815
FNUS75 KCYS 261230
FWSCYS
SPOT FORECAST FOR POLE MTN RX...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
630 AM MDT MON OCT 26 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
SHOWERS WILL COME TO END BY 10-11 AM, WITH RH VALUES RANGING FROM
80%-90% AND WEST WINDS RANGING FROM 5-15 MPH, WITH PEAK GUSTS OF
20 MPH. MINIMUM DAYTIME RH VALUES WILL RANGE FROM 50-60%, WITH
LITTLE TO NO PRECIPITATION EXPECTED DURING THE AFTERNOON HOURS.
HEADING INTO THIS EVENING AND OVERNIGHT, WINDS OF 15-25 MPH WILL
SHIFT MORE OUT OF THE SOUTHWEST, WITH PEAK GUSTS OF 35-45 MPH,
WITH A GENERAL DECREASE IN RH OVERNIGHT DOWN TO 60%-70%.
DRY CONDITIONS WILL PREVAIL INTO TUESDAY, WITH WSW WINDS OF 15-25
MPH AND PEAK GUSTS OF 30-40 MPH. MINIMUM RH VALUES WILL RANGE FROM
25 TO 40 PERCENT DURING THE AFTERNOON. HEADING INTO OVERNIGHT
TUESDAY INTO EARLY WEDNESDAY, SW WINDS OF 20-30 MPH WILL REMAIN IN
PLACE, WITH SOME GUSTS AS HIGH AS 40 MPH. OVERNIGHT RECOVERIES OF
60-70% ARE EXPECTED, WITH LITTLE TO NO PRECIPITATION IN THE
FORECAST.
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT) THEN BECOMING
MOSTLY SUNNY (20-30 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS AND SNOW SHOWERS EARLY IN THE
MORNING.
CWR.................6 PERCENT.
MAX TEMPERATURE.....AROUND 46.
MIN HUMIDITY........53 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 7 MPH SHIFTING TO THE SOUTHWEST
AROUND 5 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......5300 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 16 MPH INCREASING TO 16 TO 18 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (4900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (84800 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........89 77 41 18 10 29 24 23 22 20
WEATHER COV.....SCH
WEATHER TYPE....RS
TSTM COV........
CWR.............10 10 10 10 0 0 0 0 0 0
TEMP............36 37 39 41 44 45 46 46 46 45
RH..............89 85 76 67 58 55 53 53 56 60
20 FT WIND DIR..W W W W W W W W W SW
20 FT WIND SPD..6 6 6 7 7 7 7 7 6 5
20 FT WIND GUST.10 10 10 12 12 12 12 12 10 8
MIX HGT (KFT)...0.8 1.0 1.6 2.5 3.6 4.3 4.8 5.3 5.2 3.7
TRANSP WIND DIR.W W W W W W W W W W
TRANSP WIND SPD.7 8 12 15 16 16 17 18 18 16
SDSPL KT-FT/10005 7 16 32 51 60 72 85 83 51
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 36.
MAX HUMIDITY........85 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 13 MPH INCREASING TO 18 TO
23 MPH WITH GUSTS TO AROUND 44 MPH AFTER 3 AM.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 20 MPH INCREASING TO 23 TO 29
MPH AFTER 3 AM.
SMOKE DISPERSAL.....POOR (6200 KNOT-FT).
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........18 13 25 21 25 25 30 39 25 14 12 21
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............41 40 36 36 36 36 36 37 37 38 38 39
RH..............73 76 85 85 85 85 85 82 79 73 70 62
20 FT WIND DIR..SW SW S S S S S S SW SW SW W
20 FT WIND SPD..5 6 7 8 9 10 10 10 9 13 18 23
20 FT WIND GUST.8 10 12 15 17 18 18 18 17 25 36 44
MIX HGT (KFT)...0.9 0.6 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.6 0.6 0.6
TRANSP WIND DIR.W SW SW SW S SW SW SW SW SW SW W
TRANSP WIND SPD.13 13 14 15 15 16 16 17 20 20 23 29
SDSPL KT-FT/100010 6 6 7 7 7 7 8 9 9 12 15
TUESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 52.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........BREEZY. WEST WINDS 16 TO 25 MPH WITH GUSTS TO
AROUND 51 MPH SHIFTING TO THE SOUTHWEST 15 TO
17 MPH WITH GUSTS TO AROUND 35 MPH LATE IN THE
AFTERNOON.
MIXING HEIGHT.......7300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 24 TO 33 MPH DECREASING TO AROUND 22
MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (15600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO VERY GOOD (112800 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (135900
KNOT-FT) EARLY IN THE MORNING INCREASING TO
EXCELLENT (175200 KNOT-FT) IN THE AFTERNOON IN
THE AFTERNOON, THEN DECREASING TO GOOD (68900
KNOT-FT) LATE IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........29 11 13 14 12 11 9 9 9 9 8 8
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............37 39 39 42 45 47 50 51 52 52 51 50
RH..............56 54 54 48 40 35 29 28 28 31 33 36
20 FT WIND DIR..W W W W W W W SW SW SW SW W
20 FT WIND SPD..25 25 25 23 23 22 21 18 16 15 16 17
20 FT WIND GUST.49 51 48 45 44 43 41 37 32 29 30 35
MIX HGT (KFT)...0.6 0.6 0.9 1.9 3.2 3.9 4.9 6.4 7.3 6.1 6.5 3.6
TRANSP WIND DIR.W W W W W W W SW W SW SW SW
TRANSP WIND SPD.32 32 31 30 33 33 32 30 28 26 24 22
SDSPL KT-FT/100016 16 25 50 93 113 136 168 175 141 136 69
FORECASTER...BRAUER
REQUESTED BY...COYDE FICKEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2624441.1/CYS
.DELDT 10/26/26
.FORMATTERVERSION 2.0.0
.EMAIL COYDE.FICKEL@USDA.GOV
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