121
FNUS75 KCYS 201108
FWSCYS
SPOT FORECAST FOR CHADRON CREEK RX...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE CHEYENNE WY
508 AM MDT FRI MAR 20 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT SATURDAY
DISCUSSION
LIGHTER WINDS EXPECTED THURSDAY AFTERNOON AS PRESSURE
GRADIENTS ACROSS THE REGION TEMPORARILY RELAX. HOWEVER, IT WILL STILL
BE VERY DRY WEATHER RECORD HIGH TEMPERATURES EXPECTED. A RED FLAG
WARNING REMAINS IN EFFECT THROUGH SATURDAY. ALL-TIME RECORD HIGH
TEMPERATURES FOR THE MONTH OF MARCH EXPECTED ON SATURDAY WITH BREEZY
CONDITIONS.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....79 TO 83 DEGREES.
MIN HUMIDITY........11 TO 15 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH. HIGHER GUSTS POSSIBLE.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 16 MPH INCREASING TO 20 TO 25 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO VERY GOOD (102200 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........19 19 19 31 31 31 33 33 33 32 32 32
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............49 46 51 56 64 68 71 74 77 79 80 81
RH..............39 43 37 34 27 22 20 18 16 14 13 12
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..5 6 6 7 7 7 8 9 9 9 9 8
20 FT WIND GUST.9 10 12 13 14 15 16 17 18 18 17 16
MIX HGT (KFT)...0.3 0.3 0.3 0.4 1.1 2.1 3.4 4.5 6.0 7.0 6.5 5.4
TRANSP WIND DIR.W W W W NW NW W W W W W W
TRANSP WIND SPD.9 12 10 9 9 8 12 16 20 23 22 21
SDSPL KT-FT/10003 3 3 3 9 15 34 64 102 141 123 98
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....45 TO 50 DEGREES.
MAX HUMIDITY........25 TO 40 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 9 MPH SHIFTING TO THE SOUTHWEST
AROUND 10 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 10 MPH SHIFTING TO THE SOUTHWEST 9 TO
14 MPH OVERNIGHT.
SMOKE DISPERSAL.....POOR (2100 KNOT-FT).
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........28 28 28 18 18 18 11 11 11 9 9 9
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............79 73 70 63 61 59 58 56 54 53 52 51
RH..............14 17 18 24 25 27 28 29 30 31 31 30
20 FT WIND DIR..W W W W W W SW SW SW SW SW SW
20 FT WIND SPD..7 7 7 6 6 5 5 5 6 6 6 7
20 FT WIND GUST.14 13 12 10 10 9 9 9 9 10 12 13
MIX HGT (KFT)...0.6 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.3 0.3
TRANSP WIND DIR.W W W W W W SW SW SW SW SW S
TRANSP WIND SPD.10 8 8 10 9 9 8 9 9 12 13 14
SDSPL KT-FT/10005 3 3 3 3 3 2 2 2 2 3 4
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....85 TO 90 DEGREES.
MIN HUMIDITY........9 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 15 MPH WITH GUSTS OF 25 TO 30
MPH IN THE AFTERNOON.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 14 MPH INCREASING TO WEST 20 TO
30 MPH.
SMOKE DISPERSAL.....POOR (3600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (46600 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........8 8 8 11 11 11 18 18 18 29 29 29
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............53 55 57 65 70 76 82 85 87 90 89 88
RH..............28 29 28 23 19 16 13 11 10 9 9 9
20 FT WIND DIR..SW SW SW SW SW W W W W W W W
20 FT WIND SPD..7 7 7 8 9 9 10 12 12 13 12 12
20 FT WIND GUST.14 14 15 16 17 18 21 23 25 26 28 28
MIX HGT (KFT)...0.3 0.4 0.3 0.5 0.9 1.6 2.9 5.6 8.3 9.5 7.5 4.1
TRANSP WIND DIR.SW SW W W W W W W W W W W
TRANSP WIND SPD.14 14 13 13 14 16 18 22 25 28 25 22
SDSPL KT-FT/10004 4 4 5 10 23 47 106 182 228 164 78
REQUESTED BY...BEN JECH
TYPE OF REQUEST...PRESCRIBED
.TAG 2605170.5/CYS
.DELDT 03/20/26
.FORMATTERVERSION 2.0.0
.EMAIL BENJAMIN.J.JECH@USDA.GOV
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