Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
429
FNUS75 KRIW 301133
FWSRIW
Spot Forecast for Deadline Ridge RX...BLM WY
National Weather Service Riverton WY
533 AM MDT Thu May 30 2024
Forecast is based on ignition time of 0600 MDT on May 30.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
It will be mostly clear and dry today as no impactful weather systems
will move through the area. Wind will increase this morning and become
westerly 10-20 mph, with gusts up to 30 mph. Smoke dispersal will
quickly improve this morning and become very good to excellent by
mid-afternoon. Wind will become light around sunset through tonight,
mainly from the west/southwest.
...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...
.TODAY...
Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 51.
Min humidity........33 percent.
Wind (20 ft)........West winds 5 to 10 mph increasing to 13 to 18
mph by 1400. Gusts up to 28 mph through the
afternoon.
Ridgetop wind.......West 10 to 15 mph this morning increasing to
20 to 25 mph by 1400.
Mixing height.......400 ft AGL early in the morning increasing
through the morning to 5900 ft AGL by 1300.
Transport winds.....West 10 to 17 mph increasing to 20 to 24 mph
by 1100.
Smoke dispersal.....Poor (3700 knot-ft) early in the morning
gradually increasing to very good (110700
knot-ft) by 1400.
Haines Index........2 or very low potential for large plume
dominated fire growth.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........14 8 4 4 5 11 15 21 24 22 20 30
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............31 34 37 39 44 46 48 48 49 50 51 50
RH..............61 58 47 38 37 37 36 36 34 34 34 33
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..6 5 6 6 8 10 12 13 14 14 15 14
20 FT wind gust.10 7 10 10 13 16 18 19 21 21 22 21
Ridge wind dir..W W W W W W W W W W W W
Ridge wind spd..15 10 15 15 15 15 20 20 20 20 25 20
Mix hgt (kft)...0.3 0.4 1.7 3.4 4.2 5.0 5.5 5.8 5.8 5.9 5.9 5.7
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.13 10 13 15 17 20 23 24 23 24 24 24
Haines index....2 2 2 2 2 2 2 2 2 2 2 2
SDspl kt-ft/10004 4 19 44 64 85 111 122 117 125 123 120
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 32.
Max humidity........55 percent.
Wind (20 ft)........West winds 6 to 13 mph with gusts to 19 mph
becoming west 4 to 7 mph by 2200.
Ridgetop wind.......West 15 to 20 mph decreasing to around 10 mph
by 2100.
Mixing height.......4500 ft AGL decreasing to 300 ft AGL by 2100.
Transport winds.....West 14 to 23 mph decreasing to 9 to 13 mph by
2100.
Smoke dispersal.....Good (99700 knot-ft) early in the evening
decreasing to poor (2600 knot-ft) by 2100.
Haines Index........2 or very low potential for large plume
dominated fire growth.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........36 44 34 17 11 11 16 14 16 25 27 29
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............50 48 45 41 39 39 37 36 36 35 35 34
RH..............34 37 40 45 48 49 54 55 54 51 51 50
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..13 12 10 7 6 4 4 5 5 5 6 5
20 FT wind gust.19 18 16 11 10 6 6 7 7 7 8 7
Ridge wind dir..W W W W W W W W W W W W
Ridge wind spd..20 20 15 15 15 10 10 10 10 10 10 10
Mix hgt (kft)...5.0 4.5 3.3 0.4 0.4 0.5 0.4 0.3 0.3 0.3 0.3 0.3
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.23 21 17 14 13 9 9 10 10 10 12 10
Haines index....2 2 2 2 2 2 2 2 2 2 2 2
SDspl kt-ft/1000100 81 50 5 5 4 3 3 3 3 3 3
.FRIDAY...
Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 59.
Min humidity........22 percent.
Wind (20 ft)........West winds 6 to 11 mph.
Ridgetop wind.......West 10 to 15 mph increasing to 15 to 20 mph by
1300.
Mixing height.......600 ft AGL increasing through the morning to 5500
ft AGL by 1400.
Transport winds.....West 12 to 20 mph.
Smoke dispersal.....Poor (3100 knot-ft) early in the morning gradually
increasing to good (92700 knot-ft) by 1400.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........23 12 6 5 13 9 5 4 2 1 2 4
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............33 37 41 44 51 53 54 56 57 58 58 58
RH..............48 44 37 31 29 26 24 24 23 23 23 22
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..6 6 6 7 8 9 10 11 11 11 11 10
20 FT wind gust.8 8 8 11 13 14 16 17 17 17 17 16
Ridge wind dir..W W W W W W W W W W W W
Ridge wind spd..10 10 10 15 15 15 15 20 20 20 20 15
Mix hgt (kft)...0.3 0.6 1.6 2.8 3.7 4.3 4.8 5.0 5.2 5.5 5.1 4.7
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.12 12 14 15 16 18 20 20 20 20 18 18
Haines index....3 3 3 3 3 3 4 4 4 4 4 4
SDspl kt-ft/10003 6 19 37 53 69 82 86 89 93 81 75
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...
Mostly clear. Lows in the mid 30s. Highs in the mid 60s. West
winds around 8 mph.
.SUNDAY...
Partly cloudy. Lows in the lower 40s. Highs in the lower 60s.
West winds around 11 mph.
.MONDAY...
Partly cloudy. Lows in the lower 40s. Highs in the upper 60s.
West winds around 10 mph.
$$
Forecaster...Rowe
Requested by...Ross Dary
Type of request...PRESCRIBED
.TAG 2415294.0/RIW
.DELDT 05/30/24
.FormatterVersion 2.0.0
.EMAIL rdary@blm.gov