253 
FNUS75 KCYS 131848
FWSCYS

Spot Forecast for Nebraska Fire Academy...NEMA
National Weather Service Cheyenne WY
1248 PM MDT Sat Sep 13 2025

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

.DISCUSSION...

A Pacific upper level trough will slowly move across Wyoming and
into Nebraska, resulting in an unsettled weather pattern over 
western Nebraska during the next 24 to 36 hours. Winds may be variable
at times as this storm system strengthens, but expect the prevailing 
direction this afternoon to be east to southeast. Cooler temperatures
and widespread showers and scattered thunderstorms expected 
Saturday afternoon through Sunday morning. Look for gusty and erratic
winds near any shower/thunderstorm activity, expected to begin between 
around 5PM and last through the evening. Expect lingering showers and 
gusty northwest winds into Sunday morning. 

This spot is a slight modification from the previously sent version
this morning.

.TODAY...

Sky/weather.........Mostly sunny early becoming mostly cloudy (60 to 75 
                    percent) late. Isolated showers and thunderstorms 
                    possible after 400 PM.
CWR.................7 percent. 
Max temperature.....Around 78. 
Min humidity........42 percent. 
Wind (20 ft)........Northeast 5 to 10 mph early in the afternoon 
                    shifting to the east and later southeast 5 to 10 mph. 
                    Gusty and erratic winds expected 
                    near thunderstorms late in the afternoon. 
Mixing height.......6100 ft AGL. 
Transport winds.....Northwest 7 to 9 mph shifting to the north in 
                    the late morning and early afternoon, then 
                    shifting to the east 9 to 13 mph late in the 
                    afternoon. 
Smoke dispersal.....Poor (2800 knot-ft) early in the morning 
                    increasing to fair (58000 knot-ft) in the 
                    afternoon. 

TIME (MDT)      12P 1PM 2PM 3PM 4PM 5PM 
CWR.............10  10  10  10  10  10  
Temp............73  75  76  77  76  75  
RH..............48  45  43  42  43  45  
20 FT wind dir..N   NE  E   E   E   SE  
20 FT wind spd..3   6   7   9   10  10  
20 FT wind gust.8   10  15  17  20  20  
Mix hgt (kft)...3.6 4.8 6.0 6.1 5.8 5.2 
Transp wind dir.N   NE  E   SE  SE  SE  
Transp wind spd.8   7   9   12  13  13  
SDspl kt-ft/100025  29  36  43  58  52  

.TONIGHT...

Sky/weather.........Cloudy with widespread rain showers and 
                    scattered thunderstorms in the evening. 
CWR.................74 percent decreasing to 53 percent overnight. 
Min temperature.....Around 51. 
Max humidity........100 percent. 
Wind (20 ft)........Southeast winds 5 to 10 mph shifting to the 
                    northwest 10 to 20 mph late in the evening. 
                    Gusty and erratic winds expected near 
                    thunderstorms early in the evening. 
Mixing height.......700 ft AGL. 
Transport winds.....East 12 to 13 mph shifting to the northwest 15 
                    to 18 mph late in the evening, then decreasing 
                    to 13 to 18 mph overnight. 
Smoke dispersal.....Poor (5300 knot-ft). 

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 
CWR.............70  70  70  70  70  70  50  50  50  50  50  50  
Temp............73  68  63  59  58  56  56  55  55  54  54  53  
RH..............48  59  70  83  87  93  93  96  96  96  96  96  
20 FT wind dir..SE  SE  S   SW  W   W   NW  NW  NW  NW  NW  NW  
20 FT wind spd..10  9   9   8   8   7   7   8   8   9   10  12  
20 FT wind gust.20  18  17  16  15  15  14  15  16  18  20  22  
Mix hgt (kft)...3.7 1.1 0.8 0.7 1.4 1.1 1.1 0.9 0.9 1.0 1.3 1.7 
Transp wind dir.E   E   E   W   NW  NW  NW  NW  NW  NW  NW  NW  
Transp wind spd.13  12  12  16  18  15  13  13  15  14  17  18  
SDspl kt-ft/100033  11  5   10  22  14  12  10  12  12  20  27  

$$
Forecaster...Natoli
Requested by...Megan Eckles
Type of request...PRESCRIBED
.TAG 2521907.0/CYS
.DELDT 09/13/25
.FormatterVersion 2.0.0
.EMAIL megan.eckles@nebraska.gov