FNUS73 KFSD 081142 FWSFSD SPOT FORECAST FOR IONA...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 642 AM CDT THU APR 8 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SURFACE RIDGE OF HIGH PRESSURE WILL MOVE SLOWLY EAST OVER AREA TODAY...PRECEDED BY A BRISK NORTHWEST FLOW OF DRY AIR EAST OF INTERSTATE 29. THE RIDGE WILL BE FOLLOWED BY A SOUTH TO SOUTHWEST FLOW OF WARMER AIR MOVING EAST OVER AREA LATER TONIGHT THROUGH FRIDAY MORNING AHEAD OF COLD FRONT MOVING SOUTHEAST OVER THE AREA FRIDAY AFTERNOON. THIS FRONT WILL BE FOLLOWED BY A BRISK NORTHWEST FLOW OF SOMEWHAT COOLER AIR. .TODAY... MAX TEMPERATURE.....52-57. MIN HUMIDITY........27 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......CLR CLR CLR CLR CLR MCR MCR MCR MCR MCR MCR MCR % SKY COVER.....0 0 0 0 4 8 12 14 13 12 10 8 WEATHER COV..... WEATHER TYPE.... TEMP............27 32 37 42 45 47 50 51 52 53 54 54 RH..............85 69 56 46 41 37 33 32 31 30 29 29 DEWPOINT........23 23 23 23 23 22 22 22 22 22 23 23 20 FT WIND DIR..NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW N 20 FT WIND SPD..12 13 14 15 16 17 17 17 16 15 12 9 20 FT WIND GUST.15 15 15 20 20 20 25 25 20 20 15 10 SMOKE DISPERSAL.PR PR FR FR GD EX EX EX EX EX EX EX CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0 MIX HGT (KFT)...0.3 0.9 1.5 2.1 3.2 4.3 5.5 6.0 6.4 6.9 6.2 5.4 TRANSP WIND DIR.NW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NW TRANSP WIND SPD.13 15 17 18 21 22 22 22 21 18 17 16 HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 4 .TONIGHT... MIN TEMPERATURE.....32-37. MAX HUMIDITY........71 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR % SKY COVER.....7 9 13 17 18 19 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............53 46 41 37 37 36 RH..............31 42 52 64 63 70 DEWPOINT........23 24 25 26 26 27 20 FT WIND......N 7 NE 3 E 3 S 6 S 7 S 9 20 FT WIND GUST.10 5 5 10 10 SMOKE DISPERSAL.GOOD POOR POOR POOR POOR POOR $$ FORECASTER...RYRHOLM REQUESTED BY...ERIC EARHART TYPE OF REQUEST...PRESCRIBED .TAG 20100408.IONA_.01/FSD