069
FNUS75 KCYS 241330
FWSCYS

Spot Forecast for Peterson Rx...Nebraska Game and Parks
National Weather Service Cheyenne WY
730 AM MDT Mon Mar 24 2025

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

.DISCUSSION...
Winds will remain gusty this morning until 21z when the front comes through. After the front,
winds will become rather light towards the evening being disconnected from the low level jet.
The jet is expected to remain over Crawford and Chadron through the night to aid in ventilation
and transport winds. Tuesday, an upper level ridge will be pushing through to keep winds light.
Around Tuesday evening, Winds are expected to shift from a northerly to a southerly wind as that
ridge moves overhead.

.TUESDAY...

Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Max temperature.....Around 63.
Min humidity........35 percent.
Wind (20 ft)........Northwest winds 9 to 13 mph.
Mixing height.......6700 ft AGL.
Transport winds.....Northwest 16 to 25 mph.
Smoke dispersal.....Poor (17200 knot-ft) early in the morning
                    increasing to very good (101800 knot-ft) in the
                    afternoon increasing to very good (108900
                    knot-ft) in the afternoon.

TIME (MDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........27  25  26  27  27  31  35  39  38  38
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Temp............44  48  53  56  59  60  61  62  61  61
RH..............70  63  52  47  40  39  36  35  35  36
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  N
20 FT wind spd..9   10  10  10  12  12  13  13  13  12
20 FT wind gust.17  18  20  20  21  22  23  24  24  23
Mix hgt (kft)...1.2 2.5 3.7 4.6 5.4 6.1 6.6 6.7 6.6 6.0
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.16  20  23  25  25  25  25  24  23  21
SDspl kt-ft/100017  43  73  102 118 134 145 142 132 109

.TUESDAY NIGHT...

Sky/weather.........Mostly clear (20-30 percent).
CWR.................0 percent.
Min temperature.....Around 34.
Max humidity........83 percent.
Wind (20 ft)........North winds 7 to 12 mph shifting to the
                    northeast around 5 mph late in the evening,
                    then becoming light in the late evening and
                    overnight becoming south 5 to 6 mph overnight.
Mixing height.......400 ft AGL.
Transport winds.....North 15 to 18 mph shifting to the south 12 to
                    14 mph after 3 am.
Smoke dispersal.....Good (82200 knot-ft) early in the evening
                    decreasing to poor (2100 knot-ft) late in the
                    night.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........37  33  28  23  20  17  14  13  12  11  15  18
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............60  55  51  47  45  43  42  40  39  37  37  36
RH..............37  45  52  60  65  70  70  76  76  82  82  82
20 FT wind dir..N   N   NE  NE  E   SE  SE  S   S   S   S   S
20 FT wind spd..12  9   7   5   3   3   3   3   5   5   5   6
20 FT wind gust.21  17  13  9   7   7   7   7   8   9   9   9
Mix hgt (kft)...5.1 3.7 2.0 0.8 0.4 0.5 0.8 0.8 0.8 0.8 0.8 0.8
Transp wind dir.N   N   NE  NE  E   SE  SE  SE  S   S   S   S
Transp wind spd.18  15  10  7   6   6   7   8   10  12  13  14
SDspl kt-ft/100082  48  18  5   2   3   5   5   7   8   9   10

.WEDNESDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Max temperature.....Around 75.
Min humidity........18 percent.
Wind (20 ft)........Southwest winds 6 to 9 mph shifting to the west
                    7 to 8 mph late in the afternoon.
Mixing height.......7200 ft AGL.
Transport winds.....Southwest 13 to 15 mph shifting to the west 14
                    to 17 mph in the afternoon.
Smoke dispersal.....Poor (10500 knot-ft) early in the morning
                    increasing to very good (107400 knot-ft) in the
                    afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........16  18  20  22  22  21  19  17  14  11  11  11
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............35  39  43  46  53  61  68  70  72  75  74  73
RH..............83  75  68  62  49  38  29  25  22  18  19  19
20 FT wind dir..S   S   S   S   S   SW  SW  SW  SW  SW  W   NW
20 FT wind spd..6   7   7   8   9   9   9   9   9   9   8   7
20 FT wind gust.10  13  14  15  16  16  17  17  17  16  14  12
Mix hgt (kft)...0.8 0.8 0.9 1.3 2.2 3.2 4.4 5.7 6.8 7.2 6.4 4.9
Transp wind dir.S   S   SW  SW  SW  SW  SW  W   W   W   W   W
Transp wind spd.15  15  15  14  13  13  13  14  16  17  16  14
SDspl kt-ft/100011  11  12  16  24  36  48  68  95  107 89  59

$$
Forecaster...McLaughlin
Requested by...Nathan Rau
Type of request...PRESCRIBED
.TAG 2507577.0/CYS
.DELDT 03/24/25
.FormatterVersion 2.0.0
.EMAIL nathan.rau@nebraska.gov