FNUS73 KDTX 031223 FWSDTX SPOT FORECAST FOR STERLING SPARK...MI DNR NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 823 AM EDT WED APR 3 2013 FORECAST IS BASED ON IGNITION TIME OF 1230 EDT ON APRIL 03. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WINDS AT THE STERLING PARK BURN SITE ARE FORECAST TO REMAIN LIGHT AND VARIABLE THROUGH MID-MORNING BEFORE INCREASING TO 10 TO 14 MPH OUT OF THE NORTHWEST DURING THE LATE MORNING AND EARLY AFTERNOON. AS HIGH PRESSURE TRANSITS THE AREA LATE TODAY...WINDS WILL ROTATE THROUGH A NORTHERLY AND THEN EASTERLY DIRECTION BY LATE THIS EVENING BEFORE SETTLING ON A SOUTHERLY TO OCCASIONALLY VARIABLE TRAJECTORY OVERNIGHT. WINDS ON THURSDAY WILL BE ORIENTED FIRMLY OUT OF THE SOUTHWEST ALONG WITH AN INCREASED GUST POTENTIAL TO AROUND 20 MPH DURING EARLY AFTERNOON PEAK HEATING. RELATIVE HUMIDITIES ON EACH AFTERNOON WILL BOTTOM OUT IN THE 27 TO 33 PERCENT RANGE WITH GOOD OVERNIGHT RECOVERY TO AROUND 70 PERCENT EXPECTED UNDER MOSTLY CALM CONDITIONS. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). TEMPERATURE.........40 AT IGNITION...MAX 43. RH..................42 PERCENT AT IGNITION...MIN 32 PERCENT. EYE LEVEL WINDS.....WEST WINDS 7 TO 10 MPH...BECOMING SOUTH 5 TO 10 MPH LATE. WIND (20 FT)........WINDS WEST AT 14 MPH AT IGNITION...OTHERWISE WEST WINDS 7 TO 12 MPH...BECOMING SOUTH 5 TO 10 MPH LATE. TRANSPORT WINDS.....NORTHWEST 16 TO 25 MPH...DECREASING TO 8 TO 14 MPH BY MID AFTERNOON...THEN...BECOMING SOUTHWEST AROUND 7 MPH EARLY IN THE EVENING. MIXING HEIGHT.......6000 FT AGL. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 4. VENTILATION RATE....EXCELLENT (MAX...1200). TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM SKY (%).........16 19 21 19 17 14 12 10 WEATHER COV..... WEATHER TYPE.... TEMP............38 40 41 42 43 43 42 41 RH..............42 37 34 34 35 37 39 41 20 FT WIND DIR..NW W W W S SE S S 20 FT WIND SPD..9 8 7 7 7 7 7 7 20 FT WIND GUST.15 15 15 15 15 10 10 10 EYE LVL WND DIR.NW W W W S SE S S EYE LVL WND SPD.9 8 7 7 7 7 7 7 EYE LVL WND GST.15 15 15 15 15 10 10 10 MIX HGT (KFT)...5.4 5.6 5.6 5.4 5.1 4.9 4.8 4.7 HAINES INDEX....3 3 3 3 3 3 3 4 VRATE (KT-FT)...11001000800 600 500 400 300 300 .TONIGHT... SKY/WEATHER.........CLEAR (5-15 PERCENT). TEMPERATURE.........MIN 27. RH..................MAX 75 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 2 TO 5 MPH. WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH. TRANSPORT WINDS.....SOUTH 7 TO 8 MPH. MIXING HEIGHT.......2700 FT AGL...DECREASING TO 2100 FT AGL EARLY. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. VENTILATION RATE....POOR (MIN...100). TIME (EDT) 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM SKY (%).........7 8 8 8 11 14 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............39 34 31 29 28 27 RH..............46 57 62 67 70 73 20 FT WIND DIR..S S S S SW S 20 FT WIND SPD..6 5 5 6 5 7 20 FT WIND GUST.10 10 EYE LEVEL WIND..S 6 S 5 S 5 S 6 SW 5 S 7 EYE LEVEL WIND..10 10 MIX HGT (FT)....4600 4000 3700 3700 3500 2700 HAINES INDEX....4 4 4 4 4 4 VRATE (KT-FT)...300 200 200 300 200 200 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). TEMPERATURE.........MAX 53. RH..................MIN 38 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 8 TO 13 MPH. WIND (20 FT)........SOUTHWEST WINDS 9 TO 14 MPH. TRANSPORT WINDS.....SOUTHWEST 7 TO 16 MPH...INCREASING TO 14 TO 17 MPH BY AFTERNOON. MIXING HEIGHT.......3000 FT AGL. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. VENTILATION RATE....GOOD (MAX...400). $$ FORECASTER...CLARK REQUESTED BY...RANDY MCKENZIE TYPE OF REQUEST...PRESCRIBED .TAG 20130403.STERL.01/DTX