851  
FNUS73 KFGF 142306  
FWSFGF  
 
SPOT FORECAST FOR LAKE BEMIDJI BRUSH PILE...MN DNR  
NATIONAL WEATHER SERVICE GRAND FORKS ND  
606 PM CDT MON JUL 14 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1800 CDT ON JULY 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CALL THE NWS IN GRAND FORKS AT 701-795-5127 FOR ADDITIONAL  
INFORMATION AND MONITOR OUR WEBSITE (WWW.WEATHER.GOV/FGF) OR NOAA  
ALL-HAZARDS RADIO FOR THE LATEST UPDATES.  
   
DISCUSSION
 
 
WINDS INITIALLY THIS EVENING WILL BE PRIMARILY FROM THE EAST  
SUSTAINED BETWEEN 5 AND 10 KNOTS BUT MAY SHIFT GRADUALLY TO  
SOUTHEASTWARD THROUGH THE MID-EVENING HOURS. BY THE OVERNIGHT  
HOURS, WINDS WILL BE HEAVILY DRIVEN BY WHERE THUNDERSTORMS FORM  
AND HOW THEY INTERACT WITH THE ENVIRONMENT. IF STORMS DON'T  
AFFECT THE WIND PATTERN AT THE SURFACE TOO MUCH, EXPECT GENERALLY  
LIGHT AND VARIABLE WINDS OVERNIGHT, BUT IF THEY DO IMPACT WINDS AT  
THE SURFACE, EXPECT ERRATIC DIRECTIONS WITH INCREASES IN WIND. IF  
THUNDERSTORMS THAT DO DEVELOP TONIGHT BECOME SEVERE, WIND GUSTS UP  
TO 75 MPH CAN BE EXPECTED.  
 
AS WE PROGRESS THROUGH THE MORNING TOMORROW, LINGERING SHOWERS AND  
THUNDERSTORMS WILL EXIST NEAR THE BURN SITE, HOWEVER THE INTENSITY  
SHOULD BE DIMINISHING. WINDS WILL INTENSIFY FROM THE NORTH AND  
GENERALLY BE BETWEEN 5 AND 15 KNOTS SUSTAINED, GUSTS UP TO 20.  
SMOKE FROM CANADIAN WILDFIRES WILL CONTINUE TO LINGER AT TIMES  
THROUGH TOMORROW, WITH PEAK FORECASTS GENERALLY AROUND MID TO LATE  
AFTERNOON FOR THE BURN SITE AREA.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT) THEN BECOMING  
PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN  
SHOWERS WITH THUNDERSTORMS LIKELY OVERNIGHT.  
MIN TEMPERATURE.....AROUND 63.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........EAST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS IN THE EVENING.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS OVERNIGHT, THEN GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS AFTER 3 AM.  
MIXING HEIGHT.......500 FT AGL.  
MIXING WINDS........SOUTHEAST AROUND 10 MPH SHIFTING TO THE EAST  
LATE IN THE EVENING.  
SMOKE DISPERSAL.....28300 KNOT-FT EARLY IN THE EVENING DECREASING  
TO 3800 KNOT-FT LATE IN THE NIGHT.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........51 48 40 38 49 66 71 78 80 85 91 90  
WEATHER COV.....SCH SCH SCH SCH CHC CHC CHC LKY LKY DEF LKY LKY  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........SCH SCH SCH SCH CHC CHC CHC LKY LKY LKY CHC CHC  
TEMP............77 75 73 72 71 68 67 66 65 65 65 63  
RH..............62 66 73 77 79 84 87 90 97 93 93 100  
20 FT WIND DIR..E SE E E SE E E E SE E E E  
20 FT WIND SPD..10 10 10 10 5 5 5 5 5 5 5 5  
20 FT WIND GUST.14 14 14 13 11 11 9 9 9 9 9 9  
MIX HGT (KFT)...2.8 1.7 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5  
MIXING WIND DIR.S S SE S SE E E SE E E NE NE  
MIXING WIND SPD.10 10 10 10 10 10 10 10 10 10 10 10  
VRATE KT-FT/1K..28 15 6 4 4 4 5 4 4 5 4 4  
   
