201
FNUS75 KBOU 120840
FWSBOU
SPOT FORECAST FOR NORTH FORK HAND PILES RX...USFS
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
140 AM MST MON JAN 12 2026
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS WILL MAINTAIN A WESTERLY (250-280 DEGREES)
COMPONENT THROUGH THE FORECAST PERIOD. ON MONDAY, WINDS ARE
EXPECTED TO BE 15-20 MPH WITH GUSTS BETWEEN 30-35 MPH.
TEMPERATURES WILL BE IN THE MID TO UPPER 30S WITH MINIMUM RELATIVE
HUMIDITY VALUES BETWEEN 35-40%. EXPECTING A FEW HOURS OF FAIR
SMOKE DISPERSAL AFTER 1300 AS MIXING HEIGHTS REACH AROUND 2,000
FEET.
SLIGHTLY STRONGER WINDS AND HIGHER MIXING HEIGHTS ARE EXPECTED ON
TUESDAY THAT WILL ALLOW FOR FAIR TO GOOD SMOKE DISPERSAL
CONDITIONS AFTER 1000. WESTERLY WINDS ARE EXPECTED TO BE 15-20
MPH WITH GUSTS BETWEEN 35-40 MPH, AND MIXING HEIGHTS WILL CLIMB TO
ABOUT 2,500 FEET. RELATIVE HUMIDITY VALUES WILL ALSO BE SLIGHTLY
HIGHER, RANGING FROM 45-50% IN THE AFTERNOON.
TODAY
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) UNTIL 0700, THEN
MOSTLY SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 39.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........WEST WINDS 13 TO 21 MPH WITH GUSTS TO AROUND 32
MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 2000 FT AGL
UNTIL 1600, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....WEST 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 (%).........27 18 21 12 12 13 13 9 7 11 13 19
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............24 25 26 30 35 37 38 39 39 38 36 31
RH..............47 45 45 40 36 36 37 37 37 39 41 48
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..18 17 17 16 15 15 15 15 15 15 16 16
20 FT WIND GUST.32 32 32 31 29 28 28 28 29 30 30 29
MIX HGT (KFT)...0.4 0.4 0.5 0.7 1.1 1.4 1.6 1.9 2.0 1.7 0.7 0.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.23 22 21 21 22 23 24 25 24 24 20 21
VRATE KT-FT/1K..9 8 9 12 21 28 33 43 42 36 13 9
SMOKEDISPERSION.P P P P P P P F F P P P
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 26.
MAX HUMIDITY........59 PERCENT.
WIND (20 FT)........WEST WINDS 14 TO 22 MPH WITH GUSTS TO AROUND 37
MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....WEST 21 TO 28 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........24 17 15 10 13 17 19 22 24 28 33 33
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............30 30 30 29 28 28 28 28 27 26 27 26
RH..............50 49 49 49 50 48 48 51 54 56 55 59
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..16 16 17 17 16 16 17 17 18 18 18 20
20 FT WIND GUST.30 31 32 32 33 33 35 35 36 36 37 37
MIX HGT (KFT)...0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.22 22 23 22 22 21 21 24 28 28 28 25
VRATE KT-FT/1K..9 8 8 8 8 7 8 9 11 11 11 10
SMOKEDISPERSION.P P P P P P P P P P P P
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) UNTIL 0700, THEN
PARTLY CLOUDY (40-50 PERCENT).
CWR.................4 PERCENT.
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 37.
MIN HUMIDITY........45 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 23 MPH UNTIL 1600, THEN 16 TO
24 MPH. GUSTS UP TO 40 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 2400 FT AGL
UNTIL 1700, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....WEST 30 TO 36 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN FAIR UNTIL 1200, 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 (%).........57 46 50 38 43 47 44 41 38 39 39 40
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 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............27 27 28 31 34 35 36 37 37 36 35 33
RH..............55 57 55 50 47 45 45 45 46 47 49 51
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..20 20 20 20 18 18 18 18 18 18 20 20
20 FT WIND GUST.37 37 38 38 37 37 38 39 40 40 40 40
MIX HGT (KFT)...0.5 0.5 0.7 1.0 1.5 1.9 2.3 2.5 2.5 2.0 1.3 0.7
TRANSP WIND DIR.W W W W W W W W W W NW NW
TRANSP WIND SPD.30 30 30 31 32 32 33 35 36 35 33 31
VRATE KT-FT/1K..13 14 18 28 42 53 66 75 76 59 38 20
SMOKEDISPERSION.P P P P F F G G G F P P
FORECASTER...BONNER
REQUESTED BY...QUENTIN PEARSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2528607.0/BOU
.DELDT 01/12/26
.FORMATTERVERSION 2.0.0
.EMAIL QUENTIN.PEARSON@USDA.GOV
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