FNUS73 KFSD 111332 FWSFSD SPOT FORECAST FOR BROKEN KETTLE...THE NATURE CONSERVANCY NATIONAL WEATHER SERVICE SIOUX FALLS SD 832 AM CDT MON MAY 11 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE WILL BE SITUATED EAST OF THIS AREA TODAY... WHICH WILL PROVIDE A SOUTHERLY SUFACE WIND. BY LATE IN THE DAY...THE SURFACE MAY START GUSTING JUST ABOVE 20 MPH DUE TO A TIGHTENING SURFACE PRESSURE GRADIENT AND SOME STRONGER WINDS ALOFT MOVING IN FROM THE WEST. OTHERWISE WE ARE LOOKING AT A PRETTY TYPICAL SPRING WEATHER DAY. SMOKE DISPERSION WILL BE GOOD TO EXCELLENT BY MIDDAY WITH SMOKE DRIFTING FROM SOUTH TO NORTH. TUESDAY WILL BE A WINDIER DAY AS A COLD FRONT WILL BE SITUATED TO OUR WEST...HELPING TO KICK THE WINDS UP A NOTCH OR TWO IN THIS AREA. WINDS WILL BE STILL BE FROM THE SOUTH ON TUESDAY...BUT WILL BE WINDY BY MIDDAY WITH FREQUENT GUSTS TO 30 TO 35 MPH IN THE AFTERNOON. .TODAY... MAX TEMPERATURE.....70-75. MIN HUMIDITY........33 PERCENT. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY.............CLR CLR CLR MCR MCR PC PC PC PC PC WEATHER TYPE.... TEMP (F)........45 50 56 60 64 68 69 70 72 72 RH (%)..........70 63 55 49 41 36 35 35 33 33 DEWPOINT (F)....36 38 40 41 40 40 40 41 41 41 20 FT WIND DIR..SE SSE S S S S S S S S 20 FT WIND SPD..5 7 8 9 10 12 14 15 16 16 20 FT WIND GUST. 10 10 15 15 20 20 22 22 DISPERSAL INDEX.PR PR FR FR GD GD GD EX EX GD CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 MIX HGT (KFT)...0.7 1.2 1.6 2.7 3.7 4.7 4.9 5.1 5.3 3.6 TRANSP WIND DIR.S S S S S S S S S S TRANSP WIND SPD.3 7 10 13 14 15 16 17 18 21 HAINES INDEX....4 4 4 4 4 4 4 4 4 4 .TONIGHT... MIN TEMPERATURE.....50-55. MAX HUMIDITY........74 PERCENT. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY.............PCLDY PCLDY PCLDY PCLDY PCLDY MCLDY WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP (F)........71 68 62 60 57 55 RH (%)..........34 37 46 51 57 66 DEWPOINT (F)....41 41 41 42 42 44 20 FT WIND......S 16 S 16 S 14 S 13 S 12 SSE 12 20 FT WIND GUST.25 25 20 15 15 15 DISPERSAL INDEX.GOOD POOR POOR POOR POOR POOR CHC OF PCPN (%).10 10 10 10 10 10 .TUESDAY... MAX TEMPERATURE.....67-72. MIN HUMIDITY........47 PERCENT. TIME (CDT) 6 AM 9 AM NOON 3 PM SKY.............MCLDY MCLDY PCLDY PCLDY WEATHER COV..... S CHC WEATHER TYPE....NONE TSTORM NONE NONE TEMP (F)........54 59 65 68 RH (%)..........71 64 54 49 DEWPOINT (F)....45 47 48 48 20 FT WIND......SSE 13G15 S 18G25 S 24G30 S 25G35 DISPERSAL INDEX.POOR FAIR EXCEL EXCEL CHC OF PCPN (%).10 20 10 10 MIX HGT (FT)....300 1100 2800 3800 TRANSPORT WIND..S 25 S 29 S 35 S 35 HAINES INDEX....2 2 2 2 $$ FORECASTER...MJF REQUESTED BY...SCOTT MOATS TYPE OF REQUEST...PRESCRIBED .TAG 20090511.BROKE.01/FSD