Suppression Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 302331
FWSRIW

Spot Forecast for soda Lake...USFS BTF
National Weather Service Riverton WY
531 PM MDT Fri Jul 30 2021

Forecast is based on forecast start time of 1700 MDT on July 30.
If conditions become unrepresentative...contact the National Weather
Service.

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY AFTERNOON...

.DISCUSSION...

Scattered showers and thunderstorms through midnight, then
isolated showers and thunderstorms after midnight. Showers and
thunderstorms will once again occur on Saturday. Locally very
heavy rainfall.

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

FORECASTER...Murrell

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Scattered
                    rain showers and thunderstorms. Locally
                    heavy rainfall.
Min temperature.....49-52.
Max humidity........87-90 percent.
20-foot winds.......West winds around 10 mph, then becoming
                    downslope/downvalley 4-7 mph. Gusty and
                    erratic winds expected near thunderstorms.
Ridge top winds.....Variable 10 to 15 mph due to nearby
                    thunderstorms.
LAL.................3 until 2400, then 2.
Chc of wetting rain.25 percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......600 ft AGL.
Transport winds.....Variable 5 to 10 mph.
Smoke dispersal.....Poor.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........72  86  86  92  93  87  62  73  81  86  90  88
Weather cov.....CHC CHC CHC CHC LKY CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
CWR.............50  50  50  50  50  50  30  30  30  30  30  30
LAL.............4   4   4   4   4   4   3   3   3   3   3   3
Temp............62  60  59  58  57  56  55  55  54  52  53  51
RH..............72  75  78  79  79  80  79  78  82  87  83  84
20 FT wind dir..W   N   N   W   S   SW  E   SE  S   SE  S   S
20 FT wind spd..8   8   6   6   6   6   7   6   6   6   5   5
20 FT wind gust.16  17  16  15  14  16  18  16  15  14  13  13
Mix hgt (kft)...2.0 2.0 2.0 0.8 0.8 0.8 0.7 0.7 0.7 0.5 0.5 0.5
Transp wind dir.E   E   E   W   W   W   SE  SE  SE  SE  SE  SE
Transp wind spd.12  12  12  13  13  13  10  10  10  10  10  10
Haines index....2   2   2   2   2   2   2   2   2   2   2   2
SDspl kt-ft/100020  20  20  8   8   8   6   6   6   5   5   5

.SATURDAY...

Sky/weather.........Mostly cloudy (70-80 percent) with widely
                    scattered showers in the morning. Rain
                    showers likely and chance of thunderstorms
                    in the afternoon.
Max temperature.....Around 70.
Min humidity........61-64 percent.
20-foot winds.......Southeast 5 to 10 mph, becoming
                    variable 10 to 15 mph due to nearby
                    thunderstorms. Gusty and erratic winds
                    expected near thunderstorms.
Ridge top winds.....Southeast to east around 10 mph, becoming
                    variable 10 to 15 mph from nearby
                    thunderstorms.
LAL.................1 until 0900, then 2 until 1200, then 4.
Chc of wetting rain.60 percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......3700 ft AGL.
Transport winds.....Southeast around 10 mph becoming variable
                    10 to 15 mph in the afternoon from nearby
                    thunderstorms.
Smoke dispersal.....Poor.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........86  65  76  81  57  54  56  75  80  69  65  63
Weather cov.....SCH SCH SCH CHC CHC CHC CHC CHC CHC LKY LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........            SCH SCH SCH CHC CHC CHC CHC CHC CHC
CWR.............30  30  30  30  30  30  60  60  60  60  60  60
LAL.............2   2   2   2   2   2   4   4   4   4   4   4
Temp............52  50  52  59  61  62  63  65  65  65  63  62
RH..............83  89  90  74  71  69  67  66  65  64  70  71
20 FT wind dir..S   S   S   S   SE  SE  SE  SE  E   NE  E   S
20 FT wind spd..5   5   6   6   6   8   8   8   8   8   7   7
20 FT wind gust.14  10  14  14  16  15  15  17  17  17  17  18
Mix hgt (kft)...0.5 0.5 0.5 1.5 1.5 1.5 4.0 4.0 4.0 3.7 3.7 3.7
Transp wind dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
Transp wind spd.10  10  10  13  13  13  15  15  15  12  12  12
Haines index....2   2   2   2   2   2   2   2   2   2   2   2
SDspl kt-ft/10004   4   4   17  17  17  52  52  52  37  37  37

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy (70-80 percent) with numerous
                    showers and scattered thunderstorms in the
                    evening. Isolated showers and possibly a
                    thunderstorm after midnight.
Min temperature.....49-52.
Max humidity........68-71 percent.
20-foot winds.......Variable around 10 mph, becoming southeast
                    5 to 10 mph by 2200 PM. Gusty and erratic
                    winds expected near thunderstorms.
Ridge top winds.....Variable around 10 mph, becoming southeast
                    around 10 mph by 2200.
LAL.................4 until 2100, then 2 until 2400, then 1.
Chc of wetting rain.30 percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......600 ft AGL.
Transport winds.....Southeast 10 to 15 mph.
Smoke dispersal.....Poor.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........73  85  88  93  91  76  61  57  52  48  50  53
Weather cov.....CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC SCH SCH SCH
CWR.............40  40  40  40  40  40  0   0   0   0   0   0
LAL.............4   4   4   4   4   4   1   1   1   1   1   1
Temp............61  61  60  57  55  55  55  54  52  51  51  50
RH..............72  76  75  79  83  78  72  74  75  77  77  77
20 FT wind dir..E   NW  N   S   S   S   S   S   S   S   SE  S
20 FT wind spd..8   8   7   10  8   8   7   7   6   6   6   5
20 FT wind gust.18  17  21  24  22  18  18  17  14  14  12  10
Mix hgt (kft)...1.8 1.8 1.8 0.7 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.5
Transp wind dir.SE  SE  SE  SE  SE  SE  S   S   S   SE  SE  SE
Transp wind spd.10  10  10  15  15  15  15  15  15  12  12  12
Haines index....2   2   2   2   2   2   2   2   2   2   2   2
SDspl kt-ft/100016  16  16  10  10  10  8   8   8   5   5   5

.FORECAST DAYS 3 THROUGH 5...

.SUNDAY NIGHT...
Mostly cloudy. Showers likely and chance of thunderstorms in the
evening, then slight chance of showers and thunderstorms
overnight. Lows in the lower 50s. Winds generally less than
10 mph.

.MONDAY...
Mostly cloudy. Showers with thunderstorms likely.Highs in the
upper 60s. Winds generally less than 10 mph.

.TUESDAY...
Mostly clear. Chance of showers and thunderstorms. Lows in the
upper 40s. Highs in the upper 60s. Winds generally less than
10 mph.

.WEDNESDAY...
Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Winds generally less than 10 mph.

.THURSDAY...
Mostly clear. Chance of showers and thunderstorms. Lows in the
mid 40s. Highs in the lower 70s. Winds generally less than
10 mph.

$$
Forecaster...Murrell
Requested by...Wade Burleson PSC3
Type of request...WILDFIRE
.TAG 2116674.0/RIW
.DELDT 07/30/21
.EMAIL pwosprey@gmail.com


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