Spot Forecast
Issued by NWS Denver/Boulder, CO

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FNUS75 KBOU 171005
FWSBOU

Spot Forecast for Magic Feather Rx...USFS
National Weather Service Denver/Boulder CO
405 AM MDT Wed Apr 17 2024

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

.DISCUSSION...Skies will be mostly cloudy today ahead of an
approaching upper level trough and cold front. Warm west winds
will increase ahead of the front during the day. Scattered showers
will develop in the afternoon, and a thunderstorm is possible.
Winds will shift in the early evening, becoming northwest or
north.

A cool and moist period is expected for Thursday through
Saturday, with periods of showers, and mostly light east winds.
While there`s some chance of snow showers throughout, the most
likely time for light snow is Friday night into Saturday morning.
Smoke dispersal will likely remain poor through this period.
Warmer and breezy conditions are expected starting Sunday, with
better smoke dispersal.

.TODAY...

Sky/weather.........Mostly cloudy. Slight chance of rain showers
                    after 1300 until 1500, then chance of rain
                    showers and slight chance of thunderstorms.
CWR.................14 percent.
Chance of pcpn......40 percent.
LAL.................1 until 1500, then 2.
Max temperature.....Around 53.
Min humidity........38%.
Wind (20 ft)........Breezy. West winds 12-18 mph with gusts to
                    around 28 mph until 1200, then 21-27 mph with
                    gusts to around 35 mph. Gusty and erratic winds
                    expected near thunderstorms after 1500.
Mixing height.......Rising to 4000 FT AGL by 0900 and 7000 ft AGL
                    by 1300.
Transport winds.....West 20 mph increasing to 30 mph by 1200.
Smoke dispersal.....Poor until 0800, then good until 0900, then
                    very good until 1000, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........63  64  66  67  67  69  68  66  65  63  68  69
Weather cov.....                            SCH SCH CHC CHC CHC
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........                                    SCH SCH SCH
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
Chc of pcpn (%).0   0   0   10  10  10  10  20  20  30  30  40
LAL.............1   1   1   1   1   1   1   1   1   2   2   2
Temp............36  34  39  42  47  49  50  52  52  53  52  51
RH..............54  64  54  52  45  42  40  38  39  38  40  41
20 FT wind dir..W   W   W   SW  W   W   W   W   W   W   W   W
20 FT wind spd..13  13  14  15  17  17  22  23  22  25  24  23
20 FT wind gust.18  18  21  22  25  28  33  35  33  35  35  33
Mix hgt (kft)...0.6 2.0 3.3 4.4 5.4 6.2 6.7 7.0 7.0 6.6 6.0 5.2
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.16  22  26  30  32  35  36  37  37  36  32  28
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..8   36  74  115 154 187 208 224 225 206 169 124
SmokeDispersion.P   P   G   VG  E   E   E   E   E   E   E   VG

.TONIGHT...

Sky/weather.........Mostly cloudy. Chance of rain showers until
                    2000. Slight chance of thunderstorms until
                    2100. Chance of snow showers after 1900.
CWR.................17 percent.
Chance of pcpn......50 percent.
LAL.................2 until 2100, then 1.
Min temperature.....Around 27.
Max humidity........80%.
Wind (20 ft)........West winds 17-24 mph with gusts to around 33
                    mph until 2100, then northwest 7-14 mph with
                    gusts to around 20 mph until 0200, then north
                    6-10 mph until 0400, then northeast around 7
                    mph. Gusty and erratic winds expected near
                    thunderstorms until 2100.
Mixing height.......2400 ft AGL until 2000, then around 1000 ft AGL.
Transport winds.....West 21-28 mph until 2100, then northwest 10-17
                    mph until 0100, then southeast around 10 mph.
Smoke dispersal.....Good until 1900, then fair until 2000, then
                    poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........78  82  83  84  86  87  91  91  91  92  91  91
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RS  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Tstm cov........SCH SCH SCH
CWR.............20  20  20  20  20  20  20  20  20  20  20  20
Chc of pcpn (%).50  50  50  50  50  50  50  50  50  50  50  50
LAL.............2   2   2   1   1   1   1   1   1   1   1   1
Temp............50  45  42  40  38  36  35  34  31  30  28  28
RH..............41  51  57  63  64  66  65  67  74  76  80  78
20 FT wind dir..W   W   NW  NW  NW  NW  NW  NW  N   NE  NE  NE
20 FT wind spd..24  21  17  14  13  13  10  7   6   6   7   7
20 FT wind gust.33  30  23  20  17  15  14  12  10  9   9   9
Mix hgt (kft)...3.3 2.4 1.5 1.0 0.8 0.9 1.1 1.2 1.4 1.5 1.4 1.4
Transp wind dir.W   W   NW  NW  NW  W   W   W   S   SE  SE  S
Transp wind spd.28  24  21  17  14  13  10  9   9   9   9   9
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..80  49  27  14  10  9   10  10  11  12  12  12
SmokeDispersion.G   F   P   P   P   P   P   P   P   P   P   P

.THURSDAY...

Sky/weather.........Mostly cloudy. Chance of snow showers.
CWR.................16 percent.
Chance of pcpn......50 percent.
LAL.................1.
Max temperature.....Around 40.
Min humidity........44%.
Wind (20 ft)........East winds 6-12 mph.
Mixing height.......1000 ft AGL rising to 3000 ft AGL by 1300.
Transport winds.....Southeast 8-13 mph until 1300, then south.
Smoke dispersal.....Poor.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........85  79  76  73  70  67  64  65  66  67  71  76
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Tstm cov........
CWR.............20  20  20  20  20  20  20  20  20  20  20  20
Chc of pcpn (%).50  50  50  50  50  50  40  40  40  40  40  40
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............27  27  27  29  31  33  36  37  38  40  40  39
RH..............80  77  73  66  61  59  52  50  47  45  44  47
20 FT wind dir..E   E   E   E   E   E   E   E   E   E   E   E
20 FT wind spd..7   7   7   8   8   9   10  10  10  10  10  10
20 FT wind gust.12  12  12  13  13  15  16  16  16  16  16  16
Mix hgt (kft)...1.2 1.4 1.6 1.9 2.2 2.5 2.7 3.0 3.1 3.0 2.6 2.1
Transp wind dir.SE  SE  SE  SE  SE  S   S   S   S   S   S   SE
Transp wind spd.8   9   9   10  12  12  13  13  13  13  13  12
Haines index....2   2   2   2   2   2   2   2   2   2   2   2
Vrate kt-ft/1K..8   11  13  17  21  26  30  33  35  33  28  22
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P   P

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly cloudy. Chance of snow showers. Lows in the mid 20s. Highs
in the lower 40s. East winds 7-14 mph.
.SATURDAY...
Snow showers likely and slight chance of thunderstorms. Lows in
the mid 20s. Highs in the lower 40s. East winds 7-14 mph.
.SUNDAY...
Warmer. Partly cloudy. Slight chance of thunderstorms and snow
showers. Lows in the upper 20s. Highs in the upper 50s. Southwest
winds 8-16 mph.

$$
Forecaster...Gimmestad
Requested by...Alex Doud
Type of request...PRESCRIBED
.TAG 2410720.2/BOU
.DELDT 04/17/24
.FormatterVersion 1.0.26
.EMAIL Alexander.doud@usda.gov
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