606
FNUS75 KBOU 032250
FWSBOU
SPOT FORECAST FOR MBRTB PILES OLD PARK...USFS
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
350 PM MST WED DEC 3 2025
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
THE CURRENT STORM WILL BE EXITING THE AREA THIS
EVENING. NORTHWESTERLY FLOW ALOFT WILL INCREASE ON THURSDAY AND
FRIDAY. SNOW IS NOT EXPECTED OVER THE BURN AREA TONIGHT OR
THURSDAY. BY THURSDAY NIGHT AND FRIDAY, INCREASING MOISTURE IN
THE NORTHWESTERLY FLOW WILL BRING SNOW BACK TO THE BURN AREA.
THERE WILL BE WIND GUSTS IN THE 20 TO 30 MPH RANGE MAINLY
THURSDAY AFTERNOON. SMOKE DISPERSAL WILL BE MOSTLY BE POOR
THROUGH THE PERIOD WITH A BRIEF WINDOW OF FAIR DISPERSAL THURSDAY
AFTERNOON.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) UNTIL 2200, THEN
PARTLY CLOUDY (35-45 PERCENT).
CWR.................3 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MIN TEMPERATURE.....AROUND 1 ABOVE.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........NORTH WINDS AROUND 7 MPH UNTIL 2100. WEST 5 TO
7 MPH AFTER 0200.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 8 TO 10 MPH UNTIL 2200, THEN NORTH 8
TO 9 MPH UNTIL 2400, THEN LIGHT UNTIL 0100,
THEN WEST AROUND 8 MPH UNTIL 0300, THEN 8 TO 9
MPH UNTIL 0500, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
TIME (MST) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........65 51 45 42 35 34 36 39 39 36
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).10 0 0 0 0 0 0 0 0 0
TEMP............12 11 9 7 7 6 5 4 3 3
RH..............93 93 94 94 90 94 94 100 98 98
20 FT WIND DIR..N NW NW W W W W W W W
20 FT WIND SPD..7 6 5 5 5 5 5 5 5 5
20 FT WIND GUST.12 10 8 7 7 7 7 7 7 8
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR.NE NE NE N NW W W W W W
TRANSP WIND SPD.7 7 6 6 5 5 5 5 7 7
VRATE KT-FT/1K..1 1 1 1 1 1 1 1 1 1
SMOKEDISPERSION.P P P P P P P P P P
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) UNTIL 1200, THEN
MOSTLY SUNNY (20-30 PERCENT) UNTIL 1300, THEN
PARTLY CLOUDY (25-35 PERCENT).
CWR.................4 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 24.
MIN HUMIDITY........54 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 12 MPH. GUSTS UP TO 22 MPH
EARLY IN THE AFTERNOON.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 2800 FT AGL
UNTIL 1600, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 8 MPH UNTIL 0700, THEN 8 TO 10 MPH
UNTIL 0900, THEN LIGHT UNTIL 1000, THEN WEST 10
TO 18 MPH UNTIL 1400, THEN 13 TO 20 MPH UNTIL
1700, THEN AROUND 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN FAIR UNTIL 1500, THEN
POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........38 38 38 32 27 26 24 30 33 28 31 29
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 10 10 10 10 10 10 10
TEMP............2 4 6 12 15 19 21 23 24 23 21 18
RH..............100 97 94 81 73 64 59 54 55 58 61 67
20 FT WIND DIR..W SW SW SW SW SW W W W W W W
20 FT WIND SPD..5 6 6 7 8 9 12 13 13 13 12 6
20 FT WIND GUST.8 9 10 12 14 16 18 21 22 21 18 17
MIX HGT (KFT)...0.2 0.2 0.1 0.5 1.2 2.0 2.6 2.8 2.9 2.4 0.9 0.2
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.8 7 7 7 10 14 16 18 20 18 13 10
VRATE KT-FT/1K..1 1 0 3 10 24 37 46 49 38 10 2
SMOKEDISPERSION.P P P P P P P F F P P P
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) UNTIL 2300, THEN
MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF SNOW
AFTER 2300 UNTIL 0500, THEN SNOW LIKELY.
CWR.................8 PERCENT.
CHANCE OF PCPN......70 PERCENT.
MIN TEMPERATURE.....AROUND 10 ABOVE.
MAX HUMIDITY........91 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 13 MPH. GUSTS UP TO 20 MPH
EARLY IN THE EVENING.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 9 TO 14 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........31 27 26 28 36 61 61 68 75 78 79 82
WEATHER COV..... CHC CHC CHC CHC CHC CHC LKY
WEATHER TYPE.... SN SN SN SN SN SN SN
TSTM COV........
CWR.............0 0 0 0 0 10 10 10 10 10 10 10
CHC OF PCPN (%).10 10 10 10 10 40 40 40 40 40 40 70
TEMP............15 14 11 10 10 10 10 10 10 10 10 10
RH..............74 77 83 83 80 80 80 80 83 87 91 91
20 FT WIND DIR..W W SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..6 7 8 9 9 9 9 8 8 8 7 7
20 FT WIND GUST.17 18 20 20 20 20 20 20 20 18 18 12
MIX HGT (KFT)...0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR.W W SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.10 12 12 10 12 12 12 10 10 10 12 12
VRATE KT-FT/1K..1 2 2 2 2 2 2 2 2 2 2 2
SMOKEDISPERSION.P P P P P P P P P P P P
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SNOW LIKELY
UNTIL 1700, THEN CHANCE OF SNOW.
CWR.................8 PERCENT INCREASING TO 20 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF PCPN......70 PERCENT.
MAX TEMPERATURE.....AROUND 25.
MIN HUMIDITY........77 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 13 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 1900 FT AGL
UNTIL 1700, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 18 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........82 82 82 82 82 79 77 76 74 73 72 71
WEATHER COV.....LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY CHC
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............10 10 10 10 10 0 0 0 0 0 0 20
CHC OF PCPN (%).70 70 70 70 70 60 60 60 60 60 60 40
TEMP............11 13 15 18 18 21 22 24 25 24 22 23
RH..............91 87 84 77 84 81 81 77 78 81 88 81
20 FT WIND DIR..SW SW SW SW SW SW SW W W W SW SW
20 FT WIND SPD..7 8 8 8 8 8 8 9 9 8 7 6
20 FT WIND GUST.12 13 13 13 13 13 13 15 15 13 12 18
MIX HGT (KFT)...0.3 0.3 0.3 0.7 1.1 1.5 1.7 1.8 1.9 1.5 1.2 0.8
TRANSP WIND DIR.SW W W W W W W W W W SW SW
TRANSP WIND SPD.12 10 10 13 14 16 17 17 18 17 17 16
VRATE KT-FT/1K..3 3 3 8 14 21 24 27 30 24 18 12
SMOKEDISPERSION.P P P P P P P P P P P P
FORECASTER...RJK
REQUESTED BY...CHRIS GREEN
TYPE OF REQUEST...PRESCRIBED
.TAG 2526918.1/BOU
.DELDT 12/03/25
.FORMATTERVERSION 2.0.0
.EMAIL CHRISTOPHER.E.GREEN@USDA.GOV
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