778
FNUS75 KCYS 270129
FWSCYS
SPOT FORECAST FOR RATTLESNAKE DRAW FIRE...CASPER DISPATCH
NATIONAL WEATHER SERVICE CHEYENNE WY
729 PM MDT FRI JUN 26 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
LITTLE TO NO PRECIPITATION IS EXPECTED TONIGHT THROUGH SATURDAY NIGHT, WITH SOUTHERLY
WINDS OF 10-15 MPH GUSTING TO 25-30 MPH. WINDS WILL SHIFT TO MORE WSW BY MIDNIGHT AND INCREASING
INCREASING TO 20-25 MPH WITH GUSTS RANGING FROM 35-35 MPH BY SUNRISE. RECOVERIES ARE EXPECTED TO BE
FAIR RANGING FROM 50-60%.
INTO SATURDAY, EXPECT RH TO 15-20% BY THE AFTERNOON, WITH FAIR RECOVERIES
OF 55-60% OVERNIGHT. 25-30 MPH WSW WINDS WILL CONTINUE TO BE GUSTY DURING THE DAY, WITH HIGHER GUSTS
OF 35-45 MPH. THESE WINDS WILL RELAX INTO THE EVENING AND OVERNIGHT HOURS AND WILL BECOME LIGHT AND
VARIABLE SHORTLY BEFORE MIDNIGHT.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT).
CWR.................2 PERCENT.
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........51 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 14 MPH.
HAINES INDEX........MISSING.
TIME (MDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........62 36 41 15 12 11 11 12 10 34 67
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
TEMP............72 69 65 63 62 61 61 59 58 57 57
RH..............38 42 48 48 50 51 50 51 49 49 47
20 FT WIND DIR..S S S S S SW SW SW SW SW SW
20 FT WIND SPD..12 12 12 10 10 10 12 12 13 14 14
20 FT WIND GUST.22 21 21 20 20 20 21 23 24 25 25
HAINES INDEX....M M M M M M M M M M M
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT) THEN BECOMING
SUNNY (15-25 PERCENT).
CWR.................1 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........18 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 14 TO 21 MPH. GUSTS UP TO 33
MPH INCREASING TO 39 MPH IN THE LATE MORNING
AND AFTERNOON.
HAINES INDEX........MISSING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........79 57 31 20 20 9 9 13 19 27 32 32
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............56 59 61 64 69 72 74 75 76 76 76 77
RH..............47 44 44 40 30 24 21 21 19 19 19 18
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..14 16 17 20 21 21 21 21 21 21 21 21
20 FT WIND GUST.26 30 33 36 38 38 39 39 39 39 39 38
HAINES INDEX....M M M M M M M M M M M M
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........54 PERCENT.
WIND (20 FT)........WEST WINDS 12 TO 20 MPH WITH GUSTS TO AROUND 37
MPH DECREASING TO 7 TO 8 MPH LATE IN THE
EVENING.
HAINES INDEX........MISSING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........34 35 32 13 11 10 10 7 9 5 8 8
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............76 74 72 65 62 59 57 57 55 52 52 51
RH..............19 21 24 31 35 40 43 43 47 52 52 52
20 FT WIND DIR..SW W W W W W SW W W W W W
20 FT WIND SPD..20 17 16 13 12 8 7 7 7 7 7 7
20 FT WIND GUST.37 33 29 24 21 16 14 13 13 14 13 13
HAINES INDEX....M M M M M M M M M M M M
SUNDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CWR.................1 PERCENT.
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 16 MPH.
HAINES INDEX........MISSING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........17 7 5 2 3 5 6 16 26 36 41 47
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............50 52 55 58 62 66 70 72 74 74 75 74
RH..............54 52 47 42 36 30 26 25 22 22 21 23
20 FT WIND DIR..W W SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..7 8 9 12 13 14 16 16 16 16 16 15
20 FT WIND GUST.14 15 18 21 24 26 29 30 31 30 29 26
HAINES INDEX....M M M M M M M M M M M M
FORECASTER...BRAUER
REQUESTED BY...IC TRAINEE
TYPE OF REQUEST...WILDFIRE
.TAG 2616283.0/CYS
.DELDT 06/26/26
.FORMATTERVERSION 2.0.0
.EMAIL WYCPC@FIRENET.GOV
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