Text Products for FWS Issued by RIW

Spot Forecast
Issued by NWS Riverton, WY
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FNUS75 KRIW 121152
FWSRIW

Spot Forecast for Noon Point RX...BLM WOD
National Weather Service Riverton WY
552 AM MDT Fri Apr 12 2024

Forecast is based on ignition time of 0900 MDT on April 12.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

Skies will start clear this morning, but high clouds are expected
to redevelop over the area toward 1200 and continue through the
rest of the afternoon. Wind gusts of 20 to 25 mph have subsided
this morning, but could return later this morning around 0900. If
not, expect them to return after 1200. There is a very isolated
chance (10 to 15%) of a virga shower passing over the area from
the southwest between 1600 and 1900. Winds are expected to
decrease between 2000 and 2200, but could begin gusting again
after 0100 Saturday. Wind gusts around 20 mph will return again
Saturday. There will be a slight chance (20-30%) for a rain/virga
shower once again Saturday afternoon as well.

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

.TODAY...

Sky/weather.........Mostly sunny becoming partly cloudy
                    (40-50 percent) by 1200.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 61.
Min humidity........27 percent.
Wind (20 ft)........Southwest winds 7 to 14 mph. Gusts up to 26 mph
                    after 1200.
Ridgetop wind.......Southwest 15 to 20 mph.
Mixing height.......600 ft AGL increasing to 5400 ft AGL by 1500.
Transport winds.....Southwest 16 to 22 mph.
Smoke dispersal.....Poor early in the morning increasing to good
                    by 1500.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (MDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........43  47  50  53  54  54  54  47  40
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
Chc of pcpn (%).10  0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1
Temp............50  53  57  61  61  61  61  61  60
RH..............39  34  30  25  26  26  27  26  26
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..7   9   12  14  14  14  13  11  10
20 FT wind gust.11  14  18  21  21  21  19  17  16
Ridge wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW
Ridge wind spd..15  15  15  20  20  20  20  20  20
Mix hgt (kft)...0.6 0.6 0.6 3.2 3.2 3.2 5.4 5.4 5.4
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.16  16  16  22  22  22  21  21  21
Haines index....3   3   3   4   4   4   4   4   4
SDspl kt-ft/10008   8   8   61  61  61  98  98  98

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 45.
Max humidity........47 percent.
Wind (20 ft)........Southwest winds 6 to 11 mph.
Ridgetop wind.......Southwest 15 to 20 mph.
Mixing height.......2400 ft AGL decreasing to 500 ft AGL in the
                    late evening and overnight.
Transport winds.....Southwest 13 to 20 mph.
Smoke dispersal.....Poor.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........33  35  38  41  41  42  43  45  48  50  48  47
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............60  57  54  51  50  48  47  47  46  46  45  45
RH..............25  33  39  44  45  46  47  47  47  47  46  45
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..8   7   6   6   6   7   8   9   11  11  11  10
20 FT wind gust.13  11  10  10  10  11  13  14  17  17  17  16
Ridge wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Ridge wind spd..15  15  15  15  15  15  15  15  15  20  20  20
Mix hgt (kft)...2.4 2.4 2.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.14  14  14  13  13  13  17  17  17  20  20  20
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
SDspl kt-ft/100029  29  29  6   6   6   8   8   8   9   9   9

.SATURDAY...

Sky/weather.........Partly cloudy (25-35 percent). Slight chance of
                    rain showers (20-30 percent) between 1100 and
                    1500.
CWR.................0 percent.
Chance of pcpn......30 percent.
LAL.................1.
Max temperature.....Around 63.
Min humidity........22 percent.
Wind (20 ft)........West winds 10 to 11 mph.
Ridgetop wind.......West 15 to 20 mph.
Mixing height.......1100 ft AGL increasing to 7600 ft AGL.
Transport winds.....West 17 to 21 mph.
Smoke dispersal.....Poor early in the morning increasing to good
                    by 1200, increasing to very good by 1500.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........45  42  39  35  32  29  26  25  25  24  21  19
Weather cov.....                    SCH CHC SCH SCH SCH
Weather type....                    RW  RW  RW  RW  RW
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   10  10  10  20  30  20  20  20  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............45  48  51  54  57  60  63  63  62  62  61  59
RH..............45  41  37  33  30  26  23  23  23  23  23  22
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..10  10  11  11  11  11  10  10  11  11  11  10
20 FT wind gust.16  16  17  17  17  17  16  16  17  17  17  16
Ridge wind dir..W   W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..15  15  15  20  20  20  15  15  15  20  20  20
Mix hgt (kft)...0.5 0.5 0.5 1.1 1.1 1.1 6.0 6.0 6.0 7.6 7.6 7.6
Transp wind dir.SW  SW  SW  W   W   W   W   W   W   W   W   W
Transp wind spd.21  21  21  20  20  20  17  17  17  18  18  18
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
SDspl kt-ft/100010  10  10  18  18  18  90  90  90  122 122 122

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Mostly clear. Lows around 40. Highs in the lower 60s. Southwest
winds around 8 mph.
.MONDAY...
Partly cloudy. Chance of showers. Lows in the upper 30s. Highs in
the mid 50s. West winds around 8 mph.
.TUESDAY...
Mostly cloudy. Snow showers likely and chance of showers. Lows in
the lower 30s. Highs in the mid 40s. Northwest winds around
9 mph.

$$
Forecaster...LaVoie
Requested by...Derek Trauntvein
Type of request...PRESCRIBED
.TAG 2410398.0/RIW
.DELDT 04/12/24
.FormatterVersion 2.0.0
.EMAIL dtrauntv@blm.gov
National Weather Service Weather Forecast Office
