FNUS73 KFSD 231502 FWSFSD SPOT FORECAST FOR MARTY-WUI...YANKTON NATIONAL WEATHER SERVICE SIOUX FALLS SD 902 AM CST FRI DEC 23 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WIND SHIFT WILL MOVE ACROSS THE AREA DURING MIDDAY WITH A SUBTLE CHANGE FROM WEST SOUTHWEST WINDS TO WEST NORTHWEST WIND. MIXING WILL ALLOW FOR AN INCREASE IN WIND SPEEDS...BUT SMOKE DISPERSION WILL LIKELY LAG AS POOR UNTIL AFTERNOON. .TODAY... MAX TEMPERATURE.....41-46. MIN HUMIDITY........30 PERCENT. TIME (CST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY COVER.......MCR MC MC MC PC MCR MCR MCR MCR MCR % SKY COVER.....24 82 80 67 44 22 20 17 16 14 WEATHER COV..... WEATHER TYPE.... TEMP............20 24 28 35 40 42 43 44 41 37 RH..............77 68 59 43 35 31 30 30 33 40 DEWPOINT........14 15 15 15 14 14 14 15 15 15 20 FT WIND DIR..WSW WSW WSW W W W WNW WNW WNW W 20 FT WIND SPD..13 11 12 14 15 15 17 16 14 12 20 FT WIND GUST.15 12 14 20 20 25 26 24 20 17 SMOKE DISPERSAL.PR PR PR PR PR FR FR GD FR PR CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 MIX HGT (KFT)...0.3 0.3 0.4 0.5 0.7 1.0 1.3 1.6 1.2 0.7 TRANSP WIND DIR.WSW WSW WSW W W W WNW WNW WNW WNW TRANSP WIND SPD.14 15 16 20 22 24 26 26 22 17 HAINES INDEX....5 5 5 5 5 5 5 5 5 4 .TONIGHT... MIN TEMPERATURE.....17-22. MAX HUMIDITY........82 PERCENT. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY COVER.......MCLEAR MCLEAR MCLEAR CLEAR CLEAR MCLEAR % SKY COVER.....13 9 6 3 4 6 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............32 26 23 23 20 22 RH..............48 65 73 71 81 75 DEWPOINT........15 16 16 15 15 15 20 FT WIND......WNW 10 W 8 W 7 W 7 W 7 W 8 20 FT WIND GUST.15 10 10 SMOKE DISPERSAL.POOR POOR POOR POOR POOR POOR CHC OF PCPN (%).0 0 0 0 0 0 .SATURDAY... MAX TEMPERATURE.....45-50. MIN HUMIDITY........32 PERCENT. TIME (CST) 6 AM 9 AM NOON 3 PM SKY COVER.......MCLEAR CLEAR CLEAR MCLEAR % SKY COVER.....8 4 0 6 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............26 27 43 48 RH..............59 64 36 33 DEWPOINT........14 16 18 20 20 FT WIND......W 8G10 W 10G15 WNW 15G20 W 14G20 SMOKE DISPERSAL.POOR POOR POOR FAIR CHC OF PCPN (%).0 0 0 0 MIX HGT (FT)....300 300 600 1100 TRANSPORT WIND..W 10 W 12 WNW 26 W 22 HAINES INDEX....4 4 4 3 WEATHER TYPE ABBREVIATIONS 1) T = THUNDERSTORMS 2) R = RAIN 3) RW = RAIN SHOWERS 4) L = DRIZZLE 5) ZR = FREEZING RAIN 6) ZL = FREEZING DRIZZLE 7) S = SNOW 8) SW = SNOW SHOWERS 9) IP = ICE PELLETS 10) F = FOG 11) ZF = FREEZING FOG 12) IC = ICE CRYSTALS 13) H = HAZE 14) BS = BLOWING SNOW 15) K = SMOKE 16) BD = BLOWING DUST 17) FR = FROST $$ FORECASTER...CHAPMAN REQUESTED BY...KYLE GOLUS TYPE OF REQUEST...PRESCRIBED .TAG 20111223.MARTY.01/FSD