FNUS73 KFGF 211223 FWSFGF SPOT FORECAST FOR ERHARDS GROVE...USFWS FERGUS FALLS NATIONAL WEATHER SERVICE GRAND FORKS ND 723 AM CDT THU MAY 21 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MAY 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... BUILDING HIGH PRESSURE INTO THE VALLEY WILL PRODUCE A SUNNY AND MILD DAY IN THE 60S. THERE MAY BE SOME LINGERING CLOUDS AND A FEW SPRINKLES FROM BEFORE NOON BEFORE EXITING TO THE SOUTH AND EAST. LIGHT NORTHWEST WINDS AROUND BURN TIME WILL BEGIN TO WEAKEN AFTER MID AFTERNOON...BUT THINKING THE NORTHWEST DIRECTION WILL HOLD UNTIL THE EARLY EVENING. GOOD SUNSHINE AND GOOD POTENTIAL FOR MIXING OF DRIER AIR ALOFT SHOULD ALLOW THE RELATIVE HUMIDITY TO DROP TO 25 TO 30 PERCENT. WOULD NOT EXPECT LOWER RH...BUT COULD BE SLIGHTLY HIGHER DUE TO THE LINGERING CLOUD COVER THIS MORNING. SMOKE DISPERSION LOOKS EXCELLENT UNTIL THE EARLY EVENING WHEN THE WINDS REALLY SLACK OFF. OUR FORECAST IS FOR A SUNNY...SLIGHTLY WARMER...DRY FRIDAY WITH LIGHT SOUTHERLY WINDS. .TODAY... SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SPRINKLES EARLY IN THE MORNING. MAX TEMPERATURE.....64-69. MIN HUMIDITY........26-31 PERCENT. WIND (20 FT)........NORTHWEST WINDS 11 TO 16 MPH. MIXING HEIGHT.......2100-3700 FT AGL INCREASING TO 7000-8000 FT AGL. MIXING WINDS........NORTHWEST 17 TO 23 MPH. TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........50 45 40 36 32 30 28 27 26 25 WEATHER COV.....ISO ISO WEATHER TYPE....RW RW TEMP............56 57 60 61 63 65 65 66 66 66 RH..............60 54 49 39 34 33 31 31 32 34 20 FT WIND DIR..NW NW NW NW NW NW NW NW NW N 20 FT WIND SPD..11 12 14 14 14 14 14 12 10 9 20 FT WIND GUST.15 20 20 20 20 20 20 20 15 15 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. MIN TEMPERATURE.....41-46. MAX HUMIDITY........68-73 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH. MIXING HEIGHT.......7100 FT AGL DECREASING TO 300-800 FT AGL. MIXING WINDS........NORTH 10 TO 17 MPH SHIFTING TO THE SOUTHEAST 7 TO 12 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........25 25 26 29 34 41 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............65 60 54 50 46 44 RH..............36 42 51 57 62 68 20 FT WIND......N 8 N 6 E 5 E 5 SE 5 SE 6 20 FT WIND GUST.15 10 10 10 10 .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....66-71. MIN HUMIDITY........23-28 PERCENT. WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH. MIXING HEIGHT.......300-1600 FT AGL INCREASING TO 2800-3900 FT AGL LATE IN THE MORNING...THEN INCREASING TO 5100-6900 FT AGL EARLY IN THE AFTERNOON DECREASING TO 4700 FT AGL LATE IN THE AFTERNOON DECREASING TO 2600 FT AGL. MIXING WINDS........SOUTH 12 TO 21 MPH SHIFTING TO THE SOUTHWEST 16 TO 24 MPH IN THE LATE MORNING AND AFTERNOON...THEN DECREASING TO AROUND 13 MPH LATE IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........46 50 51 52 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............44 55 64 68 RH..............73 47 31 28 20 FT WIND......SE 8G15 S 9G15 S 9G15 S 8G15 $$ FORECASTER...GROCHOCINSKI REQUESTED BY...TROY BOSCHEE TYPE OF REQUEST...PRESCRIBED .TAG 20090521.ERHAR.01/FGF