FNUS73 KFSD 121143 FWSFSD SPOT FORECAST FOR BLIXSETH...U.S. FISH & WILDLIFE SERVICE NATIONAL WEATHER SERVICE SIOUX FALLS SD 643 AM CDT SUN MAY 12 2013 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... NORTH TO SOUTH EXTENDING HIGH PRESSURE WILL REMAIN STATIONARY TODAY RIGHT ALONG INTERSTATE 29. THE SURFACE WINDS WILL BEGIN THE DAY LIGHT AND FROM THE WEST. HOWEVER AS THE MORNING PROGRESSES... THEY WILL COUPLE UP WITH THE TRANSPORT WINDS AND SHOULD THEREFORE BECOME MORE NORTH TO NORTHWEST. THE AIR MASS IS ONCE AGAIN VERY DRY...THEREFORE WE WILL SEE A WELL MIXED DAY WITH GOOD TO EXCELLENT SMOKE DISPERSION. SUSTAINED SURFACE WINDS WILL SETTLE INTO THE 10 TO 12 MPH RANGE...BUT WITH THE MIXING...DO NOT SUPRISED TO SEE SOME GUSTS OF AROUND 15 OR 17 MPH...ESPECIALLY MIDDAY AND EARLY AFTERNOON. MINIMUM HUMIDITIES SHOULD FALL TO CLOSE TO 20 PERCENT. MONDAY AND TUESDAY WILL DISPLAY VERY ELEVATED FIRE DANGER WITH BREEZY TO WINDY WIND SPEEDS AND DRY HUMIDITY VALUES. A COLD FRONT WILL MOVE THROUGH ON TUESDAY WHICH WILL THROW A WIND SHIFT IN THE WINDOM AREA IN THE MID TO LATE AFTERNOON. .TODAY... MAX TEMPERATURE.....56-61. MIN HUMIDITY........19 PERCENT. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY COVER.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR MCR % SKY COVER.....0 1 1 2 3 4 5 4 3 2 5 8 WEATHER COV.....ARS ARS WEATHER TYPE....FR FR TEMP............30 37 43 47 49 51 53 55 57 58 59 59 RH..............69 52 41 35 31 28 26 23 21 19 19 20 DEWPOINT........21 21 21 21 20 19 19 18 18 17 17 18 20 FT WIND DIR..W WNW NW NNW NNW NNW NNW NW NW NW NW NW 20 FT WIND SPD..7 9 10 12 12 12 12 12 10 10 10 9 20 FT WIND GUST. 10 15 15 15 15 15 10 SMOKE DISPERSAL.PR PR GD GD EX EX GD EX EX EX EX GD CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0 MIX HGT (KFT)...0.3 1.6 2.9 4.2 4.6 4.9 5.3 5.5 5.8 6.0 6.0 5.8 TRANSP WIND DIR.NW NW NNW NNW NNW NNW NW NW NW NW NW WNW TRANSP WIND SPD.3 10 15 18 18 17 15 15 14 14 14 14 HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 4 .TONIGHT... MIN TEMPERATURE.....38-43. MAX HUMIDITY........68 PERCENT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY COVER.......MCLEAR MCLEAR MCLEAR MCLEAR PCLDY PCLDY % SKY COVER.....11 13 18 25 35 46 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............57 52 46 41 42 43 RH..............21 31 45 62 65 67 DEWPOINT........18 22 26 29 31 33 20 FT WIND......NW 9 S 3 SSE 2 S 6 S 7 S 7 20 FT WIND GUST.10 5 SMOKE DISPERSAL.GOOD POOR POOR POOR POOR POOR CHC OF PCPN (%).0 0 0 0 0 0 .MONDAY... MAX TEMPERATURE.....77-82. MIN HUMIDITY........29 PERCENT. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY COVER.......MCLDY MCLDY MCLDY MCLDY MCLDY PCLDY % SKY COVER.....60 64 65 64 57 44 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............44 55 64 72 77 80 RH..............68 51 40 33 30 29 DEWPOINT........34 37 39 41 43 45 20 FT WIND......S 8 S 12 S 17 S 21 SSW 23 SSW 18 20 FT WIND GUST.10 15 25 30 30 30 SMOKE DISPERSAL.POOR POOR FAIR GOOD EXCEL EXCEL CHC OF PCPN (%).0 0 10 10 10 0 MIX HGT (FT)....300 700 1600 2800 4000 4600 TRANSPORT WIND..S 9 S 17 S 24 SSW 26 SSW 32 SSW 32 HAINES INDEX....4 5 5 5 6 6 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...MJF REQUESTED BY...ERIC EARHART TYPE OF REQUEST...PRESCRIBED .TAG 20130512.BLIXS.01/FSD