348
FNUS75 KRIW 091230
FWSRIW
SPOT FORECAST FOR YELLOWTAIL RX...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
630 AM MDT MON MAR 9 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON MARCH 09.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
SKIES WILL BE CLEAR THROUGH THE DAY, WITH CLOUDS FILLING IN FROM
THE NORTH AROUND SUNSET. THERE IS A 20% CHANCE THAT LOW CLOUDS/FOG
MOVES INTO THE AREA FROM THE NORTH. WINDS MAY BE VARIABLE BETWEEN
THE NORTHWEST AND SOUTH FOR THE FIRST FEW HOURS THIS MORNING AS
WELL, TURNING MORE WESTERLY BY 1100. WINDS WILL ALSO BE
INCREASING THROUGH THIS TIME, WITH GUSTS OF 15 TO 25 MPH. EXPECT
GUSTS OF 25 TO 30 MPH THROUGH THE REST OF THE DAY. WINDS TURN BACK
TO THE NORTH BY 1500, AS A COLD FRONT PUSHES THROUGH. THESE
CONDITIONS, NORTH WINDS WITH GUSTS UP 30 MPH, WILL LAST THROUGH
0300 TUESDAY MORNING. THE BEST CHANCES FOR SNOW ARE BETWEEN
0900/1000 TUESDAY ONWARD, EVEN THOUGH CURRENT FORECAST HAS SNOW
POSSIBLE BY 0500.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 9 MPH WITH GUSTS TO AROUND 16
MPH UNTIL 1100, THEN WEST 12 TO 14 MPH WITH
GUSTS TO AROUND 22 MPH UNTIL 1400, THEN NORTH
13 TO 15 MPH WITH GUSTS TO AROUND 20 MPH.
RIDGETOP WIND.......SOUTH AROUND 15 MPH UNTIL 1200, THEN WEST UNTIL
1300, THEN NORTH 25 TO 30 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1100, THEN 4500 FT AGL UNTIL
1700, THEN 2500 FT AGL.
TRANSPORT WINDS.....SOUTH 14 TO 15 MPH UNTIL 1100, THEN WEST 23 TO
26 MPH UNTIL 1400, THEN NORTHWEST 28 TO 31 MPH
UNTIL 1700, THEN NORTH AROUND 30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000. GOOD AFTER 1100.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 15 15 10 10 10 10 15 20 25
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
TEMP............40 44 50 55 59 59 59 59 56 53
RH..............65 60 50 42 34 32 30 30 32 35
20 FT WIND DIR..S S S W W W NW N N N
20 FT WIND SPD..7 7 9 12 14 14 14 13 14 15
20 FT WIND GUST.13 12 16 19 22 22 20 18 19 20
RIDGE WIND DIR..S S S S W NW N N N N
RIDGE WIND SPD..15 15 15 15 15 25 30 30 30 30
MIX HGT (KFT)...1.0 1.0 2.0 3.0 4.5 4.0 3.5 3.5 3.0 2.5
TRANSP WIND DIR.S S S SW W W NW N NW N
TRANSP WIND SPD.14 15 15 23 24 26 28 30 31 30
SDSPL KT-FT/10009 11 24 62 92 92 89 85 77 60
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT). CHANCE OF SNOW
SHOWERS EARLY IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF PCPN......30 PERCENT.
MIN TEMPERATURE.....AROUND 25.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........NORTH WINDS 9 TO 16 MPH WITH GUSTS TO AROUND 26
MPH.
RIDGETOP WIND.......NORTH 20 TO 25 MPH UNTIL 0100, THEN AROUND 15
MPH.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....NORTH 18 TO 26 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 0200, THEN POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........30 40 50 55 55 50 45 50 55 60 70 75
WEATHER COV..... CHC
WEATHER TYPE.... SW
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 10 30
TEMP............51 47 44 40 38 36 34 33 32 31 30 30
RH..............39 43 48 51 52 52 52 53 55 57 59 62
20 FT WIND DIR..N N N N N N N N N N N N
20 FT WIND SPD..15 16 16 16 15 14 13 13 12 11 10 9
20 FT WIND GUST.21 23 24 26 25 25 23 22 20 18 17 16
RIDGE WIND DIR..N N N N N N N N N N N N
RIDGE WIND SPD..25 25 25 20 20 20 20 15 15 15 15 15
MIX HGT (KFT)...2.0 2.0 2.0 2.0 2.0 2.0 2.0 1.5 1.5 1.5 1.5 1.5
TRANSP WIND DIR.NE NE N N NE NE NE NE N N N N
TRANSP WIND SPD.26 24 23 22 21 20 21 21 20 20 20 18
SDSPL KT-FT/100045 39 40 41 39 34 34 30 25 22 26 28
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SNOW
SHOWERS IN THE MORNING, THEN SNOW SHOWERS
LIKELY IN THE AFTERNOON.
CWR.................12 PERCENT.
CHANCE OF PCPN......60 PERCENT.
MAX TEMPERATURE.....AROUND 42.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........NORTH WINDS AROUND 7 MPH WITH GUSTS TO AROUND
14 MPH UNTIL 0700, THEN LIGHT UNTIL 1200, THEN
NORTH 7 TO 14 MPH WITH GUSTS TO AROUND 22 MPH.
RIDGETOP WIND.......NORTH 15 TO 20 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1300, THEN 4500 FT AGL.
TRANSPORT WINDS.....NORTH 16 TO 22 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1100. GOOD AFTER 1500.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........85 85 90 90 85 80 70 70 70 70 70 70
WEATHER COV.....CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY LKY
WEATHER TYPE....SW SW SW SW SW SW SW SW SW SW SW SW
TSTM COV........
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
CHC OF PCPN (%).40 40 40 40 40 40 60 60 60 60 60 60
TEMP............29 29 28 28 31 34 36 38 39 40 40 40
RH..............64 64 63 62 59 55 52 49 45 42 38 36
20 FT WIND DIR..N N N N N N N N N N N N
20 FT WIND SPD..7 6 6 5 6 6 7 9 11 13 14 14
20 FT WIND GUST.14 13 11 10 10 11 13 16 18 20 22 22
RIDGE WIND DIR..N N N N N N N N N N N N
RIDGE WIND SPD..15 15 15 15 15 15 15 15 20 20 20 20
MIX HGT (KFT)...2.0 2.0 2.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 4.5 4.0
TRANSP WIND DIR.N N N N N N N N N N N N
TRANSP WIND SPD.18 18 17 17 17 16 16 17 20 21 22 22
SDSPL KT-FT/100031 30 27 26 33 38 44 54 69 80 81 78
FORECAST DAYS 3 THROUGH 5
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 18. HIGHS IN
THE UPPER 40S. SOUTH WINDS 15-30 MPH.
THURSDAY
WARMER. MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN THE
LOWER 30S. HIGHS IN THE MID 60S. SOUTHWEST TO NORTHWEST WINDS
25-50 MPH.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN
THE MID 30S. HIGHS AROUND 60. WEST WINDS 20-30 MPH.
FORECASTER...LAVOIE
REQUESTED BY...SHAWN GETTINGS
TYPE OF REQUEST...PRESCRIBED
.TAG 2604492.3/RIW
.DELDT 03/09/26
.FORMATTERVERSION 2.0.0
.EMAIL SGETTINGS@BLM.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page