136
FNUS75 KCYS 191742
FWSCYS

Spot Forecast for Bison Storm Exercise...NWS
National Weather Service Cheyenne WY
1042 AM MST Wed Nov 19 2025

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

.DISCUSSION...

Weather concerns remain minimal during the day today as mild temperatures
and mostly sunny skies dominate. However, a storm system approaching from
the southwest will lead to breezy conditions throughout the afternoon.
Westerly winds at 15 MPH are expected with gusts to 25 MPH possible.
Winds will ease this evening, with winds becoming light and variable
overnight. There is a slight chance of rain/snow showers overnight as
moisture aloft increases from the approaching storm system. Heading into
Thursday, clouds will increase ahead of the system, leading to cooler
high temperatures. Winds will remain relatively light throughout much of
the day at about 5 to 10 MPH, however, winds are expected to shift more
out of the southeast by mid-afternoon. Precipitation will begin to creep
into the area Thursday evening.

.REST OF TODAY...

Sky/weather.........Mostly sunny (40-50 percent).
Max temperature.....Around 57.
Min humidity........30 percent.
Surface winds (mph).West winds 6 to 17 mph.

TIME (MST)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........29  36  43  48  53  51  61
Weather cov.....
Weather type....
Tstm cov........
Temp............53  54  55  56  55  54  50
RH..............36  34  31  30  31  32  37
Surface wnd dir.W   W   W   W   W   W   W
Surface wnd spd.17  16  15  13  10  7   6
Surface wnd gst.24  23  21  17  14  10  8

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    partly cloudy (35-45 percent).
Min temperature.....Around 29.
Max humidity........100 percent.
Surface winds (mph).Southwest winds around 5 mph increasing to
                    around 6 mph.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........65  62  62  60  54  55  52  47  33  30  33  38
Weather cov.....
Weather type....
Tstm cov........
Temp............45  43  41  39  38  38  36  35  35  33  32  32
RH..............47  51  57  62  67  67  72  75  75  82  85  89
Surface wnd dir.W   W   W   W   SW  S   SW  W   W   W   W   SW
Surface wnd spd.5   5   5   5   5   5   5   5   5   6   6   6
Surface wnd gst.7   7   7   7   7   7   7   7   7   7   8   8

.THURSDAY...

Sky/weather.........Mostly sunny (45-55 percent) then becoming
                    mostly cloudy (70-80 percent). Chance of rain
                    showers late in the afternoon.
Max temperature.....Around 49.
Min humidity........49 percent.
Surface winds (mph).South winds 6 to 8 mph shifting to the
                    southeast 9 to 14 mph in the late morning and
                    afternoon.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........55  35  44  31  33  46  53  54  55  59  66  73
Weather cov.....                                            CHC
Weather type....                                            RW
Tstm cov........
Temp............30  32  36  42  45  47  48  48  48  47  45  44
RH..............100 92  82  65  55  51  49  51  51  53  58  60
Surface wnd dir.SW  S   S   S   S   S   SE  SE  SE  SE  SE  SE
Surface wnd spd.6   6   7   8   10  13  13  14  13  13  10  9
Surface wnd gst.8   8   9   12  15  17  18  18  18  17  15  14

$$
Forecaster...Fuller
Requested by...Darren Snively
Type of request...OTHER
.TAG 2526398.0/CYS
.DELDT 11/19/25
.FormatterVersion 2.0.0
.EMAIL darren.v.snively@noaa.gov