000 FXUS64 KBMX 170844 AFDBHM AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BIRMINGHAM, AL 243 AM CST FRI MAR 17 2000 COLD FRONT SOUTH OF AREA NOW WITH LOW CLOUDS SPREADING SOUTH. NEXT SHORT WAVE TROUGH NOW OVER CENTRAL TEXAS ALREADY PRODUCING TSRA ACROSS E TEXAS. ISENTROPIC LIFT WILL START TO INCREASE TONIGHT BUT UPPER TROUGH WILL BE WEAKENING AS IT SWINGS NE THROUGH AREA ON SATURDAY. BIG DIFFERNCES IN MOS WITH NGM HAVING NO POPS AND AVN LIKELY POPS. WILL GO IN BETWEEN WITH CHANCE CATEGORY WHICH WILL BE IN LINE WITH PREVIOUS FORECAST. A SECOND TROUGH WILL AFFECT THE AREA ON SUNDAY SO WILL HAVE TO CONTINUE THE CHANCE OF SHOWERS THROUGH THE WEEKEND. MOS TEMPS IN FAIRLY GOOD AGREEMENT BUT PREFERRED WA"RMER MINIMUM TEMPS OF AVN DUE TO EXPECTED CLOUD COVER. 67 HSV EE 056/040 058/044 055 670-3 BHM EE 063/045 060/048 058 670-4 MGM EE 069/047 064/050 063 670-5= .BHM...NONE. NNNN