FNUS73 KFSD 071242 FWSFSD SPOT FORECAST FOR PAYNE WUI RX BURN...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 742 AM CDT THU MAY 7 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... AN UPPER AIR DISTURBANCE WILL BRING SCATTERED SHOWERS AND A FEW THUNDERSTORMS TO THIS AREA THROUGH MID MORNING...WITH WETTING RAINS IN MINER COUNTY LIKELY STAYING LESS THAN A TENTH OF AN INCH. AFTER MID MORNING...IT APPEARS THE SURFACE WINDS WILL SETTLE ON A WEST DIRECTION...POSSIBLY MEANDERING EITHER SIDE OF WEST TO PRODUCE A WEST TO SOUTHWEST...TO WEST TO NORTHWEST DIRECTION. BUT SPEEDS THIS AFTERNOON WILL PROBABLY REMAIN RATHER MODEST...AT ONLY ABOUT 10 TO 15 MPH. ANOTHER SPRING TIME WELL MIXED DAY...SO RH VALUES WILL FALL INTO THE MID 30S PERCENT BY LATE AFTERNOON. ANOTHER STRONGER DISTURBANCE WILL BRING MORE WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS MOVING EAST OVER THE AREA LATE TONIGHT THROUGH FRIDAY. THIS SYSTEM WILL BE FOLLOWED BY A BRISK NORTHWEST FLOW OF COOL AIR FROM FRIDAY THROUGH SATURDAY NIGHT. .TODAY... MAX TEMPERATURE.....70-75. MIN HUMIDITY........36 PERCENT. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY.............MC MC PC PC PC PC PC PC PC PC WEATHER COV.....OCL SCT WEATHER TYPE....RW RW TEMP (F)........52 54 56 59 63 66 68 70 71 72 RH (%)..........74 69 62 55 48 43 40 38 36 35 20 FT WIND DIR..W WNW WNW WNW W W W W W W 20 FT WIND SPD..12 14 16 16 16 15 14 14 13 13 20 FT WIND GUST.15 20 25 25 25 20 15 15 15 15 DISPERSAL INDEX.PR PR PR FR GD GD EX EX EX EX CHC OF PCPN (%).80 40 10 10 10 10 10 10 10 10 MIX HGT (KFT)...0.5 0.7 0.9 2.1 3.2 4.4 5.5 6.5 7.6 5.9 TRANSP WIND DIR.WSW W W W W W W W W W TRANSP WIND SPD.8 8 9 12 14 15 16 16 16 15 HAINES INDEX....5 4 4 4 5 5 5 5 5 5 .TONIGHT... MIN TEMPERATURE.....41-46. MAX HUMIDITY........86 PERCENT. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY.............PCLDY PCLDY PCLDY PCLDY PCLDY PCLDY WEATHER COV..... SCTTRD SCTTRD WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR TEMP (F)........71 64 57 53 50 47 RH (%)..........36 46 59 66 74 79 20 FT WIND......W 12 W 9 W 7 W 5 W 3 W 2 20 FT WIND GUST.15 10 10 5 5 DISPERSAL INDEX.GOOD FAIR POOR POOR POOR POOR CHC OF PCPN (%).10 10 10 10 30 30 .FRIDAY... MAX TEMPERATURE.....57-62. MIN HUMIDITY........55 PERCENT. TIME (CDT) 6 AM 9 AM NOON 3 PM SKY.............MCLDY MCLDY MCLDY MCLDY WEATHER COV.....SCTTRD SCTTRD SCTTRD SCTTRD WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP (F)........45 49 55 58 RH (%)..........86 77 66 59 20 FT WIND......W 3G5 WNW 8G10 WNW 14G15 WNW 15G20 DISPERSAL INDEX.POOR POOR GOOD GOOD CHC OF PCPN (%).30 50 50 50 MIX HGT (FT)....300 600 2700 4300 TRANSPORT WIND..W 5 WNW 12 NW 16 WNW 17 HAINES INDEX....4 5 4 4 $$ FORECASTER...MJF REQUESTED BY...CHARLES FROHME TYPE OF REQUEST...PRESCRIBED .TAG 20090507.PAYNE.01/FSD