TUESDAY
 
 
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SHOWERS AND CHANCE OF  
THUNDERSTORMS.  
MAX TEMPERATURE.....AROUND 73.  
MIN HUMIDITY........73 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS AROUND 5 MPH SHIFTING TO THE  
NORTH IN THE LATE MORNING AND AFTERNOON. GUSTY  
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.  
MIXING HEIGHT.......2200 FT AGL.  
MIXING WINDS........NORTHEAST AROUND 10 MPH SHIFTING TO THE NORTH  
IN THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....3100 KNOT-FT EARLY IN THE MORNING INCREASING TO  
31100 KNOT-FT IN THE AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........86 94 89 85 87 84 88 84 82 93 93 88  
WEATHER COV.....LKY LKY DEF DEF LKY LKY CHC CHC LKY DEF DEF LKY  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC  
TEMP............64 65 66 67 67 69 70 70 70 70 71 69  
RH..............97 93 97 97 93 90 87 81 78 78 73 76  
20 FT WIND DIR..E NE NE N N N N N N N N N  
20 FT WIND SPD..5 5 5 5 5 5 5 10 10 10 10 10  
20 FT WIND GUST.9 9 11 12 13 14 14 15 16 18 18 18  
MIX HGT (KFT)...0.4 0.4 0.8 0.8 1.0 1.3 1.7 2.0 2.2 2.2 2.0 2.1  
MIXING WIND DIR.E E NE N N N N N N N N N  
MIXING WIND SPD.10 10 10 10 10 15 15 15 15 15 15 15  
VRATE KT-FT/1K..3 3 6 6 10 15 23 26 24 24 24 31  
   
TUESDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY AND  
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING,  
THEN CHANCE OF RAIN SHOWERS.  
MIN TEMPERATURE.....AROUND 54.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
EVENING.  
MIXING HEIGHT.......700 FT AGL.  
MIXING WINDS........NORTHEAST AROUND 15 MPH.  
SMOKE DISPERSAL.....36600 KNOT-FT EARLY IN THE EVENING DECREASING  
TO 8800 KNOT-FT LATE IN THE NIGHT.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........86 82 84 84 87 97 95 93 92 91 90 88  
WEATHER COV.....LKY CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........CHC  
TEMP............68 67 65 64 62 61 59 58 58 57 57 56  
RH..............78 75 84 87 90 90 96 100 96 96 93 96  
20 FT WIND DIR..N N N N N N NE NE NE NE NE NE  
20 FT WIND SPD..10 10 10 5 5 5 5 5 5 5 5 5  
20 FT WIND GUST.18 16 15 14 14 14 14 14 14 14 14 14  
MIX HGT (KFT)...2.4 2.0 1.4 0.7 0.9 0.8 0.8 0.8 0.8 0.8 0.8 1.0  
MIXING WIND DIR.N N N N NE NE NE NE NE NE NE NE  
MIXING WIND SPD.15 15 15 15 15 15 15 15 15 15 15 15  
VRATE KT-FT/1K..37 26 20 9 11 11 10 9 9 9 10 13  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN  
SHOWERS.  
MAX TEMPERATURE.....AROUND 68.  
MIN HUMIDITY........61 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......4100 FT AGL.  
MIXING WINDS........NORTHEAST AROUND 15 MPH.  
SMOKE DISPERSAL.....16300 KNOT-FT EARLY IN THE MORNING INCREASING  
TO 53900 KNOT-FT IN THE AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........87 85 83 80 78 76 74 72 75 78 81 78  
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........  
TEMP............55 55 56 58 60 62 63 65 65 65 66 65  
RH..............100 100 96 87 81 72 70 63 63 63 61 63  
20 FT WIND DIR..NE NE NE NE NE NE NE NE NE NE NE NE  
20 FT WIND SPD..5 5 5 10 10 10 10 10 10 10 10 10  
20 FT WIND GUST.15 15 15 15 15 16 16 18 18 18 18 16  
MIX HGT (KFT)...1.2 1.4 1.9 2.3 2.7 3.2 3.7 4.1 4.0 3.9 3.8 3.2  
MIXING WIND DIR.NE NE NE NE NE NE NE NE NE NE N N  
MIXING WIND SPD.15 15 15 15 15 15 15 15 15 15 15 15  
VRATE KT-FT/1K..16 20 26 32 38 44 49 54 51 49 46 36  
 

 
FORECASTER...AP  
REQUESTED BY...JEFF MARJAMAA  
TYPE OF REQUEST...WILDFIRE  
.TAG 2518010.0/FGF  
.DELDT 07/14/25  
.FORMATTERVERSION 2.0.0  
.EMAIL JEFFREY.MARJAMAA@STATE.MN.US  
 
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