621  
FNUS73 KBIS 301057  
FWSBIS  
 
SPOT FORECAST FOR MINOT DERAILMENT...NDDES WATCH CENTER  
NATIONAL WEATHER SERVICE BISMARCK ND  
557 AM CDT WED SEP 30 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 CDT ON SEPTEMBER 30.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
MAINLY SUNNY SKIES WILL BE FOUND ACROSS THE AREA TODAY. WEST SOUTHWEST WIND  
THIS MORNING WILL BECOME A WEST NORTHWEST WIND LATE MORNING OR EARLY THIS  
AFTERNOON WITH GUSTS NEAR 20 MPH. MAINLY CLEAR SKIES WILL REMAIN TONIGHT,  
WITH A STEADY NORTHWEST TO WEST WIND AROUND 10 MPH. SOME INCREASING CLOUDS  
COULD THEN BE FOUND FOR THURSDAY, WITH WEST NORTHWEST WINDS REMAINING NEAR  
10 MPH WITH A FEW HIGHER GUSTS. CHANCE OF RAIN IS VERY LOW TODAY THROUGH  
THURSDAY.  
   
TODAY  
 
SKY/WEATHER.........SUNNY.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 67.  
MIN HUMIDITY........42 PERCENT.  
MAX APPARENT TEMP...65.  
SURFACE WINDS.......WEST SOUTHWEST WINDS 6 TO 12 MPH SHIFTING TO THE  
WEST NORTHWEST 6 TO 15 MPH WITH GUSTS TO AROUND 21 MPH IN THE  
LATE MORNING AND AFTERNOON.  
TRANSPORT WINDS.....NORTHWEST 8 TO 15 MPH.  
SMOKE DISPERSAL.....POOR (3000 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (63000 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........36 38 23 10 10 10 10 4 5 5 17 13  
WEATHER COV.....  
WEATHER TYPE....  
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............50 49 50 52 56 59 61 63 65 65 64 63  
RH..............68 71 71 69 64 60 53 50 45 43 43 43  
APARNT TMP (F)..46 45 47 52 56 59 61 63 65 65 64 63  
SURFACE WND DIR.WSW WSW W W NW NW NW NW NW NW NW NW  
SURFACE WND SPD.9 9 8 6 6 7 7 8 11 12 12 12  
SURFACE WND GST.16 15 14 13 13 14 15 17 20 21 21 20  
TRANSP WIND DIR.W W NW W W W W W W NW NW NW  
TRANSP WIND SPD.10 9 8 8 8 10 12 14 15 14 15 15  
VRATE KT-FT/1K..4 4 3 3 7 13 21 37 53 56 63 61  
VENTRATE CAT....PR PR PR PR PR PR PR PR FR FR GD GD  
DISPR KT-FT/1K..4 4 3 3 7 13 21 37 53 56 63 61  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....AROUND 39.  
MAX HUMIDITY........70 PERCENT.  
MIN APPARENT TEMP...37.  
SURFACE WINDS.......NORTHWEST BECOMING WEST WINDS 6 TO 12 MPH WITH GUSTS TO  
AROUND 20 MPH.  
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.  
SMOKE DISPERSAL.....FAIR (43800 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (4300 KNOT-FT) LATE IN THE  
NIGHT.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........9 5 13 25 24 25 19 16 12 9 6 6  
WEATHER COV.....  
WEATHER TYPE....  
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............61 59 54 51 50 48 47 46 45 44 43 42  
RH..............44 55 66 68 66 68 68 68 65 65 65 65  
APARNT TMP (F)..61 59 54 51 47 44 43 42 41 39 38 37  
SURFACE WND DIR.NW N N NW NW W W W W W W W  
SURFACE WND SPD.11 9 8 7 8 8 8 8 8 8 8 8  
SURFACE WND GST.20 17 14 14 15 15 15 16 16 16 16 16  
TRANSP WIND DIR.NW N N N NW NW NW NW NW NW NW W  
TRANSP WIND SPD.14 12 12 12 12 12 12 12 13 13 13 13  
VRATE KT-FT/1K..44 10 5 5 5 4 5 4 5 5 5 5  
VENTRATE CAT....FR PR PR PR PR PR PR PR PR PR PR PR  
DISPR KT-FT/1K..44 10 5 5 5 4 5 4 5 5 5 5  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY TO PARTLY CLEAR.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 60.  
MIN HUMIDITY........38 PERCENT.  
MIN APPARENT TEMP...33.  
SURFACE WINDS.......WEST NORTHWEST WINDS 8 TO 12 MPH. GUSTS UP TO 20 MPH.  
TRANSPORT WINDS.....NORTHWEST 10 TO 20 MPH.  
SMOKE DISPERSAL.....POOR (4700 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (82200 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........5 7 23 9 18 29 49 60 64 62 47 6  
WEATHER COV.....  
WEATHER TYPE....  
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............40 39 39 45 49 52 55 57 58 58 58 58  
RH..............67 70 70 60 56 50 45 42 40 39 39 39  
APARNT TMP (F)..35 33 33 40 45 52 55 57 58 58 58 58  
SURFACE WND DIR.W W W W NW NW NW NW NW NW NW NW  
SURFACE WND SPD.8 8 8 9 9 11 12 12 12 12 11 9  
SURFACE WND GST.16 16 16 18 18 20 21 21 21 20 20 17  
TRANSP WIND DIR.W NW NW NW NW NW NW NW NW NW NW NW  
TRANSP WIND SPD.13 13 13 13 15 18 17 18 17 17 17 15  
VRATE KT-FT/1K..5 5 6 7 19 48 59 74 71 73 82 62  
VENTRATE CAT....PR PR PR PR PR FR FR GD GD GD GD GD  
DISPR KT-FT/1K..5 5 6 7 19 48 59 74 71 73 82 62  
 
 
FORECASTER...ANGLIN  
REQUESTED BY...NDDES WATCH CENTER  
TYPE OF REQUEST...HAZMAT  
.TAG 2622818.0/BIS  
.DELDT 09/30/26  
.FORMATTERVERSION 2.0.0  
.EMAIL WATCHCENTER@ND.GOV  
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