FNUS73 KDTX 261252 FWSDTX SPOT FORECAST FOR HART ROAD...SHIAWASSE NWR USFWS NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 852 AM EDT MON MAR 26 2012 FORECAST IS BASED ON IGNITION TIME OF 0840 EDT ON MARCH 26. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... DRIER AND COOLER CONDITIONS WILL PREVAIL TODAY BEHIND A COLD FRONT MAKING ITS WAY THROUGH THE CENTRAL GREAT LAKES. THESE COOL CONDITIONS WILL LEAD TO A HARD FREEZE TONIGHT AS TEMPERATURES DROP DOWN INTO THE MIDDLE TO UPPER 20S. COOL AND DRY CONDITIONS WILL CONTINUE ON TUESDAY AS HIGH PRESSURE CONTINUES TO INFLUENCE THE GREAT LAKES REGION. MIN RH VALUES WILL DROP TO THE MID TO UPPER 30S TODAY AND TUESDAY WITH THIS COLD DRY AIRMASS IN PLACE. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT). AREAS OF FROST EARLY. MAX TEMPERATURE.....40-45. MIN HUMIDITY........37 PERCENT. WIND (20 FT)........NORTHEAST WINDS 8 TO 16 MPH. TRANSPORT WINDS.....NORTHEAST 17 TO 26 MPH. MIXING HEIGHT.......3300 FT AGL. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. VENTILATION RATE....GOOD (MAX...500). TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM SKY (%).........29 26 23 20 18 15 12 16 17 17 17 18 WEATHER COV.....ARS WEATHER TYPE....FST TEMP............29 31 33 36 38 40 42 43 43 43 42 40 RH..............72 67 61 53 48 44 42 39 38 37 39 41 20 FT WIND DIR..N N NE NE NE NE NE NE NE NE NE NE 20 FT WIND SPD..15 15 15 13 13 12 11 10 10 10 9 8 20 FT WIND GUST.27 26 26 25 25 25 25 20 20 20 15 15 MIX HGT (KFT)...2.7 2.8 3.0 3.1 3.2 3.3 3.3 3.2 3.0 2.8 2.5 2.3 HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 4 VRATE (KT-FT)...500 500 500 500 400 400 400 400 300 300 300 300 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). WIDESPREAD FROST BY LATE EVENING. MIN TEMPERATURE.....22-27. MAX HUMIDITY........77 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH. TRANSPORT WINDS.....SOUTHEAST 13 TO 14 MPH. VENTILATION RATE....POOR (MIN...100). TIME (EDT) 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM SKY (%).........18 17 15 14 22 30 WEATHER COV..... WIDSPD WIDSPD WIDSPD WIDSPD WIDSPD WEATHER TYPE....NONE FROST FROST FROST FROST FROST TEMP............37 34 31 29 27 26 RH..............45 51 57 62 70 77 20 FT WIND DIR..NE E E E SE SE 20 FT WIND SPD..7 7 6 6 6 6 20 FT WIND GUST.15 10 10 VRATE (KT-FT)...200 200 200 100 100 200 .TUESDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). WIDESPREAD FROST EARLY. A SLIGHT CHANCE OF RAIN SHOWERS BY EARLY AFTERNOON. CHANCE OF RAIN SHOWERS LATE. MAX TEMPERATURE.....AROUND 50. MIN HUMIDITY........38 PERCENT. WIND (20 FT)........SOUTH WINDS 12 TO 17 MPH. $$ FORECASTER...FREITAG REQUESTED BY...GARY LINDSAY TYPE OF REQUEST...PRESCRIBED .TAG 20120326.HARTR.01/DTX