058
FNUS75 KCYS 242237
FWSCYS

Spot Forecast for Jack Creek...USFS
National Weather Service Cheyenne WY
337 PM MST Sun Nov 24 2024

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

.DISCUSSION...

A shallow ridge of high pressure will build over the Rockies on Monday,
leading to sunny skies over the region. Recent snowfall will lead to a
minimum relative humidity of around 50 percent Monday afternoon. Winds
will be strongest during the afternoon with sustained southwest winds of
10 to 15 MPH. Gusts up to 20 MPH will be possible. Great overnight humidity
recovery is expected Monday night as precipitation chances increase. Some
overnight accumulation could be possible. Snow is expected to continue
into the day Tuesday with moderate to heavy snow likely. Over 6 inches of
snow accumulation are expected during the day. Southwest winds of 15 to 20
MPH with gusts up to 25 MPH could lead to poor visibility at times.

.MONDAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................3 percent.
Max temperature.....Around 27.
Min humidity........50 percent.
Wind (20 ft)........Southwest winds 6 to 12 mph.
Mixing height.......3600 ft AGL.
Transport winds.....Southwest 13 to 22 mph increasing to 24 to 25
                    mph late in the afternoon.
Smoke dispersal.....Poor (15200 knot-ft) early in the morning
                    increasing to good (76000 knot-ft) in the
                    afternoon.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........11  11  7   4   5   4   5   7   10  20  28  37
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............13  13  15  18  22  25  26  27  27  25  23  21
RH..............80  80  73  64  57  52  50  50  50  55  59  65
20 FT wind dir..S   S   SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..6   7   7   7   8   9   10  12  12  12  10  10
20 FT wind gust.10  12  13  14  15  17  18  20  20  20  20  18
Mix hgt (kft)...1.4 1.4 1.5 1.8 2.2 2.6 3.1 3.5 3.6 3.3 2.8 2.3
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.13  13  13  14  15  16  20  22  24  25  25  25
SDspl kt-ft/100015  15  17  22  29  37  53  66  76  72  61  50

.MONDAY NIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (75-85 percent). Snow showers
                    likely late in the evening. Snow early in the
                    morning.
CWR.................3 percent increasing to 71 percent.
Min temperature.....Around 20.
Max humidity........81 percent.
Wind (20 ft)........Southwest winds 10 to 15 mph.
Mixing height.......900 ft AGL.
Transport winds.....Southwest 28 to 37 mph decreasing to around 25
                    mph early in the morning.
Smoke dispersal.....Good (99100 knot-ft) early in the evening
                    decreasing to poor (19600 knot-ft) late in the
                    night.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........42  46  45  47  50  62  72  79  84  88  91  93
Weather cov.....                    LKY LKY LKY LKY LKY LKY DEF
Weather type....                    SW  SW  SW  SW  SW  SW  SN
Tstm cov........
CWR.............0   0   0   0   0   50  50  50  50  50  50  70
Temp............21  21  21  22  22  23  23  23  24  24  25  26
RH..............65  65  65  62  62  62  65  68  71  74  78  78
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..10  10  10  12  12  12  13  14  14  14  15  14
20 FT wind gust.18  18  18  20  21  23  23  24  25  25  26  25
Mix hgt (kft)...2.1 2.1 2.2 2.6 3.0 3.2 3.1 2.8 2.5 2.4 2.3 0.9
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.28  29  31  33  35  36  37  37  37  36  33  25
SDspl kt-ft/100051  53  61  75  89  99  98  89  80  74  67  20

.TUESDAY...

Sky/weather.........Cloudy (90-100 percent). Snow.
CWR.................71 percent increasing to 84 percent late in the
                    morning, then decreasing to 71 percent late in
                    the afternoon.
Max temperature.....Around 30.
Min humidity........74 percent.
Wind (20 ft)........Southwest winds 12 to 15 mph.
Mixing height.......1800 ft AGL.
Transport winds.....Southwest 22 to 25 mph.
Smoke dispersal.....Poor (24100 knot-ft).

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........93  93  93  93  93  93  93  93  93  93  93  93
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............70  70  70  70  70  80  80  80  80  80  80  70
Temp............27  27  28  28  28  29  29  29  30  29  29  28
RH..............74  78  81  78  81  85  81  88  85  85  85  92
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..15  14  14  15  15  14  14  13  12  12  12  12
20 FT wind gust.25  25  25  26  25  24  25  23  22  21  20  20
Mix hgt (kft)...1.1 1.4 1.5 1.6 1.7 1.7 1.7 1.8 1.8 1.7 1.6 1.4
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.24  23  22  22  22  23  24  25  25  24  23  22
SDspl kt-ft/100024  28  29  31  32  34  37  39  39  36  31  26

$$
Forecaster...Fuller
Requested by...Nicholas Zaczek
Type of request...PRESCRIBED
.TAG 2427228.0/CYS
.DELDT 11/24/24
.FormatterVersion 2.0.0
.EMAIL nicholas.zaczek@usda.gov