FNUS73 KFGF 231500 FWSFGF SPOT FORECAST FOR COPPER CITY 2...MN-RLA NATIONAL WEATHER SERVICE GRAND FORKS ND 1000 AM CDT THU APR 23 2009 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 23. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WEATHER CONDITIONS MAY APPROACH CRITICAL CRITERIA THIS AFTERNOON. SOUTHERLY WINDS WILL INCREASE AHEAD OF AN APPROACHING COLD FRONT FROM THE NORTHWEST. WINDS SHOULD TOP OUT NEAR 15 MPH WITH GUSTS UP TO 25 MPH. WARM TEMPERATURES AND THE WINDS WILL COMBINE TO HELP CREATE VERY LOW RELATIVE HUMIDITY NEAR 20 PERCENT. FURTHERMORE...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AHEAD OF THE FRONT. SHOWERS WILL BECOME MORE AND MORE LIKELY INTO THE EVENING. ONLY A FEW HUNDREDTHS OF PRECIPITATION ARE LIKELY THROUGH THE AFTERNOON. HOWEVER...ANY THUNDERSTORMS COULD DROP MORE PRECIPITATION AND ALSO CREATE ERRATIC WINDS. THE COLD FRONT SHOULD PUSH THROUGH THE BURN SITE LATE THIS AFTERNOON. WINDS MAY BECOME LIGHT AND VARIABLE FOR A COUPLE HOUR WINDOW DURING THE FRONTAL PASSAGE...BUT THEN INCREASE AND TURN TO THE NORTHWEST BEHIND THE FRONT. HUMIDITY AND TEMPERATURES WILL DECREASE BEHIND THE FRONT. FRIDAY LOOKS CLOUDY...WETTER...BREEZY FROM THE NORTH...AND MUCH COOLER. .TODAY... SKY/WEATHER.........PARTLY SUNNY. SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....70-75. MIN HUMIDITY........21-26 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH EARLY IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. MIXING HEIGHT.......900-2600 FT AGL INCREASING TO 1600-3100 FT AGL EARLY IN THE AFTERNOON. MIXING WINDS........SOUTH 17 TO 26 MPH. TIME (CDT) 1 PM 3 PM 5 PM SKY (%).........50 59 69 WEATHER COV.....SCTTRD SCTTRD SCTTRD WEATHER TYPE....RNSHWR RNSHWR RNSHWR TEMP............68 71 73 RH..............26 27 31 20 FT WIND......S 15 S 14 SE 12 20 FT WIND GUST.25 20 15 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN RAIN SHOWERS LIKELY AFTER MIDNIGHT. MIN TEMPERATURE.....38-43. MAX HUMIDITY........77-82 PERCENT. WIND (20 FT)........NORTH WINDS 11 TO 16 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. MIXING HEIGHT.......800-2300 FT AGL. MIXING WINDS........SOUTHWEST 15 TO 22 MPH INCREASING TO NORTH 30 TO 38 MPH EARLY IN THE EVENING...THEN DECREASING TO 28 TO 33 MPH AFTER MIDNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........75 75 73 72 77 84 WEATHER COV.....CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............72 64 56 50 45 42 RH..............35 45 58 68 76 79 20 FT WIND......SE 9 SE 12 E 14 NE 16 NE 16 N 15 20 FT WIND GUST.15 15 20 20 20 20 .FRIDAY... SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS. MAX TEMPERATURE.....42-47. MIN HUMIDITY........60-65 PERCENT. WIND (20 FT)........NORTH WINDS 12 TO 17 MPH WITH GUSTS TO AROUND 25 MPH. MIXING HEIGHT.......1600-3400 FT AGL INCREASING TO 3600-4100 FT AGL IN THE AFTERNOON. MIXING WINDS........NORTH 26 TO 35 MPH DECREASING TO 18 TO 24 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........89 89 87 85 86 89 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............40 41 43 44 45 45 RH..............82 79 72 69 65 64 20 FT WIND......N 15 N 16 N 17 N 17 N 17 N 16 20 FT WIND GUST.20 20 25 25 25 20 $$ FORECASTER...GROCHOCINSKI REQUESTED BY...GREG PETERSON TYPE OF REQUEST...PRESCRIBED .TAG 20090423.COPPE.01/FGF