Spot Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 031729
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Spot Forecast for Horsecreek Fire...USFS
National Weather Service Riverton WY
1129 AM MDT Wed Jul 3 2024

Forecast is based on forecast start time of 1200 MDT on July 03.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Skies will remain mostly clear today and all rain
showers/thunderstorms will be well to the north of the site today.
Wind will be stronger this afternoon compared to yesterday, with
predominantly west wind of 15-20 mph and gusts up to 35 mph. Wind
will become light and variable tonight after 2300. Minimum RH
values will drop into the 20-30% range this afternoon, with fair
recovery tonight. Near zero chance of an isolated rain shower
Thursday afternoon.

...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 55.
Min humidity........30 percent.
Wind (20 ft)........West winds 15 to 20 mph with gusts to around
                    30 mph.
Ridgetop wind.......West 25 to 30 mph.
Mixing height.......6000 ft AGL until 1400, then 7500 ft AGL.
Transport winds.....West 26 to 30 mph.
Smoke dispersal.....Very good until 1400, then excellent.
Haines Index........3.

TIME (MDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   5   5   5   10  10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0
LAL.............1   1   1   1   1   1
Temp............50  51  51  51  51  50
RH..............39  37  39  44  39  39
20 FT wind dir..W   W   W   W   W   W
20 FT wind spd..17  18  19  20  20  20
20 FT wind gust.25  26  26  29  29  29
Ridge wind dir..W   W   W   W   W   W
Ridge wind spd..25  30  30  30  30  30
Mix hgt (kft)...5.0 6.0 7.0 7.5 7.5 7.0
Transp wind dir.W   W   W   W   W   W
Transp wind spd.26  28  29  30  30  30
Haines index....3   3   3   3   3   3
SDspl kt-ft/1000110 140 171 190 197 184

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 36.
Max humidity........69 percent.
Wind (20 ft)........West winds 11 to 18 mph with gusts to around 26
                    mph until 2300. Light after 0100.
Ridgetop wind.......West 25 to 30 mph until 2100. Northwest around
                    10 mph after 0200.
Mixing height.......7000 ft AGL until 1900.
Transport winds.....West 21 to 28 mph until 2200, then northwest 10
                    to 18 mph.
Smoke dispersal.....Excellent until 1900. Poor after 2100.
Haines Index........2 to 3.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........10  10  15  30  40  30  20  15  10  10  10  10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............52  51  51  46  44  43  42  41  40  38  38  37
RH..............36  36  37  43  47  49  48  52  55  59  62  67
20 FT wind dir..W   W   W   W   W   NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..18  17  15  13  11  8   7   6   6   6   5   5
20 FT wind gust.26  25  20  18  16  12  10  10  7   7   6   6
Ridge wind dir..W   W   W   W   W   NW  NW  NW  NW  NW  NW  NW
Ridge wind spd..30  25  25  20  20  15  15  15  10  10  10  10
Mix hgt (kft)...7.0 5.0 1.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Transp wind dir.W   W   W   W   W   W   NW  NW  NW  NW  NW  NW
Transp wind spd.28  26  23  21  18  15  14  13  12  12  10  10
Haines index....3   3   3   3   3   3   2   2   2   2   2   2
SDspl kt-ft/1000165 115 16  0   0   0   0   0   0   0   0   0

.INDEPENDENCE DAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 54.
Min humidity........32 percent.
Wind (20 ft)........Light winds until 1000, then west 8 to 16 mph
                    with gusts to around 22 mph.
Ridgetop wind.......Northwest 10 to 15 mph until 1200, then west 20
                    to 25 mph.
Mixing height.......5500 ft AGL after 1300.
Transport winds.....Northwest 10 to 17 mph until 1200, then 20 to
                    24 mph.
Smoke dispersal.....Poor until 0900. Good early in the morning
                    increasing to very good in the afternoon after
                    1200.
Haines Index........2 to 3.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  10  5   5   5   5   5   5   5   5   10  10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............36  39  41  43  45  47  49  50  52  53  53  54
RH..............69  64  59  55  49  43  39  37  36  33  35  32
20 FT wind dir..NW  NW  NW  W   W   W   W   W   W   W   W   NW
20 FT wind spd..5   6   6   6   8   10  12  14  15  16  16  16
20 FT wind gust.6   7   8   10  11  14  17  19  21  22  22  22
Ridge wind dir..NW  NW  NW  W   W   W   W   W   W   W   W   NW
Ridge wind spd..10  10  10  15  15  15  20  20  25  25  25  25
Mix hgt (kft)...0.1 0.1 0.5 2.0 3.0 4.0 4.5 5.0 5.0 5.5 5.5 5.5
Transp wind dir.W   NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.10  12  12  13  15  17  20  22  23  24  24  24
Haines index....2   2   2   2   2   2   3   3   3   3   3   3
SDspl kt-ft/10000   0   4   22  40  57  77  92  104 115 113 111

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly clear. Lows in the upper 30s. Highs in the lower 60s. West
winds around 9 mph.
.SATURDAY...
Mostly clear. Lows in the lower 40s. Highs in the mid 60s. West
winds around 11 mph.
.SUNDAY...
Mostly clear. Lows in the lower 40s. Highs in the lower 60s. West
winds around 10 mph.

$$
Forecaster...Rowe
Requested by...Paul Hood
Type of request...WILDFIRE
.TAG 2417316.0/RIW
.DELDT 07/03/24
.FormatterVersion 2.0.0
.EMAIL paul_hood@nps.gov