587
FNUS75 KRIW 071858
FWSRIW
SPOT FORECAST FOR PINNACLES...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
1258 PM MDT FRI AUG 7 2026
FORECAST IS BASED ON FORECAST START TIME OF 1300 MDT ON AUGUST 07.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT
SUNDAY...
DISCUSSION
WEST WINDS WILL CONTINUE THROUGH THE REST OF THE DAY, SUSTAINED IN
THE 10 TO 15 MPH RANGE, WITH GUSTS AROUND 20 MPH. HUMIDITY AT
RIDGETOP FALLS TO AROUND 15 PERCENT, WITH LOWER READINGS AT LOWER
ELEVATIONS. SKY COVER REMAINS NEARLY CLEAR, EXCEPT FOR PERSISTENT
SMOKE FROM WESTERN US FIRES.
SATURDAY WILL SEE ANOTHER WINDY DAY, SLIGHTLY HIGHER THAN TODAY'S
WINDS. GUSTS WILL BE MORE FREQUENT AND REACH 25 TO 30 MPH DURING
THE AFTERNOON. HUMIDITY LEVELS WILL AGAIN FALL TO NEAR 15 PERCENT,
WITH LOWER READINGS AT LOWER ELEVATIONS. RED FLAG WARNINGS ARE IN
EFFECT FOR SATURDAY AND SUNDAY.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-5 PERCENT). AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........15 PERCENT.
WIND (20 FT)........WEST WINDS 11 TO 12 MPH WITH GUSTS TO AROUND 22
MPH.
RIDGETOP WIND.......WEST AROUND 20 MPH.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 22 MPH.
SMOKE DISPERSAL.....EXCELLENT.
TIME (MDT) 1PM 2PM 3PM 4PM 5PM
SKY (%).........0 0 0 0 0
WEATHER COV.....ARS ARS ARS ARS ARS
WEATHER TYPE....SMK SMK SMK SMK SMK
TSTM COV........
CWR.............0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0
TEMP............73 75 76 77 77
RH..............20 18 17 16 17
20 FT WIND DIR..W W W W W
20 FT WIND SPD..11 12 12 12 12
20 FT WIND GUST.20 20 21 22 21
RIDGE WIND DIR..W W W W W
RIDGE WIND SPD..20 20 20 20 20
MIX HGT (KFT)...8.0 8.5 9.0 9.0 9.5
TRANSP WIND DIR.W W W W W
TRANSP WIND SPD.21 22 21 20 21
SDSPL KT-FT/1000141 162 161 152 170
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 53.
MAX HUMIDITY........32 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 11 MPH WITH GUSTS TO AROUND 21
MPH UNTIL 2200, THEN LIGHT.
RIDGETOP WIND.......SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......9000 FT AGL UNTIL 1900. 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....WEST 13 TO 18 MPH UNTIL 0100, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR AFTER 2000.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 0 5 15 10 5 10 10 10 10 5 10
WEATHER COV.....ARS ARS ARS ARS ARS ARS ARS ARS ARS ARS ARS ARS
WEATHER TYPE....SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK
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............75 75 71 64 62 60 59 56 56 56 55 55
RH..............17 19 23 28 29 29 31 34 32 32 31 31
20 FT WIND DIR..W W W SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..11 10 7 7 6 6 6 6 6 6 6 6
20 FT WIND GUST.21 19 14 13 12 11 11 11 11 11 10 10
RIDGE WIND DIR..W W W SW SW SW SW SW SW SW SW SW
RIDGE WIND SPD..20 15 15 15 15 15 15 15 15 15 15 15
MIX HGT (KFT)...9.0 6.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W W SW SW SW SW SW SW SW SW
TRANSP WIND SPD.18 17 14 14 13 13 13 13 13 13 13 13
SDSPL KT-FT/1000146 97 9 7 6 6 7 6 6 6 6 6
SATURDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........17 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1000, THEN WEST 7 TO 13 MPH
WITH GUSTS TO AROUND 23 MPH.
RIDGETOP WIND.......WEST 10 TO 15 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1000. 11000 FT AGL AFTER
1300.
TRANSPORT WINDS.....WEST 12 TO 14 MPH UNTIL 1100, THEN 18 TO 24
MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN EXCELLENT.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 10 0 0 0 5 5 0 5 0 0 0
WEATHER COV.....ARS ARS ARS ARS ARS ARS ARS ARS ARS ARS ARS ARS
WEATHER TYPE....SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK
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 53 58 62 68 71 73 75 76 77 77 76
RH..............32 36 33 28 25 22 20 20 18 17 16 17
20 FT WIND DIR..W W SW W W W W W W W W W
20 FT WIND SPD..6 6 6 6 7 9 11 11 12 13 13 13
20 FT WIND GUST.10 10 10 11 14 17 19 21 23 23 23 23
RIDGE WIND DIR..W W SW W W W W W W W W W
RIDGE WIND SPD..15 10 10 10 15 15 20 20 20 20 20 20
MIX HGT (KFT)...0.5 0.5 0.5 1.0 4.5 7.0 8.5 9.5 10 11 11 11
TRANSP WIND DIR.SW SW W W W W W W W W W W
TRANSP WIND SPD.13 12 12 12 14 18 21 23 24 23 23 22
SDSPL KT-FT/10006 5 6 12 51 114 154 195 215 218 217 210
FORECAST DAYS 3 THROUGH 5
SUNDAY
MOSTLY CLEAR. AREAS OF SMOKE. LOWS IN THE LOWER 50S. HIGHS IN THE
MID 70S. SOUTHWEST WINDS AROUND 9 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.
SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 9 MPH.
FORECASTER...STRAUB
REQUESTED BY...TRAVIS CLARK
TYPE OF REQUEST...WILDFIRE
.TAG 2619100.1/RIW
.DELDT 08/07/26
.FORMATTERVERSION 2.0.0
.EMAIL TRAVIS.L.CLARK@USDA.GOV,WYCDC@FIRENET.GOV
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