014
FNUS75 KCYS 120308
FWSCYS
SPOT FORECAST FOR ROB ROY RX...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
808 PM MST THU DEC 11 2025
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
BREEZY CONDITIONS CONTINUE AT THE SITE WITH WESTERLY GUSTS IN THE
45 TO 50 MPH RANGE THROUGH SATURDAY MORNING. THEREAFTER, GUSTY
WINDS SHOULD SUBSIDE TO LESS THAN 30 MPH. CLOUDY SKIES FRIDAY
MORNING, WILL GIVE WAY TO MAINLY CLEAR SKIES BY THE AFTERNOON
HOURS. WITH THIS CLEARING, THERE ISN'T ANY PRECIPITATION CHANCES
FOR THE DURATION OF THIS FORECAST PERIOD.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................1 PERCENT.
MAX TEMPERATURE.....AROUND 37.
MIN HUMIDITY........58 PERCENT.
WIND (20 FT)........WEST WINDS 21 TO 24 MPH WITH GUSTS TO AROUND 46
MPH.
MIXING HEIGHT.......1900 FT AGL.
TRANSPORT WINDS.....WEST 28 TO 37 MPH.
SMOKE DISPERSAL.....POOR (10200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (59500 KNOT-FT) IN THE
AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........33 37 37 40 42 41 38 36 34 33 33 16
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............24 25 26 28 32 34 36 36 36 34 32 30
RH..............74 74 74 71 63 64 59 59 59 58 61 63
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..22 22 22 21 21 21 21 21 22 22 23 24
20 FT WIND GUST.44 43 43 41 40 40 40 41 43 44 45 46
MIX HGT (KFT)...0.4 0.5 0.7 0.9 1.3 1.6 1.8 1.9 1.8 1.4 1.0 0.6
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.30 29 28 29 31 35 37 37 37 36 33 31
SDSPL KT-FT/100010 13 17 24 35 48 58 60 56 45 30 17
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 23.
MAX HUMIDITY........63 PERCENT.
WIND (20 FT)........BREEZY. WEST WINDS 24 TO 25 MPH WITH GUSTS TO
AROUND 49 MPH.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....WEST 32 TO 35 MPH.
SMOKE DISPERSAL.....POOR (8100 KNOT-FT).
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........17 15 10 10 13 16 17 16 15 17 19 22
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............29 28 27 27 27 27 26 25 26 25 25 25
RH..............60 60 63 57 55 57 57 57 52 52 50 50
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..25 25 25 25 25 25 25 24 24 25 25 25
20 FT WIND GUST.47 48 49 49 49 48 48 47 47 47 48 48
MIX HGT (KFT)...0.8 0.3 0.3 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.32 32 33 35 35 33 33 35 35 35 35 33
SDSPL KT-FT/100024 8 9 13 14 12 12 12 12 12 13 14
SATURDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 36.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 24 MPH WITH GUSTS TO AROUND 47
MPH DECREASING TO 9 TO 14 MPH WITH GUSTS TO
AROUND 28 MPH IN THE AFTERNOON.
MIXING HEIGHT.......1900 FT AGL.
TRANSPORT WINDS.....WEST 25 TO 32 MPH DECREASING TO 17 TO 21 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (3900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (52500 KNOT-FT) IN THE
AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 17 13 12 13 13 14 14 14 13 12 11
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............25 25 26 28 30 33 34 34 34 32 30 28
RH..............50 50 50 48 46 45 43 43 43 47 51 60
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..24 23 21 20 17 16 15 14 13 12 12 9
20 FT WIND GUST.47 45 41 38 35 31 29 28 25 23 21 22
MIX HGT (KFT)...0.5 0.6 0.8 1.1 1.4 1.7 1.9 1.9 1.8 1.3 0.7 0.3
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.32 31 31 31 32 32 32 31 29 25 21 17
SDSPL KT-FT/100015 17 21 29 40 47 53 52 45 30 14 4
FORECASTER...ZAWISLAK
REQUESTED BY...NICHOLAS ZACZEK
TYPE OF REQUEST...PRESCRIBED
.TAG 2527534.0/CYS
.DELDT 12/12/25
.FORMATTERVERSION 2.0.0
.EMAIL NICHOLAS.ZACZEK@USDA.GOV
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