FNUS73 KFGF 061406 FWSFGF SPOT FORECAST FOR ZILMER PRAIRIE...USFWS NATIONAL WEATHER SERVICE GRAND FORKS ND 906 AM CDT FRI MAY 6 2011 FORECAST IS BASED ON IGNITION TIME OF 1230 CDT ON MAY 06. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... EXPECT MIDDLE AND HIGH LEVEL CLOUDS TO INCREASE THROUGH THE DAY AT THE PRESCRIBED BURN SITE AS A LOW PRESSURE SYSTEM MOVES ACROSS THE DAKOTAS. SOUTHERLY WIND WILL BE THE RULE...BUT SHOULD REMAIN BELOW 10 MPH...ALTHOUGH SOME AFTERNOON GUSTS TO 15 MPH ARE POSSIBLE. THE HIGH TEMPERATURE WILL TOP OUT NEAR 70 DEGREES WITH A MINIMUM AFTERNOON RH IN THE MID-20 PERCENT RANGE. SMOKE DISPERSION WILL BE GOOD TO EXCELLENT AT IGNITION TIME. THE CHANCE FOR RAIN SHOWERS AND AN ISOLATED THUNDERSTORM INCREASES THIS EVENING AND THROUGH THE DAY ON SATURDAY AS A SURFACE TROUGH MOVES INTO NORTHWEST MINNESOTA. RAINFALL AMOUNTS SHOULD BE AROUND A TENTH OF AN INCH OR LESS. SOUTH-SOUTHEAST WIND THIS EVENING WILL BECOME LIGHT AND VARIABLE TONIGHT AND SATURDAY AS THE TROUGH AXIS MOVES OVERHEAD. TEMPERATURES SATURDAY WILL BE A BIT COOLER WITH HIGHER MINIMUM RH VALUES. .TODAY... SKY/WEATHER.........PARTLY SUNNY. MAX TEMPERATURE.....68-73. MIN HUMIDITY........21-26 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH. MIXING HEIGHT.......300 FT AGL INCREASING TO 8000-9600 FT AGL. MIXING WINDS........SOUTH 7 TO 12 MPH. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........54 58 62 65 69 71 74 76 WEATHER COV..... WEATHER TYPE.... TEMP............58 61 65 67 69 69 70 70 RH..............45 40 34 29 26 26 26 29 20 FT WIND DIR..S S S S S S S S 20 FT WIND SPD..7 7 7 7 7 7 7 6 20 FT WIND GUST.10 10 10 10 10 10 10 10 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE EVENING...THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....43-48. MAX HUMIDITY........84-89 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH IN THE EVENING BECOMING LIGHT...THEN BECOMING SOUTHEAST 5 TO 8 MPH AFTER MIDNIGHT BECOMING LIGHT. MIXING HEIGHT.......8800 FT AGL DECREASING TO 300 FT AGL. MIXING WINDS........SOUTHEAST 3 TO 10 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........77 79 79 78 77 75 WEATHER COV.....CHANCE CHANCE CHANCE S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............69 63 57 52 49 46 RH..............34 44 56 69 77 86 20 FT WIND......SE 6 SE 6 SE 5 S 3 SE 6 SE 5 20 FT WIND GUST.10 10 5 10 .SATURDAY... SKY/WEATHER.........PARTLY SUNNY. CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....65-70. MIN HUMIDITY........42-47 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH UP TO 5 MPH LATE IN THE MORNING...THEN BECOMING LIGHT LATE IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. MIXING HEIGHT.......300 FT AGL INCREASING TO 8200-8900 FT AGL. MIXING WINDS........SOUTH 1 TO 10 MPH SHIFTING TO THE WEST 8 TO 10 MPH LATE IN THE MORNING. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........72 64 55 48 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR TEMP............45 54 63 67 RH..............89 71 56 49 20 FT WIND......SE 1 S 5 SE 4G5 SE 4G5 $$ FORECASTER...ROGERS REQUESTED BY...LINDY MCNEILUS TYPE OF REQUEST...PRESCRIBED .TAG 20110506.ZILME.01/FGF