FNUS73 KFSD 171052 FWSFSD SPOT FORECAST FOR CAVOUR LAKE GPA...SDGF&P NATIONAL WEATHER SERVICE SIOUX FALLS SD 552 AM CDT MON MAY 17 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... LOW PRESSURE ACROSS THE CENTRAL PLAINS WILL CONTINUE TO SHIFT EAST AS HIGH PRESSURE BUILDS INTO THE UPPER MIDWEST FROM THE NORTH. THE ATMOSPHERE WILL BE FAIRLY MIXY TODAY WITH MIXING HEIGHTS NEAR 5000 FEET AGL. MIXING WILL DRAW DRIER AIR DOWN FROM ALOFT CAUSING THE RELATIVE HUMIDITY TO FALL TO NEAR 35 PERCENT TODAY. RELATIVELY LIGHT EAST TO SOUTHEAST FLOW WILL PREVAIL ACROSS THE AREA TODAY INTO TOMORROW BEFORE BREEZIER CONDITIONS DEVELOP ON WEDNESDAY. .TODAY... MAX TEMPERATURE.....71-76. MIN HUMIDITY........36 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......PC PC PC PC PC PC PC PC PC PC PC PC % SKY COVER.....38 41 45 48 45 43 40 40 40 40 37 35 WEATHER COV..... WEATHER TYPE.... TEMP............49 52 57 62 65 67 69 71 72 73 74 73 RH..............86 79 69 61 55 48 44 39 37 36 36 38 DEWPOINT........45 46 47 48 48 47 46 45 45 45 45 46 20 FT WIND DIR..ESE ESE SE SE SE ESE ESE ESE SE SE SE ESE 20 FT WIND SPD..6 5 3 3 5 6 7 7 7 7 7 8 20 FT WIND GUST. 5 5 10 SMOKE DISPERSAL.PR PR PR PR PR FR GD GD GD GD GD GD CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10 10 MIX HGT (KFT)...0.3 0.4 0.5 0.6 1.8 3.2 4.4 4.6 4.7 4.9 4.9 4.7 TRANSP WIND DIR.ESE ESE SE SE SE ESE ESE ESE SE SE SE SE TRANSP WIND SPD.7 6 6 6 8 10 13 13 13 12 10 10 HAINES INDEX....5 5 5 5 5 5 5 5 5 5 5 5 .TONIGHT... MIN TEMPERATURE.....44-49. MAX HUMIDITY........93 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......PCLDY PCLDY MCLEAR MCLEAR MCLEAR CLEAR % SKY COVER.....32 29 21 13 6 1 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............72 63 56 52 49 47 RH..............40 55 69 81 86 88 DEWPOINT........46 47 46 46 45 44 20 FT WIND......ESE 8 SE 6 SE 5 SE 7 SE 6 SE 5 20 FT WIND GUST.10 SMOKE DISPERSAL.FAIR POOR POOR POOR POOR POOR CHC OF PCPN (%).0 0 0 0 0 0 MIX HGT (FT)....4400 300 300 300 300 300 TRANSPORT WIND..SE 9 SE 6 SE 6 SE 8 SE 7 SE 6 HAINES INDEX....5 5 5 4 4 4 $$ FORECASTER...BT REQUESTED BY...ANDY GABBBERT TYPE OF REQUEST...PRESCRIBED .TAG 20100517.CAVOU.01/FSD