FNUS73 KFGF 211231 FWSFGF SPOT FORECAST FOR DAHLER SLOUGH...USFWS NATIONAL WEATHER SERVICE GRAND FORKS ND 731 AM CDT MON MAY 21 2012 FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MAY 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... MOSTLY SUNNY SKIES WILL HELP MIXING BECOME EFFICIENT BURNING OFF THE MORNINGS INVERSION. 10 TO 15 MPH SOUTH WINDS TO DEVELOP WITH GUSTS TO 20 TO 25 MPH BY EARLY AFTERNOON. WITH THIS MIXING AND SUN MIN RHS ARE EXPECTED TO MIX DOWN TO INTO THE 25 TO 30 PERCENT RANGE. SOME UNCERTAINTY EXISTS WITH CLOUD COVER AS CLOUDS AND A FEW WEAK SHOWERS CONTINUE TO EAST ACROSS THE CENTRAL DAKOTAS. IF THIS HOLDS TOGETHER THEN TEMPS MAYBE LOWER AND MIN RHS HIGHER...WITH A POSSIBLE SPRINKLE AT YOUR BURN SITE...CURRENTLY THINKING SHOWER ACTIVITY WILL NOT IMPACT YOU. SMOKE DISPERSION WILL BE EXCELLENT. .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....73-78. MIN HUMIDITY........25-30 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 11 TO 16 MPH WITH GUSTS TO AROUND 25 MPH. MIXING HEIGHT.......300 FT AGL INCREASING TO 2800-4700 FT AGL LATE IN THE MORNING...THEN INCREASING TO 6500-8300 FT AGL LATE IN THE MORNING DECREASING TO 6100 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 6 TO 15 MPH INCREASING TO 16 TO 23 MPH IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........16 21 28 35 41 45 49 52 55 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............68 72 74 75 76 76 76 76 75 RH..............41 35 33 33 31 30 30 30 32 20 FT WIND DIR..S S S S S S S S S 20 FT WIND SPD..12 13 15 15 16 16 16 16 15 20 FT WIND GUST.15 20 20 20 25 25 25 25 25 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. MIN TEMPERATURE.....56-61. MAX HUMIDITY........63-68 PERCENT. WIND (20 FT)........SOUTH WINDS 12 TO 17 MPH WITH GUSTS TO AROUND 25 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS AFTER MIDNIGHT. MIXING HEIGHT.......3700-5400 FT AGL DECREASING TO 300 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 17 TO 26 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........58 59 63 68 60 53 WEATHER COV..... ISOLTD ISOLTD ISOLTD WEATHER TYPE....NONE NONE NONE RNSHWR RNSHWR RNSHWR TSTM COV........ ISOLTD ISOLTD ISOLTD TEMP............74 69 65 63 61 58 RH..............33 40 47 52 57 63 20 FT WIND......S 15 S 15 S 15 S 16 S 17 S 17 20 FT WIND GUST.25 25 25 25 25 25 .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....82-87. MIN HUMIDITY........38-43 PERCENT. WIND (20 FT)........SOUTH WINDS 17 TO 22 MPH. GUSTS UP TO 30 MPH INCREASING TO 35 MPH IN THE AFTERNOON. MIXING HEIGHT.......600-2500 FT AGL INCREASING TO 2800-3800 FT AGL IN THE AFTERNOON. MIXING WINDS........SOUTH 25 TO 32 MPH INCREASING TO 36 TO 40 MPH LATE IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........51 46 35 38 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............59 70 80 84 RH..............66 53 45 43 20 FT WIND......S 16G25 S 19G30 S 21G30 S 22G35 $$ FORECASTER...KAISER REQUESTED BY...TROY BOSCHEE TYPE OF REQUEST...PRESCRIBED .TAG 20120521.DAHLE.01/FGF