Suppression Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
194
FNUS75 KRIW 051108
FWSRIW
Spot Forecast for Deadline Ridge RX...BLM
National Weather Service Riverton WY
508 AM MDT Thu Jun 5 2025
Forecast is based on ignition time of 0600 MDT on June 05.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Very slight chances for thunderstorms (<10%) early this afternoon,
noon until 3PM but confidence is low as most of the activity will
be east of the Divide. Westerly winds through the morning and
afternoon 10 to 15 mph before becoming light and variable after
about 5PM less than 5 to 10 mph into the overnight hours as well.
Slightly warmer this afternoon with high temperatures near 60
degrees, and as such, minimum relative humidity values will be
between 25 to 30 percent.
Warming trend continues Friday and into the weekend with mainly
dry conditions persisting. Wind activity looks to remain limited
generally in the 10 to 20 mph range, peaking in the afternoons.
...Thunderstorms imply strong gusty and erratic winds...
.TODAY...
Sky/weather.........Mostly sunny (35-45 percent).
Chance of pcpn......10 percent.
Chance of thunder...6 percent.
Max temperature.....Around 58.
Min humidity........28 percent.
Wind (20 ft)........Light winds until 1200, then west 7 to 10 mph
with gusts to around 14 mph.
Mixing height.......1500 ft AGL until 1000. 8500 ft AGL after 1400.
Transport winds.....Southwest 8 to 17 mph.
Smoke dispersal.....Poor until 0900. Very good after 1500.
TIME (MDT) MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A
Sky (%).........20 30 40 40 40 50 50 55 55 50 50 55
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 0 0 0 0 0 10 10 10 10 10
Chc of thdr (%).0 0 0 0 0 0 0 10 10 10 10 10
Temp............36 39 43 47 50 52 55 56 57 58 58 58
RH..............74 71 66 58 50 44 36 33 31 31 28 30
20 FT wind dir..SW SW S SE SW SW W W W W W W
20 FT wind spd..4 4 3 4 4 5 7 8 9 8 10 10
20 FT wind gust.6 6 4 6 6 6 10 12 13 12 14 14
Mix hgt (kft)...0.5 0.5 1.5 1.5 3.5 5.0 6.0 7.0 8.0 8.5 8.0 8.0
Transp wind dir.SW S S SW SW W W W W W W W
Transp wind spd.9 9 8 9 9 10 14 15 16 16 17 17
SDspl kt-ft/10003 3 10 14 26 44 74 90 111 117 122 122
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent) then becoming
partly cloudy (45-55 percent) then becoming
mostly cloudy (50-60 percent) then becoming
partly cloudy (35-45 percent). Isolated rain
showers late in the evening.
Chance of pcpn......20 percent.
Chance of thunder...8 percent.
Min temperature.....Around 39.
Max humidity........73 percent.
Wind (20 ft)........West winds 8 to 10 mph until 2200, then light.
Mixing height.......8500 ft AGL until 1900, then 5500 ft AGL until
2000, then 500 ft AGL until 0200, then 500 ft
AGL after 0300.
Transport winds.....West 15 to 17 mph until 2200, then north around
13 mph until 2300, then southeast 10 to 12 mph
until 0300, then south 9 to 10 mph.
Smoke dispersal.....Very good until 1900. Poor after 2100.
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P
Sky (%).........55 65 65 50 55 40 45 45 30 40 35 45
Weather cov..... ISO
Weather type.... RW
Tstm cov........
Chc of pcpn (%).10 10 10 20 0 0 0 0 0 0 10 0
Chc of thdr (%).10 10 10 10 0 0 0 0 0 0 0 0
Temp............58 56 53 50 47 46 44 43 42 41 40 39
RH..............30 32 38 49 57 57 60 63 66 69 70 73
20 FT wind dir..W W W W NW NW NE S S S S S
20 FT wind spd..10 8 8 8 6 6 6 5 5 4 4 5
20 FT wind gust.14 12 12 12 10 8 7 6 6 6 6 6
Mix hgt (kft)...8.5 5.5 2.0 0.5 0.5 0.5 0.5 0.5 0.1 0.5 0.5 0.5
Transp wind dir.W W NW NW N E E SE SE S S SW
Transp wind spd.17 15 15 15 13 12 12 10 10 9 9 10
SDspl kt-ft/1000124 75 25 6 4 4 4 3 2 3 3 3
.FRIDAY...
Sky/weather.........Mostly sunny (35-45 percent). Isolated showers
and thunderstorms early in the afternoon.
Chance of pcpn......20 percent.
Chance of thunder...16 percent.
Max temperature.....Around 62.
Min humidity........27 percent.
Wind (20 ft)........Light winds until 0900, then southwest around 7
mph until 1000, then light until 1200, then
west 8 to 10 mph. Gusty and erratic winds
expected near thunderstorms early in the
afternoon.
Mixing height.......1500 ft AGL until 0900. 9500 ft AGL after 1300.
Transport winds.....West 9 to 18 mph until 1600, then northwest
around 17 mph.
Smoke dispersal.....Poor until 0900. Very good early in the morning
increasing to excellent in the afternoon after
1300.
TIME (MDT) MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A
Sky (%).........55 45 20 20 20 25 25 30 30 30 25 20
Weather cov..... ISO
Weather type.... RW
Tstm cov........ ISO
Chc of pcpn (%).0 10 0 0 0 10 20 10 0 0 0 0
Chc of thdr (%).0 0 0 0 0 10 20 10 0 0 0 0
Temp............39 42 45 49 51 55 58 59 61 60 61 61
RH..............72 70 64 58 51 44 35 33 32 32 27 28
20 FT wind dir..SW S S SW W W W W W W W W
20 FT wind spd..5 4 5 7 6 6 9 9 8 10 10 10
20 FT wind gust.6 6 6 11 10 10 12 13 12 14 14 14
Mix hgt (kft)...0.5 0.5 1.5 3.0 4.5 6.5 8.0 8.5 9.0 9.5 8.5 8.0
Transp wind dir.SW SW SW W W W W W W W W NW
Transp wind spd.10 9 10 14 13 14 16 17 17 18 17 17
SDspl kt-ft/10003 5 13 35 49 75 114 128 134 150 129 117
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
Mostly clear. Lows in the mid 40s. Highs in the upper 60s. West
winds around 9 mph.
.SUNDAY...
Mostly clear. Lows in the mid 40s. Highs in the lower 70s. West
winds around 9 mph.
.MONDAY...
Mostly clear. Lows in the upper 40s. Highs in the lower 70s. West
winds around 7 mph.
$$
Forecaster...Lowe
Requested by...Mike Ellefson
Type of request...PRESCRIBED
.TAG 2515348.0/RIW
.DELDT 06/05/25
.FormatterVersion 2.0.0
.EMAIL mike.ellefson@gmail.com