747
FNUS75 KCYS 241754
FWSCYS
SPOT FORECAST FOR FE WARREN PILE...WFS
NATIONAL WEATHER SERVICE CHEYENNE WY
1154 AM MDT FRI APR 24 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING
DISCUSSION
WHILE WINDS WILL RELAX THIS WEEKEND AND NOT BE QUITE AS STRONG AND
GUSTY, A PROGRESSIVE PATTERN WILL BRING TROUGHING ACROSS THE AREA
AND MOIST SOUTHERLY TO EASTERLY FLOW THAT WILL CAUSE UPSLOPE
DEVELOPMENT OF SHOWER ACTIVITY AND KEEP THE AREA MOIST. THE MOST
LIKELY TIMEFRAME FOR SHOWER ACTIVITY WILL BE SATURDAY EVENING INTO
THE NIGHTTIME HOURS, AND THEN MUCH MORE LIKELY ON SUNDAY WITH A
STRONGER PLUME OF MOISTURE AND THE PASSAGE OF A STRONGER TROUGH.
WHILE SOME ACTIVITY MAY MIX AS SNOW EARLY ON SATURDAY DUE TO COLD
MORNING TEMPERATURES, THIS SHOULD QUICKLY BECOME RAIN IF IT DOES
OCCUR AS TEMPERATURES WILL SEVERAL DEGREES ABOVE FREEZING AND
RISING. ACTIVITY ON SUNDAY MAY INCLUDE SOME THUNDER AS WELL,
THOUGH STRONG THUNDERSTORMS ARE CURRENTLY NOT ANTICIPATED.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF
RAIN/SNOW SHOWERS EARLY IN THE AFTERNOON.
CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
CWR.................7 PERCENT.
MAX TEMPERATURE.....AROUND 52.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 6 TO 7 MPH SHIFTING TO THE
SOUTHEAST 7 TO 12 MPH IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 14 MPH INCREASING TO 16 TO 17 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (6100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (90100 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........58 54 42 33 25 22 24 29 36 50 73
WEATHER COV..... CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RS RS RS RW RW RW
TSTM COV........
CWR.............0 0 0 0 0 10 10 10 10 10 10
TEMP............28 31 34 37 42 46 48 50 51 52 51
RH..............81 69 61 54 45 40 37 33 33 32 34
20 FT WIND DIR..NE NE E E SE SE SE SE SE SE SE
20 FT WIND SPD..6 6 7 7 7 8 8 9 10 12 12
20 FT WIND GUST.10 10 12 13 14 15 16 17 20 21 22
MIX HGT (KFT)...1.0 1.7 2.2 2.6 3.1 3.6 4.0 5.5 6.0 5.8 4.9
TRANSP WIND DIR.SW S S S S S S S S S S
TRANSP WIND SPD.7 9 10 9 10 13 12 14 17 17 16
SDSPL KT-FT/10006 13 20 21 28 40 40 66 90 87 68
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS.
CWR.................30 PERCENT DURING THE EVENING, DECREASING TO
10 PERCENT OVERNIGHT.
MIN TEMPERATURE.....AROUND 33.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 8 TO 12 MPH.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 15 TO 20 MPH.
SMOKE DISPERSAL.....FAIR (59500 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (24000 KNOT-FT) LATE IN THE
NIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........86 85 90 88 81 74 70 73 78 84 88 89
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 10 10 10 10 10 10
TEMP............50 46 42 39 37 36 35 34 34 34 33 33
RH..............39 51 60 70 79 85 92 96 96 96 100 100
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE S S
20 FT WIND SPD..12 12 12 12 10 10 9 9 9 9 8 8
20 FT WIND GUST.22 22 22 21 20 18 17 17 17 16 16 16
MIX HGT (KFT)...4.3 2.9 2.5 2.5 2.2 1.9 1.6 1.5 1.5 1.6 1.6 1.6
TRANSP WIND DIR.S SE SE SE SE SE SE SE S S S S
TRANSP WIND SPD.16 15 16 18 18 17 17 18 18 20 20 20
SDSPL KT-FT/100060 38 35 41 36 28 24 24 25 27 27 27
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS IN THE MORNING, THEN RAIN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
CWR.................10 PERCENT INCREASING TO 50 PERCENT IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 7 TO 10 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.......4000 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 20 MPH.
SMOKE DISPERSAL.....POOR (27100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (59400 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........90 90 90 88 86 82 78 74 72 72 77 84
WEATHER COV.....CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY LKY
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 40 40 40 40 40 40
TEMP............34 34 35 37 41 44 48 51 52 53 52 51
RH..............100 96 96 92 79 70 60 54 52 52 54 59
20 FT WIND DIR..S S S S S S S S SE SE SE SE
20 FT WIND SPD..8 9 9 9 10 10 10 10 9 8 7 7
20 FT WIND GUST.16 16 17 18 18 18 18 18 17 16 15 14
MIX HGT (KFT)...1.6 1.6 1.6 1.7 1.8 2.1 2.4 3.0 3.6 4.0 3.7 3.2
TRANSP WIND DIR.S S S S S S S S S S S SE
TRANSP WIND SPD.20 20 20 18 17 16 15 16 17 17 15 13
SDSPL KT-FT/100027 27 28 27 28 29 31 42 54 59 48 35
FORECASTER...GOATLEY
REQUESTED BY...MERMIGKAS
TYPE OF REQUEST...PRESCRIBED
.TAG 2611648.0/CYS
.DELDT 04/24/26
.FORMATTERVERSION 2.0.0
.EMAIL ALEXANDROS_MERMIGKAS@FWS.GOV
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