352
FNUS73 KBIS 211719
FWSBIS
SPOT FORECAST FOR MINOT AFB RX 2026...USFWS
NATIONAL WEATHER SERVICE BISMARCK ND
1219 PM CDT TUE APR 21 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LOW PRESSURE WILL DEVELOP OVER EASTERN MONTANA ON WEDNESDAY
RESULTING IN EAST TO SOUTHEAST WINDS OVER THE BURN SITE. THE
SURFACE LOW PRESSURE SYSTEM WILL MOVE INTO WESTERN NORTH DAKOTA
WEDNESDAY EVENING THEN WILL TRACK OVER THE BURN SITE LATE
WEDNESDAY NIGHT INTO EARLY THURSDAY. THIS WILL RESULT IN WINDS
SHIFTING SOUTH WEDNESDAY NIGHT, THEN SOUTHWEST TO WEST THURSDAY.
ON WEDNESDAY, LOOK FOR EAST WINDS 5 TO 10 MPH AT IGNITION TIME,
GRADUALLY INCREASING THROUGH THE MORNING TO 15 TO 20 MPH BY LATE
MORNING TO EARLY AFTERNOON. BY MID TO LATE AFTERNOON WINDS ARE
FORECAST TO BE SOUTHEAST AROUND 20 MPH WITH GUSTS TO 26-28 MPH.
WEDNESDAY EVENING SOUTHEAST WINDS WILL SHIFT TO THE SOUTH WITH
WIND SPEEDS OF 10 TO 20 MPH. ON THURSDAY LOOK FOR SOUTHWEST TO
WEST WINDS 15 TO 25 MPH BECOMING WESTERLY 20 TO 30 MPH IN THE
AFTERNOON.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........EAST WINDS 6 TO 14 MPH INCREASING TO 16 TO 19
MPH WITH GUSTS TO AROUND 26 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....EAST 10 TO 17 MPH SHIFTING TO THE SOUTHEAST 21
TO 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (3500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (92400 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 59 61 63 65 67 69 70 71 72 67
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0
TEMP............45 48 52 57 62 66 70 73 76 77 78
RH..............82 77 66 55 46 40 35 33 32 32 32
20 FT WIND DIR..E E E E E E E E SE SE SE
20 FT WIND SPD..6 8 10 12 14 16 17 18 20 20 19
20 FT WIND GUST.12 14 15 19 20 22 25 26 26 28 26
MIX HGT (KFT)...0.4 0.5 0.8 1.2 1.4 1.7 2.0 2.9 3.7 4.2 3.8
TRANSP WIND DIR.E E E E E SE SE SE SE SE SE
TRANSP WIND SPD.10 10 12 14 17 21 23 25 25 25 23
DISPR KT-FT/1K..4 4 8 14 21 29 41 62 83 92 78
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN.
CHANCE OF PCPN......20 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 12 TO 17 MPH SHIFTING TO THE
SOUTH EARLY IN THE MORNING. GUSTS UP TO 29 MPH.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........61 54 51 52 57 64
WEATHER COV..... S CHC S CHC S CHC S CHC S CHC
WEATHER TYPE....NONE RAIN RAIN RAIN RAIN RAIN
TSTM COV........
CHC OF PCPN (%).0 20 20 20 20 20
20 FT WIND......SE 17 SE 15 SE 12 S 12 S 12 S 12
20 FT WIND GUST.25 22 20 19 19 19
THURSDAY
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF RAIN EARLY IN
THE MORNING, THEN CHANCE OF RAIN IN THE
MORNING. RAIN LIKELY IN THE AFTERNOON.
CHANCE OF PCPN......60 PERCENT.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........55 PERCENT.
WIND (20 FT)........BREEZY. SOUTHWEST WINDS 12 TO 15 MPH WITH GUSTS
TO AROUND 24 MPH SHIFTING TO THE WEST 17 TO 25
MPH WITH GUSTS TO AROUND 35 MPH IN THE LATE
MORNING AND AFTERNOON.
TIME (CDT) 6 AM 9 AM NOON 3 PM
SKY (%).........60 69 68 68
WEATHER COV.....S CHC CHANCE CHANCE LIKELY
WEATHER TYPE....RAIN RAIN RAIN RAIN
TSTM COV........
CHC OF PCPN (%).20 40 40 60
TEMP............53 55 59 57
RH..............71 69 60 55
20 FT WIND......S 12G19 SW 15G24 W 19G28 W 23G32
FORECASTER...HAMILTON
REQUESTED BY...BELA HARRINGTON
TYPE OF REQUEST...PRESCRIBED
.TAG 2611188.0/BIS
.DELDT 04/21/26
.FORMATTERVERSION 2.0.0
.EMAIL BELA_HARRINGTON@FWS.GOV
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