521
FNUS73 KBIS 061718
FWSBIS
SPOT FORECAST FOR MINOR RX...USFWS
NATIONAL WEATHER SERVICE BISMARCK ND
1218 PM CDT MON OCT 6 2025
FORECAST IS BASED ON IGNITION TIME OF 1400 CDT ON OCTOBER 06.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
TODAY, TEMPERATURES ARE FORECAST TO CLIMB UP TO AROUND 58 DEGREES THIS
AFTERNOON. MINIMUM RELATIVE HUMIDITY IS FORECAST TO DROP DOWN AROUND
40 PERCENT THIS AFTERNOON. WINDS ARE FORECAST TO SIT AROUND 15 MPH OUT
OF THE WEST WITH WIND GUSTS UP AROUND 25 MPH THIS AFTERNOON. WINDS WILL
DIE DOWN TONIGHT AND SHIFT OUT OF THE NORTH AS A WEAK FRONT MOVES
THROUGH THE REGION. SMOKE DISPERSAL IS VERY GOOD THIS AFTERNOON. TONIGHT
OVERNIGHT RECOVERIES WILL BE EXCELLENT AS FUELS LIKELY BE SATURATED.
TOMORROW, TEMPERATURES ARE FORECAST TO CLIMB UP TO AROUND 59 DEGREES BY
THE AFTERNOON. MINIMUM RELATIVE HUMIDITY IS FORECAST TO DROP DOWN AROUND
45 PERCENT FRIDAY AFTERNOON. WINDS ARE FORECAST TO SIT AROUND 8 MPH OUT
OF THE SOUTH WITH WIND GUSTS UP AROUND 14 MPH BY THE AFTERNOON. SMOKE
DISPERSAL IS POOR TOMORROW MORNING AND FAIR BY THE AFTERNOON.
REST OF TODAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........41 PERCENT.
WIND (20 FT)........WEST WINDS 14 TO 16 MPH WITH GUSTS TO AROUND 25
MPH.
MIXING HEIGHT.......5200 FT AGL.
TRANSPORT WINDS.....WEST 26 TO 29 MPH.
SMOKE DISPERSAL.....VERY GOOD (100900 KNOT-FT).
TIME (CDT) 2PM 3PM 4PM 5PM
SKY (%).........2 4 2 6
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0
CHC OF PCPN (%).0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............56 56 56 58
RH..............44 42 43 41
20 FT WIND DIR..W W W W
20 FT WIND SPD..16 16 16 14
20 FT WIND GUST.24 25 24 22
MIX HGT (KFT)...4.8 5.2 4.9 4.4
TRANSP WIND DIR.W W W W
TRANSP WIND SPD.28 29 28 26
DISPR KT-FT/1K..115 131 118 101
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................1 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...1 PERCENT.
MIN TEMPERATURE.....AROUND 32.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 12 MPH SHIFTING TO THE NORTH 5
TO 6 MPH OVERNIGHT, THEN BECOMING LIGHT AFTER 3
AM.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 20 MPH SHIFTING TO THE NORTH 8 TO 12
MPH OVERNIGHT.
SMOKE DISPERSAL.....FAIR (45500 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (3100 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........7 3 12 25 21 17 26 19 13 12 22 26
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............56 53 51 46 44 42 41 39 37 36 34 34
RH..............46 50 55 65 70 73 73 79 85 85 91 90
20 FT WIND DIR..W W W W W W NW NW N N N N
20 FT WIND SPD..12 9 9 8 8 7 6 6 5 5 4 4
20 FT WIND GUST.19 15 14 14 13 12 11 10 10 8 8 7
MIX HGT (KFT)...2.7 0.8 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W W W W W W NW N N N N N
TRANSP WIND SPD.20 13 12 12 13 13 12 12 9 9 8 8
DISPR KT-FT/1K..46 9 5 5 5 5 5 5 4 4 3 3
TUESDAY
SKY/WEATHER.........SUNNY.
CWR.................1 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 59.
MIN HUMIDITY........45 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 8 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......3300 FT AGL.
TRANSPORT WINDS.....NORTHEAST 6 TO 8 MPH SHIFTING TO THE SOUTHEAST
6 TO 10 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR (2400 KNOT-FT)IN THE MORNING FAIR
(20000 KNOT-FT).
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........36 27 33 19 4 0 6 12 8 5 1 2
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............33 32 33 34 39 44 48 51 55 57 58 58
RH..............93 91 89 91 79 68 60 54 49 45 45 45
20 FT WIND DIR..N N NE E E E SE SE SE SE SE SE
20 FT WIND SPD..3 2 2 2 3 4 5 6 7 8 8 8
20 FT WIND GUST.6 5 6 6 7 8 10 12 13 14 14 14
MIX HGT (KFT)...0.6 0.4 0.4 0.6 1.2 1.5 1.9 2.3 2.6 2.9 3.3 2.3
TRANSP WIND DIR.NE NE NE E SE SE SE S S S S S
TRANSP WIND SPD.8 7 7 6 6 6 6 7 8 9 10 10
DISPR KT-FT/1K..4 3 2 3 6 8 10 14 18 23 29 21
FORECASTER...JOHNSON
REQUESTED BY...MICHAEL MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 2523033.0/BIS
.DELDT 10/06/25
.FORMATTERVERSION 2.0.0
.EMAIL MICHAEL_A_MILLER@FWS.GOV
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