115
FNUS75 KBOU 171216
FWSBOU
SPOT FORECAST FOR NORTH FORK CAMPGROUND PILES RX...USFS
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
516 AM MST WED DEC 17 2025
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A HIGH WIND WARNING WILL BE IN EFFECT FROM MID-MORNING THROUGH TONIGHT
AS A POTENT DOWNSLOPE WIND EVEN DEVELOPS. CURRENT WINDS AS OF 5 AM ARE
RELATIVELY LIGHT AND GENERALLY OUT OF THE SOUTH, BUT THESE SHOULD
TRANSITION TO A MORE SOUTHWEST COMPONENT AFTER DAYBREAK AND EVENTUALLY
WESTERLY AFTER ~1000. STRONGEST WINDS ARE EXPECTED THIS AFTERNOON AND
INTO TONIGHT, WITH SUSTAINED 20-T SPEEDS 30-40 MPH, AND GUSTS EXCEEDING
60 MPH AT TIMES. EXPECT MODERATE HUMIDITY LEVELS DURING THE DAY, RISING
TO OR EVEN ABOVE 80% THIS EVENING WITH EXPECTED SNOWFALL.
SNOW SHOWERS LOOK TO DEVELOP EARLY AFTERNOON AND CONTINUE THROUGH THIS
EVENING, WITH TOTAL ACCUMULATIONS OF 3 TO 5 INCHES FORECAST. EXPECT
CONSIDERABLY DRIFTING AND BLOWING SNOW THROUGH THE PERIOD. WITH THE
STRONG WINDS IN PLACE, SMOKE DISPERSAL WILL BE HIGHLY FAVORABLE BOTH
TODAY AND THURSDAY.
HEFTY WEST WINDS ARE FORECAST TO CONTINUE THURSDAY, ALBEIT WITH DRIER
CONDITIONS AND NO PRECIPITATION.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) UNTIL 1000, THEN
PARTLY CLOUDY (25-35 PERCENT) UNTIL 1100, THEN
MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
SNOW SHOWERS AFTER 0800 UNTIL 1100, THEN CHANCE
OF SNOW SHOWERS UNTIL 1400, THEN SNOW SHOWERS
LIKELY. PATCHY BLOWING SNOW AFTER 1600 UNTIL
1700, THEN BLOWING SNOW.
CWR.................4 PERCENT INCREASING TO 54 PERCENT.
CHANCE OF PCPN......75 PERCENT.
CHANCE OF THUNDER...2 PERCENT.
MAX TEMPERATURE.....AROUND 39.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........VERY WINDY. WEST WINDS 31 TO 41 MPH WITH GUSTS
TO AROUND 68 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800, THEN 2500 FT AGL.
TRANSPORT WINDS.....WEST 32 TO 39 MPH UNTIL 0900, THEN 42 TO 52 MPH
UNTIL 1700, THEN AROUND 40 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900, THEN GOOD UNTIL 1500, THEN
VERY GOOD UNTIL 1600, THEN GOOD UNTIL 1700,
THEN FAIR.
TIME (MST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........15 25 25 30 63 63 63 73 73 76 82
WEATHER COV..... SCH SCH SCH CHC CHC CHC LKY LKY LKY DEF
WEATHER TYPE.... SW SW SW SW SW SW SW SW SW BSN
TSTM COV........
CWR.............0 0 0 0 40 40 40 50 50 50 50
CHC OF PCPN (%).5 15 20 30 45 50 55 60 65 70 75
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0
TEMP............32 34 37 39 39 38 38 38 36 34 33
RH..............45 43 40 43 48 54 63 63 70 80 85
20 FT WIND DIR..SSW SW SW W W W W W W W W
20 FT WIND SPD..31 35 36 37 37 38 38 38 38 39 40
20 FT WIND GUST.53 60 62 64 66 66 66 63 64 63 68
MIX HGT (KFT)...0.5 1.0 1.6 2.2 2.2 2.3 2.4 2.4 2.6 1.9 1.5
TRANSP WIND DIR.W W W W W W W W W W W
TRANSP WIND SPD.32 39 44 51 49 48 47 47 47 43 40
VRATE KT-FT/1K..15 34 61 97 96 95 98 97 106 70 50
SMOKEDISPERSION.P P G G G G G G VG G F
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) UNTIL 2300, THEN
MOSTLY CLEAR (10-20 PERCENT). SNOW SHOWERS
LIKELY UNTIL 2000. CHANCE OF SNOW SHOWERS AFTER
2000 UNTIL 2300. BLOWING SNOW.
CWR.................54 PERCENT DECREASING TO 1 PERCENT.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF THUNDER...4 PERCENT.
