337
FNUS75 KBOU 222037
FWSBOU
SPOT FORECAST FOR BLUE RIVER WEST...USFS
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
137 PM MST THU JAN 22 2026
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
OUR NEXT WINTER SYSTEM WILL ARRIVE ON FRIDAY AND
CONTINUE THROUGH THE WEEKEND. SNOW TOTALS ARE FORECAST TO AMOUNT
TO 5-8 INCHES BETWEEN FRIDAY MORNING AND SUNDAY MORNING. CHANCES
WILL RAMP UP THROUGH THE MORNING ON FRIDAY, WITH THE BEST CHANCES
EXPECTED FRIDAY EVENING THROUGH SATURDAY MORNING. COLD
TEMPERATURES ARE ALSO EXPECTED WITH THIS SYSTEM, WITH BELOW
FREEZING TEMPERATURES EXPECTED THROUGH THE FORECAST PERIOD.
WINDS ARE EXPECTED TO BE FROM THE SOUTHWEST FOR THE OVERNIGHT
HOURS TONIGHT, WITH GUSTS UP TO 20 MPH. WINDS ON FRIDAY MORNING
WILL START OUT FROM THE SOUTHWEST BEFORE TRANSITIONING TO THE WEST
BY 1200. WINDS ARE EXPECTED TO BE 10-15 MPH WITH 20-25 MPH GUSTS
THROUGHOUT THE DAY. MIXING HEIGHTS ARE EXPECTED TO REACH 3,000 TO
3,700 FEET BY 1100, BRINGING FAIR TO GOOD SMOKE DISPERSAL
CONDITIONS THROUGH THE AFTERNOON.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) UNTIL 1600, THEN
PARTLY CLOUDY (25-35 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 32.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
MIXING HEIGHT.......2800 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 25 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1600. POOR AFTER 1700.
TIME (MST) 3PM 4PM 5PM
SKY (%).........23 29 34
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0
TEMP............29 26 23
RH..............29 33 36
20 FT WIND DIR..W W W
20 FT WIND SPD..14 13 10
20 FT WIND GUST.25 24 21
MIX HGT (KFT)...3.7 1.9 1.2
TRANSP WIND DIR.W W W
TRANSP WIND SPD.25 20 16
VRATE KT-FT/1K..80 33 17
SMOKEDISPERSION.G P P
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) UNTIL 0400, THEN
MOSTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
SNOW AFTER 0500.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 12.
MAX HUMIDITY........73 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 11 MPH. GUSTS UP TO 20 MPH
EARLY IN THE EVENING.
MIXING HEIGHT.......1100 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 20 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........34 34 31 31 36 40 39 41 42 47 53 58
WEATHER COV..... SCH
WEATHER TYPE.... SN
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 10 10 10 10 10 10 20
TEMP............20 18 16 14 13 12 12 12 12 13 13 12
RH..............41 44 48 53 55 58 58 58 55 53 58 66
20 FT WIND DIR..W SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..9 9 8 8 9 8 8 8 8 9 9 9
20 FT WIND GUST.20 18 16 16 17 16 16 16 16 17 17 17
MIX HGT (KFT)...1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.15 15 14 15 15 15 16 16 17 18 20 18
VRATE KT-FT/1K..14 14 13 14 14 15 16 16 17 18 19 18
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 0800, THEN CHANCE OF SNOW UNTIL
1100, THEN SNOW.
CHANCE OF PCPN......90 PERCENT.
MAX TEMPERATURE.....AROUND 31.
MIN HUMIDITY........53 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 9 TO 14 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 1600, THEN WEST 10 TO 15
MPH WITH GUSTS TO AROUND 23 MPH.
MIXING HEIGHT.......3400 FT AGL.
TRANSPORT WINDS.....WEST 17 TO 23 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN FAIR UNTIL 1200, THEN
GOOD UNTIL 1500, THEN FAIR UNTIL 1700, THEN
POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........57 55 54 65 76 87 88 89 90 90 91 92
WEATHER COV.....SCH SCH CHC CHC CHC DEF DEF DEF DEF DEF DEF DEF
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CHC OF PCPN (%).20 20 30 30 30 80 80 80 80 80 80 90
TEMP............12 13 15 17 20 23 26 28 28 27 26 24
RH..............70 73 70 77 74 68 63 60 63 68 71 77
20 FT WIND DIR..SW SW SW SW SW SW W W W W W W
20 FT WIND SPD..9 9 10 10 13 13 14 14 14 13 13 12
20 FT WIND GUST.17 17 18 20 23 24 25 24 24 23 23 22
MIX HGT (KFT)...1.1 1.1 1.1 1.8 2.2 3.0 3.3 3.5 3.7 3.2 2.7 2.2
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.20 17 17 18 18 22 23 23 23 21 20 17
VRATE KT-FT/1K..19 17 17 29 36 57 66 70 75 59 46 34
SMOKEDISPERSION.P P P P P F G G G F F P
FORECASTER...BONNER
REQUESTED BY...DUSTY CALFEE
TYPE OF REQUEST...PRESCRIBED
.TAG 2600669.2/BOU
.DELDT 01/22/26
.FORMATTERVERSION 2.0.0
.EMAIL CREIGHTON.CALFEE@USDA.GOV
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