007
FNUS75 KCYS 181109
FWSCYS
SPOT FORECAST FOR CHADRON CREEK RX...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE CHEYENNE WY
509 AM MDT WED MAR 18 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE AT (307) 772-2227
...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MDT
SATURDAY...
DISCUSSION
CRITICAL FIRE DANGER IS EXPECTED WEDNESDAY AS AFTERNOON MINIMUM
HUMIDITY VALUES DROP INTO THE 15 TO 18 PERCENT RANGE AND GUSTY WINDS
CONTINUE. THIS MORNING, EXPECTED NORTHWESTERLY TO WESTERLY WINDS
AROUND 6 TO 10 MPH WITH GUSTS AROUND 15 TO 20 MPH. WINDS TURN WESTERLY
THIS AFTERNOON AND INCREASE TO AROUND 15 TO 20 MPH, LIKELY GUSTING
OVER 35 MPH BEFORE TURNING LIGHT AND VARIABLE FOR THE OVERNIGHT HOURS.
HUMIDITY RECOVERY WILL BE DECENT OVERNIGHT, AROUND 40 TO 45%. HOWEVER,
THURSDAY WILL FEATURE ANOTHER DAY OF CRITICAL FIRE DANGER WITH MINIMUM
HUMIDITY DROPPING BACK TO AROUND 15% AND WINDS PICKING UP AGAIN FOR
MUCH OF THE DAY. CRITICAL FIRE DANGER WILL CONTINUE THROUGH SATURDAY
EVENING, WHEN MOISTURE FINALLY RETURNS TO THE REGION BEHIND A WEAK
COLD FRONT FROM THE NORTH.
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........17 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 13 MPH.
MIXING HEIGHT.......7100 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 22 MPH SHIFTING TO THE NORTHWEST 23
TO 29 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (4800 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (94200 KNOT-FT) IN THE
AFTERNOON INCREASING TO GOOD (83500 KNOT-FT)
EARLY IN THE MORNING INCREASING TO EXCELLENT
(170700 KNOT-FT) IN THE AFTERNOON LATE IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........13 14 16 21 13 11 17 16 13 24 18 20
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............49 49 48 52 58 63 66 69 72 73 73 74
RH..............53 53 54 46 37 30 27 22 19 18 17 17
20 FT WIND DIR..W W W W W W W W W W NW NW
20 FT WIND SPD..8 7 7 8 9 12 12 12 13 13 12 12
20 FT WIND GUST.12 13 14 16 17 20 22 23 24 24 23 21
MIX HGT (KFT)...0.4 0.4 0.4 0.8 1.9 2.7 3.8 5.0 6.1 7.1 6.8 4.2
TRANSP WIND DIR.W W W W W W W W W NW NW NW
TRANSP WIND SPD.16 16 15 16 18 20 22 22 25 28 29 23
SDSPL KT-FT/10005 5 5 11 30 46 71 94 135 171 171 84
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........45 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 10 MPH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 15 MPH.
SMOKE DISPERSAL.....POOR (1800 KNOT-FT).
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........24 44 44 50 34 26 22 18 13 15 14 22
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............71 66 63 58 57 54 52 51 49 48 48 46
RH..............18 23 25 30 33 36 39 41 42 44 42 45
20 FT WIND DIR..NW NW NW NW NW W W W W W W W
20 FT WIND SPD..10 8 7 7 6 6 6 7 6 6 6 6
20 FT WIND GUST.18 15 13 12 9 10 12 12 9 10 10 10
MIX HGT (KFT)...0.8 0.4 0.4 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.3 0.3
TRANSP WIND DIR.NW NW NW NW NW N NW W W W W W
TRANSP WIND SPD.15 12 10 9 8 9 9 8 8 10 12 10
SDSPL KT-FT/100010 4 4 2 2 2 2 2 2 2 3 3
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........14 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 9 MPH.
MIXING HEIGHT.......4800 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 16 MPH INCREASING TO 13 TO 20 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (81600 KNOT-FT) IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........17 29 40 35 19 15 19 22 23 22 21 19
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............48 48 50 56 61 66 70 73 75 77 76 75
RH..............44 44 42 34 30 25 22 19 16 14 15 15
20 FT WIND DIR..W W W W W W W W W W W NW
20 FT WIND SPD..6 6 6 6 7 7 8 9 9 9 8 7
20 FT WIND GUST.9 9 9 12 13 13 15 17 17 16 16 14
MIX HGT (KFT)...0.3 0.3 0.2 0.3 1.0 1.8 2.4 3.5 4.5 4.8 3.6 1.9
TRANSP WIND DIR.W W W W W W W W W W W NW
TRANSP WIND SPD.10 8 8 8 10 13 14 16 18 20 17 13
SDSPL KT-FT/10003 2 2 2 9 19 29 50 72 82 54 21
FORECASTER...MOSE
REQUESTED BY...BEN JECH
TYPE OF REQUEST...PRESCRIBED
.TAG 2605170.3/CYS
.DELDT 03/18/26
.FORMATTERVERSION 2.0.0
.EMAIL BENJAMIN.J.JECH@USDA.GOV
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