590
FNUS75 KCYS 092020
FWSCYS
SPOT FORECAST FOR BORDER...CO-NCC DISPATCH
NATIONAL WEATHER SERVICE CHEYENNE WY
220 PM MDT THU JUL 9 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
WINDS OUT OF THE WEST THIS AFTERNOON (10-15 MPH), WITH GUSTS
POTENTIALLY REACHING 40-50 MPH AS SHOWERS AND STORMS CREATE
ERRATIC WINDS NEARBY. THE CHANCES OF WETTING RAINS FROM THIS
ACTIVITY APPEARS VERY LOW. OVERNIGHT HUMIDITY RECOVERIES APPEAR
DECENT AT AROUND (55-70%). WINDS BECOME WEAK AND VARIABLE AFTER 9
PM.
WINDS PICK UP TOMORROW MORNING AROUND 9 AM OUT OF THE WEST. DRY
SHOWER ACTIVITY IN THE AFTERNOON MAY CREATE GUSTY AND ERRATIC
WINDS AFTER NOON THROUGH AROUND 9 PM. NO WETTING RAIN IS
ANTICIPATED FROM THESE SHOWERS. THERE ARE LOW CHANCES OF DRY
THUNDERSTORMS.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE
AFTERNOON, THEN SLIGHT CHANCE OF DRY
THUNDERSTORMS LATE IN THE AFTERNOON.
CWR.................6 PERCENT.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 12 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......10500 FT AGL.
TRANSPORT WINDS.....WEST 18 TO 22 MPH.
SMOKE DISPERSAL..... VERY GOOD (126800 KNOT-FT) EARLY IN THE
MORNING INCREASING TO EXCELLENT (198700
KNOT-FT) IN THE AFTERNOON.
TIME (MDT) 2PM 3PM 4PM 5PM
SKY (%).........35 31 41 67
WEATHER COV.....SCH
WEATHER TYPE....RW
TSTM COV........SCH SCH SCH SCH
CWR.............10 10 10 10
TEMP............71 72 71 70
RH..............24 22 22 22
20 FT WIND DIR..W W W W
20 FT WIND SPD..12 12 12 10
20 FT WIND GUST.23 23 22 20
MIX HGT (KFT)...9.0 10 11 7.5
TRANSP WIND DIR.W W W W
TRANSP WIND SPD.18 21 22 20
SDSPL KT-FT/1000144 181 199 127
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT).
CWR.................3 PERCENT.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 9 MPH EARLY IN THE EVENING
SHIFTING TO THE SOUTH AROUND 6 MPH, THEN
SHIFTING TO THE EAST AROUND 5 MPH LATE IN THE
EVENING BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 17 MPH SHIFTING TO THE EAST AROUND 9
MPH EARLY IN THE EVENING, THEN SHIFTING TO THE
SOUTHWEST AROUND 8 MPH LATE IN THE EVENING
SHIFTING TO THE NORTHEAST LATE IN THE EVENING
SHIFTING TO THE SOUTHEAST 5 TO 8 MPH.
SMOKE DISPERSAL..... VERY GOOD (106700 KNOT-FT) EARLY IN THE
EVENING DECREASING TO POOR (9100 KNOT-FT) LATE
IN THE NIGHT DECREASING TO POOR (2200 KNOT-FT)
IN THE LATE EVENING AND OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........52 42 56 66 50 41 26 34 30 21 19 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............68 65 60 54 51 49 47 46 45 44 43 42
RH..............24 29 37 48 56 58 63 65 65 65 65 67
20 FT WIND DIR..W W SW SW S E E E E E E SE
20 FT WIND SPD..9 8 7 7 6 5 3 3 3 3 3 3
20 FT WIND GUST.17 15 13 12 9 8 8 7 8 8 7 6
MIX HGT (KFT)...7.1 5.5 1.1 0.6 0.6 0.6 0.5 0.6 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W E SW NE SE E SE SE SE SE SE
TRANSP WIND SPD.17 14 9 8 8 7 8 8 7 6 5 5
SDSPL KT-FT/1000107 66 9 4 4 3 4 4 3 3 2 2
FORECASTER...VASQUEZ
REQUESTED BY...MEHAN
TYPE OF REQUEST...WILDFIRE
.TAG 2617102.0/CYS
.DELDT 07/09/26
.FORMATTERVERSION 2.0.0
.EMAIL CONCC@FIRENET.GOV
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