MIN TEMPERATURE.....AROUND 14.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........VERY WINDY. WEST WINDS 37 TO 47 MPH WITH GUSTS
TO AROUND 73 MPH UNTIL 0500, THEN AROUND 36 MPH
WITH GUSTS TO AROUND 60 MPH.
MIXING HEIGHT.......1500 FT AGL UNTIL 2000, THEN 1000 FT AGL UNTIL
2100, THEN BELOW 1000 FT AGL UNTIL 2200, THEN
1200 FT AGL.
TRANSPORT WINDS.....WEST 40 TO 50 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1900, THEN FAIR UNTIL 2000, THEN
POOR UNTIL 2200, THEN GOOD UNTIL 2300, THEN
FAIR UNTIL 0200, THEN GOOD UNTIL 0300, THEN
POOR UNTIL 0500, THEN FAIR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........85 80 58 58 58 14 17 16 16 19 20 19
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
WEATHER TYPE....BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN
TSTM COV........
CWR.............50 45 40 30 25 10 0 0 0 0 0 0
CHC OF PCPN (%).70 70 40 40 40 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............32 28 25 24 21 19 18 17 16 15 15 14
RH..............80 75 70 60 52 50 49 51 51 54 54 55
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..41 43 44 45 45 44 44 44 43 40 38 36
20 FT WIND GUST.69 70 71 73 73 73 73 73 71 69 66 60
MIX HGT (KFT)...2.5 1.4 1.0 0.7 2.3 1.5 1.2 1.4 1.6 1.0 1.1 1.4
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.41 46 47 45 49 46 44 44 45 40 41 40
VRATE KT-FT/1K..88 56 40 24 97 58 42 52 63 37 39 49
SMOKEDISPERSION.G F P P G F F F G P P F
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) UNTIL 1200, THEN
PARTLY CLOUDY (25-35 PERCENT). BLOWING SNOW
UNTIL 0700, THEN AREAS OF BLOWING SNOW UNTIL
0900, THEN PATCHY BLOWING SNOW UNTIL 1700.
SLIGHT CHANCE OF SNOW AFTER 1700.
CWR.................5 PERCENT.
CHANCE OF PCPN......20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 29.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........WINDY. WEST WINDS 25 TO 33 MPH UNTIL 1300, THEN
20 TO 28 MPH. GUSTS UP TO 56 MPH.
MIXING HEIGHT.......2600 FT AGL UNTIL 1700, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....WEST 41 TO 51 MPH UNTIL 1700, THEN AROUND 40
MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1300, THEN VERY GOOD UNTIL 1500,
THEN GOOD UNTIL 1600, THEN FAIR UNTIL 1700,
THEN POOR.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........19 12 11 10 15 23 27 27 26 26 28 30
WEATHER COV.....DEF ARS ARS PTY PTY PTY PTY PTY PTY PTY PTY SCH
WEATHER TYPE....BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN BSN SN
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 10
CHC OF PCPN (%).0 0 0 0 0 10 10 10 10 10 10 20
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............14 15 14 17 19 22 25 27 27 27 26 25
RH..............52 49 50 44 40 37 32 30 30 35 42 46
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..33 32 31 29 28 26 25 23 22 22 23 25
20 FT WIND GUST.56 54 52 51 51 51 49 47 46 45 46 44
MIX HGT (KFT)...1.7 1.5 2.0 2.1 2.3 2.5 2.5 2.6 2.6 2.0 1.5 0.9
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.49 46 44 45 45 44 45 45 46 44 43 40
VRATE KT-FT/1K..72 62 77 83 89 96 98 101 103 77 54 32
SMOKEDISPERSION.G G G G G G G VG VG G F P
FORECASTER...RODRIGUEZ
REQUESTED BY...EVAN GOVER
TYPE OF REQUEST...PRESCRIBED
.TAG 2527575.3/BOU
.DELDT 12/17/25
.FORMATTERVERSION 2.0.0
.EMAIL EVAN.GOVER@USDA.GOV
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