005
FNUS75 KCYS 270826
FWSCYS
SPOT FORECAST FOR HORSETOOTH...BLM
NATIONAL WEATHER SERVICE CHEYENNE WY
226 AM MDT MON JUL 27 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
PLUME OF MONSOON MOISTURE WILL ENTER THE AREA TODAY
AND REMAIN OVER THE AREA THROUGH MIDWEEK. SHOWERS AND THUNDERSTORMS
WILL BECOME MORE NUMEROUS EACH DAY, MAINLY IN THE AFTERNOON THROUGH
THE LATE EVENING HOURS, BUT MAY LINGER THROUGH MOST OF THE NIGHT
AFTER TUESDAY. DAYTIME RELATIVE HUMIDITY WILL REMAIN ABOVE 25
PERCENT WITH VERY GOOD OVERNIGHT RECOVERIES EXPECTED. THUNDERSTORM
ACTIVITY WILL LIKELY CONTAIN STRONG GUSTY ERRATIC WINDS EACH DAY.
TODAY
SKY/WEATHER.........PARTLY SUNNY (55-70 PERCENT). ISOLATED SHOWERS
AND THUNDERSTORMS EARLY IN THE AFTERNOON.
SCATTERED SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON.
CWR.................5 PERCENT.
MAX TEMPERATURE.....91 TO 96 DEGREES.
MIN HUMIDITY........20 TO 30 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
SMOKE DISPERSAL.....GOOD (82000 KNOT-FT) IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........65 65 65 68 68 68 61 61 61 71 71 71
WEATHER COV..... ISO ISO ISO SCT SCT SCT
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ ISO ISO ISO SCT SCT SCT
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
TEMP............72 75 78 80 84 87 89 89 91 89 89 89
RH..............51 46 42 38 33 29 26 26 24 25 25 26
20 FT WIND DIR..S S S S S S S S S S S SE
20 FT WIND SPD..5 5 5 6 6 7 7 7 8 8 8 8
20 FT WIND GUST.8 8 9 9 10 12 13 14 15 16 15 15
TRANSP WIND DIR.SE SE S S S S S S S S S S
TRANSP WIND SPD.10 10 10 12 12 12 13 12 13 15 13 10
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/10004 5 6 17 27 44 78 75 82 62 46 43
TONIGHT
SKY/WEATHER.........BECOMING PARTLY CLOUDY (40-50 PERCENT).
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
IN THE EVENING, THEN ISOLATED SHOWERS OVERNIGHT.
CWR.................10 PERCENT.
MIN TEMPERATURE.....62 TO 67 DEGREES.
MAX HUMIDITY........65 TO 80 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH BECOMING LIGHT.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS IN THE EVENING.
TRANSPORT WINDS.....SOUTH TO SOUTHEAST 8 TO 14 MPH.
SMOKE DISPERSAL.....POOR (2600 KNOT-FT).
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........48 48 48 48 48 48 40 40 40 40 40 40
WEATHER COV.....ISO ISO ISO SCT SCT SCT ISO ISO ISO
WEATHER TYPE....RW RW RW RW RW RW RW RW RW
TSTM COV........ISO ISO ISO ISO ISO ISO
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
TEMP............86 83 81 77 75 73 72 70 71 69 67 67
RH..............30 36 39 47 52 59 61 68 66 68 73 73
20 FT WIND DIR..SE SE SE E E E E SE SE SE SE SE
20 FT WIND SPD..8 7 7 7 7 7 7 7 7 6 5 3
20 FT WIND GUST.15 15 15 15 15 14 14 13 12 10 8 7
TRANSP WIND DIR.S S SE S SE E S SE E E E SE
TRANSP WIND SPD.13 13 14 12 12 10 6 10 12 9 7 7
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/100036 24 9 5 5 5 3 7 8 4 3 3
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT) BECOMING
PARTLY CLOUDY IN THE AFTERNOON. SCATTERED SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................20 TO 25 PERCENT IN THE AFTERNOON.
MAX TEMPERATURE.....89 TO 93 DEGREES.
MIN HUMIDITY........25 TO 30 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 10 MPH IN
THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE AFTERNOON.
TRANSPORT WINDS.....VARIABLE AROUND 5 MPH, THEN SHIFTING INTO THE
EAST 10 TO 15 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (52200 KNOT-FT) IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 43 43 18 18 18 23 23 23 48 48 48
WEATHER COV..... SCT SCT SCT SCT SCT SCT
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCT SCT SCT SCT SCT SCT
CWR.............0 0 0 0 0 0 20 20 20 20 20 20
TEMP............66 69 72 75 80 84 87 89 90 90 88 88
RH..............73 66 59 54 45 40 36 33 31 30 30 29
20 FT WIND DIR..SE SE SE SE E E E E E SE SE SE
20 FT WIND SPD..3 2 2 2 2 2 5 7 8 10 10 10
20 FT WIND GUST.6 6 5 5 5 6 8 12 16 18 20 20
TRANSP WIND DIR.E SE SW SW N N NW W W S E SE
TRANSP WIND SPD.6 6 5 5 6 6 6 7 5 8 14 12
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/10002 3 5 7 18 26 36 52 42 42 41 29
REQUESTED BY...ADAM SPAULDING
TYPE OF REQUEST...WILDFIRE
.TAG 2618349.0/CYS
.DELDT 07/27/26
.FORMATTERVERSION 2.0.0
.EMAIL WYCPC@FIRENET.GOV
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