552 FNUS75 KCYS 291924 FWSCYS Spot Forecast for Riner...Casper Dispatch National Weather Service Cheyenne WY 124 PM MDT Sun Jun 29 2025 If conditions become unrepresentative, contact the National Weather Service at (307) 772-2227 .DISCUSSION... Slightly cooler temperatures are expected today behind a weak cold front. Dry conditions will prevail through Monday afternoon with low relative humidities. Winds will be a bit gusty in the afternoons and early evenings, especially today. .REST OF TODAY... Sky/weather.........Mostly sunny (20-30 percent). CWR.................2 percent. LAL................. Max temperature.....Around 83. Min humidity........16 percent. Wind (20 ft)........West winds 14 to 15 mph. Mixing height.......13700 ft AGL. Transport winds.....West around 23 mph. Smoke dispersal.....Excellent (266300 knot-ft). Haines Index........MISSING. TIME (MDT) 4PM 5PM Sky (%).........25 29 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 LAL.............M M Temp............81 82 RH..............16 16 20 FT wind dir..W W 20 FT wind spd..14 15 20 FT wind gust.25 26 Mix hgt (kft)...14 13 Transp wind dir.W W Transp wind spd.23 23 Haines index....M M SDspl kt-ft/1000275 266 .TONIGHT... Sky/weather.........Partly cloudy (20-30 percent). CWR.................2 percent. LAL................. Min temperature.....Around 51. Max humidity........89 percent. Wind (20 ft)........West winds 10 to 15 mph shifting to the northeast 10 to 14 mph in the late evening and overnight. Mixing height.......8200 ft AGL decreasing to 600 ft AGL early in the evening. Transport winds.....West 15 to 23 mph shifting to the northeast 15 to 20 mph in the late evening and overnight. Smoke dispersal.....Excellent (155000 knot-ft) decreasing to poor (7900 knot-ft) early in the evening. Haines Index........MISSING. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........41 31 25 18 15 12 10 13 19 23 19 19 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 LAL.............M M M M M M M M M M M M Temp............80 78 76 68 64 60 57 57 55 53 52 52 RH..............17 19 21 28 37 49 64 69 77 86 89 86 20 FT wind dir..W W W W NE NE NE NE NE NE NE NE 20 FT wind spd..15 13 12 10 10 12 14 13 12 12 10 10 20 FT wind gust.25 23 21 18 18 22 24 24 22 20 18 18 Mix hgt (kft)...12 8.2 1.3 0.7 1.0 0.8 1.0 0.7 0.6 0.8 0.7 0.6 Transp wind dir.W W W W N NE NE NE NE NE E E Transp wind spd.23 22 17 15 16 17 20 20 20 20 17 15 Haines index....M M M M M M M M M M M M SDspl kt-ft/1000237 155 20 9 13 13 18 13 10 14 11 8 .MONDAY... Sky/weather.........Sunny (10-20 percent). CWR.................0 percent. LAL................. Max temperature.....Around 80. Min humidity........20 percent. Wind (20 ft)........Northeast winds 7 to 12 mph. Mixing height.......9900 ft AGL. Transport winds.....East 10 to 18 mph shifting to the north 9 to 10 mph late in the afternoon. Smoke dispersal.....Poor (8800 knot-ft) early in the morning increasing to good (88800 knot-ft) in the afternoon. Haines Index........MISSING. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........22 24 9 5 4 5 5 7 8 9 7 8 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 LAL.............M M M M M M M M M M M M Temp............51 53 57 59 65 68 71 74 77 78 78 80 RH..............89 86 77 72 56 49 39 32 26 23 22 20 20 FT wind dir..NE NE E E E E NE NE NE N N NE 20 FT wind spd..10 10 10 12 10 9 8 7 7 7 8 8 20 FT wind gust.18 18 18 20 18 17 15 14 14 14 15 16 Mix hgt (kft)...0.6 1.3 1.6 2.3 3.0 5.3 6.6 7.6 8.9 9.6 9.9 9.9 Transp wind dir.E E E E E E E NE N N N N Transp wind spd.16 18 18 16 14 12 10 10 10 9 10 10 Haines index....M M M M M M M M M M M M SDspl kt-ft/10009 20 26 33 37 53 59 68 80 77 89 89 $$ Forecaster...Rubin Requested by...Conner Erickson Type of request...WILDFIRE .TAG 2516874.0/CYS .DELDT 06/29/25 .FormatterVersion 2.0.0 .EMAIL wycpc@firenet.gov