029
FNUS75 KCYS 101106
FWSCYS

Spot Forecast for Chadron Creek RX...USDA Forest Service
National Weather Service Cheyenne WY
506 AM MDT Fri Oct 10 2025

If conditions become unrepresentative, contact the National Weather
Service at (307) 772-2227

.DISCUSSION...

Clouds will be on the increase today with southeast winds becoming
gusty in the afternoon hours. Increasing moisture will keep minimum
RH a little higher today, around 30%. South winds will increase
overnight, gusting to around 40 mph through early Saturday morning.
Expect winds to ease somewhat during the day Saturday, with gusts
to around 25 mph out of the S to SSW. An isolated shower may move
nearby this afternoon/evening and temporarily alter the wind speed/
direction. A few more widely scattered showers and thunderstorms
may move through the area Saturday afternoon and evening.

A strong cold front will move through early Sunday morning, bringing
drier air (min RH between 20 and 25%) and strong westerly winds (gusts
around 40 mph) during the day on Sunday.

.REST OF TODAY...

Sky/weather.........Mostly sunny (45-55 percent) then becoming
                    mostly cloudy (65-75 percent).
CWR.................2 percent.
Max temperature.....Around 72.
Min humidity........28 to 33 percent.
Wind (20 ft)........Southeast winds 5 to 10 mph increasing to 10 to 15 mph.
                    Gusts of 20 to 25 mph.
Mixing height.......3200 ft AGL.
Transport winds.....Southeast 16 to 22 mph.
Smoke dispersal.....Poor (4000 knot-ft) early in the morning
                    increasing to fair (54800 knot-ft) in the
                    afternoon.

TIME (MDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........49  37  40  48  41  43  61  72  72  72  69
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0
Temp............46  48  52  58  62  66  68  70  71  70  69
RH..............86  83  74  57  50  42  37  34  31  32  33
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..6   7   8   10  12  12  12  13  13  13  13
20 FT wind gust.10  13  16  17  20  22  22  23  23  23  23
Mix hgt (kft)...0.3 0.3 0.7 0.8 1.0 1.7 2.2 2.9 3.2 2.4 1.8
Transp wind dir.E   SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
Transp wind spd.16  17  18  18  18  18  20  21  22  21  21
SDspl kt-ft/10004   6   11  17  24  32  42  51  55  45  33

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    rain showers.
CWR.................5 percent.
Min temperature.....Around 55.
Max humidity........80 to 90 percent.
Wind (20 ft)........South winds 15 to 25 mph. Gusts to around 40 mph in
                    the late evening and overnight.
Mixing height.......500 ft AGL.
Transport winds.....Southeast 18 to 24 mph shifting to the south 28
                    to 31 mph in the late evening and overnight.
Smoke dispersal.....Poor (10000 knot-ft).

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........72  79  83  81  78  75  77  75  78  81  79  75
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
Temp............66  63  61  61  60  60  60  58  58  58  57  57
RH..............38  44  50  51  55  58  60  67  69  72  80  83
20 FT wind dir..SE  SE  S   S   S   S   S   S   S   S   S   S
20 FT wind spd..13  14  16  17  18  21  21  21  21  21  21  21
20 FT wind gust.23  25  29  32  35  37  38  39  39  39  38  38
Mix hgt (kft)...1.0 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.7 0.6
Transp wind dir.SE  SE  SE  SE  S   S   S   S   S   S   S   S
Transp wind spd.18  21  23  24  28  29  29  30  31  31  31  31
SDspl kt-ft/100016  14  10  11  13  13  13  15  18  20  19  18

.SATURDAY...

Sky/weather.........Partly sunny (55-65 percent). Slight chance of
                    showers and thunderstorms in the afternoon.
CWR.................4 percent.
Max temperature.....Around 75.
Min humidity........46 percent.
Wind (20 ft)........South winds 10 to 20 mph. Gusts to around to
                    25 mph. Gusty and erratic winds
                    possible near thunderstorms late in the
                    afternoon.
Mixing height.......3700 ft AGL.
Transport winds.....South 17 to 26 mph.
Smoke dispersal.....Poor (12100 knot-ft) early in the morning
                    increasing to good (67100 knot-ft) in the
                    afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........69  74  52  67  57  52  44  47  59  69  70  65
Weather cov.....                        SCH SCH SCH SCH SCH SCH
Weather type....                        RW  RW  RW  RW  RW  RW
Tstm cov........                                    SCH SCH SCH
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............57  56  55  58  63  67  70  71  72  74  72  71
RH..............86  93  100 93  78  68  59  55  51  46  49  51
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..21  18  17  16  15  14  13  13  12  12  12  12
20 FT wind gust.37  35  31  29  26  25  24  23  22  22  21  20
Mix hgt (kft)...0.5 0.7 0.8 0.9 1.3 1.6 2.1 2.8 3.5 3.7 3.0 1.8
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.26  26  23  23  22  21  20  20  21  21  20  17
SDspl kt-ft/100012  16  16  18  24  30  35  48  63  67  50  27

$$
Forecaster...Natoli
Requested by...Ben Jech
Type of request...PRESCRIBED
.TAG 2523170.1/CYS
.DELDT 10/10/25
.FormatterVersion 2.0.0
.EMAIL benjamin.j.jech@usda.gov