451
FNUS75 KCYS 171638
FWSCYS
SPOT FORECAST FOR ROB ROY...USFS-MBRTB
NATIONAL WEATHER SERVICE CHEYENNE WY
938 AM MST TUE DEC 17 2024
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
VERY WINDY WEATHER IS EXPECTED OVER THE BURN LOCATION FOR THE NEXT FEW
DAYS. WEDNESDAY WILL BE THE WINDIEST TIMEFRAME WHERE GUSTS OVER 40 MPH
ARE POSSIBLE DURING THE AFTERNOON AND THROUGH THE NIGHT. SNOWFALL WILL
HAVE COME TO AN END BY WEDNESDAY HOWEVER BLOWING SNOW WILL BE PRESENT IN
ANY OPEN AREAS. SMOKE DISPERSAL WILL BE FAIR DURING THE AFTERNOON GIVEN
DECENT TRANSPORT FLOW HOWEVER INVERSION HEIGHTS WILL STILL BE QUITE LOW
IN THE MORNING HOURS. EXCELLENT RH RECOVERY EXPECTED.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). PATCHY BLOWING
SNOW EARLY IN THE AFTERNOON.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 29.
MIN HUMIDITY........64 PERCENT.
WIND (20 FT)........BREEZY. SOUTHWEST WINDS 25 TO 30 MPH GUSTS UP TO 45 MPH.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....WEST 33 TO 41 MPH INCREASING TO AROUND 43 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (19900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (47300 KNOT-FT) BY THE
AFTERNOON.
TIME (MST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 44 44 42 40 38 40 41 44
WEATHER COV..... PTY
WEATHER TYPE.... BSN
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0
TEMP............19 22 26 27 28 29 27 26 25
RH..............77 74 66 67 67 64 67 68 74
20 FT WIND DIR..W W SW W W SW W W SW
20 FT WIND SPD..26 28 16 28 28 15 29 29 15
20 FT WIND GUST.40 41 41 41 41 44 44 45 48
MIX HGT (KFT)...0.7 0.9 1.0 1.2 1.3 1.4 1.3 1.2 1.0
TRANSP WIND DIR.W W W W W W W W W
TRANSP WIND SPD.33 33 35 37 39 40 41 43 43
SDSPL KT-FT/100020 26 32 38 44 47 47 43 38
WEDNESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). PATCHY BLOWING
SNOW EARLY IN THE EVENING.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 16.
MAX HUMIDITY........84 PERCENT.
WIND (20 FT)........WINDY. WEST WINDS AROUND 30 MPH WITH GUSTS TO
AROUND 45 MPH.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....WEST 36 TO 41 MPH.
SMOKE DISPERSAL.....POOR (24800 KNOT-FT).
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........40 37 33 31 29 27 25 23 21 23 24 26
WEATHER COV..... PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY
WEATHER TYPE.... BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............24 23 22 22 21 21 21 21 21 20 20 19
RH..............74 74 74 75 76 77 77 77 77 79 81 84
20 FT WIND DIR..W W SW W W SW W W W W W W
20 FT WIND SPD..31 31 17 32 32 21 31 31 23 30 30 24
20 FT WIND GUST.48 48 49 49 49 32 48 48 48 47 47 47
MIX HGT (KFT)...0.9 0.8 0.8 0.8 1.0 1.1 1.1 1.1 1.0 1.0 0.9 0.8
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.41 39 38 38 39 39 39 38 37 36 36 36
SDSPL KT-FT/100032 27 25 28 33 37 37 35 33 30 28 26
THURSDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT). PATCHY BLOWING SNOW IN
THE MORNING AND EARLY AFTERNOON.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 30.
MIN HUMIDITY........60 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 35
MPH DECREASING TO 10 TO 10 MPH LATE IN THE
AFTERNOON.
MIXING HEIGHT.......1300 FT AGL.
TRANSPORT WINDS.....WEST 28 TO 36 MPH DECREASING TO 18 TO 24 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR IN THE EARLY AFTERNOON (10000 KNOT-FT).
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........28 31 33 28 24 19 18 16 15 19 23 27
WEATHER COV.....PTY PTY PTY PTY PTY PTY PTY PTY PTY
WEATHER TYPE....BSN BSN BSN BSN BSN BSN BSN BSN BSN
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............19 20 20 22 24 26 27 28 28 26 24 21
RH..............83 78 77 74 71 68 65 63 60 63 68 74
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..23 23 22 21 20 18 17 17 16 14 12 9
20 FT WIND GUST.36 36 33 32 31 29 28 25 24 21 13 10
MIX HGT (KFT)...0.7 0.7 0.7 0.8 0.9 1.0 1.2 1.3 1.3 1.0 0.8 0.6
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.36 36 35 35 33 32 31 30 28 24 22 18
SDSPL KT-FT/100023 21 21 23 26 29 31 32 30 22 14 9
FORECASTER...CHARNICK
REQUESTED BY...MATTHEW STANLEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2428648.0/CYS
.DELDT 12/17/24
.FORMATTERVERSION 2.0.0
.EMAIL MATTHEW.STANLEY@USDA.GOV
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