FNUS73 KFGF 031307 FWSFGF SPOT FORECAST FOR PLUM GROVE PILE...USFWS DL NATIONAL WEATHER SERVICE GRAND FORKS ND 807 AM CDT THU JUN 3 2010 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON JUNE 03. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... EXPECT PARTLY SUNNY SKIES AND RELIABLE SOUTHERLY WINDS BY THE PROPOSED BURN TIME. CLOUD COVER WILL INCREASE FROM THE WEST THROUGH THE AFTERNOON DUE TO THE APPROACHING TROUGH OF LOW PRESSURE. WIND GUSTS SHOULD BE 10-15 MPH BY LATE AFTERNOON. MIXING HEIGHTS LOOK GOOD...AND THE MIXING IN THE LOWER LEVELS SHOULD HELP DRAW DOWN DRY AIR TO THE SURFACE. THE FORECASTED RH IS NEAR 35 PERCENT. THE RH COULD BE A LITTLE HIGHER IF THE CLOUDS INCREASE FASTER THAN THE FORECAST. SMOKE DISPERSION WILL BE GOOD. SHOWERS AND STORMS ARE LIKELY THIS EVENING AND OVERNIGHT...WHICH COULD BRING AROUND A TENTH OF AN INCH OF RAIN TO THE BURN SITE. TOMORROW LOOKS WINDY WITH ELEVATED RH IN THE MORNING...BUT DECENT DRYING IN THE AFTERNOON. .TODAY... SKY/WEATHER.........PARTLY SUNNY. MAX TEMPERATURE.....71-76. MIN HUMIDITY........34-39 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 7 MPH LATE IN THE MORNING. MIXING HEIGHT.......300 FT AGL INCREASING TO 4100-6000 FT AGL EARLY IN THE MORNING...THEN INCREASING TO 6300-6900 FT AGL IN THE LATE MORNING AND EARLY AFTERNOON DECREASING TO 4800 FT AGL LATE IN THE AFTERNOON DECREASING TO 2700 FT AGL. MIXING WINDS........SOUTH 3 TO 12 MPH. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........49 53 56 60 63 67 71 74 WEATHER COV..... WEATHER TYPE.... TEMP............69 70 71 72 72 72 72 70 RH..............52 46 43 43 41 40 39 43 20 FT WIND DIR..S S S S S S S S 20 FT WIND SPD..4 5 5 5 5 5 6 6 20 FT WIND GUST.5 10 10 10 10 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY IN THE EVENING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. MIN TEMPERATURE.....53-58. MAX HUMIDITY........85-90 PERCENT. WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH UNTIL EARLY MORNING BECOMING LIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. MIXING HEIGHT.......300 FT AGL. MIXING WINDS........EAST 10 TO 18 MPH DECREASING TO AROUND 12 MPH EARLY IN THE MORNING. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........77 83 87 88 87 82 WEATHER COV.....LIKELY LIKELY LIKELY CHANCE CHANCE CHANCE WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............67 64 61 59 56 55 RH..............51 62 70 78 83 89 20 FT WIND......S 6 S 6 S 6 S 5 S 5 SW 4 20 FT WIND GUST.10 10 10 10 5 .FRIDAY... SKY/WEATHER.........PARTLY SUNNY. MAX TEMPERATURE.....71-76. MIN HUMIDITY........36-41 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING WEST 11 TO 16 MPH WITH GUSTS TO AROUND 25 MPH. MIXING HEIGHT.......1700-3300 FT AGL INCREASING TO 4200-5800 FT AGL LATE IN THE MORNING...THEN INCREASING TO 6200-6900 FT AGL EARLY IN THE AFTERNOON DECREASING TO 4700 FT AGL LATE IN THE AFTERNOON DECREASING TO 2500 FT AGL. MIXING WINDS........WEST 10 TO 16 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........76 62 49 46 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............57 66 72 73 RH..............87 70 52 43 20 FT WIND......SW 4G5 W 8G15 W 14G25 W 14G25 $$ FORECASTER...GROCHOCINSKI REQUESTED BY...LINDY TYPE OF REQUEST...PRESCRIBED .TAG 20100603.PLUMG.01/FGF