105
FNUS75 KRIW 291203
FWSRIW
SPOT FORECAST FOR HORSE FIRE...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
603 AM MDT TUE JUL 29 2025
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON JULY 29.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
NEAR TO ELEVATED FIRE WEATHER CONDITIONS WILL BE POSSIBLE ACROSS THE
AREA TODAY. MIN RH WILL RANGE FROM 15 TO 20 PERCENT WITH WINDS
REMAINING MARGINAL. NORTHERLY DRAINAGE WINDS WILL GRADUALLY
DISSIPATE THROUGH THE MORNING BECOMING SOUTH/SOUTHWEST BY THE LATE
MORNING AND EARLY AFTERNOON. WINDS WILL INCREASE WITH THE DIRECTION
SHIFT RANGING FROM 10 TO 15 MPH WITH GUSTS AROUND 20 MPH. SHOWERS
AND THUNDERSTORMS WILL BE POSSIBLE STARTING IN THE MID MORNING
THROUGH THE AFTERNOON. PERIODIC STRONG GUSTY WINDS OF 30 TO 40 MPH
WILL BE POSSIBLE NEARBY ANY DEVELOPING SHOWERS OR THUNDERSTORMS.
PERSISTENT DRY AIR WILL HINDER WETTING RAIN CHANCES WITH MUCH OF THE
AREA SEEING NEAR ZERO CHANCES. MIN RH VALUES WILL IMPROVE WEDNESDAY
ALONG WITH INCREASED CHANCES FOR SHOWERS AND THUNDERSTORMS. DAILY
CHANCES FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE
REMAINDER OF THE WEEK.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........16 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1300, THEN SOUTHWEST 8 TO 12
MPH WITH GUSTS TO AROUND 18 MPH UNTIL 1700,
THEN LIGHT. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 6000 FT AGL UNTIL
1100, THEN 11500 FT AGL UNTIL 1200, THEN 14000
FT AGL UNTIL 1400, THEN 12000 FT AGL UNTIL
1600, THEN 9000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 7 TO 16 MPH UNTIL 1500, THEN WEST 14
TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN FAIR UNTIL 1100, THEN
VERY GOOD EARLY IN THE MORNING INCREASING TO
EXCELLENT IN THE AFTERNOON UNTIL 1300, THEN
EXCELLENT UNTIL 1600, THEN VERY GOOD.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 15 10 20 30 40 45 50 50 45 40
WEATHER COV..... SCH CHC CHC SCH SCH
WEATHER TYPE.... RW RW RW RW RW
TSTM COV........ SCH SCH SCH
CHC OF PCPN (%).0 0 0 10 10 10 20 30 30 20 20
CHC OF THDR (%).0 0 0 0 0 10 10 10 10 10 10
TEMP............54 58 62 66 70 73 73 73 72 70 67
RH..............28 27 27 23 20 16 17 18 19 23 27
20 FT WIND DIR..W W SE S S SW SW SW W W SW
20 FT WIND SPD..3 3 2 4 6 6 8 8 12 9 5
20 FT WIND GUST.5 5 6 8 10 12 12 18 14 7
MIX HGT (KFT)...0.5 0.5 1.5 6.0 12 14 13 12 12 8.0 9.0
TRANSP WIND DIR.SW SW SW SW SW SW SW SW W W W
TRANSP WIND SPD.8 8 7 9 13 14 16 16 20 16 14
SDSPL KT-FT/10004 4 8 50 125 167 185 170 207 112 106
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...6 PERCENT.
MIN TEMPERATURE.....AROUND 47.
MAX HUMIDITY........68 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......7000 FT AGL UNTIL 1900. 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTH 9 TO 14 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2000.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........35 30 25 20 20 20 25 20 15 10 15 15
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).10 10 10 10 10 10 10 10 0 0 0 0
CHC OF THDR (%).10 10 10 0 0 0 0 0 0 0 0 0
TEMP............65 63 60 58 56 53 51 49 48 47 47 48
RH..............31 34 36 39 42 45 48 53 58 62 64 66
20 FT WIND DIR..S S S SW SW SW S SE S SE S S
20 FT WIND SPD..4 6 5 4 4 4 5 5 6 6 6 6
20 FT WIND GUST.6 7 7 6 6 6 6 7 8 10 10 10
MIX HGT (KFT)...7.0 4.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SE SE SE SE S S S S S S S S
TRANSP WIND SPD.13 12 10 9 9 9 10 12 12 13 13 14
SDSPL KT-FT/100077 47 7 5 5 5 5 6 6 6 6 7
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF
THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. AREAS OF
SMOKE LATE IN THE AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........37 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 7 TO 8 MPH UNTIL 1700, THEN
LIGHT. GUSTS UP TO 18 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 2500 FT AGL UNTIL
1100, THEN 4500 FT AGL UNTIL 1200, THEN 8000 FT
AGL UNTIL 1400, THEN 10000 FT AGL UNTIL 1700,
THEN 7500 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD EARLY IN THE MORNING
INCREASING TO VERY GOOD IN THE AFTERNOON AFTER
1300.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 30 10 10 10 10 15 25 40 50 45 40
WEATHER COV..... CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ CHC CHC CHC SCH SCH SCH
CHC OF PCPN (%).0 0 0 0 0 0 40 40 40 40 40 40
CHC OF THDR (%).0 0 0 0 0 0 30 30 30 20 20 20
TEMP............48 49 53 58 62 66 68 69 69 69 69 69
RH..............68 67 65 59 51 45 40 36 34 33 32 32
20 FT WIND DIR..S S S SE SE SE SE SE S S SE E
20 FT WIND SPD..7 7 7 7 7 8 8 8 7 7 7 6
20 FT WIND GUST.12 12 12 13 14 14 14 14 14 14 14 13
MIX HGT (KFT)...0.5 0.5 1.0 1.5 2.5 4.5 6.5 8.0 9.0 10 9.0 7.5
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.14 14 14 14 14 15 15 15 14 14 14 13
SDSPL KT-FT/10007 7 14 20 32 61 88 102 108 121 106 83
FORECAST DAYS 3 THROUGH 5
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 70S. SOUTHEAST WINDS AROUND 8 MPH.
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS IN THE LOWER 70S. LIGHT WINDS.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
LIGHT WINDS.
FORECASTER...DZIEWALTOWSKI
REQUESTED BY...AARON BAECHLE
TYPE OF REQUEST...WILDFIRE
.TAG 2518772.0/RIW
.DELDT 07/29/25
.FORMATTERVERSION 2.0.0
.EMAIL AARONBAECHLE@GMAIL.COM
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