FNUS73 KFGF 191300 FWSFGF SPOT FORECAST FOR LETHENSTROM...USFWS NATIONAL WEATHER SERVICE GRAND FORKS ND 800 AM CDT WED OCT 19 2011 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON OCTOBER 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... EXPECT A COOL AND CLOUDY DAY WITH LIGHT NORTHERLY WINDS. THE WIND DIRECTION SHOULD BE FAIRLY RELIABLE FOR THE EARLY TO MID AFTERNOON...BUT THE WEAKENING WINDS IN THE LATE AFTERNOON COULD RESULT IN SOME VARIABLE DIRECTION. THE MINIMUM RH SHOULD ONLY GET DOWN TO ABOUT 50 PERCENT DUE TO THE CLOUD COVER. SMOKE DISPERSION SHOULD BECOME MARGINALLY GOOD BY THE PROPOSED BURN TIME...BUT BECOME POOR AGAIN BY 5 PM. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. MAX TEMPERATURE.....40-45. MIN HUMIDITY........50-55 PERCENT. WIND (20 FT)........NORTH WINDS 5 TO 8 MPH. MIXING HEIGHT.......1500-3400 FT AGL INCREASING TO 2700-3900 FT AGL LATE IN THE MORNING...THEN DECREASING TO 1500 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTH 9 TO 15 MPH. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........87 85 83 80 77 73 69 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............37 38 40 42 42 41 39 RH..............65 63 61 57 55 59 66 20 FT WIND DIR..N N N N N N N 20 FT WIND SPD..7 7 7 7 6 6 5 20 FT WIND GUST.10 10 10 10 10 10 10 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY BECOMING PARTLY CLOUDY. MIN TEMPERATURE.....23-28. MAX HUMIDITY........94-99 PERCENT. WIND (20 FT)........NORTH WINDS 5 TO 6 MPH EARLY IN THE EVENING BECOMING LIGHT. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........NORTHEAST 3 TO 7 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........64 50 34 22 18 18 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............37 34 31 29 27 25 RH..............70 82 88 92 98 99 20 FT WIND......N 5 N 4 N 3 N 3 NE 3 NE 2 20 FT WIND GUST.10 5 5 5 5 5 .THURSDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....45-50. MIN HUMIDITY........38-43 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST UP TO 5 MPH EARLY IN THE AFTERNOON...THEN BECOMING LIGHT LATE IN THE AFTERNOON. MIXING HEIGHT.......300 FT AGL INCREASING TO 2600-3800 FT AGL IN THE AFTERNOON...THEN DECREASING TO 1400 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTHWEST 2 TO 8 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........19 16 13 12 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............25 34 43 47 RH..............99 75 51 43 20 FT WIND......NE 2G5 N 2G5 NW 5G10 NW 5G10 $$ FORECASTER...GROCHOCINSKI REQUESTED BY...LINDY MCNEILUS TYPE OF REQUEST...PRESCRIBED .TAG 20111019.LETHE.01/FGF