FNUS73 KFGF 251420 FWSFGF SPOT FORECAST FOR JACOBSON BLACK LINE...US FISH AND WILDLIFE NATIONAL WEATHER SERVICE GRAND FORKS ND 920 AM CDT THU MAR 25 2010 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON MARCH 25. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... MUCH COLDER AIR WILL BE OVER THE AREA TODAY AS HIGH PRESSURE SETTLES IN. WINDS WILL DIMINISH TODAY AS THE HIGH MOVES IN CLOSER AND THE PRESSURE GRADIENT WEAKENS. LOOK FOR A CONTINUED VERY DRY AIRMASS OVER THE BURN AREA WHERE RELATIVE HUMIDITIES WILL RANGE FROM 23 TO 28 PERCENT THROUGH THE AFTERNOON. CLOUDS WILL MOVE BACK IN TONIGHT AS WINDS TURN SOUTHERLY AND INCREASE ON FRIDAY. LOOK FOR CLOUDS AS MOISTURE INCREASES AND A SLIGHT CHANCE FOR PRECIPITATION TO SPREAD EASTWARD FRIDAY AFTERNOON INTO SATURDAY. THIS SYSTEM IS VERY WEAK AND THUS ANY PRECIPITATION AMOUNTS WILL BE VERY LIGHT. .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....30-35. MIN HUMIDITY........18-23 PERCENT. WIND (20 FT)........NORTHEAST WINDS 5 TO 9 MPH UNTIL LATE AFTERNOON BECOMING LIGHT. MIXING HEIGHT.......2000-3600 FT AGL INCREASING TO 3700-4200 FT AGL IN THE AFTERNOON. MIXING WINDS........NORTH 9 TO 18 MPH DECREASING TO 5 TO 7 MPH IN THE AFTERNOON. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........42 42 42 42 42 42 44 WEATHER COV..... WEATHER TYPE.... TEMP............27 29 30 31 31 32 31 RH..............26 24 23 23 24 25 27 20 FT WIND DIR..NE NE NE NE E E E 20 FT WIND SPD..5 5 5 4 3 3 2 20 FT WIND GUST.10 10 5 5 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY BECOMING MOSTLY CLOUDY. MIN TEMPERATURE.....21-26. MAX HUMIDITY........62-67 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 8 TO 13 MPH WITH GUSTS TO AROUND 20 MPH IN THE LATE EVENING AND OVERNIGHT. MIXING HEIGHT.......1700-3500 FT AGL DECREASING TO 400-1200 FT AGL AFTER MIDNIGHT. MIXING WINDS........SOUTHEAST 5 TO 12 MPH INCREASING TO 15 TO 24 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........46 54 64 73 77 78 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............31 29 27 26 24 24 RH..............28 34 40 46 51 55 20 FT WIND......E 2 SE 3 SE 5 SE 7 SE 9 SE 11 20 FT WIND GUST. 5 10 15 15 .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY. MAX TEMPERATURE.....43-48. MIN HUMIDITY........47-52 PERCENT. WIND (20 FT)........SOUTH WINDS 13 TO 18 MPH WITH GUSTS TO AROUND 25 MPH. MIXING HEIGHT.......300-1800 FT AGL. MIXING WINDS........SOUTH 24 TO 30 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........78 76 74 78 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............23 29 39 45 RH..............62 63 54 54 20 FT WIND......SE 14G20 S 15G20 S 16G25 S 14G20 $$ FORECASTER...HOPKINS REQUESTED BY...CORY HENRY TYPE OF REQUEST...PRESCRIBED .TAG 20100325.JACOB.01/FGF