FNUS73 KDTX 041611 FWSDTX SPOT FORECAST FOR ALGONAC UNIT 1...MI DNR NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1211 PM EDT THU APR 4 2013 FORECAST IS BASED ON IGNITION TIME OF 1400 EDT ON APRIL 04. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... TEMPERATURES AND WINDS WILL BOTH INCREASE TODAY AS SOUTHWEST FLOW DEVELOPS IN ADVANCE OF AN APPROACHING COLD FRONT. THE COLD FRONT WILL CROSS THE AREA TONIGHT AND BRING COLDER WEATHER AGAIN ON FRIDAY AS HIGH PRESSURE BUILDS INTO THE AREA WITH ITS PASSAGE. .REST OF TODAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). TEMPERATURE.........47 AT IGNITION...MAX 53. RH..................31 PERCENT AT IGNITION...MIN 25 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 8 TO 13 MPH. WIND (20 FT)........WINDS SOUTH AT 16 MPH AT IGNITION...OTHERWISE SOUTHWEST WINDS 8 TO 13 MPH. TRANSPORT WINDS.....SOUTHWEST 13 TO 20 MPH. MIXING HEIGHT.......3400 FT AGL...INCREASING TO 3800 FT AGL EARLY THIS EVENING. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 5. VENTILATION RATE....GOOD (MAX...500). TIME (EDT) 2PM 3PM 4PM 5PM 6PM 7PM SKY (%).........21 23 25 27 29 31 WEATHER COV..... WEATHER TYPE.... TEMP............47 50 53 53 52 49 RH..............31 27 25 25 28 34 20 FT WIND DIR..S S SW SW SW S 20 FT WIND SPD..13 13 12 11 10 9 20 FT WIND GUST.25 25 25 20 20 15 EYE LVL WND DIR.S S SW SW SW S EYE LVL WND SPD.13 13 12 11 10 9 EYE LVL WND GST.25 25 25 20 20 15 MIX HGT (KFT)...2.1 2.4 2.8 3.1 3.4 3.8 HAINES INDEX....4 4 4 4 4 5 VRATE (KT-FT)...300 400 500 500 500 400 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). TEMPERATURE.........MIN 32. RH..................MAX 88 PERCENT. EYE LEVEL WINDS.....SOUTHWEST BECOMING NORTH WINDS 5 TO 10 MPH. WIND (20 FT)........SOUTHWEST BECOMING NORTH WINDS 5 TO 10 MPH. TRANSPORT WINDS.....SOUTHWEST 7 TO 9 MPH...BECOMING NORTH LATE. MIXING HEIGHT.......2300 FT AGL...INCREASING TO 4500 FT AGL EARLY. HAINES INDEX........2 TO 5 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. VENTILATION RATE....FAIR (MIN...200). TIME (EDT) 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM SKY (%).........33 42 52 61 53 45 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............45 40 38 39 38 34 RH..............43 57 66 71 75 85 20 FT WIND DIR..S SW W NW NW N 20 FT WIND SPD..8 7 6 6 7 7 20 FT WIND GUST.10 10 10 10 10 15 EYE LEVEL WIND..S 8 SW 7 W 6 NW 6 NW 7 N 7 EYE LEVEL WIND..10 10 10 10 10 15 MIX HGT (FT)....3900 3800 3400 2800 2300 3400 HAINES INDEX....5 5 4 2 2 2 VRATE (KT-FT)...300 200 200 200 200 200 .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). TEMPERATURE.........MAX 42. RH..................MIN 40 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS 8 TO 13 MPH. WIND (20 FT)........NORTHEAST WINDS 8 TO 13 MPH. TRANSPORT WINDS.....NORTH 12 TO 21 MPH. MIXING HEIGHT.......5200 FT AGL...DECREASING TO 2700 FT AGL EARLY IN THE EVENING. HAINES INDEX........3 TO 4 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. VENTILATION RATE....EXCELLENT (MAX...700). $$ FORECASTER...TILLEY REQUESTED BY...RANDY MCKENZIE TYPE OF REQUEST...PRESCRIBED .TAG 20130404.ALGON.01/DTX