FNUS73 KDTX 081437 FWSDTX SPOT FORECAST FOR GREEN HEAD UNIT...MDNR NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 937 AM EST WED DEC 8 2010 FORECAST IS BASED ON IGNITION TIME OF 1230 EST ON DECEMBER 08. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... COLD NORTHWESTERLY FLOW IS EXPECTED TO PERSIST ACROSS THE SAGINAW VALLEY TODAY AS SOUTHEASTERN MICHIGAN REMAINS SANDWICHED BETWEEN LOW PRESSURE ACROSS EASTERN CANADA AND A HIGH PRESSURE SYSTEM THAT IS IN PLACE OVER THE PLAINS STATES. SURFACE WINDS TODAY ARE EXPECTED TO RANGE IN THE 5 TO 10 MPH RANGE. LAKE EFFECT SNOW BANDS ARE EXPECTED TO WAVER OVER THE REGION...BRINGING LITTLE TO NO ACCUMULATIONS FOR BAY COUNTY. THE MODEST SURFACE WINDS WILL DECREASE TONIGHT AND SHOULD BECOME CALM TOWARDS DAWN. THIS WILL OCCUR AS THE SURFACE HIGH BEGINS TO WEDGE INTO SOUTHEASTERN MICHIGAN LATE. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SNOW SHOWERS LIKELY THROUGH ABOUT 1600...THEN CHANCE OF SNOW SHOWERS. MAX TEMPERATURE.....24-29. MIN HUMIDITY........56 PERCENT. WIND (20 FT)........WEST WINDS 6 TO 11 MPH. TRANSPORT WINDS.....NORTHWEST 13 TO 18 MPH. MIXING HEIGHT.......7600 FT AGL...DECREASING TO 5600 FT AGL BY EVENING. VENTILATION RATE....EXCELLENT (MAX...1000). TIME (EST) NOON 2 PM 4 PM 6 PM SKY (%).........77 72 67 62 WEATHER COV.....LIKELY LIKELY CHANCE CHANCE WEATHER TYPE....SNSHWR SNSHWR SNSHWR SNSHWR TEMP............24 26 26 22 RH..............63 57 57 65 20 FT WIND DIR..W W W W 20 FT WIND SPD..9 10 9 8 20 FT WIND GUST.15 15 15 15 MIX HGT (FT)....6900 7400 7500 5600 VRATE (KT-FT)...900 900 900 600 .TONIGHT... WIND (20 FT)........WEST WINDS 5 TO 6 MPH. TRANSPORT WINDS.....WEST 5 TO 13 MPH. MIXING HEIGHT.......4200 FT AGL. TIME (EST) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM 20 FT WIND DIR..W NW NW W W W 20 FT WIND SPD..7 7 6 5 4 4 20 FT WIND GUST.10 10 5 5 MIX HGT (FT)....4800 5300 5600 5200 4700 4300 $$ FORECASTER...BEHNKE REQUESTED BY...STEVE CROSS TYPE OF REQUEST...PRESCRIBED .TAG 20101208.GREEN.01/DTX