027
FNUS75 KRIW 121211
FWSRIW
SPOT FORECAST FOR PHILLIPS PILE RX...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
611 AM MDT THU MAR 12 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON MARCH 12.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
SOME LIGHT SNOW SHOWERS THIS MORNING WILL CHANGE OVER TO RAIN BY
LATE MORNING AND BECOMING MORE LIKELY AFTER 4PM LATE THIS
AFTERNOON (>80%). MOSTLY CLOUDY SKIES AND SEASONABLE TEMPERATURES
WITH HIGH MINIMUM RELATIVE HUMIDITY VALUES IN THE AFTERNOON HOURS.
WINDS WILL BE THE MAIN DETERRENT FOR BURNING TODAY AS GUSTS PUSH
OVER 25 TO 30 MPH BY MID MORNING (9-10AM) PEAKING IN THE AFTERNOON
AT 35-45MPH AFTER 12-1PM OUT OF THE SOUTHWEST. WINDS DIMINISH TO
20 TO 25 MPH GUSTS AFTER SUNSET AROUND 6-7PM REMAINING ELEVATED
THROUGH THE OVERNIGHT HOURS INTO FRIDAY MORNING. THIS WILL BE THE
PEAK WINDS FOR FRIDAY AS THEY SLOWLY DIMINISH THROUGHOUT THE DAY.
AS A RESULT, SMOKE DISPERSAL WILL BE GOOD TO EXCELLENT WITH THE
HIGHER WIND SPEEDS THURSDAY. BURNING OF ANY KIND IS HIGHLY
DISCOURAGE FOR TODAY.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SNOW
SHOWERS IN THE MORNING AND EARLY AFTERNOON.
CHANCE OF RAIN SHOWERS LATE IN THE MORNING,
THEN RAIN SHOWERS LIKELY LATE IN THE AFTERNOON.
CWR.................6 PERCENT.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
MAX TEMPERATURE.....AROUND 44.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 16 MPH. GUSTS UP TO 29
MPH INCREASING TO 32 MPH IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHWEST 15 TO 20 MPH UNTIL 1100, THEN 20 TO
25 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 5500 FT AGL UNTIL
1700, THEN 3500 FT AGL.
TRANSPORT WINDS.....WEST 22 TO 26 MPH UNTIL 1100, THEN 32 TO 37 MPH
UNTIL 1700, THEN AROUND 26 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN FAIR UNTIL 1100, THEN
VERY GOOD EARLY IN THE MORNING INCREASING TO
EXCELLENT IN THE AFTERNOON UNTIL 1700, THEN
GOOD.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........75 80 80 80 80 80 75 75 75 80 85
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY
WEATHER TYPE....SW SW SW SW RS RS RS RW RW RW RW
TSTM COV........
CWR.............0 0 0 0 0 10 10 10 10 10 10
CHC OF PCPN (%).40 40 50 40 40 40 40 60 60 70 60
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0
TEMP............33 33 34 36 38 39 42 43 44 44 44
RH..............75 78 75 67 62 59 57 55 53 55 55
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..10 11 11 14 15 15 16 16 15 14 13
20 FT WIND GUST.17 18 18 21 23 23 26 25 24 22 21
RIDGE WIND DIR..SW SW SW SW SW SW SW SW SW SW SW
RIDGE WIND SPD..15 20 20 20 25 25 25 25 25 20 20
MIX HGT (KFT)...1.5 1.5 1.5 2.5 4.5 5.0 5.0 5.0 5.5 5.0 3.5
TRANSP WIND DIR.W W W W W W W W W W W
TRANSP WIND SPD.22 23 24 26 32 37 37 37 35 32 26
SDSPL KT-FT/100026 28 32 59 121 158 161 160 163 140 84
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). RAIN SHOWERS AND
SNOW SHOWERS LIKELY.
CWR.................21 PERCENT.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
MIN TEMPERATURE.....AROUND 38.
