863
FNUS75 KCYS 280000
FWSCYS
SPOT FORECAST FOR SANDSTONE NORTH GNA 1-28...USFS
NATIONAL WEATHER SERVICE CHEYENNE WY
500 PM MST TUE JAN 27 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
UPPER-LEVEL RIDGING WILL CONTINUE OVER THE ROCKIES THROUGH WEDNESDAY,
LEADING TO MOSTLY DRY CONDITIONS. OVERNIGHT, LOW TEMPERATURES ARE EXPECTED
TO FALL TO ABOUT 12 DEGREES WITH A HUMIDITY RECOVERY OF ABOUT 55 PERCENT.
LIGHT WINDS ARE EXPECTED. WINDS WILL INCREASE DURING THE DAY WEDNESDAY,
WITH SUSTAINED SOUTHWEST WINDS AT 10 MPH WITH GUSTS OF 15 TO 20 MPH. THE HIGH
WILL BE AROUND FREEZING WITH A MINIMUM RELATIVE HUMIDITY AROUND 35 PERCENT.
PRECIPITATION CHANCES WILL BEGIN TO CREEP INTO THE AREA LATER IN THE AFTERNOON
WITH A CHANCE OF SNOW.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 27.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 6 MPH.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....WEST AROUND 12 MPH.
SMOKE DISPERSAL.....POOR (7100 KNOT-FT).
TIME (MST) 5PM
SKY (%).........7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0
TEMP............22
RH..............45
20 FT WIND DIR..W
20 FT WIND SPD..6
20 FT WIND GUST.10
MIX HGT (KFT)...0.7
TRANSP WIND DIR.W
TRANSP WIND SPD.12
SDSPL KT-FT/10007
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 12.
MAX HUMIDITY........56 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH SHIFTING TO THE SOUTH 5
TO 7 MPH IN THE LATE EVENING AND OVERNIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 9 MPH SHIFTING TO THE SOUTH 8 TO 12
MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR (2900 KNOT-FT).
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........6 5 8 22 16 18 21 10 11 14 37 45
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............20 17 16 15 15 14 14 14 13 14 14 13
RH..............49 53 53 56 56 55 53 53 55 53 53 55
20 FT WIND DIR..W W W W S S S S S S S S
20 FT WIND SPD..5 5 5 5 5 5 6 7 7 7 7 7
20 FT WIND GUST.9 9 8 8 8 8 9 10 12 13 13 12
MIX HGT (KFT)...0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W SW SW S S S S SW SW S
TRANSP WIND SPD.9 9 7 8 8 9 9 10 10 10 12 12
SDSPL KT-FT/10004 4 3 3 3 4 4 4 4 4 5 5
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF SNOW
SHOWERS LATE IN THE AFTERNOON. SNOW SHOWERS
LIKELY LATE IN THE AFTERNOON.
CWR.................8 PERCENT INCREASING TO 14 PERCENT LATE IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 31.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 9 MPH SHIFTING TO THE WEST
7 TO 8 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......2600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 9 TO 15 MPH SHIFTING TO THE WEST 15
TO 23 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (4300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (49000 KNOT-FT) IN THE
AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........51 48 51 47 48 39 32 35 49 75 64 75
WEATHER COV..... CHC CHC CHC LKY
WEATHER TYPE.... SW SW SW SW
TSTM COV........
CWR.............0 0 0 0 0 10 10 10 10 10 10 10
TEMP............14 14 15 20 25 28 30 30 30 31 29 26
RH..............53 50 51 47 40 37 37 37 37 36 39 44
20 FT WIND DIR..S S S S S SW SW SW SW SW W W
20 FT WIND SPD..7 6 6 6 6 7 7 8 9 9 8 7
20 FT WIND GUST.12 10 10 10 10 12 14 15 17 16 15 14
MIX HGT (KFT)...0.5 0.5 0.5 0.7 1.2 1.8 2.3 2.6 2.5 2.4 1.9 1.3
TRANSP WIND DIR.S S S S SW SW SW SW W W W W
TRANSP WIND SPD.12 10 10 9 10 15 20 22 23 22 17 15
SDSPL KT-FT/10005 4 5 6 11 23 39 49 49 45 29 17
FORECASTER...FULLER
REQUESTED BY...PARKER JOHNSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2601181.0/CYS
.DELDT 01/27/26
.FORMATTERVERSION 2.0.0
.EMAIL PARKER.JOHNSON@USDA.GOV
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