798
FNUS75 KRIW 101231
FWSRIW
SPOT FORECAST FOR HAMS FORK RX UNIT 8/6...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
631 AM MDT WED JUN 10 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON JUNE 10.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
DRY CONDITIONS EXPECTED TODAY WITH PARTLY CLOUDY SKIES THROUGHOUT
(15-25%). TEMPERATURES SIMILAR AS YESTERDAY WITH MINIMUM RELATIVE
HUMIDITY VALUES DOWN TO THE 30 TO 35 PERCENT RANGE. WINDS WILL
INCREASE FROM THE WEST AFTER 0800 WITH GUSTS UP TO 25MPH, PEAKING
AT 35 MPH DURING THE AFTERNOON BETWEEN 1200-1900L. WINDS THEN
SLOWLY DIMINISH BECOMING LESS THAN 10 MPH AFTER 2100L. THEREFORE,
SMOKE DISPERSAL WILL BE GOOD DURING THE MORNING HOURS BECOMING
EXCELLENT WITH THE STRONGER WINDS BEFORE BECOMING FAIR OVERNIGHT
INTO THURSDAY MORNING. SIMILAR CONDITIONS THURSDAY WITH A BIT LESS
WINDS AND A BIT WARMER TEMPERATURES.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........31 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 0800, THEN WEST 9 TO 17 MPH
WITH GUSTS TO AROUND 25 MPH.
RIDGETOP WIND.......SOUTHWEST 10 TO 15 MPH UNTIL 0900, THEN WEST 20
TO 25 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 0900. 8500 FT AGL AFTER 1300.
TRANSPORT WINDS.....WEST 10 TO 17 MPH UNTIL 0900. 25 TO 35 MPH
THERE AFTER.
SMOKE DISPERSAL.....GOOD UNTIL 0900. EXCELLENT THERE AFTER.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........10 15 20 20 20 15 20 25 30 30
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0
TEMP............41 45 47 49 51 51 53 53 53 53
RH..............59 47 43 40 37 36 33 32 33 32
20 FT WIND DIR..W W W W W W W W W W
20 FT WIND SPD..9 12 13 14 14 15 16 16 17 17
20 FT WIND GUST.13 17 18 19 19 20 22 22 23 25
RIDGE WIND DIR..W W W W W W W W W W
RIDGE WIND SPD..15 20 20 20 20 25 25 25 25 25
MIX HGT (KFT)...2.0 5.0 5.0 6.0 6.5 7.0 7.5 8.0 8.5 8.0
TRANSP WIND DIR.W W W W W W W W W W
TRANSP WIND SPD.17 23 24 26 31 36 37 39 41 40
SDSPL KT-FT/100031 95 109 135 171 212 233 267 298 279
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 32.
MAX HUMIDITY........63 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 11 TO 18 MPH WITH GUSTS TO
AROUND 26 MPH UNTIL 2100, THEN LIGHT.
RIDGETOP WIND.......WEST 25 TO 30 MPH UNTIL 2100, THEN NORTH AROUND 10 MPH.
MIXING HEIGHT.......5500 FT AGL UNTIL 2000. 500 FT AGL AFTER 2100.
TRANSPORT WINDS.....WEST 25 TO 35 MPH UNTIL 2100, THEN NORTHWEST 18
TO 26 MPH UNTIL 2400, THEN NORTH 9 TO 13 MPH.
SMOKE DISPERSAL.....EXCELLENT UNTIL 2100. FAIR AFTER 2100.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........30 50 30 25 20 25 10 5 5 5 10 5
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............50 48 48 45 43 41 39 37 36 35 34 33
RH..............34 35 38 41 45 48 52 55 56 59 61 63
20 FT WIND DIR..W W W W NW NW N N N N NE NE
20 FT WIND SPD..17 17 18 17 15 11 6 6 5 5 5 4
20 FT WIND GUST.23 25 26 25 20 16 10 7 6 6 6 6
RIDGE WIND DIR..W W W W NW NW N N N N NE NE
RIDGE WIND SPD..25 25 30 25 25 20 15 10 10 10 10 10
MIX HGT (KFT)...7.0 5.5 4.0 1.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W NW NW N N N N N N N
TRANSP WIND SPD.38 35 31 26 23 18 13 13 12 12 10 9
SDSPL KT-FT/1000231 165 111 22 16 9 6 6 5 5 5 4
THURSDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........26 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......NORTHEAST AROUND 10 MPH UNTIL 0900,
THEN WEST 10 TO 15 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 0900. 6000 FT AGL AFTER 1300.
TRANSPORT WINDS.....NORTH 7 TO 8 MPH UNTIL 1000, THEN WEST 9 TO 16
MPH.
SMOKE DISPERSAL.....FAIR UNTIL 0900. GOOD THERE AFTER.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 10 5 5 0 0 0 5 10 5 10 10
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............32 35 39 42 47 50 53 56 59 60 60 61
RH..............63 57 51 48 43 41 36 32 30 27 27 26
20 FT WIND DIR..NE SW W W W W W W W W W W
20 FT WIND SPD..3 3 2 3 4 5 5 6 6 6 6 6
20 FT WIND GUST.4 4 4 6 6 6 7 10 10 10 10
RIDGE WIND DIR..NE SW W W W W W W W W W W
RIDGE WIND SPD..10 10 5 10 10 10 10 10 15 15 15 15
MIX HGT (KFT)...0.5 0.5 1.5 2.0 3.0 3.5 4.0 5.0 6.0 5.5 6.0 6.0
TRANSP WIND DIR.N N N NW NW NW W NW W W W W
TRANSP WIND SPD.8 8 7 8 9 10 10 14 15 13 16 16
SDSPL KT-FT/10004 4 8 15 22 31 35 62 75 63 86 84
FORECAST DAYS 3 THROUGH 5
FRIDAY
CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S. LIGHT WINDS.
SATURDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. LIGHT WINDS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
NORTHWEST WINDS AROUND 7 MPH.
FORECASTER...LOWE
REQUESTED BY...GREG GAMERTSFELDER
TYPE OF REQUEST...PRESCRIBED
.TAG 2615181.1/RIW
.DELDT 06/10/26
.FORMATTERVERSION 2.0.0
.EMAIL GREG.GAMERTSFELDER@USDA.GOV
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