FNUS73 KABR 192054 FWSABR Spot Forecast for Hedman GPA RX...Game Fish and Parks National Weather Service Aberdeen SD 354 PM CDT Tue May 19 2026 Forecast is based on ignition time of 1600 CDT on May 19. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Temperatures will fall below freezing tonight into early Wednesday morning. Any overnight inversion under surface high pressure should break by mid morning as the high moves off to the east and southerly return flow increases. South winds will gust to around 20 mph by afternoon. .TONIGHT... Sky/weather.........Mostly cloudy (60-70 percent) then becoming mostly clear (15-25 percent). Patchy frost overnight. Areas of frost after 3 am. CWR.................1 percent. Chance of pcpn......0 percent. Chance of lightning.0 percent. Min temperature.....Around 31. Max humidity........100 percent. Wind (20 ft)........Northwest winds 6 to 13 mph early in the evening becoming light, then becoming south 5 to 7 mph overnight. Mixing height.......400-4900 ft agl. Transport winds.....Northwest 10 to 18 mph shifting to the north 6 to 7 mph late in the evening, then shifting to the northeast around 7 mph late in the evening shifting to the south 6 to 8 mph overnight. Smoke dispersal.....Good (78600 knot-ft) early in the evening decreasing to poor (39200 knot-ft) late in the night decreasing to poor (1800 knot-ft) early in the evening. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........56 56 78 71 63 33 12 10 13 13 14 14 Weather cov..... PTY PTY PTY ARS ARS Weather type.... FST FST FST FST FST Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............47 47 47 44 41 39 38 37 36 35 35 34 RH..............58 60 65 76 82 89 89 92 96 100 96 100 20 FT wind dir..NW NW NW N VRB VRB VRB S S S S S 20 FT wind spd..13 12 9 6 3 3 3 5 5 6 6 7 20 FT wind gust.18 16 15 9 6 6 6 7 8 9 9 10 Mix hgt (kft)...4.9 3.0 1.3 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Smoke Dispersal.GD PR PR PR PR PR PR PR PR PR PR PR .WEDNESDAY... Sky/weather.........Mostly sunny (5-15 percent). Widespread frost early in the morning, then patchy frost early in the morning. CWR.................0 percent. Chance of pcpn......0 percent. Chance of lightning.0 percent. Max temperature.....Around 62. Min humidity........39 percent. Wind (20 ft)........South winds 7 to 14 mph. Mixing height.......300-5600 ft agl. Transport winds.....South 9 to 17 mph. Smoke dispersal.....Poor (2700 knot-ft) increasing to good (66600 knot-ft). TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........12 21 10 4 3 2 3 5 11 8 7 8 Weather cov.....WID PTY Weather type....FST FST Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............32 35 39 44 50 53 55 56 58 60 60 61 RH..............100 100 92 76 61 54 53 51 47 44 44 42 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..7 8 9 9 10 10 12 13 1314 13 14 20 FT wind gust.12 14 15 16 17 18 20 22 22 23 23 23 Mix hgt (kft)...0.3 0.4 0.6 1.3 2.6 3.4 4.1 4.5 5.1 5.4 5.6 5.4 Smoke Dispersal.PR PR PR PR PR PR FR FR GD GD GD GD $$ Forecaster...Wise Requested by...Patrick Tate Type of request...PRESCRIBED .TAG 2614057.0/ABR .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL patrick.tate@state.sd.us