866
FNUS75 KCYS 132303
FWSCYS
SPOT FORECAST FOR NEBRASKA FIRE ACADEMY...NEMA
NATIONAL WEATHER SERVICE CHEYENNE WY
503 PM MDT SAT SEP 13 2025
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
DISCUSSION
AREAS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE
THROUGH THIS EVENING AND MOVE ACROSS THE REGION. WHILE THERE IS A
MARGINAL CHANCE SOME OF THESE COULD BE STRONG TO SEVERE, THE
EXPECTATION IS THAT THE MAJORITY OF ACTIVITY WILL BE OF THE
GENERAL NATURE IN REGARDS TO THUNDERSTORM ACTIVITY WITH OCCASIONAL
LIGHTNING ALONGSIDE GUSTY, ERRATIC WINDS. ANY SHOWERS OR STORMS
THAT DO MOVE NEAR THE SITE THOUGH COULD PRODUCE THIS ACTIVITY,
INCLUDING IF THEY DON'T MOVE DIRECTLY OVER. EXPECT A WESTERLY FLOW
FOR SUNDAY, WITH WINDS SHIFTING FROM A NORTHWESTERLY COMPONENT TO
A SOUTHWESTERLY COMPONENT THROUGH THE DAY. TEMPERATURES WILL BE
NOTABLY COOLER, WITH A CHANCE OF LINGERING PRECIPITATION THROUGH
THE MORNING BEFORE ACTIVITY EXITS INTO THE AFTERNOON.
TONIGHT
CWR.................74 PERCENT DECREASING TO 44 PERCENT OVERNIGHT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........EAST WINDS AROUND 6 MPH SHIFTING TO THE
NORTHWEST 6 TO 10 MPH EARLY IN THE EVENING.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
MIXING HEIGHT.......600 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.....FAIR (40200 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (7600 KNOT-FT) LATE IN THE
NIGHT.
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P
CWR.............70 70 70 70 70 70 40 40 40 40 40 40
TEMP............73 69 62 60 59 57 56 56 55 55 54 53
RH..............49 59 78 87 90 93 96 93 96 96 100 100
20 FT WIND DIR..E NE NW W W NW NW NW NW NW NW NW
20 FT WIND SPD..6 6 6 6 6 6 6 7 7 8 9 10
20 FT WIND GUST.10 10 10 10 9 9 10 12 13 15 17 18
MIX HGT (KFT)...2.0 1.0 0.7 0.6 1.0 0.9 1.2 1.1 1.2 1.3 0.7 0.6
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/100040 11 8 10 22 14 12 10 12 12 20 27
SUNDAY
CWR.................21 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........58 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 7 TO 12 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 17 TO 26 MPH DECREASING TO 10 TO 14
MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (17000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (40100 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
TEMP............53 52 54 55 58 60 60 62 63 65 66 65
RH..............100 100 100 96 87 81 78 72 67 60 58 60
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..12 12 12 12 12 12 12 12 10 9 8 7
20 FT WIND GUST.20 21 21 20 21 21 20 20 18 17 14 12
MIX HGT (KFT)...0.8 1.0 1.1 1.5 2.0 2.5 2.4 2.9 3.2 3.8 4.5 3.1
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW W
TRANSP WIND SPD.22 26 25 24 23 22 22 21 20 17 14 10
SDSPL KT-FT/100030 35 35 34 36 36 37 39 40 36 27 17
SUNDAY NIGHT
CWR.................1 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 6 MPH SHIFTING TO THE
SOUTHWEST 6 TO 10 MPH EARLY IN THE EVENING.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 21 MPH SHIFTING TO THE SOUTHWEST
AROUND 20 MPH AFTER 3 AM.
SMOKE DISPERSAL.....POOR (3200 KNOT-FT).
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............63 61 56 54 54 54 54 53 52 52 52 51
RH..............67 72 86 93 90 90 86 86 86 83 77 77
20 FT WIND DIR..NW W SW S S S S S SW SW SW SW
20 FT WIND SPD..6 6 6 7 7 7 8 9 9 10 10 10
20 FT WIND GUST.10 10 10 12 13 14 15 16 17 18 18 18
MIX HGT (KFT)...1.0 0.3 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.5 0.6
TRANSP WIND DIR.S S S S S S S SW SW SW SW W
TRANSP WIND SPD.12 12 14 17 18 20 21 21 21 20 20 20
SDSPL KT-FT/100011 3 5 6 7 8 9 8 8 7 7 7
FORECASTER...GOATLEY
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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