Suppression Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
107
FNUS75 KRIW 021115
FWSRIW
Spot Forecast for COYOTE RUN...BLM
National Weather Service Riverton WY
515 AM MDT Wed Jul 2 2025
Forecast is based on forecast start time of 0800 MDT on July 02.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Increasing clouds this morning becoming partly cloudy for the
afternoon hours and into the evening. Slight thunderstorm chances
after 2-3PM through sunset (<10%). Gusty, erratic winds the main
threat up to 25-35 mph. Otherwise, winds will remain in the
15-20 mph range this afternoon outside storm activity through
sunset as well becoming light less than 10 mph there on out
overnight into Friday morning. With temperatures pushing well into
the 90s, expect minimum relative humidity values to drop to
the 15-20 percent range with recovery up to 50 to 60 percent
overnight. Smoke dispersal becomes good with the increasing winds
in the afternoon and evening.
Better thunderstorm chances and likely wetting rain for Friday
afternoon (50-60%). More seasonable temperatures, less wind, and
higher minimum relative humidity values will lead to a much more
favorable fire weather conditions heading into the weekend.
...Thunderstorms imply strong gusty and erratic winds...
.TODAY...
Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...6 percent.
Max temperature.....Around 95.
Min humidity........18 percent.
Wind (20 ft)........Light winds until 1500, then south around 7 mph
until 1600, then northwest 12 to 13 mph with
gusts to around 18 mph.
Ridgetop wind.......Southwest around 10 mph until 0800, then light
until 1100, then southwest around 10 mph until
1300, then east until 1500, then south until
1600, then northwest.
Mixing height.......2000 ft AGL until 1000, then 3000 ft AGL until
1100, then 6000 ft AGL until 1200, then 10000
ft AGL until 1300, then 13000 ft AGL until
1700, then 7500 ft AGL.
Transport winds.....Southwest 7 to 14 mph until 1600, then
northwest 20 to 21 mph.
Smoke dispersal.....Poor until 1100, then good until 1400, then
very good early in the morning increasing to
excellent in the afternoon until 1600, then
excellent until 1700, then very good.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........30 30 30 30 30 30 30 30 35 35
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 0 10 10 10
Chc of thdr (%).0 0 0 0 0 0 0 10 10 10
Temp............71 76 80 84 88 90 92 95 93 91
RH..............38 35 31 27 23 21 20 18 20 22
20 FT wind dir..SW SW SW SW SW E E S NW NW
20 FT wind spd..2 1 2 6 4 4 6 7 13 12
20 FT wind gust. 8 6 6 8 11 18 18
Ridge wind dir..SW SW SW SW SW E E S NW NW
Ridge wind spd..5 5 5 10 10 10 10 15 20 20
Mix hgt (kft)...1.0 2.0 3.0 6.0 10 12 13 13 12 7.5
Transp wind dir.S S SW SW SW S S SW W NW
Transp wind spd.7 7 9 12 9 9 12 14 21 20
SDspl kt-ft/10006 11 26 62 80 97 130 159 211 124
.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent) then becoming
mostly cloudy (55-65 percent) then becoming
partly cloudy (40-50 percent).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...7 percent.
Min temperature.....Around 62.
Max humidity........53 percent.
Wind (20 ft)........Northwest winds 7 to 8 mph until 2000, then
light.
Ridgetop wind.......Northwest 10 to 15 mph until 2100. South after
2200.
Mixing height.......4000 ft AGL until 2000, then 1000 ft AGL.
Transport winds.....Northwest 13 to 16 mph until 2100. South 12 to
15 mph after 2300.
Smoke dispersal.....Good early in the evening decreasing to fair
late in the night until 2000. Poor after 2200.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........40 50 55 65 65 60 60 50 45 35 40 40
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).10 10 10 10 0 0 0 0 0 0 0 10
Chc of thdr (%).10 10 10 10 0 0 0 0 0 0 0 0
Temp............90 86 82 78 76 74 72 70 68 66 65 63
RH..............25 28 31 34 38 41 45 47 49 51 51 52
20 FT wind dir..NW NW W W S S S SW S SW SW SW
20 FT wind spd..7 8 5 6 5 6 4 6 5 5 5 4
20 FT wind gust.11 12 7 8 7 10 6 8 7 6 6 6
Ridge wind dir..NW NW W W S S S SW S SW SW SW
Ridge wind spd..15 15 10 10 10 15 10 10 10 10 10 10
Mix hgt (kft)...5.0 4.0 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Transp wind dir.N N NW W SW S S SW SW S S S
Transp wind spd.15 16 13 12 10 13 15 13 13 13 12 12
SDspl kt-ft/100066 54 18 11 7 9 11 9 9 10 8 8
.THURSDAY...
Sky/weather.........Partly sunny (55-65 percent). Slight chance of
thunderstorms early in the afternoon. Chance of
showers in the afternoon. Chance of
thunderstorms late in the afternoon.
CWR.................0 percent increasing to 14 percent in the
afternoon.
Chance of pcpn......50 percent.
Chance of thunder...29 percent.
Max temperature.....Around 88.
Min humidity........27 percent.
Wind (20 ft)........Light winds until 1500, then west around 7 mph.
Gusty and erratic winds expected near
thunderstorms early in the afternoon. Gusty and
erratic winds expected near thunderstorms late
in the afternoon.
Ridgetop wind.......Light winds until 0700, then southwest around
10 mph until 1100, then northwest.
Mixing height.......2000 ft AGL until 1000, then 3500 ft AGL until
1100, then 6000 ft AGL until 1200, then 9000 ft
AGL until 1700, then 6000 ft AGL.
Transport winds.....Southwest 8 to 9 mph until 1000, then west 8 to
15 mph.
Smoke dispersal.....Poor until 1000. Good early in the morning
increasing to very good in the afternoon after
1500.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........45 45 45 50 60 65 65 70 70 70 70 75
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 10 10 10 10 10 10
Chc of pcpn (%).10 10 10 10 10 10 50 50 50 50 50 50
Chc of thdr (%).0 0 0 0 0 0 20 20 20 30 30 30
Temp............62 67 71 76 80 83 84 85 85 84 82 80
RH..............53 50 45 39 34 31 29 28 27 28 30 34
20 FT wind dir..SW S S SW W NW N N NW NW W W
20 FT wind spd..2 3 3 3 3 4 5 6 6 7 7 7
20 FT wind gust. 5 5 6 6 6 7 8 10 11 11 11
Ridge wind dir..SW S S SW W NW N N NW NW W W
Ridge wind spd..5 10 10 10 10 10 10 10 15 15 15 15
Mix hgt (kft)...1.0 1.0 1.5 2.0 3.5 6.0 8.0 8.5 8.5 9.0 7.5 6.0
Transp wind dir.S S SW SW W SW SW SW W W W NW
Transp wind spd.9 9 9 8 8 9 10 12 13 15 14 14
SDspl kt-ft/10006 7 10 12 25 46 72 84 96 118 91 72
.FORECAST DAYS 3 THROUGH 5...
.INDEPENDENCE DAY...
Mostly cloudy. Chance of showers and thunderstorms. Lows around
60. Highs in the mid 80s. Light winds.
.SATURDAY...
Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Light
winds.
.SUNDAY...
Mostly clear. Lows in the mid 50s. Highs in the mid 80s. Light
winds.
$$
Forecaster...Lowe
Requested by...Calvin Hoffman
Type of request...WILDFIRE
.TAG 2517103.0/RIW
.DELDT 07/02/25
.FormatterVersion 2.0.0
.EMAIL choffman@blm.gov,wycdc@firenet.gov