670
FNUS75 KRIW 251925
FWSRIW
SPOT FORECAST FOR SVF-2B-7/8...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
125 PM MDT TUE MAR 25 2025
FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MARCH 26.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
MAINLY CLEAR SKIES AND DRY CONDITIONS EXPECTED FOR WEDNESDAY AND
OVERNIGHT INTO THURSDAY MORNING AS WELL. ABOVE AVERAGE
TEMPERATURES AS WELL WITH AFTERNOON HIGHS INTO THE 50S AND LOWS
REMAINING ABOVE THE FREEZING MARK. GENERALLY LIGHT WINDS WITH
SOUTHERLY COMPONENTS 5 TO 10 MPH.
INCREASING CLOUDS AND WINDS THURSDAY AHEAD OF THE NEXT SYSTEM
WITH LIKELY SNOW SHOWERS OVERNIGHT INTO FRIDAY.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 52.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......LIGHT WINDS UNTIL 1200, THEN SOUTH AROUND 10
MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1400, THEN 4500 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 13 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300. POOR EARLY IN THE MORNING
INCREASING TO FAIR IN THE AFTERNOON AFTER 1500.
TIME (MDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........25 15 15 10 10 10 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0
TEMP............42 45 48 49 50 51 50
RH..............70 62 60 58 52 52 52
20 FT WIND DIR..S S S S S S SW
20 FT WIND SPD..2 3 3 3 3 3 3
20 FT WIND GUST. 4 4 4 4 4 4
RIDGE WIND DIR..S S S S S S SW
RIDGE WIND SPD..5 10 10 10 10 10 10
MIX HGT (KFT)...2.0 2.5 3.0 4.0 4.5 4.5 4.0
TRANSP WIND DIR.S S S S SW SW SW
TRANSP WIND SPD.7 8 9 12 13 12 10
SDSPL KT-FT/100012 18 25 39 49 43 34
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 35.
MAX HUMIDITY........79 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......SOUTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....SOUTH 9 TO 13 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........10 15 15 20 20 15 15 15 15 20 20 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............50 48 43 41 39 38 38 37 37 36 36 36
RH..............54 58 68 70 70 70 73 73 75 79 79 75
20 FT WIND DIR..SW S S SE SE SE SE SE SE SE SE SE
20 FT WIND SPD..6 5 4 3 3 4 5 6 6 6 6 5
20 FT WIND GUST.7 6 6 4 4 6 6 7 7 7 7 6
RIDGE WIND DIR..SW S S SE SE SE SE SE SE SE SE SE
RIDGE WIND SPD..10 10 10 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...2.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
TRANSP WIND DIR.S S SE S S S S S S S S S
TRANSP WIND SPD.12 10 9 9 9 10 10 12 12 13 13 13
SDSPL KT-FT/100026 14 13 13 13 14 14 16 16 17 17 17
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........LIGHT WINDS.
RIDGETOP WIND.......SOUTH AROUND 10 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 4500 FT AGL
UNTIL 1300, THEN 7500 FT AGL UNTIL 1500, THEN 8500 FT AGL UNTIL
1600, THEN 6500 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 14 MPH
UNTIL 1300. SOUTHWEST 21 TO 28 MPH AFTER 1500.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR UNTIL 1300, THEN
GOOD UNTIL 1400, THEN VERY GOOD UNTIL 1500, THEN EXCELLENT UNTIL
1600, THEN VERY GOOD UNTIL 1700, THEN GOOD.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 25 30 35 35 40 40 50 55 60 65 70
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 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............35 37 38 39 44 49 53 55 57 59 58 56
RH..............72 71 69 65 58 51 44 40 38 38 38 40
20 FT WIND DIR..SE SE S S S S S SW SW SW SW SW
20 FT WIND SPD..4 4 3 3 3 3 4 5 6 6 6 5
20 FT WIND GUST.7 6 6 6 7 8 10 10 10 10 10 10
RIDGE WIND DIR..SE SE S S S S S SW SW SW SW SW
RIDGE WIND SPD..10 10 10 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...1.5 1.5 1.5 1.5 2.5 3.5 4.5 6.0 7.5 8.5 6.5 5.0
TRANSP WIND DIR.S S S S S S S SW SW SW SW SW
TRANSP WIND SPD.13 12 9 8 10 12 14 18 23 28 24 21
SDSPL KT-FT/100017 16 13 11 23 36 55 95 145 207 142 87
FORECAST DAYS 3 THROUGH 5
FRIDAY
COOLER. MOSTLY CLOUDY WITH SHOWERS AND SNOW SHOWERS LIKELY. LOWS
IN THE MID 30S. HIGHS IN THE MID 40S. LIGHT WINDS.
SATURDAY
MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY AND CHANCE OF SHOWERS.
LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. LIGHT WINDS.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND SHOWERS. LOWS IN
THE MID 20S. HIGHS IN THE MID 40S. LIGHT WINDS.
FORECASTER...LOWE
REQUESTED BY...WILL HALL
TYPE OF REQUEST...PRESCRIBED
.TAG 2507836.0/RIW
.DELDT 03/25/25
.FORMATTERVERSION 2.0.0
.EMAIL WILLIAM.HALL@USDA.GOV,MICHAEL.MCEWEN@USDA.GOV
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