FNUS73 KFSD 101140 FWSFSD SPOT FORECAST FOR HARDER LAKE N...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 640 AM CDT SUN MAY 10 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WEAK HIGH PRESSURE ACROSS NORTHEAST SOUTH DAKOTA WILL SLOWLY SETTLE THROUGH SOUTHWEST MINNESOTA THIS AFTERNOON. WINDS HAVE DECOUPLED THIS MORNING...BUT DAYTIME HEATING SHOULD START TO PRODUCE A MORE STEADY NORTHWEST WIND BY 10 TO 11 AM...CORRESPONDING TO DEEPER MIXING AND TRANSITION TO GOOD SMOKE DISPERSION. WINDS SHOULD BECOME GUSTY MIDDAY THROUGH LATE AFTERNOON...WITH DIRECTION MAINTAINING FAIRLY STEADY. .TODAY... MAX TEMPERATURE.....55-60. MIN HUMIDITY........34 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY.............CLR MCR PC PC PC PC PC PC PC PC PC WEATHER COV.....PTY WEATHER TYPE....FST TEMP (F)........34 38 44 49 52 54 56 57 58 59 59 RH (%)..........92 85 73 61 50 43 37 35 35 34 33 DEWPOINT (F)....32 34 36 36 34 32 30 30 30 31 30 20 FT WIND DIR..NW NW NNW NNW NNW NNW NW NW NW NW NW 20 FT WIND SPD..6 7 9 10 12 13 14 14 14 13 13 20 FT WIND GUST. 15 18 18 19 20 17 15 DISPERSAL INDEX.PR PR FR FR GD GD GD GD EX EX EX CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 MIX HGT (KFT)...0.3 1.1 2.0 2.9 3.1 3.4 3.6 4.3 5.0 5.7 5.8 TRANSP WIND DIR.NW NW NW NNW NW NW NW NW NW NW NW TRANSP WIND SPD.6 7 9 12 14 16 17 17 16 15 14 HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 .TONIGHT... MIN TEMPERATURE.....37-42. MAX HUMIDITY........75 PERCENT. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY.............PCLDY PCLDY PCLDY PCLDY PCLDY PCLDY WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP (F)........58 51 44 41 41 40 RH (%)..........34 44 60 69 70 74 DEWPOINT (F)....30 30 31 32 32 32 20 FT WIND......NNW 12 NW 8 W 3 SW 3 SSW 5 SSW 6 20 FT WIND GUST. 10 5 5 DISPERSAL INDEX.GOOD FAIR POOR POOR POOR POOR CHC OF PCPN (%).0 0 0 0 10 10 $$ FORECASTER...CHAPMAN REQUESTED BY...ERIC EARHART TYPE OF REQUEST...PRESCRIBED .TAG 20090510.HARDE.01/FSD