FNUS73 KAPX 211151 FWSAPX SPOT FORECAST FOR CURTIS PINE FUELS...USDA FOREST SERVICE NATIONAL WEATHER SERVICE GAYLORD MI 751 AM EDT WED APR 21 2010 FORECAST IS BASED ON IGNITION TIME OF 1200 EDT ON APRIL 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A COLD FRONT WILL PUSH ACROSS THE IGNITION SITE AROUND MID MORNING WITH WINDS SLOWLY TRANSITIONING FROM THE NORTHWEST EARLY THIS MORNING TO NORTH BY LATE MORNING. THE WINDS MAY BRIEFLY TRANSITION FROM THE NORTH TO NORTHEAST THIS AFTERNOON WITH SOME INFLUENCE FROM LAKE HURON. OTHERWISE...A COOLER DAY IS ON TAP WITH HIGHS IN THE MID 50S AND THE RELATIVE HUMIDITIES THIS AFTERNOON REMAINING BETWEEN 35 AND 40 PERCENT. SOME CLOUD COVER IS EXPECTED WITH THE FRONT THROUGH THE MORNING HOURS...BUT THEN SUNSHINE SHOULD MAKE A RETURN THIS AFTERNOON. .TODAY... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING MOSTLY SUNNY (20-30 PERCENT) THIS AFTERNOON. TEMPERATURE.........53 AT IGNITION...MAX 55. MIN HUMIDITY........41 PERCENT AT IGNITION...MIN 37 PERCENT. WIND (20 FT)........WINDS NORTHWEST AT 8 MPH AT IGNITION...OTHERWISE NORTHWEST WINDS AROUND 5 MPH BECOMING NORTH 5 TO 10 MPH LATE IN THE MORNING. TRANSPORT WINDS.....NORTH 8 TO 14 MPH. MIXING HEIGHT.......100-700 FT AGL INCREASING TO 2900 FT AGL AT IGNITION...OTHERWISE 2900-4300 FT AGL IN THE AFTERNOON. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 4. SMOKE DISPERSAL.....GOOD (300) AT IGNITION. MAX...EXCELLENT (600). TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........58 45 25 25 25 24 WEATHER COV..... WEATHER TYPE.... TEMP............53 55 55 55 55 55 RH..............41 38 38 38 37 37 20 FT WIND DIR..N N N N N N 20 FT WIND SPD..7 8 8 9 9 9 20 FT WIND GUST.15 15 20 20 20 20 HAINES INDEX....3 3 3 3 3 3 SMOKE DISP......300 400 400 500 600 600 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT). MIN TEMPERATURE.....25. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........NORTH WINDS 5 TO 10 MPH. TRANSPORT WINDS.....NORTH 7 TO 15 MPH. MIXING HEIGHT.......3000 FT AGL DECREASING TO 0-300 FT AGL IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....MIN POOR(0). TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).........24 24 37 37 37 37 37 37 33 33 33 33 WEATHER COV..... WEATHER TYPE.... TEMP............54 49 42 40 39 37 35 33 31 29 28 27 RH..............38 44 57 59 59 61 66 69 75 81 85 92 20 FT WIND DIR..N N N N N N N N NW N N N 20 FT WIND SPD..9 7 7 6 5 5 6 6 7 7 6 6 20 FT WIND GUST.20 15 15 15 10 10 10 15 15 15 15 15 SMOKE DISP......600 600 400 300 100 0 0 0 0 0 0 0 .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING PARTLY CLOUDY (40-50 PERCENT). MAX TEMPERATURE.....53. MIN HUMIDITY........32 PERCENT. WIND (20 FT)........EAST WINDS 5 TO 6 MPH. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........33 23 23 23 45 45 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............25 30 40 47 51 53 RH..............100 88 57 42 34 33 20 FT WIND......N 6 NE 6 NE 5 NE 5 N 5 E 6 20 FT WIND GUST.15 15 10 10 10 10 $$ FORECASTER...KEVIN SULLIVAN REQUESTED BY...BEN EBY TYPE OF REQUEST...PRESCRIBED .TAG 20100421.CURTI.01/APX