163 FNUS73 KDTX 080730 FWSDTX SPOT FORECAST FOR IVES ROAD HEADQUARTERS PRAIRIES...THE NATURE CONSERVANCY NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 330 AM EDT FRI MAY 8 2015 FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON MAY 08. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WARM AND INCREASINGLY HUMID WEATHER CAN BE EXPECTED INTO THE WEEKEND WITH ABOVE NORMAL TEMPERATURES OVER MUCH OF THE AREA. THE SURFACE DEWPOINTS ARE EXPECTED TO HOLD IN THE 60S FOR THE MOST PART WHICH WILL KEEP DAYTIME MINIMUM RH VALUES ABOVE 30 PERCENT. THE POTENTIAL FOR SHOWERS AND THUNDERSTORMS WILL BEGIN TO INCREASE LATE TODAY AND THEN PERSIST THROUGHOUT THE WEEKEND. .TODAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). PATCHY FOG EARLY. ISOLATED SHOWERS IN THE AFTERNOON WITH A SLIGHT CHANCE OF AFTERNOON THUNDERSTORMS AS WELL. SCATTERED SHOWERS EARLY THIS EVENING. MAX TEMPERATURE.....81-86. MIN HUMIDITY........43 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 7 TO 12 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR ANY THUNDERSTORMS LATE THIS AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 3 TO 8 MPH...INCREASING TO 14 TO 20 MPH BY LATE MORNING. MIXING HEIGHT.......2100 FT AGL...INCREASING TO 6200 FT AGL BY LATE MORNING...THEN DECREASING TO 2200 FT AGL EARLY IN THE EVENING. VENTILATION RATE....EXCELLENT (MAX...1000). TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM SKY (%).........35 42 48 55 56 56 57 60 63 WEATHER COV..... ISO ISO ISO ISO ISO ISO ISO SCT WEATHER TYPE.... RW RW RW RW RW RW RW RW TEMP............79 81 82 83 83 84 84 82 80 RH..............51 49 48 47 45 43 42 45 51 20 FT WIND DIR..SW SW SW SW SW SW SW SW SW 20 FT WIND SPD..9 10 10 10 11 11 11 10 7 20 FT WIND GUST.15 15 20 20 20 20 20 15 15 MIX HGT (KFT)...6.2 6.2 5.6 5.0 5.4 6.0 5.9 4.3 2.2 VRATE (KT-FT)...900 1000900 800 900 10001000700 300 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT)BECOMING PARTLY CLOUDY (65-75 PERCENT)BECOMING MOSTLY CLOUDY (70-80 PERCENT) OVERNIGHT. SCATTERED SHOWERS THROUGH MIDNIGHT. CHANCE OF THUNDERSTORMS THROUGH THE NIGHT. NUMEROUS SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....59-64. MAX HUMIDITY........93 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH...BECOMING WEST 5 TO 6 MPH AFTER MIDNIGHT...THEN BECOMING SOUTHEAST UP TO 5 MPH LATE. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS THIS EVENING. TRANSPORT WINDS.....SOUTHWEST 5 TO 14 MPH...BECOMING WEST 2 TO 3 MPH AFTER MIDNIGHT...THEN BECOMING SOUTHEAST 1 TO 2 MPH LATE. MIXING HEIGHT.......0 FT AGL. VENTILATION RATE....POOR (MIN...0). TIME (EDT) 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM SKY (%).........71 73 73 70 67 70 WEATHER COV.....SCTTRD SCTTRD SCTTRD SCTTRD SCTTRD SCTTRD WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............76 70 66 64 63 62 RH..............58 72 83 86 91 94 20 FT WIND DIR..S S SW W S SE 20 FT WIND SPD..6 6 6 4 4 4 20 FT WIND GUST.10 10 5 5 5 MIX HGT (FT)....400 BLW100 200 200 200 BLW100 VRATE (KT-FT)...100 0 0 0 0 0 .SATURDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS LIKELY BY AFTERNOON. MAX TEMPERATURE.....76-81. MIN HUMIDITY........58 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH...BECOMING NORTHWEST 6 TO 11 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. TRANSPORT WINDS.....SOUTHEAST 3 TO 9 MPH...INCREASING TO SOUTH 16 TO 25 MPH LATE IN THE MORNING...THEN BECOMING SOUTHWEST 21 TO 28 MPH BY AFTERNOON. MIXING HEIGHT.......1600 FT AGL...INCREASING TO 4800 FT AGL LATE IN THE MORNING...THEN INCREASING TO 7300 FT AGL IN THE AFTERNOON...DECREASING TO 3700 FT AGL LATE. VENTILATION RATE....EXCELLENT (MAX...1700). $$ FORECASTER...GURNEY REQUESTED BY...DARWIN SCHULTZ - FIRE MANAGER - MI TYPE OF REQUEST...PRESCRIBED .TAG 20150508.IVESR.01/DTX