FNUS73 KFSD 021114 FWSFSD SPOT FORECAST FOR BOOT LAKE N...U.S. FISH & WILDLIFE SERVICE NATIONAL WEATHER SERVICE SIOUX FALLS SD 614 AM CDT SAT MAY 2 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A RIDGE OF HIGH PRESSURE IN THE LOWER LEVELS WILL BE LOCATED FROM SOUTHWEST SOUTH DAKOTA...THROUGH NEBRASKA INTO SOUTHWEST IOWA TODAY...THEN SLOWLY LIFT NORTHEAST ACROSS THE REGION THROUGH SUNDAY NIGHT. MOSTLY SUNNY SKIES WILL DOMINATE THE AREA...WITH STRONG AFTERNOON MIXING AND MODEST TRANSPORT WINDS LEADING TO EXCELLENT SMOKE DISPERSAL TODAY. WITH THE STRONG MIXING AND DEEP LAYER OF DRY AIR JUST ABOVE THE SURFACE...AFTERNOON DEW POINTS ARE EXPECTED TO FALL INTO THE LOWER TO MID 20S. THIS WILL RESULT IN MINIMUM RELATIVE HUMIDITIES NEARING 20 PERCENT OR LOWER. SOME GUSTINESS COULD ALSO DEVELOP IN THE WINDS DURING PEAK MIXING IN THE MID TO LATE AFTERNOON...WITH BRIEF BUT OCCASIONAL GUSTS ABOVE 25 MPH. LIGHTER WINDS AND SOMEWHAT HIGHER AFTERNOON HUMIDITY VALUES ARE EXPECTED ON SUNDAY. .TODAY... MAX TEMPERATURE.....60-65. MIN HUMIDITY........23 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY.............CLR CLR CLR CLR CLR MCR MCR MCR MCR MCR MCR WEATHER COV..... WEATHER TYPE.... TEMP (F)........37 41 46 52 55 58 61 62 63 63 63 RH (%)..........72 65 55 46 38 30 25 23 23 23 23 DEWPOINT (F)....29 30 31 32 30 27 25 24 25 25 25 20 FT WIND DIR..W W WNW WNW WNW WNW W W W W W 20 FT WIND SPD..10 10 12 13 15 17 18 20 20 20 21 20 FT WIND GUST.12 12 15 16 20 25 30 30 30 30 30 DISPERSAL INDEX.PR PR FR GD EX EX EX EX EX EX EX CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 MIX HGT (KFT)...0.3 1.2 2.1 3.0 4.7 6.5 8.3 8.6 8.8 9.1 9.0 TRANSP WIND DIR.W W WNW WNW WNW WNW WNW W W W W TRANSP WIND SPD.12 14 16 18 20 21 21 21 22 22 21 HAINES INDEX....5 5 5 5 5 5 5 5 5 5 5 .TONIGHT... MIN TEMPERATURE.....37-42. MAX HUMIDITY........74-79 PERCENT. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY.............MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP (F)........63 57 48 45 43 41 RH (%)..........25 32 51 61 66 72 DEWPOINT (F)....26 27 31 32 32 32 20 FT WIND......W 20 W 12 WSW 7 WSW 7 WSW 8 W 8 20 FT WIND GUST.30 15 10 10 DISPERSAL INDEX.EXCEL POOR POOR POOR POOR POOR .SUNDAY... MAX TEMPERATURE.....63-68. MIN HUMIDITY........30 PERCENT. TIME (CDT) 6 AM 9 AM NOON 3 PM SKY.............MCLEAR MCLEAR MCLEAR MCLEAR WEATHER TYPE....NONE NONE NONE NONE TEMP (F)........40 51 62 66 RH (%)..........76 51 34 30 DEWPOINT (F)....33 33 33 33 20 FT WIND......WNW 8G10 NNW 9G10 NW 13G15 NW 14G20 DISPERSAL INDEX.POOR FAIR GOOD EXCEL CHC OF PCPN (%).0 0 0 0 MIX HGT (FT)....300 1900 5200 6800 TRANSPORT WIND..WNW 9 N 12 NNW 14 NW 13 HAINES INDEX....5 4 4 4 $$ FORECASTER...JH REQUESTED BY...ERIC EARHART TYPE OF REQUEST...PRESCRIBED .TAG 20090502.BOOTL.01/FSD