FNUS73 KFSD 021007 FWSFSD SPOT FORECAST FOR SOUTH LAIR WPA...USFWS NATIONAL WEATHER SERVICE SIOUX FALLS SD 507 AM CDT MON MAY 2 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... COOL DRY CANADIAN HIGH PRESSURE WILL BUILD INTO THE REGION TODAY. BRISK NORTHWEST WINDS EAST OF INTERSTATE 29 WILL MIX TO THE SURFACE RESULTING IN BREEZY CONDITIONS. THIS COMBINED WITH THE RELATIVE DRY ATMOSPHERE WILL PRODUCE AN ELEVATED FIRE DANGER. THE LOW RELATIVE HUMIDITIES ARE EXPECTED TO RETURN TUESDAY AFTERNOON AS HIGH PRESSURE BEGINS TO SHIFT EAST INTO THE CENTRAL PLAINS. THE NEXT WEATHER DISTURBANCE IS EXPECTED TO IMPACT THE DISTRICTS ON WEDNESDAY...CREATING A CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS. TEMPERATURES THROUGH THE PERIOD WILL REMAIN AT OR BELOW SEASONAL NORMS. .TODAY... MAX TEMPERATURE.....51-56. MIN HUMIDITY........27 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.....32 36 40 44 49 53 58 61 65 68 69 70 WEATHER COV..... WEATHER TYPE.... TEMP............32 36 39 43 46 48 49 51 53 54 54 53 RH..............66 61 54 43 38 34 33 30 28 27 27 28 DEWPOINT........22 22 23 22 22 21 21 21 21 21 21 21 20 FT WIND DIR..WNW NW NW NW NW NW NW NW NNW NNW NNW NNW 20 FT WIND SPD..12 15 17 20 20 18 18 18 20 18 17 16 20 FT WIND GUST.15 20 25 30 30 30 28 30 30 30 25 25 SMOKE DISPERSAL.PR FR GD EX EX EX EX EX EX EX EX EX CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10 10 MIX HGT (KFT)...0.3 1.4 2.5 3.7 3.8 3.9 4.0 4.3 4.5 4.8 4.7 4.5 TRANSP WIND DIR.WNW NW NW NW NW NW NW NW NW NW NW NNW TRANSP WIND SPD.13 17 22 24 25 25 24 24 24 24 24 24 HAINES INDEX....4 4 4 4 3 3 2 2 3 3 3 3 .TONIGHT... MIN TEMPERATURE.....26-31. MAX HUMIDITY........78 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......MCLDY MCLDY MCLDY MCLDY MCLDY PCLDY % SKY COVER.....71 63 62 68 63 50 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............51 42 36 33 30 29 RH..............30 46 61 66 72 75 DEWPOINT........21 23 24 23 22 22 20 FT WIND......NNW 13 NNW 8 N 5 NNW 5 NW 3 NW 3 20 FT WIND GUST.15 10 5 5 SMOKE DISPERSAL.EXCEL POOR POOR POOR POOR POOR CHC OF PCPN (%).0 0 0 0 0 0 MIX HGT (FT)....4300 300 300 300 300 300 TRANSPORT WIND..NNW 22 NNW 12 N 5 NNW 5 NW 5 NW 3 HAINES INDEX....3 4 4 3 3 3 .TUESDAY... MAX TEMPERATURE.....58-63. MIN HUMIDITY........20 PERCENT. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY COVER.......PCLDY MCLEAR PCLDY MCLEAR % SKY COVER.....31 21 29 20 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............31 49 57 60 RH..............72 36 24 22 DEWPOINT........23 23 21 21 20 FT WIND......NW 3G5 NW 6 NNW 6 WNW 6 SMOKE DISPERSAL.POOR GOOD GOOD GOOD $$ FORECASTER...BT REQUESTED BY...CHAD LORETH TYPE OF REQUEST...PRESCRIBED .TAG 20110502.SOUTH.01/FSD