FNUS73 KUNR 231434 FWSUNR Spot Forecast for Rock Creek...USFS National Weather Service Rapid City SD 834 AM MDT Thu Apr 23 2026 Forecast is based on forecast start time of 0900 MDT on April 23. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION...Gusty winds are expected to stay out of the northwest to north-northwest this morning and afternoon over the spot location. Gusts up to 30-40 mph will be possible through late afternoon, and then begin diminishing after that. Moisture in the region today will temper RH's, with min RH this afternoon expected around 40% and good recovery tonight to around 85%. Multiple chances for light precipitation are expected over the spot location over the next few days. The first band of precipitation is moving through northeastern WY now (0830MST), but models show isolated to scattered precipitation on and off over the spot location throughout today and Friday. Precipitation may come as snow later this evening and overnight as temperatures cool. No lightning is expected with these showers. Total precip accumulations 0.1-0.2" may be possible over the spot area between today and Friday. .REST OF TODAY... Sky/weather.........Mostly cloudy (70-80 percent). Scattered rain showers late in the morning, then isolated rain showers early in the afternoon. Scattered rain showers late in the afternoon. Max temperature.....Around 51. Min humidity........39 percent. Wind (20 ft)........Breezy. Northwest winds 20 to 25 mph. Gusts up to 40 mph decreasing to 26 mph late in the afternoon. CWR.................30 percent. Mixing height.......4800 to 5300 ft agl. Transport winds.....Northwest 40 to 50 mph decreasing to 30 to 40 mph late in the afternoon. Smoke dispersal.....Excellent. TIME (MDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........78 82 84 82 81 79 76 66 70 Weather cov.....SCT SCT SCT ISO ISO SCT SCT SCT SCT Weather type....RW RW RW RW RW RW RW RW RW Tstm cov........ CWR.............30 30 30 30 30 30 30 30 30 Temp............43 43 44 47 50 51 51 51 48 RH..............65 70 66 57 46 42 41 41 44 20 FT wind dir..NW NW NW NW NW NW NW NW NW 20 FT wind spd..23 24 25 25 25 24 23 22 20 20 FT wind gust.37 37 37 38 35 33 32 30 26 Mix hgt (kft)...3.3 3.1 3.4 4.2 4.8 5.2 5.3 5.2 4.9 Transp wind dir.NW NW NW NW NW NW NW NW NW Transp wind spd.47 47 44 40 38 36 33 31 29 .TONIGHT... Sky/weather.........Cloudy (85-95 percent). Rain likely in the evening. Snow likely through the night. Min temperature.....Around 27. Max humidity........87 percent. Wind (20 ft)........North winds 10 to 20 mph shifting to the west around 10 mph after 3 am. Gusts up to 24 mph. CWR.................55 percent. Mixing height.......1100 to 1600 ft agl. Transport winds.....Northwest 20 to 30 mph decreasing to around 15 mph after 3 am. Smoke dispersal.....Poor. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........89 89 90 95 96 95 95 90 83 82 82 83 Weather cov.....LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY Weather type....RN RN SN SN SN SN SN SN SN SN SN SN Tstm cov........ CWR.............50 50 50 50 50 50 50 50 50 50 50 50 Temp............46 43 39 37 35 34 32 31 30 29 28 27 RH..............42 45 54 66 74 74 72 75 80 78 83 81 20 FT wind dir..N N N N N N NW NW NW NW NW W 20 FT wind spd..16 14 13 13 13 13 13 12 12 10 10 9 20 FT wind gust.24 22 23 21 21 21 21 20 20 18 16 15 Mix hgt (kft)...4.8 4.5 3.2 2.4 2.3 2.0 2.4 2.1 1.7 1.3 1.2 1.1 Transp wind dir.NW NW NW NW NW NW NW NW NW NW NW NW Transp wind spd.26 25 25 24 23 22 21 20 18 17 15 14 .FRIDAY... Sky/weather.........Mostly cloudy (75-85 percent). Chance of snow through the day. Slight chance of rain late in the afternoon. Max temperature.....Around 44. Min humidity........43 percent. Wind (20 ft)........West winds around 10 mph shifting to the south late in the morning, then shifting to the west early in the afternoon shifting to the northwest late in the afternoon. Gusts up to 20 mph. CWR.................30 percent. Mixing height.......6700 to 7200 ft agl. Transport winds.....West 15 to 25 mph shifting to the northwest around 25 mph late in the afternoon. Smoke dispersal.....Good increasing to very good in the afternoon. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........83 96 91 85 82 79 75 70 65 60 63 66 Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC Weather type....SN SN SN SN SN SN SN SN SN SN SN SN Tstm cov........ CWR.............30 30 30 30 30 30 30 30 30 30 30 30 Temp............27 27 28 30 33 36 38 40 42 43 43 42 RH..............83 87 81 72 63 56 52 48 45 43 43 43 20 FT wind dir..W W W NW W S S S W W NW N 20 FT wind spd..8 7 7 8 8 9 9 10 10 12 12 12 20 FT wind gust.14 14 13 13 14 15 16 17 18 20 20 20 Mix hgt (kft)...1.0 1.7 2.3 2.9 4.3 5.7 7.1 7.1 7.2 7.2 6.6 6.0 Transp wind dir.W NW NW NW W W W W W W NW NW Transp wind spd.13 13 12 13 14 16 20 21 21 21 23 23 $$ Forecaster...AD Requested by...Casper Dispatch Type of request...WILDFIRE .TAG 2611446.1/UNR .DELDT 04/23/26 .FormatterVersion 2.0.0 .EMAIL nathaniellogemann16@gmail.com