252 
FNUS75 KBOU 110213
FWSBOU

Spot Forecast for Drummers Flat...USFS
National Weather Service Denver/Boulder CO
813 PM MDT Thu Jul 10 2025

If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Current radar shows weak showers entering NW 
Larimer county and traveling southeast. There could be a few 
light showers for the next 2 hours (20% chance). Light surface 
winds up to 10 mph are coming from the NE due to an outflow 
boundary. However, winds should transition to the W/SW by 10/11 
PM and gust up to 15 mph at times. Quiet weather is expected 
overnight, with generally light winds and relative humidity
recoveries up to 50%. 

Tomorrow morning, a cold front will bring gusty N/NE winds as
early as 9 AM. Relative humidity values will range between 
mid-30s to mid-40s. Thunderstorms are expected between 12 PM and 9
PM. Best time frame is between 1-5 PM. Lightning strikes, wind 
gusts up to 50 mph, and small hail are possible. 


.REST OF TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent). 
CWR.................4 percent. 
Chance of thunder...12 percent. 
Min temperature.....Around 61. 
Max humidity........48 percent. 
Wind (20 ft)........North winds 6 to 11 mph until 2200, then west 5 
                    to 8 mph. 
Mixing height.......1200 ft AGL. 
Transport winds.....Northwest 8 to 11 mph until 2200, then 8 to 10 
                    mph. 
Smoke dispersal.....Poor. 

TIME (MDT)      8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 
Sky (%).........50  34  18  16  15  8   7   6   6   9   
Weather cov.....                                        
Weather type....                                        
Tstm cov........                                        
CWR.............0   0   0   0   0   0   0   0   0   0   
Chc of thdr (%).10  10  10  10  0   0   0   0   0   0   
Temp............74  69  68  67  66  65  64  63  64  63  
RH..............38  45  45  45  45  46  46  46  41  43  
20 FT wind dir..N   W   W   W   W   W   W   W   W   NW  
20 FT wind spd..9   8   7   7   6   6   5   5   5   5   
20 FT wind gust.15  14  12  12  10  9   8   8   8   8   
Mix hgt (kft)...2.2 1.4 1.3 1.3 1.2 1.2 1.2 1.3 1.3 1.3 
Transp wind dir.NE  W   W   W   W   W   SW  SW  SW  W  
Transp wind spd.8   9   6   7   8   8   9   9   8   8   
Vrate kt-ft/1K..15  11  7   8   9   9   10  10  9   9   
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   

.FRIDAY...

Sky/weather.........Mostly sunny (5-15 percent) until 0800, then 
                    partly cloudy (45-55 percent) until 0900, then 
                    mostly cloudy (65-75 percent). Slight chance of 
                    thunderstorms until 1200. Showers likely. 
                    Thunderstorms likely after 1200. 
CWR.................7 percent increasing to 53 percent in the 
                    afternoon. 
Chance of thunder...54 percent. 
Max temperature.....Around 84. 
Min humidity........35 percent. 
Wind (20 ft)........Variable up to 5 mph until 0800, then northeast 
                    around 6 mph until 0900, then east 5 to 13 mph 
                    until 1300, then northeast 6 to 11 mph until 
                    1500, then north 5 to 12 mph. Gusty and erratic 
                    winds expected near thunderstorms after 0900 
                    until 1200. Gusty and erratic winds expected near 
                    thunderstorms after 1200. 
Mixing height.......2600 ft AGL until 0900, then 6900 ft AGL until 
                    1300, then 8700 ft AGL until 1600, then 5200 ft 
                    AGL. 
Transport winds.....North 8 to 10 mph until 1200, then east 8 to 12 
                    mph until 1600, then west around 14 mph until 
                    1700, then north around 12 mph. 
Smoke dispersal.....Poor until 1000, then fair until 1200, then 
                    good until 1500, then fair until 1600, then 
                    good until 1700, then poor. 

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 
Sky (%).........13  11  48  57  64  71  82  82  81  81  81  80  
Weather cov.....        SCH CHC CHC LKY LKY LKY LKY LKY LKY LKY 
Weather type....        RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  
Tstm cov........            SCH SCH SCH CHC CHC CHC LKY LKY LKY 
CWR.............0   0   10  10  0   0   50  50  50  50  50  50  
Chc of thdr (%).0   0   0   10  10  10  40  40  40  50  50  50  
Temp............62  65  71  76  81  82  82  83  81  80  79  74  
RH..............46  46  43  39  35  37  38  37  38  39  42  50  
20 FT wind dir..NW  N   NE  NE  NE  NE  NE  NE  NE  N   N   N   
20 FT wind spd..2   3   6   6   7   8   9   9   8   7   7   7   
20 FT wind gust.8   8   9   9   12  13  15  15  13  12  12  12  
Mix hgt (kft)...1.3 2.6 2.7 4.6 5.7 6.6 7.5 8.8 9.0 7.3 5.3 4.0 
Transp wind dir.NW  N   N   N   NE  NE  E   E   E   E   W   N   
Transp wind spd.7   7   6   6   9   9   9   9   9   9   14  12  
Vrate kt-ft/1K..8   15  13  23  46  53  60  70  72  58  64  40  
SmokeDispersion.P   P   P   P   F   F   G   G   G   F   G   P   

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Partly cloudy. Lows around 60. Highs in the lower 90s. Variable
winds less than 10 mph. 
.MONDAY...
Partly cloudy with chance of showers and thunderstorms. Lows in
the lower 60s. Highs in the lower 90s. Variable winds less than
10 mph. 
.TUESDAY...
Partly cloudy with chance of showers and thunderstorms. Lows in
the lower 60s. Highs in the mid 80s. North winds around 5 mph. 

$$
Forecaster...Ideker
Requested by...Chris Marson
Type of request...WILDFIRE
.TAG 2517795.0/BOU
.DELDT 07/10/25
.FormatterVersion 2.0.0
.EMAIL concc@firenet.gov