FNUS73 KFSD 281423 FWSFSD SPOT FORECAST FOR ZAHNER...IDNR NATIONAL WEATHER SERVICE SIOUX FALLS SD 923 AM CDT THU APR 28 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...ANOTHER WELL MIXED DAY TODAY MAKING FOR GUSTY CONDITIONS THROUGH MUCH OF THE DAY...ALTHOUGH WINDS WILL NOT BE AS STRONG AS YESTERDAY. WINDS WILL DIE OFF RAPIDLY THIS EVENING WITH HIGH PRESSURE IN PLACE...THEN SWITHING TO THE SOUTH TONIGHT. MAIN FORECAST CONCERN IS DEW POINTS AND RELATIVE HUMIDITY. DRY WEDGE OF AIR OVER NORTHWEST IOWA...SUCH THAT DEW POINTS COULD DROP INTO THE MID 20S THIS AFTERNOON IF THE ATMOSPHERE CAN MIX DEEP ENOUGH. THIS WOULD PRODUCE RELATIVE HUMIDITY 5 TO 10 PERCENT LOWER THAN CURRENTLY FORECAST. .TODAY... MAX TEMPERATURE.....59-64. MIN HUMIDITY........28 PERCENT. TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......MC MC MC PC PC PC MCR MCR MCR MCR % SKY COVER.....66 61 53 46 38 31 25 18 15 11 WEATHER COV.....SCT WEATHER TYPE....RW TEMP............45 49 52 55 57 60 62 62 62 60 RH..............62 54 46 40 34 31 28 28 28 31 DEWPOINT........33 33 32 31 29 29 29 29 29 29 20 FT WIND DIR..NNW NNW NNW NW NW NW NW NW NW NW 20 FT WIND SPD..16 21 22 24 25 24 24 22 20 15 20 FT WIND GUST. 27 28 30 32 35 33 30 27 22 SMOKE DISPERSAL.FR GD EX EX EX EX EX EX EX GD .TONIGHT... MIN TEMPERATURE.....36-41. MAX HUMIDITY........76 PERCENT. TIME (CDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM SKY COVER.......MCR MCR CLR CLR MCR MCR MCR MCR MCR MCR MCR MCR % SKY COVER.....8 6 5 3 6 8 10 10 11 11 16 21 WEATHER COV..... WEATHER TYPE.... TEMP............57 52 48 44 42 41 41 41 40 41 41 42 RH..............34 43 54 68 73 76 76 73 76 73 76 73 DEWPOINT........29 30 32 34 34 34 34 33 33 33 34 34 20 FT WIND DIR..NNW NW NW WNW W SSW S SSE SSE SSE SSE SSE 20 FT WIND SPD..14 11 8 6 5 5 5 7 8 9 9 10 20 FT WIND GUST.18 10 10 10 SMOKE DISPERSAL.GD PR PR PR PR PR PR PR PR PR PR PR .FRIDAY... MAX TEMPERATURE.....67-72. MIN HUMIDITY........39 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......PC PC PC PC PC MC MC MC MC MC MC MC % SKY COVER.....26 32 39 45 50 55 60 66 71 77 77 77 WEATHER COV..... WEATHER TYPE.... TEMP............44 47 51 55 59 63 67 68 69 68 68 67 RH..............70 68 61 57 51 46 40 40 39 42 43 45 DEWPOINT........35 37 38 40 41 42 42 43 43 44 45 45 20 FT WIND DIR..SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE 20 FT WIND SPD..10 15 18 22 23 24 24 26 29 29 29 26 20 FT WIND GUST.15 20 30 30 35 35 35 35 40 40 40 40 SMOKE DISPERSAL.PR PR PR PR FR GD EX EX EX EX EX EX $$ FORECASTER...LIEBL REQUESTED BY...LUCAS STRAW TYPE OF REQUEST...PRESCRIBED .TAG 20110428.ZAHNE.01/FSD