MAX HUMIDITY........72 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 11 TO 14 MPH WITH GUSTS TO
AROUND 22 MPH.
RIDGETOP WIND.......SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....WEST 21 TO 26 MPH.
SMOKE DISPERSAL.....GOOD EARLY IN THE EVENING DECREASING TO FAIR
LATE IN THE NIGHT UNTIL 2000, THEN POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........85 90 90 90 85 85 80 85 85 90 85 85
WEATHER COV.....LKY LKY LKY LKY LKY LKY CHC CHC CHC LKY LKY LKY
WEATHER TYPE....RW RW RS RS RS RS RS RS RS RS RS RS
TSTM COV........
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
CHC OF PCPN (%).60 60 60 70 60 60 50 50 50 60 60 60
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............43 42 41 40 40 39 39 39 38 38 38 38
RH..............57 55 59 62 62 62 62 65 67 70 70 71
20 FT WIND DIR..W W W W W W W SW SW W SW SW
20 FT WIND SPD..13 14 13 14 14 12 11 11 11 11 11 11
20 FT WIND GUST.21 21 20 21 22 19 18 18 18 18 18 18
RIDGE WIND DIR..W W W W W W W SW SW W SW SW
RIDGE WIND SPD..20 20 20 20 20 20 20 20 20 20 20 20
MIX HGT (KFT)...3.0 2.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.26 25 24 24 23 22 21 22 22 21 22 22
SDSPL KT-FT/100063 46 29 29 28 26 26 27 26 26 27 27
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SNOW SHOWERS
LIKELY IN THE MORNING AND EARLY AFTERNOON. RAIN
SHOWERS LIKELY THROUGH THE DAY.
CWR.................26 PERCENT INCREASING TO 40 PERCENT IN THE
AFTERNOON.
CHANCE OF PCPN......70 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........51 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 14 MPH WITH GUSTS TO
AROUND 22 MPH.
RIDGETOP WIND.......SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1000, THEN 5500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 22 TO 31 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0800. GOOD EARLY IN THE MORNING
INCREASING TO VERY GOOD IN THE AFTERNOON AFTER
1200.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80 80 75 70 75 75 75 80 80 80 80 80
WEATHER COV.....LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY
WEATHER TYPE....RS RS RS RS RS RS RS RS RS RW RW RW
TSTM COV........
CWR.............30 30 30 30 30 30 40 40 40 40 40 40
CHC OF PCPN (%).60 60 60 60 60 60 70 70 70 70 70 70
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............38 38 38 38 39 40 41 43 44 45 46 46
RH..............71 71 72 72 69 65 61 58 54 51 51 51
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..10 10 10 10 10 11 11 12 13 14 14 14
20 FT WIND GUST.17 17 17 17 17 18 18 19 21 22 22 20
RIDGE WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
RIDGE WIND SPD..15 15 15 15 15 20 20 20 20 20 20 20
MIX HGT (KFT)...1.5 1.5 1.5 3.0 4.0 4.0 4.5 5.0 5.0 5.5 4.5 4.0
TRANSP WIND DIR.W W W W W W SW SW SW SW SW W
TRANSP WIND SPD.22 24 25 25 29 30 31 31 31 31 30 29
SDSPL KT-FT/100026 35 38 71 95 109 124 130 136 142 120 100
FORECAST DAYS 3 THROUGH 5
SATURDAY
SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 30S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS AROUND
9 MPH.
SUNDAY
MOSTLY CLOUDY. SNOW SHOWERS. LOWS AROUND 13. HIGHS IN THE MID
30S. LIGHT WINDS.
MONDAY
NOT AS COOL. MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS AROUND 20. HIGHS IN THE MID 40S. LIGHT WINDS.
FORECASTER...LOWE
REQUESTED BY...JACKSON AMEDEN
TYPE OF REQUEST...PRESCRIBED
.TAG 2605455.0/RIW
.DELDT 03/12/26
.FORMATTERVERSION 2.0.0
.EMAIL JACKSON.AMEDEN@USDA.GOV
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