FNUS73 KFSD 261323 FWSFSD SPOT FORECAST FOR LAKE ANDES...YANKTON AGENCY NATIONAL WEATHER SERVICE SIOUX FALLS SD 823 AM CDT TUE JUL 26 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WARM AND HUMID WEATHER IS EXPECTED ACROSS THE AREA THROUGH WEDNESDAY. TEMPERATURES WILL RISE INTO THE 80S AND 90S. WITH DEW POINTS IN THE UPPER 60S TO MID 70S...THE MINIMUM RELATIVE HUMIDITY WILL BE AT OR ABOVE 50 PERCENT OVER MOST OF THE AREA. AS FOR PRECIPITATION...THUNDERSTORMS OVER PORTIONS OF EASTERN SOUTH DAKOTA AND SOUTHWEST MINNESOTA ARE EXPECTED TO WEAKEN BY LATE MORNING LEAVING PARTLY TO MOSTLY SUNNY SKIES. THUNDERSTORMS ARE EXPECTED MOVE ACROSS THE AREA OVERNIGHT...WITH THE BEST CHANCE NORTH OF INTERSTATE 90. A WEAK FRONT WILL SHIFT WINDS TO NORTHWEST LATE TONIGHT AND WEDNESDAY AS IT MOVES FROM WESTERN SOUTH DAKOTA INTO NORTHWESTERN IOWA. MORE STORMS ARE EXPECTED TO FORM NEAR THE FRONT IN NORTHWEST IOWA AND NORTHEAST NEBRASKA WEDNESDAY NIGHT. THERE WILL ALSO BE A CHANCE OF THUNDERSTORMS ON THURSDAY...MAINLY SOUTH OF INTERSTATE 90. .TODAY... MAX TEMPERATURE.....92-97. MIN HUMIDITY........51 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......PC PC PC PC PC PC PC MCR MCR MCR PC PC % SKY COVER.....46 40 35 30 28 27 26 25 24 25 26 29 WEATHER COV.....ISO ISO SCT SCT WEATHER TYPE....RW RW RW RW TEMP............69 71 73 77 80 84 88 91 93 95 94 93 RH..............87 81 79 76 72 63 55 50 47 45 46 49 DEWPOINT........65 65 66 69 70 70 70 70 70 70 70 71 20 FT WIND DIR..S S SSE SSE SSE SSE S S S S S SSE 20 FT WIND SPD..8 9 9 12 14 17 20 22 23 24 23 22 20 FT WIND GUST. 10 15 20 25 30 30 30 30 30 30 SMOKE DISPERSAL.PR PR FR FR GD EX EX EX EX EX EX EX CHC OF PCPN (%).20 20 30 30 10 10 10 10 10 10 10 10 MIX HGT (KFT)...0.3 0.7 1.1 1.5 2.2 3.0 3.7 4.5 5.3 6.1 6.0 5.8 TRANSP WIND DIR.SSE SSE SSE SSE SSE SSE S S S S S S TRANSP WIND SPD.13 16 21 24 28 29 30 32 35 35 32 29 HAINES INDEX....4 4 4 4 4 4 4 4 5 5 5 5 .TONIGHT... MIN TEMPERATURE.....70-75. MAX HUMIDITY........87 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......PCLDY PCLDY MCLDY MCLDY MCLDY MCLDY % SKY COVER.....32 49 64 72 72 66 WEATHER COV.....S CHC S CHC SCTTRD SCTTRD SCTTRD SCTTRD WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............91 87 82 79 76 74 RH..............52 57 67 77 82 84 DEWPOINT........71 70 70 71 70 69 20 FT WIND......SSE 20 SSE 16 SSE 14 SSE 10 S 10 SSW 9 20 FT WIND GUST.30 25 15 15 15 10 SMOKE DISPERSAL.EXCEL GOOD POOR POOR POOR POOR .WEDNESDAY... MAX TEMPERATURE.....89-94. MIN HUMIDITY........52 PERCENT. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY COVER.......MCLDY MCLDY PCLDY PCLDY % SKY COVER.....58 51 47 46 WEATHER COV.....ISOLTD ISOLTD WEATHER TYPE....RNSHWR RNSHWR NONE NONE TEMP............73 81 88 92 RH..............84 69 55 47 DEWPOINT........68 70 70 69 20 FT WIND......SSW 7 NNW 8G10 N 7 NNE 6 SMOKE DISPERSAL.M M M M CHC OF PCPN (%).20 20 10 10 MIX HGT (FT)....M M M M TRANSPORT WIND..M M M M HAINES INDEX....M M M M $$ FORECASTER...JH REQUESTED BY...JULIAN RED BUFFALO TYPE OF REQUEST...PRESCRIBED .TAG 20110726.LAKEA.01/FSD