836
FNUS75 KRIW 012029
FWSRIW
SPOT FORECAST FOR WAPITI...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE RIVERTON WY
229 PM MDT WED JUL 1 2026
FORECAST IS BASED ON FORECAST START TIME OF 1600 MDT ON JULY 01.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS THE AREA THIS
AFTERNOON AND EVENING WITH CHANCES RANGING FROM 20 TO 40%. THE
MAIN CONCERNS WITH ANY STORMS THAT DEVELOP WILL BE STRONG ERRATIC
GUSTY OUTFLOWS OF 30 TO 45 MPH AND FREQUENT LIGHTNING.
TEMPERATURES WILL BE IN THE MID TO UPPER 70S TODAY WITH MIN
RELATIVE HUMIDITY VALUES AROUND 25%. WINDS ARE EXPECTED TO PREVAIL
FROM THE WEST THROUGH THE REMAINDER OF THE AFTERNOON AT AROUND
10-15 MPH WITH GUSTS OF 20-25 MPH POSSIBLE AT TIMES. LIGHTER WINDS
ARE EXPECTED OVERNIGHT BUT STILL FROM THE WEST AT AROUND 5 TO 10
MPH. TEMPERATURES ON THURSDAY ARE FORECAST TO REACH THE UPPER 70S
TO LOW 80S WITH MIN RELATIVE HUMIDITY VALUES AROUND 25%. WINDS
INCREASE AROUND NOON THURSDAY FROM THE WEST AT 15 TO 20 MPH WITH
PERIODIC GUSTS OF 25 TO 30 MPH. SHOWERS AND THUNDERSTORMS WILL
ONCE AGAIN BE POSSIBLE DURING THE AFTERNOON AND EVENING WITH
CHANCES AROUND 20-50%. CHANCES FOR WETTING RAINS REMAIN LOW WITH
THE MAIN CONCERNS WITH ANY NEARBY STORMS BEING FREQUENT LIGHTNING
AND STRONG GUSTY OUTFLOW WINDS.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
CWR.................0 PERCENT.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF THUNDER...31 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 11 MPH WITH GUSTS TO AROUND 16
MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
RIDGETOP WIND.......WEST 15 TO 20 MPH.
MIXING HEIGHT.......10500 FT AGL UNTIL 1700, THEN 7500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 18 MPH.
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT IN THE AFTERNOON.
TIME (MDT) 4PM 5PM
SKY (%).........75 75
WEATHER COV.....CHC CHC
WEATHER TYPE....RW RW
TSTM COV........CHC CHC
CWR.............0 0
CHC OF PCPN (%).30 40
CHC OF THDR (%).30 30
TEMP............76 74
RH..............25 29
20 FT WIND DIR..W NW
20 FT WIND SPD..11 10
20 FT WIND GUST.16 14
RIDGE WIND DIR..W NW
RIDGE WIND SPD..20 15
MIX HGT (KFT)...11 7.5
TRANSP WIND DIR.W W
TRANSP WIND SPD.18 18
SDSPL KT-FT/1000165 117
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING, THEN SLIGHT CHANCE OF
RAIN SHOWERS LATE IN THE EVENING.
CWR.................0 PERCENT.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF THUNDER...19 PERCENT.
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........58 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 12 MPH WITH GUSTS TO AROUND
17 MPH UNTIL 1900, THEN WEST WITH GUSTS TO
AROUND 18 MPH UNTIL 2100, THEN LIGHT. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY
IN THE EVENING.
RIDGETOP WIND.......SOUTHWEST 15 TO 20 MPH UNTIL 2100, THEN WEST
AROUND 10 MPH.
MIXING HEIGHT.......4500 FT AGL UNTIL 2000, THEN 500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 12 TO 21 MPH UNTIL 2200, THEN WEST 10
TO 12 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 2000. POOR AFTER 2100.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........75 70 70 90 70 50 40 35 25 35 35 25
WEATHER COV.....CHC CHC CHC SCH
WEATHER TYPE....RW RW RW RW
TSTM COV........SCH SCH SCH
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).40 30 30 20 10 10 10 10 10 10 10 10
CHC OF THDR (%).20 20 20 0 0 0 0 0 0 0 0 0
TEMP............72 71 69 66 62 59 57 55 54 51 51 49
RH..............33 36 40 43 47 53 55 57 56 57 57 58
20 FT WIND DIR..S W W W W W NW NW NW W W W
20 FT WIND SPD..12 13 7 6 5 5 6 5 5 5 5 5
20 FT WIND GUST.17 18 11 7 6 6 7 6 6 6 6 6
RIDGE WIND DIR..S W W W W W NW NW NW W W W
RIDGE WIND SPD..20 20 15 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...5.0 4.5 2.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SW SW SW SW W W W W W W W W
TRANSP WIND SPD.20 21 14 12 10 10 12 10 10 10 10 10
SDSPL KT-FT/100084 78 24 7 5 5 6 5 5 5 5 5
THURSDAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY IN THE AFTERNOON.
CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF THUNDER...28 PERCENT.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1000, THEN WEST 7 TO 15 MPH
WITH GUSTS TO AROUND 20 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
RIDGETOP WIND.......WEST 10 TO 15 MPH UNTIL 1100, THEN 20 TO 25
MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900, THEN 3000 FT AGL UNTIL
1000, THEN 6500 FT AGL UNTIL 1100, THEN 10500
FT AGL UNTIL 1500, THEN 8000 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 17 MPH UNTIL 1100, THEN 20 TO 23
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD EARLY IN THE MORNING
INCREASING TO EXCELLENT IN THE AFTERNOON AFTER
1100.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........25 30 25 10 35 55 50 45 60 65 70 75
WEATHER COV..... SCH SCH CHC SCH
WEATHER TYPE.... RW RW RW RW
TSTM COV........ SCH SCH CHC SCH
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 20 30 20
CHC OF THDR (%).0 0 0 0 0 0 10 10 10 20 30 20
TEMP............47 51 55 60 68 73 76 77 78 77 77 77
RH..............58 56 50 42 34 28 25 24 24 26 26 26
20 FT WIND DIR..W NW W W W W W W W W W W
20 FT WIND SPD..5 5 5 6 7 11 13 14 15 15 15 15
20 FT WIND GUST.6 6 6 7 10 16 18 19 20 20 20 20
RIDGE WIND DIR..W NW W W W W W W W W W W
RIDGE WIND SPD..10 10 10 10 15 20 20 20 25 25 25 25
MIX HGT (KFT)...0.5 0.5 1.0 3.0 6.5 9.5 11 10 10 8.0 7.5 7.5
TRANSP WIND DIR.W W W W SW W W W W W W W
TRANSP WIND SPD.10 10 10 12 17 20 21 22 23 23 23 23
SDSPL KT-FT/10005 5 10 31 101 160 186 195 196 165 153 147
FORECAST DAYS 3 THROUGH 5
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WEST WINDS AROUND 9 MPH.
INDEPENDENCE DAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 80S. WEST
WINDS AROUND 9 MPH.
SUNDAY
CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 80S. WEST WINDS
AROUND 9 MPH.
FORECASTER...DZIEWALTOWSKI
REQUESTED BY...SHELBY BELL
TYPE OF REQUEST...WILDFIRE
.TAG 2616597.0/RIW
.DELDT 07/01/26
.FORMATTERVERSION 2.0.0
.EMAIL TRAVIS.L.CLARK@USDA.GOV,WYCDC@FIRENET.GOV,JACOB.BORDERS@USDA.GOV
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