FNUS73 KFSD 051429 FWSFSD SPOT FORECAST FOR 5-MILE CORNER S...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 929 AM CDT MON APR 5 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...LIGHT WINDS...FAVORING A SOUTHWEST DIRECTION THROUGH MID MORNING...WILL BE VARIABLE ACROSS THE BURN AREA AROUND EXPECTED IGNITION TIME AS A WEAK RIDGE OF HIGH PRESSURE SLIDES SLOWLY TO THE EAST. EVENTUALLY...WINDS WILL BEGIN TO FAVOR AN EASTERLY COMPONENT BY AFTERNOON...AND WILL INCREASE BY LATE AFTERNOON. A WEAK DISTURBANCE ALOFT WILL MOVE ACROSS THE AREA LATE THIS AFTERNOON...AND WHILE FAIRLY DRY AIR IS IN PLACE AT LOW LEVELS...THERE WILL BE A CHANCE FOR SCATTERED LIGHT SHOWERS BY LATE AFTERNOON. WITH THE DRY AIR AT LOW LEVELS...THERE IS RISK FOR SOME ERRATIC AND GUSTY WINDS NEAR ANY OF THESE SHOWERS DURING THE LATE AFTERNOON. A BETTER CHANCE FOR RAINFALL IS EXPECTED BY LATE TONIGHT. .TODAY... MAX TEMPERATURE.....57-62. MIN HUMIDITY........39 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......MC MC MC MC MC MC MC MC MC MC MC MC % SKY COVER.....57 60 63 65 69 72 75 77 78 80 79 79 WEATHER COV..... CHC CHC CHC WEATHER TYPE.... RW RW RW TEMP............36 37 42 47 51 53 55 56 58 59 59 58 RH..............80 79 70 62 55 48 42 40 39 40 41 43 DEWPOINT........31 31 33 35 35 34 32 32 33 35 35 36 20 FT WIND DIR..SW SW SW SW VRB SW SE ESE ENE ESE E E 20 FT WIND SPD..5 5 3 3 3 2 3 5 7 12 13 14 20 FT WIND GUST. 15 20 20 SMOKE DISPERSAL.PR PR PR PR PR PR PR PR FR GD GD EX CHC OF PCPN (%).0 0 0 0 0 0 10 10 10 30 40 40 MIX HGT (KFT)...0.3 0.5 0.7 0.9 1.6 2.3 3.0 3.3 3.6 3.9 4.2 4.6 TRANSP WIND DIR.SW SW SW WSW VRB SW SE E E ESE ESE E TRANSP WIND SPD.8 9 3 3 3 3 4 5 9 14 17 21 HAINES INDEX....5 5 5 5 5 5 5 5 6 6 5 4 .TONIGHT... MIN TEMPERATURE.....37-42. MAX HUMIDITY........85 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......MCLDY MCLDY MCLDY MCLDY MCLDY MCLDY % SKY COVER.....78 77 77 76 80 83 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............57 53 49 45 43 42 RH..............45 54 65 76 81 82 DEWPOINT........36 37 38 38 38 37 20 FT WIND......E 15 ENE 14 ENE 15 ENE 17 ENE 16 ENE 15 20 FT WIND GUST.20 20 20 25 25 20 SMOKE DISPERSAL.EXCEL EXCEL GOOD GOOD GOOD FAIR CHC OF PCPN (%).40 40 30 50 50 50 .TUESDAY... MAX TEMPERATURE.....47-52. MIN HUMIDITY........73 PERCENT. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY COVER.......MCLDY MCLDY CLOUDY CLOUDY % SKY COVER.....86 87 88 92 WEATHER COV.....CHANCE CHANCE LIKELY LIKELY WEATHER TYPE....RAIN RAIN RAIN RAIN TEMP............41 46 49 49 RH..............85 75 73 77 DEWPOINT........37 38 41 42 20 FT WIND......NE 15G20 NE 17G25 NE 20G30 NE 22G30 SMOKE DISPERSAL.FAIR GOOD EXCEL EXCEL CHC OF PCPN (%).40 40 70 70 MIX HGT (FT)....800 2400 2900 2800 TRANSPORT WIND..ENE 28 ENE 32 NE 33 NE 37 HAINES INDEX....2 2 2 2 $$ FORECASTER...CHAPMAN REQUESTED BY...ERIC EARHART TYPE OF REQUEST...PRESCRIBED .TAG 20100405.5MILE.01/FSD