FNUS73 KFSD 031225 FWSFSD SPOT FORECAST FOR SCHAEFER...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 725 AM CDT THU JUN 3 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A SOUTH TO SOUTHEAST WIND WILL BE THE PREDOMINANT FLOW TODAY WITH AFTERNOON TEMPERATURES NEAR SEASONAL NORMALS. THE DAY SHOULD REMAIN DRY BEFORE AN UPPER LEVEL WAVE DISTURBS THE WEATHER TONIGHT BRINGING THUNDERSTORMS AND RAINFALL. ONE THING TO WATCH FOR THIS AFTERNOON IS WIND SPEEDS. THE TOP OF THE MIX LAYER IS RUNNING ABOUT 25 KNOTS WHICH IS 28 MPH...AND SOME OF THOSE SPEEDS MAY MIX DOWN TO THE SURFACE TODAY IN THE FORM OF GUSTS. PREVAILING SPEEDS WILL BE LIGHTER. HOWEVER THE WILDCARD IS THERE LIKELY WILL BE A FAIR AMOUNT OF MID TO HIGH LEVEL CLOUDS. SO THERE IS A POTENTIAL THAT FULL MIXING WILL NOT BE REALIZED...AND THUS WIND GUSTS WILL BE A BIT LIGHTER. AT ANY RATE...WE ARE NOT EXPECTING THE BOTTOM TO DROP OUT OF THE MINIMUM HUMIDITY VALUES...WHICH SHOULD STAY NEAR 45 TO 50 PERCENT THIS AFTERNOON. .TODAY... MAX TEMPERATURE.....77-82. MIN HUMIDITY........49 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......PC PC PC PC PC MC MC PC PC PC MC MC % SKY COVER.....41 43 46 48 49 51 53 50 48 46 55 64 WEATHER COV..... SCH SCH SCH WEATHER TYPE.... RW RW RW TEMP............55 59 62 65 69 72 75 77 79 79 79 79 RH..............93 83 78 70 63 57 52 50 49 49 50 52 20 FT WIND DIR..SE SE SSE SSE SSE SSE SSE SSE SSE S S S 20 FT WIND SPD..5 6 8 9 12 15 16 18 20 21 20 18 20 FT WIND GUST. 10 10 15 20 25 27 28 28 27 25 SMOKE DISPERSAL.PR PR PR PR FR GD GD GD EX EX EX EX CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 20 20 20 MIX HGT (KFT)...0.3 0.4 0.6 0.7 1.2 1.7 2.2 2.4 2.6 2.9 2.9 2.9 TRANSP WIND DIR.S SSE SSE SSE SSE SSE S S S S S S TRANSP WIND SPD.5 12 17 22 25 26 29 30 31 31 30 28 HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 3 .TONIGHT... MIN TEMPERATURE.....57-62. MAX HUMIDITY........93 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......MCLDY MCLDY MCLDY MCLDY MCLDY MCLDY % SKY COVER.....73 81 86 87 83 73 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR NONE TEMP............78 73 70 67 64 61 RH..............54 66 71 78 84 90 20 FT WIND......S 16 SSE 14 S 13 S 13 WSW 12 W 12 20 FT WIND GUST.25 20 15 15 15 15 SMOKE DISPERSAL.GOOD POOR POOR POOR POOR POOR CHC OF PCPN (%).30 30 40 40 40 20 .FRIDAY... MAX TEMPERATURE.....78-83. MIN HUMIDITY........42 PERCENT. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY COVER.......MCLDY MCLDY MCLDY MCLDY % SKY COVER.....57 54 51 54 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............60 70 77 80 RH..............93 66 47 42 20 FT WIND......WNW 10 NW 14G20 NW 14G20 NW 12G15 SMOKE DISPERSAL.POOR FAIR EXCEL EXCEL CHC OF PCPN (%).10 10 10 10 MIX HGT (FT)....300 1300 4400 5600 TRANSPORT WIND..WNW 12 NW 22 NNW 20 NW 15 HAINES INDEX....4 4 3 5 $$ FORECASTER...MJF REQUESTED BY...CHARLES FROHME TYPE OF REQUEST...PRESCRIBED .TAG 20100603.SCHAE.01/FSD