585
FNUS75 KCYS 190653
FWSCYS
SPOT FORECAST FOR POLE MTN PRESCIBED...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
1253 AM MDT MON OCT 19 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
NOW THAT THE COLD FRONT HAS PUSHED THROUGH THE REGION THE CAPPING
INVERSION WILL KEEP THE WINDS LIGHT IN THE OVERNIGHT AND EARLY
MORNING. WINDS WILL BE RELATIVELY LIGHT THROUGH AT LEAST WEDNESDAY
MORNING BEFORE THE TYPICAL AFTERNOON BREEZINESS REALLY KICKS IN FOR
THE POLE MTN. AREA. NO SHOWERS ARE EXPECTED TO OCCUR UNTIL THURSDAY
AFTERNOON, SO THE CHANCE FOR RAIN IS ZERO. SMOKE DISPERSAL IS GOING
TO BE POOR AT NIGHT AND EARLY MORNINGS WITH IT POTENTIALLY BEING
GOOD IN THE AFTERNOON DUE TO DIURNAL MIXING.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........27 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH EARLY IN THE
MORNING BECOMING LIGHT, THEN BECOMING SOUTH 5
TO 8 MPH IN THE AFTERNOON.
MIXING HEIGHT.......5100 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 16 MPH.
SMOKE DISPERSAL.....POOR (2400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (57900 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........51 51 51 37 37 37 5 5 5 16 16 16
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............40 42 44 46 49 52 55 56 56 57 55 52
RH..............48 43 40 38 36 33 31 29 28 27 30 36
20 FT WIND DIR..SW SW SW SW SW S S S S S S S
20 FT WIND SPD..5 5 3 3 3 2 3 5 6 7 7 8
20 FT WIND GUST.9 9 8 7 7 6 7 8 10 13 15 16
MIX HGT (KFT)...0.5 0.5 0.5 0.4 1.3 3.0 4.0 4.8 5.1 4.8 4.1 2.3
TRANSP WIND DIR.SW SW SW SW S S S S S S S S
TRANSP WIND SPD.8 8 8 7 7 8 9 10 12 14 14 16
SDSPL KT-FT/10004 4 3 2 8 21 32 44 51 58 49 32
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........SOUTH WINDS 8 TO 10 MPH SHIFTING TO THE WEST
AROUND 7 MPH OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 18 MPH SHIFTING TO THE WEST 10 TO
15 MPH OVERNIGHT.
SMOKE DISPERSAL.....POOR (4500 KNOT-FT).
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........18 18 18 24 24 24 10 10 10 14 14 14
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............50 48 47 45 45 44 44 43 43 43 42 42
RH..............41 46 47 53 53 55 55 57 60 62 67 67
20 FT WIND DIR..S S S S S S S SW SW W W W
20 FT WIND SPD..9 10 10 10 10 10 9 8 7 7 7 7
20 FT WIND GUST.18 20 20 21 20 20 18 16 14 12 12 13
MIX HGT (KFT)...0.8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.S S S S S S S W W W W W
TRANSP WIND SPD.16 16 14 18 15 17 13 15 13 12 10 12
SDSPL KT-FT/100011 7 6 8 7 8 6 7 6 5 5 5
TUESDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CWR.................4 PERCENT.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 7 MPH IN THE MORNING AND EARLY
AFTERNOON BECOMING LIGHT.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 12 MPH.
SMOKE DISPERSAL.....POOR (3700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (64900 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........9 9 9 17 17 17 24 24 24 39 39 39
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............42 44 45 47 50 53 55 56 57 58 56 54
RH..............70 65 65 60 52 46 41 38 34 33 38 47
20 FT WIND DIR..W W W W W W W W W SW SW S
20 FT WIND SPD..7 7 7 7 7 7 7 7 6 5 3 3
20 FT WIND GUST.13 14 14 14 14 14 13 12 10 9 8 7
MIX HGT (KFT)...0.5 0.5 0.5 0.5 1.5 3.1 4.4 5.3 6.5 6.3 5.0 3.7
TRANSP WIND DIR.W W W W W W W SW W W W W
TRANSP WIND SPD.12 9 9 10 10 10 12 12 12 10 10 10
SDSPL KT-FT/10005 4 4 5 14 28 44 53 65 57 45 33
FORECASTER...MCLAUGHLIN
REQUESTED BY...COYDE FICKEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2623834.2/CYS
.DELDT 10/19/26
.FORMATTERVERSION 2.0.0
.EMAIL COYDE.FICKEL@USDA.GOV
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