Spot Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 031209
FWSRIW

Spot Forecast for COYOTE RUN...USDA
National Weather Service Riverton WY
609 AM MDT Thu Jul 3 2025

Forecast is based on forecast start time of 0700 MDT on July 03.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Increasing clouds and storm chances this morning, with a better
chance (~30% coverage) after 4PM through the late evening hours
around 10PM. Light west to northerly winds 5 to 10 mph peaking
after 5PM up to 15 mph from the northwest before becoming less
than 10 mph after 8PM after sunset and through the overnight
hours. Some lingering shower chances overnight but another round
expected more widespread for Friday afternoon/evening (70-80%).
Not as warm in the afternoon with high temperatures in the mid 80s,
giving way to higher minimum relative humidity values above the
25 to 30 percent mark. Smoke dispersal fair at best with weaker
winds expected Thursday and Friday.

...Thunderstorms imply strong gusty and erratic winds...

.TODAY...

Sky/weather.........Mostly sunny (45-55 percent) then becoming
                    mostly cloudy (70-80 percent). Slight chance of
                    showers and thunderstorms early in the
                    afternoon. Chance of showers and thunderstorms
                    late in the afternoon.
Chance of pcpn......30 percent.
Chance of thunder...29 percent.
Max temperature.....Around 86.
Min humidity........28 percent.
Wind (20 ft)........Light winds until 1700, then northwest around
                    13 mph with gusts to around 18 mph. Gusty and
                    erratic winds expected near thunderstorms in
                    the afternoon.
Mixing height.......2000 ft AGL until 1000, then 5000 ft AGL until
                    1200, then 7500 ft AGL until 1300, then 11000
                    ft AGL until 1500, then 8500 ft AGL until 1600,
                    then 4000 ft AGL.
Transport winds.....Southwest 8 to 9 mph until 1000, then northwest
                    around 8 mph until 1100, then west 9 to 17 mph
                    until 1700, then northwest around 21 mph.
Smoke dispersal.....Poor until 1100, then fair until 1300, then
                    good until 1600, then fair early in the morning
                    increasing to good in the afternoon.

TIME (MDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........35  40  40  45  50  50  55  60  65  70  75
Weather cov.....                        SCH SCH SCH CHC CHC
Weather type....                        RW  RW  RW  RW  RW
Tstm cov........                        SCH SCH SCH CHC CHC
Chc of pcpn (%).0   0   0   0   0   10  10  20  20  30  30
Chc of thdr (%).0   0   0   0   0   10  10  20  20  30  30
Temp............65  70  74  77  81  84  85  86  86  85  83
RH..............50  46  43  38  34  30  29  29  28  30  32
20 FT wind dir..W   W   N   N   N   N   NE  W   W   W   NW
20 FT wind spd..3   3   3   3   4   4   5   2   6   4   13
20 FT wind gust.5   4   4   4   6   6   6   4   8   5   18
Mix hgt (kft)...1.0 1.0 2.0 3.5 5.0 7.5 10  11  8.5 4.0 3.5
Transp wind dir.SW  SW  W   NW  W   SW  SW  SW  W   NW  NW
Transp wind spd.8   8   8   8   9   9   10  10  12  17  21
SDspl kt-ft/10006   8   14  24  41  59  90  99  84  58  62

