024 FNUS73 KDTX 251216 FWSDTX Spot Forecast for Bird Hills Controlled Burn...City of ann Arbor , NAP National Weather Service Detroit/Pontiac MI 816 AM EDT Tue Apr 25 2017 Forecast is based on ignition time of 0800 EDT on April 25. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Moisture will be on the increase today resulting in mostly cloudy skies. Afternoon minimum RH values are expected to be around 50 percent. Moderate southeast winds through the day. Turning much warmer on Wednesday as winds turn southerly. Minimum RH values on Wednesday will again be around 50 percent. .TODAY... Sky/weather.........Cloudy (85-95 percent) becoming partly sunny (50-60 percent). Max temperature.....66-71. Min humidity........55 percent. Eye level winds.....Southeast winds 6 to 11 mph. Mixing height.......500-2200 ft AGL. Transport winds.....Southeast 8 to 15 mph. Smoke dispersal.....Poor to good (0-30000 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%)..........94 94 94 94 85 66 57 53 49 46 Weather cov...... Weather type..... Tstm cov......... Temp.............51 52 54 57 61 64 66 68 69 69 RH...............79 78 75 68 63 60 57 56 55 55 Eye lvl wnd dir..SE SE SE SE SE SE SE SE SE SE Eye lvl wnd spd..5 5 6 6 6 7 7 7 7 7 Eye lvl wnd gst..10 10 15 15 15 15 15 15 15 15 Mix hgt (kft)....0.7 0.9 1.1 1.4 1.6 1.9 2.1 2.2 2.2 2.1 Transp wind dir..SE SE SE SE SE SE SE SE SE SE Transp wind spd..9 10 14 15 15 14 14 14 13 14 Haines index....3 3 3 3 3 3 3 3 3 3 VRate kt-ft/1000.10 10 10 20 20 20 20 30 30 20 .TONIGHT... Sky/weather.........Partly cloudy (55-65 percent). Min temperature.....49-54. Max humidity........91 percent. Eye level winds.....Southeast winds 6 to 11 mph. Mixing height.......400-1800 ft AGL. Transport winds.....Southeast 6 to 14 mph. Smoke dispersal.....Poor to fair (0-20000 knot-ft). Haines Index........3 to 4 or very low to low potential for large plume dominated fire growth. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%)..........48 53 60 64 67 68 Weather cov...... Weather type.....NONE NONE NONE NONE NONE NONE Tstm cov......... Temp.............69 66 61 58 56 54 RH...............56 61 70 79 82 84 Eye level wind...SE 7 SE 6 SE 5 SE 5 SE 5 SE 5 Eye lvl wnd gst..15 15 10 10 10 10 Mix hgt (ft).....1800 1000 600 500 500 400 Transport wind...SE 14 SE 14 SE 10 SE 7 SE 6 SE 6 Haines index....3 3 3 3 4 4 VRate kt-ft/1000.20 10 10 0 0 0 .WEDNESDAY... Sky/weather.........Partly sunny (50-60 percent). Max temperature.....75-80. Min humidity........49 percent. Eye level winds.....South winds 9 to 14 mph. Mixing height.......400-1600 ft AGL increasing to 4600-4700 ft AGL. Transport winds.....South 6 to 15 mph increasing to 29 to 31 mph. Smoke dispersal.....Poor to excellent (0-130000 knot-ft). Haines Index........2 to 4 or very low to low potential for large plume dominated fire growth. TIME (EDT) 6 AM 9 AM NOON 3 PM Sky (%)..........68 61 45 46 Weather cov...... Weather type.....NONE NONE NONE NONE Tstm cov......... Temp.............52 57 71 78 RH...............90 84 61 51 Eye level wind...SE 5G10 SE 6G10 SE 7G20 S 8G25 Mix hgt (ft).....400 400 1600 4200 Transport wind...SE 6 SE 8 S 20 S 31 Haines index....4 3 4 3 VRate kt-ft/1000.0 0 30 110 $$ Forecaster...Gurney Requested by...Dave Borneman Type of request...PRESCRIBED .TAG 1707724.0/DTX .EMAIL nap@a2gov.org