Spot Forecast
Issued by NWS Denver/Boulder, CO

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636
FNUS75 KBOU 251220
FWSBOU

Spot Forecast for North Fork Hand Piles Rx...USFS
National Weather Service Denver/Boulder CO
520 AM MST Sun Jan 25 2026

If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Light snow is expected this afternoon and evening at
the burn area, with 2 to 4 inches of snow accumulation possible
by midnight tonight.  It will be very cold today and tonight, with
some moderation in temperatures on Monday. Smoke dispersal will be
good to very good both this afternoon and Monday afternoon at the
burn site.

.TODAY...

Sky/weather.........Cloudy (85-95 percent). Chance of snow until
                    1200, then snow.
CWR.................16 percent increasing to 35 percent late in the
                    morning, then decreasing to 12 percent late in
                    the afternoon.
Chance of pcpn......80 percent.
Chance of thunder...4 percent.
Max temperature.....Around 7 above.
Min humidity........70 percent.
Wind (20 ft)........West winds 12 to 17 mph until 1300, then
                    northwest 11 to 16 mph. Gusts up to 30 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 3000 ft AGL
                    until 1100, then 5000 ft AGL until 1700, then
                    1900 ft AGL.
Transport winds.....West 20 to 29 mph until 1100. Northwest around
                    21 mph after 1700.
Smoke dispersal.....Poor until 0900, then fair until 1000, then
                    good until 1100, 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 (%).........85  85  86  86  87  93  94  95  95  92  88  84
Weather cov.....SCH CHC CHC CHC CHC CHC LKY DEF LKY LKY CHC CHC
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............10  10  20  20  20  30  30  30  40  30  30  10
Chc of pcpn (%).20  30  30  40  40  40  60  80  70  60  40  30
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............-3  -3  -2  1   4   4   6   6   6   5   2   -1
RH..............90  85  82  74  70  71  70  73  71  74  76  79
20 FT wind dir..W   W   W   W   W   W   W   NW  NW  NW  NW  NW
20 FT wind spd..13  15  15  15  15  14  14  14  14  15  13  12
20 FT wind gust.24  25  26  28  28  29  29  28  28  28  29  30
Mix hgt (kft)...0.6 0.5 1.2 2.4 3.7 4.7 5.4 5.4 5.2 4.6 3.6 1.9
Transp wind dir.W   W   W   W   NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.20  20  21  26  29  30  30  30  29  30  26  21
Vrate kt-ft/1K..9   9   21  56  93  122 140 141 131 119 83  34
SmokeDispersion.P   P   P   F   G   VG  VG  VG  VG  VG  G   P

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) until 2200, then
                    mostly clear (15-25 percent). Chance of snow
                    until 2200, then slight chance of snow until
                    2400. Patchy blowing snow after 2300 until
                    0500, then areas of blowing snow.
CWR.................12 percent decreasing to 2 percent overnight.
Chance of pcpn......30 percent.
Chance of thunder...1 percent.
Min temperature.....Around 7 below.
Max humidity........84 percent.
Wind (20 ft)........Breezy. West winds 13 to 21 mph until 2400,
                    then 20 to 28 mph. Gusts up to 47 mph.
Mixing height.......1400 ft AGL until 1900, then Below 1000 FT AGL.
Transport winds.....West 22 to 31 mph until 0500, then around 31
                    mph.
Smoke dispersal.....Poor.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........73  63  52  51  40  28  10  4   4   5   5   8
Weather cov.....CHC CHC CHC CHC SCH SCH PTY PTY PTY PTY PTY ARS
Weather type....SN  SN  SN  SN  SN  SN  BSN BSN BSN BSN BSN BSN
Tstm cov........
CWR.............10  10  10  10  10  10  0   0   0   0   0   0
Chc of pcpn (%).30  30  30  30  20  20  10  10  10  10  0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............-3  -5  -5  -4  -6  -5  -4  -4  -3  -3  -5  -1
RH..............84  81  76  66  69  60  54  56  52  56  60  47
20 FT wind dir..NW  W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..13  14  15  17  18  21  21  22  23  23  25  26
20 FT wind gust.29  30  32  35  36  38  39  41  43  44  46  47
Mix hgt (kft)...1.4 0.4 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW  NW  W   W   W   W   W   W   W   W   W   W
Transp wind spd.22  23  25  26  28  28  29  31  31  31  30  31
Vrate kt-ft/1K..27  8   9   11  11  11  11  11  12  11  12  12
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

.MONDAY...

Sky/weather.........Mostly sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 21.
Min humidity........28 percent.
Wind (20 ft)........Breezy. West winds 21 to 29 mph with gusts to
                    around 55 mph.
Mixing height.......Below 1000 FT AGL until 1000, then 2700 ft AGL
                    until 1700, then Below 1000 FT AGL.
Transport winds.....West 33 to 39 mph until 1100, then 44 to 54 mph
                    until 1700, then around 41 mph.
Smoke dispersal.....Poor until 1000, then fair until 1100, then
                    good until 1300, then very good until 1600,
                    then fair until 1700, then poor.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........12  8   11  7   6   5   5   5   5   7   10  12
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............0   1   5   10  13  16  18  20  21  21  19  18
RH..............46  43  36  30  29  28  28  29  30  30  31  32
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..26  26  26  25  24  23  23  23  23  24  25  26
20 FT wind gust.49  51  51  51  49  49  49  51  52  53  54  55
Mix hgt (kft)...0.4 0.4 0.5 0.8 1.3 1.7 2.3 2.8 3.0 2.4 1.5 0.7
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.33  33  36  39  39  44  47  51  53  51  46  41
Vrate kt-ft/1K..12  12  16  29  45  66  95  124 136 104 59  25
SmokeDispersion.P   P   P   P   F   G   G   VG  VG  VG  F   P

$$
Forecaster...66
Requested by...Quentin Pearson
Type of request...PRESCRIBED
.TAG 2600956.0/BOU
.DELDT 01/25/26
.FormatterVersion 2.0.0
.EMAIL quentin.pearson@usda.gov