FNUS73 KFSD 211212 FWSFSD SPOT FORECAST FOR KOUPAL WPA RX...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 712 AM CDT FRI MAY 21 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WINDS WILL BE RELATIVELY LIGHT AND VARIABLE THIS MORNING UNDER SURFACE HIGH PRESSURE. WINDS WILL BEGIN TO INCREASE FROM THE SOUTHEAST THIS AFTERNOON AS A LOW PRESSURE SYSTEM DEVELOPS IN THE WEST CENTRAL PLAINS. THESE INCREASING SOUTHEAST WINDS WILL SPREAD EASTWARD DURING THE NIGHT...AND WINDS ON SATURDAY WILL BE IN THE 20 TO 30 MPH RANGE THROUGHOUT THE AREA. A FEW SCATTERED THUNDERSTORMS WILL BE POSSIBLE OVERNIGHT TONIGHT...AND AGAIN SATURDAY NIGHT INTO SUNDAY. WARMER AND MORE HUMID AIR WILL MOVE IN FOR THE WEEKEND...WITH HIGHS FORECAST TO REACH THE MID TO UPPER 80S ON SATURDAY AND SUNDAY. .TODAY... MAX TEMPERATURE.....75-80. MIN HUMIDITY........40 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.....48 47 46 45 44 43 41 41 41 40 40 40 WEATHER COV..... WEATHER TYPE.... TEMP............51 54 59 63 67 70 73 75 77 77 78 78 RH..............95 88 77 70 62 54 47 44 41 42 40 40 20 FT WIND DIR..W WSW SW SW S SE ESE ESE SE SE SE SE 20 FT WIND SPD..3 3 3 5 5 6 7 8 9 10 12 12 20 FT WIND GUST.5 5 5 10 10 15 15 15 SMOKE DISPERSAL.PR PR PR PR PR FR FR FR FR FR FR FR CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10 10 MIX HGT (KFT)...0.3 1.1 1.8 2.5 3.3 4.0 4.7 4.6 4.5 4.4 4.1 3.9 TRANSP WIND DIR.W SW SE E E E E E ESE ESE SE SE TRANSP WIND SPD.5 5 5 5 6 6 6 6 6 6 7 9 HAINES INDEX....3 3 2 2 2 2 2 2 3 3 3 4 .TONIGHT... MIN TEMPERATURE.....54-59. MAX HUMIDITY........96 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......PCLDY PCLDY MCLDY MCLDY MCLDY MCLDY % SKY COVER.....39 46 52 59 60 62 WEATHER COV..... ISOLTD SCTTRD SCTTRD SCTTRD WEATHER TYPE....NONE NONE RNSHWR RNSHWR RNSHWR RNSHWR TEMP............76 71 66 64 62 59 RH..............43 53 63 71 77 89 20 FT WIND......SE 13 SE 13 SE 14 SE 15 SE 17 SSE 18 20 FT WIND GUST.15 15 20 20 25 30 SMOKE DISPERSAL.FAIR FAIR POOR POOR POOR POOR .SATURDAY... MAX TEMPERATURE.....84-89. MIN HUMIDITY........42 PERCENT. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY COVER.......MCLDY MCLDY PCLDY PCLDY % SKY COVER.....64 52 41 43 WEATHER COV.....ISOLTD WEATHER TYPE....RNSHWR NONE NONE NONE TEMP............57 68 81 86 RH..............96 74 49 43 20 FT WIND......SSE 18G30 S 24G30 S 26G35 S 25G35 SMOKE DISPERSAL.POOR GOOD EXCEL EXCEL CHC OF PCPN (%).20 10 10 10 MIX HGT (FT)....300 1400 2700 3500 TRANSPORT WIND..SSE 22 SSE 38 S 35 S 32 HAINES INDEX....4 2 2 3 $$ FORECASTER...JH REQUESTED BY...CHARLES FROHME TYPE OF REQUEST...PRESCRIBED .TAG 20100521.KOUPA.01/FSD