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). Chance of
                    showers in the evening. Slight chance of
                    thunderstorms in the evening. Slight chance of
                    showers late in the evening.
Chance of pcpn......40 percent.
Chance of thunder...24 percent.
Min temperature.....Around 62.
Max humidity........75 percent.
Wind (20 ft)........Northwest winds 7 to 10 mph with gusts to
                    around 14 mph until 2000, then light. Gusty and
                    erratic winds expected near thunderstorms in
                    the evening.
Mixing height.......4500 ft AGL until 1900, then 1000 ft AGL.
Transport winds.....West 10 to 17 mph until 2300, then southwest 8
                    to 13 mph.
Smoke dispersal.....Good until 1900. Poor after 0500.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........75  80  80  80  80  80  80  75  70  65  65  70
Weather cov.....CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH SCH SCH SCH
Chc of pcpn (%).40  40  30  30  30  20  20  20  20  20  20  20
Chc of thdr (%).20  20  20  20  20  20  10  10  10  0   0   0
Temp............82  80  78  76  74  72  70  68  66  64  63  63
RH..............34  38  42  46  50  55  59  62  65  68  70  73
20 FT wind dir..NW  NW  W   S   S   S   W   W   NW  S   S   S
20 FT wind spd..10  7   6   6   5   5   5   5   6   3   3   3
20 FT wind gust.14  11  10  8   7   7   7   6   7   4   5   5
Mix hgt (kft)...4.5 2.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.0
Transp wind dir.W   W   W   W   NW  SW  S   SW  W   W   SW  S
Transp wind spd.17  14  13  12  10  10  10  13  12  8   8   8
SDspl kt-ft/100066  29  16  14  13  13  13  18  17  10  10  8

.INDEPENDENCE DAY...

Sky/weather.........Mostly sunny (45-55 percent). Slight chance of
                    showers in the morning, then showers and chance
                    of thunderstorms in the afternoon.
Chance of pcpn......80 percent.
Chance of thunder...45 percent.
Max temperature.....Around 83.
Min humidity........42 percent.
Wind (20 ft)........Light winds until 1500, then northwest 7 to 8
                    mph with gusts to around 13 mph. Gusty and
                    erratic winds expected near thunderstorms in
                    the afternoon.
Mixing height.......1500 ft AGL until 0900, then 3500 ft AGL until
                    1100, then 6500 ft AGL until 1300, then 8500 ft
                    AGL until 1700, then 6000 ft AGL.
Transport winds.....Southwest 8 to 10 mph until 0900, then
                    northwest 8 to 15 mph.
Smoke dispersal.....Poor until 0900. 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 (%).........70  65  50  50  35  30  30  30  35  35  40  45
Weather cov.....SCH SCH SCH SCH SCH SCH DEF DEF DEF DEF DEF DEF
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                        CHC CHC CHC CHC CHC CHC
Chc of pcpn (%).20  20  20  20  20  20  80  80  80  80  80  80
Chc of thdr (%).0   0   0   10  10  10  30  30  30  50  50  50
Temp............62  63  66  68  71  74  76  77  78  78  78  76
RH..............75  75  69  62  59  53  47  44  42  42  43  45
20 FT wind dir..S   S   SW  SW  S   S   S   SW  W   NW  NW  N
20 FT wind spd..3   2   2   3   4   4   5   6   6   7   8   8
20 FT wind gust.4   5   6   6   6   7   8   10  11  12  13  13
Mix hgt (kft)...1.5 1.0 1.5 3.0 3.5 5.0 6.5 7.0 8.0 8.5 7.0 6.0
Transp wind dir.SW  SW  SW  W   W   W   W   NW  NW  NW  NW  NW
Transp wind spd.8   8   10  8   9   9   10  12  13  14  15  15
SDspl kt-ft/10009   8   16  19  29  40  57  71  86  102 94  77

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
Mostly clear. Chance of showers and thunderstorms. Lows in the
mid 50s. Highs in the upper 80s. Light winds.
.SUNDAY...
Mostly clear. Lows in the mid 50s. Highs in the mid 80s. Light
winds.
.MONDAY...
Mostly clear. Lows in the upper 50s. Highs around 90. Light
winds.

$$
Forecaster...Lowe
Requested by...TYRUS GARRETT
Type of request...WILDFIRE
.TAG 2517169.0/RIW
.DELDT 07/03/25
.FormatterVersion 2.0.0
.EMAIL choffman@blm.gov,tyrus.garrett@usda.gov