741  
FNUS75 KCYS 160138  
FWSCYS  
 
SPOT FORECAST FOR SPOT FIRES...PRAIRIE CENTER FIRE  
NATIONAL WEATHER SERVICE CHEYENNE WY  
738 PM MDT TUE SEP 15 2026  
 
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE AT (307) 772-2227  
   
DISCUSSION
 
 
A LOW LEVEL JET WILL IMPART SOUTH-SOUTHEAST WINDS OVERNIGHT. PEAK  
WIND GUSTS TO 30 MPH POSSIBLE, PEAKING SHORTLY BEFORE MIDNIGHT.  
SHOWER ACTIVITY FROM STORMS TO THE SOUTHWEST OVER COLORADO MAY  
PERSIST OVERNIGHT TO PASS OVER THE SITE. NO WETTING RAINFALL  
IS ANTICIPATED FROM THESE SHOWERS, BUT COULD IMPROVE OVERNIGHT  
HUMIDITY RECOVERIES. FORECASTED RECOVERIES ARE GOOD AT AROUND  
90%. TOMORROW WINDS SHIFT OUT OF THE SOUTHWEST TO WEST IN THE LATE  
MORNING AND EARLY AFTERNOON HOURS. A FEW SHOWERS MAY BE POSSIBLE  
IN THE AFTERNOON BUT CONFIDENCE IN WETTING RAINFALL IS LOW.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (55-65 PERCENT).  
CWR.................4 PERCENT.  
MIN TEMPERATURE.....AROUND 49.  
MAX HUMIDITY........89 PERCENT.  
WIND (20 FT)........SOUTH WINDS 13 TO 16 MPH.  
MIXING HEIGHT.......700 FT AGL.  
TRANSPORT WINDS.....SOUTH 20 TO 25 MPH.  
SMOKE DISPERSAL.....POOR (11600 KNOT-FT).  
 
TIME (MDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........21 30 53 56 62 62 61 66 65 58  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0  
TEMP............60 59 58 56 55 54 53 52 51 50  
RH..............51 53 55 57 59 61 64 69 74 83  
20 FT WIND DIR..SE S S S S S S S S S  
20 FT WIND SPD..15 16 16 16 16 16 16 15 14 13  
20 FT WIND GUST.29 30 30 31 31 30 29 28 25 23  
MIX HGT (KFT)...0.7 0.9 0.8 0.7 0.7 0.9 1.3 1.2 1.2 0.7  
TRANSP WIND DIR.SE SE S S S S S S S S  
TRANSP WIND SPD.21 22 23 24 25 25 25 23 21 20  
SDSPL KT-FT/100013 17 16 15 17 19 28 23 21 12  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).  
CWR.................3 PERCENT.  
MAX TEMPERATURE.....AROUND 83.  
MIN HUMIDITY........25 PERCENT.  
WIND (20 FT)........SOUTH WINDS 6 TO 12 MPH IN THE MORNING AND  
EARLY AFTERNOON BECOMING LIGHT.  
MIXING HEIGHT.......7700 FT AGL.  
TRANSPORT WINDS.....SOUTH 10 TO 18 MPH SHIFTING TO THE WEST 8 TO 12  
MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (8000 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (77300 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........58 58 45 26 27 18 11 16 28 41 31 38  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............49 50 54 59 65 70 75 78 81 83 83 81  
RH..............89 86 77 64 52 44 37 34 28 25 25 27  
20 FT WIND DIR..S S S S S S S S S S S SE  
20 FT WIND SPD..12 12 10 9 8 8 7 7 6 3 2 2  
20 FT WIND GUST.22 21 18 17 16 15 14 12 9 8 6 5  
MIX HGT (KFT)...0.6 0.6 0.8 1.1 1.3 1.7 2.6 3.9 5.2 6.9 7.7 6.8  
TRANSP WIND DIR.S S S S S SW SW SW W W W W  
TRANSP WIND SPD.18 16 17 15 15 13 12 10 10 12 12 8  
SDSPL KT-FT/10009 8 11 14 17 19 26 36 47 69 77 48  
   
WEDNESDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN  
SHOWERS OVERNIGHT. SLIGHT CHANCE OF  
THUNDERSTORMS AFTER 3 AM.  
CWR.................10 PERCENT.  
MIN TEMPERATURE.....AROUND 54.  
MAX HUMIDITY........90 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING EAST 6 TO 9 MPH IN THE  
LATE EVENING AND OVERNIGHT. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS AFTER 3 AM.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....SOUTH 7 TO 10 MPH SHIFTING TO THE NORTHEAST 12  
TO 15 MPH IN THE LATE EVENING AND OVERNIGHT.  
SMOKE DISPERSAL.....POOR (4900 KNOT-FT).  
 
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........49 69 74 81 84 78 76 74 78 82 78 83  
WEATHER COV..... CHC CHC CHC CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW RW RW  
TSTM COV........ SCH SCH SCH  
CWR.............0 0 0 0 0 0 10 10 10 10 10 10  
TEMP............79 74 69 67 65 63 61 60 59 57 56 55  
RH..............30 37 42 47 50 52 53 58 60 67 72 77  
20 FT WIND DIR..SE SE SE E E E E E E E E E  
20 FT WIND SPD..2 2 3 6 7 8 9 9 8 8 7 7  
20 FT WIND GUST.5 6 8 10 13 15 16 16 16 15 14 13  
MIX HGT (KFT)...2.8 0.9 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5  
TRANSP WIND DIR.S SW S E NE E E NE E E NE NE  
TRANSP WIND SPD.8 7 10 12 13 14 14 15 14 12 12 13  
SDSPL KT-FT/100020 5 6 5 6 6 7 7 6 5 5 6  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). RAIN SHOWERS IN  
THE MORNING, THEN RAIN SHOWERS LIKELY AND  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
CWR.................58 PERCENT.  
MAX TEMPERATURE.....AROUND 70.  
MIN HUMIDITY........66 PERCENT.  
WIND (20 FT)........EAST WINDS 6 TO 7 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.......2100 FT AGL.  
TRANSPORT WINDS.....EAST 9 TO 15 MPH.  
SMOKE DISPERSAL.....POOR (5400 KNOT-FT).  
 
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........83 93 94 88 85 85 87 88 88 87 83 79  
WEATHER COV.....DEF DEF DEF DEF DEF DEF 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.............50 50 50 50 50 50 60 60 60 60 60 60  
TEMP............54 54 56 60 62 64 66 67 69 70 70 69  
RH..............80 90 86 78 75 73 70 70 68 66 66 68  
20 FT WIND DIR..E E E E E E E E E E E NE  
20 FT WIND SPD..7 7 7 7 7 7 7 7 7 7 6 6  
20 FT WIND GUST.12 12 13 13 14 14 14 14 13 12 10 9  
MIX HGT (KFT)...0.5 0.6 1.0 1.5 1.8 2.0 2.1 2.1 2.0 1.9 1.8 1.7  
TRANSP WIND DIR.E NE E E E E E E E E E NE  
TRANSP WIND SPD.13 13 14 15 15 14 13 12 12 10 9 9  
SDSPL KT-FT/10005 7 12 20 24 25 23 21 20 17 14 13  
 

 
FORECASTER...VASQUEZ  
REQUESTED BY...HAYDEN SMITH  
TYPE OF REQUEST...WILDFIRE  
.TAG 2621969.0/CYS  
.DELDT 09/15/26  
.FORMATTERVERSION 2.0.0  
.EMAIL GOSHENCOUNTYFIRE@GMAIL.COM  
 
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