959
FNUS75 KRIW 311114
FWSRIW
SPOT FORECAST FOR SALT PASS PILES...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
514 AM MDT FRI OCT 31 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON OCTOBER 31.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
EXPECT MILD TEMPERATURES AND DRY CONDITIONS TODAY. ANY LINGERING
HIGH CLOUDS WILL GIVE WAY TO SUNNY SKIES AFTER 0800. WIND WILL
GENERALLY BE OUT OF THE NORTH WITH GUSTS TO AROUND 12 MPH. CLOUDS
WILL INCREASE TONIGHT AND LINGER THROUGH SATURDAY MORNING. NO
PRECIPITATION IS EXPECTED THOUGH THERE MAY BE A VIRGA SHOWER IN
THE AREA SATURDAY MORNING.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 46.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........LIGHT BELOW 5 MPH BECOMING NORTH 5 TO 8 MPH
AFTER 1100 WITH GUSTS TO 12 MPH.
RIDGETOP WIND.......LIGHT WINDS UNTIL 1000, THEN NORTH 10 TO 15
MPH.
MIXING HEIGHT.......INCREASING TO 3000 FT AGL BY 1400.
TRANSPORT WINDS.....NORTHWEST 10 TO 14 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 10 5 5 5 5 10 15 15 10
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............27 29 34 39 42 43 45 45 44 42
RH..............66 64 57 53 46 44 41 42 45 52
20 FT WIND DIR..NE NE NW N N NW N N N N
20 FT WIND SPD..2 2 3 5 6 7 7 8 7 6
20 FT WIND GUST. 4 6 7 10 12 12 10 7
RIDGE WIND DIR..NE NE NW N N NW N N N N
RIDGE WIND SPD..5 5 10 10 10 15 15 15 15 10
MIX HGT (KFT)...1.5 1.0 1.5 2.0 2.5 2.5 3.0 3.0 2.5 2.0
TRANSP WIND DIR.N N NW NW NW NW NW NW NW NW
TRANSP WIND SPD.7 7 8 10 12 13 13 14 13 12
SDSPL KT-FT/10008 7 10 18 26 29 31 35 30 20
TONIGHT
SKY/WEATHER.........BECOMING MOSTLY CLOUDY (50-60 PERCENT)
AFTER MIDNIGHT.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 29.
MAX HUMIDITY........73 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH.
RIDGETOP WIND.......NORTHEAST AROUND 10 MPH BECOMING EAST AROUND
5 MPH AFTER 2200.
MIXING HEIGHT.......AROUND 1500 FT AGL.
TRANSPORT WINDS.....NORTH TO NORTHWEST AROUND 7 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........15 20 25 30 30 30 40 55 50 50 55 45
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............38 35 33 32 31 31 31 32 32 32 32 31
RH..............61 63 66 69 69 67 68 65 64 62 59 57
20 FT WIND DIR..N N NE NE NE NE E E E E E NE
20 FT WIND SPD..4 3 2 3 2 2 2 2 2 2 2 2
20 FT WIND GUST.6 4 4
RIDGE WIND DIR..N N NE NE NE NE E E E E E NE
RIDGE WIND SPD..10 10 10 10 5 5 5 5 5 5 5 5
MIX HGT (KFT)...1.5 1.0 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
TRANSP WIND DIR.NW N N N NW NW NW N W NW W W
TRANSP WIND SPD.9 8 7 8 7 7 7 7 7 7 7 7
SDSPL KT-FT/100011 8 7 9 8 8 8 8 8 8 8 8
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........41 PERCENT.
WIND (20 FT)........NORTHEAST UNDER 5 MPH BECOMING WEST TO
SOUTHWEST AROUND 5 MPH BY 1200 WITH GUSTS
TO 10 MPH.
RIDGETOP WIND.......NORTHEAST AROUND 5 MPH BECOMING WEST TO
SOUTHWEST AROUND 10 MPH BY 1200.
MIXING HEIGHT.......INCREASING TO 3000 FT AGL BY 1400.
TRANSPORT WINDS.....GENERALLY WEST 8 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........50 55 65 60 50 50 50 45 40 35 30 20
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............31 31 32 34 40 45 48 51 52 52 51 49
RH..............55 55 55 55 50 45 42 40 40 41 45 49
20 FT WIND DIR..NE NE NE NE N NW W W W W SW SW
20 FT WIND SPD..2 2 2 2 3 3 4 5 5 5 4 4
20 FT WIND GUST.4 4 4 5 6 6 7 8 10 10 10 8
RIDGE WIND DIR..NE NE NE NE N NW W W W W SW SW
RIDGE WIND SPD..5 5 5 5 10 10 10 10 10 10 10 10
MIX HGT (KFT)...1.5 1.0 1.0 1.0 1.5 2.0 2.5 2.5 3.0 3.0 2.5 2.0
TRANSP WIND DIR.W NE NE W NW W W W W W W SW
TRANSP WIND SPD.7 7 7 7 8 8 9 10 10 10 9 9
SDSPL KT-FT/10008 7 7 6 10 13 18 23 25 27 19 14
FORECAST DAYS 3 THROUGH 5
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. WEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S.
SOUTHWEST WINDS 4 TO 8 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. WEST
WINDS 4 TO 8 MPH.
FORECASTER...MYERS
REQUESTED BY...MICHAEL MCEWEN
TYPE OF REQUEST...PRESCRIBED
.TAG 2524770.0/RIW
.DELDT 10/31/25
.FORMATTERVERSION 2.0.0
.EMAIL MICHAEL.MCEWEN@USDA.GOV
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