FNUS73 KAPX 241612 AAA FWSAPX SPOT FORECAST FOR BIG GULCH RX...UPDATED NATIONAL WEATHER SERVICE GAYLORD MI 1212 PM EDT WED MAR 24 2010 FORECAST IS BASED ON IGNITION TIME OF 1600 EDT ON MARCH 24. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...UPDATED FOR HIGH TEMPERATURES TODAY. HIGH PRESSURE CONTINUES OVER THE REGION TODAY...PRODUCING LOW RELATIVE HUMIDITY AND LIGHT WINDS. WITH THE HIGHER TERRAIN TO THE NORTH OF THE BURN AREA...IT IS POSSIBLE THAT A LIGHT SOUTH WIND COULD DEVELOP IN THE AFTERNOON. OTHERWISE...THE LIGHT WIND WILL TURN FROM THE WEST THE LATER IN THE AFTERNOON. AN APPROACHING DRY COLD FRONT WILL BRING AN INCREASE TO THE WINDS OVERNIGHT. THIS APPROACHING COLD FRONT IS EXPECTED TO KEEP THE RELATIVE HUMIDITY A LITTLE HIGHER THAN YESTERDAY. .REST OF TODAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). TEMPERATURE.........58 AT IGNITION...MAX 59. MIN HUMIDITY........20 PERCENT AT IGNITION...MIN 19 PERCENT. WIND (20 FT)........WINDS NORTHWEST AT 2 MPH AT IGNITION...OTHERWISE LIGHT WINDS. TRANSPORT WINDS.....WEST 12 TO 14 MPH. MIXING HEIGHT.......4100 FT AGL INCREASING TO 6200 FT AGL AT IGNITION...OTHERWISE 6200 FT AGL LATE IN THE AFTERNOON. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 4. SMOKE DISPERSAL.....EXCELLENT (1000) AT IGNITION. MAX...EXCELLENT (1000). TIME (EDT) 4PM 5PM SKY (%).........19 19 WEATHER COV..... WEATHER TYPE.... TEMP............58 57 RH..............20 19 20 FT WIND DIR..NW W 20 FT WIND SPD..2 3 20 FT WIND GUST.5 10 HAINES INDEX....4 4 SMOKE DISP......1000900 .TONIGHT... MIN TEMPERATURE.....26. MAX HUMIDITY........85 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND 5 MPH AFTER MIDNIGHT. TRANSPORT WINDS.....WEST 9 TO 15 MPH. MIXING HEIGHT.......0-300 FT AGL. HAINES INDEX........MIN 4. SMOKE DISPERSAL.....MIN POOR(0). TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM TEMP............55 52 49 44 41 39 37 36 36 36 35 35 RH..............19 20 23 30 41 52 56 59 61 64 69 72 20 FT WIND DIR..W W W W W W W W SW SW W W 20 FT WIND SPD..4 4 4 3 2 2 3 4 5 5 5 5 20 FT WIND GUST.10 10 10 5 5 5 5 10 10 10 10 10 HAINES INDEX....4 4 4 4 5 5 5 5 5 5 4 4 SMOKE DISP......800 600 400 200 100 0 0 0 0 0 0 0 .THURSDAY... MAX TEMPERATURE.....44. MIN HUMIDITY........36 PERCENT. WIND (20 FT)........NORTH WINDS 5 TO 11 MPH. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM TEMP............33 27 32 38 42 44 RH..............75 85 66 48 36 36 20 FT WIND......W 5 NW 6 N 7 N 9 N 10 N 10 20 FT WIND GUST.10 15 15 20 20 20 $$ FORECASTER...JEFF LUTZ REQUESTED BY...BEN EBY TYPE OF REQUEST...PRESCRIBED .TAG 20100324.BIGGU.01/APX