239
FNUS75 KBOU 271219
FWSBOU
SPOT FORECAST FOR FAIR PILE RX...USFS
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
519 AM MST TUE JAN 27 2026
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WESTERLY WINDS UP TO 25 MPH CAN BE EXPECTED AT THE
BURN AREA TODAY AND TONIGHT. ON WEDNESDAY, NORTHWESTERLY WINDS UP
TO 15 MPH ARE EXPECTED. SKIES WILL BE CLOUDY THIS MORNING
WITH DECREASING CLOUDS THIS AFTERNOON. PARTLY CLOUDY SKIES ARE
EXPECTED TONIGHT. PRECIPITATION IS NOT EXPECTED TODAY OR TONIGHT.
ON WEDNESDAY, SKIES WILL BE MOSTLY CLOUDY WITH A SLIGHT CHANCE OF
LIGHT SNOW SHOWERS BY AFTERNOON. THERE WILL BE A FEW HOURS OF GOOD
SMOKE DISPERSAL THIS AFTERNOON, WITH A PERIOD OF FAIR SMOKE
DISPERSAL ON WEDNESDAY AFTERNOON.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) UNTIL 1100, THEN
PARTLY CLOUDY (30-40 PERCENT) UNTIL 1600, THEN
MOSTLY SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 23.
MIN HUMIDITY........45 PERCENT.
WIND (20 FT)........WEST WINDS 12 TO 20 MPH. GUSTS UP TO 24 MPH
LATE IN THE MORNING.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 4100 FT AGL
UNTIL 1700, THEN 1200 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 24 MPH UNTIL 1200, THEN 25 TO 30 MPH
UNTIL 1700, THEN AROUND 18 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN FAIR UNTIL 1200, THEN
GOOD UNTIL 1700, THEN POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........75 76 77 67 57 47 41 35 29 26 23 19
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............4 3 6 9 14 18 20 22 23 21 20 18
RH..............55 58 56 54 48 47 47 46 46 46 45 48
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..15 15 15 15 14 14 15 16 17 17 16 15
20 FT WIND GUST.17 18 18 17 18 21 22 24 24 24 23 21
MIX HGT (KFT)...0.8 0.8 0.8 1.0 1.8 2.6 3.4 4.1 4.3 4.2 3.4 1.2
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.16 17 16 15 20 24 28 28 28 26 26 18
VRATE KT-FT/1K..9 9 8 11 28 51 76 93 98 94 71 17
SMOKEDISPERSION.P P P P P F G G G G G P
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 7 ABOVE.
MAX HUMIDITY........67 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 14 MPH WITH GUSTS TO AROUND 20
MPH UNTIL 0500, THEN NORTHWEST AROUND 6 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 17 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........17 14 20 20 16 11 15 18 22 33 43 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 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............14 12 11 10 9 9 8 8 8 8 8 7
RH..............62 63 67 67 66 65 65 63 61 59 59 62
20 FT WIND DIR..W W W W W W W W W W W NW
20 FT WIND SPD..14 12 10 9 9 9 9 8 8 8 8 6
20 FT WIND GUST.20 18 17 16 15 14 14 14 14 14 14 12
MIX HGT (KFT)...0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.7 0.7 0.6
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.17 16 14 12 12 10 9 10 10 10 12 10
VRATE KT-FT/1K..10 9 7 6 6 5 5 4 5 5 6 5
SMOKEDISPERSION.P P P P P P P P P P P P
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) UNTIL 0700, THEN
PARTLY CLOUDY (30-40 PERCENT) UNTIL 1100, THEN
MOSTLY CLOUDY (50-60 PERCENT) UNTIL 1200, THEN
PARTLY CLOUDY (40-50 PERCENT) UNTIL 1700, THEN
MOSTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
SNOW AFTER 1700.
CWR.................5 PERCENT.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 28.
MIN HUMIDITY........37 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH UNTIL 0800, THEN
WEST 5 TO 12 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 2100 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 17 MPH UNTIL 1200, THEN 20 TO 25 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 (%).........55 39 35 28 41 54 50 47 43 46 50 53
WEATHER COV..... SCH
WEATHER TYPE.... SN
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 10 10 20
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............8 8 9 13 18 23 26 28 28 27 25 22
RH..............60 60 55 50 44 40 37 37 37 39 43 47
20 FT WIND DIR..NW NW W W W W W W W W W W
20 FT WIND SPD..6 6 6 6 6 6 7 7 8 8 7 7
20 FT WIND GUST.12 12 12 12 13 14 15 16 17 17 16 16
MIX HGT (KFT)...0.6 0.6 0.6 0.9 1.3 1.7 2.0 2.2 2.1 1.8 1.4 1.0
TRANSP WIND DIR.NW W W NW W W W W W W W W
TRANSP WIND SPD.10 10 9 10 14 17 21 23 24 23 22 21
VRATE KT-FT/1K..4 5 4 8 15 24 33 40 42 35 24 17
SMOKEDISPERSION.P P P P P P P F F P P P
FORECASTER...RJK
REQUESTED BY...JOHN.WEIL@USDA.GOV
TYPE OF REQUEST...PRESCRIBED
.TAG 2601073.0/BOU
.DELDT 01/27/26
.FORMATTERVERSION 2.0.0
.EMAIL JOHN.WEIL@USDA.GOV
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