335  
FNUS75 KBOU 272057  
FWSBOU  
 
SPOT FORECAST FOR HIGHTOP...USFS  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
157 PM MST TUE JAN 27 2026  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
AN UPPER LEVEL RIDGE WILL PASS ACROSS THE REGION  
TONIGHT AND WEDNESDAY. TEMPERATURES WILL BE RELATIVELY MILD ON  
WEDNESDAY, HOWEVER SMOKE DISPERSAL IS EXPECTED TO BE POOR DUE TO  
LIGHT WINDS AND AN INCREASE OF CLOUDS. IT WOULD BE A STRETCH TO  
GET JUST AN HOUR OR TWO OF FAIR DISPERSION GIVEN THE LIGHT WINDS.  
 
BETTER (GOOD TO VERY GOOD) SMOKE DISPERSION IS EXPECTED THURSDAY.  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT) UNTIL 0700, THEN  
PARTLY CLOUDY (35-45 PERCENT) UNTIL 1500, THEN  
MOSTLY CLOUDY (55-65 PERCENT).  
CWR.................8 PERCENT.  
CHANCE OF PCPN......10 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 30.  
MIN HUMIDITY........30 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 6 TO 11 MPH.  
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1300, THEN 1600 FT AGL  
UNTIL 1600, THEN BELOW 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 9 TO 14 MPH UNTIL 1000. WEST 13 TO 18  
MPH AFTER 1200.  
SMOKE DISPERSAL.....POOR.  
 
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........52 47 42 37 33 29 34 38 43 51 64 64  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 10  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 10 10  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............-1 0 2 7 13 20 24 28 29 30 29 26  
RH..............79 79 72 60 48 37 33 30 32 31 34 40  
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW W W W  
20 FT WIND SPD..8 8 8 8 8 8 7 8 8 8 9 9  
20 FT WIND GUST.14 14 14 14 14 15 14 15 15 16 17 18  
MIX HGT (KFT)...0.1 0.1 0.1 0.1 0.1 0.6 0.9 1.3 1.6 1.5 0.8 0.2  
TRANSP WIND DIR.W SW SW SW S SW W W W W W W  
TRANSP WIND SPD.12 12 10 10 10 12 13 15 16 17 16 14  
VRATE KT-FT/1K..0 0 0 0 1 6 10 17 22 22 12 3  
SMOKEDISPERSION.P P P P P P P P P P P P  
   
FORECAST DAYS 3 THROUGH 5
 
   
THURSDAY
 
 
MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 11. HIGHS IN THE  
LOWER 20S. WEST WINDS AROUND 11 MPH.    
FRIDAY
 
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 8. HIGHS IN THE  
MID 20S. WEST WINDS AROUND 7 MPH.    
SATURDAY
 
 
MOSTLY CLOUDY. LOWS AROUND 10. HIGHS IN THE LOWER 30S. SOUTHWEST  
WINDS AROUND 8 MPH.  
 

 
FORECASTER...BARJENBRUCH  
REQUESTED BY...JOHN AUTHER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2601156.0/BOU  
.DELDT 01/27/26  
.FORMATTERVERSION 2.0.0  
.EMAIL JOHN.AUTHER@USDA.GOV  
 
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