####018007734#### FNUS75 KRIW 061620 FWSRIW Spot Forecast for Rock Tunp Pile Burn...Bureau of Land Management BLM National Weather Service Riverton WY 1020 AM MDT Mon May 6 2024 Forecast is based on ignition time of 1000 MDT on May 06. If conditions become unrepresentative, contact the National Weather Service .DISCUSSION... A large area of low pressure over northeast Wyoming late Monday morning will spin slowly northeast through Tuesday. This low pressure system eventually spins back south through Wyoming Tuesday night and Wednesday. Overall, the weather will be cooler than normal, windy, and unsettled through midweek. Westerly wind picks-up between 0800 and 1000 Tuesday and steadily increases into the afternoon. Speeds should be a tad less than those seen today (Monday). The best chance for any snow accumulation will be late tonight through the day Tuesday. However, the flow is not favorable for much snowfall. ...Thunderstorms imply strong gusty and erratic winds... ...Haines index is high level haines both day and night... .REST OF TODAY... Sky/weather.........Cloudy with a chance of snow showers. CWR.................20 percent. Chance of pcpn......40 percent. LAL.................1. Max temperature.....Around 33. Min humidity........62-65 percent. Wind (20 ft)........West wind 17 to 26 mph with gusts around 35 mph. Ridgetop wind.......West 35 to 40 mph. Mixing height.......Around 3000 ft AGL. Transport winds.....West 30 mph. Smoke dispersal.....Good. TIME (MDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........93 94 94 92 90 88 86 83 Weather cov.....CHC CHC CHC CHC CHC CHC SCH Weather type....SW SW SW SW SW SW SW Tstm cov........ CWR.............70 70 0 0 0 0 0 0 Chc of pcpn (%).40 40 40 40 40 30 20 10 LAL.............1 1 1 1 1 1 1 1 Temp............29 29 30 30 31 32 32 33 RH..............80 78 77 75 73 71 69 65 20 FT wind dir..W W W W W W W W 20 FT wind spd..17 22 26 26 24 24 24 24 20 FT wind gust.26 33 38 38 36 36 37 36 Ridge wind dir..W W W W W W W W Ridge wind spd..35 35 40 40 40 40 40 40 Mix hgt (kft)...2.3 2.3 3.1 3.1 3.1 3.3 3.3 3.3 Transp wind dir.W W W W W W W W Transp wind spd.33 33 38 38 38 39 39 39 SDspl kt-ft/100065 65 102 102 102 113 113 113 .TONIGHT... Sky/weather.........Mostly cloudy (65-75 percent) with a chance of snow. Snow becoming likely after 0300. CWR.................0 percent until midnight, then increasing to 20 percent by sunrise. Chance of pcpn......30 percent, then becoming 60 percent after 0300. LAL.................1. Min temperature.....Around 23. Max humidity........88-91 percent. Wind (20 ft)........West wind 15 to 20 mph with gusts to around 30 mph until 1900, then gradually decreasing to 10 to 15 mph by 2100. Occasional gusts around 20 mph after 2100. Ridgetop wind.......West 25 to 35 mph. Mixing height.......3000 ft AGL until 1900, then decreasing to less than 1000 ft AGL by 2200. Transport winds.....West around 20 mph. Smoke dispersal.....Good until 1900, then becoming Poor by 2200. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........80 72 63 54 62 69 77 77 83 89 86 82 Weather cov..... SCH SCH CHC CHC LKY LKY LKY Weather type.... SW SW SW SW SW SW SW Tstm cov........ CWR.............0 0 0 0 0 0 10 10 10 20 20 20 Chc of pcpn (%).0 0 10 10 10 20 20 40 50 60 60 60 LAL.............2 2 2 2 2 2 1 1 1 1 1 1 Temp............33 32 32 31 30 29 28 27 26 26 25 24 RH..............62 64 65 67 72 77 82 85 86 88 89 90 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..22 17 13 8 7 7 8 11 10 12 14 16 20 FT wind gust.33 26 19 13 11 11 12 16 14 17 19 22 Ridge wind dir..W W W W W W W W W W W W Ridge wind spd..35 35 35 25 25 25 20 20 20 20 20 20 Mix hgt (kft)...3.8 3.8 3.8 1.0 1.0 1.0 0.8 0.8 0.8 1.0 1.0 1.0 Transp wind dir.W W W W W W W W W W W W Transp wind spd.38 38 38 23 23 23 20 20 20 22 22 22 SDspl kt-ft/1000127 127 127 20 20 20 13 13 13 18 18 18 .TUESDAY... Sky/weather.........Mostly cloudy (70-80 percent) with snow increasing through the day. CWR.................10 percent. Chance of pcpn......60 percent. LAL.................1. Max temperature.....Around 30. Min humidity........57-60 percent. Wind (20 ft)........West wind 10 to 15 mph, increasing between 0800 and 1000 to 17 to 26 mph with gusts around 32 mph. Wind increasing to 20 to 25 mph with gusts around 36 mph during the afternoon. Ridgetop wind.......West 25 to 35 mph. Mixing height.......Less than 1000 ft AGL until 0800, then gradually increasing to 5000 ft AGL. Transport winds.....West 20 to 30 mph. Smoke dispersal.....Poor until 0800, then becoming Good around 1200, then increasing to Very Good after 1400. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........79 77 75 73 75 77 79 77 75 73 74 76 Weather cov.....LKY LKY LKY LKY LKY CHC CHC CHC LKY LKY CHC CHC Weather type....SW SW SW SW SW SW SW SW SW SW SW SW Tstm cov........ CWR.............20 20 20 20 20 30 30 30 30 30 30 30 Chc of pcpn (%).60 60 60 60 60 50 50 50 60 60 50 30 LAL.............1 1 1 1 1 1 1 1 1 1 1 1 Temp............23 24 25 26 26 26 26 27 27 28 28 27 RH..............91 87 83 79 74 68 63 61 59 57 59 60 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..17 18 20 21 22 23 24 25 26 27 27 25 20 FT wind gust.25 26 29 30 31 32 33 35 36 38 38 35 Ridge wind dir..W W W W W W W W W W W W Ridge wind spd..30 30 30 30 30 30 35 35 35 35 35 35 Mix hgt (kft)...1.4 1.4 1.4 3.6 3.6 3.6 4.6 4.8 5.0 5.0 5.0 5.0 Transp wind dir.W W W W W W W W W W W W Transp wind spd.23 23 23 25 25 25 25 27 27 27 27 27 SDspl kt-ft/100034 34 34 101 101 101 110 130 135 135 135 135 .FORECAST DAYS 3 THROUGH 5... .TUESDAY NIGHT... Mostly cloudy with a chance of snow. Lows in the upper 20s. West wind 10 to 15 mph. .WEDNESDAY... Mostly cloudy with a chance of snow showers and isolated thunderstorms. Highs in the mid 30s. Lows in the upper 20s. West wind around 20 mph. .THURSDAY... Mostly cloudy with a chance of snow showers and isolated thunderstorms during the daylight hours. Highs in the mid 40s. Lows in the mid 20s. Northerly wind around 10 mph. .FRIDAY... Partly cloudy with a slight chance of showers. Warmer. Highs in the lower 50s. Lows in the upper 20s. East wind around 10 mph. $$ Forecaster...CNJ Requested by...Jeffrey Priebe Type of request...PRESCRIBED .TAG 2413263.0/RIW .DELDT 05/06/24 .FormatterVersion 2.0.0 .EMAIL jpriebe@blm.gov