430
FNUS75 KCYS 191228
FWSCYS

Spot Forecast for F.E. Warren...USFWS
National Weather Service Cheyenne WY
528 AM MST Wed Nov 19 2025

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

.DISCUSSION...
Mostly sunny today with breezy conditions arriving around 9am. Westerly
winds will start gusting 15 to 20 mph from 9am through about 4pm.
Afternoon minimum relative humidity values will remain in the 25 to 30
percent range as slightly drier conditions are expected today. No
precipitation is expected today, but precipitation chances return
Thursday evening.

.TODAY...

Sky/weather.........Mostly sunny (35-45 percent).
CWR.................2 percent.
Max temperature.....Around 57.
Min humidity........30 percent.
Wind (20 ft)........West winds 5 to 14 mph.
Mixing height.......6900 ft AGL.
Transport winds.....West 13 to 20 mph decreasing to 9 to 13 mph
                    late in the afternoon.
Smoke dispersal.....Poor (6300 knot-ft) early in the morning,
                    increasing to good (89500 knot-ft) in the
                    late morning, increasing to very good
                    (130600 knot-ft) in the afternoon, then
    decreasing to poor (6900 knot-ft) in the
evening.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........54  39  24  17  32  32  37  44  50  52  50  61
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............30  34  38  46  50  53  54  55  56  55  54  50
RH..............88  78  70  49  42  36  34  31  30  31  32  37
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..8   9   10  12  13  14  13  12  10  8   7   5
20 FT wind gust.15  16  17  21  23  24  23  21  17  14  10  8
Mix hgt (kft)...0.6 0.6 0.5 1.5 3.8 5.3 6.2 6.9 6.8 5.6 1.4 0.9
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.13  14  15  20  24  24  24  22  21  18  13  9
SDspl kt-ft/10006   7   7   25  80  110 131 131 122 90  16  7

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    partly cloudy (35-45 percent).
CWR.................2 percent.
Min temperature.....Around 28.
Max humidity........100 percent.
Wind (20 ft)........Light winds becoming west around 5 mph.
Mixing height.......500 ft AGL.
Transport winds.....West 6 to 8 mph shifting to the northeast
                    around 7 mph overnight, then shifting to the
                    southeast after 3 am shifting to the south
                    around 8 mph early in the morning.
Smoke dispersal.....Poor (2800 knot-ft).

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........63  63  62  59  54  55  54  47  32  30  33  38
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............45  43  41  39  37  36  35  34  34  32  31  31
RH..............47  51  55  62  70  72  75  78  78  85  88  92
20 FT wind dir..W   W   W   W   SW  S   SW  W   W   W   W   SW
20 FT wind spd..3   3   3   3   3   3   3   3   3   5   5   5
20 FT wind gust.7   7   7   7   7   7   7   7   7   7   8   8
Mix hgt (kft)...0.6 0.6 0.7 0.6 0.6 0.6 0.6 0.5 0.5 0.6 0.6 0.6
Transp wind dir.W   W   NW  NW  W   NW  W   W   NE  E   SE  S
Transp wind spd.8   6   7   7   6   7   7   7   7   7   7   8
SDspl kt-ft/10004   3   4   4   3   3   3   3   3   3   3   4

.THURSDAY...

Sky/weather.........Mostly sunny (45-55 percent) then becoming
                    mostly cloudy (70-80 percent). Chance of rain
                    showers late in the afternoon.
CWR.................4 percent increasing to 11 percent late in the
                    afternoon.
Max temperature.....Around 49.
Min humidity........51 percent.
Wind (20 ft)........South winds 5 to 7 mph shifting to the
                    southeast 7 to 12 mph in the late morning and
                    afternoon.
Mixing height.......2900 ft AGL.
Transport winds.....Southeast 9 to 14 mph.
Smoke dispersal.....Poor (4200 knot-ft).

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........53  34  44  31  34  47  55  55  56  60  66  73
Weather cov.....                                            CHC
Weather type....                                            RW
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
Temp............29  31  36  41  44  47  47  48  48  47  45  44
RH..............100 96  82  67  58  51  53  51  51  53  58  60
20 FT wind dir..SW  S   S   S   S   S   SE  SE  SE  SE  SE  SE
20 FT wind spd..5   5   6   7   8   10  10  12  10  9   8   7
20 FT wind gust.8   8   9   12  15  17  18  18  18  17  15  14
Mix hgt (kft)...0.6 0.5 0.5 1.0 1.7 2.3 2.7 2.9 2.8 2.3 1.7 1.1
Transp wind dir.S   SE  S   S   S   S   S   SE  SE  SE  SE  SE
Transp wind spd.9   10  9   12  13  13  13  14  13  13  13  13
SDspl kt-ft/10004   5   4   10  18  25  30  35  31  26  18  12

$$
Forecaster...Mose
Requested by...Michael miller
Type of request...PRESCRIBED
.TAG 2526046.4/CYS
.DELDT 11/19/25
.FormatterVersion 2.0.0
.EMAIL michael_a_miller@fws.gov