753  
FNUS73 KDLH 091325  
FWSDLH  
 
SPOT FORECAST FOR LUCILLE...NATIONAL PARK SERVICE  
NATIONAL WEATHER SERVICE DULUTH MN  
825 AM CDT SUN AUG 9 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0900 CDT ON AUGUST 09.  
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  
 
MOSTLY SUNNY, BUT STILL WITH A HAZY LOOK FROM WESTERN CONUS FIRES,  
SKIES TODAY WITH NO RAINFALL FORECAST TODAY. WINDS REMAIN NORTH TO  
NORTHWESTERLY TODAY MAINLY UNDER 10 MPH AS MINIMUM RELATIVE HUMIDITY  
DROPS INTO THE UPPER-30 PERCENT RANGE. EXPECT A BIT MORE WESTERLY  
COMPONENT TO THE WINDS FOR MONDAY DAYTIME. THERE IS A LOW CONFIDENCE,  
BUT STILL 10-20% CHANCE, OF AN OVERNIGHT WEATHER SYSTEM IN THE  
DAKOTAS TO REACH THE FIRE SITE BY MONDAY 0600-0800 CT TIME PERIOD.  
IF THIS WERE TO HAPPEN, THE UPPER-END OF RAINFALL AMOUNTS WOULD BE  
0.25 INCHES, BUT THE MORE LIKELY IS A TENTH OF AN INCH AT MOST.  
   
REST OF TODAY  
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........38 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......3000 FT AGL INCREASING TO 6200 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 7 TO 10 MPH SHIFTING TO THE WEST LATE  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (12100-24600 KNOT-FT) INCREASING  
TO GOOD (59200 KNOT-FT).  
PCPN AMOUNT.........0.00 INCHES.  
 
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......PC MCR MCR MCR MCR MCR PC MC MC  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0  
TEMP............62 66 71 73 73 73 74 74 75  
RH..............80 68 55 48 46 44 41 41 38  
20 FT WIND DIR..N N N NW NW NW NW NW NW  
20 FT WIND SPD..2 2 3 4 4 4 4 4 4  
20 FT WIND GUST.5 7 8 9 10 10 10 10 10  
MIX HGT (KFT)...1.7 3.0 4.1 4.7 5.3 5.6 6.2 6.1 5.9  
TRANSP WIND DIR.N N NW NW NW NW NW NW W  
TRANSP WIND SPD.8 8 7 9 10 9 9 10 12  
SDSPL KT-FT/100012 21 25 38 48 45 49 55 59  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (45-60 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
MIN TEMPERATURE.....AROUND 48.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......5000 FT AGL DECREASING TO 500 FT AGL EARLY IN  
THE EVENING.  
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
SMOKE DISPERSAL.....FAIR TO GOOD (25900-44600 KNOT-FT) DECREASING  
TO POOR (1600 KNOT-FT) EARLY IN THE EVENING.  
PCPN AMOUNT.........0.00 INCHES.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY COVER.......PC PC PC PC MC MC MC MC PC PC MCR MCR  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 10 0 0 0 0 0  
TEMP............74 73 69 63 59 58 57 55 54 53 52 51  
RH..............41 41 51 67 78 80 83 86 90 93 93 96  
20 FT WIND DIR..NW NW NW NW NW W W W W W W W  
20 FT WIND SPD..3 2 2 1 1 1 1 1 1 1 1 1  
20 FT WIND GUST.11 9 7 6 5 5 5 5 5 5 5 5  
MIX HGT (KFT)...5.0 3.2 0.5 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW W W W W  
TRANSP WIND SPD.10 9 8 7 7 7 6 6 6 5 6 6  
SDSPL KT-FT/100045 26 3 3 3 3 2 2 2 2 2 2  
   
MONDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (70-80 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........43 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 6 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......1400 FT AGL INCREASING TO 6500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 6 TO 15 MPH.  
SMOKE DISPERSAL.....POOR TO FAIR (1800-19800 KNOT-FT) INCREASING TO  
EXCELLENT (77200-84000 KNOT-FT) BY THE AFTERNOON.  
PCPN AMOUNT.........0.00 INCHES.  
 
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 MC MC MC  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).5 10 15 15 15 10 0 0 0 0 0 0  
TEMP............49 53 58 62 68 71 72 73 73 74 74 75  
RH..............100 96 90 78 61 53 49 46 48 46 46 43  
20 FT WIND DIR..W W W W W W W W W NW NW NW  
20 FT WIND SPD..1 1 1 2 2 3 5 5 6 5 5 4  
20 FT WIND GUST.5 5 5 6 7 9 11 12 12 12 12 12  
MIX HGT (KFT)...0.4 0.4 0.7 1.4 2.8 4.1 4.7 5.1 6.5 6.4 5.3 6.0  
TRANSP WIND DIR.W W NW W W NW NW NW W W NW W  
TRANSP WIND SPD.6 6 7 8 8 9 10 10 15 14 10 15  
SDSPL KT-FT/10002 2 4 10 20 33 42 46 84 77 47 79  
 
 
FORECASTER...NATHAN  
REQUESTED BY...GREG CARLSON  
TYPE OF REQUEST...WILDFIRE  
.TAG 2619107.3/DLH  
.DELDT 08/09/26  
.FORMATTERVERSION 2.0.0  
.EMAIL GREG_CARLSON@NPS.GOV  
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