H. REMARKS...SYSTEM HAS HAD VERY COLD CLOUD TOPS ASSOCIATED WITH CENTRAL CONVECTION FOR AT LEAST PAST 6 HRS WITH LLCC ON WESTERN EDGE OF TIGHT GRADIENT IN CLOUD TOP TEMPS. LLCC IS WITHIN .5 DEGREE OF DEEP CONVECTION FOR DT=3.0. MET AND PT=2.5. FT IS BASED ON MET.