141
FNUS75 KBOU 290231
FWSBOU
SPOT FORECAST FOR ST LOUIS CREEK...USFS
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
731 PM MST WED JAN 28 2026
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
SCATTERED LIGHT SNOW SHOWERS ARE EXPECTED TO DEVELOP
OVERNIGHT TONIGHT AND CONTINUE INTO THURSDAY MORNING, BEFORE
TAPERING OFF DURING THE DAY THURSDAY. TOTAL SNOW ACCUMULATION IS
GENERALLY EXPECTED TO BE AN INCH OR LESS. TEMPERATURES SHOULD FALL
INTO THE TEENS OVERNIGHT BEFORE WARMING BACK UP INTO THE MID 20S
TOMORROW AFTERNOON. WINDS SHOULD REMAIN FAIRLY STEADY OUT OF THE
WEST, WITH A FEW GUSTS UP TO 20 MPH POSSIBLE THURSDAY AFTERNOON.
SMOKE DISPERSAL GOOD TO VERY GOOD MOST OF THE DAY.
A FEW SCATTERED SNOW SHOWERS MAY CONTINUE THURSDAY NIGHT INTO
FRIDAY, WITH LITTLE OR NO ADDITIONAL SNOWFALL ACCUMULATION
FORECAST. TEMPERATURES SHOULD BE A FEW DEGREES WARMER THAN
THURSDAY, BUT WEAKER WINDS ARE EXPECTED TO LIMIT THE AREA TO A FEW
HOURS OF FAIR SMOKE DISPERSAL.
REST OF TONIGHT
SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF SNOW UNTIL
2300, THEN SNOW LIKELY UNTIL 0200, THEN CHANCE
OF SNOW.
CHANCE OF PCPN......60 PERCENT.
MIN TEMPERATURE.....AROUND 12.
MAX HUMIDITY........96 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 13 MPH.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 21 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........87 90 90 88 90 91 95 92 89 87
WEATHER COV.....CHC CHC CHC LKY LKY LKY CHC CHC CHC CHC
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CHC OF PCPN (%).40 50 50 60 60 60 40 40 40 40
TEMP............27 23 17 15 14 13 12 12 13 13
RH..............44 55 68 77 80 84 91 96 91 91
20 FT WIND DIR..W W W W W W W W W W
20 FT WIND SPD..7 8 8 8 7 7 7 7 7 7
20 FT WIND GUST.10 13 13 13 10 10 10 10 10 10
MIX HGT (KFT)...1.4 1.6 1.7 1.9 1.7 1.5 1.9 1.9 2.1 2.0
TRANSP WIND DIR.W W W W W W W W W W
TRANSP WIND SPD.18 21 20 17 16 17 20 18 20 18
VRATE KT-FT/1K..23 29 29 29 24 23 33 30 36 32
SMOKEDISPERSION.P P P P P P P P P P
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 1700, THEN
PARTLY CLOUDY (45-55 PERCENT). CHANCE OF SNOW
UNTIL 1100, THEN SLIGHT CHANCE OF SNOW.
CHANCE OF PCPN......40 PERCENT.
MAX TEMPERATURE.....AROUND 26.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 13 MPH.
MIXING HEIGHT.......3700 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 29 MPH UNTIL 1700, THEN AROUND 18
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900, THEN GOOD UNTIL 1300, THEN
VERY GOOD UNTIL 1600, THEN GOOD UNTIL 1700,
THEN POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........92 92 93 88 80 74 70 64 59 56 55 50
WEATHER COV.....CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CHC OF PCPN (%).40 40 30 30 30 20 20 20 20 20 20 20
TEMP............13 12 12 14 17 20 23 25 26 26 25 24
RH..............87 87 91 84 77 67 59 57 55 52 55 57
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..7 7 7 7 8 10 12 12 13 12 10 8
20 FT WIND GUST.10 10 10 10 13 15 17 17 18 17 16 13
MIX HGT (KFT)...2.1 2.2 2.3 3.2 4.0 4.1 4.2 4.3 4.3 4.2 3.7 2.0
TRANSP WIND DIR.W W W W NW W W W W W W W
TRANSP WIND SPD.21 21 20 23 25 25 26 28 29 28 25 18
VRATE KT-FT/1K..38 39 39 65 88 90 97 103 108 101 81 33
SMOKEDISPERSION.P P P G G G G VG VG VG G P
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) UNTIL 2000, THEN
MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
SNOW.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 8 ABOVE.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH UNTIL 2100, THEN AROUND 5
MPH UNTIL 2300, THEN WEST AROUND 5 MPH UNTIL
0500, THEN VARIABLE UP TO 5 MPH.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........48 49 57 54 51 52 60 69 77 77 77 77
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CHC OF PCPN (%).20 20 20 20 20 20 20 20 20 20 20 20
TEMP............21 17 15 14 13 13 12 12 11 11 10 10
RH..............59 70 77 80 84 84 87 87 91 91 96 96
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..7 6 5 3 3 3 3 3 3 3 3 3
20 FT WIND GUST.12 9 8 7 6 7 7 6 6 6 6 7
MIX HGT (KFT)...1.5 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.15 14 13 12 12 12 12 13 14 13 12 10
VRATE KT-FT/1K..20 17 15 14 14 14 14 16 17 16 14 13
SMOKEDISPERSION.P P P P P P P P P P P P
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
SNOW UNTIL 1100, THEN CHANCE OF SNOW UNTIL
1700.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 30.
MIN HUMIDITY........55 PERCENT.
WIND (20 FT)........VARIABLE UP TO 5 MPH UNTIL 1000, THEN WEST 5 TO
8 MPH.
MIXING HEIGHT.......3300 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 18 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN FAIR UNTIL 1400, THEN
GOOD UNTIL 1500, THEN FAIR UNTIL 1600, THEN
POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80 82 85 80 75 70 67 65 62 65 68 71
WEATHER COV.....SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CHC OF PCPN (%).20 20 20 20 20 30 30 30 30 30 30 10
TEMP............9 9 11 14 19 23 26 28 29 29 29 27
RH..............100 100 96 92 80 71 63 58 55 55 55 60
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..3 2 2 3 5 6 7 8 8 8 7 6
20 FT WIND GUST.7 7 8 9 12 13 15 16 17 17 16 15
MIX HGT (KFT)...1.4 1.4 1.4 2.1 2.8 3.5 3.7 3.9 4.1 3.3 2.6 1.8
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.10 9 9 12 14 16 17 17 18 16 14 12
VRATE KT-FT/1K..12 12 11 21 33 49 54 60 66 47 31 18
SMOKEDISPERSION.P P P P P F F F G F P P
FORECASTER...HIRIS
REQUESTED BY...BC13
TYPE OF REQUEST...PRESCRIBED
.TAG 2601278.0/BOU
.DELDT 01/28/26
.FORMATTERVERSION 2.0.0
.EMAIL TIMOTHY.EGAN@USDA.GOV
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