138  
FNUS73 KBIS 241125  
FWSBIS  
 
SPOT FORECAST FOR BISMARCK PMC...USDA-NRCS  
NATIONAL WEATHER SERVICE BISMARCK ND  
625 AM CDT THU APR 24 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 24.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
MOSTLY CLOUDY SKIES ARE EXPECTED SHORTLY AFTER SUNRISE TODAY, WITH  
CHANCES FOR RAIN INCREASING FROM THE LATE MORNING ONWARDS THROUGH  
THE LATE EVENING. MINIMUM RELATIVE HUMIDITY VALUES WILL DECREASE TO  
AROUND 42 PERCENT TODAY, ALONG WITH GENERALLY LIGHT EASTERLY WINDS.  
ONCE RAIN ENDS LATER TONIGHT, CLOUD COVERAGE WILL DECREASE, WITH  
RELATIVE HUMIDITY VALUES RECOVERING TO AROUND 85 PERCENT. ON FRIDAY,  
HUMIDITY VALUES WILL DECREASE DOWN TO AROUND 26 PERCENT, WITH  
GENERALLY EASTERLY WINDS AROUND 5 TO 10 MPH, WITH SOME GUSTS UP TO  
AROUND 15 MPH. HIGHS ON FRIDAY WILL BE SLIGHTLY WARMER, AROUND 62  
DEGREES.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
LATE IN THE MORNING, BECOMING LIKELY IN THE  
EVENING.  
CWR.................0 PERCENT INCREASING TO 20 PERCENT IN THE  
AFTERNOON.  
CHANCE OF PCPN......60 PERCENT.  
CHANCE OF THUNDER...3 PERCENT.  
MAX TEMPERATURE.....AROUND 55.  
MIN HUMIDITY........42 PERCENT.  
WIND (20 FT)........LIGHT EAST WINDS.  
MIXING HEIGHT.......5400 FT AGL.  
TRANSPORT WINDS.....EAST 6 TO 9 MPH.  
SMOKE DISPERSAL.....POOR (2600 KNOT-FT).  
 
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........67 73 78 84 86 89 91 93 93 91 93  
WEATHER COV..... SCH SCH CHC CHC CHC LKY LKY  
WEATHER TYPE.... RW RW RW RW RW RW RW  
TSTM COV........  
CWR.............0 0 0 0 0 0 20 20 20 20 20  
CHC OF PCPN (%).10 10 10 10 20 20 30 40 50 60 60  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0  
TEMP............37 40 43 46 49 51 52 54 54 53 53  
RH..............85 79 72 65 58 54 50 45 42 46 48  
20 FT WIND DIR..NE E E E E E E E E E E  
20 FT WIND SPD..1 1 2 3 4 4 5 5 6 6 6  
20 FT WIND GUST.2 3 4 6 6 7 9 9 10 11 10  
MIX HGT (KFT)...0.4 0.5 0.7 1.5 3.4 4.3 5.1 5.4 5.3 4.8 4.3  
TRANSP WIND DIR.E E E SE SE E E E E E NE  
TRANSP WIND SPD.7 7 6 7 7 8 8 8 8 9 8  
DISPR KT-FT/1K..3 3 3 9 21 30 36 38 37 38 30  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
CHANCE OF RAIN SHOWERS EARLY IN THE EVENING.  
CWR.................20 PERCENT DECREASING TO 0 PERCENT.  
CHANCE OF PCPN......40 PERCENT.  
CHANCE OF THUNDER...3 PERCENT.  
MIN TEMPERATURE.....AROUND 32.  
MAX HUMIDITY........85 PERCENT.  
WIND (20 FT)........LIGHT AND VARIABLE.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 6 TO 8 MPH SHIFTING TO THE NORTH  
AROUND 6 MPH LATE IN THE EVENING, THEN SHIFTING  
TO THE WEST 5 TO 8 MPH IN THE LATE EVENING AND  
OVERNIGHT SHIFTING TO THE NORTHWEST AROUND 8  
MPH OVERNIGHT.  
SMOKE DISPERSAL.....POOR (2000 KNOT-FT).  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........92 91 85 77 73 74 69 57 49 42 39 39  
WEATHER COV.....CHC CHC  
WEATHER TYPE....RW RW  
TSTM COV........  
CWR.............20 0 0 0 0 0 0 0 0 0 0 0  
CHC OF PCPN (%).40 30 10 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............53 51 49 47 45 43 41 40 39 37 36 35  
RH..............48 52 58 63 65 70 76 79 79 82 84 85  
20 FT WIND DIR..E E E SE W W NW NW NW NW NW NW  
20 FT WIND SPD..6 6 5 4 3 3 3 3 3 3 3 3  
20 FT WIND GUST.11 11 8 7 6 5 5 5 5 5 5 5  
MIX HGT (KFT)...3.7 3.1 1.7 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4  
TRANSP WIND DIR.NE E NE N W W W NW NW N NW N  
TRANSP WIND SPD.8 7 6 6 6 5 6 8 8 8 8 8  
DISPR KT-FT/1K..26 19 9 3 3 2 3 3 3 3 3 3  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 62.  
MIN HUMIDITY........26 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 10 MPH LATE IN  
THE MORNING.  
MIXING HEIGHT.......6900 FT AGL.  
TRANSPORT WINDS.....NORTH 8 TO 10 MPH SHIFTING TO THE EAST 10 TO 12  
MPH LATE IN THE MORNING.  
SMOKE DISPERSAL.....POOR (3200 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (63500 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........38 52 50 31 32 26 27 28 25 22 19 17  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
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............34 33 36 41 48 52 55 57 59 60 61 62  
RH..............89 89 82 70 56 48 41 35 31 29 25 23  
20 FT WIND DIR..NW NW N N NE NE E E E E E E  
20 FT WIND SPD..3 3 3 3 4 5 5 6 7 7 8 9  
20 FT WIND GUST.5 6 6 7 8 9 10 11 12 13 13 13  
MIX HGT (KFT)...0.4 0.5 0.6 1.0 2.3 4.0 4.9 5.8 6.2 6.6 6.9 6.7  
TRANSP WIND DIR.N N N N NE NE E E E E E E  
TRANSP WIND SPD.9 8 8 8 10 12 12 12 12 10 10 10  
DISPR KT-FT/1K..4 3 4 7 21 40 50 58 60 60 62 64  
 

 
FORECASTER...BESSON  
REQUESTED BY...LUCAS SCHMIESING  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2511475.1/BIS  
.DELDT 04/24/25  
.FORMATTERVERSION 2.0.0  
.EMAIL LUCAS.SCHMIESING@USDA.GOV  
 
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