FNUS73 KFGF 231305 FWSFGF SPOT FORECAST FOR GLACIAL RIDGE...US FISH AND WILDLIFE NATIONAL WEATHER SERVICE GRAND FORKS ND 805 AM CDT THU APR 23 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 23. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A STRONG COLD FRONT WILL SWEEP THROUGH THE AREA TODAY. BREEZY SOUTH/SOUTHWEST WINDS AHEAD OF THE FRONT WILL SHIFT TO THE NORTH BEHIND. BEST ESTIMATED POSITION OF THE COLD FRONT WILL BE NEAR THE BURN AREA AROUND 4 PM. BY THE TIME OF COLD FRONT PASSAGE TEMPERATURES WILL BE IN THE LOW 70S. LIKEWISE...MINIMUM HUMIDITIES WILL RANGE AROUND 30 PERCENT. ANY LOCALIZED CHANGES IN TEMPERATURE OR DEWPOINTS WILL CAUSE CORRESPONDING CHANGES IN HUMIDITIES...AND CONDITIONS MAY APPROACH CRITICAL CRITERIA AS A RESULT. SCATTERED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON ALONG WITH THE FRONTAL PASSAGE. OTHERWISE...RAIN OR A RAIN/SNOW MIX WILL OCCUR BEHIND THE FRONT TONIGHT INTO FRIDAY NIGHT. .TODAY... SKY/WEATHER.........MOSTLY SUNNY BECOMING MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....71-76. MIN HUMIDITY........28-33 PERCENT. WIND (20 FT)........NORTHWEST WINDS 11 TO 16 MPH WITH GUSTS TO AROUND 25 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. MIXING HEIGHT.......300-1900 FT AGL INCREASING TO 2300-3900 FT AGL IN THE AFTERNOON. MIXING WINDS........NORTHWEST 12 TO 18 MPH. TIME (CDT) 10 AM NOON 2 PM 4 PM 6 PM SKY (%).........40 46 55 64 74 WEATHER COV..... SCTTRD SCTTRD SCTTRD WEATHER TYPE....NONE NONE RNSHWR RNSHWR RNSHWR TEMP............55 64 70 72 73 RH..............39 34 32 35 38 20 FT WIND......S 14 S 16 S 16 W 14 NW 13 20 FT WIND GUST.20 25 25 20 20 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN RAIN SHOWERS LIKELY AFTER MIDNIGHT. MIN TEMPERATURE.....40-45. MAX HUMIDITY........71-76 PERCENT. WIND (20 FT)........NORTH WINDS 11 TO 16 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. MIXING HEIGHT.......2600-4400 FT AGL DECREASING TO 2400 FT AGL EARLY IN THE MORNING. MIXING WINDS........NORTH 22 TO 29 MPH INCREASING TO 30 TO 38 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........78 85 89 91 90 89 WEATHER COV.....CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............72 64 56 51 47 44 RH..............41 48 57 63 68 73 20 FT WIND......N 12 N 13 N 14 N 15 N 16 N 16 20 FT WIND GUST.15 15 20 20 20 20 .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. MAX TEMPERATURE.....43-48. MIN HUMIDITY........60-65 PERCENT. WIND (20 FT)........NORTH WINDS 12 TO 17 MPH. GUSTS UP TO 25 MPH. MIXING HEIGHT.......2300-4100 FT AGL INCREASING TO 4400-5200 FT AGL IN THE AFTERNOON. MIXING WINDS........NORTH 23 TO 32 MPH DECREASING TO 15 TO 22 MPH LATE IN THE MORNING. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........87 88 89 89 87 84 WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............42 43 44 44 45 45 RH..............76 73 70 70 65 65 20 FT WIND......N 17 N 17 N 17 N 17 N 16 N 14 20 FT WIND GUST.25 25 25 25 20 20 $$ FORECASTER...HOPKINS REQUESTED BY...PATRICK WAGNER TYPE OF REQUEST...PRESCRIBED .TAG 20090423.GLACI.01/FGF