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
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