Spot Forecast
Issued by NWS Riverton, WY

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Spot Forecast for Monument Rx...USDA Forest Service
National Weather Service Riverton WY
459 AM MDT Wed Jun 26 2024

Forecast is based on ignition time of 0500 MDT on June 26.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Today will be slightly cooler with chances for showers and
thunderstorms throughout the day. The best chances will be in the
morning, but a few storms may redevelop in the area late this
afternoon. Chances for a wetting rain remain low today, but any
storm that does go directly over the unit could produce brief,
heavy rainfall. Gusty outflow winds are possible near any shower
or storm. Rain chances increase on Thursday, with around a 30
percent chance of a wetting rain.

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

.TODAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly sunny (30-40 percent). Scattered
showers in the morning. Isolated
                    thunderstorms possible in the afternoon.
CWR.................15 percent.
Chance of pcpn......30 percent.
LAL.................1 until 1200, then 2 until 1300, then 1.
Max temperature.....Around 74.
Min humidity........36 percent.
Wind (20 ft)........Generally favoring out of the west or
northwest through the day 4 to 8 mph.
Gusty and erratic winds expected near
                    any thunderstorms.
Ridgetop wind.......South around 5 mph until 0800, then northwest
                    10 to 15 mph until 1400, then west 10 to 15 mph.
Mixing height.......Around 500 ft AGL increasing to 8500 ft AGL by
1600.
Transport winds.....South 7 to 9 mph until 0900 then southwest
15 to 20 mph.
Smoke dispersal.....Poor increasing to excellent after 1500.
Haines Index........3 to 4.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........85  82  86  72  86  88  69  52  56  38  32  41
Weather cov.....ISO ISO SCT SCT SCT SCT SCT ISO         ISO ISO
Weather type....RW  RW  RW  RW  RW  RW  RW  RW          RW  RW
Tstm cov........                        ISO ISO         ISO ISO
CWR.............0   5   5   10  10  10  10  5   5   5   5   5
Chc of pcpn (%).20  20  30  30  30  30  30  15  10  10  15  15
LAL.............1   1   1   1   1   1   2   2   2   1   1   1
Temp............56  57  58  60  63  63  64  67  69  71  72  73
RH..............53  53  45  47  45  46  46  41  39  38  37  36
20 FT wind dir..S   SW  NW  NW  N   NW  NW  W   S   W   W   W
20 FT wind spd..2   2   4   7   5   6   7   6   4   6   7   8
20 FT wind gust.        6   10  6   10  10  7   6   7   10  12
Ridge wind dir..S   SW  NW  NW  N   NW  NW  W   S   W   W   W
Ridge wind spd..5   5   10  15  10  15  15  10  10  10  15  15
Mix hgt (kft)...0.1 0.1 0.5 2.0 2.0 3.0 4.0 5.5 5.5 8.0 8.5 8.0
Transp wind dir.S   S   SW  W   SW  SW  SW  SW  SW  SW  W   W
Transp wind spd.7   7   9   14  10  13  14  15  18  21  21  22
Haines index....4   4   4   4   4   4   3   3   3   3   3   3
SDspl kt-ft/10001   1   4   25  19  31  50  69  87  146 149 151

.TONIGHT...

Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms overnight.
CWR.................1 percent.
Chance of pcpn......20 percent.
LAL.................1 until 0200, then 2.
Min temperature.....Around 52.
Max humidity........72 percent.
Wind (20 ft)........West 5 to 10 mph becoming light
downslope/downvalley after 2200. Gusty and
erratic winds expected near any thunderstorms.
Ridgetop wind.......West 10 to 15 mph.
Mixing height.......7500 ft AGL decreasing to below 500 ft AGL
after 2100.
Transport winds.....West 14 to 21 mph until 2100, then northwest
                    around 9 mph until 2200, then southwest 7 to 12
                    mph.
Smoke dispersal.....Becoming poor by 2100.
Haines Index........3.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........57  44  54  35  51  39  58  65  61  67  79  80
Weather cov.....                                ISO         ISO
Weather type....                                RW          RW
Tstm cov........                                ISO         ISO
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).10  10  10  10  10  10  10  10  20  10  10  20
LAL.............1   1   1   1   1   1   2   2   2   2   2   2
Temp............73  71  69  65  62  60  59  57  56  54  54  53
RH..............36  40  43  50  56  58  61  64  65  69  70  71
20 FT wind dir..W   W   W   W   NW  W   W   W   W   NW  W   S
20 FT wind spd..7   9   7   4   6   3   3   3   2   4   3   4
20 FT wind gust.10  13  10  6   7   4   4   4       6   4   6
Ridge wind dir..W   W   W   W   NW  W   W   W   W   NW  W   S
Ridge wind spd..15  15  15  10  10  10  10  10  5   10  10  10
Mix hgt (kft)...7.5 5.0 1.0 0.1 0.1 0.1 0.1 0.1 0.5 0.1 0.1 0.1
Transp wind dir.W   W   W   NW  W   SW  W   SW  SW  SW  SW  S
Transp wind spd.21  16  14  9   12  8   8   8   7   9   8   9
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
SDspl kt-ft/1000132 69  11  2   2   2   2   1   2   2   2   2

.THURSDAY...

Sky/weather.........Mostly sunny (40-50 percent). Scattered rain
                    showers and thunderstorms through the day.
CWR.................30 percent.
Chance of pcpn......75 percent.
LAL.................1 until 0900, then 2 until 1200, then 3.
Max temperature.....Around 66.
Min humidity........30 percent.
Wind (20 ft)........Light winds becoming west 10 to 15 mph
after 1100 with gusts to around 20 mph.
Gusty and erratic winds expected near
any thunderstorms.
Ridgetop wind.......Southwest 10 to 15 mph until 1200, then west
                    around 20 mph.
Mixing height.......1000 ft AGL until 0900. 6500 ft AGL after 1600.
Transport winds.....Southwest 8 to 17 mph until 1200, then west 20
                    to 25 mph.
Smoke dispersal.....Poor until 0900. Very good after 1700.
Haines Index........3.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........67  59  56  44  51  59  29  31  33  35  31  26
Weather cov.....SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT SCT
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........            ISO ISO ISO SCT SCT SCT SCT SCT SCT
CWR.............20  20  20  20  20  20  20  20  20  20  20  20
Chc of pcpn (%).30  30  30  40  40  40  30  30  30  30  30  30
LAL.............1   1   1   2   2   2   3   3   3   3   3   3
Temp............52  54  56  58  60  60  61  62  63  64  64  64
RH..............72  72  71  68  64  63  62  56  49  43  39  34
20 FT wind dir..SW  W   SW  SW  SW  SW  SW  SW  W   W   W   W
20 FT wind spd..3   3   4   5   7   9   11  11  12  12  13  14
20 FT wind gust.4   4   6   6   10  13  16  16  17  17  18  19
Ridge wind dir..SW  W   SW  SW  SW  SW  SW  SW  W   W   W   W
Ridge wind spd..10  10  10  10  15  15  20  20  20  20  20  20
Mix hgt (kft)...0.1 0.5 1.0 2.0 3.0 4.0 5.0 5.0 5.0 5.5 6.0 6.5
Transp wind dir.S   S   SW  SW  SW  SW  W   W   W   W   W   W
Transp wind spd.8   8   9   10  14  17  21  20  20  20  22  25
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
SDspl kt-ft/10002   2   7   17  36  60  89  87  89  91  113 145

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly clear. Lows around 40. Highs in the lower 60s. West winds
around 7 mph.
.SATURDAY...
Warmer. Mostly clear. Lows in the lower 40s. Highs in the mid
70s. Southeast winds around 6 mph.
.SUNDAY...
Mostly clear. Lows around 50. Highs in the mid 70s. South winds
around 8 mph.

$$
Forecaster...Myers
Requested by...Sam Roseberry
Type of request...PRESCRIBED
.TAG 2416722.0/RIW
.DELDT 06/26/24
.FormatterVersion 2.0.0
.EMAIL samuel.roseberry@usda.gov