 PERCENT.  
MIN TEMPERATURE.....AROUND 63.  
MAX HUMIDITY........100 PERCENT.  
SURFACE WINDS (MPH).NORTH WINDS 6 TO 7 MPH IN THE EVENING BECOMING  
LIGHT.  
CEILING (KFT).......0.8 DECREASING TO 0.7 EARLY IN THE EVENING,  
THEN DECREASING TO 0.6 EARLY IN THE EVENING  
DECREASING TO 0.4 LATE IN THE EVENING  
INCREASING TO 0.5 INCREASING TO 0.6 OVERNIGHT  
INCREASING TO 0.8 INCREASING TO 1.0 AFTER 3 AM  
DECREASING TO 0.9.  
VISIBILITY (SM).....7 DECREASING TO 1.25.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY COVER.......MC MC MC MC MC MC MC MC MC MC MC MC  
WEATHER COV..... PTY PTY PTY PTY PTY PTY PTY PTY  
WEATHER TYPE.... FOG FOG FOG FOG FOG FOG FOG FOG  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 0 0 0 0 0 0 0 0  
CHC OF THDR (%).10 10 10 0 0 0 0 0 0 0 0 0  
TEMP............66 68 66 64 64 64 63 63 63 63 63 63  
RH..............93 87 93 100 100 100 100 100 100 100 97 97  
SURFACE WND DIR.NE NE NE NE NE N N NW W W W W  
SURFACE WND SPD.7 6 6 4 4 4 3 3 3 3 4 4  
SURFACE WND GST.12 10 9 8 8 7 7 7 7 7 7 7  
CEILING (KFT)...0.8 0.7 0.6 0.4 0.4 0.5 0.6 0.8 0.8 1.0 1.1 0.9  
VISIBILITY (SM).7 7 7 7 4 2.5 2.2 1.8 1.8 1.5 1.2 1.2  
   
TUESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). PATCHY FOG EARLY  
IN THE MORNING.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF THUNDER...2 PERCENT.  
MAX TEMPERATURE.....AROUND 78.  
MIN HUMIDITY........58 PERCENT.  
SURFACE WINDS (MPH).LIGHT WINDS BECOMING NORTH AROUND 6 MPH IN THE  
LATE MORNING AND AFTERNOON.  
CEILING (KFT).......1.1 DECREASING TO 0.8 EARLY IN THE MORNING,  
THEN INCREASING TO 1.0 EARLY IN THE MORNING  
INCREASING TO 1.5 LATE IN THE MORNING  
INCREASING TO 3.7 INCREASING TO 5.8 EARLY IN  
THE AFTERNOON INCREASING TO 7.9 INCREASING TO  
11 LATE IN THE AFTERNOON INCREASING TO 16.  
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 MC MC MC PC PC 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............63 64 65 67 70 73 73 76 76 77 78 77  
RH..............97 97 97 93 84 76 76 69 60 60 58 60  
SURFACE WND DIR.W W NW NW N N N N N N N N  
SURFACE WND SPD.4 4 4 4 4 6 6 6 6 6 6 6  
SURFACE WND GST.7 7 7 7 8 9 9 10 12 12 12 10  
CEILING (KFT)...1.1 0.8 1.0 1.2 1.5 3.7 5.8 7.9 11 11 12 16  
VISIBILITY (SM).1.2 1.8 4 7 9 9 10 10 10 10 10 10  
 
 
FORECASTER...JOE  
REQUESTED BY...JUSTIN LEBLANC  
TYPE OF REQUEST...SAR  
.TAG 2520089.2/DLH  
.DELDT 08/18/25  
.FORMATTERVERSION 2.0.0  
.EMAIL NWSDULUTH-SLCRS@NOAA.GOV,7101@SLCRS.ORG  
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