Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
978
FNUS75 KRIW 142022
FWSRIW
Spot Forecast for Bare...USFS
National Weather Service Riverton WY
222 PM MDT Fri Aug 14 2026
Forecast is based on forecast start time of 0600 MDT on August 15.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Scattered showers and thunderstorms will develop earlier than
usual on Saturday, starting as early as 1000 LT on the Wyoming Range,
with chances continuing all afternoon and evening until sunset.
About a 40 percent chance of receiving rain sometime during the
day. Gusty and erratic outflow winds 30 to 40 mph are possible
with any shower or storm in the vicinity. Outside of storms, winds
will be fairly light and from the west to southwest at around 10
mph, gusting to around 20 mph during the afternoon hours. Healthy
RH recovery overnight into Sunday morning.
...Thunderstorms imply strong gusty and erratic winds...
.SATURDAY...
Sky/weather.........Mostly sunny (45-55 percent). Chance of showers
and thunderstorms late in the morning through
the afternoon.
CWR.................10 percent.
Chance of pcpn......50 percent.
Chance of thunder...40 percent.
Max temperature.....Around 64.
Min humidity........51 percent.
Wind (20 ft)........Light winds until 1400, then west 8 to 9 mph.
Gusty and erratic winds expected near
thunderstorms.
Ridgetop wind.......West around 10 mph.
Mixing height.......2000 ft AGL until 1000. 6000 ft AGL after 1300.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....Poor until 1000, increasing to Good after 1400.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........50 55 45 30 35 45 60 65 55 50 40 45
Weather cov..... CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH CHC CHC CHC CHC CHC CHC
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
Chc of pcpn (%).10 10 10 30 40 40 40 40 40 40 30 30
Chc of thdr (%).0 0 0 10 10 10 40 40 40 40 30 30
Temp............45 44 47 49 52 55 58 59 61 62 62 64
RH..............81 83 82 80 77 69 60 58 53 51 49 47
20 FT wind dir..W W S E E N S NW W W W W
20 FT wind spd..4 4 3 2 3 3 5 5 9 8 9 8
20 FT wind gust.6 6 4 4 4 6 6 13 12 13 12
Ridge wind dir..W W S E E N S NW W W W W
Ridge wind spd..10 10 10 5 10 10 10 10 15 15 15 15
Mix hgt (kft)...0.5 0.5 0.5 2.0 3.5 4.5 5.0 5.5 5.5 6.0 6.0 5.5
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.9 9 8 7 8 8 10 10 16 15 16 15
SDspl kt-ft/10005 4 4 13 26 32 45 48 77 78 86 71
.SATURDAY NIGHT...
Sky/weather.........Mostly cloudy (50-60 percent) then becoming
mostly clear (20-30 percent).
CWR.................0 percent.
Chance of pcpn......20 percent.
Chance of thunder...10 percent.
Min temperature.....Around 43.
Max humidity........75 percent.
Wind (20 ft)........West winds 7 to 8 mph until 2000, then light.
Gusty and erratic winds expected near
thunderstorms early in the evening.
Ridgetop wind.......West 10 to 15 mph until 0200, then south.
Mixing height.......3500 ft AGL until 2000, then 500 ft AGL.
Transport winds.....West 9 to 15 mph.
Smoke dispersal.....Fair until 2000, then poor.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........55 35 40 30 25 15 10 15 15 15 25 30
Weather cov.....SCH
Weather type....RW
Tstm cov........SCH
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).10 10 10 0 0 0 0 0 0 0 0 0
Chc of thdr (%).10 10 10 0 0 0 0 0 0 0 0 0
Temp............62 60 58 55 52 51 50 49 48 47 45 45
RH..............53 57 62 66 71 73 72 73 73 75 75 73
20 FT wind dir..W W W W W W SW SW S S S SW
20 FT wind spd..8 7 4 4 4 4 4 4 4 6 6 6
20 FT wind gust.12 10 6 6 6 6 6 6 6 7 7 7
Ridge wind dir..W W W W W W SW SW S S S SW
Ridge wind spd..15 15 10 10 10 10 10 10 10 10 10 10
Mix hgt (kft)...4.5 3.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W W W W W W SW SW SW SW SW W
Transp wind spd.15 14 9 9 9 9 9 9 9 12 12 12
SDspl kt-ft/100059 43 5 5 5 5 4 5 5 6 6 5
.SUNDAY...
Sky/weather.........Mostly sunny (30-40 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...14 percent.
Max temperature.....Around 67.
Min humidity........39 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms in the afternoon.
Ridgetop wind.......Southwest around 10 mph until 0800, then light
until 1000, then west 10 to 15 mph.
Mixing height.......1500 ft AGL until 1000, then 4000 ft AGL until
1100, then 6000 ft AGL until 1200, then 8000 ft
AGL until 1500, then 6000 ft AGL.
Transport winds.....West 7 to 13 mph.
Smoke dispersal.....Poor until 1000. Good after 1200.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........20 25 15 10 20 25 30 40 50 55 55 50
Weather cov..... SCH SCH SCH SCH SCH SCH
Weather type.... RW RW RW RW RW RW
Tstm cov........ SCH SCH SCH SCH SCH 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 10 10 10
Chc of thdr (%).0 0 0 0 0 0 10 10 10 10 10 10
Temp............45 44 46 50 54 58 61 63 65 66 67 67
RH..............74 74 73 70 63 55 47 43 40 39 38 39
20 FT wind dir..SW SW SW SW SW W W W W W W W
20 FT wind spd..6 4 2 2 3 5 6 6 6 6 6 6
20 FT wind gust.7 6 5 5 6 8 10 12 13 14 14 14
Ridge wind dir..SW SW SW SW SW W W W W W W W
Ridge wind spd..10 10 5 5 10 10 10 15 15 15 15 15
Mix hgt (kft)...0.5 0.5 1.0 1.5 4.0 6.0 8.0 7.5 7.0 6.0 6.0 5.5
Transp wind dir.SW SW SW W W W W W W W W W
Transp wind spd.12 9 8 7 8 10 12 13 13 13 13 13
SDspl kt-ft/10006 4 8 10 27 54 82 83 76 69 66 63
.FORECAST DAYS 3 THROUGH 5...
.MONDAY...
Partly cloudy. Lows in the mid 40s. Highs in the upper 60s. Light
west winds 5 to 10 mph.
.TUESDAY...
Mostly cloudy. Chance of showers and thunderstorms. Lows in the
upper 40s. Highs in the upper 60s. West winds around 7 mph.
.WEDNESDAY...
Partly cloudy. Slight chance of showers and thunderstorms. Lows
in the mid 40s. Highs in the upper 60s. West winds around 7 mph.
$$
Forecaster...VandenBoogart
Requested by...Stan Mitchem
Type of request...WILDFIRE
.TAG 2619432.3/RIW
.DELDT 08/14/26
.FormatterVersion 2.0.0
.EMAIL Stan@mitchem.com,paul_mitchem@firenet.gov