FNUS73 KAPX 251406 FWSAPX SPOT FORECAST FOR SAND HILL CRANE...STATE OF MICHIGAN NATIONAL WEATHER SERVICE GAYLORD MI 1006 AM EDT MON APR 25 2011 FORECAST IS BASED ON IGNITION TIME OF 1230 EDT ON APRIL 25. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE WILL SLIDE OFF TO THE EAST TODAY...WINDS WILL BE LIGHT OUT OF THE EAST AND DOMINATED BY SOME UPSLOPE FLOW FROM ANY TERRAIN FEATURES NEARBY. THE RELATIVE HUMIDITY IS EXPECTED TO BE IN THE 35 TO 40 PERCENT RANGE TODAY...BUT THERE IS A POSSIBILITY THAT IT COULD DROP TO 30 TO 35 PERCENT DURING THE AFTERNOON IF THE CIRRUS THINS ENOUGH AND THE TEMPERATURE WARMS INTO THE LOWER 60S. .TODAY... SKY/WEATHER.........CLOUDY (95-100 PERCENT) THEN BECOMING PARTLY CLOUDY (50-60 PERCENT). TEMPERATURE.........55 AT IGNITION...MAX 60. RH..................52 PERCENT AT IGNITION...MIN 37 PERCENT. WIND (20 FT)........WINDS EAST AT 6 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING EAST 5 TO 6 MPH LATE IN THE MORNING. TRANSPORT WINDS.....SOUTHEAST 2 TO 8 MPH. MIXING HEIGHT.......0 FT AGL INCREASING TO 6300 FT AGL AT IGNITION...OTHERWISE 6200-6300 FT AGL. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 4. SMOKE DISPERSAL.....GOOD (500) AT IGNITION. MAX...GOOD (500). TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........66 66 46 46 46 46 WEATHER COV..... WEATHER TYPE.... TEMP............50 55 60 60 60 59 RH..............52 45 39 37 37 37 20 FT WIND DIR..E E E E E E 20 FT WIND SPD..5 6 6 6 6 6 20 FT WIND GUST.10 12 12 12 12 12 HAINES INDEX....4 4 4 4 3 3 SMOKE DISP......500 500 500 500 500 400 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN AFTER MIDNIGHT. TEMPERATURE.........MIN 42. RH..................MAX 76 PERCENT. WIND (20 FT)........EAST WINDS 4 TO 8 MPH. TRANSPORT WINDS.....NORTHEAST 6 TO 12 MPH. MIXING HEIGHT.......3400 FT AGL DECREASING TO 200-500 FT AGL IN THE LATE EVENING AND OVERNIGHT. HAINES INDEX........MIN 3. SMOKE DISPERSAL.....MIN POOR(0). TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........46 73 73 73 92 92 WEATHER COV..... CHANCE CHANCE WEATHER TYPE....NONE NONE NONE NONE RAIN RAIN TEMP............58 54 48 44 43 42 RH..............39 45 58 68 67 70 20 FT WIND......E 6 E 6 E 4 E 4 E 4 E 5 20 FT WIND GUST.12 10 HAINES INDEX....3 4 5 5 5 5 SMOKE DISP......500 400 100 0 0 0 $$ FORECASTER...JEFF LUTZ REQUESTED BY...RANDY MCKENZIE TYPE OF REQUEST...PRESCRIBED .TAG 20110425.SANDH.01/APX