949
FNUS75 KRIW 310026
FWSRIW
SPOT FORECAST FOR VEES...WY-WBD
NATIONAL WEATHER SERVICE RIVERTON WY
626 PM MDT WED JUL 30 2025
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON JULY 31.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
MOSTLY CLEAR THURSDAY MORNING, WITH INCREASING CLOUDS IN THE
AFTERNOON AS MORE RAIN SHOWERS AND THUNDERSTORMS DEVELOP. THE BEST
CHANCE FOR A WETTING RAIN WILL BE FROM 1800L TO MIDNIGHT.
TEMPERATURE AND RH WILL REMAIN SIMILAR ON THURSDAY COMPARED TO
TODAY. WIND DIRECTION WILL REMAIN PREDOMINANTLY EAST THROUGH
THURSDAY NIGHT.
SHOWERS AND STORMS END AFTER MIDNIGHT, WITH CLEARING SKIES
OVERNIGHT INTO FRIDAY MORNING. SHOWERS AND STORMS WILL DEVELOP
FRIDAY AFTERNOON, BUT WILL BE MORE ISOLATED. RAIN CHANCES END
QUICKLY FRIDAY EVENING. IT WILL BE NOTICEABLY DRIER ON FRIDAY AS
THE LOW- LEVEL MOISTURE EXITS THE AREA.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
THURSDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). CHANCE OF SHOWERS AND
THUNDERSTORMS BEGINNING 1400.
CWR.................3 PERCENT.
CHANCE OF PCPN......50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1300, THEN SOUTHEAST 7 TO 12
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS IN THE AFTERNOON.
RIDGETOP WIND.......EAST 10 TO 15 MPH UNTIL 0900, THEN SOUTHEAST.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000. 7000 FT AGL AFTER 1300.
TRANSPORT WINDS.....SOUTHEAST 8 TO 16 MPH UNTIL 1500, THEN 14 TO 19
MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000. GOOD EARLY IN THE MORNING
INCREASING TO VERY GOOD IN THE AFTERNOON AFTER
1400.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........30 30 25 15 10 10 10 5 10 10 20 25
WEATHER COV..... SCH CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........ SCH CHC CHC CHC
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 10 10 50 50 50
CHC OF THDR (%).0 0 0 0 0 0 0 10 10 40 40 40
TEMP............59 62 66 68 70 73 76 79 81 82 82 81
RH..............71 67 62 56 53 47 40 36 33 32 34 34
20 FT WIND DIR..E E SE S SW S SE SE SE SE SE SE
20 FT WIND SPD..6 5 3 4 4 5 5 8 9 10 9 10
20 FT WIND GUST.10 6 4 6 6 6 6 12 13 14 13 14
RIDGE WIND DIR..E E SE S SW S SE SE SE SE SE SE
RIDGE WIND SPD..15 10 10 10 10 10 10 15 15 15 15 15
MIX HGT (KFT)...0.5 0.5 1.0 1.5 2.5 3.5 4.0 5.5 6.5 6.5 7.0 6.5
TRANSP WIND DIR.E SE SE SE S SE SE SE S S SE SE
TRANSP WIND SPD.13 10 8 9 9 10 10 13 16 17 16 17
SDSPL KT-FT/10009 7 7 14 20 31 39 73 91 101 101 98
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) TO MOSTLY CLOUDY
(60-70 PERCENT) CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
CWR.................46 PERCENT DECREASING TO 0 PERCENT OVERNIGHT.
CHANCE OF PCPN......50 PERCENT.
CHANCE OF THUNDER...37 PERCENT.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........62 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 7 TO 12 MPH WITH GUSTS TO AROUND
15 MPH UNTIL 2400, THEN LIGHT. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
THE EVENING.
RIDGETOP WIND.......EAST 10 TO 15 MPH.
MIXING HEIGHT.......4500 FT AGL UNTIL 1900, THEN 500 FT AGL.
TRANSPORT WINDS.....EAST AROUND 16 MPH UNTIL 1900, THEN NORTHEAST
AROUND 18 MPH UNTIL 2000, THEN EAST 12 TO 20
MPH UNTIL 0500, THEN AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 0300.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........35 50 65 70 65 55 40 40 40 40 35 35
WEATHER COV.....CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW
TSTM COV........CHC CHC CHC CHC CHC CHC
CWR.............50 50 50 50 50 50 0 0 0 0 0 0
CHC OF PCPN (%).50 50 50 50 50 50 10 10 10 10 10 10
CHC OF THDR (%).40 40 40 30 30 30 10 10 10 0 0 0
TEMP............78 76 72 67 67 67 67 66 65 64 62 61
RH..............37 42 48 57 57 56 55 56 58 60 61 61
20 FT WIND DIR..E SE SE E E E E E E E E E
20 FT WIND SPD..9 8 8 8 7 7 6 6 6 6 6 5
20 FT WIND GUST.14 13 13 13 12 10 10 8 7 7 7 6
RIDGE WIND DIR..E SE SE E E E E E E E E E
RIDGE WIND SPD..15 15 15 15 15 15 15 15 10 10 10 10
MIX HGT (KFT)...4.5 2.0 1.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.E NE E E E E E E E E E E
TRANSP WIND SPD.16 18 15 20 20 20 18 17 13 12 12 10
SDSPL KT-FT/100065 39 19 15 14 14 14 13 10 9 9 8
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF THUNDER...34 PERCENT.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE AFTERNOON
RIDGETOP WIND.......EAST AROUND 10 MPH UNTIL 0800, THEN SOUTHWEST
UNTIL 1500, THEN NORTHWEST.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN GRADUALLY INCREASING
TO 11500 FT AGL BY 1300 UNTIL 1600, THEN DECREASING
TO 5000 FT AGL AFTER 1800.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 0800, THEN NORTHWEST
AROUND 9 MPH UNTIL 1100, THEN WEST 10 TO 12 MPH
UNTIL 1700, THEN NORTH AROUND 12 MPH.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD AFTER 1300.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........30 25 20 15 20 25 30 30 30 25 35 45
WEATHER COV..... CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 40 40 40 40 40 40
CHC OF THDR (%).0 0 0 0 0 0 20 20 20 30 30 30
TEMP............61 63 66 70 73 76 78 81 83 84 83 81
RH..............61 58 55 50 46 41 36 30 25 22 22 25
20 FT WIND DIR..E SE S SW SW W W W W W W NW
20 FT WIND SPD..5 5 4 4 4 5 5 5 5 5 6 6
20 FT WIND GUST.6 6 5 5 6 6 7 8 8 10 10 10
RIDGE WIND DIR..E SE S SW SW W W W W W W NW
RIDGE WIND SPD..10 10 10 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...0.5 1.0 1.5 1.5 2.5 3.0 4.0 6.5 9.0 12 8.5 5.0
TRANSP WIND DIR.E NE N NW W W W W W W W N
TRANSP WIND SPD.10 10 9 9 9 10 10 10 10 10 12 12
SDSPL KT-FT/10008 10 12 14 21 30 38 61 85 109 87 53
FORECAST DAYS 3 THROUGH 5
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN
THE LOWER 60S. HIGHS IN THE MID 80S. LIGHT WINDS.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 80S.
LIGHT WINDS.
MONDAY
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE UPPER 80S. LIGHT
WINDS.
FORECASTER...ROWE
REQUESTED BY...MIKE ORTNER
TYPE OF REQUEST...WILDFIRE
.TAG 2518773.2/RIW
.DELDT 07/30/25
.FORMATTERVERSION 2.0.0
.EMAIL MICHAEL.ORTNER@USDA.GOV
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