760  
FNUS75 KCYS 251230  
FWSCYS  
 
SPOT FORECAST FOR BOULDER RIDGE RX...WY BLM  
NATIONAL WEATHER SERVICE CHEYENNE WY  
530 AM MST WED JAN 25 2023  
 
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE AT (307) 772-2227  
   
DISCUSSION
 
 
LIGHT SNOW SHOWERS LIKELY THROUGHOUT THE DAY TODAY WITH TOTAL  
ACCUMULATIONS 1 TO 2 INCHES POSSIBLE. WINDS MAY GUST HIGHER AROUND  
SNOW SHOWERS TODAY. WINDS INCREASING THURSDAY MORNING WITH WEST WIND GUSTS  
40 TO 50 MPH. HOWEVER, THE STRONGER WINDS ARE EXPECTED TO BE FRIDAY  
WITH WEST WIND GUSTS NEAR 60 MPH POSSIBLE. TEMPERATURES WILL BE VERY COLD  
FOR THE NEXT FEW DAYS. WIND CHILLS OVERNIGHT MAY DROP AS LOW AS -10  
AND WIND CHILLS DURING THE DAY WILL STRUGGLE TO GET ABOVE 0.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF SNOW.  
PATCHY BLOWING SNOW LATE IN THE MORNING.  
CWR.................18 PERCENT DECREASING TO 2 PERCENT LATE IN THE  
AFTERNOON.  
MAX TEMPERATURE.....16 TO 18.  
MIN HUMIDITY........61 TO 64 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 13 TO 21 MPH.  
MIXING HEIGHT.......8300 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 28 TO 37 MPH INCREASING TO 38 TO 39  
MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (44900 KNOT-FT) INCREASING TO EXCELLENT  
(247800 KNOT-FT) LATE IN THE MORNING, THEN  
DECREASING TO EXCELLENT (142900 KNOT-FT) LATE  
IN THE AFTERNOON.  
HAINES INDEX........2 TO 3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........93 98 96 76 73 83 85 80 80 74 86 81  
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC PTY  
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN BSN  
TSTM COV........  
CWR.............20 20 20 20 20 20 20 20 20 20 20 0  
TEMP............3 2 4 6 8 9 12 14 15 16 15 13  
RH..............100 100 100 96 91 91 80 73 67 64 64 67  
20 FT WIND DIR..W W W W NW NW NW NW NW NW NW NW  
20 FT WIND SPD..13 13 14 15 16 17 18 20 21 21 20 18  
20 FT WIND GUST.14 14 21 23 24 25 29 31 32 32 31 29  
MIX HGT (KFT)...1.8 1.8 1.8 1.8 1.8 8.3 8.3 8.3 8.3 8.3 8.3 4.2  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW  
TRANSP WIND SPD.28 28 28 28 29 30 32 33 36 37 38 39  
HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 2  
SDSPL KT-FT/100045 45 45 45 45 248 248 248 248 248 248 143  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). PATCHY BLOWING  
SNOW OVERNIGHT IF THERE IS NEW SNOWFALL.  
CWR.................3 PERCENT.  
MIN TEMPERATURE.....7 TO 9 ABOVE.  
MAX HUMIDITY........73 TO 76 PERCENT.  
WIND (20 FT)........WEST WINDS 17 TO 21 MPH.  
MIXING HEIGHT.......2600 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 35 TO 40 MPH.  
SMOKE DISPERSAL.....EXCELLENT (92200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........79 73 70 74 69 64 62 70 71 61 62 58  
WEATHER COV.....PTY PTY PTY PTY PTY PTY PTY PTY PTY  
WEATHER TYPE....BSN BSN BSN BSN BSN BSN BSN BSN BSN  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............12 10 11 11 10 11 11 10 10 10 10 10  
RH..............70 73 69 69 73 69 69 73 73 73 69 69  
20 FT WIND DIR..NW W W W W W W W W W W W  
20 FT WIND SPD..18 17 17 17 17 17 17 18 20 20 21 21  
20 FT WIND GUST.29 28 28 25 25 25 28 29 31 31 32 32  
MIX HGT (KFT)...4.2 4.2 4.2 4.2 4.2 3.0 3.0 3.0 3.0 3.0 3.0 2.6  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW  
TRANSP WIND SPD.39 40 40 39 39 38 36 36 35 37 38 40  
HAINES INDEX....2 2 2 2 2 2 2 2 2 2 2 2  
SDSPL KT-FT/1000143 143 143 143 143 94 94 94 94 94 94 92  
   
THURSDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE  
OF SNOW LATE IN THE AFTERNOON. BLOWING SNOW  
WILL BE A CONCERN IF NEW SNOWFALL.  
CWR.................0 TO 4 PERCENT.  
MAX TEMPERATURE.....20 TO 23.  
MIN HUMIDITY........58 TO 62 PERCENT.  
WIND (20 FT)........BREEZY. WEST WINDS 21 TO 28 MPH WITH GUSTS  
40 TO 50 MPH.  
MIXING HEIGHT.......2600 FT AGL.  
TRANSPORT WINDS.....WEST 39 TO 43 MPH.  
SMOKE DISPERSAL.....GOOD (43900 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (92200 KNOT-FT) IN THE  
AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........61 69 58 32 24 19 27 35 42 52 61 71  
WEATHER COV.....PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY PTY SCH  
WEATHER TYPE....BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN SN  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............10 10 10 11 14 17 18 19 20 20 19 19  
RH..............69 69 69 69 64 58 64 63 59 60 61 61  
20 FT WIND DIR..W W W W W W W W W W W W  
20 FT WIND SPD..21 22 22 23 24 25 26 28 28 28 28 28  
20 FT WIND GUST.32 33 33 36 37 39 40 41 41 41 41 41  
MIX HGT (KFT)...2.6 2.6 2.6 2.6 2.6 1.7 1.7 1.7 1.7 1.7 1.7 1.2  
TRANSP WIND DIR.NW NW NW NW W W W W W W W W  
TRANSP WIND SPD.41 43 43 41 40 39 39 39 40 40 40 41  
HAINES INDEX....2 2 2 2 2 2 2 2 2 2 2 2  
SDSPL KT-FT/100092 92 92 92 92 59 59 59 59 59 59 44  
   
FORECAST DAYS 3 THROUGH 5
 
   
FRIDAY
 
 
WINDY. MOSTLY CLOUDY WITH CHANCE OF SNOW. AREAS OF PATCHY BLOWING  
SNOW IN THE AFTERNOON IF NEW SNOWFALL. LOWS AROUND 16. HIGHS IN THE  
UPPER 20S. WEST WINDS 30 TO 40 MPH WITH WIND GUSTS 50 TO 60 MPH.    
SATURDAY
 
 
SNOW LIKELY. LOWS AROUND 14. HIGHS IN THE MID 20S.  
WEST WINDS AROUND 20 MPH.    
SUNDAY
 
 
SNOW LIKELY. LOWS AROUND 3. HIGHS AROUND 19. SOUTH WINDS AROUND  
12 MPH.  
 

 
FORECASTER...KUBELKA  
REQUESTED BY...ROSS DARY  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2301338.0/CYS  
.DELDT 01/25/23  
.FORMATTERVERSION 2.0.0  
.EMAIL RDARY@BLM.GOV,RDARY794@GMAIL.COM  
 
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