FNUS73 KAPX 121327 FWSAPX SPOT FORECAST FOR JOE S FIRST...STATE OF MICHIGAN NATIONAL WEATHER SERVICE GAYLORD MI 927 AM EDT TUE MAY 12 2009 FORECAST IS BASED ON IGNITION TIME OF 1030 EDT ON MAY 12. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...THE MAIN CONCERN WITH THE FORECAST AREA IS THE MINIMUM RELATIVE HUMIDITY. THE HIGH PRESSURE THAT IS PRODUCING THE DRY AIR IS SLOWLY MOVING TO THE EAST. THIS WILL ALLOW FOR THE SOUTH 20-FOOT WIND TO INCREASE SLOWLY TODAY TO AROUND 10 MPH. THIS MAY ALLOW THE MOISTURE FROM GULF OF MEXICO TO POSSIBLY INCREASE THE RELATIVE HUMIDITY. HOWEVER...THE BEST GUESS IS THAT THE RELATIVE HUMIDITY WILL BE SIMILAR TO YESTERDAY WITH THE RANGE IN THE 15 TO 20 PERCENT RANGE. .TODAY... SKY/WEATHER.........BECOMING MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING PARTLY CLOUDY (40-50 PERCENT). TEMPERATURE.........52 AT IGNITION...MAX 66. RH..................48 PERCENT AT IGNITION...MIN 15 PERCENT. WIND (20 FT)........WINDS SOUTHWEST AT 7 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING WEST 5 TO 9 MPH WITH GUSTS TO AROUND 20 MPH EARLY IN THE MORNING. TRANSPORT WINDS.....SOUTHWEST 5 TO 13 MPH SHIFTING TO THE WEST 10 TO 16 MPH LATE IN THE MORNING. MIXING HEIGHT.......INCREASING TO 8900-9900 FT AGL. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 5. SMOKE DISPERSAL.....EXCELLENT (1300) AT IGNITION. MAX...EXCELLENT (1700). TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........26 20 20 20 42 42 42 50 WEATHER COV..... WEATHER TYPE.... TEMP............49 52 55 58 60 63 63 62 RH..............48 39 32 27 24 18 16 19 20 FT WIND DIR..SW SW SW SW W W W W 20 FT WIND SPD..6 7 7 8 8 7 7 6 20 FT WIND GUST.10 10 10 15 15 15 15 10 HAINES INDEX....4 4 4 4 4 4 4 4 SMOKE DISP......800 130016001700150014001200900 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). TEMPERATURE.........MIN 43. RH..................MAX 57 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 9 MPH WITH GUSTS TO AROUND 20 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........50 32 32 30 53 53 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............62 60 53 48 47 46 RH..............20 24 33 44 47 51 20 FT WIND......NW 4 E 1 SE 5 S 7 S 7 S 7 20 FT WIND GUST. 10 10 10 .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT) THEN BECOMING MOSTLY CLOUDY (85-95 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE AFTERNOON. TEMPERATURE.........MAX 64. RH..................MIN 36 PERCENT. WIND (20 FT)........SOUTH WINDS 9 TO 18 MPH WITH GUSTS TO AROUND 25 MPH INCREASING TO AROUND 20 MPH WITH GUSTS TO AROUND 30 MPH LATE IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE AFTERNOON. TIME (EDT) 6 AM 9 AM NOON 3 PM SKY (%).........63 81 81 100 WEATHER COV..... CHANCE WEATHER TYPE....NONE NONE NONE RNSHWR TEMP............44 49 57 63 RH..............57 50 42 36 20 FT WIND......S 8G15 S 11G17 S 16G24 S 17G25 $$ FORECASTER...JEFF LUTZ REQUESTED BY...JIM FISHER TYPE OF REQUEST...PRESCRIBED .TAG 20090512.JOESF.01/APX