550
FNUS73 KUNR 082330
FWSUNR
SPOT FORECAST FOR COAL CREEK 2...CASPER DISPATCH
NATIONAL WEATHER SERVICE RAPID CITY SD
530 PM MDT MON JUN 8 2026
FORECAST IS BASED ON FORECAST START TIME OF 1700 MDT ON JUNE 08.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
DRY TONIGHT WITH INCREASING CLOUD COVER. GUSTY SOUTH TO
SOUTHEAST WINDS AT 15 TO 25 MPH, GUSTING TO AROUND 33 MPH. GOOD
HUMIDITY RECOVERY WITH MAXIMUM HUMIDITIES OF AROUND 70% REACHED BY
DAWN.
DRY AND VERY WARM TOMORROW WITH NEAR CRITICAL TO CRITICAL FIRE
WEATHER CONDITIONS. AFTERNOON TEMPERATURES WILL CLIMB INTO THE
UPPER 80S WITH HUMIDITIES DROPPING TO AROUND 16 PERCENT. WINDS IN
THE MORNING WILL BE SOUTHERLY AT AROUND 20 MPH, GUSTING TO 30.
WINDS WILL SHIFT TO THE SOUTHWEST BY ~10-11 AM WITH SUSTAINED
WINDS OF 20 MPH, GUSTING TO 35 MPH. AN ISOLATED SHOWER OR STORM
CAN'T BE RULED OUT TUESDAY AFTERNOON. ANY SHOWERS/STORMS WILL
PRODUCE GUSTY AND ERRATIC WINDS AND BE ACCOMPANIED BY LITTLE TO NO
PRECIPITATION.
WINDS WILL SHIFT TO THE WEST TUESDAY EVENING AS A COLD FRONT
APPROACHES THE AREA. THE FRONT MAY BE ACCOMPANIED BY A FEW SHOWERS
WITH ANY SHOWERS PRODUCING GUSTY AND ERRATIC WINDS. WINDS WILL
SHIFT TO THE NORTHWEST AFTER ~10 TO 11 PM AND DIMINISH IN STRENGTH
TO 5 TO 10 MPH, GUSTING TO AROUND 15 MPH. GOOD HUMIDITY RECOVERY
OVERNIGHT TUESDAY WITH MAXIMUM HUMIDITIES OF AROUND 80 TO 85%.
COOLER ON WEDNESDAY WITH A CHANCE (20-30%) FOR SHOWERS IN THE
AFTERNOON. WINDS WILL BE BREEZY OUT OF THE WEST TO NORTHWEST AT 10
TO 15 MPH, GUSTING TO 25 MPH. HIGH TEMPERATURES ON WEDNESDAY WILL
BE IN THE LOW 70S WITH AFTERNOON HUMIDITIES EXPECTED TO DROP TO
25 TO 30%.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT).
MIN TEMPERATURE.....AROUND 57.
MAX HUMIDITY........69 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO
AROUND 33 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......600 TO 1100 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 25 TO 35 MPH INCREASING TO 30 TO 40
MPH LATE IN THE EVENING.
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 (%).........39 44 31 29 29 29 34 50 53 54 55 62
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............81 79 75 72 69 66 66 65 64 62 61 61
RH..............22 27 32 36 40 43 45 50 54 60 65 62
20 FT WIND DIR..SE SE SE SE SE SE S S S S S S
20 FT WIND SPD..14 16 18 20 21 21 21 22 22 21 21 20
20 FT WIND GUST.24 29 32 31 33 30 30 30 30 30 30 28
MIX HGT (KFT)...6.9 3.3 1.5 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6
TRANSP WIND DIR.S S SE SE SE SE SE SE S S S S
TRANSP WIND SPD.24 26 29 30 33 35 36 36 35 33 31 29
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). AN ISOLATED SHOWER/STORM
OR TWO CAN'T BE RULED OUT IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........16 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 20 MPH WITH GUSTS TO AROUND
28 MPH SHIFTING TO THE SOUTHWEST WITH GUSTS TO
AROUND 30 TO 35 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......9500 TO 10000 FT AGL INCREASING TO 13000 TO
13500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 30 TO 40 MPH SHIFTING TO THE SOUTHWEST 35
TO 40 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT LATE IN THE
MORNING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........73 75 85 83 78 70 68 73 76 76 83 74
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............59 66 68 74 80 82 84 85 85 84 84 81
RH..............69 52 47 34 24 19 17 16 17 18 19 22
20 FT WIND DIR..S S S S SW SW SW SW SW SW SW W
20 FT WIND SPD..20 20 18 18 20 21 21 20 18 17 17 15
20 FT WIND GUST.26 26 26 28 30 33 36 33 32 31 30 29
MIX HGT (KFT)...0.6 0.9 1.4 1.9 3.8 10 13 13 13 14 11 7.8
TRANSP WIND DIR.S S S S SW SW SW SW SW SW SW W
TRANSP WIND SPD.28 28 29 31 33 37 38 40 40 39 38 35
FORECASTER...EW
REQUESTED BY...HALEY DIBBLE
TYPE OF REQUEST...WILDFIRE
.TAG 2615193.0/UNR
.DELDT 06/08/26
.FORMATTERVERSION 2.0.0
.EMAIL WYCPC@FIRENET.GOV
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