201
FNUS75 KCYS 291220
FWSCYS
SPOT FORECAST FOR SANDSTONE NORTH GNA 1-29...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
520 AM MST THU JAN 29 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
AN UPPER LEVEL DISTURBANCE WILL PUSH OVER THE REGION TODAY RESULTING
IN SOME PERIODS OF SNOW TODAY INTO TONIGHT. OTHERWISE, MOSTLY CLOUDY
SKIES ARE EXPECTED WITH RELATIVELY LIGHT WINDS INTO FRIDAY.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF SNOW
EARLY IN THE MORNING, THEN SLIGHT CHANCE OF
SNOW UNTIL NOON.
CWR.................5 PERCENT.
MAX TEMPERATURE.....28 TO 33 DEGREES.
MIN HUMIDITY........55 TO 65 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH.
MIXING HEIGHT.......2900 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 17 MPH.
SMOKE DISPERSAL.....FAIR (42900 KNOT-FT.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........87 87 88 88 88 79 79 79 68 68 68 58
WEATHER COV.....CHC CHC SCH SCH SCH
WEATHER TYPE....SN SN SN SN SN
TSTM COV........
CWR.............10 10 10 10 10 0 0 0 0 0 0 0
TEMP............16 16 16 17 19 21 22 23 23 25 24 23
RH..............88 88 88 88 80 74 74 71 71 62 62 65
20 FT WIND DIR..W W W W W W W W W W SW SW
20 FT WIND SPD..7 7 7 7 7 7 7 7 7 7 7 7
20 FT WIND GUST.15 15 15 15 15 15 15 15 14 14 13 13
MIX HGT (KFT)...0.6 0.6 1.0 1.6 1.8 2.0 2.3 2.6 2.8 2.9 2.7 0.9
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.10 10 10 13 12 12 13 15 17 17 17 12
SDSPL KT-FT/10005 5 9 18 18 20 25 33 42 43 40 9
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
SNOW IN THE EVENING.
CWR.................2 PERCENT.
MIN TEMPERATURE.....AROUND 15 DEGREES.
MAX HUMIDITY........85 TO 95 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 9 MPH BECOMING LIGHT AND
VARIABLE.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 12 MPH.
SMOKE DISPERSAL.....POOR (3700 KNOT-FT).
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........58 58 57 57 57 71 71 71 79 79 79 78
WEATHER COV..... SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE.... SN SN SN SN SN SN SN
TSTM COV........
CWR.............0 0 0 0 0 10 10 10 10 10 10 10
TEMP............21 19 18 18 17 17 18 17 17 17 17 16
RH..............68 74 77 77 80 80 77 84 84 84 88 92
20 FT WIND DIR..SW SW W W W W W W W SW SW SW
20 FT WIND SPD..7 7 7 7 7 7 7 7 7 6 6 2
20 FT WIND GUST.13 13 13 13 13 13 13 12 12 12 12 12
MIX HGT (KFT)...0.7 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.6
TRANSP WIND DIR.W W W W W W W SW SW W SW SW
TRANSP WIND SPD.12 12 12 9 9 9 8 8 9 8 9 9
SDSPL KT-FT/10007 5 5 4 4 4 4 4 4 4 4 5
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT) THEN BECOMING
MOSTLY SUNNY (40-55 PERCENT). SLIGHT CHANCE OF
SNOW, THEN SLIGHT CHANCE OF SNOW SHOWERS LATE
IN THE AFTERNOON.
CWR.................2 PERCENT.
MAX TEMPERATURE.....26 TO 32 DEGREES.
MIN HUMIDITY........60 TO 75 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE WINDS BECOMING SOUTHWEST
5 TO 10 MPH.
MIXING HEIGHT.......2200 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 12 MPH.
SMOKE DISPERSAL.....POOR (4800 KNOT-FT).
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........78 78 89 89 89 85 85 85 77 77 77 49
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SW
TSTM COV........
CWR.............10 10 10 10 10 0 0 0 0 0 0 0
TEMP............16 17 17 19 23 25 26 27 28 27 26 25
RH..............88 84 92 88 77 71 71 71 68 71 74 74
20 FT WIND DIR..S S SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..2 2 3 3 5 5 5 6 6 6 5 5
20 FT WIND GUST.12 12 13 13 14 14 14 15 14 13 10 8
MIX HGT (KFT)...0.6 0.6 0.8 1.2 1.5 1.8 2.1 2.2 2.2 1.8 1.2 0.8
TRANSP WIND DIR.SW SW SW SW W W W W W W W W
TRANSP WIND SPD.9 9 9 8 9 12 12 12 10 9 8 8
SDSPL KT-FT/10005 5 7 8 12 18 21 22 19 14 9 5
REQUESTED BY...PARKER JOHNSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2601284.0/CYS
.DELDT 01/29/26
.FORMATTERVERSION 2.0.0
.EMAIL PARKER.JOHNSON@USDA.GOV
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