FNUS73 KFSD 041235 FWSFSD SPOT FORECAST FOR LAKE HENRY...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 735 AM CDT FRI JUN 4 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SURFACE HIGH PRESSURE SITUATED TO THE NORTHWEST OF THIS AREA TODAY WILL GIVE A NORTHWEST FLOW OF SURFACE AIR TO EAST CENTRAL SOUTH DAKOTA. SMOKE DISPERSION SHOULD BE FAIR BY LATE MORNING...MAINLY DUE TO LIGHTER WIND SPEEDS TODAY KEEPING THE DISPERSION LOWER THAN YESTERDAY. SKY COVER MAY FAVOR MOSTLY CLOUDY THROUGH A GOOD PORTION OF THE DAY... AS AMPLE MID AND UPPER LEVEL MOISTURE CONTINUES TO STREAM IN FROM THE ROCKIES. IN FACT...THE VERY LATEST INDICATIONS ARE THAT EAST CENTRAL SOUTH DAKOTA MAY RUN THE RISK OF AN ISOLATED SHOWER OR SPRINKLE THIS AFTERNOON...SOMETHING TO KEEP AN EYE ON. THIS WOULD BE A DEVELOPMENTAL RAIN IF IT OCCURS...AS SO FAR THE RADAR IS CLEAN THROUGHOUT SOUTH DAKOTA. IF CLOUDS HANG TOUGH...I AM A BIT WORRIED ABOUT NOT REALIZING OUR MAX TEMPERATURES TODAY OF THE UPPER 70S... WHICH WOULD THUS GIVE HIGHER MINIMUM HUMIDITY VALUES. HOWEVER THE DAYS OUR LONG...AND THE TEMPERATURE IS ALREADY IN THE LOWER 60S. SO ANY PARTIAL SUNSHINE AT ALL SHOULD AT LEAST GIVE AFTEROON READINGS IN THE LOWER TO MID 70S...WHICH WOULD GIVE MIN RH VALUES OF 45 TO 50 PERCENT. /MJF .TODAY... MAX TEMPERATURE.....76-81. MIN HUMIDITY........40 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......MC MC MC MC MC MC MC MC MC MC MC PC % SKY COVER.....83 80 76 73 71 69 66 63 60 57 53 49 WEATHER COV..... WEATHER TYPE.... TEMP............62 64 67 69 71 74 75 76 77 78 78 78 RH..............84 78 70 66 61 51 48 45 42 40 40 40 DEWPOINT........57 57 57 57 57 55 54 53 52 52 52 52 20 FT WIND DIR..WNW WNW NW NW NW NW NW NW NW NW NW NW 20 FT WIND SPD..7 7 8 8 9 9 9 8 8 7 6 5 20 FT WIND GUST. 10 10 10 10 10 10 10 SMOKE DISPERSAL.PR PR PR PR FR FR FR FR FR FR FR PR CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0 MIX HGT (KFT)...0.3 0.4 0.6 0.7 1.5 2.2 3.0 3.4 3.8 4.1 4.1 4.1 TRANSP WIND DIR.WNW NW NW NW NW NW WNW WNW WNW W W WSW TRANSP WIND SPD.7 10 13 14 13 10 8 8 7 7 5 3 HAINES INDEX....4 4 5 5 5 5 5 5 5 5 5 4 .TONIGHT... MIN TEMPERATURE.....54-59. MAX HUMIDITY........93 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......PCLDY MCLDY MCLDY CLOUDY CLOUDY CLOUDY % SKY COVER.....46 60 75 90 89 88 WEATHER COV.....CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............77 71 66 62 61 58 RH..............43 53 65 78 81 90 DEWPOINT........53 53 54 55 55 55 20 FT WIND......NW 5 ENE 2 E 2 ESE 3 ESE 5 E 5 20 FT WIND GUST. 5 SMOKE DISPERSAL.POOR POOR POOR POOR POOR POOR CHC OF PCPN (%).30 30 30 70 70 70 .SATURDAY... TIME (CDT) 7 AM 10 AM 1 PM 4 PM 20 FT WIND......E 6 E 6 N 7 NNW 12G15 $$ FORECASTER...MJF REQUESTED BY...MADISON TYPE OF REQUEST...PRESCRIBED .TAG 20100604.LAKEH.01/FSD