406
FNUS75 KCYS 251337
FWSCYS
SPOT FORECAST FOR FE WARREN PILE...WFS
NATIONAL WEATHER SERVICE CHEYENNE WY
737 AM MDT SAT APR 25 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
COOLER WEATHER IS EXPECTED TODAY BEHIND A COLD FRONT THAT MOVED ACROSS
THE AREA FRIDAY EVENING. HIGH TEMPERATURES WILL REACH THE LOW 50S, WHICH
IS SEASONABLY COOL FOR THIS TIME OF YEAR. MINIMUM RELATIVE HUMIDITY WILL
BE AROUND 35 PERCENT THIS AFTERNOON, AS SOUTHEAST FLOW USHERS IN SOME
MOISTURE. PRECIPITATION CHANCES ARE POSSIBLE LATER THIS AFTERNOON, MAINLY
IN THE FORM OF RAIN, BUT COULD SWITCH OVER TO SNOW LATER IN THE EVENING.
WIDESPREAD PRECIPITATION CHANCES ARE EXPECTED SUNDAY, WITH THE BEST CHANCE
FOR MODERATE TO HEAVY RAIN LIKELY DURING THE AFTERNOON. TEMPERATURES ON
SUNDAY WILL BE SIMILAR TO SATURDAY, WITH A RELATIVE HUMIDITY AROUND 50
PERCENT. WINDS WILL BE OUT OF THE SOUTH AT ABOUT 15 MPH WITH GUSTS UP TO
25 MPH.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF
SNOW SHOWERS EARLY IN THE MORNING, THEN CHANCE
OF SNOW SHOWERS EARLY IN THE AFTERNOON. CHANCE
OF RAIN SHOWERS IN THE AFTERNOON.
CWR.................5 PERCENT INCREASING TO 15 PERCENT IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 6 TO 12 MPH.
MIXING HEIGHT.......5700 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 16 MPH.
SMOKE DISPERSAL.....POOR (9900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (74100 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........58 51 46 28 20 25 33 38 53 68
WEATHER COV.....SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC
WEATHER TYPE....SW SW SW SW RS RS RS RW RW RW
TSTM COV........
CWR.............10 10 10 10 20 20 20 20 20 20
TEMP............29 32 37 41 45 48 51 52 51 50
RH..............78 68 56 50 42 38 36 34 38 41
20 FT WIND DIR..E E SE SE SE SE SE SE SE SE
20 FT WIND SPD..6 7 7 9 10 12 12 12 12 12
20 FT WIND GUST.10 12 14 16 18 20 20 21 22 22
MIX HGT (KFT)...1.7 2.2 2.5 2.7 3.1 3.6 4.3 5.1 5.7 5.0
TRANSP WIND DIR.SE S S S S S S S S S
TRANSP WIND SPD.7 10 13 14 15 15 14 14 15 16
SDSPL KT-FT/100010 20 27 32 40 47 52 62 74 70
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN
SHOWERS.
CWR.................32 PERCENT DECREASING TO 21 PERCENT OVERNIGHT.
MIN TEMPERATURE.....AROUND 32.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 12 MPH.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD (68500 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (19800 KNOT-FT) LATE IN THE
NIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........81 87 80 74 75 68 62 84 91 92 92 91
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
CWR.............30 30 30 30 30 30 20 20 20 20 20 20
TEMP............49 45 42 40 38 37 37 36 35 34 34 34
RH..............42 50 59 66 74 83 83 90 93 95 95 95
20 FT WIND DIR..SE SE SE SE SE SE SE SE S S S S
20 FT WIND SPD..12 12 12 12 12 12 12 12 12 12 12 12
20 FT WIND GUST.22 22 22 21 21 21 21 22 22 22 21 20
MIX HGT (KFT)...4.6 3.2 2.7 2.3 1.9 1.5 1.4 1.6 1.6 1.6 1.6 1.6
TRANSP WIND DIR.SE SE SE SE S S S S S S S S
TRANSP WIND SPD.17 17 17 16 15 16 16 18 17 17 20 20
SDSPL KT-FT/100069 48 41 32 25 21 20 25 24 24 27 27
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
SHOWERS IN THE MORNING, THEN RAIN SHOWERS AND
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CWR.................14 PERCENT INCREASING TO 59 PERCENT IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........55 PERCENT.
WIND (20 FT)........SOUTH WINDS 8 TO 13 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....SOUTH 18 TO 22 MPH SHIFTING TO THE WEST AROUND
15 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (18500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (74300 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........92 93 91 92 90 87 85 83 81 80 83 87
WEATHER COV.....CHC CHC CHC CHC CHC CHC DEF DEF DEF DEF DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC
CWR.............10 10 10 10 10 10 60 60 60 60 60 60
TEMP............33 33 35 37 40 43 46 48 50 52 50 49
RH..............100 99 97 88 82 73 65 61 59 55 60 65
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..10 10 10 10 12 12 13 13 13 12 10 8
20 FT WIND GUST.20 18 18 18 21 22 23 24 23 22 20 15
MIX HGT (KFT)...1.2 1.6 1.5 1.4 1.8 2.2 2.7 3.2 3.7 3.9 3.7 3.2
TRANSP WIND DIR.S S S S S S S S S SW SW W
TRANSP WIND SPD.18 18 21 21 21 21 21 22 22 22 20 15
SDSPL KT-FT/100019 25 27 26 33 40 48 61 70 74 62 41
FORECASTER...FULLER
REQUESTED BY...MERMIGKAS
TYPE OF REQUEST...PRESCRIBED
.TAG 2611648.1/CYS
.DELDT 04/25/26
.FORMATTERVERSION 2.0.0
.EMAIL ALEXANDROS_MERMIGKAS@FWS.GOV
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