072
FNUS75 KRIW 181202
FWSRIW
SPOT FORECAST FOR BOX CREEK FIRE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
602 AM MDT THU SEP 18 2025
FORECAST IS BASED ON FORECAST START TIME OF 0730 MDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
CLEAR SKIES THROUGH THE DAY TODAY, WITH HIGH CLOUDS MOVING OVER
THE AREA BY SUNSET THIS EVENING. WINDS WILL BE LIGHT, WITH GUSTS
AROUND 11 MPH POSSIBLE BETWEEN 1400 AND 1800. SCATTERED HIGH
CLOUDS WILL BE IN PLACE FRIDAY MORNING, BECOMING MOSTLY CLOUDY BY
1400. THERE IS LESS THAN A 10% CHANCE FOR A SHOWER TO OCCUR FRIDAY
AFTERNOON.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 56.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1100. WINDS WEST AROUND 7 MPH
AFTER 1400.
RIDGETOP WIND.......WEST 10 TO 15 MPH.
MIXING HEIGHT.......5000 FT AGL AFTER 1200.
TRANSPORT WINDS.....SOUTHWEST 9 TO 14 MPH UNTIL 1600, THEN WEST.
SMOKE DISPERSAL.....POOR UNTIL 1000. FAIR AFTER 1300.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........10 10 5 10 10 10 15 15 15 10 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0
TEMP............37 35 41 46 49 52 54 56 56 55 54
RH..............64 75 63 51 44 39 37 35 33 33 33
20 FT WIND DIR..SW SW SW W W W W W W W W
20 FT WIND SPD..4 4 4 4 5 5 6 7 7 7 7
20 FT WIND GUST.6 6 6 6 7 7 8 11 11 11 11
RIDGE WIND DIR..SW SW SW W W W W W W W W
RIDGE WIND SPD..10 10 10 10 10 10 10 15 15 15 15
MIX HGT (KFT)...0.1 0.1 0.1 1.5 2.5 3.5 4.5 4.5 5.0 5.0 4.5
TRANSP WIND DIR.SW SW SW SW W W W W W W W
TRANSP WIND SPD.9 9 9 9 10 10 12 14 14 14 14
SDSPL KT-FT/10000 0 0 11 23 31 43 54 59 59 56
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 36.
MAX HUMIDITY........60 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 7 MPH UNTIL 1900, THEN LIGHT.
RIDGETOP WIND.......WEST 10 TO 15 MPH.
MIXING HEIGHT.......3500 FT AGL UNTIL 1900.
TRANSPORT WINDS.....WEST 10 TO 14 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 1900, THEN POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........10 10 20 35 40 45 45 45 45 45 50 50
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............54 50 46 44 42 39 39 38 38 38 37 37
RH..............36 42 49 53 56 58 59 58 59 60 59 57
20 FT WIND DIR..W W W W W W W W SW SW SW SW
20 FT WIND SPD..7 6 5 5 5 6 6 6 5 5 5 5
20 FT WIND GUST.11 8 7 7 7 8 8 8 7 7 7 7
RIDGE WIND DIR..W W W W W W W W SW SW SW SW
RIDGE WIND SPD..15 10 10 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...3.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
TRANSP WIND DIR.W W NW NW NW NW NW NW W W SW W
TRANSP WIND SPD.14 12 10 10 10 12 12 12 10 10 10 10
SDSPL KT-FT/100044 1 0 0 0 0 0 0 0 0 0 0
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT) AFTER 1400.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...2 PERCENT.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........26 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1300, THEN WEST 7 TO 9 MPH
WITH GUSTS TO AROUND 14 MPH.
RIDGETOP WIND.......SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3000 FT AGL AFTER 1000 UNTIL 1200, THEN 6000 FT
AGL UNTIL 1700, THEN 4000 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 16 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000. FAIR INCREASING TO GOOD
AFTER 1300.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........55 50 35 25 25 35 45 50 60 65 65 70
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............37 36 38 44 49 53 55 56 57 57 56 54
RH..............57 58 54 46 37 31 28 27 26 26 27 28
20 FT WIND DIR..SW S S S SW SW SW SW W W W W
20 FT WIND SPD..5 5 5 5 5 6 6 7 8 9 9 9
20 FT WIND GUST.7 7 7 7 7 8 10 11 13 14 14 14
RIDGE WIND DIR..SW S S S SW SW SW SW W W W W
RIDGE WIND SPD..10 10 10 10 10 10 15 15 15 15 15 15
MIX HGT (KFT)...0.1 0.1 0.1 0.1 1.5 3.0 4.5 5.0 5.5 6.0 5.0 4.0
TRANSP WIND DIR.SW SW S SW SW W W W W W W W
TRANSP WIND SPD.10 10 10 10 10 12 13 14 15 16 16 16
SDSPL KT-FT/10000 0 0 0 14 30 50 60 70 81 70 58
FORECAST DAYS 3 THROUGH 5
SATURDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 30S. HIGHS IN THE MID 50S. WEST WINDS 15-20 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS AROUND 50. WEST WINDS
18-28 MPH.
MONDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS, THUNDERSTORMS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.
WEST-NORTHWEST WINDS 17-26 MPH.
FORECASTER...LAVOIE
REQUESTED BY...MATT ZIEGLER
TYPE OF REQUEST...WILDFIRE
.TAG 2522121.1/RIW
.DELDT 09/18/25
.FORMATTERVERSION 2.0.0
.EMAIL NICHOLASHAYCOCK6@GMAIL.COM,WYTDC@FIRENET.GOV
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