FNUS74 KMRX 030005 FWSMRX SPOT FORECAST FOR NEW PURCHASE NATIONAL WEATHER SERVICE MORRISTOWN TN 705 PM EST WED MAR 2 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A WEAK COLD FRONT WILL SLOWLY MOVE INTO THE TENNESSEE RIVER VALLEY TONIGHT...BUT WILL ONLY BRING A REINFORCING SHOT OF DRY AIR WITH TEMPERATURES REMAINING SLIGHTLY ABOVE NORMAL. SOUTHERLY WINDS WILL DEVELOP OVER THE REGION BY FRIDAY...BRINGING AN INCREASE IN MOISTURE AND A CHANCE FOR A FEW SHOWERS. A STRONG LOW PRESSURE SYSTEM WILL THEN AFFECT THE REGION ON SATURDAY...BRINGING A GOOD CHANCE FOR RAIN. .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....62 TO 67. MIN HUMIDITY........29 TO 34 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST WINDS 6 TO 11 MPH WITH GUSTS TO AROUND 17 MPH. MIXING HEIGHT MSL...4500 FT MSL. BOTTOM MIX HGT AGL..3500 FT AGL. TOP MIX HGT AGL.....2200 FT AGL. MIXING WINDS........SOUTHEAST AROUND 22 MPH. DISPERSION..........67. .THURSDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. MIN TEMPERATURE.....40 TO 45. MAX HUMIDITY........80 TO 85 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 5 TO 19 MPH WITH GUSTS TO AROUND 15 MPH. MIXING HEIGHT MSL...DECREASING TO WITHIN 200 FEET OF SURFACE. MIXING WINDS........SOUTHEAST AROUND 20 MPH. DISPERSION..........DECREASING TO NEAR 5. .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. MAX TEMPERATURE.....AROUND 59 TO 63. MIN HUMIDITY........46 TO 51 PERCENT. WIND (20 FT)........SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH. MIXING HEIGHT MSL...3700 FT MSL. BOTTOM MIX HGT AGL..2700 FT AGL. TOP MIX HGT AGL.....1400 FT AGL. MIXING WINDS........SOUTH AROUND 35 MPH. DISPERSION..........78. $$ FORECASTER...LYLE WILSON REQUESTED BY...YVONNE LEDFORD TYPE OF REQUEST...PRESCRIBED .TAG 20110303.NEWPU.01/MRX