978
FNUS75 KCYS 110317
FWSCYS
SPOT FORECAST FOR COUNTY RD 20 AND W...REGION 22 EM
NATIONAL WEATHER SERVICE CHEYENNE WY
917 PM MDT WED JUN 10 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT FRIDAY
DISCUSSION
A COLD FRONT WILL SLIDE ACROSS THE SITE BEFORE MIDNIGHT, RESULTING IN A WIND SHIFT FROM WESTERLY
TO MORE NORTHWESTERLY, WITH SUSTAINED WINDS RANGING FROM 10-15 MPH AND GUSTS OF 20-25 MPH.
FAIR HUMIDITY RECOVERIES ARE EXPECTED OVERNIGHT RANGING FROM 50-55%, WITH DRY CONDITIONS AND
NO PRECIPITATION EXPECTED. RELATIVE HUMIDITY VALUES DURING THE DAY TOMORROW ARE EXPECTED TO RANGE
FROM 20-25%, WITH WINDS SHIFTING TO MORE NORTH-NORTHWESTERLY BY THE EVENING. WINDS TOMORROW AFTERNOON
WILL RANGE FROM 20-25 MPH, WITH GUSTS AS HIGH AS 35-40 MPH. THESE SHOULD WEAKEN INTO THE EVENING HOURS
DOWN TO 10-15 MPH WITH MAXIMUM GUSTS OF 20-25 MPH.
REST OF TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
CWR.................1 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........50 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 13 MPH.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 20 TO 23 MPH.
SMOKE DISPERSAL.....POOR (10900 KNOT-FT).
HAINES INDEX........MISSING.
TIME (MDT) 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........33 31 30 26 27 26 19 19
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0
TEMP............69 68 64 61 58 55 53 52
RH..............24 24 28 33 39 45 46 48
20 FT WIND DIR..NW NW NW NW NW NW NW W
20 FT WIND SPD..12 10 10 10 12 12 13 13
20 FT WIND GUST.22 20 18 18 21 22 23 24
MIX HGT (KFT)...0.6 0.8 0.7 0.8 0.7 1.3 0.9 0.7
TRANSP WIND DIR.NW NW NW N NW NW NW NW
TRANSP WIND SPD.20 20 20 20 22 20 23 22
HAINES INDEX....M M M M M M M M
SDSPL KT-FT/100011 14 11 13 12 22 17 14
THURSDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 76.
MIN HUMIDITY........17 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 14 TO 22 MPH. GUSTS UP TO 41
MPH EARLY IN THE MORNING.
MIXING HEIGHT.......8900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 21 TO 30 MPH INCREASING TO 24 TO 33
MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR (21200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO VERY GOOD (106200 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (152300
KNOT-FT) IN THE LATE MORNING AND AFTERNOON.
HAINES INDEX........MISSING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........6 6 3 1 3 4 6 5 9 7 7 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............51 53 56 60 63 65 69 71 73 74 76 76
RH..............50 46 42 33 31 29 24 23 21 20 18 18
20 FT WIND DIR..W W NW NW NW NW NW NW NW NW N N
20 FT WIND SPD..14 16 18 21 22 22 22 21 20 17 16 14
20 FT WIND GUST.26 31 36 39 40 41 40 39 36 33 30 26
MIX HGT (KFT)...1.2 2.5 4.1 5.3 6.0 6.7 7.4 7.9 8.3 8.7 8.9 8.6
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.21 25 30 33 33 33 32 30 29 28 25 24
HAINES INDEX....M M M M M M M M M M M M
SDSPL KT-FT/100021 54 106 152 174 195 207 205 208 208 195 180
FORECASTER...FULLER/BRAUER
REQUESTED BY...ROB CROWDER
TYPE OF REQUEST...WILDFIRE
.TAG 2615342.0/CYS
.DELDT 06/10/26
.FORMATTERVERSION 2.0.0
.EMAIL ROBERT.CROWDER@SCOTTSBLUFFCOUNTYNE.GOV
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