070  
FNUS75 KCYS 171116  
FWSCYS  
 
SPOT FORECAST FOR SUGARLOAF...USFS  
NATIONAL WEATHER SERVICE CHEYENNE WY  
516 AM MDT WED AUG 17 2022  
 
IF CONDITIONS BECOME UN-REPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (307) 772-2227, IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
QUIET AND DRY CONDITIONS EXPECTED ACROSS THE FIRE  
AREA TODAY AND TOMORROW. AFTER A FEW DAYS OF GOOD NIGHTTIME  
RECOVERIES AND DAYTIME HUMIDITY VALUES ABOVE 25 PERCENT,  
CONDITIONS WILL TREND DRIER WITH MINIMUM HUMIDITY VALUES DROPPING  
TO AROUND 20 PERCENT TODAY. WINDS WILL BE THE LIMITING FACTOR  
REGARDING FIRE WEATHER CONCERNS ACROSS THE FIRE AREA. WINDS WILL  
BE LIGHT TODAY, BUT SOME GUSTS APPROACHING 20 MPH MAY BE POSSIBLE  
TOMORROW AFTERNOON.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
CWR.................1 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 73.  
MIN HUMIDITY........22 PERCENT.  
WIND (20 FT)........WEST WINDS 6 TO 7 MPH, SHIFTING TO THE SOUTHEAST  
9 TO 10 MPH WITH GUSTS TO AROUND 13 MPH LATE IN  
THE MORNING,THEN SHIFTING TO THE EAST WITH GUSTS  
TO AROUND 14 MPH EARLY IN THE AFTERNOON.  
MIXING HEIGHT.......4600 FT AGL INCREASING TO 10300 FT AGL IN THE  
AFTERNOON.  
TRANSPORT WINDS.....WEST 5 TO 6 MPH SHIFTING TO THE NORTHEAST 6 TO  
10 MPH EARLY IN THE MORNING.  
SMOKE DISPERSAL.....FAIR (13400 KNOT-FT) INCREASING TO EXCELLENT  
(85500 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 TO 3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........8 6 4 5 2 2 2 15 19 29 35 35  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............54 54 57 60 63 66 68 70 72 72 73 72  
RH..............66 69 64 55 46 36 31 27 24 24 22 24  
20 FT WIND DIR..W W W W SW S SE SE E E E E  
20 FT WIND SPD..6 6 7 7 6 9 10 9 9 10 10 9  
20 FT WIND GUST.8 7 10 10 8 11 13 12 13 14 13 13  
MIX HGT (KFT)...4.6 4.6 4.6 4.6 4.6 4.6 10 10 10 10 10 10  
TRANSP WIND DIR.SW W N NE NE NE NE NE N N N N  
TRANSP WIND SPD.5 6 6 7 7 7 8 9 10 10 10 10  
HAINES INDEX....2 2 2 2 2 2 3 3 3 3 3 3  
SDSPL KT-FT/100013 13 13 13 13 13 86 86 86 86 86 86  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CWR.................1 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 56.  
MAX HUMIDITY........51 PERCENT.  
WIND (20 FT)........EAST WINDS 6 TO 10 MPH WITH GUSTS TO AROUND 13  
MPH SHIFTING TO THE SOUTH AROUND 6 MPH AFTER  
MIDNIGHT.  
MIXING HEIGHT.......3400 FT AGL DECREASING TO 600 FT AGL AFTER  
MIDNIGHT.  
TRANSPORT WINDS.....NORTHEAST 8 TO 9 MPH SHIFTING TO THE NORTHWEST  
AROUND 10 MPH EARLY IN THE MORNING.  
SMOKE DISPERSAL.....POOR (3000 KNOT-FT).  
HAINES INDEX........3 VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........33 38 50 34 36 17 15 16 13 18 17 24  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............70 69 65 62 61 60 59 59 58 57 57 57  
RH..............25 28 35 39 41 42 42 44 45 47 47 45  
20 FT WIND DIR..E E E SE E E S W W W NW NW  
20 FT WIND SPD..10 9 7 6 6 6 6 6 6 6 6 9  
20 FT WIND GUST.13 12 10 8 7 7 7 7 7 7 8 11  
MIX HGT (KFT)...3.4 3.4 3.4 3.4 3.4 3.4 0.6 0.6 0.6 0.6 0.6 0.6  
TRANSP WIND DIR.NE NE E SE SE S S SW W W NW NW  
TRANSP WIND SPD.9 8 6 5 6 7 8 8 8 7 8 10  
HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3  
SDSPL KT-FT/100011 11 11 11 11 11 3 3 3 3 3 3  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 70.  
MIN HUMIDITY........29 PERCENT.  
WIND (20 FT)........NORTH WINDS 9 TO 14 MPH INCREASING TO AROUND 13  
MPH LATE IN THE AFTERNOON. GUSTS UP TO 21 MPH.  
MIXING HEIGHT.......6400 FT AGL INCREASING TO 9900 FT AGL IN THE  
AFTERNOON.  
TRANSPORT WINDS.....NORTH 12 TO 15 MPH.  
SMOKE DISPERSAL.....EXCELLENT (76900 KNOT-FT).  
HAINES INDEX........3 VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........22 18 10 5 4 5 5 10 14 19 17 14  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............57 57 60 61 63 65 67 68 69 70 69 69  
RH..............47 51 47 46 43 38 33 31 30 29 29 30  
20 FT WIND DIR..NW N N N N N N N N N N N  
20 FT WIND SPD..9 10 13 14 13 13 13 13 12 12 12 13  
20 FT WIND GUST.12 13 16 17 16 16 16 16 16 16 16 16  
MIX HGT (KFT)...6.4 6.4 6.4 6.4 6.4 6.4 9.9 9.9 9.9 9.9 9.9 9.9  
TRANSP WIND DIR.N N N N N N N N N N N N  
TRANSP WIND SPD.12 13 14 15 15 15 15 14 14 13 13 13  
HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3  
SDSPL KT-FT/100077 77 77 77 77 77 115 115 115 115 115 115  
 

 
FORECASTER...WOODWARD  
REQUESTED BY...CHRIS GREEN  
TYPE OF REQUEST...WILDFIRE  
.TAG 2216323.11/CYS  
.DELDT 08/16/22  
.EMAIL CHRISTOPHER.E.GREEN@USDA.GOV  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WY Page
The Nexlab NE Page Main Text Page