083
FNUS73 KUNR 200007
FWSUNR
SPOT FORECAST FOR COAL CREEK 2...CC EM & HS
NATIONAL WEATHER SERVICE RAPID CITY SD
607 PM MDT WED AUG 19 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON AUGUST 19.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS WILL CONTINUE OUT OF THE NW FOR THE NEXT FEW
HOURS, WITH GUSTS UP TO 20 MPH POSSIBLE. WINDS WILL BECOME LIGHT
AND VARIABLE AROUND 8 PM MDT. DRY CONDITIONS ARE EXPECTED THROUGH
THE FORECAST PERIOD. RH WILL DECREASE TO BELOW 20 PERCENT DURING
THE AFTERNOONS. WINDS WILL MOSTLY BE FROM THE W-TO-N DURING THE
DAY AND FROM THE SOUTH OVERNIGHT, BUT WIND SPEEDS WILL BE LIGHT
THROUGH THURSDAY. FRIDAY AFTERNOON WINDS WILL INCREASE, DIRECTION
WILL BE FROM THE NORTH, AND GUSTS OF 20 MPH ARE EXPECTED.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........53 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 22
MPH DECREASING TO AROUND 5 MPH LATE IN THE
EVENING, THEN STAYING VARIABLE AT 5 MPH THROUGH
THE NIGHT.
CWR.................0 PERCENT.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH BECOMING NORTH 5 TO 10
MPH EARLY IN THE EVENING, THEN SHIFTING TO THE
SOUTHEAST LATE IN THE EVENING SHIFTING TO THE
SOUTHWEST OVERNIGHT.
SMOKE DISPERSAL.....GOOD DECREASING TO POOR EARLY IN THE EVENING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........2 4 11 26 29 27 30 32 29 20 19 16
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............88 86 81 75 71 69 67 65 63 61 59 58
RH..............17 19 22 26 30 33 37 41 44 48 51 53
20 FT WIND DIR..NW N N N NE SE SE S S SW S S
20 FT WIND SPD..9 7 5 2 1 1 2 2 2 2 2 2
20 FT WIND GUST.22 16 9 6 6 5 6 6 6 7 7 7
MIX HGT (KFT)...9.4 5.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4
TRANSP WIND DIR.NW NW NW N N E SE SE S SW SW SW
TRANSP WIND SPD.21 16 10 6 5 6 7 6 6 6 6 6
THURSDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........13 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH, THEN SHIFTING TO
THE SOUTH WITH GUSTS TO AROUND 10 MPH LATE IN
THE MORNING, THEN SHIFTING TO THE WEST WITH
GUSTS TO AROUND 13 MPH EARLY IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......9500 TO 10000 FT AGL INCREASING TO 10800 TO
11300 FT AGL LATE IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE
NORTHWEST 15 TO 20 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT LATE IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........13 22 11 7 6 7 10 10 4 6 9 12
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............58 61 67 73 79 83 87 89 91 93 93 93
RH..............53 50 42 34 28 23 18 16 14 13 13 13
20 FT WIND DIR..S S S SW SW S S W W NW NW N
20 FT WIND SPD..3 3 3 5 5 3 3 3 3 5 5 5
20 FT WIND GUST.7 8 8 9 9 9 10 12 13 14 14 14
MIX HGT (KFT)...0.4 0.4 0.3 0.8 2.3 4.7 7.3 8.6 10 11 11 10
TRANSP WIND DIR.SW SW SW SW SW W W W W W NW NW
TRANSP WIND SPD.6 7 8 8 8 8 8 10 14 16 16 15
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (25-60 PERCENT).
MIN TEMPERATURE.....AROUND 62.
MAX HUMIDITY........52 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 14 MPH SHIFTING TO THE NORTHEAST WITH
GUSTS TO AROUND 10 MPH EARLY IN THE EVENING,
THEN SHIFTING TO THE SOUTHEAST EARLY IN THE MORNING.
CWR.................0 PERCENT.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE
NORTHEAST EARLY IN THE EVENING, THEN SHIFTING
TO THE SOUTHEAST LATE IN THE EVENING SHIFTING
TO THE SOUTH AFTER 3 AM.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 9 13 31 41 46 67 63 58 49 53 44
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............92 89 84 79 75 73 71 69 67 65 63 62
RH..............13 17 20 24 27 30 34 37 40 45 48 52
20 FT WIND DIR..NW N NE E E E SE SE S S S S
20 FT WIND SPD..6 3 3 3 5 5 3 3 3 5 5 5
20 FT WIND GUST.14 10 9 9 10 10 9 9 9 9 10 10
MIX HGT (KFT)...9.5 6.4 3.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.NW N NE E E SE SE SE S S S S
TRANSP WIND SPD.14 13 12 12 12 12 13 13 13 13 13 13
FRIDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....AROUND 94.
MIN HUMIDITY........15 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH THEN SHIFTING TO
THE NORTHWEST WITH GUSTS TO AROUND 17 MPH LATE
IN THE MORNING SHIFTING TO THE NORTH WITH GUSTS
TO AROUND 23 MPH LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......9000 TO 9500 FT AGL INCREASING TO 10400 TO
10900 FT AGL LATE IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH SHIFTING TO THE NORTHWEST
15 TO 25 MPH LATE IN THE MORNING, THEN SHIFTING
TO THE NORTH AROUND 25 MPH LATE IN THE
AFTERNOON.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........36 33 31 29 28 27 26 23 21 18 15 12
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............63 65 70 76 81 85 89 93 94 94 94 94
RH..............50 48 42 34 28 24 19 17 15 15 15 15
20 FT WIND DIR..S S S S SW NW N N N N N N
20 FT WIND SPD..5 3 3 3 5 6 7 8 9 10 12 13
20 FT WIND GUST.10 9 9 9 10 13 15 17 20 22 23 23
MIX HGT (KFT)...0.5 0.6 0.7 0.8 2.8 4.7 6.7 8.1 9.5 11 10 9.3
TRANSP WIND DIR.S S S S SW W NW NW NW NW NW N
TRANSP WIND SPD.13 14 14 15 14 13 13 15 17 20 21 21
FORECASTER...BS
REQUESTED BY...J MITCHELL
TYPE OF REQUEST...WILDFIRE
.TAG 2620043.0/UNR
.DELDT 08/19/26
.FORMATTERVERSION 2.0.0
.EMAIL JIMM@CAMPBELLCOFIREWY.GOV
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